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Multiple light source scanning system and its method

A technology of a scanning system and a scanning method, applied in image communication, electrical components, etc., capable of solving the problems of impracticality, large volume of photosensitive module 103, and increased cost

Inactive Publication Date: 2007-02-07
QISDA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the light source mobile scanning device 100b, since the light source 101 and the photosensitive module 102 move synchronously, the mechanical control needs to be more precise and the cost will be increased.
At the same time, the volume of the photosensitive module 103 is generally large and impractical

Method used

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  • Multiple light source scanning system and its method
  • Multiple light source scanning system and its method
  • Multiple light source scanning system and its method

Examples

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no. 1 example

[0019] Please also refer to figure 2 and image 3 , image 3 A perspective view of the multi-light source scanning system according to the first embodiment of the present invention is shown. The multi-light source scanning system 200 includes: a backlight module 201 , a photosensitive module 203 , a control unit 205 and a stepping motor 202 . The backlight module 201 and photosensitive module 203 are disposed on both sides of the transmissive document 207, that is, the backlight module 201 is fixedly disposed on the upper side of the transmissive document 207, and the photosensitive module 203 is movably disposed on the lower side of the transmissive document 207. The control unit 205 is, for example, a printed circuit board (PCB), fixed on the multi-light source scanning system 200 . The photosensitive module 203 can be a Charge Coupled Device (CCD) photosensitive module or a Complementary Metal Oxide Semiconductor (CMOS) photosensitive module.

[0020] Please refer to ...

no. 2 example

[0028] Please refer to Figure 6 , Figure 6 A perspective view of a multi-light source scanning system 500 according to the second embodiment of the present invention is shown. Different from the first embodiment, in the second embodiment, the control unit 505 further includes several infrared receivers 506 , and the photosensitive module 503 is equipped with an infrared emitter 508 . When the photosensitive module 503 scans under the transmission manuscript 507, a signal is sent through the infrared transmitter 508, and the infrared receiver 506 on the control unit 505 receives the signal of the infrared transmitter 508, and each infrared receiver 506 is respectively corresponding to the backlight Each light source of module 501. For example, the receiver corresponding to the light source 201a is an infrared receiver 506a. If the infrared receiver 506a receives the signal from the infrared emitter 508, it means that the photosensitive module 503 is adjacent to the light s...

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Abstract

The invention relates to a scanning system and scanning method, with multi light sources, wherein the scanning system comprises: a backlight module, a light sensing module, and a controller; the backlight module has several light sources inside the module; the document is between the backlight module and the light sensing module; the light sensing module moves relative the document and the backlight module, to pick up the image of document; the controller controls the movement of light sensing module, and controls the backlight module to turn on at least part of said light sources; when the light sensing module moves to different positions, relative light sources are turned on, and the light will pass through the document to enter into the light sensing module.

Description

technical field [0001] The present invention relates to a scanning system and its scanning method, and in particular to a multi-light source scanning system and its scanning method. Background technique [0002] At present, there are mainly two ways to scan transmission manuscripts (such as positive film and negative film), including two kinds of light source mobile type and light source fixed type. The scanning methods and advantages and disadvantages of the two methods will be described below. [0003] Please refer to Figure 1A , Figure 1A A schematic diagram of a conventional light source fixed scanning is shown. The scanning device 100 a with a fixed light source is used for scanning a transmissive document 107 . The scanning device 100 a with a fixed light source includes a light source 101 , a light guide plate 102 and a photosensitive module 103 . The photosensitive module 103 moves with the stepping motor to receive light signals and convert them into electrical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/04
Inventor 易永祥
Owner QISDA CORP