Process and machine for coating ophthalmic lenses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 4, 2001
Grant Date -
N/A
app pub date -
Apr 4, 2000
filing date -
Nov 8, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a process and machine for coating a surface of an ophthalmic lens, the lens is manually loaded by the operator to a wash/dry station within an enclosure of the coating machine. Thereafter, the machine computer controls the entire process. The machine is closed to minimize the introduction of external contaminates into the machine. Positive pressure and filtration of air is initiated in the enclosure before washing the lens. The loaded lens is washed and dried at the wash/dry station. The dried lens is transferred to a coating station within the enclosure and coated. The coated lens is transferred to a curing oven within the enclosure and cured. The cured lens is then discharged from the curing oven and the machine for collection by the operator. The machine can simultaneously process three lenses, one in the wash/dry/coat section, one in the cure section and one at a pick-off station between the wash/dry/coat and cure sections of the machine. A coated and cured lens can be produced in approximately sixty seconds.
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