Imaging device, imaging method and program

a technology of imaging device and imaging method, applied in the direction of shutters, exposure control, instruments, etc., can solve the problems of missing photo opportunities, taking a time to charge the flash, and missing photo opportunities,

Inactive Publication Date: 2010-03-30
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]An object of the present invention is to provide an imaging device, an imaging method and a program capable of performing imaging without missing a photo opportunity.
[0011]An imaging method according to another preferred aspect of the present invention of an imaging device equipped with an imaging unit which images an object, and an auxiliary light source which synchronizes with imaging by the imaging unit to emit a flash having not less than prescribed luminance in a state not less than a prescribed charged state by power to be charged, the imaging method includes a determining step of determining a charging amount from the charged state of the auxiliary light source, and an imaging control step of increasing imaging sensitivity of the imaging unit in response to the charging amount to perform imaging by using the auxiliary light source in imaging by the imaging unit.
[0012]A program according to another preferred aspect of the present invention to be executed on a computer built in an imaging device equipped with an imaging unit which images an object, and an auxiliary light source which synchronizes with imaging by the imaging unit to emit a flash having not less than prescribed luminance and at not less than a prescribed charged state by power to be charged, the program includes a determining step of determining a charging amount from the charged state of the auxiliary light source, and an imaging control step of increasing imaging sensitivity of the imaging unit in response to the charging amount to perform imaging by using the auxiliary light source in imaging by the imaging unit.
[0013]Thereby, it becomes possible to perform the imaging without missing the photo opportunity.

Problems solved by technology

Therefore, specifically, in a state that a battery for a power source has been consumed, it takes time until the next flash imaging becomes possible after carrying out the flash imaging once, and photo opportunities are probably missed frequently.
However, if the battery has been consumed and if imaging which needs the flash emission is performed, the technique still dose not solve a defect such that there is every possibility of taking a time to charge the flash and missing a photo opportunity.

Method used

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Experimental program
Comparison scheme
Effect test

first embodiment

[0022]Hereinafter, first embodiment in the case in which the present invention is applied to a digital camera will be described with reference to the drawings.

[0023]FIG. 1 shows a conceptual configuration of an electronic circuit of a digital camera 10.

[0024]In FIG. 1, in a monitoring state in an imaging mode, positions of a part of lenses in an imaging lens optical system 12, more specifically, positions of a zoom lens and a focus lens are arbitrarily moved by means of driving of a motor (M) 11. A charge-coupled device (CCD) 13 that is a solid imaging device is disposed at an imaging position at the rear of the imaging axis of the optical system 12 thorough a not shown mechanical shutter.

[0025]The CCD 13 is scanning-driven by a timing generator (TG) 14 and a CCD driver 15 to output a photo-electrically converted output by one screen corresponding to an optical image formed for each fixed period.

[0026]An auto gain control / sample hold (AGC / SH) circuit 16 sample-holds the photo-electr...

second embodiment

[0070]Hereinbelow, a second embodiment in the case in which the present invention is applied to a digital camera will be described with reference to the drawings.

[0071]Since a conceptual configuration of an electronic circuit of the digital camera 10 regarding the second embodiment is basically same as that illustrated in FIG. 1, the similar units will be put the similar reference marks and their illustration and explanation will be omitted.

[0072]In the second embodiment, it is presumed that the imaging lens optical system 12 or the CCD 13 has a function of a camera-shake correcting of images due to a hand movement, more specifically, a method for displacing an imaging light axis of the optical system 12, or a method for moving an imaging range in an imaging region of the CCD 13, and the like.

[0073]In addition, in a state in which an acceleration sensor (not shown in FIG. 2) to detect the displacement of the light axis within a frequency range of, for instance, 5 to 50 Hz to two dir...

third embodiment

[0097]In the following, referring to the drawings, a third embodiment in the case in which the present invention is applied to a digital camera will be explained.

[0098]Since a conceptual configuration of an electronic circuit of the digital camera 10 regarding the third embodiment is basically same as that illustrated in FIG. 1, the similar units will be put the similar reference marks and their illustration and explanation will be omitted.

[0099]Next, an operation of the third embodiment will be set forth.

[0100]Also in the digital camera 10, like the generic other cameras, the shutter has the operation stroke of two stages and executes imaging operations based on the operation logic as follows. That is, as the first stage, the operation to the half extent of the full-stroke, which locks each processed value by executing the AF processing and the AE processing in the operation state generally referred to as the half depression; and after this, the full-stroke operation as the second ...

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PUM

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Abstract

An imaging device equipped with an imaging system includes an imaging lens optical system which images an object, a flash emitting unit which synchronizes imaging in the imaging system to emit a flash having not less than a prescribed luminance in a charged state not less than a prescribed charged state by power to be charged, and a control unit which determines a charging amount of the charged state of the flash emitting unit and which controls imaging to be performed by using the flash emitting unit with an imaging sensitivity of the imaging lens optical system set in accordance with the charging amount of the charged state in imaging by the imaging lens optical system.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2005-285739, filed Sep. 30, 2005, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an imaging device, an imaging method and a program particularly appropriate to a digital camera to carry out flash imaging.[0004]2. Description of the Related Art[0005]In general, not exclusively limited to a digital still camera or a silver film camera, but it is usual to control an imaging operation for still image imaging with a flash that is an auxiliary light source emitted. Namely, when the flash is fully emitted one time for imaging, the imaging operation is controlled so as to disable the next flash imaging until a charged state of a large-capacity capacitor to emit the flash reaches an emission allowable amount after the precedin...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G03B15/05
Inventor YANAGI, KAZUNORI
Owner CASIO COMPUTER CO LTD
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