Optical: systems and elements – Optical modulator
Reexamination Certificate
2007-02-27
2007-02-27
Mack, Ricky (Department: 2873)
Optical: systems and elements
Optical modulator
C359S625000
Reexamination Certificate
active
11253556
ABSTRACT:
A spatial light modulator includes a modulator for modulating incident light in accordance with an image signal, and an optical path deflector that is provided in the neighborhood of the modulator and reflects the incident light to the modulator, wherein the modulator includes plural pixel portions arranged in a matrix form and a light shielding portion provided between the pixel portions, and the optical path deflector is a prism element having a reflection portion for reflecting the incident light to the pixel portions, the prism element being disposed at a position corresponding to the light shielding portion on a reference face, and the length of the prism element in a direction substantially perpendicular to the reference face being set in the range from 15 times to 250 times of the length of the prism element in a direction substantially parallel to the reference face.
REFERENCES:
patent: 5151801 (1992-09-01), Hiroshima
patent: 6700554 (2004-03-01), Ham et al.
patent: 7113341 (2006-09-01), Kamijima
patent: A-2004-070282 (2004-03-01), None
patent: A-2004-347692 (2004-12-01), None
Mack Ricky
Seiko Epson Corporation
Tra Tuyen
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