Device for displaying images by projection, comprising...

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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Details

C345S087000, C348S757000, C348S336000, C348S337000, C348S338000, C348S780000, C348S785000, C359S634000, C359S629000, C359S583000, C359S589000

Reexamination Certificate

active

06956551

ABSTRACT:
Device comprising:matrices of reflecting elements which can be electrically driven, andmeans for deconstructing a beam of polychromatic light and means for reconstructing complementary reflected beams, comprising two dichroic filters with a gradient where, for at least one of these filters, the direction of the gradient HOG, H′OG′ makes an angle of inclination of non-zero gradient δ, δ′ with a plane (DOE, D′OE′) orthogonal to the reflecting surfaces of the matrices.By virtue of the inclination of the gradient, the chromatic performance of the device is substantially improved.

REFERENCES:
patent: 2589930 (1952-03-01), Dimmick et al.
patent: 2945413 (1960-07-01), Kelly
patent: 4400722 (1983-08-01), Miyatake et al.
patent: 5073013 (1991-12-01), Sonehara et al.
patent: 5337093 (1994-08-01), Kaneko et al.
patent: 5530489 (1996-06-01), Henderson et al.
patent: 5864374 (1999-01-01), Ito et al.
patent: 5986815 (1999-11-01), Bryars
patent: 6327093 (2001-12-01), Nakanishi et al.
patent: 0457404 (1991-11-01), None
patent: 0477028 (1992-03-01), None
Patent Abstracts of Japan; vol. 016, No. 125 (P-1331), Mar. 30, 1992 & JP 03291644 A (Seiko Epson Corp), Dec. 20, 1991.

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