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彩色底片分析器是一套模拟印相过程的彩电装置,用来指示相纸正确曝光时的光号数,藉以提高相片质量和制作效率。由于电路系统模拟不完善和相纸中染料Y、M、C相互吸收而引入的色差,可以通过矩阵电路校正到最低限度。 本文着重探讨矩阵电路的设计原则、电路参数计算、试验色样的选取及平均色差的计算方法,并以实际电路计算结果为例,阐明矩阵电路的优化设计方法,使校正后的平均色差值最小。
Color film analyzer is a set of analog printing process of color TV set, used to indicate the correct number of light-exposure photographic paper, in order to improve photo quality and production efficiency. Due to the imperfect simulation of the circuit system and the color difference introduced by the mutual absorption of the dyes Y, M, C in the photographic paper, the matrix circuit can be used to correct the color difference to a minimum. This paper focuses on the design principles of the matrix circuit, circuit parameter calculation, the selection of test samples and the average color difference calculation method. Taking the actual circuit calculation results as an example, the optimization design method of the matrix circuit is expounded, the corrected average color difference Min.