To provide methods for measuring a semifinished blank and for checking a working condition of the same, in the semifinished blank where a coating member is applied to either one of a front surface or a rear surface, capable of calculating a value of a predetermined optic characteristic without removing the coating member and checking whether the working condition is satisfied based on a calculated result.
An amount of prism of a semifinished blank 11 can be calculated based on a measurement of reflecting light at the concave surface side obtained by irradiating a semifinished blank 11 which has a block piece 13 attached to a convex surface side by an alloy 12 with light in a direction from the concave surface side to the convex surface side.
IINUMA YOSHITAKA
KANO TAKUYA
WATANABE HIROAKI
ONO SHINGO
JP2009216717A | 2009-09-24 | |||
JPH10175149A | 1998-06-30 | |||
JP2000292313A | 2000-10-20 | |||
JPH03111702A | 1991-05-13 | |||
JPH11257929A | 1999-09-24 | |||
JP2007225984A | 2007-09-06 | |||
JP2002022599A | 2002-01-23 | |||
JPH05107108A | 1993-04-27 | |||
JPH10500033A | 1998-01-06 | |||
JPH10507825A | 1998-07-28 | |||
JP2009216717A | 2009-09-24 | |||
JPH10175149A | 1998-06-30 | |||
JP2000292313A | 2000-10-20 | |||
JPH03111702A | 1991-05-13 | |||
JPH11257929A | 1999-09-24 | |||
JP2007225984A | 2007-09-06 |