| 摘要 |
PROBLEM TO BE SOLVED: To widen the adjustment range of the light output of combined laser light in combined laser light irradiation equipment. SOLUTION: The bar code 91 of a recording medium 90 is read by a target value inputting section 25 to obtain a target value for the light output of combined laser light Le. If the target value is below a predetermined reference value, a light output control unit 30 picks up two semiconductor lasers 10a and 10b out of a plurality of semiconductor lasers 10a, 10b, etc. Then the selected semiconductor lasers 10a and 10b are operated at a current not lower than a lasing threshold current nor more than a maximum rated current while non-selected semiconductor lasers 10c, 10d, etc. are kept from operating, to make the light output of the combined laser light Le which has been emitted from the semiconductor lasers 10a and 10b and then combined by a light combining section 15 into the target value. Then, the combined laser light Le is irradiated on the recording medium 90 via a combined laser light irradiation section 20. COPYRIGHT: (C)2006,JPO&NCIPI |
