Lens periphery processing apparatus, method for obtaining processing data, and lens periphery processing method

- Nidek Co., Ltd.
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Claims

2. A lens periphery processing apparatus according to claim 1, which is connected, through an interface, to an eyeglasses frame configuration measurement device for three-dimensional measurement of the lens frame portions of the eyeglasses frame.

4. A lens periphery processing apparatus according to claim 3, wherein said computing means comprise means for deriving a difference between the peripheral length of the locus of the determined tapered edge curve and the peripheral length in said three-dimensional lens frame portion information, and obtaining a correction amount of the position of the tapered edge for correcting said peripheral length difference.

Referenced Cited
U.S. Patent Documents
4656590 April 7, 1987 Ace
4944585 July 31, 1990 Mizuno
4945684 August 7, 1990 Wada et al.
5053971 October 1, 1991 Wood et al.
5144561 September 1, 1992 Soper
5148637 September 22, 1992 Byron
Foreign Patent Documents
0426551A2 May 1991 EPX
Patent History
Patent number: RE35898
Type: Grant
Filed: Aug 20, 1996
Date of Patent: Sep 15, 1998
Assignee: Nidek Co., Ltd. (Gamagori)
Inventors: Ryoji Shibata (Toyokawa), Masahiko Kobayashi (Aichi-ken), Yukinobu Ban (Nishio), Hirokatu Obayashi (Aichi-ken)
Primary Examiner: Timothy V. Eley
Assistant Examiner: Derris H. Banks
Law Firm: Nikaido Marmelstein Murray & Oram LLP
Application Number: 8/700,021
Classifications
Current U.S. Class: Computer Controlled (451/5); Glass Or Stone Abrading (451/41)
International Classification: B24B 4900; B24B 5100;