| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical head where the utilization efficiency of laser beams is improved and also arrangement precision of components can be reduced. SOLUTION: The optical head 50A is provided with a half mirror 24 which reflects the laser beams radiated from an optical fiber 71 propagating the laser beams, an objective lens 2 which condenses the laser beams reflected by the half mirror 24 onto an optical disk 80, and a photodetector 29 to which the laser beams reflected by the optical disk 80 are supplied. The optical disk 80 is irradiated with the laser beams LB from the objective lens 2 and reflects the laser beams LB. The laser beams reflected by the optical disk 80 are supplied to the photodetector 29 by the objective lens 2 via the half mirror 24. A light receiving signal Sp according to the laser beams reflected by the optical disk 80 is generated by the photodetector 29, and the light receiving signal Sp is sent out to a flexible signal conductor 79. |
