PROBLEM TO BE SOLVED: To provide a component fixing structure which has a simple and inexpensive configuration to allow a component to be easily and reliably fixed in a short time.SOLUTION: A fixing structure for an optical member includes: a coil spring 82 having a shaft part insertion hole a clip member 81 including a shaft part 83 freely slidably placed in the shaft part insertion hole, a first convex portion 84 provided on the shaft part 83 and having a first contact surface 84a with which the coil spring 82 is brought into contact, a second convex portion 85 having a second contact surface 85a facing the first contact surface 84a, and a slit 86 making the second convex portion 85 elastically deformable into a large-diameter shape and a small-diameter shape a lens holder 51 which includes a clip insertion hole 51h which includes a placement surface having a lens 52 placed thereon and a support surface having the second contact surface 85a placed thereon and allows the second convex portion 85 to pass therethrough with the small-diameter shape and a lens retainer 53 which includes a clip insertion hole 53h which includes an urging surface having the coil spring 82 placed thereon and a pressing surface being in contact with the lens 52 placed on the lens holder 51 and allows the second convex portion 85 to pass therethrough.COPYRIGHT: (C)2014,JPO&INPIT【課題】簡単かつ安価な構成で、部品の固定を容易かつ短時間で確実に行える部品の固定構造を提供する。【解決手段】光学部材の固定構造は、軸部挿通孔を備えるコイルばね82と、軸部挿通孔に摺動自在に配置される軸部83、軸部83に設けられ、コイルばね82が当接する第1当接面84aを有する第1凸部84、第1当接面84aに対向する第2当接面85aを有する第2凸部85、及び第2凸部85を大径な形状と小径な形状とに弾性変形可能にするスリット86を備えるクリップ部材81と、レンズ52が配置される配置面及び第2当接面85aが配置される支持面を備える、第2凸部85が小径において通過可能なクリップ挿通孔51hを備えるレンズホルダー51と、コイルばね82が配置される付勢面及びレンズホルダー51に配置されたレンズ52に当接する押圧面を備える、第2凸部85が通過可能なクリップ挿通孔53hを備えるレンズ抑え53とを具備する。【選択図】図8