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Image reading device

一种图像读取装置、成像的技术，应用在图像通信、光导、光学等方向，能够解决图像读取装置小型化困难等问题

Active Publication Date: 2012-07-25
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if separate substrates are provided for the photosensor and the light source, it may still be difficult to reduce the size of the image reading device.

Method used

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Experimental program
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no. 1 Embodiment approach

[0026] figure 1 It is a partial cross-sectional perspective view showing a schematic configuration of a CIS module as one embodiment of the image reading apparatus according to the present invention. figure 2 It is a perspective view showing the incident-side aperture member, the lens array, and the exit-side aperture member. In these figure 1 , figure 2 And in the drawings to be described below, in order to show the positional relationship of each member, XYZ orthogonal coordinates are appropriately shown. In addition, the side of the arrow on the coordinate axis is the positive side, and the side opposite to the arrow of the coordinate axis is the negative side. In addition, in the following description, the negative side in the Z direction is referred to as the upper side, the positive side in the Z direction is referred to as the lower side, the negative side in the Y direction is referred to as the left side, the positive side in the Y direction is referred to as the...

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Abstract

The invention relates to an image reading device capable of realizing miniaturization of the image reading device that guides light from a light source to an object by a light guiding member, and reads the light from the object by a light sensor.The image reading device includes a light source; a light guiding member; an imaging optical system that reflects the light, which faces a first direction from the object, in a second direction intersecting the first direction by a reflective plane disposed in the first direction of the object, that makes the light, which is reflected by the reflective plane, converge toward the second direction by an emission portion disposed in the second direction of the reflective plane, and that images an erect equal-magnification image of the object in the second direction of the emission portion; and an optical sensor that is disposed in the second direction of the emission portion of the imaging optical system, and detects the erect equal-magnification image that is imaged by the imaging optical system, in which the light guiding member is disposed at an object side of the emission portion in the first direction.

Description

technical field [0001] The present invention relates to an image reading apparatus that reads an image of an object by guiding light from a light source to a light guide member to irradiate the object and detecting the light from the object. Background technique [0002] In image scanners, facsimile machines, copiers, financial terminal devices, and the like, a contact image sensor module (hereinafter, simply referred to as a "CIS module") can be used as an image reading device. This CIS module irradiates the object to be read with light, detects the reflected light at this time with an optical sensor, and reads the image of the object to be read. In addition, in order to appropriately guide the reflected light from the object to be read to the optical sensor, an imaging optical system having an imaging magnification equal to an erect image is generally used. That is, the imaging optical system forms an image of the light reflected by the object to be read at the same magni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/028G02B6/00
CPCH04N1/0306H04N2201/02456H04N1/0315H04N2201/02479H04N1/0318H04N2201/02462H04N2201/02458H04N1/0312
Inventor 武田高司木下悟志返町秀光
Owner SEIKO EPSON CORP
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