Contact pattern observation apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 21, 1987
Grant Date -
N/A
app pub date -
Mar 30, 1984
filing date -
Mar 31, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An object contact pattern observation apparatus includes a prism body having a detection portion and a light absorbing portion located in such positions that any light transmitted through the prism body when no object is in contact with the detection portion. When an object is in contact with the detection portion, light from a light source radiated through the prism body to illuminate the detection portion is reflected therefrom as a visible contact image. The visible contact image is focused on a light recording device by a lens.
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Cited Art Landscape
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