Apparatus for perforating contact lenses

Details Apparatus for perforating contact lenses Apparatus for perforating contact lenses

1975-01-16

1976-07-27

Truhe, J. V.

Electric heating

Metal heating

By arc

51216LP, B23K 2700

Patent

active

039719103

ABSTRACT:
Apparatus for perforating contact lenses, including a laser, a hollow motor driven shaft connected to a vacuum pump for centering and holding the contact lens under the laser beam, crank means for adjusting the vertical and horizontal position of the contact lens with respect to the laser beam and automatic means for rotating said lens under said beam synchronously with the energization of said laser to effect production of a plurality of holes on said lens.

REFERENCES:
patent: 2444531 (1948-07-01), Richardson
patent: 3084928 (1963-04-01), Opitz
patent: 3382343 (1968-05-01), Muncheryan
patent: 3528326 (1970-09-01), Kilmer et al.
patent: 3619550 (1971-11-01), Matthews
H. S. Silvus, Jr. et al., "Precise Perforations Every Time," The Tool and Manufacturing Engineer, 11/1969, pp. 46-49.

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