| 摘要 |
PROBLEM TO BE SOLVED: To realize highly accurate lens positioning with a simple configuration and to make an assembling operation able to be simplified. SOLUTION: In the initial position where an X adjusting member 14 and a Y adjusting member 15 are housed in a first initial position control groove 106a and a second initial position control groove 107a, a lens holding frame 11 is positioned at a predetermined desired position relative to a frame member 10, and the position relative to the frame member 10 of the lens holding frame 11 present at the desired position is adjusted in the state where the lens holding frame 11 is housed in a first adjustment groove 106b and a second adjustment groove 107b from the first initial position control groove 106a and the second initial position control groove 107a through X connection groove 106c and Y connection groove 107c.
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