Projection display having an angle-selective coating for...

Details Projection display having an angle-selective coating for... Projection display having an angle-selective coating for...

2006-01-31

2006-01-31

Epps, Georgia (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

C359S298000, C359S640000, C359S601000, C353S020000, C353S033000, C353S081000

Reexamination Certificate

active

06992830

ABSTRACT:
A projection display includes a light source, a spatial light modulator that receives a light from the light source, and an angle-selective coating disposed to receive the light beam from the spatial light modulator. The angle-selective coating is oriented at a non-zero inclination angle to the light beam. The angle-selective coating has a higher transmission for light that is incident upon the angle-selective coating at an incidence angle within an acceptance-angle deviation from a design incidence angle, than for light that is incident upon the angle-selective coating at an incidence angle greater than the acceptance-angle deviation from the design incidence angle. The projection display preferably includes a TIR (total internal reflection) prism disposed to reflect a light beam from the light source to the spatial light modulator, and to receive the light beam from the spatial light modulator. The angle-selective coating is preferably buried within the TIR prism.

REFERENCES:
patent: 4745416 (1988-05-01), Horihata
patent: 4969730 (1990-11-01), van den Brandt
patent: 5193028 (1993-03-01), Noguchi
patent: 5452024 (1995-09-01), Sampsel
patent: 6014845 (2000-01-01), Jain et al.
patent: 6023365 (2000-02-01), McDonald
patent: 6078421 (2000-06-01), Davey et al.
patent: 6609798 (2003-08-01), Milinusic et al.
patent: 6758565 (2004-07-01), Cobb et al.

Affiliated with

Also associated with

Rating

Projection display having an angle-selective coating for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Projection display having an angle-selective coating for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projection display having an angle-selective coating for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3549816