| 摘要 |
PURPOSE: A laser unit for dermatotherapy is provided to be suitable for curing skin by using two wavelengths generated from a copper bromide(CuBr) medium. CONSTITUTION: A laser resonant cavity includes the copper bromide medium, a discharge electrode, a heater and a glass tube, in which yellow wavelength(578nm) laser and green wavelength (511nm) laser are generated from the copper bromide medium. A power source converting portion includes a high voltage generating circuit generating and supplying a high voltage to the discharge electrode and a heater voltage generating circuit generating and supplying a heater voltage to the heater. A controller controls the high voltage generating circuit to supply the high voltage to the discharge electrode, and controls the heater voltage generating circuit to maintain a temperature of the glass tube within a fixed temperature range.
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