System and method for reducing visible speckle in a...

Details System and method for reducing visible speckle in a... System and method for reducing visible speckle in a...

2007-11-30

2011-10-04

Epps, Georgia Y (Department: 2878)

Optical: systems and elements

Diffusing of incident light

C359S028000, C359S290000, C359S199300, C250S234000, C353S020000

Reexamination Certificate

active

08031403

ABSTRACT:
The invention provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a lissajous curve at least partially transverse to the optical path.

REFERENCES:
patent: 4035068 (1977-07-01), Rawson
patent: 4851978 (1989-07-01), Ichihara
patent: 5198837 (1993-03-01), Ikshizaka et al.
patent: 5704700 (1998-01-01), Kappel et al.
patent: 7502160 (2009-03-01), Aksyuk et al.
patent: 2005/0253055 (2005-11-01), Sprague et al.
patent: 2007/0058135 (2007-03-01), Morikawa et al.
patent: 2007/0273794 (2007-11-01), Sprague et al.
Rawson, et al.; Speckle-Free Rear-Projection Screen Using Two Close Screens in Slow Relative Motion; Optical Society of America, vol. 66, No. 11, Nov. 1976; pp. 1290-1294.

Affiliated with

Also associated with

Rating

System and method for reducing visible speckle in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for reducing visible speckle in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reducing visible speckle in a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4253066