Abrading – Precision device or process - or with condition responsive... – Computer controlled
Patent
1997-10-31
2000-04-18
Rose, Robert A.
Abrading
Precision device or process - or with condition responsive...
Computer controlled
451 43, 451256, B24B 914
Patent
active
060508779
ABSTRACT:
An eyeglass lens grinding machine for grinding the periphery of a lens to fit into an eyeglass frame includes a lens rotating section which holds and rotates the lens to be processed, a configuration data inputting section for entering the configuration data on the eyeglass frame or a template therefor, a layout data inputting section for entering data to be used in providing a layout of the lens corresponding to the eyeglass frame, a processing data calculating section for calculating processing data on the basis of the data entered by the configuration data inputting section and the layout data inputting section, a rotational speed varying section which, in at least a portion of the grinding process controls variably the rotational speed of the lens rotating section in accordance with the amount of processing as relative to the angle of rotation, and a control section for controlling to grind the lens on the basis of the processing data obtained by the processing data calculating section. The eyeglass lens grinding machine can shorten the time for processing lenses sufficiently to increase the processing efficiency while ensuring highly precise processing.
REFERENCES:
patent: 4912880 (1990-04-01), Haddock et al.
patent: 4945684 (1990-08-01), Wada et al.
patent: 5074079 (1991-12-01), Park
patent: 5138770 (1992-08-01), Matsuyama
patent: 5333412 (1994-08-01), Matsuyama
patent: 5347762 (1994-09-01), Shibata et al.
Obayashi Hirokatsu
Shibata Ryoji
Nidek Co. Ltd.
Rose Robert A.
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