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Optical lens

An optical lens and lens technology, applied in the field of optical systems, can solve the problems of high design requirements for wide-angle optical lenses and difficulty in meeting application requirements

Active Publication Date: 2022-07-26
YUYAO SUNNY OPTICAL INTELLIGENCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in order to ensure no vignetting and balance the distortion relationship, the design requirements of the wide-angle optical lens based on TOF ranging are higher, and it is more difficult to meet the application requirements.

Method used

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Embodiment Construction

[0054] The following description serves to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments described below are given by way of example only, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

[0055] It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and to simpli...

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Abstract

The present invention provides an optical lens, which includes a first lens, a second lens, a third lens and a fourth lens in sequence from the object side to the image side, wherein the first lens and the second lens Both the image-side surface and the object-side surface of the third lens and the fourth lens are aspherical. In this way, the optical lens can be applied to optical sensors of various types of smart devices based on TOF technology, such as cleaning robots, lidars, gesture recognition devices, etc., and meets the optical performance requirements thereof.

Description

technical field [0001] The present invention relates to optical systems, and more particularly to wide-angle optical lenses for TOF smart devices. Background technique [0002] The diversification of smart devices has brought a lot of convenience to today's society, and its research and development has attracted more and more attention from all walks of life. Among the sensors of smart devices, the most important is the optical sensor that collects the surrounding effective signals. Moreover, smart devices such as depth perception devices (including but not limited to lidars, sweeping robots, etc.) based on TOF modules are developing in the direction of mass production, miniaturization and civilian use. [0003] At present, TOF ranging technology (Time of Flight) has been widely used in optical sensors of various smart devices such as gesture recognition, sweeping robots, and lidars. In some practical applications, the optical sensor based on the TOF ranging technology is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/004G02B13/0055G02B13/06
Inventor 刘冰玉杜佳玮
Owner YUYAO SUNNY OPTICAL INTELLIGENCE TECH CO LTD
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