Imaging device and imaging method

一种摄像设备、驱动方法的技术，应用在图像通信、电视、彩色电视等方向，能够解决释放时间延迟、错过快门机会、影响大等问题，达到缩短释放时间延迟的效果

Inactive Publication Date: 2011-11-30
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the exposure control time Tex and the autofocus time Tfo have a great influence on the release time delay Tlg
Release time delay can lead to missed shutter opportunities

Method used

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  • Imaging device and imaging method
  • Imaging device and imaging method
  • Imaging device and imaging method

Examples

Experimental program
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Embodiment Construction

[0028] Various exemplary embodiments, features, and aspects of the invention are described in detail below with reference to the accompanying drawings.

[0029] The drawings to be used to illustrate these exemplary embodiments are schematic diagrams. For ease of understanding, the size and shape of each unit are appropriately exaggerated. Also, in the following description, specific numerical values, structures, and operations are shown. However, the present invention is not limited thereto, and they may be appropriately changed.

[0030] example

[0031] figure 1 is a block diagram showing the structure of an imaging apparatus according to an exemplary embodiment of the present invention. The imaging lens 110 forms an imaging optical system together with a focus lens 111 (described later), and is used to form a subject image on the image sensor 200 . The focus lens 111 moves in the optical axis direction, thereby focusing the subject image on the image sensor 200 .

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Abstract

A focusing operation is started before desired exposure according to a second program diagram is obtained when a program diagram is switched from a first program diagram to be used in a first mode to the second program diagram to be used in a second mode based on a light metering value.

Description

technical field [0001] The present invention relates to an imaging apparatus capable of changing the timing of autofocus control when changing a driving method of an image sensor, and an imaging method of the imaging apparatus. Background technique [0002] Currently, many cameras (ie, imaging devices) can capture both moving images and still images. The moving image shooting mode and the still image shooting mode are switched via a mechanical switch or the like in many products. More specifically, when the user wants to shoot a moving image, the user switches the mechanical switch to the moving image shooting mode, and then presses a moving image shooting start trigger button. When the user wants to take a still image, the user switches the mechanical switch to the still image shooting mode, and then presses the still image shooting trigger button. However, as a stress-free imaging apparatus, it is desirable to be able to capture a moving image or a still image without sw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235G02B7/28G03B7/097G03B13/36H04N5/225
CPCH04N5/23212H04N5/238G03B7/097G03B13/36H04N5/23245H04N5/2352H04N5/2351H04N23/671H04N23/667H04N23/72H04N23/71H04N23/75
Inventor 池田刚
Owner CANON KK
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