Depth imaging optical systems and lenses for their applications

Abstract

The embodiment of the present invention discloses a depth imaging optical system, which is sequentially provided with a first lens, a second lens, and a third lens along the optical axis from the object surface to the image surface; the object surface side of the first lens is a convex surface, and the image The surface side is concave, and its optical power is negative; the object side of the second lens is convex, and the image side is convex, and its optical power is positive; the object side of the third lens is convex, and the image side is convex. , its optical power is positive; wherein, the first lens and the third lens are aspherical lenses. On the other hand, an embodiment of the present invention further provides a lens. In the embodiment of the present invention, it is mainly composed of three lenses, the number of lenses is small, and the structure is simple; different lenses are combined with each other, and the first lens and the third lens are aspherical lenses, which have large aperture, large viewing angle, low distortion and good performance. Optical properties such as thermal dissipation.

Description

Technical field: [0001] The invention relates to an optical system and an applied lens, in particular to an optical system and a lens composed of three lenses. Background technique: [0002] 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, and cannot meet the optical performance requirements of large aperture, large field of view, low distortion and athermal aberration. Invention content: [0003] In order to overcome the problems of too many lenses and complex structures in existing optical systems or lenses, embodiments of the present invention provide a depth imaging optical system in one aspect. [0004] The depth imaging optical system is composed of a first lens, a second ...

AI Technical Summary

Problems solved by technology

[0003] 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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