OPTICAL SYSTEM AND MAGNIFYING DEVICE
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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) -
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status (Latency Note)
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Abstract
An optical system and a magnifying device including the optical system are described. The optical system includes a reflective polarizer, a partial reflector, and a retarder disposed between the reflective polarizer and the partial reflector. 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.
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International Classification(s)
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G06F:ELECTRIC DIGITAL DATA PROCESSING
- G03B:APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS O....
- G02C:SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY ....
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