Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1992-06-16
1993-01-26
Meislin, D. S.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
5116571, 51105LG, 51124L, B24B 4902, B24B 5100
Patent
active
051813459
ABSTRACT:
A lens grinding apparatus is capable of generating, in a lens blank, a power curve less than three diopters and having both a base characteristic and a cross curve characteristic. A plate is pivotably mounted on a base means, a first slide is slidably mounted on the plate, a second slide is pivotably mounted on the first slide, and a tool is mounted on the second slide for rotation about a tool axis of rotation. During a sweep of the tool across a lens blank, the position of the tool relative to the lens blank is continuously sensed to control a micro-processor. Under the control of the micro-processor, the first slide is continuously slid along the plate, and the second slide is continuously pivoted about an axis relative to the first slide. This is performed so that the sweep radius and the real head angle of the tool are continually changed in a manner maintaining a constant radius of curvature of the curve, and a constant effective head angle of the tool.
REFERENCES:
patent: 2806327 (1957-09-01), Coburn
patent: 3289355 (1966-12-01), Coburn et al.
patent: 3492764 (1970-02-01), Dalton
patent: 3900971 (1975-08-01), Brueck
patent: 4178720 (1979-12-01), Hashimoto
patent: 4535566 (1985-08-01), Soper et al.
patent: 4535666 (1985-08-01), Fiori et al.
patent: 4908997 (1990-03-01), Field, Jr. et al.
patent: 4947715 (1990-08-01), Council, Jr.
Coburn Optical Industries Inc.
Meislin D. S.
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