Blocking system for prescription lenses

Details Blocking system for prescription lenses Blocking system for prescription lenses

1993-02-12

1995-10-31

Kisliuk, Bruce M.

Abrading

Work holder

Clamp

451460, 451385, 451390, 451 42, B24B 4106

Patent

active

054624754

ABSTRACT:
An adhesive blocking system, for generating and for fining and polishing eyeglass lenses, utilizes a collar which slides over and engages a lens block, which lens block is secured to a lens blank by a relatively thick adhesive pad, to uniformly transfer pressure from the cylinder machine to the lens blank without deforming the adhesive pad, which deformation adversely affects the optics. In this manner, a lens blank is blocked only once for both generating and fining and polishing. In addition, the environmental risks and heating effects of current solder blocking systems are avoided.

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