Invention Grant
- Patent Title: Near-eye system having polarization waveguide
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Application No.: US16159258Application Date: 2018-10-12
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Publication No.: US10976552B2Publication Date: 2021-04-13
- Inventor: Yi Qin , Jerome Carollo , Xinda Hu , Oscar Martinez , Serge Bierhuizen
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Main IPC: G02B27/14
- IPC: G02B27/14 ; G02B27/01 ; G02B5/30 ; G02B27/28

Abstract:
A near-eye display system includes a polarization waveguide having an in-coupling interface disposed proximate to a first end and an out-coupling interface disposed proximate to an opposite second end. The polarization waveguide is configured to convey light incident at the in-coupling interface to the out-coupling interface by inducing multiple changes in a polarization state of the light as the light traverses the polarization waveguide. At least a subset of the changes in polarization state induce the light to reflect within the polarization waveguide without relying on total internal reflection (TIR).
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