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Vehicle-mounted wide-angle lens

A wide-angle lens, vehicle-mounted technology, applied in the field of optical lenses, can solve the problems of low image resolution, small field of view, inability to meet the driver's high-definition vehicle camera lens and other problems, and achieve high imaging resolution, wide field of view, weight light effect

Active Publication Date: 2018-10-02
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing vehicle-mounted camera lenses have a small field of view and low-resolution images, which cannot meet the driver's demand for high-definition vehicle-mounted camera lenses.

Method used

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  • Vehicle-mounted wide-angle lens
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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] see figure 1 , the present invention provides a vehicle-mounted wide-angle lens, the wide-angle lens includes a front lens group with negative refractive power, a diaphragm, and a rear lens group with positive refractive power in sequence from the object side to the image side, and the front lens group goes from the object side to the image side The square includes a first lens L1, a second lens L2 and a third lens L3 in sequence. The rear lens group 30 includes a fourth lens L4 , a fifth lens L5 and a sixth lens L6 sequentially from the object side to the image side.

[0...

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Abstract

The invention provides a vehicle-mounted wide-angle lens, which comprises a front lens group having negative focal power, a diaphragm and a rear lens group having positive focal power in sequence froman object side to an image side, wherein the front lens group comprises a first lens, a second lens and a third lens in sequence from the object side to the image side; the first lens is a meniscus lens having negative focal power, and the convex surface of the first lens faces towards the object side; the second lens is a biconcave lens having negative focal power; the third lens is a biconvex lens having positive focal power; the rear lens group comprises a fourth lens, a fifth lens and a sixth lens in sequence from the object side to the image side; the fourth lens is a biconvex lens having positive focal power; the fifth lens is a biconcave lens having negative focal power; and the sixth lens is a biconvex lens having positive focal power. The vehicle-mounted wide-angle lens providedby the invention has the advantages of compact structure, small distortion and ability of obtaining high imaging definition.

Description

【Technical field】 [0001] The invention relates to an optical lens, in particular to a vehicle-mounted wide-angle lens. 【Background technique】 [0002] As drivers pay more and more attention to driving safety. Car cameras are being widely used to ensure the safety of drivers. The clarity of the image information acquired by the on-board camera and the size of the field of view have a crucial impact on the driving safety of the driver. [0003] The existing vehicle-mounted camera lens has a small field of view and a low resolution of the acquired image, which cannot meet the driver's demand for a high-definition vehicle-mounted camera lens. 【Content of invention】 [0004] In order to overcome the deficiencies in the prior art. The invention provides a vehicle-mounted wide-angle lens. [0005] The technical solution of the present invention to solve the technical problem is to provide a kind of vehicle-mounted wide-angle lens, which comprises a front lens group with negat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06
CPCG02B13/0045G02B13/06Y02T10/40
Inventor 朱勇建钟建平秦运柏漆广文
Owner GUANGXI NORMAL UNIV
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