Apparatus for and method of obtaining processing information for

Details Apparatus for and method of obtaining processing information for Apparatus for and method of obtaining processing information for

1992-12-21

1994-08-02

Rachuba, M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51101LG, 51284R, B24B 4900

Patent

active

053334124

ABSTRACT:
An eyeglass grinding machine of the present invention measures three-dimensional information on the configuration of an eyeglass frame so as to process lenses on the basis of the information thus measured. The improvement of the invention provides an apparatus for and a method of obtaining processing information for fitting lenses in the eyeglass frame that incorporate a measurement device for the three-dimensional configuration of the eyeglasses frame, including a holder device of the eyeglasses frame, a gauge head and detection device; a first calculation device for calculating a distance between the geometrical centers of both lens frame portions of the eyeglasses frame; an input device for inputting information of a pupillary distance; a second calculation device for calculating an apparent adjustment amount of the optical centers of the lenses; a third calculation device including contact elements to abut against the front and rear surfaces of the lenses; a correction means for correcting errors of the apparent adjustment amount; and a conversion device for converting the results of detection by the detection device into a predetermined form of processing information.

REFERENCES:
patent: 3786600 (1974-01-01), Bloxsom
patent: 4051601 (1977-10-01), Godot
patent: 4737918 (1988-04-01), Langlois et al.
patent: 4945684 (1990-08-01), Wada et al.
patent: 5121550 (1992-06-01), Wood et al.
patent: 5155940 (1992-10-01), Suzuki

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