Super-depth high-pixel infrared scanning imaging optical system

A technology of infrared scanning and imaging optics, which is applied in the field of optical systems, can solve the problem of low pixels and achieve the effects of good resolution, short overall length and simple structure

Active Publication Date: 2018-03-02
GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the common problem of low pixels in existing infrared scanning optical systems, an embodiment of the present invention provides an infrared scanning imaging optical system with super depth of field and high pixels

Method used

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  • Super-depth high-pixel infrared scanning imaging optical system

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Embodiment Construction

[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0019] like figure 1 As shown, the infrared scanning imaging optical system with super depth of field and high pixels is sequentially provided along the optical axis from the object plane to the image plane 7: a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, and a fifth lens Lens 5.

[0020] The object surface side of the first lens 1 is a convex surface, the image surface side is a convex surface, and its optical power is positive;

[0021] The object plane side of the second lens 2 is concave, the image plane side is concave, and its optical powe...

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Abstract

The embodiment of the invention discloses a super-depth high-pixel infrared scanning imaging optical system which is provided with a first lens, a second lens, a third lens, a fourth lens and a fifthlens which are arranged from an object surface to an image surface in turn along the optical axis. The first lens is a biconvex lens of which the focal power is positive. The second lens is a biconcave lens of which the focal power is negative. The object surface side of the third lens is a plane, the image surface side is a convex surface and the focal power is positive. The fourth lens is a biconcave lens of which the focal power is negative. The object surface side of the fifth lens is a concave surface, the image surface side is a convex surface and the focal power is negative. The opticalsystem meets 0.8<TTL/f<=1.2, wherein TTL is the distance between the vertex of the object surface side of the first lens of the optical system and an imaging surface, and f is the focal length of thewhole optical system. The optical system is mainly composed of five lenses so that the structure is simple; and different lenses are mutually combined and the focal power is reasonably allocated so that the optical system has great performance of low cost, low total length, super depth, high pixel, large target surface and great resolution, etc.

Description

Technical field: [0001] The invention relates to an optical system, in particular to an infrared scanning imaging optical system with super depth of field and high pixels. Background technique: [0002] At present, the infrared scanning optical systems used in the market generally have problems such as low pixels, small shooting range, and many application scenarios. Because the lens adopts an all-glass structure, there are still problems such as high cost in mass production and long system length. Invention content: [0003] In order to overcome the common problem of low pixels in existing infrared scanning optical systems, embodiments of the present invention provide an infrared scanning imaging optical system with super depth of field and high pixels. [0004] The ultra-depth-of-field and high-pixel infrared scanning imaging optical system is sequentially provided with: a first lens, a second lens, a third lens, a fourth lens, and a fifth lens along the optical axis fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/14G02B13/18
CPCG02B13/00G02B13/14G02B13/18
Inventor 汪鸿飞刘振庭刘佳俊符致农尹小玲杜亮陈波徐程
Owner GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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