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camera element, camera device

An imaging element and image technology, applied in the field of imaging devices and imaging elements, can solve the problems of inability to perform focus detection, pixel signals for focus detection cannot be used for focus detection, and enjoyment cannot be used.

Inactive Publication Date: 2018-11-06
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, for example in the case of adding V1 / 5H3 / 3, since 4 out of every 5 rows ( Figure 9 Lines colored gray in ) are not converted into digital signals, so the pixel signals for focus detection contained in the unconverted lines cannot be used for focus detection. Figure 9 In the example shown, since only the signal of the pixel R for focus detection is obtained, focus detection cannot be performed.
Therefore, for example, it is necessary to obtain the pixel signal for focus detection using a different frame from the acquisition of moving images, and it is impossible to enjoy the advantage of increasing the frame rate by approximately 5 times.

Method used

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Experimental program
Comparison scheme
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Embodiment approach 1

[0045] Figure 1 to Figure 13 Showing Embodiment 1 of the present invention, figure 1 It is a block diagram showing the configuration of the imaging device.

[0046] Such as figure 1 As shown, the imaging device has a lens 1, an imaging element 2, an image processing unit 3, an AF (autofocus) evaluation value calculation unit 4, a display unit 5, a hand shake detection unit 7, a hand shake correction unit 8, and an exposure control unit 9 , a focus control unit 10 , a camera operation unit 11 , and a camera control unit 12 . in addition, figure 1 Although the memory card 6 is also described in , since the memory card 6 is configured to be detachable from the imaging device, it does not need to be a unique configuration of the imaging device.

[0047] The lens 1 is an imaging optical system that forms an optical image of a subject in an imaging area of ​​the imaging element 2 . This lens 1 has a focus lens for adjusting a focus position and focusing, and a diaphragm for...

Embodiment approach 2

[0150] Figure 14 ~ Figure 17 Showing Embodiment 2 of the present invention, Figure 14 It is a block diagram showing the outline of the configuration of the imaging device 2 .

[0151] In this second embodiment, the same reference numerals and the like are attached to the same parts as those in the first embodiment described above, and explanations thereof are appropriately omitted, and only differences will be mainly described.

[0152] In the above Embodiment 1 figure 2 In the above, the pixel signal synthesis unit 23 is disposed at the subsequent stage of the first memory unit 22A as the first analog memory, but in this embodiment, it is disposed at the preceding stage of the first memory unit 22A.

[0153] That is, if Figure 14 As shown, the pixel signal for image and the pixel signal for focus detection output from the pixel unit 21 are input to the pixel signal synthesis unit 23, and firstly combined by pixel addition or the like. Therefore, in the present embodim...

Embodiment approach 3

[0169] Figure 18 ~ Figure 25 Showing Embodiment 3 of the present invention, Figure 18 is a block diagram showing the outline of the configuration of the imaging element 2, Figure 19 is a diagram showing the structure of the pixel 31 .

[0170] In this third embodiment, the same reference numerals and the like are attached to the same parts as those in the first and second embodiments above, and explanations thereof are appropriately omitted, and only differences will be mainly described.

[0171] In Embodiments 1 and 2, there are two types of pixels 31 in the pixel unit 21 , one for image and one for focus detection. On the other hand, in the present embodiment, one pixel has both functions for image and focus detection.

[0172] First, if Figure 19 As shown, the pixel 31 has a photodiode PDR for photoelectrically converting light passing through the right side of the pupil of the lens 1, a photodiode PDL for photoelectrically converting light passing through the left ...

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Abstract

The invention provides camera elements and camera devices, which can effectively shorten the reading time of the image, and can also read the focus detection with pixel signals to perform focus detection.Camera element (2) has: pixel signal (21) of pixel signals for generating image and focus detection, 1st memory department (22A) of pixel signals for storage images, 22A) of the pixel signal for storage focus detection.Ministry (22B), pixel signal synthesis department (23) of pixel signals (23) for synthetic images based on multiple pixel signals, and output pixel signals and second memory sides of the image synthesized by the pixel signal synthesis (23) synthesis (22B) The image signal output of the pixel signal for the focus detection in the storage (24).

Description

technical field [0001] The present invention relates to an imaging element and an imaging device in which pixels are arranged in a matrix and generate image pixel signals and focus detection pixel signals. Background technique [0002] In recent years, an imaging element has been proposed in which pixels are arranged in a matrix and generates pixel signals for an image and pixel signals for focus detection. For example, such an imaging element is known to have a structure in which pixels for focus detection are discretely arranged among image pixels arranged in a matrix, or a plurality of photodiodes are provided in one pixel so that a pixel signal and a pixel signal for an image can be obtained from one pixel. The structure of both pixel signals for focus detection, etc. [0003] Furthermore, while static images require high resolution images, moving images require images with a certain resolution (a certain number of pixels) at a frame rate of, for example, 30 fps or 60 f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/235H04N5/378H04N25/46
CPCH04N23/672H04N23/673H04N25/46H04N25/704H04N23/10H04N23/843H04N25/134H04N25/78H03M1/124H03M1/468H04N25/75
Inventor 岛田义尚
Owner OLYMPUS CORP