MOVABLE MEMBER FIXATION DEVICE, PROJECTION DEVICE AND FIXATION METHOD FOR MOVABLE MEMBER

To provide a movable member fixation device which can adjust and fix a movable member after being attached to the periphery of a lens barrel, a projection device and a fixation method for the movable member.SOLUTION: A movable member fixation device 50 comprises: a first screw member 61 and a second screw member 62; a housing fixing part 52 which is pressed against a housing storing a lens barrel and is fixed to the housing; a pressing part 56 which presses the housing fixing part 52 against the housing by moving together with fastening of the first screw member 61; and a movable member fixing part 56 which fixes an adjustment ring by pressing the adjustment ring included in the housing by moving together with fastening of the second screw member 62.SELECTED DRAWING: Figure 3 【課題】レンズ鏡筒周りに取り付けた後に可動部材の調整や固定が可能な可動部材固定装置、投影装置、及び可動部材の固定方法を提供する。【解決手段】可動部材固定装置５０は、第１ねじ部材６１及び第２ねじ部材６２と、レンズ鏡筒を収納する筐体に押し付けられて筐体に固定される筐体固定部５２と、第１ねじ部材６１の締結に伴って移動することにより筐体固定部５２を筐体に対して押し付ける押付部５６と、第２ねじ部材６２の締結に伴って移動することにより筐体が有する調整リングを押圧して調整リングを固定する可動部材固定部５６と、を備える。【選択図】図３