Invention Grant
- Patent Title: Split prism illuminator for spatial light modulator
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Application No.: US16874099Application Date: 2020-05-14
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Publication No.: US11668866B2Publication Date: 2023-06-06
- Inventor: Andrew John Ouderkirk , Tanya Malhotra , Brian Wheelwright , Weichuan Gao , Ying Geng
- 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: Morgan, Lewis & Bockius LLP
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G02B5/30 ; H04N9/31 ; G02B27/28 ; G03H1/02

Abstract:
An optical device includes a first polarization selective reflector positioned in a first orientation so that the first polarization selective reflector: receives first light in a first direction; redirects a first portion, of the first light, having a first polarization to a second direction that is non-parallel to the first direction; and receives second light in a third direction and transmit a first portion, of the second light. A second polarization selective reflector positioned in a second orientation non-parallel to the first orientation, and adjacent to the first polarization selective reflector so that the second polarization selective reflector: receives third light in a fourth direction; redirects a first portion, of the third light, having the first polarization to a fifth direction that is non-parallel to the fourth direction; and receives fourth light in a sixth direction and transmit a first portion, of the fourth light having the second polarization.
Public/Granted literature
- US20200371358A1 SPLIT PRISM ILLUMINATOR FOR SPATIAL LIGHT MODULATOR Public/Granted day:2020-11-26
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