Shared light pipe for a message indicator and light sensor

Details Shared light pipe for a message indicator and light sensor Shared light pipe for a message indicator and light sensor

2008-04-01

2008-04-01

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S039000, C455S566000, C250S227110

Reexamination Certificate

active

11187867

ABSTRACT:
A shared light pipe is set forth for transmitting light generated by a message waiting LED in a mobile communication device, in one direction, and transmitting ambient or surrounding light, in an opposite direction, to a light sensor for controlling a display backlight of the device. The light pipe includes an elongated first portion having a first end for receiving and transmitting light and external surfaces for reflecting light there through via total internal reflection (TIR), a second portion coextensive with the first portion for outputting light received at the first end and reflected through the first portion, and a second branch coextensive with the first portion for receiving and transmitting light for output at the first end.

REFERENCES:
patent: 3964824 (1976-06-01), Dixon et al.
patent: 4576436 (1986-03-01), Daniel et al.
patent: 5963687 (1999-10-01), Schneider et al.
patent: 6687515 (2004-02-01), Kosaka
patent: 2004/0013372 (2004-01-01), Gancarcik et al.
patent: 2004/0208632 (2004-10-01), Dietz et al.
patent: 44 11 860 (1995-10-01), None
patent: 1 303 113 (2003-04-01), None
patent: 1336883 (2003-08-01), None
patent: 1253447 (2004-10-01), None
patent: 1 696 259 (2007-08-01), None
patent: 60059548 (1985-04-01), None
patent: 05218581 (1993-08-01), None
patent: 07203124 (1995-08-01), None
patent: 2000-292631 (2000-10-01), None
patent: 2001215350 (2001-08-01), None
patent: WO 01/05126 (2001-01-01), None

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