Apparatus for making ophthalmic lenses

Details Apparatus for making ophthalmic lenses Apparatus for making ophthalmic lenses

1992-05-18

1994-02-22

Nguyen, Khanh

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

425127, 4251291, 425171, 425141, 425150, 4251744, 425546, 425555, 425808, 425812, B29C 4580, B29D 1100

Patent

active

052882217

ABSTRACT:
An apparatus for mating a finished ophthalmic lens includes a pre-manufactured lens or lens wafer as a part of a mold for making the finished lens. A polymerizable lens material is injected between the lens or lens wafer and a conventional mold member and a trio of indexers are used to rotate the conventional mold member relative to the lens wafer, to adjust the spatial relationship between the conventional mold member and the lens or lens wafer, and to control the angular relation between them. The assembly is subjected to irradiation and the radiation cures the polymerizable lens material and fuses it to the lens wafer so that the lens or lens wafer becomes an integral part of the finished lens. The apparatus produces a finished lens in less than one hour.

REFERENCES:
patent: 3902693 (1975-09-01), Crandon et al.
patent: 3971841 (1976-07-01), Rubinstein
patent: 4113224 (1978-09-01), Clark et al.
patent: 4615847 (1986-10-01), Howden
patent: 4640805 (1987-02-01), Neefe
patent: 4702574 (1987-10-01), Bawa
patent: 4714232 (1987-12-01), Blot
patent: 4728469 (1988-03-01), Danner et al.
patent: 4842782 (1989-06-01), Portney et al.
patent: 5005633 (1991-04-01), Mathews et al.
patent: 5028358 (1991-07-01), Blum
patent: 5034166 (1991-07-01), Rawlings et al.
patent: 5137441 (1992-08-01), Fogarty
patent: 5154861 (1992-10-01), McBrierty et al.
patent: 5188650 (1993-02-01), Nomura

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