Invention Grant
- Patent Title: Color separation in planar waveguides using dichroic filters
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Application No.: US15849527Application Date: 2017-12-20
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Publication No.: US10371896B2Publication Date: 2019-08-06
- Inventor: Ivan Li Chuen Yeoh , Lionel Ernest Edwin , Hui-Chuan Cheng
- Applicant: Magic Leap, Inc.
- Applicant Address: US FL Plantation
- Assignee: MAGIC LEAP, INC.
- Current Assignee: MAGIC LEAP, INC.
- Current Assignee Address: US FL Plantation
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: G02B6/293
- IPC: G02B6/293 ; F21V8/00 ; G02B27/00 ; G02B27/42 ; G02B27/44 ; G02B27/10 ; G02B5/18

Abstract:
An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a lateral position. The second waveguide includes a second DOE coupled thereto and disposed at the lateral position. The third waveguide includes a third DOE coupled thereto and disposed at the lateral position. The eyepiece further includes a first optical filter disposed between the first waveguide and the second waveguide at the lateral position, and a second optical filter positioned between the second waveguide and the third waveguide at the lateral position.
Public/Granted literature
- US20180180817A1 COLOR SEPARATION IN WAVEGUIDES USING DICHROIC FILTERS Public/Granted day:2018-06-28
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