Large-target-surface vehicle-mounted ADAS lens and image pickup device

A technology with a large target surface and lens, applied in the optical field, can solve the problems of low imaging quality and increase the imaging quality of a large target surface vehicle ADAS lens.

Active Publication Date: 2021-09-10
JIAXING ZHONGRUN OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention will solve the existing technical problems and provide a vehicle-mounted ADAS le

Method used

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  • Large-target-surface vehicle-mounted ADAS lens and image pickup device
  • Large-target-surface vehicle-mounted ADAS lens and image pickup device
  • Large-target-surface vehicle-mounted ADAS lens and image pickup device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A vehicle-mounted ADAS lens with a large target surface, the vehicle-mounted ADAS lens with a large target surface sequentially includes a first lens L1 group G1 with negative refractive power and a second lens L2 group G2 with positive refractive power from the object plane side to the image plane side;

[0038] The first lens L1 group G1 is composed of a first lens L1 with negative refractive power, a second lens L2 with negative refractive power and a third lens L3 with positive refractive power;

[0039] The second lens L2 group G2 consists of a third lens L3 of positive power, a fourth lens L4 of positive power, a fifth lens L5 of negative power, a sixth lens L6 of positive power, and the fourth lens L4 It is cemented with the fifth lens L5.

[0040] The vehicle-mounted ADAS lens with a large target surface satisfies the following conditional formula:

[0041] 6.5

[0042] Wherein, TTL is the total optical length of the vehicle-mounted ADAS lens with l...

Embodiment 2

[0069] A vehicle-mounted ADAS lens with a large target surface. The vehicle-mounted ADAS lens with a large target surface sequentially includes a first lens L1 group G1 with negative refractive power, an aperture STO, and a second lens L2 group with positive refractive power from the object plane side to the image plane side. G2 and auxiliary component G3.

[0070] The first lens L1 group G1 is composed of a first lens L1 of negative refractive power, a second lens L2 of negative refractive power, and a third lens L3 of positive refractive power.

[0071] The second lens L2 group G2 consists of the third lens L3 of positive refractive power, the fourth lens L4 of positive refractive power, the fifth lens L5 of negative refractive power and the sixth lens L6 of positive refractive power, the fourth lens L4 and the sixth lens L4 of positive refractive power. Penta-lens L5 cemented.

[0072] Auxiliary component G3 consists of filter FI and protective glass CG.

[0073] Table 1 ...

Embodiment 3

[0088] A vehicle-mounted ADAS lens with a large target surface. The vehicle-mounted ADAS lens with a large target surface sequentially includes a first lens L1 group G1 with negative refractive power, an aperture STO, and a second lens L2 group with positive refractive power from the object plane side to the image plane side. G2 and auxiliary component G3.

[0089] The first lens L1 group G1 is composed of a first lens L1 of negative refractive power, a second lens L2 of negative refractive power, and a third lens L3 of positive refractive power.

[0090] The second lens L2 group G2 consists of the third lens L3 of positive refractive power, the fourth lens L4 of positive refractive power, the fifth lens L5 of negative refractive power and the sixth lens L6 of positive refractive power, the fourth lens L4 and the sixth lens L4 of positive refractive power. Penta-lens L5 cemented.

[0091] Auxiliary component G3 consists of filter FI and protective glass CG.

[0092] Table 2 ...

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PUM

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Abstract

The invention relates to the field of optics, in particular to a large-target-surface vehicle-mounted ADAS lens and an image pickup device. The large-target-surface vehicle-mounted ADAS lens sequentially comprises a first lens group with negative focal power and a second lens group with positive focal power from an object plane side to an image plane side; the first lens group is composed of a first lens with negative focal power, a second lens with negative focal power and a third lens with positive focal power; the second lens group is formed by gluing a third lens with positive focal power, a fourth lens with positive focal power, a fifth lens with negative focal power and a sixth lens with positive focal power; the fourth lens and the fifth lens are glued; the large-target-surface vehicle-mounted ADAS lens satisfies the following conditional expression: TTL/F is more than 6.5 and less than 7.5. The possibility that the imaging quality is low due to the fact that the size of the large-target-surface vehicle-mounted ADAS lens is too small is reduced, and the imaging quality of the large-target-surface vehicle-mounted ADAS lens is improved.

Description

technical field [0001] The invention relates to the field of optics, in particular to a vehicle-mounted ADAS lens with a large target surface and an image pickup device. Background technique [0002] In recent years, the field of autonomous driving has developed rapidly at home and abroad. As a key part of the field of autonomous driving, the ADAS advanced driving assistance system has also been favored by the market; the vehicle-mounted ADAS lens is an important component for the entire auxiliary driving system to obtain external information, and its optical performance is extremely high. important. [0003] The existing common vehicle lenses are generally suitable for sensors with small target surfaces, and the FNO of the lens itself is relatively large, and more plastic lenses are used, so the transmittance of the overall lens is low, which seriously affects the ADAS system in low-light environments. Judging and analyzing the surrounding road conditions has certain poten...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0015G02B13/0045G02B13/006G02B13/06
Inventor 王志超厉冰川
Owner JIAXING ZHONGRUN OPTICAL TECH
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