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Imaging device

A technology of camera device and camera element, which is applied in the direction of image communication, TV, color TV parts, etc. It can solve the problems of shortening the release time lag and increasing the number of continuous shots, etc., and achieve the effect of increasing the number of continuous shots.

Active Publication Date: 2012-07-18
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, in the past, AE, AF, and flash firing preparation operations were performed after reading all the image signals obtained by one still image exposure, so it was difficult to shorten the release time lag, and it was also difficult to increase the number of continuous shots per unit time

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] Figure 1 to Figure 12 Embodiment 1 of the present invention is shown, figure 1 It is a block diagram showing the configuration of the imaging device.

[0033] Such as figure 1 As shown, the imaging device has: a lens 1 and a lens control unit 2 as a lens unit; an aperture 3 and an aperture control unit 4 as an aperture unit; an imaging element 5 and an imaging control unit 6 as an imaging unit; an A / D conversion unit 7. Volatile memory 8; Image processing unit 9; Exposure control unit 10; AF processing unit 11; Display unit 13; Operation unit 14; Non-volatile memory 15; 17 and flash light emitting unit 18; power control unit 19; power supply unit 20 and system control unit 21. In addition, in figure 1 Although the external memory 12 is also described in the figure, since the external memory 12 is configured as a memory card or the like detachable from the imaging device, it does not need to be a unique structure in the imaging device.

[0034] The lens 1 images...

Embodiment approach 2

[0113] Figure 13 with Figure 14 Embodiment 2 of the present invention is shown, Figure 13 It is a timing chart showing AF processing based on an image signal obtained from the imaging element 5 while a still image is being divided and read in the imaging device.

[0114] In this second embodiment, the same reference numerals are assigned to the same parts as those in the first embodiment described above, and description thereof will be omitted, and only differences will be mainly described.

[0115] In the above Embodiment 1 Figure 11 In the processing of , the exposure and readout of the image for photometry are performed between the divided readout of the still image, but in this Figure 13 In the processing of , exposure and readout of an image for high-speed video AF are performed instead of exposure and readout of an image for photometry. In addition, in this embodiment, an example is shown in which divided reading of a still image is performed four times.

[011...

Embodiment approach 3

[0149] Figure 15 with Figure 16 Embodiment 3 of the present invention is shown, Figure 15 It is a timing chart showing the process of performing pre-lighting and determining the flash light emission amount for main light emission based on the image signal obtained from the image pickup device 5 while dividing and reading a still image in the imaging device.

[0150] In this third embodiment, the same reference numerals are assigned to the same parts as those in the above-mentioned first and second embodiments, and description thereof will be omitted, and only differences will be mainly described.

[0151] In the above Embodiment 1 Figure 11 In the processing of , the exposure and readout of the image for photometry are performed between the divided readout of the still image, and in the second embodiment described above, Figure 13 In the processing of , the exposure and readout of the image for high-speed video AF are performed between the divided readout of the still ...

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Abstract

The invention provides an imaging device, which can shorten the time for shooting the next still image. The imaging device comprises an imaging element, wherein a two-dimensional arrangement consists of a plurality of pixels of signal charges corresponding to the exposure amount and is provided with a memorizer for storing the image signals of all the pixels; an imaging control part which performs the following control operation: subjecting the imaging element to a first exposure, storing the image signals of all the pixels in the memorizer, subjecting the imaging element to a second exposure according to the first read-out control, and between the read-out period of two continuous fields, a second read-out control for the image signal related to the second exposure is read out; and an imaging condition determination part used for determining the imaging condition related to the first exposure.

Description

technical field [0001] The present invention relates to an imaging device, and more specifically, to an imaging device that performs exposure to obtain an image signal. Background technique [0002] When shooting a still image, AE and AF operations are usually performed before exposure, and when flash lighting is performed, a pre-light emission operation for determining the light emission amount of the main light emission may be further performed. [0003] These AE and AF operations, or flash pre-emission operations (here, pre-emission preparation operations and main emission preparation operations are assumed to be included) need to be performed before exposure of still images, and each operation requires a certain amount of execution time, so in The exposure of the still image starts after taking the time to perform these actions. [0004] Here, in the exposure amount control of AE, the optical diaphragm (hereinafter referred to simply as the diaphragm) that specifies the...

Claims

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Application Information

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IPC IPC(8): H04N5/235
Inventor 岛田义尚
Owner OLYMPUS CORP
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