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Line scan image reading device

A technology for reading devices and linear array images, which is applied in the direction of image communication, electrical components, etc., can solve the problems of inability to read holographic images, inconvenient use, and inability to read images at the same time, and achieve the effect of improving recognition ability and convenient use

Active Publication Date: 2018-01-16
WEIHAI HUALING OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Recently, some image reading devices have added another set of light sources with different irradiation directions inside. Using two sets of light sources with different irradiation directions can read the image of the color-changing ink in different directions, but still cannot read the holographic image. And when this image reading device is used to read the color-changing ink image, it can only be used to read the color-changing ink image and cannot read the original conventional image.
[0006] The above linear array image reading device has the following problems: Since the existing image reading device can only read conventional images or only color-changing ink images, it cannot read holographic images in special originals, nor can it read images of two natures. Simultaneous reading affects the identification of special manuscripts and also causes great inconvenience to use

Method used

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Experimental program
Comparison scheme
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Embodiment 1

[0027] Embodiment 1: figure 2 It is a cross-sectional structure diagram of the line array image device according to Embodiment 1 of the present invention. In the figure, 101 is a first light source capable of emitting light and uniformly illuminating the entire width of the original, and 102 is a first light source extending to the entire reading range in the vertical direction to the moving direction of the original. The first lens that can focus the reflected light of the original document, 103 is a plurality of first sensor chips arranged in a line for receiving the light collected by the lens array 102, and 104 is the first sensor substrate on which the above-mentioned plurality of sensor chips 103 are mounted. , 106 is the first frame for accommodating the light source 101, lens 102, and sensor substrate 104, 105 is a glass plate mounted on the frame 106 to carry the original, 107 is for the sensor substrate 104 to provide power, drive signals and output and read Socket...

Embodiment 2

[0033] Embodiment 2: In the foregoing embodiments, only one second image sensor 20 for reading partial non-conventional images of the original is provided next to the first image sensor 10 for reading the conventional image of the entire original document. A plurality of second image sensors 20 can also be configured as required, such as Figure 6 shown. Figure 6 Next to the first image sensor 10 that reads the conventional image of the entire original document, two second image sensors 20 that read the partial non-conventional image of the original are arranged. When multiple second sensors 20 are equipped, the multiple second sensors 20 may be the same or different.

Embodiment 3

[0034] Embodiment 3: In the foregoing embodiments, the scanning length of the second image sensor 20 configured next to the first image sensor 10 that reads the conventional image of the entire original format is less than its rotatable range, so its rotation angle can be within 360° Set within the range. According to the different requirements for the scanning length of the second image sensor and the limitation of the rotatable range of the second image sensor, the scanning range of the second sensor can also be greater than or equal to its rotatable range, such as Figure 7 shown. exist Figure 7 The scanning length of the second image sensor 20 arranged next to the first image sensor 10 that reads the regular image of the entire original format and reads the partial irregular image of the original is greater than its rotatable range, so the second sensor cannot perform a 360-degree range Angle configuration within ±90° can only be performed. However, changing the angl...

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Abstract

The invention discloses a line array image reading device, which comprises a first image sensor capable of reading the entire width of an original document and a second image sensor capable of reading a partial range of the original document, and the two image sensors have the ability to simultaneously read the original document The same or similar focus position, and the reading direction of the second image sensor can be changed, the image reading device of the present invention can simultaneously read the ordinary image of valuable securities such as banknotes and the information of the embedded holographic image in one scan , which is convenient to use and has high practical value.

Description

technical field [0001] The invention relates to a linear image reading device, in particular to a linear image reading device capable of simultaneously scanning and reading regular images of valuable securities such as banknotes and holographic images contained therein. Background technique [0002] figure 1 It is a cross-sectional view of an existing line array image reading device. In the figure, 1 is a line lighting source that emits light and illuminates the original evenly. The focusing lens, 3 is a plurality of sensor chips arranged in a line for receiving the light collected by the lens 2, 4 is the sensor substrate on which the above sensor chip is mounted, and 6 is a frame for accommodating the light source 1, the lens array 2, and the sensor substrate 4 , 5 is the glass plate that is arranged on the frame 6 to carry the original, and 7 is the socket provided on the sensor substrate to provide power or control signals for the sensor substrate and to transmit the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/028H04N1/031
Inventor 戚务昌
Owner WEIHAI HUALING OPTO ELECTRONICS CO LTD