| 摘要 |
PROBLEM TO BE SOLVED: To adjust the movement of a lens in an optical axis direction by easy operation. SOLUTION: A sliding surface 122 consisting of a reference surface 122a, an adjusting surface 122b formed to be more projected than the reference surface 122a, and an adjusting surface 122c formed to be more recessed than the reference surface 122a is formed on the surface perpendicular to an optical axis on the outer periphery of the 2nd lens 120. A lens bearing part 42 for fixing the 2nd lens 120 on the surface perpendicular to the optical axis is projectingly formed on a 1st lens frame 40. At the time of adjustment, the 2nd lens 120 is rotated. Thus, the reference surface 122a or either the adjusting surface 122b or 122c having different height comes into contact with the lens bearing part 42 so as to adjust the movement of the 2nd lens 120 in the optical axis direction. COPYRIGHT: (C)2004,JPO&NCIPI
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