Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1988-02-11
1990-04-03
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
5116571, 51105EC, 51284E, B24B 700
Patent
active
049128809
ABSTRACT:
A computerized tracing/edging system for the edging of an ophthalmic lens comprises a tracing sub-system for performing a tracing operation with respect to a frame, a pattern or a lens to derive data relating to the dimensions thereof, a storing sub-system for storing the data relating to the dimensions of the traced frame, pattern or lens, and an edging sub-system responsive to the data relating to the dimensions of the traced frame, pattern or lens for edging the ophthalmic lens so as to provide it with dimensions corresponding to the dimensions of the traced frame, pattern or lens. The computerized tracing/edging system can be implemented as a multi-processor system consisting of a first sub-system for performing the tracing operations, a second sub-system for performing the storage operations (as well as data translation procedures for converting the data from one form to another), and a third sub-system for performing the edging operations. Alternatively, the tracing or edging sub-systems can be implemented as single, stand-alone systems having the capabilities described above. The tracing sub-system employs a data sensor to convert traced dimensions to electrical signals, the same data sensor being employed in any of the modes of operation (frame tracing, lens tracing or pattern tracing).
REFERENCES:
patent: 4096884 (1978-06-01), Akaba et al.
patent: 4557076 (1985-12-01), Helbrecht
patent: 4656590 (1987-04-01), Ace
Haddock Fred A.
Rarick Kimber W.
Cobain Optical Industries, Inc.
Kile Bradford E.
Rachuba Maurina
Schmidt Frederick R.
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