Static molds – Container-type molding device
Patent
1997-05-08
2000-08-22
Mackey, James P.
Static molds
Container-type molding device
425808, B29D 1100
Patent
active
061059250
ABSTRACT:
A progressive lens mold, a method of making a progressive lens mold, and progressive lenses made using such mold or method. Back faces of progressive molds are preferentially tapered at their edges to reduce prism effects in lenses made using such molds. The tapering is accomplished by removing more of the back face adjacent the near portion vision zone of the mold versus the back face adjacent to the far vision zone of the molds.
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PCT Search Report mailed Dec. 22, 1993.
Carr James S.
Joel Larry H.
Lossman Loren C.
Mackey James P.
Q2100, Inc.
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