| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate assembly work and to prevent a spring part from interfering with a laser beam, in an optical head device in which a method for setting a diffraction grid to a housing is contrived. <P>SOLUTION: An optical path hole 7 securing an optical path of a laser beam emitted from a semiconductor laser 1 is formed at a center part of spring members 2, 10, while a plurality of spring members 8, 10a are formed at an outer peripheral part of the spring member 2 in the direction of optical axis, to be alternately bent, so as to impart spring property. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
