| 摘要 |
PROBLEM TO BE SOLVED: To provide a blade drive device and an imaging apparatus which can effectively suppress upward warpage of a blade group.SOLUTION: A blade drive device includes: a plurality of blades 3 annularly arranged around a light passing route (opening 11 of a ground plate 1, an opening 22 of a drive ring 2); and the drive ring 2 for rotating the plurality of blades 3. The plurality of blades 3 include engagement parts (operation shafts 31) for engaging with each of cam grooves 23 provided to the drive ring 2. At least a portion of each of the cam groove 23 is provided in a manner to slant toward the outside in a radial direction of the drive ring 2. The blade drive device may be included by an image apparatus.SELECTED DRAWING: Figure 1 |
