| 摘要 |
PURPOSE:To execute high-grade operations at a high speed with simple constitution by using light to execute operations. CONSTITUTION:An incident luminous flux 11 consists of three luminous fluxes having intensities proportional to C (cyan), M (magenta), and Y (yellow) signals, and a voltage where high frequencies f0, f1, f2, and f3 modulated on the basis of I, C, M, and Y signals respectively are multiplexed is applied to a piezoelectric element 13. Consequently, exit luminous fluxes 14a-14d each of which consists of three luminous fluxes are discharged from an acoustooptic (A/O) element 12, and these luminous fluxes are made incident on photodetectors 16-1-16-12 arranged in a matrix through an ND filter 15. Outputs of photodetectors 16-1, 16-2, 16-4, 16-5, 16-7, and 16-10 are added by an adder 17a, and outputs of photodetectors 16-3, 16-6, and 16-9 are added by an adder 17b, and outputs of these adders are subjected to subtraction in a subtractor 18 to obtain an output color signal. Connections of the ND filter 15 and adders are changed to obtain another output color signal. |
