| 摘要 |
An apparatus for fixing a half mirror of an optical pickup includes a pair of left-hand-side and right-hand-side presser plate portions 12 b, which are respectively extended from both side edge portions of the fastening device body 12 a and caused to elastically abut against a surface of the half mirror 3 . This apparatus further comprises a pair of left-hand-side and right-hand-side engaging claw portions 12 c respectively bent from both side edge portions of the fastening device body 12 a in a direction opposite to a direction, wherein the left-hand-side and right-hand-side presser plate portions 12 b are extended, to thereby engage with the inner surface 5 c, and a catch piece portion 12 d bent from a central portion of the fastening device body 12 a and extended to a peripheral edge of the opening portion 2 a of the light passing hole 2.
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