CN209857919U - Multi-star equal and color temperature adjustable star simulator - Google Patents
Multi-star equal and color temperature adjustable star simulator Download PDFInfo
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- CN209857919U CN209857919U CN201920609648.7U CN201920609648U CN209857919U CN 209857919 U CN209857919 U CN 209857919U CN 201920609648 U CN201920609648 U CN 201920609648U CN 209857919 U CN209857919 U CN 209857919U
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- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000013307 optical fiber Substances 0.000 claims description 29
- 238000005530 etching Methods 0.000 claims description 16
- 238000001228 spectrum Methods 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000000265 homogenisation Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 230000003595 spectral effect Effects 0.000 description 3
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- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The utility model provides a multi-star equal and color temperature adjustable star simulator, which comprises an optical telecentric collimation module arranged at the front part of the star simulator, a star point position simulation module arranged at the middle part of the star simulator, a star point light transmission module and a star point light beam coupling module arranged in the star simulator and a star point light generation module arranged at the rear part of the star simulator; the starlight generating module generates a simulation luminous source; the star point light generation module is composed of at least two LED modules and a control circuit, the control circuit modulates an electric signal input from the outside and outputs the electric signal to the LED modules, each LED module provides a star point generation source for 1 star, and the control circuit controls the size of the color component of the LED modules independently. The modularized design method is adopted to realize the function of on-line adjustable calibration of the star, the star and the color temperature, the star and the color temperature of a plurality of constant star points can be simulated, the position precision of the star points is high, the error of the star is small, and the color temperature simulation degree is high.
Description
Technical Field
The utility model belongs to the technical field of space flight ground optics test equipment is relevant, a can be in routine test on ground for with the butt joint of star sensor, with realize star etc. and the static star simulator of many stars of colour temperature simulation.
Background
With the improvement of the precision of the space navigation positioning and the requirement of the test project, in order to meet the actual requirement of the space star sensor detection, a star simulator aiming at the detection of the actual star and the like by the star sensor and the spectrum acceptance and identification capability needs to be developed.
The traditional star simulator can only simulate the position precision and the angular distance precision between stars of star points, but cannot simulate the stars and the like of actual star points and the spectrum type of the star points. Or the method can only simulate the stars and the like of a single star and the spectral information, and cannot simulate the position distribution of the star points. Therefore, at present, no spectral type static star simulator capable of simultaneously meeting the requirements of multi-star position, multi-star and the like and adjustable color temperature exists in the field of simulators.
SUMMERY OF THE UTILITY MODEL
The utility model provides an above-mentioned technological problem adopts the modularized design method, has realized the simulation of the star class and the star spectrum type of many stars. The multi-star equal and adjustable color temperature can be normally identified and extracted by the star sensor, so that the detection precision of the ground detection equipment is greatly improved.
The utility model provides a possess the static star simulator that can simulate star etc. and star spectrum star of many fixed star point targets of analog design, this equipment volume is compact, light in weight, can carry out accurate correction to star etc. and the spectrum of the star point of simulator by the adjustable calibration technique on line, satisfies high accuracy user demand. The utility model adopts the following technical scheme:
a multi-star equal and color temperature adjustable star simulator comprises an optical telecentric collimation module arranged at the front part of the star simulator, a star point position simulation module arranged at the middle part of the star simulator, a star point light transmission module and a star point light beam coupling module arranged in the star simulator, and a star point light generation module arranged at the rear part of the star simulator;
the star point light generating module generates a simulation light emitting source, modulates the brightness and color temperature of the light source and realizes the change of star class and spectrum type of the simulation star point; the star point light generation module is composed of at least two LED modules and a control circuit, the control circuit modulates an electric signal input from the outside and outputs the electric signal to the LED modules, each LED module provides a star point generation source for 1 star, and the control circuit controls the size of the color component of each LED module independently.
Further, the star point light beam coupling module comprises an array mounting plate, a coupling connector and a coupling lens; the array mounting panel is equipped with a plurality of installation hole sites, will coupling connector goes into, coupling connector's inside is equipped with coupling lens, coupling connector's one end and LED light source are connected, the LED module is inputed the light beam star point light beam coupling module, star point light beam coupling module conducts in carrying out the coupling back and leading-in optic fibre with the light beam.
Further, the star point optical transmission module comprises an optical fiber collimator, a conducting optical fiber and an optical fiber connector; one end of the optical fiber connector is connected with the coupling connector, the other end of the optical fiber connector is connected with the conducting optical fiber, the light beam is emitted in a collimated light mode after passing through the conducting optical fiber and the optical fiber collimator, and the star point light transmission module is used for projecting the light beam into the star point position simulation module in a collimated mode after secondary homogenizing and collimating of the light beam.
Furthermore, the star point position simulation module comprises a laser precision etching star point plate, a collimator positioning hole plate and a coaxial mounting seat; the collimator vacancy orifice plate is arranged in the coaxial mounting base, the distribution of porous positions of the collimator vacancy orifice plate is consistent with that of star points etched on the laser precision etching star point plate, the optical fiber collimator is arranged in the collimator positioning orifice plate, the collimator positioning plate is arranged in the coaxial mounting base and corresponds to the star points distributed on the laser precision etching star point plate one by one, the optical fiber collimator and the laser precision etching star point plate are aligned and fixed according to the star points, and the star point position simulation module realizes the simulation of the precise star point positions in the sky area.
Further, the optical telecentric collimation module comprises an optical telecentric collimation lens, a focusing ring and an optical attenuation sheet group; the illumination attenuation of the star point that the optics decay group shows on with the laser precision etching board, optics telecentric collimation lens throws the star point again infinity supplies the star sensor to observe, the focusing ring is right optics telecentric collimation lens focuses on, optics telecentric collimation module throws out equipment with the form of infinity with simulation star point.
The utility model has the advantages of it is following: the on-line adjustable calibration technology is adopted, so that the precision of the simulated star class and the spectrum type is ensured, and the technical problem that the traditional star simulator cannot simulate the star class and the spectrum type is solved; the simulation of a plurality of fixed star point targets is realized; the device has compact volume, light weight and convenient installation and debugging.
Drawings
FIG. 1 is a schematic structural diagram of a multi-star equal and color temperature adjustable star simulator of the present invention;
FIG. 2 is an internal structure diagram of the multi-star simulator and the color temperature adjustable star simulator of the present invention;
fig. 3 is a block diagram of the multi-star equal and color temperature adjustable star simulator of the present invention.
Wherein: 100-an optical telecentric collimation module; 101-a star point position simulation module; 102-a star point light transmission module; 103 a star point light beam coupling module; 104-a star point light generating module; 1-an optical telecentric collimating lens; 2-a focusing ring; 3-an optical attenuation sheet set; 4-precisely etching the star point plate by laser; 5-positioning the orifice plate by the collimator; 6-coaxial mounting base; 7-a fiber collimator; 8-conducting optical fiber; 9-a fiber optic connector; 10-an array mounting plate; 11-a coupling connector; 12-a coupling lens; 13-an LED module; 14-control circuit.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings and examples.
As shown in fig. 1-2: the utility model relates to a star simulator that a plurality of stars wait and colour temperature can be adjusted, including the optics heart far away collimation module 100 that is located the anterior setting of star simulator, be located star point position simulation module 101 that star simulator middle part set up, be located the inside star point light transmission module 102 and the star point light beam coupling module 103 that set up of star simulator and be located the star point light generation module 104 that sets up of star simulator rear portion, star point light generation module 104 produces the simulation light emitting source, modulates luminance and the colour temperature of light source, realizes the star of simulation star point etc. and the change of spectral type; the star point light generation module 104 is composed of an LED module 13 and a control circuit 14, the control circuit 14 modulates an electric signal input from the outside and outputs the electric signal to the LED module 13, each path of LED module provides a star point generation source for 1 star, the control circuit 14 independently controls the color component of each path of the LED module 13, accurate correction can be carried out on the star grade and spectrum of the star point of the simulator by an online adjustable calibration technology, and the multi-star grade and color temperature adjustment can be normally identified and extracted by the star sensor.
The working principle of the simulator is as follows:
as shown in fig. 2 and 3: firstly, a control circuit 14 in a star point light generation module 104 modulates an electric signal input from the outside and outputs the electric signal to an LED module 13, the LED module 13 adopts a red, green, blue and white micro light source and is controlled by the control circuit 14, the control circuit 14 adopts a design method of pulse width modulation to realize brightness adjustment of each single-color light source in the LED module, the number of the LED modules 13 is 10 in total in the embodiment, a star point light generation source can be provided for 10 star points in total, the number of the LED modules and the number of the star points can be determined according to actual conditions, a red, green, blue and white four-color display method is adopted in each LED module 13, and the size of color components of each LED module 13 can be independently controlled by the control circuit 14 so as to realize the output of star class and spectrum type of different star points; the pulse width modulation method is adopted to adjust the brightness of each monochromatic light source in the LED module 13, and different brightness can be matched, so that accurate simulation of star and the like and color temperature is met.
After receiving a signal from the control circuit 14, the LED module 13 in the star point beam coupling module 103 lights up the LED module 13 and inputs a light beam into the star point beam coupling module 103, the light beam is coupled by the coupling lens 12 and then input into an optical fiber for conduction, and both ends of the coupling connector 11 are provided with a dedicated interface. One end of the coupling connector is connected with the LED light source, the other end of the coupling connector is connected with the optical fiber connector 9, and the coupling lens 12 is arranged in the coupling connector and can couple the light beams of the LED into the optical fiber. The array mounting plate 10 is provided with 10 holes for preventing the coupling connectors 11 from rotating to a D shape, the coupling connectors 11 can be firmly locked when being installed in the array mounting plate 10, the display mounting plate 10 is provided with a plurality of mounting hole positions, the coupling connectors 11 can be installed and prevented from being damaged by rotation, the LED module 13 inputs light beams into the star point light beam coupling module 103, and the star point light beam coupling module 103 couples the light beams and guides the light beams into optical fibers for conduction.
The star point light transmission module 102 comprises a light fiber connector 9, a conducting optical fiber 8 and a light fiber collimator 7, wherein the light fiber connector 9 is used for connecting the conducting optical fiber 8 and the coupling connector 11, light beams are emitted to a star point hole on the laser precision etching star point plate 4 in a collimated light mode after passing through the conducting optical fiber 8 and the light fiber collimator 7, a star point is illuminated, and the light beams are projected into the star point position simulation module 101 in a small light spot size and collimation mode after being subjected to secondary homogenizing and collimation by the star point light transmission module 102.
The star point position simulation module 101 is provided with a collimator positioning pore plate 5 processed according to the actual star point position, the collimator positioning pore plate 5 is installed inside a coaxial installation base 6, the distribution of the porous position of the collimator positioning pore plate 5 is consistent with the distribution of star point positions etched on a laser precise etching star point plate 4, an optical fiber collimator 7 can be installed in an installation hole of the collimator positioning pore plate 5, the optical fiber collimator 7 is installed in the collimator positioning pore plate 5, the collimator positioning plate 5 is installed in the coaxial installation base 6 and is consistent with the star point positions distributed on the laser precise etching star point plate 4, and the coaxial installation base 6 can ensure that the optical fiber collimator 7 and the laser precise etching star point plate 4 are aligned and fixed according to the star point positions after centering processing. The star point position simulation module 101 realizes the simulation of the accurate star point position in the sky area.
The optical attenuation sheet group 3 in the optical telecentric collimation module 100 can attenuate the illumination of the star point displayed on the laser precision etching star point plate 4, and the illumination interval of the star and the like can be achieved by online adjustable calibration and replacement of attenuation sheets with different transmittances. The optical telecentric collimating lens 1 can project star points to infinity for observation of a star sensor, and the focusing ring 2 is used as the optical telecentric collimating lens for focusing to ensure that the focal plane is in the plane of a star point plate. The optical telecentric collimating lens 1 adopts an image space telecentric optical structure, ensures that the star point light simulated by the rear end module under each view field can be completely filled in the aperture of the optical pupil, and avoids the phenomenon of fuzzy or lost star point display of the edge view field. The optical attenuation sheet group comprises a plurality of groups of correctly calibrated attenuation sheets which are arranged in a plurality of layers, the illumination of the generated star points can be attenuated to a range of a star equal range, and the optical telecentric collimation module 100 projects the simulated star points out of the equipment in an infinite form.
The star simulator can project star point images of multi-star point position distribution information, stars and the like and color temperature information to infinity to provide simulated navigation attitude information for the star sensor.
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 like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is 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 (5)
1. A multi-star equal and color temperature adjustable star simulator comprises an optical telecentric collimation module (100) arranged at the front part of the star simulator, a star point position simulation module (101) arranged at the middle part of the star simulator, a star point light transmission module (102) and a star point light beam coupling module (103) arranged in the star simulator; the method is characterized in that: the star spot light source device is characterized by also comprising a star spot light generating module (104) arranged at the rear part of the star simulator, wherein the star spot light generating module (104) generates a simulation luminous source, modulates the brightness and color temperature of the light source and realizes the change of star class and spectrum type of the simulation star spot;
star point light generation module (104) comprises LED module (13) and control circuit (14) no less than two ways, control circuit (14) modulate the signal of telecommunication of external input and export for LED module (13), every way LED module (13) provide the star point source of occurrence for 1 star, control circuit (14) are every way independently the size of the color component of LED module (13).
2. The multi-star iso-star and color temperature adjustable star simulator of claim 1, wherein the star point light beam coupling module (103) comprises an array mounting plate (10), a coupling connector (11), a coupling lens (12);
the array mounting plate (10) is provided with a plurality of mounting hole positions, the coupling connector (11) is arranged in the array mounting plate, a coupling lens (12) is arranged in the coupling connector (11), and one end of the coupling connector (11) is connected with the LED light source;
the LED module (13) inputs light beams into the star point light beam coupling module (103), and the star point light beam coupling module (103) couples the light beams and guides the light beams into optical fibers for conduction.
3. The multi-star iso-star and color temperature tunable star simulator of claim 1, wherein said star point light transmission module (102) comprises a fiber collimator (7), a conducting fiber (8) and a fiber connector (9);
one end of the optical fiber connector (9) is connected with the coupling connector (11), the other end of the optical fiber connector (9) is connected with the conducting optical fiber (8), and the light beam is emitted in a collimated light form after passing through the conducting optical fiber (8) and the optical fiber collimator (7);
and the star point light transmission module (102) performs secondary homogenization and collimation on the light beam, and then the collimated light beam is projected into the star point position simulation module (101).
4. The multi-star iso-star and color temperature adjustable star simulator of claim 3, wherein the star point position simulation module (101) comprises a laser precision etching star point plate (4), a collimator positioning hole plate (5) and a coaxial mounting seat (6);
the collimator positioning pore plate (5) is arranged in the coaxial mounting seat (6), the porous position of the collimator positioning pore plate is consistent with the distribution of the etched star point positions on the laser precise etching star point plate (4), the optical fiber collimator (7) is arranged in the collimator positioning pore plate (5), the collimator positioning pore plate (5) is arranged in the coaxial mounting seat (6) and is in one-to-one correspondence with the star point positions distributed on the laser precise etching star point plate (4), and the optical fiber collimator (7) and the laser precise etching star point plate (4) are aligned and fixed according to the star point positions;
the star point position simulation module (101) realizes the simulation of accurate star point positions in the sky area.
5. The multi-star iso-star and color temperature tunable star simulator of claim 1, wherein the optical telecentric collimation module (100) comprises an optical telecentric collimation lens (1), a focusing ring (2) and an optical attenuation sheet group (3);
the optical attenuation sheet group (3) attenuates the illumination of star points displayed on the laser precision etching star point plate (4), the optical telecentric collimating lens (1) projects the star points to infinity for observation of a star sensor, and the focusing ring (2) focuses the optical telecentric collimating lens (1);
the optical telecentric collimation module (100) projects the simulated star point out of the device in the form of infinity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920609648.7U CN209857919U (en) | 2019-04-29 | 2019-04-29 | Multi-star equal and color temperature adjustable star simulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920609648.7U CN209857919U (en) | 2019-04-29 | 2019-04-29 | Multi-star equal and color temperature adjustable star simulator |
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| CN201920609648.7U Active CN209857919U (en) | 2019-04-29 | 2019-04-29 | Multi-star equal and color temperature adjustable star simulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044381A (en) * | 2019-04-29 | 2019-07-23 | 西安中科微星光电科技有限公司 | A kind of more stars etc. and adjustable color star simulator |
| CN111060137A (en) * | 2019-12-31 | 2020-04-24 | 中国科学院长春光学精密机械与物理研究所 | multi-star simulator |
-
2019
- 2019-04-29 CN CN201920609648.7U patent/CN209857919U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044381A (en) * | 2019-04-29 | 2019-07-23 | 西安中科微星光电科技有限公司 | A kind of more stars etc. and adjustable color star simulator |
| CN110044381B (en) * | 2019-04-29 | 2024-12-20 | 西安中科微星光电科技有限公司 | A star simulator with adjustable magnitude and color temperature for multiple stars |
| CN111060137A (en) * | 2019-12-31 | 2020-04-24 | 中国科学院长春光学精密机械与物理研究所 | multi-star simulator |
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