G - Physics – 01 – J
Patent
G - Physics
01
J
73/56, 73/57
G01J 3/08 (2006.01) G01J 3/51 (2006.01) H03M 1/00 (2006.01) G01J 3/02 (2006.01)
Patent
CA 1086981
In re application of Park French and William H. Conaway For: "Improved Tristimulus Colorimeter" ABSTRACT OF THE DISCLOSURE A tristimulus colorimeter employs a multiplexed dual slope integrator digital voltmeter wherein unknown and reference light beams are compared by sequentially applying unknown and reference electrical signals representative of the two respect- ive light beams to the non-inverting and inverting inputs, re- spectively, of the integrator amplifier. Moreover, a compensating circuit provides for compensation of the colorimeter output sig- nals with respect to reflectance error encountered in the optics portion of the colorimeter.
286162
Conaway William H.
French Park
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Sterndent Corporation
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