Blade drive device
AssigneeNidec Copal Corporation
InventorsKazuo SHIKAMA, Shozo IWATO, Kenzo IMAI, Longji BAI, Nobuaki WATANABE
Life of this patent
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Abstract
Because a thin blade is disposed in a space that has a thickness in the optical axial direction, which contains a coil and a magnet, when the blade is driven the blade tends to become unstable, making smooth operation of the thin blade difficult. A blade driving device has a driving member; a frame that is provided with a driving frame chamber that contains the driving member; a blade supporting unit that has an opening and that structures a blade chamber that is separate from the driving frame chamber; and a blade member that is contained in the blade chamber, and that is moved by the driving member to advance into the opening.
Claims18
A blade driving device, comprising:
- a driving member;
- a frame equipped with a driving frame chamber that contains the driving member;
- a blade supporting member that has an opening, and that structures a blade chamber that is separate from the driving frame chamber;
- and
- a blade member that is contained in the blade chamber and that is moved by the driving member to advance into the opening.
Dependencies are inferred from the claim text.