OPTICAL SYSTEM
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United States of America Patent
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Issued Date -
Aug 29, 2019
app pub date -
May 10, 2019
filing date -
Sep 3, 2015
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
Optical systems including a partial reflector, a reflective polarizer, and a retarder disposed between the partial reflector and the reflective polarizer are described. 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. The optical system is adapted to provide an adjustable focus.
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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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