Invention Application
- Patent Title: Light guide panel and method of use
- Patent Title (中): 导光板及使用方法
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Application No.: US10622266Application Date: 2003-07-17
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Publication No.: US20050024843A1Publication Date: 2005-02-03
- Inventor: Steven Hotelling
- Applicant: Steven Hotelling
- Main IPC: F21V8/00
- IPC: F21V8/00 ; F21V7/04

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.
Public/Granted literature
- US06929391B2 Light guide panel and method of use Public/Granted day:2005-08-16
Information query