Optics: image projectors – Composite projected image – Multicolor picture
Reexamination Certificate
2007-10-23
2007-10-23
Koval, Melissa Jan (Department: 2862)
Optics: image projectors
Composite projected image
Multicolor picture
C353S081000, C353S099000, C359S639000, C348S742000
Reexamination Certificate
active
11466361
ABSTRACT:
A scrolling device with color separation and a projection system incorporating same are disclosed. The scrolling device comprises a scrolling shaft and a plurality of dichroic mirrors that are spirally arranged as screw threads on the scrolling shaft. The scrolling device rotates around predetermined axis, and the dichroic-mirror threads can separate an incident light beams into two or more color light beams, thereby scrolling the positions of these color beams. The scrolling color beams are then transmitted to a light modulating panel in the projection system. Therefore, a single-panel projection system with color scrolling function is achieved.
REFERENCES:
patent: 3841730 (1974-10-01), Karelitz
patent: 4922336 (1990-05-01), Morton
patent: 5604525 (1997-02-01), Kieselbach
patent: 7006163 (2006-02-01), Yamamoto et al.
Greiner Edwin
Koval Melissa Jan
Lapus Theodore
Law Offices of Lai & Assoc. PC
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