Polarizing beam splitting system
Assignee3M Innovative Properties Company
InventorsAndrew J. Ouderkirk, Zhisheng Yun, Erin A. McDowell, Timothy L. Wong, Kandyce M. Bohannon
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Abstract
A polarizing beam splitting system is described. The polarizing beam splitting system may include first and second prisms where the volume of the first prism is no greater than half the volume of the second prism. The first prism includes first and second surfaces and a light source may be disposed adjacent the first surface and an image forming device may be disposed adjacent the second surface. The first prism has a first hypotenuse and the second prism has a second hypotenuse. A reflective polarizer is disposed between the first and second hypotenuses.
Claims13
A polarizing beam splitting system comprising:
- a first prism comprising a first face and a first peak opposite the first face;
- a second prism disposed adjacent the first face of the first prism and comprising:
- opposing facets meeting at a second peak opposite the first peak;
- and
- extensions extending from the facets along the first face of the first prism, each extension comprising opposing substantially parallel major surfaces;
- and
- a reflective polarizer disposed between the first and second prisms.
Dependencies are inferred from the claim text.