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Digital camera

A technology of digital camera and aperture, applied in the direction of camera, camera body, still camera, etc., can solve the problems such as the inability to follow the change of light quantity, the difficulty of user recognition and disorder of image brightness change, etc.

Inactive Publication Date: 2007-07-18
OLYMPUS IMAGING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the dynamic image display such as the browsing screen display, the brightness of the image is kept constant by fine-tuning the electronic shutter speed and sensitivity of the imaging element according to the change of the incident light quantity of the subject, but it cannot respond to the sudden light quantity change. If it is fully followed, the brightness of the image displayed on the browsing screen may change unnaturally and become disordered
This image brightness change is very difficult for the user to recognize

Method used

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Embodiment Construction

[0024] Next, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a digital single-lens reflex camera to which the present invention is applied. This single-lens reflex camera is composed of a camera body 20 and a lens barrel 10 as an interchangeable lens. The lens barrel 10 is detachably mounted on a mounting portion on the front surface of the camera body 20 .

[0025] On the upper surface of the camera body 20, a release button 21, a mode dial 22, a power switch lever 23, a control dial 24, and the like are provided. The release button 21 has a first release switch that is turned on when the photographer half-presses it, and a second release switch that is turned on when it is fully pressed. When the first release switch (hereinafter referred to as 1R) is turned on, the camera performs shooting preparation operations such as focus detection, focusing of the photographic lens, and photometry...

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Abstract

A digital camera is provided with a photographing lens having a aperture mechanism, an imaging section, including an image sensor for capturing a subject image via the photographing lens, a display section capable of displaying image information, an aperture drive section for driving the aperture mechanism to a specified position in response to manual operation of a preview instruction member, and a control section for causing execution of an exposure operation for a specified period in the imaging section, and causing display of a moving image on the display section based on image data acquired by the exposure operation. The control section stops the moving image display during drive of the aperture mechanism by the aperture drive mechanism, to thereby prevent unnatural variation in brightness of an image in live view display when a preview operation is carried out.

Description

technical field [0001] The present invention relates to a digital camera having a live view display function, in particular, to a so-called live view display function (also called an electronic viewfinder) that displays an image captured by an imaging element as a moving image on a display device. function) digital camera. Background technique [0002] In existing small digital cameras, an optical viewfinder is used to observe the image of the subject, but recently most of them use digital cameras that do not have an optical viewfinder and have a live view display function. The output of an imaging element provided for recording subject image data is displayed as a moving image on a display device such as a liquid crystal monitor for observing a subject image. [0003] Such a live view display function, for example, does not generate parallax, so it is effective for close-up photography, etc. Therefore, various examples of being mounted on digital single-lens reflex cameras...

Claims

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Application Information

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IPC IPC(8): H04N5/225H04N5/232G03B7/091G03B7/095G03B7/08G03B9/07G03B13/06G03B17/18G03B19/02G03B19/12H04N101/00
CPCH04N5/23245G03B19/12H04N5/235G03B13/06H04N5/23293G03B9/07G03B17/20H04N23/672H04N23/667H04N23/634H04N23/632H04N23/635H04N23/70
Inventor 清水沙织木村亮史
Owner OLYMPUS IMAGING CORP
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