Electric heating – Metal heating – By arc
Reexamination Certificate
2011-08-23
2011-08-23
Evans, Geoffrey S (Department: 3742)
Electric heating
Metal heating
By arc
C264S400000, C264S482000
Reexamination Certificate
active
08003915
ABSTRACT:
A system and method for inscribing marks, that will remain non-discernable after tinting, on materials in general, and on plastic ophthalmic lenses in particular. The system uses a laser, which typically performs a heating-type inscription process, such as by use of a CO2laser. In accordance with a preferred embodiment of the present invention, there is provided an apparatus for producing laser inscription on materials, including laser inscription apparatus for inscribing inscriptions on a surface of the materials, and apparatus for treating a zone of the surface that was affected by the laser inscription beam, to prevent it from absorbing excessive dye relative to other zones, wherein the inscriptions remain non-discernable after applying the dye.
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Agmon Pinchas
Assaf Dan
Evans Geoffrey S
Hopkins Susanne M.
Klima William L.
Laserop Ltd.
The Nath Law Group
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