Scrolling unit, color illuminating system, and projection...

Details Scrolling unit, color illuminating system, and projection... Scrolling unit, color illuminating system, and projection...

2006-08-15

2006-08-15

Perkey, W. B. (Department: 2851)

Optics: image projectors

Particular condenser

C353S031000, C353S084000, C359S197100, C359S203100, C359S210100, C348S742000

Reexamination Certificate

active

07090359

ABSTRACT:
A scrolling unit for forming a color image through scrolling, and a color illuminating system and a projection system using the scrolling unit. The scrolling unit includes a first spiral lens disk, a second spiral lens disk, and a glass rod. The first spiral lens disk includes a plurality of cylindrical lens cells arranged in a spiral pattern and can be rotated. The second spiral lens disk is installed facing the first spiral lens disk and can be rotated at the same speed as the first spiral lens disk. The projection system includes a light source, an optical splitter for splitting light into light beams having different colors, and a scrolling unit that scrolls the light beams by periodically changing paths on which the light beams proceed. Also included is a light valve for forming an image, and a projection lens unit for enlarging and projecting the image.

REFERENCES:
patent: 6288815 (2001-09-01), Lambert
patent: 6334685 (2002-01-01), Slobodin
patent: 6765705 (2004-07-01), Ouchi
patent: 6877860 (2005-04-01), Cho et al.
patent: 6921171 (2005-07-01), Lee et al.
patent: 2001/0038483 (2001-11-01), Lambert
patent: 2002/0057402 (2002-05-01), Um
patent: 2004/0021944 (2004-02-01), Kim et al.
patent: 2004/0233342 (2004-11-01), Kim et al.
patent: 2005/0012904 (2005-01-01), Kim et al.
patent: 0 798 587 (1997-10-01), None
patent: 1 359 452 (2003-11-01), None
patent: 08-190080 (1996-07-01), None
patent: 10-62775 (1998-03-01), None
patent: 2002-40416 (2002-02-01), None
patent: 2002-328332 (2002-11-01), None
patent: 2002-541512 (2002-12-01), None

Affiliated with

Also associated with

Rating

Scrolling unit, color illuminating system, and projection... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scrolling unit, color illuminating system, and projection..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scrolling unit, color illuminating system, and projection... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3687826