发明名称 APPARATUS FOR COMPUTING COLOR BALANCE CHARACTERISTICS AND PREPARING IMPROVED COLOR PRINTS
摘要 A colorimeter which is adapted for accurately comparing an unknown light with a light of standard color to enable the adjustment or compensation of the unknown color to produce a desired effect in photography or the like. One colorimeter is on a universal mounting and has a filter support spaced from a comparing surface to direct the unknown light with filter compensation along an axis unto a small central mirror mounted at an angle to the light axis on the comparing surface. A source of known light of controlled and constant color and intensity is within the colorimeter and illuminates the comparing surface around the small mirror. The disclosure includes alternate embodiments and unique methods of utilizing the colorimeter.
申请公布号 US3690763(A) 申请公布日期 1972.09.12
申请号 USD3690763 申请日期 1967.02.27
申请人 ROBERT W. MITCHELL 发明人 ROBERT W. MITCHELL
分类号 G03B27/73;G03B33/10;(IPC1-7):G03B27/24 主分类号 G03B27/73
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