Semiconductor laser device having a stabilized output beam
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United States of America Patent
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Feb 22, 1983
Grant Date -
N/A
app pub date -
May 6, 1980
filing date -
May 8, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A semiconductor laser device in which a thermosensitive element exhibiting a resistance variation with temperature is installed at a location more faithfully transmitting the temperature of a semiconductor laser element and the thermosensitive element is connected to a circuit for taking out the output from a photodetector receiving the light from the laser element so that, when a wavelength fluctuation is caused by a temperature variation, information is fed back so that a required quantity of light corresponding to that wavelength is obtained, whereby an optimal quantity of light may always be maintained, and an image recording apparatus using the same.
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