LIGHT GUIDES AND LUMINOUS INPUTS HAVING THE SAME
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United States of America Patent
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Issued Date -
Jun 19, 2008
app pub date -
Sep 26, 2007
filing date -
Dec 14, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A kind of luminous input is disclosed. The luminous input includes an input element, a light guide, and a plurality of LEDs. The light guide defines a hole for receiving the input element, and includes a reflection part and a light transmission part around the hole. The reflection part includes a first reflection surface and a second reflection surface opposite each other. The second reflection surface is tilted at an angle relative to the first reflection surface. Light emitted by the LEDs is sequently reflected by the first and second reflection surface, then passes through the light transmission part. The luminous input is low in height and is efficient in using the light.
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