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Low-cost wide-angle high-definition optical system and lens applied by same

An optical system and large wide-angle technology, applied in optics, optical components, instruments, etc., can solve the problems of small diagonal field of view, complex optical system or lens structure, high cost, etc., and achieve a small number of lenses and good high-temperature imaging effect , the effect of simple structure

Active Publication Date: 2016-11-23
GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of complex structure, small diagonal field of view and high cost of existing optical systems or lenses, the embodiments of the present invention provide a low-cost large wide-angle high-definition optical system on the one hand

Method used

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  • Low-cost wide-angle high-definition optical system and lens applied by same
  • Low-cost wide-angle high-definition optical system and lens applied by same
  • Low-cost wide-angle high-definition optical system and lens applied by same

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Embodiment Construction

[0027] 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.

[0028] Such as figure 1 As shown, the low-cost large wide-angle high-definition optical system includes at least a first lens 1 , a second lens 2 , a third lens 3 , and a fourth lens 4 in order along the optical axis from the object plane to the image plane 6 .

[0029] The object plane side of the first lens 1 is a plane, the image plane side is a concave surface, and its focal power is negative;

[0030] The object plane side of the second lens 2 is a convex surface, the image plane side is a convex surface, and its refractive power is positive;

[0031] The object p...

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PUM

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Abstract

The embodiment of the invention discloses a low-cost wide-angle high-definition optical system, which at least comprises a first lens, a second lens, a third lens, and a fourth lens in order from the object plane to the image plane along the optical axis, wherein the object plane side of the first lens is a plane, the image plane side of the first lens is a concave surface, and the focal power is negative; the object plane side of the second lens is a convex surface, the image plane side of the second lens is a convex surface, and the focal power is positive; the object plane side of the third lens is a plane, the image plane side of the third lens is a convex surface, and the focal power is positive; the object plane side of the fourth lens is a concave surface, the image plane side of the fourth lens is a convex surface, and the focal power is negative. The embodiment of the invention also provides a lens. The low-cost wide-angle high-definition optical system provided by the embodiment of the invention is applied to smart home and other occasions requiring day and night monitoring, and mainly comprises four lenses, the number of lenses is few, the structure is simple, and the cost is greatly reduced compared with the same specification of product. The optical system has good optical properties such as wide angle, large aperture and day and night confocus, a good temperature imaging effect, and an excellent 2M pixel resolution property.

Description

Technical field: [0001] The invention relates to an optical system and its applied lens, in particular to a low-cost large wide-angle 1080P high-definition optical system and its applied lens applied to occasions requiring day and night monitoring such as smart homes. Background technique: [0002] Existing optical systems or lenses, especially those used in smart homes and other occasions that require day and night monitoring, have the disadvantages of complex structure, small diagonal field of view, and high cost. Invention content: [0003] In order to overcome the problems of complex structure, small diagonal field of view, and high cost of existing optical systems or lenses, embodiments of the present invention provide a low-cost, wide-angle, high-definition optical system on the one hand. [0004] The low-cost large wide-angle high-definition optical system includes at least a first lens, a second lens, a third lens, and a fourth lens in sequence along the optical ax...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06
CPCG02B13/004G02B13/06
Inventor 汪鸿飞陈波席爱平符致农曾香梅曾伟曾蓉宁博刘佳俊刘振庭
Owner GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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