OPTICAL STACK AND OPTICAL SYSTEM
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United States of America Patent
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Issued Date -
Aug 29, 2019
app pub date -
May 13, 2019
filing date -
Sep 3, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
An optical stack includes first and second lenses, a partial reflector, a reflective polarizer, and a retarder. The reflective polarizer is curved about two orthogonal axes and includes at least one layer that is substantially optically uniaxial at at least one location. An optical system includes the optical stack disposed between an image surface and an exit surface. The optical system is configured such that substantially any chief ray transmitted from the image surface to the exit surface is first incident on the reflective polarizer at an angle of incidence less than 30 degrees.
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International Classification(s)
- G03B:APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS O....
- G02C:SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY ....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- G06F:ELECTRIC DIGITAL DATA PROCESSING
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