A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
3/112
A61F 2/16 (2006.01) C03B 23/037 (2006.01) C03B 23/203 (2006.01)
Patent
CA 1082401
Abstract of the Disclosure Optical sections (lenses) of pseudophakoi having tangential holes are produced without drilling operations. A preform of lens material is drawn with e bedded acid soluble rods and/or openings corresponding in diametral size and relative juxtaposition to the size, shape and locations of holes needed in a lens, a lens blank is cut from the drawn preform and portions of rods remaining therein are etched away prior to or following final edging and surface finishing of the lens blank.
271027
American Optical Corporation
Macrae & Co.
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