Optical waveguides – Noncyclindrical or nonplanar shaped waveguide
Reexamination Certificate
2006-08-29
2006-08-29
Bovernick, Rodney (Department: 2874)
Optical waveguides
Noncyclindrical or nonplanar shaped waveguide
C345S175000
Reexamination Certificate
active
07099553
ABSTRACT:
An apparatus and method for generating a lamina of light. The apparatus includes an optically transparent member having an input configured to receive light and one or more facets formed in the optically transparent member. As light enters and travels through the member, a lamina of light is created by the light reflecting off the facets. In one application, the lamina of light is provided in the free space adjacent a touch screen display. When the lamina is interrupted during a data entry operation to the screen, an optical position detection device is used to determine the data input based on the location of the interrupt in the lamina. In various other embodiments, the position and uniformity of the lamina may be controlled by selecting the angle, depth and tilt of a reflective surface of the facets in the optically transparent member.
REFERENCES:
patent: 3584226 (1971-06-01), Lerner
patent: 4068121 (1978-01-01), Bringhurst et al.
patent: 4737626 (1988-04-01), Hasegawa
patent: 4746770 (1988-05-01), McAvinney
patent: 4776661 (1988-10-01), Handa
patent: 5050946 (1991-09-01), Hathaway et al.
patent: 5235193 (1993-08-01), Hurlimann
patent: 5414413 (1995-05-01), Tamaru et al.
patent: 5512943 (1996-04-01), Bahnemann et al.
patent: 5668913 (1997-09-01), Tai et al.
patent: 5786810 (1998-07-01), Knox et al.
patent: 5914709 (1999-06-01), Graham et al.
patent: 6181842 (2001-01-01), Francis et al.
patent: 6351260 (2002-02-01), Graham et al.
patent: 6525677 (2003-02-01), Printzis
patent: 6734929 (2004-05-01), Sugiura et al.
Graham David S.
Lewis Warren
Ma Guolin
Schleuning David A.
Beyer Weaver & Thomas LLP
Bovernick Rodney
Poa Sona, Inc.
Stahl Mike
LandOfFree
Apparatus and method for generating a lamina of light does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for generating a lamina of light, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for generating a lamina of light will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3715910