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US 10,591,741 B2Granted
Hybrid polarizing beam splitter
Assignee3M Innovative Properties Company
InventorsPhilip E. Watson, Yarn Chee Poon, Andrew J. Ouderkirk
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Abstract
Polarizing beam splitters and systems incorporating such beam splitters are described. More specifically, hybrid polarizing beam splitters and systems with such beam splitters that incorporate polymeric reflective polarizers aligned with MacNeille or wire grid reflective polarizers are described.
Claims10
A system, comprising:
- first and second reflective polarizers disposed between and adhered to first and second prisms and reflecting light having a same first polarization state and transmitting light having a same second polarization state substantially orthogonal to the first polarization state, the first reflective polarizer comprising polymeric layers, the second reflective polarizer comprises inorganic dielectric layers or a wire grid;
- a polarization rotating reflector disposed on, and substantially parallel to, a major surface of the first prism and facing the first reflective polarizer opposite the second reflective polarizer;
- and
- an imager disposed on the second prism and facing the second reflective polarizer opposite the first reflective polarizer.
1 more element
Dependencies are inferred from the claim text.