Depth imaging optical system and applied lens

A technology of imaging optics and optical systems, applied in optics, optical components, instruments, etc., can solve problems such as too many lenses and complex structures, and achieve the effects of fewer lenses, low distortion and heat dissipation, and simple structures

Active Publication Date: 2017-05-10
GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] In order to overcome the problems of too many lenses and complicated structures in existing optical systems or lenses, the embodiments of the present invention provide a depth imaging optical system on the one hand

Method used

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  • Depth imaging optical system and applied lens
  • Depth imaging optical system and applied lens
  • Depth imaging optical system and applied lens

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Embodiment Construction

[0024] 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.

[0025] Such as figure 1 As shown, the depth imaging optical system is sequentially provided with: a first lens 1 , a second lens 2 , and a third lens 3 along the optical axis from the object plane to the image plane 6 .

[0026] The object plane side of the first lens 1 is a convex surface, the image plane side is a concave surface, and its focal power is negative;

[0027] 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;

[0028] The object plane side of the third lens 3 is ...

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Abstract

The embodiment of the invention discloses a depth imaging optical system, which is provided with a first lens, a second lens and a third lens sequentially from an object plane to an image plane along an optical axis, wherein the object plane side of the first lens is a convex plane, the image plane side is a concave plane, and the focal power is negative; the object plane side of the second lens is a convex plane, the image plane side is a convex plane, and the focal power is positive; the object plane side of the third lens is a convex plane, the image plane side is a convex plane, and the focal power is positive; and the first lens and the third lens are aspheric lenses. On the other hand, the embodiment of the invention also provides a lens. The depth imaging optical system is mainly composed of three lenses, the number of the lenses is small, and the structure is simple; different lenses are adopted for mutual combination, the first lens and the third lens are aspheric lenses, and optical performance of large aperture, large view angle, low distortion, good athermalization and the like are realized.

Description

[0001] Technical field: [0002] The invention relates to an optical system and its applied lens, in particular to an optical system and lens composed of three lenses. [0003] Background technique: [0004] With the development of laser lighting technology and 3D somatosensory interaction technology, the demand and application of near-infrared light sources and depth imaging lenses are becoming more and more extensive. However, the existing depth imaging optical systems or lenses generally have the defects of too many lenses and complex structures, which cannot meet the optical performance requirements of large aperture, large field of view, low distortion and athermalization. [0005] Invention content: [0006] In order to overcome the problems of too many lenses and complex structures in existing optical systems or lenses, the embodiments of the present invention provide a depth imaging optical system. [0007] The depth imaging optical system is sequentially provided alo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0035G02B13/06G02B13/18
Inventor 刘洪海刘佳俊汪鸿飞尹小玲符致农徐小龙曾伟李飞武宁博曾蓉
Owner GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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