JP2013195904A5

JP2013195904A5 -

Info

Publication number: JP2013195904A5
Application number: JP2012065236A
Authority: JP
Filing date: 2012-03-22
Publication date: 2015-04-02
Anticipated expiration: 2032-03-22

Description

本発明の一側面としての撮像装置は、先羽根群を駆動する先羽根用駆動部材と、後羽根群を駆動する後羽根用駆動部材と、前記先羽根用駆動部材および前記後羽根用駆動部材を回動させるカム部材と、前記カム部材を駆動するモータと、前記モータを制御する制御部と、を有し、前記制御部は、通常撮影時において、前記後羽根用駆動部材を解除する際に、前記先羽根用駆動部材を解除する際に印加される第１の電圧より小さい第２の電圧を前記モータに印加し、ライブビュー撮影時において、前記後羽根用駆動部材を解除する際に、前記第１の電圧より低く、前記第２の電圧より高い第３の電圧を前記モータに印加することを特徴とする。 An imaging apparatus according to one aspect of the present invention includes a leading blade driving member that drives a leading blade group, a trailing blade driving member that drives a trailing blade group, the leading blade driving member, and the trailing blade driving member. A cam member that rotates the cam member , a motor that drives the cam member , and a control unit that controls the motor. The control unit releases the trailing blade drive member during normal shooting. When applying the second voltage smaller than the first voltage applied when releasing the leading blade driving member to the motor and releasing the trailing blade driving member during live view shooting. A third voltage lower than the first voltage and higher than the second voltage is applied to the motor.

Claims

A leading blade driving member for driving the leading blade group;
A rear blade drive member for driving the rear blade group;
A cam member for rotating the leading blade driving member and the trailing blade driving member;
A motor for driving the cam member ;
A control unit for controlling the motor,
The controller is
During normal shooting,
When releasing the trailing blade driving member, a second voltage smaller than the first voltage applied when releasing the leading blade driving member is applied to the motor;
During Live View shooting,
An image pickup apparatus that applies a third voltage, which is lower than the first voltage and higher than the second voltage, to the motor when releasing the rear blade driving member.

The said control part applies the 4th voltage lower than the said 1 voltage to the said motor, when releasing the said front-wing drive member at the time of live view imaging | photography. Imaging device.

The imaging apparatus according to claim 2, wherein the third voltage is equal to the fourth voltage.

The cam member includes a leading blade first cam surface traced by the leading blade driving member and a leading blade second cam surface formed with a cam lift set smaller than a cam lift of the leading blade first cam surface; A trailing blade first cam surface traced by the trailing blade drive member and a trailing blade second cam surface formed with a cam lift set smaller than the cam lift of the trailing blade first cam surface;
The control unit applies an applied voltage to the motor when the cam member performs a charging operation on the rear blade second cam surface, and applies to the motor when a charging operation is performed on the rear blade first cam surface. The imaging apparatus according to claim 1, wherein the imaging apparatus is controlled so as to be lower than the voltage.

The rotation angle of the cam member when performing a charging operation on the leading blade second cam surface is larger than the rotation angle of the cam member when performing a charging operation on the trailing blade second cam surface. Item 5. The imaging device according to Item 4.

The imaging apparatus according to claim 5, wherein charging operations of the leading blade driving member and the trailing blade driving member are completed simultaneously.

The imaging apparatus according to claim 4, wherein the charging operation on the leading blade second cam surface ends before the charging operation on the trailing blade second cam surface is started.