Surface-emitting laser devices and electronic equipment

By utilizing multiple light-emitting elements in a surface-emitting laser device, which serve as both light-emitting and light-receiving elements, and combining bias voltage control and an optical system, the problems of miniaturization and narrow distance measurement range in the Time-of-Flight (ToF) method are solved, enabling high-precision distance measurement for portable information terminals.

CN116171370BActive Publication Date: 2026-05-26SONY SEMICON SOLUTIONS CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SONY SEMICON SOLUTIONS CORP
Filing Date
2021-08-04
Publication Date
2026-05-26

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Abstract

[Problem] To achieve miniaturization without affecting distance measurement. [Solution] The surface-emitting laser device of the present invention is provided with a surface emitting section having a plurality of light-emitting elements disposed on a substrate, and some of the plurality of light-emitting elements serving as light-receiving elements.
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