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US 2014/0176818 A1Published application
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.
Claims33
An optical component, comprising:
- a first reflective polarizer disposed to reflect light having a first polarization state and transmit light having a second polarization state different from the first polarization state;
- a second reflective polarizer positioned adjacent the first reflective polarizer and disposed to reflect light having the first polarization state and transmit light having the second polarization state;
- wherein the first reflective polarizer is a polymeric reflective polarizer and the second reflective polarizer comprises inorganic dielectric layers or a wire grid.
An optical component, comprising:
- a first prism having a first diagonal surface;
- a first reflective polarizer adjacent the first diagonal surface and disposed to reflect light having a first polarization state and transmit light having a second polarization state different from the first polarization state;
- a second reflective polarizer adjacent the first reflective polarizer opposite the first prism and disposed to reflect light having the first polarization state and transmit light having the second polarization state;
- and,
- a second prism having a second diagonal surface disposed so that the second diagonal surface is adjacent the second reflective polarizer opposite the first reflective polarizer;
- wherein the first reflective polarizer is a polymeric reflective polarizer and the second reflective polarizer comprises inorganic dielectric layers or a wire grid.
3 more elements
Dependencies are inferred from the claim text.