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Title:
METHOD FOR DETERMINING ORBIT OF GROOVE FORMED AT EDGE OF LENS FOR SPECTACLE FRAME
Document Type and Number:
Japanese Patent JP2000131652
Kind Code:
A
Abstract:

To provide a method for determining the orbits of grooves formed by machining at the edges of lenses to be mounted at a spectacle frame of a 'metal supra' type.

The lenses 20 are adapted to be fitted to rims or frames 11 of the spectacle frame 10. The respective rims or frames 11 have rigid portions 12 and filaments 13 extending from the one-side ends (E1) of the rigid portions 12 to the other ends (E2) thereof. If the lenses are formed in the manner described above, the curvature of the rigid portions 12 may be systematically taken into consideration with respect to the portions (T1) of the required orbits of the grooves corresponding to the rigid portions 12 in question of the spectacle frame 10.


Inventors:
GUILLERMIN LAURENT
Application Number:
JP30112799A
Publication Date:
May 12, 2000
Filing Date:
October 22, 1999
Export Citation:
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Assignee:
ESSILOR INT
International Classes:
B24B9/14; G02C3/00; G02C5/14; (IPC1-7): G02C5/14; G02C3/00
Attorney, Agent or Firm:
Minoru Nakamura (9 outside)



 
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