| 摘要 |
PURPOSE:To realize the optical head with less off-track by constituting the optical head so that a fitting angle can be changed when a laser light emitting element is fitted to the optical head. CONSTITUTION:In the optical head constituted by combining the laser light emitting element 2b and an optical element 8a, the laser light emitting element 2b is fitted so that the direction of its optical axis 26b can be changed in relation to the optical axis 25a of the optical element 8a. Through this configuration, even in the case that the optical axis 26b of the laser light emitting element 2b is inclined with the reference surface 19 of the laser light emitting element 2b, by changing the fitting angle of the laser light emitting element 2b by an angle theta corresponding to inclination, it becomes possible that the optical axis 26b of the laser light emitting element 2b and the optical axis 25a of an optical system are made to coincide in the same direction. |
