Optics: image projectors – Polarizer or interference filter
Reexamination Certificate
2011-07-12
2011-07-12
Lee, John R (Department: 2878)
Optics: image projectors
Polarizer or interference filter
C353S037000, C362S341000
Reexamination Certificate
active
07976167
ABSTRACT:
A light engine has a light source front surface that emits non-collimated light. A collection lens collects the non-collimated light and provides incompletely collimated light. A collimating lens receives the incompletely collimated light and provides a collimated image. A non-orthogonal polarizing filter receives the collimated image and passes a polarized portion of the collimated image as a direct component of the polarized light engine image. The non-orthogonal polarizing filter reflects a recycled image back to the front surface. The non-orthogonal shape of the polarizing filter is selected according to the pattern of light on the light source front surface.
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Data Management White Papers, silicon.com, http://whitepapers.silicon.com/0,39024759,60243129p-39000676g.00.htm, downloa
Destain Patrick R.
English, Jr. Ronald E.
Phillips, III William E.
3M Innovative Properties Company
Lee John R
Storvick Kristofor L.
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