Apparatus for judging whether an uncut lens should be machined or not and lens grinding machine having the same
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United States of America Patent
Stats
-
Oct 20, 1992
Grant Date -
N/A
app pub date -
Oct 26, 1990
filing date -
Oct 30, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for judging whether or not an uncut lens should be machined is provided. The apparatus judges whether or not a lens having a desired lens frame configuration can be obtained from an uncut lens before the lens is subjected to a grinding treatment by a lens grinding machine. The apparatus also judges whether or not an already sucked and attached uncut lens should be machined by judging whether a 'machining interference' caused by a sucking disk sucked and attached to the uncut lens will come in contact with a grinding wheel, and/or whether or not a lens of a desired lens frame configuration can be obtained from the uncut lens before the uncut lens with the sucking disk already sucked and attached thereto is subjected to a grinding treatment. A lens grinding machine incorporating such a judging apparatus is also provided.
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