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US 2014/0212122 A1Published application
Barrier device, lens barrel, and imaging apparatus including same
AssigneeCanon Kabushiki Kaisha
InventorToru Ishimasa
Life of this patent
Estimating the term…
Abstract
There is provided a barrier device including a main barrier blade and a sub barrier blade. In the operation range of the main barrier blade and the sub barrier blade, a portion of the contacting surface provided on the sub barrier blade that contacts on the main barrier blade is located within the operation range of the contacting surface provided on the main barrier blade that contacts on the sub barrier blade.
Claims13
A barrier device comprising:
- first and second shielding members configured to be shifted between a closed state in which a lens is shielded and an open state in which the lens is exposed;
- a driving member configured to drive the first and second shielding members to be shifted to the closed or open state,
- wherein a portion of a first contacting surface contacted to the first shielding member is located within an operation range of a second contacting surface contacted to the second shielding member, the first contacting surface being included in the second shielding member and the second contacting surface being included in the first shielding member.
Dependencies are inferred from the claim text.