Optical: systems and elements – Projection screen – With reflector or additional screen
Reexamination Certificate
2006-06-06
2006-06-06
Perkey, W. B. (Department: 2851)
Optical: systems and elements
Projection screen
With reflector or additional screen
C359S455000, C359S459000, C359S619000
Reexamination Certificate
active
07057812
ABSTRACT:
A projection screen includes a substrate having at least a first surface, a reflective layer having a first surface and an opposing second surface, and diffusion layer having a first surface defined by a matte finish and an opposing second surface. The second surface of the reflective layer is attached (e.g., via an adhesive) to the first surface of the substrate and the second surface of the diffusion layer is attached (e.g., via an optically transparent adhesive) to the first surface of the reflective layer. The projection screen is preferably flexible and wound around a conventional roller to form a projection screen system. Alternatively, the projection screen may be attached to a rigid substrate. The second surface of the diffusion layer has a preferably smooth finish, but may include desired irregularities to achieve a desired screen directivity performance.
REFERENCES:
patent: 1985460 (1934-12-01), Raven
patent: 2968219 (1961-01-01), Saiia
patent: 3314742 (1967-04-01), Morgan
patent: 3492060 (1970-01-01), Sherwood
patent: 3510197 (1970-05-01), Seki et al.
patent: 3598470 (1971-08-01), Vetter
patent: 3653740 (1972-04-01), Ogura et al.
patent: 3964822 (1976-06-01), Yamashita
patent: 4006965 (1977-02-01), Takada et al.
patent: 4025160 (1977-05-01), Martinez
patent: 4040717 (1977-08-01), Cinque et al.
patent: 4089587 (1978-05-01), Schudel
patent: 4190320 (1980-02-01), Ferro
patent: 4201449 (1980-05-01), Campion et al.
patent: 4232939 (1980-11-01), Kikuchi
patent: 4431720 (1984-02-01), Sugarman
patent: 4792209 (1988-12-01), Laine et al.
patent: 5127722 (1992-07-01), Nishitani
patent: 5148309 (1992-09-01), Yamada et al.
patent: 5361163 (1994-11-01), Matsuda et al.
patent: 5456967 (1995-10-01), Nezu
patent: 5780140 (1998-07-01), Nilsen
patent: 5914825 (1999-06-01), Nishio et al.
patent: 6040941 (2000-03-01), Miwa et al.
patent: 6144491 (2000-11-01), Orikasa et al.
patent: 6163402 (2000-12-01), Chou et al.
patent: 6233095 (2001-05-01), Niwa et al.
Neun Punkt GbR and Wolfgang Schoelermann, “Latest News about Audio-Visual-Presentations (AVP)”, Aug. 22, 2003, pp. 1 and 5, http://www.avp-newsletter.com/avpe3403.htm, CREACT Hamburg, Germany.
Brinkley McNerney et al.
Crilly Daniel C.
Crosby Kevin P.
Cruz Magda
LandOfFree
Reflection-type 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 Reflection-type projection screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflection-type projection screen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3705684