DIAPHRAGM BLADE DRIVING DEVICE AND LIGHT AMOUNT ADJUSTMENT DEVICE AND IMAGING DEVICE

Title:

DIAPHRAGM BLADE DRIVING DEVICE AND LIGHT AMOUNT ADJUSTMENT DEVICE AND IMAGING DEVICE

Document Type and Number:

Japanese Patent JP2017040719

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a diaphragm blade driving device, a light amount adjustment device and an imaging device capable of achieving further stable driving of blades while reducing generation of noise.SOLUTION: A diaphragm blade driving device includes: an opening formation member for forming an opening in which light passes; a plurality of diaphragm blades arranged around the opening; a rotary member for allowing the plurality of diaphragm blades to come in and out of the opening by rotating around the opening in a sate of being engaged with the plurality of diaphragm blades; driving means mounted on the opening formation member and for rotating the rotary member around the opening; and an energization member for energizing a rotary shaft which the driving means has from the opening formation member side to the body side of the driving means in an axial direction.SELECTED DRAWING: Figure 1

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Inventors:

KATO SUSUMU

Application Number:

JP2015161193A

Publication Date:

February 23, 2017

Filing Date:

August 18, 2015

Export Citation:

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Assignee:

CANON DENSHI KK

International Classes:

G03B9/06

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