Invention Grant
- Patent Title: Compact multi-color beam combiner using a geometric phase lens
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Application No.: US15833676Application Date: 2017-12-06
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Publication No.: US10466496B2Publication Date: 2019-11-05
- Inventor: Maxwell Parsons
- Applicant: Facebook Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Facebook Technologies, LLC
- Current Assignee: Facebook Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: G02B27/12
- IPC: G02B27/12 ; G02B1/10 ; G02B27/01 ; G02B27/10 ; G02B27/28 ; G02B27/30 ; G02B3/10 ; G02B5/26 ; G02B5/30 ; G02B5/32 ; G02B27/14

Abstract:
Disclosed is a multi-color light source device including a first light source configured to emit light of a first color, a second light source configured to emit light of a second color that is distinct from the first color, and a first geometric phase lens associated with a first focal length for the light of the first color and a second focal length, distinct from the first focal length, for the light of the second color. The first light source is located at a first distance from the first geometric phase lens, and the second light source is located at a second distance, distinct from the first distance, from the geometric phase lens. Also disclosed is a head mounted display system including the multi-color light source device, a light modulator configured for modulating light from the multi-color light source device, and one or more lenses.
Public/Granted literature
- US20190171026A1 Compact Multi-Color Beam Combiner Using a Geometric Phase Lens Public/Granted day:2019-06-06
Information query