| 摘要 |
<P>PROBLEM TO BE SOLVED: To manufacture an optical head of high performance simply most and cheaply. <P>SOLUTION: The manufacturing method of an optical head 1 has a semiconductor laser 4 emitting a light beam of the prescribed wavelength, an objective lens condensing the light beam on an optical recording medium, and a lens arranged at an optical path between the semiconductor laser 4 and the objective lens and converting divergence of the optical beam. In this manufacturing method of the optical head 1, a distance from the semiconductor laser 4 to the lens is adjusted based on at least one of the prescribed wavelength, a spherical aberration value of the objective lens, or a spherical aberration of the whole optical system. <P>COPYRIGHT: (C)2009,JPO&INPIT |
