Optical processing assembly, ToF transmitting device and ToF depth information detector

A technology of transmitting device and light processing, applied in the field of three-dimensional sensing, can solve the problems of low data accuracy of ToF device, low utilization rate of light energy of transmitting device, small detection range, etc., achieve low power consumption, improve detection performance, The effect of expanding the detection range

Active Publication Date: 2020-11-13
SHANGHAI NORTH OCEAN PHOTONICS CO LTD
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  • Abstract
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Problems solved by technology

[0004] The light energy utilization rate of the emission device of the ToF device in the prior art is low, resulting in less real and effective data that the ToF device can obtain, so that the ToF device has problems such as low data accuracy and small detection range

Method used

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  • Optical processing assembly, ToF transmitting device and ToF depth information detector
  • Optical processing assembly, ToF transmitting device and ToF depth information detector
  • Optical processing assembly, ToF transmitting device and ToF depth information detector

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Embodiment Construction

[0063] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0064] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present inven...

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Abstract

The invention discloses an optical processing assembly, a ToF transmitting device and a ToF depth information detector. The light processing assembly is suitable for an emission light source, the emission light source is used for emitting detection light to a target view field, the emission light source comprises a plurality of light source units, and each light source unit is lightened accordingto a preset time sequence. The light processing assembly comprises at least one light shaper which is configured to carry out light beam shaping on the detection light emitted by each light source unit of the emission light source so as to narrow the divergence angle of the detection light and guide the central propagation direction of each detection light to a preset central angle of a partition,and a light homogenizer which is configured to homogenize the detection light emitted by each light source unit and project the detection light outwards to form a target view field interval, and thelight homogenizing angle of the light homogenizer is used for adjusting the irradiation range of the detection light so as to form a continuous and uniform illumination area in the target view field.

Description

technical field [0001] The invention relates to the technical field of three-dimensional sensing, in particular to an optical processing component, a ToF emitting device and a ToF depth information detector. Background technique [0002] At present, among the mainstream solutions of 3D sensing technology, ToF (Time of flight, time of flight) has been widely concerned and applied in industries such as smartphones due to its advantages of small size, low error, direct output of depth data and strong anti-interference. . In terms of technical implementation methods, there are two types of ToF, one is direct distance measurement dToF, that is, the distance is determined by emitting and receiving light and measuring the time of flight of photons; the other is the mature indirect distance measurement iToF on the market, that is, by measuring The phase difference between the transmitted and received waveforms is converted to time-of-flight to determine distance. Among them, dTo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/894G01S7/481
CPCG01S7/481
Inventor 孟玉凰黄河楼歆晔郑旭君林涛
Owner SHANGHAI NORTH OCEAN PHOTONICS CO LTD
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