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Image pick-up device

A camera device and image technology, applied in static cameras, image communication, mirrors, etc., can solve problems such as not giving any description

Inactive Publication Date: 2004-06-02
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the deformable mirror itself, when the driving power is disconnected, basically by its nature, returns to a shape that does not displace

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0048] figure 1 It is a block diagram showing the imaging device of the first embodiment of the present invention. As an imaging device, a configuration example of a digital camera is shown.

[0049] figure 1The shown digital camera includes: a photography lens system 1; a deformable mirror 2 having a deformable reflective surface and electrodes for controlling the shape of the reflective surface; The driving mechanism 4 of the piezoelectric source mechanism 3; the imaging mechanism 5 having an imaging element such as a CCD image sensor that obtains an image signal from the image formed by the aforementioned imaging optical system 1 and the aforementioned deformable mirror 2; processing the image signal from the aforementioned imaging mechanism 5 Image signal processing mechanism 6; system control mechanism 7 for overall system control; camera button 8; image storage mechanism 9 such as a memory for saving captured images; image display and confirmation mechanism 10 for disp...

no. 2 example

[0061] Next, an imaging device according to a second embodiment of the present invention will be described. the basic structure of the second embodiment, and figure 1 The same as the first embodiment.

[0062] image 3 It is a timing chart explaining the operation in this embodiment. image 3 (a) represents the operation of the imaging element, image 3 (b) shows the driving state of the deformable mirror 2 . exist image 3 In (a), the so-called draft mode (draft mode) is a mode in the preparatory stage before image shooting. The image pickup mechanism 6 performs an operation of interval readout of the number of vertical pixels of the image pickup element used for image readout, and a mode of addition readout operation of adding horizontal pixels by the image pickup element. In addition, the so-called frame readout mode (frame reading mode) is a readout mode after operation of an imaging button or the like after shooting, mainly for recording an image on the image storag...

no. 3 example

[0069] Next, an imaging device according to a third embodiment of the present invention will be described. The basic structure of this third embodiment, such as Figure 4 As shown, since the mechanical shutter 13 is disposed on the optical axis from the rear of the imaging lens system 1 to the imaging mechanism 5, in addition to the mechanical shutter 13, other figure 1 The first embodiment shown is the same.

[0070] Figure 5 It is a timing chart explaining the operation in this embodiment. Figure 5 (a) represents the operation of the imaging element, Figure 5 (b) represents the operating state of the mechanical shutter 13, Figure 5 (c) shows the driving state of the deformable mirror 2 . draft mode and frame readout mode, with image 3 The same as described in (a).

[0071] In this implementation form, if Figure 5 As shown in (b) and (c), during the period when the mechanical shutter 13 is open, when the above-mentioned imaging mechanism captures at least one or...

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PUM

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Abstract

Provided is an image pickup device capable of performing desirable control by using a variable shape mirror which recovers its non-deformed shape when a driving power source is turned off. The image pickup device comprises a variable shape mirror 2 with a deformable reflection surface, a driving means 4 which drives the reflection surface, an imaging lens system 1 which generates a focal distance according to the deformation value of the reflection surface, an image pickup means 5 which obtains image signals of an object, a system control means 7 for controlling the driving means 4 so as to keep the displacement state of the variable shape mirror 2 when the image pickup means 5 picks up an image. With this structure, when the image pickup means picks up the image, the control means 7 controls the driving means 4 to supply driving signals continuously so that the displacement state of the variable shape mirror 2 is stored. As a result, when the phototaking is performed, the displacement state of the variable shape mirror 2 is stored to obtain the necessary image, but the variable shape mirror 2 is not driven when not necessary to reduce the power consumption.

Description

technical field [0001] The present invention relates to an imaging device, in particular to an imaging device using a deformable mirror. Background technique [0002] There is a deformable mirror (also referred to as a variable mirror) that can deform a free-form reflective surface using electric power and obtain desired optical characteristics without mechanically moving the lens. By using this deformable mirror in the optical system of an imaging device such as a digital camera, it is possible to realize compactness and weight reduction. For example, JP-A-2002-122784 discloses an optical device using such a deformable mirror in an optical system. [0003] Also, as a digital camera using the above-mentioned deformable mirror, for example, there is a digital camera disclosed in JP-A-2002-221751. [0004] In each of the above publications, by using a deformable mirror, zooming and auto-focusing can be performed without moving the lens, the motor used to move the lens in the...

Claims

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Application Information

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IPC IPC(8): G02B5/10G02B26/08G03B19/02H04N5/225H04N5/232H04N101/00
Inventor 日高彻
Owner OLYMPUS CORP