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A fisheye monitoring optical system and its applied lens

An optical system and fisheye technology, applied in optics, optical components, instruments, etc., can solve the problems of a large number of lenses, low resolution, complex lens structure, etc., and achieve the effect of a small number of lenses and a simple structure

Active Publication Date: 2017-07-14
GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the problems of complex fisheye optical system or lens structure, large number of lenses, and low resolution in the prior art, the embodiments of the present invention provide a fisheye monitoring optical system on the one hand

Method used

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  • A fisheye monitoring optical system and its applied lens
  • A fisheye monitoring optical system and its applied lens
  • A fisheye monitoring optical system and its applied lens

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Embodiment Construction

[0029] 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 in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] like figure 1 As shown, a fisheye monitoring optical system includes at least a front lens group G1 and a rear lens group G2 along the optical axis from the object plane to the image plane, and the front lens group G1 includes a first lens 1, a second lens 2, The third lens 3, and the fourth lens 4; the rear lens group G2 includes a fifth lens 5, a sixth lens 6, a seventh lens 7, and an eighth lens 8; and the optical system satisfies the following conditions:

[0031] (1) -0.098

[0032] (2) -0.17

[0033] (3) -0.22

[0034...

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Abstract

One embodiment of the invention discloses a fish eye monitoring optical system. The system at least successively comprises a front lens group and a rear lens group from an object surface to an image surface along an optical axis, wherein the front lens group comprises a first lens, a second lens, a third lens and a fourth lens; and the rear lens group comprises a fifth lens, a sixth lens, a seventh lens and an eighth lens. On the other hand, another embodiment of the invention also provides a lens. According to the embodiments of the invention, the front lens group and the rear lens group are provided with eight lenses all together, the number of the lenses is reduced, and the structure is simple; and besides, optical conditions which are met by the optical system or the lens enable the optical system or the lens to have excellent performance of large aperture, high resolution, day and night confocal property the like.

Description

[0001] Technical field: [0002] The invention relates to an optical system and a lens applied thereto, in particular to a fisheye monitoring optical system and lens. [0003] Background technique: [0004] For example, the invention patents with publication numbers CN103293640A and CN104330873A disclose a fisheye optical system or lens, but both of them have the problems of complex structure and large number of lenses. Even if there are fewer fisheye optical systems or lenses on the market, their resolution is not high, and the imaging is not clear enough, which needs to be improved. [0005] Invention content: [0006] In order to overcome the problems of complex fisheye optical system or lens structure, large number of lenses, and low resolution in the prior art, the embodiments of the present invention provide a fisheye monitoring optical system on the one hand. [0007] A fish-eye monitoring optical system, which sequentially includes at least a front lens group and a re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00
CPCG02B13/0015
Inventor 松冈和雄赵治平陈波汪鸿飞刘佳俊席爱萍徐厚群李飞武任桂文
Owner GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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