CN116744098A - Double-lens vehicle-mounted optical system and camera module applying same - Google Patents

Abstract

The application provides a double-lens vehicle-mounted optical system and an imaging module applied to the same, a wider visual angle can be provided by arranging a second optical system and a first optical system which form an included angle with each other, light emitted from the second optical system and the first optical system can be received simultaneously through a photosensitive chip and corresponding electric signals are generated by induction, road conditions with different visual angles can be imaged in different photosensitive areas of the same photosensitive chip at different distances, the purposes of reducing the volume and the blind area of the visual field are achieved, and the scheme can strengthen the monitoring of the conditions behind, on the side and below the vehicle, greatly eliminate the blind area of the visual field, improve the driving safety, can be applied to lighter, thinner or miniaturized equipment, has simple structure and reasonable layout, and has good application prospect.

Description

Double-lens vehicle-mounted optical system and camera module applying same

Technical Field

The application relates to the field of lens equipment, in particular to a double-lens vehicle-mounted optical system and an imaging module applied to the double-lens vehicle-mounted optical system.

Background

The traditional automobile exterior rearview mirror has the problems that the visual field blind area, the image is unclear and the like can appear when a driver looks due to the influences of the reflection angle, the display area and the bad working condition of a lens, and the driving safety is influenced. With the development of automobile technology, electronic rear-view mirrors are emerging to replace conventional rear-view mirrors. Compared with the traditional rearview mirror, the electronic rearview mirror has smaller volume, can reduce wind resistance and reduce energy consumption; by adopting the wide-angle camera, the blind area of the visual field can be reduced; through outstanding sensor and optical lens, can provide more clear and effective field of vision for the driver under the abominable operating mode such as night, sleet. However, the conventional electronic rearview mirror generally uses an optical lens to match with a chip for imaging, so that a large vehicle with more blind areas of the visual field like a truck needs to use a plurality of electronic rearview mirrors to obtain more visual fields, and thus, the imaging module has a larger volume and a complex structure and cannot be applied to lighter, thinner or miniaturized equipment, and meanwhile, the cost is increased.

Disclosure of Invention

In order to solve the technical problems of visual field blind area and bigger volume of the existing truck, the application discloses a double-lens vehicle-mounted optical system which can provide wider visual angle and save volume, strengthen the monitoring of the conditions of the rear, side and side lower parts of the vehicle, greatly eliminate the visual field blind area, improve the driving safety and can be applied to lighter, thinner or miniaturized equipment.

The double-lens vehicle-mounted optical system at least comprises a second optical system and a first optical system, wherein optical axes of the second optical system and the first optical system form an included angle, and a photosensitive chip for respectively receiving light emitted from the second optical system and the first optical system and generating corresponding electric signals in an induction mode.

In the dual-lens vehicle-mounted optical system, the first optical system is obliquely arranged relative to the photosensitive chip, and a reflecting mirror for reflecting light emitted from the first optical system to the photosensitive chip is arranged on a light emitting path of the first optical system.

In the dual-lens vehicle-mounted optical system, the reflecting mirror is obliquely arranged between the first optical system and the photosensitive chip and is positioned close to the second optical system, and the reflecting mirror is gradually inclined from the first optical system to the photosensitive chip towards the second optical system.

The double-lens vehicle-mounted optical system is characterized in that the second optical system is perpendicular to the photosensitive chip, and the second optical system can be directly imaged on the photosensitive chip.

The dual-lens vehicle-mounted optical system as described above, the first optical system includes, in order from an object plane to an image plane along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens;

the object plane side of the first lens is a convex surface, and the image plane side is a concave surface;

the object plane side of the second lens is a convex surface, and the image plane side is a concave surface;

the object plane side of the third lens is a convex surface, and the image plane side is a concave surface;

the object plane side of the fourth lens is a convex surface, and the image plane side is a convex surface;

the object plane side of the fifth lens is a convex surface, and the image plane side is a convex surface;

the object plane side of the sixth lens is a concave surface, and the image plane side is a convex surface;

the fifth lens and the sixth lens are bonded to each other to form a first cemented lens.

The dual-lens vehicle-mounted optical system as described above, the second optical system includes, in order from the object plane to the image plane along the optical axis: 1 st lens, 2 nd lens, 3 rd lens, 4 th lens, 5 th lens, and 6 th lens;

the object plane side of the 1 st lens is a plane, and the image plane side is a concave surface;

the object plane side of the 2 nd lens is a concave surface, and the image plane side is a concave surface;

the object plane side of the 3 rd lens is a convex surface, and the image plane side is a convex surface;

the object plane side of the 4 th lens is a convex surface, and the image plane side is a convex surface;

the object plane side of the 5 th lens is a concave surface, and the image plane side is a convex surface;

the object plane side of the 6 th lens is a convex surface, and the image plane side is a convex surface;

the 4 th lens and the 5 th lens are combined and adhered to each other to form a second cemented lens.

The dual-lens vehicle-mounted optical system is characterized in that the first optical system is a tele optical system, and the second optical system is a wide-angle optical system.

According to the dual-lens vehicle-mounted optical system, the included angle between the optical axis of the second optical system and the optical axis of the first optical system is 30-70 degrees.

In the dual-lens vehicle-mounted optical system, the second photosensitive area for receiving the light emitted from the second optical system and the first photosensitive area for receiving the light emitted from the first optical system are adjacently arranged on the photosensitive chip.

The double-lens vehicle-mounted optical system further comprises a base body, wherein a containing cavity for containing the photosensitive chip is formed in the rear side of the base body, a second assembling groove for installing a second optical system and a first assembling groove for installing a first optical system are formed in the front side of the base body, and the second assembling groove and the first assembling groove form an included angle and are respectively communicated with the containing cavity;

the first assembly groove is communicated with the accommodating cavity through a first light passage, a mirror groove used for accommodating the reflecting mirror is formed in a path of light emergent from the first optical system on the inner wall of the first light passage, and the second assembly groove is communicated with the accommodating cavity through a second light passage.

The application also provides an image pickup module, which at least comprises an optical lens, wherein the double-lens vehicle-mounted optical system is arranged in the optical lens.

Compared with the prior art, the application has the following beneficial effects:

the application provides a double-lens vehicle-mounted optical system and an imaging module applied to the same, a wider visual angle can be provided by arranging a second optical system and a first optical system which form an included angle with each other, light emitted from the second optical system and the first optical system can be received simultaneously through a photosensitive chip and corresponding electric signals are generated by induction, road conditions with different visual angles can be imaged in different photosensitive areas of the same photosensitive chip at different distances, the purposes of reducing the volume and the blind area of the visual field are achieved, and the scheme can strengthen the monitoring of the conditions behind, on the side and below the vehicle, greatly eliminate the blind area of the visual field, improve the driving safety, can be applied to lighter, thinner or miniaturized equipment, has simple structure and reasonable layout, and has good application prospect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of a dual-lens vehicle-mounted optical system or an image pickup module according to an embodiment of the present application;

FIG. 2 is a schematic diagram showing the structure of a first optical system according to an embodiment of the present application;

FIG. 3 shows a graph of curvature of field and distortion of a first optical system in accordance with an embodiment of the present application;

FIG. 4 shows a graph of MTF for a first optical system in accordance with an embodiment of the present application;

FIG. 5 is a schematic diagram showing the structure of a second optical system according to an embodiment of the present application;

FIG. 6 shows a graph of field curvature and distortion of a second optical system in accordance with an embodiment of the present application;

fig. 7 shows an MTF graph of a second optical system of an embodiment of the present application.

FIG. 8 is a schematic diagram of a camera module according to an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of an image capturing module according to an embodiment of the present application;

FIG. 10 is a schematic view of a base in an embodiment of the present application;

FIG. 11 is a schematic cross-sectional view of a base in an embodiment of the application;

FIG. 12 is a schematic cross-sectional view of a camera module according to another embodiment of the present application;

FIG. 13 is a schematic view of a base in another embodiment of the present application;

FIG. 14 is a schematic cross-sectional view of a base in another embodiment of the application;

FIG. 15 is an exploded view of an imaging module according to an embodiment of the present application;

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the application more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

When embodiments of the present application refer to the ordinal terms "first," "second," etc., it is to be understood that they are merely used for distinguishing between them unless the order of their presentation is indeed dependent on the context.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-15, a dual-lens vehicle-mounted optical system at least includes a first optical system 1 and a second optical system 2 with optical axes forming an included angle with each other, and a photosensitive chip 3 for receiving light emitted from the first optical system 1 and the second optical system 2 respectively and sensing corresponding electric signals, the second optical system and the first optical system forming an included angle with each other can provide a wider view angle, and the photosensitive chip can simultaneously receive light emitted from the second optical system and the first optical system and sensing corresponding electric signals, so that road conditions with different distances and different view angles can be imaged in different light sensing areas of the same photosensitive chip, thereby achieving the purposes of reducing the volume and the blind area of the field of view.

Preferably, the first optical system 1 is obliquely arranged relative to the photosensitive chip 3, and a reflecting mirror 4 for reflecting the light emitted from the first optical system 1 to the photosensitive chip 3 is arranged on the light emitting path of the first optical system 1.

Preferably, the reflecting mirror 4 is obliquely disposed between the first optical system 1 and the photosensitive chip 3 and is located near the second optical system 2, and the reflecting mirror 4 is gradually inclined from the first optical system 1 to the photosensitive chip 3 toward the second optical system 2, so that the light emitted from the first optical system can be reflected onto the photosensitive chip by the obliquely disposed reflecting mirror.

Preferably, the second optical system 2 is perpendicular to the photosensitive chip 3, the second optical system 2 can be directly imaged on the photosensitive chip 3, the second optical system 2 of the application can directly image a shot image on the photosensitive chip, the optical axis of emergent light can be ensured to vertically enter the photosensitive chip, a wider visual angle is provided by utilizing the dual optical system, the monitoring on the conditions of the rear, the side and the side lower of the vehicle is enhanced, and the driving safety is improved.

As shown in fig. 2, the first optical system 1 includes, in order from an object plane to an image plane along an optical axis: a first lens 11, a second lens 12, a third lens 13, a fourth lens 14, a fifth lens 15, and a sixth lens 16;

the object plane side of the first lens 11 is a convex surface, and the image plane side is a concave surface;

the object plane side of the second lens 12 is a convex surface, and the image plane side is a concave surface;

the object plane side of the third lens 13 is a convex surface, and the image plane side is a concave surface;

the fourth lens element 14 has a convex object-side surface and a convex image-side surface;

the object plane side of the fifth lens 15 is a convex surface, and the image plane side is a convex surface;

the object plane side of the sixth lens 16 is a concave surface, and the image plane side is a convex surface;

the fifth lens 15 and the sixth lens 16 are combined and bonded to each other to form a first cemented lens.

Specifically, as a preferred embodiment of the present application, but not limited thereto, in this example, the basic parameters of the first optical system may be as shown in table 1 below;

table 1: basic parameters of the optical system are as follows:

surface of the body	Radius of curvature R (mm)	Thickness D (mm)	Refractive index Nd	Dispersion value Vd
					S1	13.10	1.50	1.76	52.3
S2	6.50	2.75
					S3	21.90	1.00	1.61	60.6
S4	6.84	12.95
					S5	19.80	2.77	1.91	35.3
S6	9.73	2.50
					STO	Infinity	0.80
S7	11.60	5.50	1.65	33.8
					S8	-15.20	2.60
S9	20.00	4.40	1.57	71.3
					S10	-6.60	0.78	1.92	18.90
S11	-13.60	13.30
					S12	INFINITY	0.80	1.52	64.2
S13	INFINITY	0.15
					S14	INFINITY	-

In the table, S1 and S2 are two surfaces of the first lens correspondingly from the object plane to the image plane along the optical axis; s3 and S4 are correspondingly two surfaces of the second lens; s5 and S6 are correspondingly two surfaces of the third lens; STO corresponds to the position of the aperture stop of the optical system; s7 and S8 are correspondingly two surfaces of the fourth lens; s9 and S10 are correspondingly two surfaces of the fifth lens; s10, S11 correspond to two surfaces of the sixth lens; s12 and S13 correspond to two surfaces of the infrared cut filter 27 and/or the cover glass; s14 corresponds to a Sensor imaging surface.

As can be seen from fig. 3 and 4, the first optical system 1 according to the embodiment can achieve good imaging quality with good imaging quality.

As shown in fig. 5, the second optical system 2 includes, in order from an object plane to an image plane along an optical axis: 1 st lens 21, 2 nd lens 22, 3 rd lens 23, 4 th lens 24, 5 th lens 25, and 6 th lens 26;

the object plane side of the 1 st lens 21 is a plane, and the image plane side is a concave surface;

the object plane side of the 2 nd lens 22 is a concave surface, and the image plane side is a concave surface;

the 3 rd lens 23 has a convex object plane side and a convex image plane side;

the object plane side of the 4 th lens 24 is a convex surface, and the image plane side is a convex surface;

the 5 th lens 25 has a concave object plane side and a convex image plane side;

the object plane side of the 6 th lens 26 is a convex surface, and the image plane side is a convex surface;

the 4 th lens 24 and the 5 th lens 25 are combined and adhered to each other to form a second cemented lens.

Specifically, as a preferred embodiment of the present application, not limited thereto, in this example, the basic parameters of the second optical system may be as shown in table 2 below;

table 2: basic parameters of the second optical system:

in the table, E1 and E2 correspond to two surfaces of the 1 st lens from the object plane to the image plane along the optical axis; e3 and E4 correspond to two surfaces of the 2 nd lens; e5 and E6 correspond to two surfaces of the 3 rd lens; ETO corresponds to the position of the aperture diaphragm of the optical system; e7 and E8 correspond to the two surfaces of the 4 th lens; e8 and E9 correspond to the two surfaces of the 5 th lens; e10 E11 corresponds to the two surfaces of the 6 th lens; e12 and E13 are respectively two surfaces of the infrared cut filter 27 and/or the cover glass; e14 corresponds to the Sensor imaging plane.

As can be seen from fig. 6 and 7, the second optical system 2 according to the embodiment can achieve good imaging quality with good imaging quality.

Preferably, the first optical system 1 is a tele optical system, the second optical system 2 is a wide-angle optical system, as shown in fig. 1, which is a schematic structural diagram of an exterior rearview mirror of an automobile, at this time, the first optical system 1 shoots towards the tail of the automobile, and the second optical system 2 shoots towards the side lower part, so that the monitoring on the conditions of the rear part, the side part and the side lower part of the automobile can be enhanced, the blind area of the field of view is greatly eliminated, the driving safety is improved, and the wide-angle optical system can be applied to lighter, thinner or miniaturized equipment, and has simple structure, reasonable layout and good application prospect.

Preferably, the included angle between the optical axis of the second optical system 2 and the optical axis of the first optical system 1 is 30-70 degrees, more preferably 45-60 degrees, and the range can provide a wider viewing angle, is beneficial to the installation of the reflectors, can enhance the monitoring of the conditions of the rear, side and side lower parts of the vehicle, greatly eliminates the blind area of the field of view, improves the driving safety, can be applied to lighter, thinner or miniaturized equipment, has a simple structure and reasonable layout, and has good application prospect.

Preferably, the second photosensitive area 31 for receiving the light emitted from the second optical system 2 and the first photosensitive area 32 for receiving the light emitted from the first optical system 1 are adjacently disposed on the photosensitive chip 3, more preferably, the second photosensitive area 31 is disposed adjacent to the first photosensitive area 32, the photosensitive chip is a CMOS image sensor or a CCD image sensor, and by disposing two photosensitive areas on the photosensitive chip, high-definition two-dimensional image signals can be acquired respectively, so that the generation of high-definition images by software in the later stage is prepared.

Preferably, the optical system further includes a base body 5, a receiving cavity 50 for receiving the photosensitive chip 3 is disposed at the rear side of the base body 5, a second mounting groove 54 for mounting the second optical system 2 and a first mounting groove 55 for mounting the first optical system 1 are disposed at the front side of the base body 5, the second mounting groove 54 and the first mounting groove 55 form an included angle with each other and are respectively communicated with the receiving cavity 50, and a second mounting groove for mounting the second optical system and a first mounting groove for mounting the first optical system are disposed at the front side of the base body, and are respectively communicated with the receiving cavity for receiving the photosensitive chip at the rear side of the base body, so that the second optical system and the first optical system disposed at the included angle can provide a wider viewing angle, and the photosensitive chip in the base body can simultaneously receive light from the second optical system and the first optical system and generate corresponding electric signals through sensing, thereby realizing a compact structure, saving size, light and light, and thin, light, and compact application, and reasonable application, and good prospect.

Preferably, the first assembly groove 55 is communicated with the accommodating cavity 50 through a first light passage 57, and the first optical system 1 is obliquely arranged relative to the photosensitive chip 3 when being arranged in the first assembly groove 55, a mirror groove 58 for placing the reflecting mirror 4 is arranged on a path of light emergent from the first optical system 1 on the inner wall of the first light passage 57, the light emergent from the first optical system 1 can be reflected to the photosensitive chip 3 through the reflecting mirror 4, and in order to enable two optical systems forming an included angle with each other to simultaneously emit light onto the photosensitive chip, the mirror groove 58 for placing the reflecting mirror 4 is arranged on the path of light emergent from the first optical system 1, the emergent light is reflected to an imaging surface through the reflecting mirror, and the two optical systems can be simultaneously observed by using the reflection principle of the light, so that the imaging in a larger range towards the tail and the lower side of the automobile can be realized through the two optical systems, and a sufficiently large viewing field can be ensured.

Preferably, the mirror groove 58 is disposed near the second mounting groove 54, and is inclined gradually from front to back toward the direction near the second mounting groove 54, and the reflecting mirror 4 is disposed in the mirror groove 58 between the first optical system 1 and the photosensitive chip 3, and is disposed near the second optical system 2.

Preferably, when the second optical system 2 is installed in the second assembly groove 54, the second assembly groove 54 is vertically disposed relative to the photosensitive chip 3, the second assembly groove 54 is communicated with the accommodating cavity 50 through the second channel 56, light emitted from the second optical system 2 passes through the second channel 56 to the photosensitive chip 3, the photosensitive chip 3 is located on a path of light emitted from the second optical system 2, the second optical system 2 is vertically disposed relative to the photosensitive chip 3, and the second optical system 2 of the present application can directly image a captured image on the photosensitive chip, so that an optical axis of emitted light vertically enters the photosensitive chip, a wider viewing angle is provided by using the dual optical system, monitoring of conditions behind, beside and below a vehicle is enhanced, and driving safety is improved.

As shown in fig. 9-11, as a first embodiment of the present application, the second channel 56 is a cylindrical through slot, which reduces the processing difficulty and makes the structure more compact.

As shown in fig. 12-14, as a second embodiment of the present application, the aperture of the second channel 56 gradually decreases from front to back, and this design aims to yield the mirror groove 58, so that the structure is more compact.

Preferably, the bottom of the second assembly groove 54 is provided with a tapered chamfer 541 near the mirror groove 58, so that the bottom of the second assembly groove 54 is provided with a tapered structure to ensure the thickness between the bottom of the second assembly groove 54 and the mirror groove 58, which can strengthen the structure.

Further preferably, the second channel 56 is provided with an arc-shaped meat escape groove 561 with a narrow front and a wide rear on the periphery far away from the side of the mirror groove 58, and in order to ensure the light-passing aperture of the lens and the processing workability of the process, the meat escape groove is designed, and the design is more reasonable with the same angle as the mirror.

Further, as shown in fig. 8, the structure of the rear view mirror installed on the outer side of the automobile in the width direction of the automobile is schematically shown, at this time, the first optical system 1 shoots towards the tail of the automobile, the second optical system 2 shoots towards the side lower part, the monitoring on the rear, side and side lower part of the automobile can be enhanced, the blind area of the view is eliminated greatly, the driving safety is improved, and the rear view mirror can be applied to lighter, thinner or miniaturized equipment, and has the advantages of simple structure, reasonable layout and good application prospect.

Preferably, the included angle between the second assembly groove 54 and the first assembly groove 55 is 30 ° to 70 ° and more preferably 45 ° to 60 °, which can provide a wider viewing angle, and is beneficial to the installation of the reflector, so that the monitoring on the conditions of the rear, side and side below of the vehicle can be enhanced, the blind area of the view can be greatly eliminated, the driving safety can be improved, and the device can be applied to lighter, thinner or miniaturized devices, and has simple structure, reasonable layout and good application prospect.

Preferably, the light sensing chip 3 is provided with a first light sensing area 31 for receiving the light emitted from the second optical system 2 and a second light sensing area 32 for receiving the light emitted from the first optical system 1, more preferably, the first light sensing area 31 is disposed adjacent to the second light sensing area 32, the light sensing chip is a CMOS image sensor or a CCD image sensor, and by disposing two light sensing areas on the light sensing chip, high-definition two-dimensional image signals can be acquired respectively, so that the generation of high-definition images by software in the later stage is prepared.

Preferably, the base body 5 includes a support portion 51 having a rear end opening, and a second lens barrel portion 52 and a first lens barrel portion 53 disposed at a front side of the support portion 51, the rear end of the support portion 51 is connected with a substrate 6 for loading the photosensitive chip 3, the accommodating cavity 50 is formed between the substrate 6 and the support portion 51, the second assembly groove 54 and the first assembly groove 55 are respectively disposed in the second lens barrel portion 52 and the first lens barrel portion 53, an input end of the substrate 6 is electrically connected with the photosensitive chip 3 for transmitting an electrical signal generated when the photosensitive chip 3 works, and the substrate 6 is bonded with the rear end of the support portion 51, the second lens barrel portion 52 and the second optical system 2, and the first lens barrel portion 53 and the first optical system 1 through glue.

The camera module at least comprises an optical lens, wherein the dual-lens vehicle-mounted optical system is arranged in the optical lens, and the camera module consists of a long-focus optical system and a wide-angle optical system. The long-focus optical system and the photosensitive chip form a certain included angle, the wide-angle optical system is perpendicular to the photosensitive chip, and the long-focus optical system and the wide-angle optical system are imaged in different photosensitive areas of the same photosensitive chip, so that the purposes of reducing the volume of an imaging module and reducing the cost can be achieved.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims (10)

1. The double-lens vehicle-mounted optical system is characterized by comprising at least a first optical system (1) and a second optical system (2) with optical axes forming an included angle with each other, and a photosensitive chip (3) for respectively receiving light emitted from the first optical system (1) and the second optical system (2) and inducing corresponding electric signals;

the second optical system (2) is perpendicular to the photosensitive chip (3), and the second optical system (2) can be directly imaged on the photosensitive chip (3);

the first optical system (1) is obliquely arranged relative to the photosensitive chip (3), and a reflecting mirror (4) for reflecting light emitted from the first optical system (1) to the photosensitive chip (3) is arranged on a light emitting path of the first optical system (1).

2. The dual-lens on-board optical system according to claim 1, wherein: the reflecting mirror (4) is obliquely arranged between the first optical system (1) and the photosensitive chip (3) and is positioned at the side close to the second optical system (2).

3. The dual-lens on-vehicle optical system according to claim 2, wherein: the reflecting mirror (4) is gradually inclined from the first optical system (1) to the direction of the photosensitive chip (3) to the direction of the second optical system (2).

4. The dual-lens on-board optical system according to claim 1, wherein: the first optical system (1) is a tele optical system, and the second optical system (2) is a wide-angle optical system.

5. The dual-lens on-board optical system according to claim 1, wherein: the first optical system (1) sequentially comprises, along an optical axis from an object plane to an image plane: a first lens (11), a second lens (12), a third lens (13), a fourth lens (14), a fifth lens (15), and a sixth lens (16);

the object plane side of the first lens (11) is a convex surface, and the image plane side is a concave surface;

the object plane side of the second lens (12) is a convex surface, and the image plane side is a concave surface;

the object plane side of the third lens (13) is a convex surface, and the image plane side is a concave surface;

the object plane side of the fourth lens (14) is a convex surface, and the image plane side is a convex surface;

the object plane side of the fifth lens (15) is a convex surface, and the image plane side is a convex surface;

the object plane side of the sixth lens (16) is a concave surface, and the image plane side is a convex surface;

the fifth lens (15) and the sixth lens (16) are combined and adhered to each other to form a first cemented lens.

6. The dual-lens on-board optical system according to claim 1, wherein: the second optical system (2) sequentially comprises, along an optical axis from an object plane to an image plane: 1 st lens (21), 2 nd lens (22), 3 rd lens (23), 4 th lens (24), 5 th lens (25), and 6 th lens (26);

the object plane side of the 1 st lens (21) is a plane, and the image plane side is a concave surface;

the object plane side of the 2 nd lens (22) is a concave surface, and the image plane side is a concave surface;

the object plane side of the 3 rd lens (23) is a convex surface, and the image plane side is a convex surface;

the object plane side of the 4 th lens (24) is a convex surface, and the image plane side is a convex surface;

the object plane side of the 5 th lens (25) is a concave surface, and the image plane side is a convex surface;

the object plane side of the 6 th lens (26) is a convex surface, and the image plane side is a convex surface;

the 4 th lens (24) and the 5 th lens (25) are combined and adhered to each other to form a second cemented lens.

7. A dual-lens vehicle-mounted optical system according to any one of claims 1 to 6, wherein: the included angle between the optical axis of the second optical system (2) and the optical axis of the first optical system (1) is 30-70 degrees.

8. A dual-lens vehicle-mounted optical system according to any one of claims 1 to 6, wherein: a second photosensitive area (31) for receiving the light emitted from the second optical system (2) and a first photosensitive area (32) for receiving the light emitted from the first optical system (1) are adjacently arranged on the photosensitive chip (3).

9. A dual-lens vehicle-mounted optical system according to any one of claims 1 to 6, wherein: the double-lens vehicle-mounted optical system further comprises a base body (5), a containing cavity (50) for containing the photosensitive chip (3) is formed in the rear side of the base body (5), a second assembling groove (54) for installing a second optical system (2) and a first assembling groove (55) for installing a first optical system (1) are formed in the front side of the base body (5), and the second assembling groove (54) and the first assembling groove (55) form an included angle and are respectively communicated with the containing cavity (50);

the first assembly groove (55) is communicated with the accommodating cavity (50) through a first light passage (57), a mirror groove (58) used for accommodating the reflecting mirror (4) is formed in a path of light emergence of the first optical system (1) on the inner wall of the first light passage (57), and the second assembly groove (54) is communicated with the accommodating cavity (50) through a second light passage (56).

10. An imaging module comprising at least an optical lens, wherein the dual-lens vehicle-mounted optical system according to any one of claims 1 to 9 is installed in the optical lens.