Invention Grant
- Patent Title: Addressable vertical cavity surface emitting laser array for generating structured light patterns
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Application No.: US17347506Application Date: 2021-06-14
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Publication No.: US11611197B2Publication Date: 2023-03-21
- Inventor: Jonatan Ginzburg
- Applicant: META PLATFORMS TECHNOLOGIES, LLC
- Applicant Address: US CA Menlo Park
- Assignee: META PLATFORMS TECHNOLOGIES, LLC
- Current Assignee: META PLATFORMS TECHNOLOGIES, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Fenwick & West LLP
- Main IPC: H01S5/00
- IPC: H01S5/00 ; H01S5/40 ; H01S5/062 ; H01S5/42 ; G01B11/25 ; G02B27/01 ; G02C5/00

Abstract:
An addressable vertical cavity surface emitting laser (VCSEL) array may generate structured light in dot patterns. The VCSEL array includes a plurality of traces that control different groups of VCSELs, such that each group of VCSELs may be individually controlled. The VCSEL groups are arranged such that they emit a dot pattern, and by modulating which groups of VCSELs are active a density of the dot pattern may be adjusted. The VCSEL array may be part of a depth projector that projects the dot pattern into a local area. A projection assembly may replicate the dot pattern in multiple tiles.
Public/Granted literature
- US20210313778A1 ADDRESSABLE VERTICAL CAVITY SURFACE EMITTING LASER ARRAY FOR GENERATING STRUCTURED LIGHT PATTERNS Public/Granted day:2021-10-07
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