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Two point power control for dual laser diodes using microprocessor based controllers
Two point power control for dual laser diodes using microprocessor based controllers
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机译:使用基于微处理器的控制器对双激光二极管进行两点功率控制
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摘要
A method for digitally controlling power from dual laser diodes in a system that forms a plurality of scan lines in a transverse direction across the width of a photosensitive member by reflecting modulated beams from a plurality of facets of a rotating polygon by detecting the beginning of a scan line and providing a start of scan (SOS) signal representing the detection. Power is digitally controlled from the laser diodes by controlling the power from each of the laser diodes for video ON exposure control and controlling the power from each of the laser diodes for video OFF bias control in order for the bias control to enable constant exposure power during SOS detection.
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