Illumination – Edge lighted panel – Light source
Reexamination Certificate
2005-08-16
2005-08-16
O'Shea, Sandra (Department: 2875)
Illumination
Edge lighted panel
Light source
C362S554000, C362S560000, C362S089000, C362S240000, C362S245000, C362S311040, C362S330000, C362S800000
Reexamination Certificate
active
06929391
ABSTRACT:
A light guide panel is disclosed. The panel comprises a plate for dispersing light and at least one light-emitting diode (LED) coupled to the plate for providing the dispersed light. When the panel is coupled to a keyboard, the at least one LED is under a portion of the keyboard such that when the at least one LED is illuminated, the light from the LED does not distract a user. Accordingly, by strategically placing LEDs within the panel and providing the LEDs under appropriate portions of the keyboard, the device utilizing the keyboard can be smaller than when a conventional light guide panel is utilized. In addition, a further improvement in illumination is provided when a mechanism is provided which reflects light escaping from the edges of the panel back into the panel.
REFERENCES:
patent: 5295216 (1994-03-01), Halter
patent: 6322229 (2001-11-01), Chan et al.
patent: 6361180 (2002-03-01), Iimura
patent: 6364497 (2002-04-01), Park et al.
patent: 6402335 (2002-06-01), Kalantar et al.
patent: 6498631 (2002-12-01), Natsuyama
patent: 6513943 (2003-02-01), Fukuyoshi
patent: 2003/0058632 (2003-03-01), Maeda et al.
patent: 2004/0008505 (2004-01-01), Chiang
patent: 2004/0017688 (2004-01-01), Liu
Apple Computer Inc.
O'Shea Sandra
Payne Sharon
LandOfFree
Light guide panel and method of use does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light guide panel and method of use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light guide panel and method of use will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3517164