| 摘要 |
In an electron beam recorder for recording pictures on a sensitive medium by scanning the sensitive medium with an electron beam, the electron beam recorder is disclosed which includes in the signal supplying circuit thereof a contrast compensating circuit consisting of delay means for providing the picture signal to be recorded with predetermined delay times and a non-adder-mixer for combining the signals obtained from the delay means with the original picture signal, wherein the exposure period by the electron beam is controlled to be shortened by means of the contrast compensating circuit.
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