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Vehicle-mounted active safe forward-looking lens

An active safety and forward-looking technology, applied in optical components, optics, instruments, etc., can solve problems such as unsatisfactory requirements, and achieve the effects of easy processing and assembly, simple structure, and stability

Pending Publication Date: 2020-03-27
SIRTEC INT SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, everyone pays more and more attention to the safety performance of vehicles. The active safety configuration of vehicles should be the most important part of various configurations. Among them, the vehicle-mounted front-view lens is an important part of vehicle active safety. The vehicle-mounted active safety front-view lens has In addition to the requirements of high light transmission, clear imaging, and high and low temperature imaging stability, it is also proposed that the horizontal field of view angle be unchanged and the vertical field of view angle be larger to meet the field of view requirements of front-view active safety. However, the current vehicle-mounted front-view The viewing lens does not meet the requirements

Method used

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  • Vehicle-mounted active safe forward-looking lens
  • Vehicle-mounted active safe forward-looking lens
  • Vehicle-mounted active safe forward-looking lens

Examples

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Embodiment Construction

[0029] Such as Figure 1 to Figure 6 As shown, a vehicle-mounted active safety front-view lens of the present invention comprises sequentially arranged from the object side to the image side:

[0030] The first lens L1 is a meniscus lens with a convex surface on the object plane side and a concave surface on the image plane side;

[0031] The second lens L2 is a meniscus lens with a concave surface on the object plane side and a convex surface on the image plane side;

[0032] The third lens L3 is a biconvex lens with a convex surface on the object plane side and a convex surface on the image plane side;

[0033] The fourth lens L4 is a biconvex lens with a convex surface on the object side and a convex surface on the image side;

[0034] The fifth lens L5 is a meniscus lens with a concave surface on the object plane side and a convex surface on the image plane side;

[0035] The sixth lens L6 is a lens with a convex surface on the object side and a concave surface on the i...

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Abstract

The invention provides a vehicle-mounted active safety forward-looking lens which can meet the field requirement of forward-looking active safety. The vehicle-mounted active safety forward-looking lens comprises: a first lens which is a lens with a convex object plane side and a concave image plane side; a second lens with a concave object plane side and a convex image plane side ; a third lens isa lens with a convex object plane side and a convex image plane side; a fourth lens which is a lens with a convex object plane side and a convex image plane side; a fifth lens which is a lens with aconcave object plane side and a convex image plane side; a sixth lens which is a lens with a convex object plane side and a concave image plane side; wherein the first lens, the second lens, the thirdlens, the fourth lens, the fifth lens and the sixth lens are arranged from the object side to the image side in order, and the fourth lens and the fifth lens are cemented into a doublet lens; and thevehicle-mounted active safety forward-looking lens satisfies the following conditions: -2(f1 / f<-1, 60<f2 / f<100, 1<f3 / f<2, -5<f4 / f<1, -2<f5 / f<-1, 5<f6 / f<10, and |DIST0.5|>|DIST1.0*30%|, wherein f1 tof6 are focal lengths of the first to sixth lenses, f is a focal length value of the vehicle-mounted active safety foresight lens, dIST0.5 is a semi-imaging optical distortion value of the vehicle-mounted active safety forward-looking lens, and DIST1.0 is a full-imaging optical distortion value of the vehicle-mounted active safety forward-looking lens.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a vehicle-mounted active safety front-view lens. Background technique [0002] Nowadays, everyone pays more and more attention to the safety performance of vehicles. The active safety configuration of vehicles should be the most important part of various configurations. Among them, the vehicle-mounted front-view lens is an important part of vehicle active safety. The vehicle-mounted active safety front-view lens has In addition to the requirements of high light transmission, clear imaging, and high and low temperature imaging stability, it is also proposed that the horizontal field of view angle be unchanged and the vertical field of view angle be larger to meet the field of view requirements of front-view active safety. However, the current vehicle-mounted front-view The viewing lens can not meet the requirements. Contents of the invention [0003] In view of the abov...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G02B1/00
CPCG02B13/00G02B13/18G02B1/00Y02T10/40
Inventor 吴喆明孙振中刘安民耿永飞
Owner SIRTEC INT SUZHOU
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