Lens periphery processing apparatus, method for obtaining processing data, and lens periphery processing method
Number of patents in Portfolio can not be more than 2000
United States of America
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Sep 20, 1994
Grant Date -
N/A
app pub date -
Aug 20, 1996
filing date -
Feb 4, 1992
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus and a method for processing lens peripheries which allow lenses to be properly fitted in a frame, i.e., which processes lenses with high dimensional accuracy. For this purpose, the lens periphery processing apparatus and method are designed to comprise an input device for inputting the configuration of lens frame portions of the eyeglasses frame which is a result of three-dimensional measurement, a calculation device for deriving peripheral lengths of the lens frame portions from the three-dimensional lens frame portion configuration inputted by the input device, a tapered edge curve determining device for determining a curve .?.value.!. defined by the locus of the tapered edge of each lens, and a computing device for computing the locus of the tapered edge of each lens which substantially coincides with the peripheral length of the associated lens frame portion which is obtained by the calculation device.
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