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Photographic device, action processing method

A photography device and processing method technology, applied in photography, focusing device, installation, etc., can solve problems such as blurring of imaging elements, difficulty in knowing the bad influence of foreign objects, difficulty in ensuring the necessary space, etc., and achieve the effect of effective detection and processing

Inactive Publication Date: 2007-07-04
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in a single-lens reflex camera in which the flange bushing of the replacement lens has been determined, the necessary space between the above-mentioned filter and the imaging element can be secured in a camera with a small imaging element. As the size increases, it becomes difficult to secure the necessary space
[0007] Due to the attachment location, size and the aperture value of the photographic lens, the shadow of this foreign object becomes blurred on the imaging element, and it is difficult to know the bad influence of the foreign object. Therefore, the photographer continues to take pictures without noticing the attachment of the foreign object. The problem of detecting bad effects caused by foreign objects under different conditions

Method used

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  • Photographic device, action processing method
  • Photographic device, action processing method
  • Photographic device, action processing method

Examples

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no. 1 example

[0047] First, a first embodiment of the present invention will be described with reference to FIGS. 1 to 8 .

[0048] In this embodiment, the foreign object detection operation is performed when the power switch of the main body of the imaging device is detected to be switched from the off state to the on state. Therefore, it is necessary to perform pre-shooting processing for checking whether there is foreign matter attached before shooting. It is not necessary to perform foreign object detection in actual photography. By operating in this way, the photographer can concentrate on the photography work, and is freed from the trouble of so-called foreign object detection during photography.

[0049] 1 is a central cross-sectional view showing a schematic configuration of a digital single-lens reflex camera as a photographing device according to a first embodiment of the present invention in a standby state. In this figure, a digital single-lens reflex camera 100 is composed of ...

no. 2 example

[0111] Next, a second embodiment of the present invention will be described based on FIG. 9 .

[0112] Since the basic structure of the photographing device of this embodiment is the same as that of FIGS. 1 to 4 of the first embodiment described above, these figures will also be used for description as necessary.

[0113] In the present embodiment, the foreign object detection process is performed when it is detected that the power switch of the camera body 101 is shifted from the on state to the off state. Thereby, it is possible to perform a pre-check at the time of the next photography in advance. In addition, it has the following advantages. There is plenty of time after the shooting, and even if it takes a little time to detect foreign objects, it does not feel complicated. When foreign objects are detected, the removal work can be performed with peace of mind because of the time available. .

[0114] FIG. 9 is a flowchart of pre-shooting processing of the digital singl...

no. 3 example

[0128] Next, a third embodiment of the present invention will be described with reference to FIG. 10 .

[0129] The basic configuration of the imaging device of this embodiment is the same as that of FIGS. 1 to 4 of the above-mentioned first embodiment, and therefore these figures will be used for description as necessary.

[0130] In this embodiment, the foreign object detection process is started when the foreign object detection operation start switch of the camera body 101 is operated, and when the user performs this operation when concerned about foreign object adhesion before starting shooting or after lens replacement, etc., the foreign object detection process can be performed. detection. In this way, the foreign object detection is not automatically performed, and the trouble caused by the foreign object detection processing is not felt.

[0131] 10 is a flowchart of pre-shooting processing of a digital single-lens reflex camera as a shooting device according to a th...

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Abstract

The invention provides an image pickup device capable of detecting foreign matter easily and reliably without hindering photographing operation. The foreign matter on a camera body 101 is detected. A camera CPU 409 performs control so that a foreign matter detection processing may be performed when accessing a power source switch.

Description

technical field [0001] The present invention relates to an imaging device, such as a digital camera, provided with a foreign object detection means for detecting foreign matter adhering to an imaging optical system, an operation processing method, a program, and a storage medium on an imaging device main body. Background technique [0002] In a digital single-lens reflex camera with an interchangeable lens, foreign matter such as dust and garbage in the camera body moves due to lens replacement, mirror driving, and shutter operation, and adheres to the glass cover and imaging element of the imaging element of the photographic optical system. On the surface of the optical low-pass filter, infrared cut filter, etc. placed nearby. In addition, when photographing is performed with the foreign matter attached, the shadow of the foreign matter is written on the imaging element together with the subject image, resulting in a problem that good photographing cannot be performed. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B13/36G03B19/02G02B7/34G03B15/00G02B7/02G03B17/02G03B17/14H04N5/225H04N5/232
CPCH04N5/217H04N5/23209H04N5/232H04N23/81H04N23/55H04N23/663H04N23/60
Inventor 东原正树
Owner CANON KK
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