Optics: image projectors – Polarizer or interference filter
Reexamination Certificate
2011-04-13
2011-12-06
Ward, John A (Department: 2885)
Optics: image projectors
Polarizer or interference filter
C362S268000
Reexamination Certificate
active
08070294
ABSTRACT:
A projector having a first lens array with a plurality of first lenses in a plane substantially orthogonal to an optical axis of the light beam from a light source that divides the light beam into a plurality of partial light beams, a second lens array having a plurality of second lenses corresponding to the plurality of first lenses, and a polarization converter that is disposed on a light beam emitting-side of the first lens array. A focal position in a first direction of the first lens is set in the vicinity of the second lens array in the optical direction of the light beam irradiated from the first lens. A focal position in the second direction of the first lens is set in the vicinity of the polarization converter in the optical direction of the light beam irradiated from the first lens.
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Ishibashi Osamu
Nishida Kazuhiro
Oliff & Berridg,e PLC
Seiko Epson Corporation
Ward John A
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