Unit for searching for a lost contact lens
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United States of America Patent
Stats
-
Feb 23, 1993
Grant Date -
N/A
app pub date -
Aug 8, 1991
filing date -
Aug 8, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To let one confirm the location of a contact lens which has been lost when one has intended to apply it to or remove it from the eyeball, a polarizing filter is used. The surface or side surface of a contact lens is coated with a polarizing filter so that when the contact lens has been lost, the location of the polarizing filter that is coated on the contact lens is allowed to be confirmed easily through a polarizing plate.
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