| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter adapter that allows a simple configuration to implement a simultaneous attachment of a lens filter and lens hood, and allows the lens hood alone to be easily detached.SOLUTION: A filter adapter 20 freely attachable/detachable to a tip end of a movement barrel 10, and capable of attachment/detachment of a lens hood 40 comprises: bayonet parts 23a and 23b that are provided in an inner peripheral face for enabling attachment/detachment to/from the movement barrel 10 due to a bayonet engagement in a direction orthogonal to an optical axis of the movement barrel 10; and a bayonet protrusion part 25 that is provided in an outer peripheral face for enabling the lens hood 40 to be attached/detached to/from the movement barrel 10 due to the bayonet engagement in the optical axis of the movement barrel 10. In an outer peripheral face of the tip end of the movement barrel 10, a bayonet reception part 12 is provided that implements the bayonet engagement with the bayonet parts 23a and 23b, and in an inner peripheral face of the lens hood 40, a first bayonet recess part 42 and second recess part 44 are provided that implement the bayonet engagement with the bayonet protrusion part 25.SELECTED DRAWING: Figure 1 |
