Optical encoder apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 26, 1980
Grant Date -
N/A
app pub date -
Jun 26, 1978
filing date -
Jun 26, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is an encoder assembly employing a single radiant energy source mounted oppositely disposed from two sensors. A shutter having two distinct leading edges is mounted for movement between the source and the sensors. One edge is aligned to interrupt the optical path between the source and one sensor and the other edge is aligned to interrupt the path between the source and the other sensor. The housing for mounting the sensors includes narrow optical apertures to provide sharp signal cut-off and widened slots below the apertures to prevent wicking of potting material into the optical apertures.
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