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US 2014/0369675 A1Published application
Blade drive device and optical instrument
AssigneeSeiko Precision Inc.
InventorsHiroshi TAKAHASHI, Shoichi Tokura, Chiaki Nemoto, Yoichi Nakano
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Abstract
A blade drive device includes: a board including an opening; first and second blades opening and closing the opening; and first and second actuators arranged adjacent to each other and respectively driving the first and second blades, wherein the first and second actuators respectively include first and second stators, first and second rotors, and first and second coils, and the first and second rotors is arranged to sandwich at least one of the first and second coils.
Claims6
A blade drive device comprising:
- a board including an opening;
- first and second blades opening and closing the opening;
- and
- first and second actuators arranged adjacent to each other and respectively driving the first and second blades,
- wherein the first and second actuators respectively include first and second stators, first and second rotors, and first and second coils, and
- the first and second rotors is arranged to sandwich at least one of the first and second coils,
- wherein the blade drive device further comprises:
- a first output member rotating together with the first rotor;
- and
- a first drive member engaged with the first output member and driving the first blade,
- wherein at least part of the first output member and at least part or the first drive member overlap at least part of the first stator and the first coil, when viewed in an optical axis direction of the opening.
8 more elements
An optical instrument comprising a blade drive device comprising:
- a board including an opening;
- first and second blades opening and closing the opening;
- and
- first and second actuators arranged adjacent to each other and respectively driving the first and second blades,
- wherein the first and second actuators respectively include first and second stators, first and second rotors, and first and second coils, and
- the first and second rotors is arranged to sandwich at least one of the first and second coils,
- wherein the blade drive device further comprises:
- a first output member rotating together with the first rotor;
- and
- a first drive member engaged with the first output member and driving the first blade,
- wherein at least tart of the first output member and at least part of the first drive member overlap at least part of the first stator and the first coil, when viewed in an optical axis direction of the opening.
8 more elements
Dependencies are inferred from the claim text.