Holding device for cutting an ophthalmic lens

Details Holding device for cutting an ophthalmic lens Holding device for cutting an ophthalmic lens

1994-06-08

1996-05-28

Rachuba, Maurina T.

Turning

Work driver

82 15, 279 5, B23B 3100, B23B 522

Patent

active

055200788

ABSTRACT:
A holding device for cutting an ophthalmic lens includes a holding member which has a spherical sliding surface. A support member is provided with a spherical receiving surface which slidably supports the spherical sliding surface of the holding member. In addition, a fixing assembly is provided for adjustably positioning the lens holding member with respect to the support member. The fixing assembly includes a guide member which is rotatable about a support center axis, with the guide member including an eccentric guide hole, such that pins disposed between the guide hole and an extension of the lens holding member move (or adjust the position of) the lens holding member in response to rotation of the guide member. Rotation of the guide member thus results in sliding movement of the lens holding member with respect to the support member to thereby position the holding member with respect to the support member. A jig can be associated with the lens holding member, with the jig including a spherical surface having a spherical center which coincides with the spherical center of the spherical sliding surface of the lens holding member.

REFERENCES:
patent: 2456776 (1948-12-01), Faust
patent: 3544117 (1970-12-01), Bingham
patent: 3962937 (1976-06-01), Miller
patent: 4277916 (1981-07-01), Buhler
patent: 5195407 (1993-03-01), Takeno et al.

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