Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2007-03-13
2007-03-13
Bahta, Kidest (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S159000, C451S005000
Reexamination Certificate
active
10548466
ABSTRACT:
The invention relates to a method for estimating the angular offset between a rotating radial axis linked to a glass which is to be ground and a reference rotating radial axis which can be applied to a grinding machine for ophthalmic glasses. Said method comprises the following steps: a glass-calibrator is ground, whereby a radial axis linked to the glass is previously made by tracing according to a control rule corresponding to the form of the theoretical finished glass-calibrator whereby the theoretical inclination thereof is known for a reference part of the contour thereof in relation to said radial reference axis; said image (31AI, YI) is analyzed in order to measure the real inclination (I) of the image (33AI) of the reference part (33A) in relation to the image (YI) of the pattern; the angular offset is calculated. The invention also relates to the use of said estimation method in order to calibrate the grinder. and to a device for carrying out said calibration method.
REFERENCES:
patent: 6332827 (2001-12-01), Gottschald et al.
patent: 6722944 (2004-04-01), Akiyama et al.
patent: 6813536 (2004-11-01), Gottschald
patent: 2 771 665 (1999-06-01), None
Bahta Kidest
Briot International
Wenderoth , Lind & Ponack, L.L.P.
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