Abrading – Precision device or process - or with condition responsive... – Computer controlled
Reexamination Certificate
2009-03-30
2011-10-18
Nguyen, Dung Van (Department: 3723)
Abrading
Precision device or process - or with condition responsive...
Computer controlled
C451S008000, C451S043000
Reexamination Certificate
active
08038507
ABSTRACT:
An eyeglass lens processing apparatus includes: an edge position detector which detects front and rear edge positions of an eyeglass lens based on target lens shape data; a bevel locus setting unit which includes: a) a provisional bevel locus calculator which obtains a provisional bevel locus by obtaining a bevel curve substantially equal to a frame curve; b) a nose-side bevel position determining unit which determines a corrected bevel apex position at a nose-side edge position; c) an ear-side bevel position determining unit which determines a corrected bevel apex position at an ear-side edge position; and d) a corrected bevel locus calculator which obtains a corrected bevel locus which has a curve value equal to the bevel curve; and a processing controller which obtains beveling information based on the corrected bevel locus and controls an operation of the apparatus according to the beveling data.
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European Search Report dated Jul. 17, 2009.
Nguyen Dung Van
Nidek Co. Ltd.
Sughrue & Mion, PLLC
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