| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical pickup lens which can be attached easily, accurately and in a short time at a prescribed angle to a lens holder in the direction of rotation of the lens around the rotation center of the lens. <P>SOLUTION: In this optical pickup lens, both of the lens and lens holder have at least one mark in the direction of rotation around the optical axis of the lens as a rotation center. The mark of the lens holder is provided opposing to the mark of the lens, and it is desirable that the marks of both of the lens and the lens holder are provided at an equal interval. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
