| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a scanner light source so constituted as to efficiently produce a light beam of a preset frequency. <P>SOLUTION: A target temperature setting means 34 is furnished, and it sets the temperature for producing a light beam of a frequency, the frequency preset on the basis of the temperature-frequency characteristics data of a light emitting diode 1, at the target temperature of a temperature controlling means 33. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
