Projection screen

Details Projection screen Projection screen

2011-08-02

2011-08-02

Mahoney, Christopher (Department: 2862)

Optical: systems and elements

Projection screen

Unitary sheet comprising plural refracting areas

C359S459000

Reexamination Certificate

active

07990614

ABSTRACT:
A projection screen is adapted to reflect the projection light generated by a projector. The projection screen includes a light absorbing layer, a light reflection layer connected adjacently to the light absorbing layer, and a light transparent layer. The light transparent layer is disposed on the light absorbing layer and the light reflection layer, and has a total reflection surface, a light emitting surface, and a light incident surface connected adjacently to the total reflection surface. The light incident surface provides a theoretical light convergence point, and the light convergence point and the location of the light reflection layer are in mirror symmetry relative to the total refection surface. The projection light enters into the light transparent layer through the light incident surface for refraction, and travels to the total reflection surface for totally reflection, and then to the light reflection layer for reflecting to the light emitting surface.

REFERENCES:
patent: 3704055 (1972-11-01), Hong
patent: 6842282 (2005-01-01), Kuroda et al.
patent: 7262912 (2007-08-01), Wood
patent: 7538943 (2009-05-01), Shinbo
patent: 7826135 (2010-11-01), Destain et al.
patent: 7835078 (2010-11-01), Ichikawa et al.
patent: 2007/0146876 (2007-06-01), Peterson et al.

Affiliated with

Also associated with

Rating

Projection screen 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 screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projection screen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2676200