04125329 is referenced by 73 patents and cites 6 patents.

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 respective light beams to the non-inverting and inverting inputs, respectively, of the integrator amplifier. Moreover, a compensating circuit provides for compensation of the colorimeter output signals with respect to reflectance error encountered in the optics portion of the colorimeter.

Title
Tristimulus colorimeter
Application Number
5/721108
Publication Number
4125329
Application Date
September 7, 1976
Publication Date
November 14, 1978
Inventor
William H Conaway
Paris
OH, US
Park French
Aurora
OH, US
Agent
Maky Renner Otto & Boisselle
Assignee
Sterndent Corporation
NY, US
IPC
G01J 3/48
G01J 3/46
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