CN222145212U - Optical lens group, sensor and vehicle - Google Patents

Abstract

The utility model discloses an optical lens group, a sensor and a vehicle. The optical lens group includes: a receiving lens and at least one transmitting lens. The receiving lens includes a plurality of sub-receiving lenses, the transmitting lens is arranged on the peripheral side of the receiving lens, and the transmitting lens includes a plurality of sub-transmitting lenses. The plurality of sub-receiving lenses and the plurality of sub-transmitting lenses are all distributed along the circumference of the receiving lens. According to the transmitting lens of the embodiment of the utility model, the transmitting lens is arranged on the peripheral side of the receiving lens, and the transmitting lens includes a plurality of sub-transmitting lenses. The receiving lens can receive light emitted by different transmitting lenses. Since the transmitting lens includes a plurality of sub-transmitting lenses and the receiving lens includes a plurality of sub-receiving lenses, the plurality of sub-receiving lenses can receive light from a plurality of sub-transmitting lenses, which can increase the utilization rate of the transmitting lens for light, increase the area of optical sensing, and increase the sensitivity of the product having the optical lens group. At the same time, the structure and volume of the optical lens group can be reduced, which is convenient for the integrated design of the optical lens group.

Description

Optical lens group, sensor and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to an optical lens group, a sensor and a vehicle.

Background

The integrated sensor integrating rainfall, sunlight and ambient light induction is one of necessary sensors for intelligent development of automobiles and further improving safety, can reduce operation of drivers, improve stability, reliability and intelligence of products, and can improve safety and comfort of driving. At present, the common automatic windshield wiper of an optical rain sensor of a passenger car is not sensitive enough, and the main reason is that the sensor is arranged in front windshield for internal measurement, and the installation position of the rain sensor cannot be large enough due to space limitation of the installation position and the requirements of various intelligent product layouts, so that the optical sensing area of the rain sensor is small, and the information acquired by the sensor is not accurate enough. In the aspect of optical lens design, the current rainfall detection lens unit needs to be made larger and thicker to enlarge a raindrop sensing area, occupies the internal space of a product, and is not beneficial to the integration of more functions of a sensor.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, a first object of the present utility model is to provide an optical lens assembly with increased optical sensing area and improved product function integration.

A second object of the present utility model is to provide a sensor comprising the optical lens group described in the above embodiments.

A third object of the utility model is to propose a vehicle comprising a sensor as described above.

An optical lens group according to an embodiment of the first aspect of the present utility model includes a receiving lens including a plurality of sub-receiving lenses distributed along a circumferential direction of the receiving lens, at least one transmitting lens provided on an outer circumferential side of the receiving lens, the transmitting lens including a plurality of sub-transmitting lenses distributed along the circumferential direction of the receiving lens.

According to the embodiment of the utility model, the transmitting lens is arranged on the outer peripheral side of the receiving lens, the receiving lens comprises a plurality of sub-transmitting lenses, the receiving lens can receive light rays emitted by different transmitting lenses, and the receiving lens comprises a plurality of sub-receiving lenses, so that the plurality of sub-receiving lenses can receive the light rays of the plurality of sub-transmitting lenses, the utilization rate of the transmitting lenses on the light rays can be increased, the optical induction area is increased, the sensitivity of a product with an optical lens group is increased, the structure and the volume of the optical lens group can be reduced, and the integrated design of the optical lens group is facilitated.

In some embodiments, the plurality of sub-emission lenses includes a first sub-emission lens and a second sub-emission lens, the first sub-emission lens being located on a side of the second sub-emission lens remote from the receiving lens.

In some embodiments, a width of the second sub-emission lens in a radial direction of the receiving lens is equal to or greater than a width of the first sub-emission lens in a radial direction of the receiving lens.

In some embodiments, the plurality of sub-emission lenses further comprises a plurality of third sub-emission lenses arranged on two sides of the first sub-emission lens along the circumferential direction of the receiving lens.

In some embodiments, a length of the third sub-emission lens in a circumferential direction of the receiving lens is equal to or greater than a length of the first sub-emission lens in the circumferential direction of the receiving lens.

In some embodiments, the third sub-emission lens extends obliquely in a direction away from the first sub-emission lens toward a side on which the second sub-emission lens is located.

In some embodiments, a side surface of the first and the plurality of third sub-emission lenses remote from the receiving lens is a plane, and a side surface of the first and the plurality of third sub-emission lenses adjacent to the receiving lens is a convex surface.

In some embodiments, a surface of a side of the second sub-transmitting lens remote from the receiving lens is convex.

In some embodiments, the plurality of sub-emission lenses further comprises a plurality of fourth sub-emission lenses arranged between the plurality of third sub-emission lenses and the second sub-emission lenses, and the plurality of fourth sub-emission lenses are respectively positioned at two sides of the second sub-emission lenses along the circumferential direction of the receiving lens.

In some embodiments, a plurality of the fourth sub-emission lenses located on both sides of the second sub-emission lens in the circumferential direction of the receiving lens extend obliquely toward the receiving lens in a direction away from each other.

In some embodiments, the emission lenses are a plurality, the plurality of emission lenses comprises a first emission lens group and a second emission lens group, the first emission lens group and the second emission lens group are symmetrical relative to the receiving lens, an included angle between two adjacent emission lenses of the first emission lens group is alpha, and an included angle between two adjacent emission lenses of the second emission lens group is beta, wherein alpha and beta satisfy that alpha is less than or equal to 30 degrees and less than or equal to 60 degrees, and beta is less than or equal to 30 degrees and less than or equal to 60 degrees.

In some embodiments, a plurality of the sub-receiving lenses are connected end to end in sequence along the circumference of the transmitting lens.

In some embodiments, radially inner end surfaces of the plurality of the sub-receiving lenses are formed to be convex, and radially outer end surfaces of the plurality of the sub-receiving lenses are formed to be planar.

In some embodiments, the receiving lens further comprises a rim structure surrounding the peripheral sides of the plurality of sub-receiving lenses.

In some embodiments, the sub-emitter lens is a condenser collimator lens and the sub-receiver lens is a condenser lens.

In some embodiments, the optical lens group further comprises a connection bracket, and the transmitting lens and the receiving lens are arranged on the connection bracket.

In some embodiments, the connecting bracket comprises two first connecting parts and two second connecting parts, the two first connecting parts are respectively arranged at two ends of the second connecting part, the transmitting lens is arranged at the first connecting part, and the receiving lens is arranged at the second connecting part.

In some embodiments, the connecting bracket is a unitary injection molded piece.

A sensor according to an embodiment of the second aspect of the utility model, comprising an optical lens group according to any of the above embodiments.

In some embodiments, the sensor further comprises a circuit board disposed on one side of the optical lens group, wherein at least one light source is disposed on a side of the circuit board facing the optical lens group, the light source being opposite to the emission lens.

In some embodiments, the sensor further comprises an infrared receiving detector, the infrared receiving detector is arranged on the circuit board, and the infrared receiving detector is opposite to the receiving lens.

In some embodiments, the sensor further comprises a first sunlight detection lens and a second sunlight detection lens, wherein the first sunlight detection lens and the second sunlight detection lens are integrated into a whole.

In some embodiments, the first and second solar detection lenses are spaced apart from the emission lenses of the optical lens group along a circumferential direction of the optical lens group.

In some embodiments, a first infrared detector and a second infrared detector are disposed on the circuit board, the first infrared detector being opposite the first sunlight detection lens, and the second infrared detector being opposite the second sunlight detection lens.

A vehicle according to an embodiment of the third aspect of the utility model comprises a sensor according to any of the above embodiments.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a perspective exploded view of a sensor according to an embodiment of the present utility model.

Fig. 2 is a schematic view of an optical lens assembly according to an embodiment of the present utility model.

Fig. 3 is a schematic view of the optical paths of a transmitting lens and a receiving lens according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of the distribution of a portion of a transmitting lens and a receiving lens according to an embodiment of the present utility model.

Fig. 5 is a schematic diagram of a receiving lens according to an embodiment of the utility model.

Fig. 6 is a schematic view of a first housing according to an embodiment of the present utility model.

Fig. 7 is a schematic view of a second housing according to an embodiment of the present utility model.

Reference numerals:

100. A sensor;

10. Optical lens group, 11, receiving lens, 111, edge structure, 112, sub-receiving lens, 12, transmitting lens, 121, first sub-transmitting lens, 122, second sub-transmitting lens, 123, third sub-transmitting lens, 124, fourth sub-transmitting lens, 125, first transmitting lens group, 126, second transmitting lens group, 131, first sunlight detecting lens, 132, second sunlight detecting lens, 133, first ambient light detecting lens, 134, second ambient light detecting lens, 141, first receiving lens group, 142, second receiving lens group, 143, third receiving lens group, 151, first shell, 152, second shell, 153, clamping piece, 16, optical silica gel piece;

20. a connecting bracket;

30. The infrared detection device comprises a circuit board, a first infrared detection receiver, a second infrared detection receiver, a first ambient light detection receiver, a second ambient light detection receiver, a light source, a second ambient light detection receiver, a 35, a 36 and an infrared receiving detector, wherein the circuit board, the first infrared detection receiver, the 32 and the second infrared detection receiver, the 33 and the first ambient light detection receiver, the 34 and the second ambient light detection receiver are respectively arranged;

40. front windshield.

Detailed Description

Embodiments of the present utility model will be described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and an optical lens group 10 according to an embodiment of the present utility model will be described below with reference to fig. 1 to 7, the optical lens group 10 including a receiving lens 11, at least one transmitting lens 12.

Specifically, as shown in fig. 1 to 2, the receiving lens 11 includes a plurality of sub-receiving lenses 112, the plurality of sub-receiving lenses 112 are distributed along the circumferential direction of the receiving lens 11, the transmitting lens 12 is provided on the outer circumferential side of the receiving lens 11, the transmitting lens 12 includes a plurality of sub-transmitting lenses, and the plurality of sub-transmitting lenses are distributed along the circumferential direction of the receiving lens 11.

In the present embodiment, the optical lens group 10 includes the receiving lens 11 and the transmitting lens 12 as an example of automatic adjustment of the wiper blade by detecting the magnitude of the rain amount. The number of the receiving lenses 11 is one, the number of the emitting lenses 12 is plural, wherein the receiving lenses 11 include a plurality of sub-receiving lenses 112, each of the emitting lenses 12 includes a plurality of sub-emitting lenses, light emitted from the plurality of emitting lenses 12 is received by the same receiving lens 11, the receiving lens 11 may correspond to at least one sub-emitting lens of the plurality of emitting lenses 12, and the plurality of sub-emitting lenses are disposed at intervals along the circumferential direction of the optical lens group 10 at the outer circumferential side of the receiving lens 11. I.e. the receiving lens 11 may receive light rays emitted at different angles from the light source 35. After passing through the sub-emission lens, the light is focused to the detector by the receiving lens 11 after being totally reflected by the front windshield 40, and the rainfall can be obtained according to the light intensity received by the detector, so that the swinging speed of the automatic windshield wiper is controlled.

The emission lens 12 according to the embodiment of the utility model is disposed on the outer peripheral side of the receiving lens 11, and the emission lens 12 includes a plurality of sub-emission lenses, the receiving lens 11 can receive the light emitted by different emission lenses 12, and since the emission lens 12 includes a plurality of sub-emission lenses, the receiving lens 11 includes a plurality of sub-receiving lenses 112, the plurality of sub-receiving lenses 112 can receive the light of the plurality of sub-emission lenses, which can increase the utilization rate of the light by the emission lens 12, increase the area of optical induction, increase the sensitivity of the product with the optical lens group 10, and simultaneously reduce the structure and volume of the optical lens group 10, thereby facilitating the integrated design of the optical lens group 10.

In some embodiments, as shown in FIGS. 2-4, the plurality of sub-emission lenses includes a first sub-emission lens 121 and a second sub-emission lens 122, the first sub-emission lens 121 being located on a side of the second sub-emission lens 122 remote from the receiving lens 11. The emission lenses 12 are plural, the plural emission lenses 12 are arranged at intervals along the circumferential direction of the optical lens group 10 and are opposite, each emission lens 12 includes a first sub-emission lens 121 and a second sub-emission lens 122, and the first sub-emission lens 121 is located at a side of the second sub-emission lens 122 away from the receiving lens 11. The light emitted from the first sub-emission lens 121 and the light emitted from the second sub-emission lens 122 can be received by the corresponding sub-receiving lens 112 of the receiving lens 11. The first and second sub-emission lenses 121 and 122 are disposed at intervals along the first direction a.

Therefore, the first sub-emission lens 121 and the second sub-emission lens 122 are arranged at intervals along the radial direction facing the optical lens group 10 and facing away from the receiving lens 11, so that the sensing area of the receiving lens 11 to the light in the direction facing away from the receiving lens 11, namely, the first direction a, can be increased, the optical lens group 10 can acquire the light in a larger range, and the reliability of the product is ensured.

In some embodiments, as shown in fig. 4, the width of the second sub-emission lens 122 in the radial direction of the receiving lens 11 is equal to or greater than the width of the first sub-emission lens 121 in the radial direction of the receiving lens 11. That is, the width of the second sub-emission lens 122 is equal to or greater than the width of the first sub-emission lens 121 in the first direction a to increase the photosensitive area of the emission lens 12 in the first direction a by increasing the widths of the first sub-emission lens 121 and the second sub-emission lens 122 in the first direction a, so that the sensitivity of the product having the optical lens group 10 is higher.

In some embodiments, as shown in FIG. 4, the plurality of sub-emission lenses 12 further includes a plurality of third sub-emission lenses 123, and the plurality of third sub-emission lenses 123 are disposed on both sides of the first sub-emission lens 121 in the circumferential direction of the receiving lens 11. For example, each emission lens 12 includes two third sub-emission lenses 123, and the two third sub-emission lenses 123 are disposed on both sides of the first sub-emission lens 121 in the circumferential direction of the optical lens group 10, that is, in the second direction B described in fig. 4, which is perpendicular to the first direction a. The light emitting area of the optical lens group 10 in the second direction B is increased by the arrangement of the third sub-emission lens 123, so that the receiving lens 11 on the receiving lens 11 corresponding to the optical lens group can better receive the light emitted by the third sub-emission lens 123, and the photosensitive area of the receiving lens 11 is increased, so that the sensitivity of the windshield wiper is higher, and the safety is improved by timely working.

In some embodiments, as shown in fig. 4, the length of the third sub-emission lens 123 in the circumferential direction of the reception lens 11 is equal to or greater than the length of the first sub-emission lens 121 in the circumferential direction of the reception lens 11. That is, the length of the third sub-emission lens 123 along the second direction B is greater than or equal to the length of the first sub-emission lens 121, and increasing the length of the third sub-emission lens 123 in the second direction B can increase the area of the light emitted by the third sub-emission lens 123, so that the sensing area of the corresponding sub-receiving lens 112 on the receiving lens 11 can be increased, so that the optical lens set 10 can timely identify rainwater on glass, thereby timely making adjustments to ensure the definition of the glass and improving the sensitivity of the automatic windshield wiper.

Further, as shown in fig. 4, the third sub-emission lens 123 extends obliquely toward the side where the second sub-emission lens 122 is located in a direction away from the first sub-emission lens 121. The third sub-emission lens 123 is disposed at an end far from the first sub-emission lens 121 along the second direction B and is inclined toward the second sub-emission lens 122, so that the compactness of connection between the plurality of sub-emission lenses 12 included in the emission lens 12 is improved, the volume of the emission lens 12 is reduced, the integration level of product functions is improved, and the occupation of the internal space of the optical lens assembly 10 is reduced.

In some embodiments, as shown in fig. 2 and 4, the side surfaces of the first and third sub-emission lenses 121 and 123 remote from the receiving lens 11 are planar, the side surfaces of the first and third sub-emission lenses 121 and 123 adjacent to the receiving lens 11 are convex, and the side surfaces of the second sub-emission lens 122 remote from the receiving lens 11 are convex.

That is, the sides of the first and third sub-emission lenses 121 and 123 away from the second sub-emission lens 122 in the first direction a are planar, the side facing the second sub-emission lens 122 is convex, and the side of the second sub-emission lens 122 facing the first sub-emission lens 121 is convex, so that the installation of the first, second and third sub-emission lenses 121, 122 and 123 can be facilitated. The side of the sub-lenses adjacent to each other are formed as convex surfaces and are spaced apart so that the light source 35 can be refracted and diverged to form multiple straight lines toward the glass as it passes over the convex surfaces of the sub-emission lenses.

For example, when the optical lens assembly 10 is used to detect the front windshield 40 of a vehicle, when the front windshield 40 is free of rainwater, the light source 35 changes the direction of the light rays after being refracted by the plurality of sub-emission lenses of the emission lens 12 by emitting pulsed infrared light so that the light rays are incident on the optical silica gel member 16 by being refracted and totally reflected at the exit surfaces of the sub-emission lenses, the optical silica gel member 16 is used to bond the optical lens assembly 10 to the front windshield 40, and due to the difference between the refractive indexes of the front windshield 40 and air, the light rays are totally reflected at the outer and inner surfaces of the glass, and the reflected light rays are directed to the receiving lens 11, so that the adjustment of the windshield wiper can be realized according to the acquired information.

In some embodiments, as shown in FIG. 4, the plurality of sub-emission lenses further includes a plurality of fourth sub-emission lenses 124, the plurality of fourth sub-emission lenses 124 being disposed between the plurality of third sub-emission lenses 123 and the second sub-emission lenses 122, the plurality of fourth sub-emission lenses 124 being located on both sides of the second sub-emission lenses 122, respectively, in the circumferential direction of the receiving lens 11. In the present embodiment, each emission lens 12 includes two fourth sub-emission lenses 124, and the two fourth sub-emission lenses 124 are adapted to both sides of the second sub-emission lens 122 along the second direction B and are disposed at intervals from the second sub-emission lens 122. The two fourth sub-emission lenses 124 are opposite to and spaced apart from the two first sub-emission lenses 121 in the first direction a.

Therefore, the fourth sub-emission lens 124 can increase the divergence capability of the emission lens 12 to the light source 35 in the first direction a and the second direction B, so that the receiving lens 11 receives the total reflection of the light in the maximum range, and the detection capability of the optical lens set 10 to rain water is improved, so that the swinging of the windshield wiper can be controlled better, and the speed and the amplitude of the swinging of the windshield wiper can be adjusted according to the magnitude of the rain water in time.

In some embodiments, as shown in fig. 4, a plurality of fourth sub-emission lenses 124, which are located on both sides of the second sub-emission lens 122 in the circumferential direction of the reception lens 11, respectively, extend obliquely toward the reception lens 11 in a direction away from each other. That is, the end of the fourth sub-emission lens 124, which is far from the second sub-emission lens 122 along the first direction a, is inclined toward the receiving lens 11, so that the divergence of the fourth sub-emission lens 124 to the light source 35 in the second direction B can be increased, so that the receiving lens 11 can accurately receive the light emitted from the emitting lens 12, so that the receiving lens 11 can more comprehensively and efficiently receive the light from the emitting lens 12 and control the wiper operation.

In some embodiments, the plurality of emission lenses 12 is a plurality, the plurality of emission lenses 12 includes a first emission lens group 125 and a second emission lens group 126, the first emission lens group 125 and the second emission lens group 126 are symmetrical with respect to the receiving lens 11, an included angle between two adjacent emission lenses 12 of the first emission lens group 125 is α, and an included angle between two adjacent emission lenses 12 of the second emission lens group 126 is β, wherein α, β satisfies 30+.ltoreq.α.ltoreq.60°, 30+.ltoreq.β.ltoreq.60°.

For example, the first emission lens group 125 and the second emission lens group 126 are opposite in the first direction a and symmetrically distributed with respect to the receiving lens 11. The first emission lens group 125 and the second emission lens group 126 are disposed at intervals along the circumferential direction of the optical lens group 10. The number of emission lenses 12 included in the first emission lens group 125 and the second emission lens group 126 is not particularly limited, and three emission lenses are exemplified as each emission lens 12 group in the present embodiment. The first emission lens group 125 and the second emission lens group 126 include a plurality of emission lenses 12 arranged at intervals along the circumferential direction of the optical lens group 10. For example, the angle between two adjacent emission lenses 12 included in the first emission lens group 125 is 45 °, and the angle between two adjacent emission lenses 12 included in the second emission lens group 126 is 45 °.

Thus, the first emission lens group 125 and the second emission lens group 126 can be arranged so that the optical lens groups 10 are symmetrically distributed, so that the light source 35 can be increased or decreased as required, and the utilization of the light source 35 by the emission lens 12 is increased.

In some embodiments, as shown in fig. 4 and 5, a plurality of sub-receiving lenses 112 are connected end-to-end in sequence along the circumference of the transmitting lens 12. The plurality of sub-receiving lenses 112 are arranged along the circumferential direction of the emission lens 12, that is, the plurality of sub-receiving lenses 112 are sequentially connected along the arrangement direction of the plurality of sub-emission lenses. In this embodiment, the number of sub-receiving lenses 112 is eight, the eight sub-receiving lenses 112 include a first receiving lens group 141 and a second receiving lens group 142 and a third receiving lens group 143, the first receiving lens group 141 and the second receiving lens group 142 are opposite along the first direction a, and the first receiving lens group 141 and the second receiving lens group 142 are symmetrically distributed with respect to the third receiving lens group 143, and the side of the first receiving lens group 141 adjacent to the sub-transmitting lens is the side of the receiving lens 11 away from the first receiving lens group 141, which is the second receiving lens group 142. The light rays emitted by the first transmitting lens group 125 and the second transmitting lens group 126 are respectively received by the first receiving lens group 141 and the second receiving lens group 142 after being refracted and totally reflected by the optical silica gel member 16 and the front windshield 40. The plurality of sub-receiving lenses 112 increase the reception of light in the circumferential direction so as to improve the reliability of the optical lens group 10.

Wherein, since the third sub-emission lens 123 and the fourth sub-emission lens 124 extend along the second direction B, the light emitted by the extending portion can be received by the two receiving lenses 11 of the second receiving lens group 142 along the second direction B, and the second receiving lens group 142 increases the sensing area of the receiving lens 11, thereby improving the capability of detecting rainfall.

In some embodiments, as shown in fig. 2, the radially inner ends of the plurality of sub-receiving lenses 112 are formed as convex surfaces, and the radially outer ends of the plurality of sub-receiving lenses 112 are formed as planar surfaces. That is, the side of the sub-receiving lens 112 facing the far ion emitting lens is formed as a convex surface, the side of the sub-receiving lens 112 facing the sub-emitting lens is formed as a plane for controlling the reflection direction of the light, and the convex surface is provided to facilitate the receiving and collecting of the sub-emitting lens by the sub-receiving lens 112, so that the light can be accurately directed onto the infrared receiving detector 36 for controlling the operation of the wiper for detecting the rainfall.

In some embodiments, as shown in FIG. 4, the receiving lens 11 further includes an edge structure 111, the edge structure 111 being disposed around the outer peripheral sides of the plurality of sub-receiving lenses 112. The edge structure 111 is a ring structure, the edge structure 111 is disposed on the outer peripheral side of the receiving lens 11, the edge structure 111 is connected on the outer peripheral side of the sub-receiving lens 112, and the edge structure 111 can receive the reflected light in a larger range, so as to further increase the photosensitive area. For the second sub-emission lens 122, the light rays are collimated through the sub-receiving lens 112 corresponding thereto after entering the second sub-emission lens 122.

In some embodiments, as shown in fig. 3, the sub-emission lens is a condensing and collimating lens, for the first sub-emission lens 121, after the light emitted by the light source 35 passes through the sub-emission lens, the light is collimated in the sub-emission lens, the collimated light is totally reflected at the exit surface of the emission lens 12, the totally reflected light is parallel to the first direction a, and the totally reflected light passes through the surface of the front windshield 40 and is directed to the receiving lens 11, and because the receiving lens 11 is a condensing lens, the light passing through the receiving lens 11 is converged.

Referring to fig. 5, for the third sub-emission lens 123 and the fourth sub-emission lens 124, the light is collimated after entering the incident surfaces of the third sub-emission lens 123 and the fourth sub-emission lens 124, and is totally reflected at the emergent surfaces of the third sub-emission lens 123 and the fourth sub-emission lens 124, and a part of the light is totally reflected on the front glass 40 after entering the front glass 40 along the first direction a, and enters the corresponding sub-receiving lens 112. The other part of the light rays are directed to the front windshield 40 after being deflected from the first direction A by 0-6 degrees, and are obliquely incident to the first receiving lens group 141 or the second receiving lens group 142 after the front windshield 40 is fully emitted, and specifically can be received by the sub receiving lenses 112 on two sides of the first receiving lens group 141 or the second receiving lens group 142 along the second direction B. Since the sub-emission lens extends in the second direction B, the photosensitive area in the second direction B is increased, and the utilization ratio of the light source 35 is improved.

Optionally, for the two sub-emission lenses opposite along the second direction B, the emitted light is finally received by the third receiving lens group 143 and the sub-receiving lenses 112 on both sides of the first receiving lens group 141 and the second receiving lens group 142 along the second direction B, and the two sub-receiving lenses 112 of the third receiving lens group 143 and the two sub-receiving lenses 112 on both sides of the first receiving lens group 141 and the second receiving lens group 142 along the second direction B reconstruct a new first receiving lens group and a new second receiving lens group distributed opposite along the second direction B, so as to implement the receiving of the light after total reflection of the front windshield 40 emitted by the sub-emission lenses corresponding thereto.

In some embodiments, as shown in FIG. 2, the optical lens assembly 10 further includes a connection bracket 20, and the transmitting lens 12 and the receiving lens 11 are disposed on the connection bracket 20. The connection bracket 20 includes two first connection portions and a second connection portion, the two first connection portions are disposed at two ends of the second connection portion along the first direction a, and the two first connection portions are respectively used for mounting the first emission lens group 125 and the second emission lens group 126. The first connecting portion is arc-shaped. The sub-receiving lens 112 is disposed on the second connection portion. Thereby, the installation of the transmitting lens 12 and the receiving lens 11 is facilitated by the arrangement of the connection bracket 20.

Further, the connection bracket 20 is an integral injection-molded piece. The structural strength of the connection bracket 20 can be ensured by manufacturing the connection bracket 20 through an integral molding process, and the connection bracket 20 can be integrally molded with the emitter lens 12 and the receiver lens 11.

The sensor 100 according to an embodiment of the second aspect of the utility model comprises the optical lens group 10 of any of the above embodiments.

According to the sensor 100 of the embodiment of the utility model, by arranging the optical lens group 10 in the sensor 100, and the optical lens group 10 comprises a plurality of emission lenses 12 and one receiving lens 11, the light rays emitted by a plurality of sub-emission lenses on each emission lens 12 can be received by the same receiving lens 11, so that the receiving lens 11 can fully receive the light rays which are emitted by the sub-emission lenses and are totally reflected by the front windshield 40, and the control of the windshield wiper is realized according to the light rays.

Wherein the sub-emission lenses include a first sub-emission lens 121 and a second sub-emission lens 122 extending in a first direction a, and a third sub-emission lens 123 and a fourth sub-emission lens 124 extending in a second direction B and inclined toward the second sub-emission lens 122, so that the sub-emission lenses can increase the range and angle of emitted light to enable the receiving lens 11 to increase the photosensitive area. Therefore, the plurality of sub-emission lenses share one receiving lens 11, so that the thickness of each sub-emission lens can be reduced, and the space of the all-in-one sensor 100 is fully utilized, thereby realizing richer functional integration.

According to the sensor 100 of the embodiment of the present utility model, by arranging the optical lens group 10, the sensor 100 can detect rainwater on the front windshield 40 in a wider range, and the swing frequency of the windshield wiper can be adjusted, which is beneficial to miniaturization and integration design of the sensor 100.

In some embodiments, as shown in FIGS. 1 and 7, the sensor 100 further comprises a circuit board 30, the circuit board 30 being disposed on a side of the optical lens group 10, at least one light source 35 being disposed on a side of the circuit board 30 facing the optical lens group 10, the light source 35 being opposite the emitter lens 12.

The sensor 100 includes a first housing 151 and a second housing 152, where the first housing 151 and the second housing 152 define a mounting cavity, the circuit board 30 is disposed in the mounting cavity, and a limit slot is disposed in the mounting cavity for fixing the circuit board 30. The clamping member 153 clamps the first and second cases 151 and 152 at the side portions of the first and second cases 151 and 152, and the optical silica gel member 16 is provided at a side of the first and second cases 151 and 152 remote from the clamping member 153 and is connected to the front windshield 40. The transmitting lens 12 and the receiving lens 11 are both disposed on the first housing 151 and disposed toward the second housing 152. The light source 35 is disposed on a side of the circuit board 30 facing the optical lens assembly 10, opposite to the emission lens 12 of the optical lens assembly 10, and light emitted by the light source 35 is refracted by the emission lens 12 and enters the front windshield 40, and is received by the receiving lens 11 after being totally reflected by the front windshield 40. The plurality of light sources 35 are provided at focal positions of the sub-emission lenses corresponding thereto. Thus, the light source 35 is disposed on the side of the circuit board 30 facing the emission lens 12, so that the emission lens 12 can effectively receive the light source 35.

In some embodiments, referring to FIG. 7, sensor 100 further includes an infrared receiver detector 36, infrared receiver detector 36 being disposed on circuit board 30, infrared receiver detector 36 being opposite receiver lens 11. The infrared detector is used for receiving the light emitted by the receiving lens 11, analyzing and processing the light and controlling the adjustment of the windshield wiper through the control system of the vehicle so that the windshield wiper can automatically work. The infrared receiving detector 36 is provided at the focal position of the receiving lens 11 corresponding thereto.

Each sub-emission lens corresponds to one light source 35, the distribution of the light sources 35 on the circuit board 30 corresponds to the sub-emission lenses one by one, the plurality of light sources 35 alternately emit infrared light, the receiving lens 11 continuously receives light from the first emission lens 12 and the second emission lens 12 on both sides of the first direction a, and the light is converged on the infrared receiving detector 36, and when no rainwater is detected, the infrared receiving detector 36 detects an initial light intensity value. When rainwater falls into the area capable of being sensed on the front windshield 40, as the refractive index of water is greater than that of air, the surface of the water drop has a certain radian, the light intensity value after the water drop is refracted can change, and when the detected light intensity value is different from the initial light intensity value, namely, the rainwater is detected, the control system controls the wiper to work. When no water drops are on the front windshield 40, the light intensity value detected by the detector is unchanged and is the same as the initial light intensity value, and the control system controls the windshield wiper to stop working.

For example, when light enters the front windshield 40 through the emission lens 12, the front windshield 40 needs to totally reflect the light to be received by the receiving lens 11, and when the refractive index of the front windshield 40 is 1.53, the refractive index of air is 1, and the refractive index of water drops is 1.33, the critical angle of the light to be totally reflected on the surface of the front windshield 40 is 40.81 °, and the critical angle of the light from the front windshield 40 to the water drops is 60.38 °, so that the effective detection of the water drops by the sensor 100 is facilitated, and the angle of the light deviation by the emission lens 12 in this embodiment is about 45 °. In a practical production process, the angle of deflection of the light rays after exiting the emission lens 12 may be designed to be 45 °.

In some embodiments, as shown in fig. 6, the optical lens group 10 for detecting rainfall adopts a pulse emitting and receiving mode, so that the normal detection of infrared light by the infrared receiving detector 36 is not affected, and therefore, the sensor 100 further comprises a first sunlight detecting lens 131 and a second sunlight detecting lens 132, and the first sunlight detecting lens 131 and the second sunlight detecting lens 132 are integrated into a whole. The first sunlight detecting lens 131 and the second sunlight detecting lens 132 are used for detecting the irradiance value of the infrared light in the left-right direction so as to control the automatic adjustment of the temperature of the air conditioner in the vehicle provided with the double-zone constant temperature air conditioner. Namely, the arrangement of the sunlight detection lenses in different directions can facilitate the detection of the sunlight intensity on the left side and the right side of the front windshield 40 so that the air conditioners corresponding to the different directions can be automatically adjusted, and the comfort is improved.

In some embodiments, as shown in fig. 6, the first and second solar detection lenses 131 and 132 are arranged with the emission lenses 12 of the optical lens group 10 at intervals along the circumferential direction of the optical lens group 10. Therefore, the plurality of lenses are arranged at intervals in the axial direction of the connecting support 20, so that the utilization of the internal space of the sensor 100 is increased, the light source 35 on the circuit board 30 can be directly opposite to the sub-emission lens, the thickness of the sensor 100 is reduced, the structure of the sensor 100 is optimized, and the miniaturization and the integrated design of the sensor 100 are facilitated.

In some embodiments, the circuit board 30 is provided with a first infrared detector 31 and a second infrared detector 32, where the first infrared detector 31 is opposite to the first sunlight detecting lens 131, and the second infrared detector 32 is opposite to the second sunlight detecting lens 132. That is, the intensity of sunlight detected by the first sunlight detecting lens 131 is input into the first infrared detecting receiver 31, the intensity of sunlight detected by the second sunlight detecting lens 132 is input into the second infrared detecting receiver 32, and the first infrared detecting receiver 31 and the second infrared detecting receiver 32 are used for analyzing and processing the acquired intensity of sunlight and transmitting signals to the control system to control the air conditioner to perform corresponding adjustment.

In addition, the sensor 100 further includes a first ambient light detecting lens 133 and a second ambient light detecting lens 134, and the first ambient light detecting lens 133 and the second ambient light detecting lens 134 are used to detect illuminance of ambient light in the front windshield 40 in the front-rear direction of the vehicle, thereby controlling brightness adjustment of lights of the vehicle, a vehicle body screen, and the like. The first and second solar detection lenses 131 and 132 and the optical lens group 10 are made of a black PC material that transmits infrared light. The first and second ambient light detecting lenses 133 and 134 are made of transparent PC material. The other parts of the sensor 100 are made of opaque black materials to ensure that the functions are not disturbed. The first and second ambient light detection lenses 133 and 134 are opposite to the first and second ambient light detection receivers 33 and 34, respectively, for controlling the light of the vehicle.

A vehicle according to an embodiment of the third aspect of the utility model comprises a sensor 100 according to any of the above embodiments.

According to the European vehicle, the optical lens group 10 in the sensor 100 is redesigned to increase the light acquisition capability of the optical lens group 10 in the first direction A and the second direction B, and increase the sensing area of the optical lens group 10, so that more light can be emitted to the front windshield 40 to increase the sensing area, the receiving lens 11 can detect the rainfall in a larger range, the control system of the vehicle can timely adjust the windshield wiper, and the sensitivity and the working efficiency of the windshield wiper are improved. And, the arrangement and integrated into one piece of a plurality of sub-emission lenses and a receiving lens 11 can be convenient for simplify the inside structure of sensor 100 to make sensor 100 can realize the collection to the light at the scope of more interior trim, be favorable to sensor 100's miniaturization and integration design, increase the use experience of vehicle, guarantee driving safety.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (25)

1. An optical lens assembly, comprising:

The receiving lens comprises a plurality of sub receiving lenses, and the plurality of sub receiving lenses are distributed along the circumferential direction of the receiving lens;

And the emission lens is arranged on the outer peripheral side of the receiving lens, and comprises a plurality of sub-emission lenses which are distributed along the circumferential direction of the receiving lens.

2. The optical lens set of claim 1 wherein a plurality of the sub-emitter lenses comprise:

The first sub-emission lens is positioned on one side of the second sub-emission lens, which is far away from the receiving lens.

3. The optical lens group according to claim 2, wherein a width of the second sub-emission lens in a radial direction of the receiving lens is equal to or larger than a width of the first sub-emission lens in a radial direction of the receiving lens.

4. The optical lens set of claim 2 wherein a plurality of the sub-emitter lenses further comprise:

The plurality of third sub-emission lenses are arranged on two sides of the first sub-emission lens along the circumferential direction of the receiving lens.

5. The optical lens group according to claim 4, wherein a length of the third sub-emission lens in a circumferential direction of the receiving lens is equal to or greater than a length of the first sub-emission lens in the circumferential direction of the receiving lens.

6. The optical lens group according to claim 4, wherein the third sub-emission lens extends obliquely toward a side where the second sub-emission lens is located in a direction toward and away from the first sub-emission lens.

7. The optical lens group according to claim 4, wherein a side surface of the first sub-emission lens and the plurality of third sub-emission lenses, which is away from the receiving lens, is a plane, and a side surface of the first sub-emission lens and the plurality of third sub-emission lenses, which is adjacent to the receiving lens, is a convex surface.

8. The optical lens assembly of claim 4, wherein a surface of the second sub-emitter lens distal from the receiver lens is convex.

9. The optical lens assembly of claim 4 wherein a plurality of said sub-emitter lenses further comprise:

The plurality of fourth sub-emission lenses are arranged between the plurality of third sub-emission lenses and the second sub-emission lenses, and the plurality of fourth sub-emission lenses are respectively positioned at two sides of the second sub-emission lenses along the circumferential direction of the receiving lens.

10. The optical lens group according to claim 9, wherein a plurality of the fourth sub-emission lenses located on both sides of the second sub-emission lens in the circumferential direction of the receiving lens extend obliquely toward the receiving lens in a direction away from each other.

11. The optical lens group according to claim 1, wherein the emission lenses are plural, the plural emission lenses include a first emission lens group and a second emission lens group, the first emission lens group and the second emission lens group are symmetrical with respect to the receiving lens, an angle between two adjacent emission lenses of the first emission lens group is α, and an angle between two adjacent emission lenses of the second emission lens group is β, wherein the α, β satisfies 30 ° +.ltoreq.60°,30 ° +.ltoreq.β.ltoreq.60°.

12. The optical lens assembly of claim 1, wherein a plurality of said sub-receiving lenses are connected end-to-end in sequence along a circumference of said transmitting lens.

13. The optical lens assembly of claim 12, wherein radially inner ends of the plurality of sub-receiving lenses are formed as convex surfaces and radially outer ends of the plurality of sub-receiving lenses are formed as planar surfaces.

14. The optical lens set of claim 1 wherein the receiving lens further comprises:

and the edge structure is arranged on the periphery side of the plurality of sub receiving lenses in a surrounding mode.

15. The optical lens assembly of claim 1, wherein the sub-emitter lens is a condenser collimator lens and the sub-receiver lens is a condenser lens.

16. The optical lens assembly of claim 1, further comprising:

the connecting support, the transmitting lens with the receiving lens all is located on the connecting support.

17. The optical lens assembly of claim 16, wherein the connecting bracket comprises two first connecting portions and two second connecting portions, the two first connecting portions being disposed at two ends of the second connecting portion, respectively, the transmitting lens being disposed at the first connecting portion, and the receiving lens being disposed at the second connecting portion.

18. The optical lens assembly of claim 17, wherein the connecting bracket is an integral injection molded piece.

19. A sensor comprising an optical lens set according to any one of claims 1-18.

20. The sensor of claim 19, further comprising:

The circuit board is arranged on one side of the optical lens group, at least one light source is arranged on one side of the circuit board facing the optical lens group, and the light source is opposite to the emission lens.

21. The sensor of claim 20, further comprising:

The infrared receiving detector is arranged on the circuit board and is opposite to the receiving lens.

22. The sensor of claim 20, further comprising:

a first sunlight detection lens;

And the first sunlight detection lens and the second sunlight detection lens are integrally formed.

23. The sensor of claim 22, wherein the first and second solar detection lenses are spaced apart from the emission lenses of the optical lens group along a circumferential direction of the optical lens group.

24. The sensor of claim 23, wherein the circuit board is provided with a first infrared detector and a second infrared detector, the first infrared detector being opposite the first sunlight detection lens, and the second infrared detector being opposite the second sunlight detection lens.

25. A vehicle comprising a sensor according to any one of claims 19-24.