A large aperture vehicle lens and image pickup device

A lens and aperture technology, applied in the field of optics, can solve the problems of increased lens volume and cost, increased lens diameter, and dark shooting pictures, etc., and achieve the effect of miniaturization, reduced head size, and clear images

Active Publication Date: 2022-06-03
JIAXING ZHONGRUN OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The vehicle-mounted lens used in the prior art has dark images, large noise, and low recognition in extremely dark environments, which cannot meet the needs of the market; and to meet clear imaging in extremely dark environments, the lens needs to have a large aperture and higher pixels, resulting in an increase in the number of lens lenses and lens diameter, and the increase in lens size and cost

Method used

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  • A large aperture vehicle lens and image pickup device
  • A large aperture vehicle lens and image pickup device
  • A large aperture vehicle lens and image pickup device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A large-aperture vehicle-mounted lens, the large-aperture vehicle-mounted lens is composed of nine lenses, and the large-aperture vehicle-mounted lens sequentially includes:

[0042] The first lens L1 with negative power, the second lens L2 with negative power, the third lens L3 with positive power, the fourth lens L4 with positive power, the fifth lens L5 with negative power, the positive power The sixth lens L6 with a negative refractive power, the seventh lens L7 with a negative refractive power, the eighth lens L8 with a positive refractive power, and the ninth lens L9 with a negative refractive power; the fourth lens L4 and the fifth lens L5 are cemented .

[0043] The large aperture vehicle lens satisfies the following conditional formula:

[0044] FNO<1.3;

[0045] Wherein, FNO is the relative aperture of the large aperture vehicle lens.

[0046] In this embodiment, the configuration of the above structure ensures the reliable imaging of the large-aperture vehic...

Embodiment 2

[0081] A large-aperture vehicle-mounted lens, the large-aperture vehicle-mounted lens is composed of nine lenses, and the large-aperture vehicle-mounted lens includes in sequence from the object plane side to the image plane side:

[0082] The first lens L1 with negative power, the second lens L2 with negative power, the third lens L3 with positive power, the fourth lens L4 with positive power, the fifth lens L5 with negative power, the positive power The sixth lens L6 of high power, the seventh lens L7 of negative power, the eighth lens L8 of positive power, the ninth lens L9 of negative power, filter FI and protective glass CG; the fourth lens L4 and the fifth lens L5 are cemented.

[0083] Table 1 shows the basic lens data of the large-aperture vehicle-mounted lens of this embodiment, and Table 2 shows the aspheric coefficient.

[0084] The surface number column shows the surface number when the object side surface is set as the first surface and the number increases one b...

Embodiment 3

[0101] A large-aperture vehicle-mounted lens, the large-aperture vehicle-mounted lens is composed of nine lenses, and the large-aperture vehicle-mounted lens includes in sequence from the object plane side to the image plane side:

[0102] The first lens L1 with negative power, the second lens L2 with negative power, the third lens L3 with positive power, the fourth lens L4 with positive power, the fifth lens L5 with negative power, the positive power The sixth lens L6 of high power, the seventh lens L7 of negative power, the eighth lens L8 of positive power, the ninth lens L9 of negative power, filter FI and protective glass CG; the fourth lens L4 is cemented with the fifth lens L5, and the seventh lens L7 is cemented with the eighth lens L8.

[0103] Table 3 shows the basic lens data of the large-aperture vehicle-mounted lens of this embodiment, and Table 4 shows the aspheric coefficient.

[0104]The surface number column shows the surface number when the object side surfac...

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Abstract

The present invention relates to the field of optics, in particular to a large-aperture vehicle-mounted lens and an image pickup device. The large-aperture vehicle-mounted lens is composed of nine lenses, and the large-aperture vehicle-mounted lens includes: negative light from the object plane side to the image plane side First lens with negative power, second lens with negative power, third lens with positive power, fourth lens with positive power, fifth lens with negative power, sixth lens with positive power, negative The seventh lens with refractive power, the eighth lens with positive refractive power and the ninth lens with negative refractive power; the fourth lens and the fifth lens are cemented; the large aperture vehicle lens satisfies the following conditional formula: FNO <1.3; wherein, FNO is the relative aperture of the large aperture vehicle lens. It ensures the large aperture of the large-aperture vehicle-mounted lens, allowing the large-aperture vehicle-mounted lens to have sufficient light input, making the captured image clearer, and realizing the shooting of high-quality night scenes, starry sky and other low-brightness object space scenes.

Description

technical field [0001] The invention relates to the field of optics, in particular to a large aperture vehicle lens and an image pickup device. Background technique [0002] With the intelligent development of unmanned driving and the Internet of Vehicles, the requirements for vehicle lenses have also increased. The imaging quality requirements of vehicle lenses in extremely low-light environments are getting higher and higher, not only requiring bright pictures, but also high It also requires the increase of the field of view of the vehicle lens and the increase of the object distance, so that you can see far, wide and clear. [0003] The vehicle-mounted lens used in the prior art has a dark image, high noise, and low recognition in extremely dark environments, which cannot meet the needs of the market; and in order to meet the needs of the market for clear imaging in extremely dark environments, the lens needs to have a large aperture. and higher pixels, resulting in an i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0015G02B13/0045G02B13/006G02B13/06
Inventor 张云涛
Owner JIAXING ZHONGRUN OPTICAL TECH
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