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Transmission beam splitter

A beam splitter and transmitter technology, applied in the field of beam splitting, can solve problems such as complex time-of-flight analysis

Active Publication Date: 2021-07-20
STMICROELECTRONICS (RES & DEV) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Time-of-flight analysis for multiple objects and / or for multiple points on a single object is more complex, often utilizing multiple light sources and / or multiple optical structures

Method used

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Embodiment Construction

[0020] In the following description, certain specific details are set forth in order to provide a thorough understanding of various aspects of the disclosed subject matter. However, the disclosed subject matter may be practiced without these specific details. In some instances, well-known structures of, and methods of manufacturing, electronic devices, optical lenses, and sensors have not been described in detail so as not to obscure the description of other aspects of the present disclosure.

[0021] Unless the context requires otherwise, throughout the following description and claims, the word "comprise" and variations thereof (such as "having" and "comprising") should be interpreted in an open, inclusive sense, ie "including, but not limited to".

[0022] Throughout this specification, reference to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodim...

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PUM

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Abstract

The embodiments of the invention relates to a transmission beam splitter. The present disclosure is directed to an electronic device including a sensor having a transmission module configured to provide a plurality of collimated light beams. The transmission module includes a light source and a transmission beam splitter. The transmission beam splitter includes a plurality of lenslets. The transmission beam splitter is configured to receive one or more light beams from the light source and refract the one or more light beams for forming the plurality of collimated light beams.

Description

technical field [0001] This application relates generally to beam splitting, and more particularly to transmission beam splitting. Background technique [0002] Proximity sensors (sometimes called range sensors) are commonly used to detect the distance to an object of interest. Typically, a proximity sensor includes a transmitter that emits a light signal at a target object, and a proximity sensor includes a receiver that receives light signals reflected from the target object back to the sensor. Then, in time-of-flight analysis, based on the received light signal, the distance from the sensor to the target object is calculated. [0003] Time-of-flight analysis for multiple target objects and / or for multiple points on a single target object is more complex, often utilizing multiple light sources and / or multiple optical structures. There is a need for a compact, cost-effective system that can be used to implement time-of-flight analysis for multiple target objects and / or mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/30G01S17/08G01S7/481
CPCG02B27/30G01S17/08G01S7/481G02B19/0047G02B19/0014G02B27/123H01S5/183H01S5/005G01S17/36G01S7/4814G01S7/4815G01B11/25G02B2003/0093G02B3/0062
Inventor T·戈帕尔·克里什南C·汤森
Owner STMICROELECTRONICS (RES & DEV) LTD