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Contact type image sensor

An image sensor and contact technology, applied in image communication, instrumentation, optics, etc., can solve the problems of shadows, interference signals, and unequal reading of originals, and achieve the effects of preventing loss, reducing interference signals, and improving strength

Inactive Publication Date: 2009-03-18
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 problems of high light loss, interference signals, and shadows when reading uneven or wrinkled originals in existing contact image sensors, and propose a contact image sensor with high reading quality. type image sensor

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing:

[0019] as attached figure 1 As shown, 1 is a light-emitting light source, 2 is a lens, 3 is a photosensitive part that receives 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 accommodating the light source 1, The frame of the lens 2 and the sensor substrate 4, 5 is a light-transmitting plate arranged on the top of the frame 6 to carry the original. The structure of the above-mentioned components and the interconnection relationship between them are the same as those of the prior art, and will not be repeated here. In the present invention, 7 is a reflective device arranged on the side of the lens opposite to the light source. The reflective surface of the reflective device is on a vertical direction symmetrical to the light emitting directi...

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Abstract

The invention discloses a high illuminance contact type image sensor, which comprises a sensor base plate, sensitizing components arranged on the sensor base plate in line; lenses disposed on the sensitizing components on the sensor base plate, light sources disposed on one side of the lenses, a frame capable of containing the sensor base plate, the lenses and the light sources and a light-passing board for carrying original copy disposed on the upper part of the frame. The invention is characterized in that: the lenses has a light-reflectance apparatus disposed on the side facing the light resource. The reflecting surface of the light-reflectance apparatus is on the perpendicular direction symmetrical with the emitting direction of the light from the light source about the lenses central axis. In the invention, the light reflected by the light-reflectance apparatus and the light emitted by the light source shoot onto the original copy from the two symmetrical directions at the same time, the light intensity on the original copy is improved, and no shadow occurs even the original copy is not flat or has folds, consequently, the image reading quality is improved.

Description

Technical field: [0001] The invention relates to an image reading device, in particular to a contact image sensor. 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 collected by the lens 2 , and irradiates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/028G02B17/08
Inventor 泽江哲则戚务昌
Owner WEIHAI HUALING OPTO ELECTRONICS CO LTD
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