Displaying instrument and luminous pointer
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United States of America Patent
Stats
-
Mar 20, 2007
Grant Date -
Dec 8, 2005
app pub date -
May 26, 2005
filing date -
May 27, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A luminous pointer of a displaying instrument has a pointer body with a light emitting area that is divided into subsections with prisms. The subsections are illuminated at different timing. A light emitting circuit, including light emitting diodes (LEDs) for illuminating the light emitting area, and resistors and zener diodes for driving the LEDs, is arranged in a boss of the pointer body. With this configuration, an increase in weight of the pointer body, especially at a tip of the pointer body, is less likely to occur.
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Cited Art Landscape
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