Light modulator, and optical apparatus using the same

Details Light modulator, and optical apparatus using the same Light modulator, and optical apparatus using the same

2008-01-08

2008-01-08

Rutledge, D. (Department: 2851)

Photocopying

Projection printing and copying cameras

Illumination systems or details

C355S071000

Reexamination Certificate

active

07317511

ABSTRACT:
A light modulator for modulating a phase distribution of incident light includes an element that provides the incident light with three or more types of phase differences, wherein the element includes three or more displaceable light reflective bands, and wherein the light modulator has plural pixels each including the element.

REFERENCES:
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patent: 6489984 (2002-12-01), Johnson
patent: 6600606 (2003-07-01), Sekine
patent: 2005/0190354 (2005-09-01), de Jager
patent: 2005/0200821 (2005-09-01), Gui
patent: 2005/0243398 (2005-11-01), Latypov
patent: 2006/0001855 (2006-01-01), Lof et al.
patent: 2006/0209250 (2006-09-01), Holmes
patent: 11-237602 (1999-08-01), None
patent: 2003-059804 (2003-02-01), None
Solgaard et al, “Deformable grating optical modulator”, Optics Letters, vol. 17, No. 9, May 1, 1992, pp. 688-690.

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