Encoder with a light emitting editing wheel
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United States of America Patent
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-
Jan 24, 1995
Grant Date -
N/A
app pub date -
Nov 3, 1993
filing date -
Nov 3, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An encoder with a light emitted editing wheel comprises an editing wheel defines a wheel body and a hole in its middle portion. The editing wheel is made from transparent material, such glass, acrylic etc. The editing wheel is mounted on a shaft member and can be actuated to rotate thereon via suitable actuating means. A plurality of light focusing means being disposed along the circumference of the editing wheel. A light receiving means is provided radially on the wheel body. The light focusing means is interconnected with the light receiving means and capable of focusing a light source transmitted from the light receiving means into a plurality of light point. A light source is disposed at a perpendicular position above the editing wheel. The light source is capable of sending a light to the light receiving means of the editing wheel. And a sensor means is disposed adjacent to the light focusing means. A pair of light detecting means are provided at the sensor means thereon. The light detecting means is capable of sending an active signal as a light point is received thereon.
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Cited Art Landscape
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