- Patent Title: Transparent illumination layer with transparent waveguide structure
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Application No.: US16877988Application Date: 2020-05-19
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Publication No.: US11561336B2Publication Date: 2023-01-24
- Inventor: Guohua Wei , Qi Zhang , Andrew John Ouderkirk , Matthew E Colburn
- 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: Freestone Intellectual Property Law PLLC
- Agent Aaron J. Visbeek
- Main IPC: F21V8/00
- IPC: F21V8/00 ; G02B27/01
Abstract:
An optical element includes a transparent layer, outcoupling elements, and a waveguide structure. The outcoupling elements are positioned across the transparent layer. The waveguide structure provides non-visible light to the outcoupling elements and the outcoupling elements outcouple the non-visible light as non-visible illumination light to illuminate an eye region.
Public/Granted literature
- US20210103087A1 TRANSPARENT ILLUMINATION LAYER WITH TRANSPARENT WAVEGUIDE STRUCTURE Public/Granted day:2021-04-08
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