Depth imaging optical system and applied lens

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...

AI Technical Summary

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

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