| 摘要 |
PURPOSE:To remove the residual light component, by processing the signal proportional to the signal including the residual light component with two sets of mixers, constant multiplier and differentiation unit. CONSTITUTION:The detected output with residual light characteristics is input to the input terminal 7. This output reaches the mixer 13 through the constant multiplier 10. Further, the output of detector reaches the adder 13 through the loop consisting of the constant multipliers 8 and 9 and differentiation unit 11. The signal rejecting the residual light component is output from the output terminal 14.
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