Lenticular lens, light-diffusing sheet, and projection screen

Details Lenticular lens, light-diffusing sheet, and projection screen Lenticular lens, light-diffusing sheet, and projection screen

2006-06-28

2010-06-29

Mahoney, Christopher (Department: 2862)

Optical: systems and elements

Projection screen

Unitary sheet comprising plural refracting areas

C359S626000

Reexamination Certificate

active

07746554

ABSTRACT:
A lenticular lens comprises multiple convex unit lenses, two sides of each unit lens being curved surfaces gradually spreading outwardly from the upside (plane of emergence) to the base (plane of incidence) of the unit lens, and these unit lenses are disposed on a base film in parallel with each other. The acute angle θ between a tangent to two curves corresponding to the two sides of the unit lens on its section vertical to the longer direction and a line parallel to the upside (or the base) of the unit lens is in a range represented by the following inequality:in-line-formulae description="In-line Formulae" end="lead"?139(d/p)3−176(d/p)2+78(d/p)+74.4 >θ>346(d/p)3−469(d/p)2+219(d/p)+45.0in-line-formulae description="In-line Formulae" end="tail"?where d is the length of half of the distance between the two curves, and p is the pitch at which the unit lenses are disposed.

REFERENCES:
patent: 6822792 (2004-11-01), Goto
patent: 6995907 (2006-02-01), Osawa et al.
patent: 7180664 (2007-02-01), Goto
patent: 7453639 (2008-11-01), Katsura
patent: 7474463 (2009-01-01), Katsura et al.
patent: 62-260131 (1987-11-01), None
patent: 09-230507 (1997-09-01), None
patent: 2004-004148 (2004-01-01), None
patent: 2004-294465 (2004-10-01), None

Affiliated with

Also associated with

Rating

Lenticular lens, light-diffusing sheet, and 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 Lenticular lens, light-diffusing sheet, and projection screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lenticular lens, light-diffusing sheet, and projection screen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4248395