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Ultra-wide-angle imaging optical system

An imaging optics, ultra-wide-angle technology, applied in optics, optical components, instruments, etc., to achieve the effect of high light weight and high definition

Active Publication Date: 2020-11-20
HUBEI HUAXIN PHOTOELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Optical imaging systems are widely used in monitoring systems, mobile phones, digital cameras and other fields, requiring high definition and large field of view of the imaging optical system, but there are still many deficiencies in the existing imaging optical systems. There is room for further improvement in clarity

Method used

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Embodiment Construction

[0044] Below, refer to the attached figure 1 Embodiments of the present disclosure will be described in detail.

[0045] figure 1 is a structural diagram of an ultra-wide-angle imaging optical system according to a first exemplary embodiment of the present disclosure. In this specification, the numerical value of the radius of curvature, the numerical value of the thickness, and the numerical value of the thickness of the lens may all be mm.

[0046] According to the ultra-wide-angle imaging optical system of the present disclosure, it is composed of a front lens group G1 and a rear lens group G2 arranged in sequence from the object side to the image side, the front lens group G1 has a negative refractive power, and the rear lens group G2 has a negative refractive power is positive; among them, the front lens group G1 is composed of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4; the rear lens group G2 is composed of the fifth lens L5, the si...

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Abstract

Provided in the invention is an ultra-wide-angle imaging optical system being composed of a front lens group with negative focal power and a rear lens group with positive focal power which are sequentially arranged from an object side to an image side. The front lens group is composed of a negative first lens, a negative second lens, a negative third lens and a positive fourth lens; the rear lensgroup is composed of a positive fifth lens, a negative sixth lens, a positive seventh lens, a positive eighth lens, a positive ninth lens and a positive tenth lens, and a diaphragm is arranged in thefirst lens group. The sixth lens and the seventh lens are glued to form a first glued lens, and the ninth lens and the tenth lens are glued to form a second glued lens. The field angle of the ultra-wide-angle imaging optical system is as high as 130 degrees.

Description

technical field [0001] The invention relates to an imaging optical system, in particular to a ten-chip ultra-wide-angle imaging optical system. Background technique [0002] Optical imaging systems are widely used in monitoring systems, mobile phones, digital cameras and other fields, requiring high definition and large field of view of the imaging optical system, but there are still many deficiencies in the existing imaging optical systems. There is room for further improvement in terms of clarity. Contents of the invention [0003] The invention provides an ultra-wide-angle imaging optical system, which is expected to be improved in terms of definition and large viewing angle. [0004] According to the ultra-wide-angle imaging optical system of the present disclosure, it is composed of a front lens group and a rear lens group arranged in sequence from the object side to the image side, the front lens group has a negative refractive power, and the rear lens group has a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18G02B13/006
Inventor 马翠娟
Owner HUBEI HUAXIN PHOTOELECTRIC CO LTD