JPH03214978A - Image sensor unit - Google Patents

Abstract

PURPOSE:To increase number of picture elements virtually by nearly a multiple of number of times of movement and to improve the resolution by moving a CCD image sensor vertically or horizontally in parallel with its photodetecting face and reading a picture data for each movement of the CCD image sensor. CONSTITUTION:A CCD image sensor 1 is fixed to a movable holding part 2, one of both left/right ends of the holding part 2 is held with a spring 3 made of an elastic body and the other is held with a vibrating plate 4 made of a piezoelectric body or the like in parallel with its photodetecting face movable horizontally. Moreover, one of both upper/lower ends of a holding frame 5 is held with a spring 6 made of an elastic body and the other is held with a vibrating plate 7 made of a piezoelectric body or the like in parallel with its photodetecting face movable vertically to form the CCD image sensor unit. Then a picture element 11 is moved as 1' 2' 3' 4' 1'. For example, the CCD image sensor is moved vertically and horizontally with an amplitude of 1/2 of each picture element pitch and a picture data is processed for each movement to obtain number of picture elements four times of the picture element number of the CCD image sensor itself.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a CCD image sensor unit that virtually increases the number of pixels in an image sensor (referred to as a CCD image sensor) using a charge storage element used in video cameras and electronic still cameras. This is about notes. Conventional technology A conventional CCD image sensor has 270,000 pixels or
Image resolution was determined by the number of pixels in the element itself, such as 400,000 pixels. Problems to be Solved by the Invention However, with the above-mentioned conventional configuration, the only way to improve the image resolution is to simply increase the number of pixels, and when the number of pixels is increased, there are problems such as yield, and a large amount of image processing is required. It was difficult to produce and very expensive. Means for Solving the Problems In order to solve the above problems, the present invention fixes a CCD image sensor to a movable holding part that moves vertically or horizontally parallel to the light-receiving surface of the CCD image sensor, and prevents pixel pinch of the COD image sensor. The CCD image sensor is configured to move vertically or horizontally by 1/2 or l/integer and read image data each time it moves, or to process each image data at the same timing as the CCD image sensor is moving. be. Effect of the Invention With the above configuration, the present invention can apparently increase the number of pixels of the CCD image sensor itself, and can provide a high-resolution CCD image sensor unit.

EXAMPLE Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 to 4. FIG. 1 is a perspective view of a CCD image sensor unit according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram illustrating the moving state of the CCD image sensor. According to the figure, the COD image sensor 1 is held by the movable holding part 2.
The movable holding part 2 is fixed to the left and right ends thereof, with a spring 3 made of an elastic material on one side and a diaphragm 4 made of a piezoelectric material on the other,
The CCD image sensor 1 is held so as to be movable left and right in parallel with its light-receiving surface, and furthermore, at both the upper and lower ends of the holding frame 5, one is provided with a spring 6 made of an elastic material, and the other is provided with a diaphragm 7 made of a piezoelectric material or the like. , a CCD image sensor l is held so as to be movable up and down parallel to its light-receiving surface, and constitutes a COD image sensor unit.

To explain the movement state of COD with reference to Fig. 2, 1
l is a pixel of the CCD, and this pixel l1 moves from ■→■, ■→■ by the moving plate 4, and also by the vibration Fi7.
Move →■,■→■. That is, the pixel 11 moves from ■→■→■→■→■ by the moving plate 4.7, so as shown in Fig. 2, it moves vertically and horizontally with an amplitude of 1/2 of each pixel pinch, and each time it moves, , it is possible to process image data to obtain a pixel count four times that of the CCD image sensor itself.

Further, FIG. 3 is a perspective view of another embodiment of the present invention, and FIG. 4 is an explanatory diagram illustrating the state of movement of the CCD image sensor.

According to the figure, the CCD image sensor 2l is fixed to the movable holding part 22, and springs 23 are attached to each end of the movable holding part 22.
By integrally forming the fixing part 24 and the holding frame 25 made of ferromagnetic material, the CCD image sensor 21 is held movably in the left and right directions parallel to its light-receiving surface. A magnet 26 is disposed, and a drive coil 2 is mounted on a holding frame 25 formed of the above-mentioned ferromagnetic material facing the magnet 26.
7. 28 are arranged to form a magnetic circuit. Note that the drive coil 27. 28 may be located anywhere within the magnetic circuit of the holding frame 25. Further, the magnet 26 is made of a ferromagnetic material, the holding frame 25 is made of a non-magnetic material, and the drive coil 27. It may be driven with a suction force of 28. To explain the state of movement of the CCD with reference to FIG. 4, 31 is C
This pixel 3l is a CD pixel, and the movement of ■→■→■→■→■ is caused by the magnet 26 and the drive coil 27. 28, and as shown in Figure 4, each pixel is moved left and right with an amplitude of 1/4 of each pixel pinch, and the image data is processed each time it is moved. This allows you to obtain the number of pixels. It goes without saying that the processing of each image data can be done simply by adjusting the timing while the COD image sensor is moving. Effects of the Invention As described above, according to the present invention, the CCD image sensor is moved vertically or horizontally parallel to its light-receiving surface, and the CCD image sensor
By reading image data each time the image sensor moves, the number of pixels can be virtually increased by twice the number of movements, making it possible to provide a high-resolution COD image sensor unit.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a CCD image sensor unit according to an embodiment of the present invention, FIG. 2 is an explanatory diagram illustrating the moving state of the same COD image sensor, and FIG. 3 is a perspective view of a CCD image sensor unit according to another embodiment of the present invention. FIG. 4 is a perspective view of the first embodiment, and FIG. 4 is an explanatory diagram illustrating the state of movement of the CCD image sensor. 1... COD image sensor, 2...
Movable holding part, 3... Spring, 4... Vibration plate, 5... Holding frame, 6... Spring,
7... Vibration plate, 8... Holding frame, l1.
...pixel.

Claims (3)

[Claims] (1) An image sensor unit that uses a charge storage element that is held movably up and down or left and right parallel to the light-receiving surface. (2) An image sensor unit using a charge storage element according to claim 1, wherein the image sensor unit moves vertically or horizontally by 1/2 or 1/integer of a pixel pinch, and reads image data every time the pixel is moved. (3) An image sensor unit using the charge storage element according to claim 1, wherein the image is read and processed in accordance with the timing of movement of the CCD image sensor.