Camera focal plane shutter and digital camera provided with same

A focal plane shutter and camera technology, applied in the field of digital cameras, to achieve the effect of increasing the speed of continuous shooting

Active Publication Date: 2015-04-29
COPAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the focal plane shutter described in this patent document 2 is configured so that when the shutter release button is pressed for shooting, the first driving member for the front blade can be rotated when the tightening member is returned to its initial position. Not necessarily preferred for mass production

Method used

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  • Camera focal plane shutter and digital camera provided with same
  • Camera focal plane shutter and digital camera provided with same
  • Camera focal plane shutter and digital camera provided with same

Examples

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Embodiment

[0081] First, the main use figure 1 as well as figure 2 To illustrate the structure of the embodiment of the present invention, figure 1 It is a plan view of the state immediately after the exposure operation in the normally open method or the method using the electronic shutter of the imaging element instead of the front blade, figure 2 is true figure 1 A top view of an enlarged representation of approximately the left half of . In addition, in the description of this embodiment, it is explained on the premise that when the focal plane shutter of this embodiment is assembled on the camera, figure 1 The surface side (near side) is the subject side (shooting lens side), figure 1 The back side of is the imaging element side. However, it is well known that in the case of digital cameras, sometimes the figure 1 The surface side of the camera element side, with figure 1 The back side of is the subject side.

[0082] exist figure 1 In the shutter base plate 1, a r...

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PUM

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Abstract

[Problem] To provide a focal plane shutter for which NOP / NCL are switchable and for which an image pick-up interval can be made shorter than the conventional art, and a camera provided with the same. [Solution] In the present invention, the following are provided: front blade driving means (8, 9) for which NOP / NCL are switchable, and that, in an NOP method, causes a front blade to retract from an exposure opening when a set member (15) is in a set position and causes the exposure opening to be covered by the front blade when an initial position return operation is performed, and that in a NCL method, causes the exposure opening to be covered by the front blade during the time until the set member returns from the set position to an initial position and an exposure operation begins; a rear-blade first driving member (11) makes a rear blade, that is locked to a locking member (17) when a setting operation is performed, cover the exposure opening, and when the locking of the locking member is released just before the set position is reached, the rear-blade first driving member causes the rear blade to retract from the exposure opening; and a rear-blade second driving member (12) that is rotated in a setting direction by a setting operation, rotates the rear-blade first driving member in an exposure operation direction when an exposure operation is performed, and causes the exposure opening to be covered by the rear blade.

Description

technical field [0001] The present invention relates to a focal plane shutter for a camera and a digital camera having the focal plane shutter for a camera. Background technique [0002] There are two types of shutter blades, a front blade and a rear blade, in a focal plane shutter for a digital camera. The structure of this focal plane shutter is substantially the same as the focal plane shutter used in cameras that used film in the past. The driving mechanism for the front blade is composed of the driving member for the front blade and the driving spring for the front blade. The driving member and the rear blade are composed of driving springs. The front blade and the rear blade are directly connected to the driving member for the front blade and the driving member for the rear blade respectively. The force of the driving spring rotates sequentially, so that the front blade opens the exposure opening, and the rear blade then closes the opening, thereby exposing the light-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B9/36
CPCG03B9/36G03B9/40G03B9/18G03B9/24H04N23/55G03B9/14G03B9/66G03B9/08
Inventor 西村光平
Owner COPAL CO LTD
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