Contact type image sensor with high reading quality and low cost

An image sensor, a low-cost technology, applied in the direction of image communication, electrical components, etc., to achieve the effect of improving the reading quality and increasing the intensity of light

Active Publication Date: 2009-02-18
WEIHAI HUALING OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the problem that the existing contact image sensor needs to increase a lot of production cost when reading at high speed, and propose a high-reading quality and low-cost contact image sensor

Method used

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  • Contact type image sensor with high reading quality and low cost
  • Contact type image sensor with high reading quality and low cost
  • Contact type image sensor with high reading quality and low cost

Examples

Experimental program
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing:

[0020] As shown in the accompanying drawings, 1 is a light source, 2 is a lens, 3 is a photosensitive part that receives the light collected by the lens 2, that is, a photosensitive integrated circuit, 4 is a sensor substrate equipped with photosensitive integrated circuits 3 arranged in a line, and 6 is a housing The frame of light source 1, lens 2, sensor substrate 4, 5 is the light-transmitting plate that is arranged on the frame 6 top and carries the manuscript, and the structure of above-mentioned each component and the interconnection relation between them are identical with prior art, this does not repeat them here In the present invention, 8 is a V-shaped groove provided on the light-transmitting plate 5, and the V-shaped groove 8 is arranged at a position symmetrical to the light emission direction of the light source 1 with the centerline of the lens 2 as the axis,...

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PUM

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Abstract

The invention discloses a high reading quality low-cost contact type image sensor including sensor substrate carried with aligned photosensitive part; a lens is provided upper of the photosensitive part; a light source and frame accommodating the sensor substrate, lens and light source are provided at side of lens; a transparent board for carrying original copy is provided upper of the frame characterized in that a V-type groove is provided at inner surface of the transparent board, that is, the V-type groove is at surface of transparent board accommodated in frame; and V-type groove is positioned at symmetrical position of ejection direction of light source using lens central line as axis; a reflector is provided in V-type groove. The inventive image sensor promotes the light intensity of irradiated light to original copy, which can not result in shadow and promote image reading quality even if original copy is unsmooth or crimpled.

Description

Technical field: [0001] The invention relates to an image reading device, in particular to a contact image sensor with high reading quality and low cost. Background technique: [0002] Figure 5 It is a cross-sectional view of an existing contact image sensor. In the figure, 1 is a light-emitting light source, 2 is a lens, 3 is a photosensitive part (photosensitive integrated circuit) that receives light collected by the lens 2, and 4 is a photosensitive integrated circuit 3 arranged in a straight line. 6 is a frame for accommodating a light source 1, a lens 2, and a sensor substrate 4; 5 is a light-transmitting plate arranged on the frame 6 to carry an original; 10 is an original. [0003] In the above-mentioned contact image sensor, the light emitted by the light source 1 passes through the light-transmitting plate 5 and is irradiated on the original document 10 outside. Almost 100% of the light is reflected, and the reflected light passes through the glass plate 5 , is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/028
Inventor 泽江哲则戚务昌刘振翔
Owner WEIHAI HUALING OPTO ELECTRONICS CO LTD
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