Illumination optical unit employing dichroic mirror wheel...

Details Illumination optical unit employing dichroic mirror wheel... Illumination optical unit employing dichroic mirror wheel...

2005-03-22

2005-03-22

Adams, Russell (Department: 2851)

Optics: image projectors

Color filter

C353S031000, C353S099000

Reexamination Certificate

active

06869189

ABSTRACT:
An illumination optical unit and an image display system including the illumination optical unit. The illumination optical unit comprises a light source which emits light and a dichroic mirror wheel, which includes a plurality of dichroic mirrors, each of which is divided into at least three segments, to sort out at least three color light beams from light incident from the light source and to reflect the light beams as the mirror wheel is rotated by a motor. The image display system comprises the illumination optical unit; an image optical unit which modulates light incident from the illumination optical unit to form an image; and a projection optical unit which projects light from the image optical unit onto a screen. Since light is temporally and spatially divided, light loss is reduced and a high resolution of an image is accomplished.

REFERENCES:
patent: 5159485 (1992-10-01), Nelson
patent: 5633755 (1997-05-01), Manabe et al.
patent: 6020940 (2000-02-01), Ishikawa et al.
patent: 6219111 (2001-04-01), Fukuda et al.
patent: 6334685 (2002-01-01), Slobodin
patent: 6450649 (2002-09-01), De Vaan
patent: 6491396 (2002-12-01), Karasawa et al.
patent: 1024670 (2000-08-01), None
patent: 1052856 (2000-11-01), None
patent: 1280360 (2003-01-01), None
patent: 2000-199928 (2000-07-01), None
patent: WO0172049 (2001-09-01), None

Affiliated with

Also associated with

Rating

Illumination optical unit employing dichroic mirror wheel... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Illumination optical unit employing dichroic mirror wheel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illumination optical unit employing dichroic mirror wheel... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3385975