Illuminating knob for switch and manufacturing method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 4, 1999
Grant Date -
N/A
app pub date -
Jan 31, 1997
filing date -
Jan 31, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A main body of an illuminating knob is formed as a base made of a transparent resin. An undercoat layer and a topcoat layer are applied on a peripheral surface of the base. A pattern inside eliminating portion is formed in a shape of an indicating pattern as a marked portion by a laser etching or a partial exfoliation of the topcoat layer on the bottom portion. By passing light from a light source provided inside of the knob through the marked portion, an indication via passing through light is achieved.
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Cited Art Landscape
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