Lens shape measuring apparatus

Details Lens shape measuring apparatus Lens shape measuring apparatus

1998-12-18

1999-11-16

Oen, William

Abrading

Abrading process

Glass or stone abrading

B24B 100, B24B 719

Patent

active

059847638

ABSTRACT:
A lens shape measuring apparatus is provided which comprises lens rotating shafts (16, 17) for rotatably holding an uncut lens, a feeler (63, 219, 220) disposed in contact with a working locus of the front or rear surface of the lens, and a calculation/control circuit (100) for detecting a difference in surface level of the lens from a change in data measured by the feeler (63, 219, 220) and controlling the contact of the feeler with the lens.

REFERENCES:
patent: 5716256 (1998-02-01), Mizuno et al.
patent: 5803793 (1998-09-01), Mizuno et al.
patent: 5895314 (1999-04-01), Kitao et al.

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