Patent ID: 6997572
Filing Date: 2006-02-14
Classification: H01H

Abstract:
1. An illumination structure for a pushbutton which operates as a function button in an electronic device, comprising: a pushbutton switch mechanism having a board incorporating an electronic circuit thereon, a metal sheet contact disposed on said board, a light-transmissive pushbutton disposed in an opening defined in a casing of said electronic device for being pressed from outside, said light-transmissive pushbutton having an outer button and a presser connected to said outer button and disposed closer to said board for contacting said metal sheet contact, and a light-emitting element disposed on said board around said presser for applying light to a side surface of said presser, said presser having a conical shape having an upper surface as a bottom surface substantially aligned with a lower surface of said button and a vertex for contacting said metal sheet contact.