| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a front monitoring optical pickup device which can adjust the amount of light received by an optical output monitor with a simplified configuration and is excellent in stability for optical output control. <P>SOLUTION: A part of the light irradiating an optical recording medium from a light source is reflected at a light reflection surface 32 for a reflection mirror 24 and reflected light is received by an optical detection means for the optical monitor. The amount of the light received by the optical detection means for the monitor is adjusted by adjusting a reflection angle of the light reflection surface 32 with an adjustment means 27. The adjustment means is a part of housing and constituted with a through-bore 34 formed on the part corresponding to a surface 33 adjacent to the light reflection surface and an adjustment material 35 which is inserted into the through-bore being free to travel back and forth with its edge part 35a contacting an adjacent surface 33. Because the amount of the light received by the optical detection means for the monitor is appropriately adjusted by the adjustment means, the optical output controlled responding to the detection output for the optical detection means for the monitor is enhanced in its stability. <P>COPYRIGHT: (C)2004,JPO |
