CN109188679A - Method of adjustment, device and the lens apparatus of lens apparatus - Google Patents
Method of adjustment, device and the lens apparatus of lens apparatus Download PDFInfo
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- CN109188679A CN109188679A CN201811276785.XA CN201811276785A CN109188679A CN 109188679 A CN109188679 A CN 109188679A CN 201811276785 A CN201811276785 A CN 201811276785A CN 109188679 A CN109188679 A CN 109188679A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
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Abstract
The embodiment of the invention discloses a kind of method of adjustment of lens apparatus, device and lens apparatus, it is related to field of communication technology, main technical schemes of the invention include: when receiving the laser beam of space flight carrier transmitting, by lens assembly according to default swing angle adjustment from the shooting angle of lens assembly shoot laser beam, and laser beam adjusted is sent to photoelectric converter, so that photoelectric converter calculates the coordinate information of the laser beam adjusted；The coordinate information that photoelectric converter is sent is received, and is incident to whether the difference between the laser beam and optical axis of the photoelectric converter is less than default accidentally error threshold according to coordinate information judgement；If it is determined that being more than or equal to the default error threshold, then coordinate information continues to adjust the shooting angle from lens assembly shoot laser beam based on the received, until the difference between the laser beam and optical axis for being incident to the photoelectric converter is less than default error threshold.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for adjusting a lens device and the lens device.
Background
With the rapid development of aerospace technology, an aircraft has become a relatively popular vehicle, and in order to improve the flight experience of passengers, a mobile phone is allowed to be used during the flight of the aircraft, so that the requirement for communication is increasing, and many airlines provide communication services for the passengers in order to improve the service quality and attract more passengers, for example: the use of satellites can provide communication services to passengers to increase their recreational activities and eliminate the hassle of travel.
At present, satellite-borne equipment provides communication services by receiving and transmitting laser. In the specific implementation process, the inventor finds that in the prior art, the field of view of the received laser beam is large, and the number of received invalid laser beams is large, so that the provided communication service is unstable, and the user experience is reduced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for adjusting a lens device, and mainly aim to solve the problem that a communication service provided by a camera is unstable due to a large field of view of a received laser beam and a large number of received invalid laser beams.
In order to solve the above problems, embodiments of the present invention mainly provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides an adjusting method for a lens device, where the method includes:
when a laser beam emitted by the space flight vehicle is received, the lens assembly adjusts an emergent angle of the laser beam emitted from the lens assembly according to a preset swing angle, and the adjusted laser beam is sent to the photoelectric converter, so that the photoelectric converter can calculate the coordinate information of the adjusted laser beam;
receiving the coordinate information sent by the photoelectric converter, and judging whether the difference between a laser beam incident to the photoelectric converter and an optical axis is smaller than a preset error threshold value or not according to the coordinate information;
if the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the received coordinate information.
Optionally, before sending the adjusted laser beam to the photoelectric converter, the method further includes:
sending the adjusted laser beam to a wave plate module so that the wave plate module converts the adjusted circularly polarized laser beam into a linearly polarized laser beam; the laser beam adjusted by the lens assembly is a circularly polarized laser beam;
and transmitting the linear polarization laser beam converted into the linear polarization laser beam to a polarization beam splitting module so that the polarization beam splitting module can transmit the P polarization laser beam, and transmitting the P polarization laser beam to the beam splitting module so that the beam splitting module can transmit the adjusted laser beam to the photoelectric converter.
Optionally, the method further includes:
and setting a swing angle of the lens assembly according to the view field angle for receiving the laser beam, wherein the swing angle is larger than the view field angle.
In a second aspect, an embodiment of the present invention further provides an adjusting method for a lens apparatus, where the method includes:
when a laser beam sent by a lens assembly is received, a photoelectric converter forms a light spot image plane image corresponding to the laser beam according to the laser beam;
and calculating the coordinate information of the laser beam according to the position information of the light spot in the light spot image plane diagram, and sending the coordinate information to the lens assembly so that the lens assembly can adjust the emergent angle of the laser beam emergent from the lens assembly.
Optionally, the method further includes:
receiving the laser beam transmitted by the light splitting module;
the laser beam transmitted by the light splitting module is transmitted to the wave plate module by the lens assembly, then the circularly polarized laser beam is converted into a linearly polarized laser beam by the wave plate module, the converted laser beam is transmitted to the polarization light splitting module, and the polarization light splitting module transmits the P polarized laser beam to the light splitting module.
In a third aspect, an embodiment of the present invention further provides an adjusting apparatus for a lens device, where the apparatus includes:
the first adjusting unit is used for adjusting an emergent angle of the laser beam emitted from the lens assembly according to a preset swing angle by the lens assembly when the laser beam emitted from the space flight vehicle is received;
the first sending unit is used for sending the laser beam adjusted by the first adjusting unit to a photoelectric converter so that the photoelectric converter can calculate the coordinate information of the adjusted laser beam;
the receiving unit is used for receiving the coordinate information sent by the photoelectric converter;
the judging unit is used for judging whether the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than a preset error threshold value or not according to the coordinate information received by the receiving unit;
and the second adjusting unit is used for continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the coordinate information received by the receiving unit when the difference between the laser beam incident to the photoelectric converter and the optical axis is larger than or equal to the preset error threshold.
Optionally, the apparatus further comprises:
the second sending unit is used for sending the adjusted laser beam to the wave plate module before the first adjusting unit sends the adjusted laser beam to the photoelectric converter, so that the wave plate module can convert the adjusted circularly polarized laser beam into a linearly polarized laser beam; the laser beam adjusted by the lens assembly is a circularly polarized laser beam;
and the third sending unit is used for sending the linear polarization laser beam converted into the linear polarization laser beam to the polarization beam splitting module so that the polarization beam splitting module can transmit the P polarization laser beam, and sending the P polarization laser beam to the beam splitting module so that the beam splitting module can transmit the adjusted laser beam to the photoelectric converter.
Optionally, the apparatus further comprises:
the setting unit is used for setting the swing angle of the lens assembly according to the view field angle for receiving the laser beam, and the swing angle is larger than the view field angle.
In a fourth aspect, an embodiment of the present invention further provides an adjusting apparatus for a lens device, where the apparatus includes:
the setting unit is used for setting the swing angle of the lens assembly according to the view field angle for receiving the laser beam, and the swing angle is larger than the view field angle.
In a fourth aspect, an embodiment of the present invention further provides an adjusting apparatus for a lens device, where the apparatus includes:
the forming unit is used for forming a light spot image plane image corresponding to the laser beam according to the laser beam by the photoelectric converter when the laser beam sent by the lens assembly is received;
the calculating unit is used for calculating the coordinate information of the laser beam according to the position information of the light spot in the light spot image plane image formed by the forming unit;
and the third sending unit is used for sending the coordinate information calculated by the calculating unit to the lens assembly so that the lens assembly can adjust the emergent angle of the laser beam emergent from the lens assembly.
Optionally, the apparatus further comprises:
and the second receiving unit is used for receiving the laser beam transmitted by the light splitting module, wherein the laser beam transmitted by the light splitting module is transmitted to the wave plate module by the lens assembly, then the wave plate module converts the circularly polarized laser beam into a linearly polarized laser beam, and transmits the converted laser beam to the polarization light splitting module, and the polarization light splitting module transmits the P polarized laser beam to the light splitting module.
In a fifth aspect, an embodiment of the present invention further provides a star lens assembly, including: a processor, a memory, a communication interface, and a bus;
wherein,
the processor, the memory and the communication interface complete mutual communication through the bus;
the communication interface is used for information transmission between the lens assembly and the communication equipment of the photoelectric converter;
the processor is configured to call program instructions in the memory to execute the adjustment method of the lens apparatus described in the first aspect.
In a sixth aspect, an embodiment of the present invention further provides a photoelectric converter, including: a processor, a memory, a communication interface, and a bus;
wherein,
the processor, the memory and the communication interface complete mutual communication through the bus;
the communication interface is used for information transmission between the photoelectric converter and the communication equipment of the satellite-borne lens assembly;
the processor is configured to call program instructions in the memory to execute the adjustment method of the lens apparatus described in the second aspect.
In a seventh aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the adjustment method for a lens apparatus according to any one of the first aspect.
And/or the computer instructions cause the computer to execute the adjustment method of the adjustment of the lens apparatus according to any one of the second aspects.
By the technical scheme, the technical scheme provided by the embodiment of the invention at least has the following advantages:
according to the adjusting method and device for the lens equipment and the lens equipment, when the laser beam emitted by the space flight vehicle is received, the lens assembly adjusts the emitting angle of the laser beam emitted from the lens assembly according to the preset swing angle, and the adjusted laser beam is sent to the photoelectric converter, so that the photoelectric converter can calculate the coordinate information of the adjusted laser beam; receiving the coordinate information sent by the photoelectric converter, and judging whether the difference between a laser beam incident to the photoelectric converter and an optical axis is smaller than a preset error threshold value or not according to the coordinate information; if the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the received coordinate information. Compared with the prior art that the field of view of the received laser beams is larger and the received invalid laser beams are more, which causes instability of the provided communication service, the satellite-borne lens assembly is added, the emergent angle of the laser beams emitted by the lens assembly is changed by adjusting the swing angle of the satellite-borne lens assembly, the effective laser beams are received, and the stability of the communication service is improved.
The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and the embodiments of the present invention can be implemented according to the content of the description in order to make the technical means of the embodiments of the present invention more clearly understood, and the detailed description of the embodiments of the present invention is provided below in order to make the foregoing and other objects, features, and advantages of the embodiments of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the embodiments of the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart illustrating an adjustment method for a first lens device according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating an adjustment method of a second lens apparatus according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an adjustment method of a third lens apparatus according to an embodiment of the present invention;
fig. 4 is a block diagram showing the components of an adjusting apparatus of a first lens device according to an embodiment of the disclosure;
fig. 5 is a block diagram showing the components of an adjusting apparatus of a second lens device according to an embodiment of the disclosure;
fig. 6 is a block diagram showing the components of an adjusting apparatus of a third lens device according to an embodiment of the disclosure;
fig. 7 is a block diagram illustrating a composition of an adjusting apparatus of a fourth lens device according to an embodiment of the disclosure;
FIG. 8 illustrates a frame diagram of a lens assembly provided by embodiments of the present disclosure;
fig. 9 shows a frame schematic diagram of a photoelectric converter provided by the disclosed embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides an adjusting method of a lens device, and mainly aims to solve the problems that the field of view of received laser beams is large, and the number of received invalid laser beams is large, so that the provided communication service is unstable. In order to solve the above problem, an embodiment of the disclosure provides an adjusting method of a lens apparatus, as shown in fig. 1, the method including:
101. when receiving the laser beam emitted by the space flight vehicle, the lens assembly adjusts the emitting angle of the laser beam emitted from the lens assembly according to the preset swing angle, and sends the adjusted laser beam to the photoelectric converter.
In practical applications, the satellite according to the embodiment of the present disclosure is a communication satellite, and is mainly used for providing communication services for a space flight vehicle, such as, for example, television broadcasting, data transmission, weather, and the like, and the specific use of the satellite is not limited in the embodiment of the present disclosure, and the space flight vehicle may include, but is not limited to, the following, for example: airplanes, rockets, and the like.
The receiving module of the satellite can only receive the communication light with a specific view field angle to complete signal transmission, the received specific view field can be set, but the set value is not easy to be too large, in the embodiment disclosed by the invention, the set value can be set to 40 micro radians (40 μ rad), and more stable communication service can be provided only if the incident angle of the received laser beam is smaller than the set specific view field. Because the relative position of the space-borne vehicle and the satellite is not fixed, or the laser beam is changed in the transmitting and transmitting process, and the receiving view field angle set by the receiving system influences, most of the laser beams received by the lens assembly have a certain incident angle, and the satellite-borne lens equipment needs to adjust the emergent angle of the laser beams emitted by the lens assembly, so that stable communication service is provided for the space-borne vehicle. The method for adjusting the exit angle of the laser beam emitted by the lens assembly may include, but is not limited to, the following methods: the lens assembly is added, the lens assembly can reflect the received laser beam, the laser beam reflected by the lens assembly is used as communication light, the emergent angle of the laser beam is adjusted by swinging the angle position of the lens assembly in real time, and the like.
In the disclosed embodiment of the present invention, the purpose of sending the adjusted laser beam to the photoelectric converter is to detect whether the difference between the adjusted laser beam and the optical axis is less than a preset error threshold value, so as to perform accurate adjustment of the lens assembly. In an embodiment of the present invention, the photoelectric converter may be a cmos sensor, the photoelectric converter forms a light spot image map from the received laser beam, and calculates coordinate information of the received laser beam according to a position corresponding to the laser beam in the light spot image map, and the method of calculating the coordinate information of the laser beam may include, but is not limited to, the following: the first method is as follows: calculating according to the system focal length corresponding to the photoelectric converter and the corresponding position of the laser beam in the light spot image plane; the second method comprises the following steps: a coordinate system exists in the spot image, and the actual coordinate information of the laser beam is calculated according to the coordinate information of the laser beam in the spot image by scaling, and the actual coordinate information can include but is not limited to the following: the exit angle of the transmission laser beam, the transmission position, and the like.
102. And receiving the coordinate information sent by the photoelectric converter, and judging whether the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than a preset error threshold value or not according to the coordinate information.
In the embodiment disclosed by the invention, before the satellite-borne lens assembly receives the laser beam emitted by the space flight vehicle, the swinging angle of the lens assembly is preliminarily set according to the receiving view field angle and the approximate incident angle of the laser beam, errors may exist in the adjustment of the emergent angle of the laser beam emitted by the lens assembly, and the emergent angle of the laser beam is obtained by receiving the coordinate information of the laser beam sent by the photoelectric converter so as to continuously adjust the swinging angle of the lens assembly according to the emergent angle of the laser beam.
103. If the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the received coordinate information.
If the difference between the laser beam incident to the photoelectric converter and the optical axis is determined to be greater than or equal to the preset error threshold, the swing angle of the lens assembly is continuously adjusted according to the coordinate information of the laser beam provided by the photoelectric converter so as to adjust the emergent angle of the laser beam until the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, namely all the light spots of the laser beam sent to the photoelectric converter are located at the center position of the light spot image plane diagram corresponding to the laser beam. It should be noted that, during the continuous operation of the satellite-borne lens device, the photoelectric converter needs to transmit the laser beam coordinate information in real time, so that the lens assembly can perform the swing angle adjustment to provide stable communication service.
According to the satellite-borne lens equipment adjusting method provided by the embodiment of the invention, a lens assembly receives a laser beam, adjusts the emergent angle of the laser beam according to a preset swing angle, sends the adjusted laser beam to a photoelectric converter, receives the coordinate information sent by the photoelectric converter, and determines whether the difference between the laser beam incident to the photoelectric converter and an optical axis is smaller than a preset error threshold value or not; if the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the received coordinate information. Compared with the prior art that the field of view of the received laser beams is larger and the received invalid laser beams are more, which causes instability of the provided communication service, the satellite-borne lens assembly is added, the emergent angle of the laser beams emitted by the lens assembly is changed by adjusting the swing angle of the satellite-borne lens assembly, the effective laser beams are received, and the stability of the communication service is improved.
The embodiment of the present disclosure further provides another method for a satellite-borne lens device, as shown in fig. 2, including:
201. when receiving the laser beam sent by the lens assembly, the photoelectric converter forms a light spot image plane corresponding to the laser beam according to the laser beam.
In the embodiment disclosed by the invention, the photoelectric converter is mainly used for precisely tracking the laser beam, and when the laser beam sent by the lens assembly is received, the photoelectric converter plays a role of a display at the moment, sends the laser beam to a photoelectric converter display screen with a coordinate system, and forms a light spot image plane corresponding to the laser beam.
202. And calculating the coordinate information of the laser beam according to the position information of the light spot in the light spot image plane diagram, and sending the coordinate information to the lens assembly so that the lens assembly can adjust the emergent angle of the laser beam emergent from the lens assembly.
In the embodiment disclosed by the invention, the photoelectric converter calculates the actual coordinate information of the laser beam according to the coordinate information of the laser beam in the light spot image plane, and sends the actual coordinate information to the lens assembly, so that the lens assembly corrects the adjustment error of the swing angle, changes the swing angle and increases effective communication light.
In the adjusting method of the lens device according to the embodiment of the present invention, when a laser beam transmitted by a lens assembly is received, a photoelectric converter forms a light spot image plane diagram corresponding to the laser beam according to the laser beam, calculates coordinate information of the laser beam according to position information of a light spot in the light spot image plane diagram, and transmits the coordinate information to the lens assembly, so that the lens assembly adjusts an exit angle of the laser beam exiting from the lens assembly. Compared with the prior art that the field of view of the received laser beam is larger and the received invalid laser beam is more, which causes instability of the provided communication service, the invention increases the use of the photoelectric converter to carry out precise tracking on the laser beam and provides the coordinate information of the laser beam for the lens assembly, thereby realizing adjustment of the emergent angle of the laser beam, increasing the received effective communication light and improving the quality of the communication service.
As a refinement and an extension of the above embodiments, in an embodiment disclosed in the present invention, a laser beam sent from a lens assembly to a photoelectric converter uses a wave plate module to change a polarization state, and sends the laser beam with the changed polarization state to a polarization splitting module to transmit a P-polarized laser beam splitting module, so that the splitting module projects the adjusted laser beam to the photoelectric converter to realize precise tracking of the laser beam, and provides data information for adjusting an exit angle of the laser beam for the lens assembly, and to implement the above functions, an embodiment of the present invention further provides an adjusting method of a lens apparatus, as shown in fig. 3, the method includes:
301. and setting a swing angle of the lens assembly according to the view field angle for receiving the laser beam, wherein the swing angle is larger than the view field angle.
In the embodiment disclosed by the invention, the view field angle of the laser beam received by the signal receiving system of the satellite is limited, needs to be preset, and in practical application, the view field angle can be preset, and during specific setting, the view field angle is not easy to be set too large, such as plus or minus 180 degrees (+ -180 degrees), the incident angle of the received laser beam is too large and is not easy to be adjusted, most of generated communication light is invalid light, and communication service cannot be provided; and the laser beam is too single to be received, and the laser beam emitted by the space flying vehicle is not completely received, so that the communication service cannot be provided for the space flying vehicle. In the embodiment disclosed by the invention, the receiving field of view can be preset to be +/-2 degrees.
In order to change the emitting angle of all the received laser beams, the swinging angle of the lens assembly needs to be preset to adjust the emitting angle of the laser beams, and the set swinging angle should be larger than the receiving view field angle, and the swinging angle can be preset to be +/-5 degrees in the embodiment disclosed by the invention.
302. When receiving the laser beam emitted by the space flight vehicle, the lens assembly adjusts the emitting angle of the laser beam emitted from the lens assembly according to the preset swing angle.
For the description of step 302, please refer to the detailed description of step 101, and the embodiments of the present invention are not described herein again.
303. The lens assembly sends the adjusted laser beam to a wave plate module so that the wave plate module converts the adjusted circularly polarized laser beam into a linearly polarized laser beam.
304. The lens assembly converts the linear polarization laser beam into a linear polarization laser beam and sends the linear polarization laser beam to the polarization beam splitting module, so that the polarization beam splitting module can transmit the P polarization laser beam, and the P polarization laser beam is sent to the beam splitting module, so that the beam splitting module can transmit the adjusted laser beam to the photoelectric converter.
In the embodiment disclosed in the present invention, the laser beam adjusted by the lens assembly is circularly polarized light, while the laser beam actually used as communication light is linearly polarized laser beam, and the circularly polarized light transmitted by the lens assembly is converted into a linearly polarized laser beam by the wave plate module. Changing to a linearly polarized laser beam requires reflecting the S-polarized light to the lens assembly via the polarization splitting module and transmitting the P-polarized laser beam to the splitting module. The adjusted non-normal incidence laser beam is used as communication light and is reflected to the photoelectric converter by the light splitting module, so that the photoelectric converter can accurately track the laser beam, data information is provided for adjusting the swing angle of the lens assembly, the adjusted laser beam is sent to the communication receiving part as the communication light, communication is completed, the reflected laser beam can be sent through the long-distance collimation system, the condition that the adjusted laser beam is influenced to generate an incidence angle in the long-distance transmission process is avoided, and the non-normal incidence refers to the condition that the incidence angle is larger than the view field angle of a communication light receiving section.
305. And the photoelectric converter receives the laser beam transmitted by the light splitting module and forms a light spot image plane image corresponding to the laser beam according to the laser beam.
For the description of step 305, please refer to the detailed description of step 201, and the embodiments of the present invention will not be described herein again.
306. And the photoelectric converter calculates the coordinate information of the laser beam according to the position information of the light spot in the light spot image plane diagram and sends the coordinate information to the lens assembly.
For the description of step 306, please refer to the detailed description of step 202, and the embodiments of the present invention will not be described herein.
307. And the lens assembly receives the coordinate information sent by the photoelectric converter and judges whether the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than a preset error threshold value or not according to the coordinate information.
For the description of step 307, please refer to the detailed description of step 102, and the embodiments of the present invention will not be described herein.
308. If the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the received coordinate information.
For the description of step 308, please refer to the detailed description of step 103, and the embodiments of the present invention will not be described herein.
In summary, the laser beam adjusted by the lens assembly is sent to the wave plate module for polarization state conversion, the laser beam converted into linear polarization is sent to the polarization beam splitting module, the polarization beam splitting module transmits the P-polarization laser beam to the beam splitting module, and the beam splitting module transmits the adjusted laser beam to the photoelectric converter, so that the laser beam is accurately tracked, data information is provided for adjusting the swing angle of the lens assembly, the adjustment of the exit angle of the laser beam is completed, and stable communication service is provided.
As an implementation of the method shown in fig. 1, another embodiment of the disclosure further provides an adjusting apparatus of a lens device. The embodiment of the apparatus corresponds to the embodiment of the method, and for convenience of reading, details in the embodiment of the apparatus are not repeated one by one, but it should be clear that the apparatus in the embodiment can correspondingly implement all the contents in the embodiment of the method.
An embodiment of the disclosure of the present invention further provides an apparatus for adjusting a lens device, as shown in fig. 4, including:
a first adjusting unit 41, configured to adjust, by the lens assembly, an exit angle of the laser beam exiting from the lens assembly according to a preset swing angle when receiving the laser beam emitted by the space flight vehicle;
a first transmitting unit 42 configured to transmit the laser beam adjusted by the first adjusting unit 41 to a photoelectric converter so that the photoelectric converter calculates coordinate information of the adjusted laser beam;
a receiving unit 43, configured to receive the coordinate information sent by the photoelectric converter;
a determining unit 44, configured to determine whether a difference between a laser beam incident to the photoelectric converter and an optical axis is smaller than a preset error threshold according to the coordinate information received by the receiving unit 43;
and a second adjusting unit 45, configured to, when it is determined that the difference is greater than or equal to the preset error threshold, continue to adjust the exit angle of the laser beam exiting from the lens assembly according to the coordinate information received by the receiving unit until the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold.
According to the satellite-borne lens equipment adjusting device provided by the embodiment of the invention, the lens assembly receives the laser beam, adjusts the emergent angle of the laser beam according to the preset swing angle, sends the adjusted laser beam to the photoelectric converter, receives the coordinate information sent by the photoelectric converter, and judges whether the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold value or not; if the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the received coordinate information. Compared with the prior art that the field of view of the received laser beams is larger and the received invalid laser beams are more, which causes instability of the provided communication service, the satellite-borne lens assembly is added, the emergent angle of the laser beams is changed by adjusting the swing angle of the satellite-borne lens assembly, the effective laser beams are received, and the stability of the communication service is improved.
Further, as shown in fig. 5, the apparatus further includes:
a second sending unit 46, configured to send the adjusted laser beam to a wave plate module before the first adjusting unit 41 sends the adjusted laser beam to the photoelectric converter, so that the wave plate module converts the adjusted circularly polarized laser beam into a linearly polarized laser beam; the laser beam adjusted by the lens assembly is a circularly polarized laser beam;
the third sending unit 47 is configured to send the linear polarization laser beam converted into the linear polarization laser beam to the polarization splitting module, so that the polarization splitting module can transmit the P-polarization laser beam, and send the P-polarization laser beam to the splitting module, so that the splitting module can transmit the adjusted laser beam to the photoelectric converter.
Further, as shown in fig. 5, the apparatus further includes:
a setting unit 48, configured to set a swing angle of the lens assembly according to a viewing angle of receiving the laser beam, where the swing angle is greater than the viewing angle.
An embodiment of the present disclosure further provides an adjusting apparatus of a lens device, as shown in fig. 6, including:
a forming unit 51, configured to form, by a photoelectric converter, a light spot image corresponding to the laser beam according to the laser beam when receiving the laser beam sent by the lens assembly;
a calculating unit 52 for calculating coordinate information of the laser beam based on the position information of the light spot in the light spot image formed by the forming unit 51;
a third sending unit 53, configured to send the coordinate information calculated by the calculating unit 52 to the lens assembly, so that the lens assembly adjusts an exit angle of the laser beam exiting from the lens assembly.
In the adjusting apparatus of the lens device according to the embodiment of the present invention, when a laser beam transmitted by the lens assembly is received, the photoelectric converter forms a light spot image plane diagram corresponding to the laser beam according to the laser beam, calculates coordinate information of the laser beam according to position information of a light spot in the light spot image plane diagram, and transmits the coordinate information to the lens assembly, so that the lens assembly adjusts an emission angle of the laser beam emitted from the lens assembly. Compared with the prior art that the field of view of the received laser beam is larger and the received invalid laser beam is more, which causes instability of the provided communication service, the invention increases the use of the photoelectric converter to carry out precise tracking on the laser beam and provides the coordinate information of the laser beam for the lens assembly, thereby realizing adjustment of the emergent angle of the laser beam, increasing the received effective communication light and improving the quality of the communication service.
Further, as shown in fig. 7, the apparatus further includes:
and a second receiving unit 54, configured to receive the laser beam transmitted by the light splitting module, where the laser beam transmitted by the light splitting module is sent to the wave plate module by the lens assembly, the wave plate module converts the circularly polarized laser beam into a linearly polarized laser beam, and sends the converted laser beam to the polarization light splitting module, and the polarization light splitting module transmits the P-polarized laser beam to the light splitting module.
In summary, the laser beam adjusted by the lens assembly is sent to the wave plate module for polarization state conversion, and to sum up, the laser beam adjusted by the lens assembly is sent to the wave plate module for polarization state conversion, and the laser beam converted into linear polarization is sent to the polarization splitting module, and the polarization splitting module transmits the P-polarization laser beam to the splitting module, and the splitting module transmits the adjusted laser beam to the photoelectric converter, so as to realize fine tracking of the laser beam, provide data information for adjusting the swing angle of the lens assembly, complete the adjustment of the exit angle of the laser beam, and provide stable communication service.
Since the adjusting apparatus of the lens device described in this embodiment is a device capable of executing the adjusting method of the lens device in the embodiment of the present invention, based on the adjusting method of the lens device described in the embodiment of the present invention, a person skilled in the art can understand the specific implementation of the adjusting apparatus of the lens device of this embodiment and various variations thereof, and therefore, how to implement various adjusting methods of the lens device in the embodiment of the present invention by the adjusting apparatus of the lens device is not described in detail herein. As long as those skilled in the art implement the apparatus used in the method for adjusting a lens device in the embodiment of the present invention, the apparatus is within the scope of the present application.
An embodiment of the present invention provides a satellite-borne lens assembly, as shown in fig. 8, including: at least one processor (processor) 61; and at least one memory (memory)62, a communication interface 63, a bus 64 connected to the processor 61; wherein,
the processor 61, the memory 62 and the communication interface 63 complete mutual communication through the bus 64;
the communication interface 63 is used for information transmission between the satellite-borne lens assembly and the communication equipment of the photoelectric converter;
the processor 61 is configured to call program instructions in the memory 62 to perform the steps in the above-described method embodiments.
An embodiment of the present invention provides a photoelectric converter, as shown in fig. 9, including: the method comprises the following steps: at least one processor (processor) 71; and at least one memory (memory)72, a communication interface 73, a bus 74 connected to the processor 71; wherein,
the processor 71, the memory 72 and the communication interface 73 complete mutual communication through the bus 74;
the communication interface 73 is used for information transmission between the photoelectric converter and the communication equipment of the satellite-borne lens assembly;
the processor 71 is configured to call program instructions in the memory 72 to perform the steps in the above-described method embodiments.
Embodiments of the present invention provide a non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the methods provided by the above-mentioned method embodiments.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (11)
1. An adjustment method of a lens apparatus, comprising:
when a laser beam emitted by the space flight vehicle is received, the lens assembly adjusts an emergent angle of the laser beam emitted from the lens assembly according to a preset swing angle, and the adjusted laser beam is sent to the photoelectric converter, so that the photoelectric converter can calculate the coordinate information of the adjusted laser beam;
receiving the coordinate information sent by the photoelectric converter, and judging whether the difference between a laser beam incident to the photoelectric converter and an optical axis is smaller than a preset error threshold value or not according to the coordinate information;
if the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than the preset error threshold, continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the received coordinate information.
2. The method of claim 1, wherein prior to said sending the adjusted laser beam to a photoelectric converter, the method further comprises:
sending the adjusted laser beam to a wave plate module so that the wave plate module converts the adjusted circularly polarized laser beam into a linearly polarized laser beam; the laser beam adjusted by the lens assembly is a circularly polarized laser beam;
and transmitting the linear polarization laser beam converted into the linear polarization laser beam to a polarization beam splitting module so that the polarization beam splitting module can transmit the P polarization laser beam, and transmitting the P polarization laser beam to the beam splitting module so that the beam splitting module can transmit the adjusted laser beam to the photoelectric converter.
3. The method of claim 1, further comprising:
and setting a swing angle of the lens assembly according to the view field angle for receiving the laser beam, wherein the swing angle is larger than the view field angle.
4. An adjustment method of a lens apparatus, comprising:
when a laser beam sent by a lens assembly is received, a light spot image plane corresponding to the laser beam is formed by a photoelectric converter according to the laser beam;
and calculating the coordinate information of the laser beam according to the position information of the light spot in the light spot image plane diagram, and sending the coordinate information to the lens assembly so that the lens assembly can adjust the emergent angle of the laser beam emergent from the lens assembly.
5. The method of claim 4, wherein the receiving the laser beam transmitted by the lens assembly comprises:
receiving the laser beam transmitted by the light splitting module;
the laser beam transmitted by the light splitting module is transmitted to the wave plate module by the lens assembly, then the circularly polarized laser beam is converted into a linearly polarized laser beam by the wave plate module, the converted laser beam is transmitted to the polarization light splitting module, and the polarization light splitting module transmits the P polarized laser beam to the light splitting module.
6. An adjusting apparatus of a lens device, comprising:
the first adjusting unit is used for adjusting an emergent angle of the laser beam emitted from the lens assembly according to a preset swing angle by the lens assembly when the laser beam emitted from the space flight vehicle is received;
the first sending unit is used for sending the laser beam adjusted by the first adjusting unit to a photoelectric converter so that the photoelectric converter can calculate the coordinate information of the adjusted laser beam;
the receiving unit is used for receiving the coordinate information sent by the photoelectric converter;
the judging unit is used for judging whether the difference between the laser beam incident to the photoelectric converter and the optical axis is smaller than a preset error threshold value or not according to the coordinate information received by the receiving unit;
and the second adjusting unit is used for continuously adjusting the emergent angle of the laser beam emergent from the lens assembly according to the coordinate information received by the receiving unit when the difference between the laser beam incident to the photoelectric converter and the optical axis is larger than or equal to the preset error threshold.
7. The apparatus of claim 6, further comprising:
the second sending unit is used for sending the adjusted laser beam to the wave plate module before the first adjusting unit sends the adjusted laser beam to the photoelectric converter, so that the wave plate module can convert the adjusted circularly polarized laser beam into a linearly polarized laser beam; the laser beam adjusted by the lens assembly is a circularly polarized laser beam;
and the third sending unit is used for sending the linear polarization laser beam converted into the linear polarization laser beam to the polarization beam splitting module so that the polarization beam splitting module can transmit the P polarization laser beam, and sending the P polarization laser beam to the beam splitting module so that the beam splitting module can transmit the adjusted laser beam to the photoelectric converter.
8. An adjusting apparatus of a lens device, comprising:
the forming unit is used for forming a light spot image plane image corresponding to the laser beam according to the laser beam by the photoelectric converter when the laser beam sent by the lens assembly is received;
the calculating unit is used for calculating the coordinate information of the laser beam according to the position information of the light spot in the light spot image plane image formed by the forming unit;
and the third sending unit is used for sending the coordinate information calculated by the calculating unit to the lens assembly so that the lens assembly can adjust the emergent angle of the laser beam emergent from the lens assembly.
9. A lens assembly, comprising: a processor, a memory, a communication interface, and a bus;
wherein,
the processor, the memory and the communication interface complete mutual communication through the bus;
the communication interface is used for information transmission between the satellite-borne lens assembly and communication equipment of the photoelectric converter;
the processor is configured to call program instructions in the memory to perform the adjustment method of the lens apparatus of claims 1 to 3.
10. A photoelectric converter, comprising: a processor, a memory, a communication interface, and a bus;
wherein,
the processor, the memory and the communication interface complete mutual communication through the bus;
the communication interface is used for information transmission between the photoelectric converter and the communication equipment of the lens assembly;
the processor is configured to call program instructions in the memory to execute the adjusting method of the lens apparatus of claims 4 to 5.
11. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the adjustment method of the lens apparatus according to any one of claims 1 to 3;
and/or the computer instructions cause the computer to execute the adjustment method of the lens apparatus of any one of claim 4 to claim 5.
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| CN201811276785.XA CN109188679A (en) | 2018-10-30 | 2018-10-30 | Method of adjustment, device and the lens apparatus of lens apparatus |
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| CN201811276785.XA CN109188679A (en) | 2018-10-30 | 2018-10-30 | Method of adjustment, device and the lens apparatus of lens apparatus |
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