CN203072041U - Contact image sensor - Google Patents
Contact image sensor Download PDFInfo
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- CN203072041U CN203072041U CN 201320106169 CN201320106169U CN203072041U CN 203072041 U CN203072041 U CN 203072041U CN 201320106169 CN201320106169 CN 201320106169 CN 201320106169 U CN201320106169 U CN 201320106169U CN 203072041 U CN203072041 U CN 203072041U
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Abstract
The utility model discloses a contact image sensor, comprising a frame body playing a supporting role; wherein the frame body is provided with an optical lens therein, side surfaces of the optical lens are provided with light sources, a transparent plate is arranged above the lens, a line substrate is arranged below the lens, and a photoelectric conversion chip is arranged on the line substrate; the photoelectric conversion chip is provided with two rows of photosensitive windows, every three photosensitive windows in one row of photosensitive windows surfacely form a cycle unit in an equally spaced way, upper surfaces of the three photosensitive windows in the cycle unit are respectively provided with different models of light-transmitting films, i.e., a red excitation light light-transmitting film, a green excitation light light-transmitting film, and a blue excitation light light-transmitting film; when the contact image sensor works, one row of the photosensitive windows of which surfaces are not provided with the light-transmitting films read reflection information of a red light, a blue light, a green light, and an infrared light, and the other row of the photosensitive windows of which the surfaces are provided with the light-transmitting films can read excitation information of an ultraviolet light in the way of low resolution and high speed, so as to complete color quick reading for the ultraviolet light, thereby raising accuracy of image scanning.
Description
Technical field
The utility model relates to sensor technical field, is the contact-type image sensor that a kind of sweep speed is fast, be used for financial false distinguishing specifically.
Background technology
We know, the existing contact image sensor architecture as shown in Figure 1, it is provided with passive framework 1, be provided with optical lens 2 in the framework 1, the side of optical lens 2 is provided with light source 3 (ruddiness, blue light, green glow, infrared light) and light source 4(ultraviolet light), the top of lens 2 is provided with transparent panel 5, the below of lens 2 is provided with wiring board 6, be positioned on the wiring board 6 lens 2 under be provided with opto-electronic conversion chip 7, there is row's photosensitive window 11 on opto-electronic conversion chip 7 surfaces, the function of opto-electronic conversion chip 7 is photosensitive window 11 sensitization, and converts light signal to the signal of telecommunication.The contact-type image sensor operation principle is that light source 3 sends light, seeing through transparent panel 5 shines on the original copy, image on the original copy, literal etc. produce reverberation, these reverberation pass transparent panel 5 again, enter optical lens 2, the reverberation that comes out from optical lens 2 other ends shines on the photosensitive window 11 of opto-electronic conversion chip 7, photosensitive window 11 sensitization, and opto-electronic conversion chip 7 converts the light signal that receives to the signal of telecommunication; Light source 4 sends ultraviolet light, seeing through transparent panel 5 shines on the original copy, UV reactive zone on the original copy produces exciting light, these exciting lights pass transparent panel 5 again, enter optical lens 2, the exciting light that comes out from optical lens 2 other ends shines on the photosensitive window 11 of opto-electronic conversion chip 7, photosensitive window 11 sensitization, and opto-electronic conversion chip 7 converts the light signal that receives to the signal of telecommunication.Original copy is constantly mobile, and the image of putting down in writing on it, Word message, UV reactive area information will be read continuously, finish the image information scanning process of original copy.
Along with imageing sensor in the application in financial false distinguishing field more and more widely, use ultraviolet light scanning false distinguishing to become requisite means gradually, the exciting light that the UV reactive zone produces on bank note and the check contains the optical information of multiple different wave length, the existing contact imageing sensor can only read it as a kind of optical information, can not make a distinction effectively, influence the accuracy of image scanning and discriminating; Simultaneously generally do not need high-resolution to read during UV scanning, existing imageing sensor ultraviolet light scanning can only be read with identical resolution with ruddiness, green glow, blue light, four kinds of gloss of infrared light, has reduced sweep speed.Therefore how to guarantee the accuracy of ultraviolet light scanning and the sweep speed of raising ultraviolet light, be of great immediate significance.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can carry out visible light scanning, can accurately carry out ultraviolet light scanning again, and can improve the contact imageing sensor of the sweep speed of ultraviolet light.
The utility model can reach by following measure:
A kind of contact-type image sensor, comprise passive framework, be provided with optical lens in the framework, the side of optical lens is provided with light source, the top of lens is provided with transparent panel, the below of lens is provided with circuit base plate, circuit base plate is provided with the opto-electronic conversion chip, it is characterized in that the opto-electronic conversion chip is provided with two row's photosensitive windows, wherein per three photosensitive windows in an equal intervals ground, row's photosensitive window surface are a cycling element, and three photosensitive window upper surfaces in the cycling element arrange the light-transmissive film of different model respectively.
Three photosensitive window upper surfaces in the cycling element described in the utility model arrange red exciting light light-transmissive film, green motivation light light-transmissive film, blue exciting light light-transmissive film respectively.
The light source that the side of optical lens described in the utility model is provided with is made up of ruddiness, green glow, blue light, infrared light, five kinds of light sources of ultraviolet light.
Two row's photosensitive windows described in the utility model are arranged to different resolution.
During the utility model work, red-light source, blue light source, green-light source, infrared light light source send light, seeing through transparent panel shines on the original copy, image on the original copy, literal etc. produce reverberation, these reverberation pass transparent panel again, enter optical lens, and the reverberation that comes out from the optical lens other end shines on row's photosensitive window that light-transmissive film is not set on the opto-electronic conversion chip, photosensitive window sensitization, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication; Ultraviolet source is luminous, seeing through transparent panel shines on the original copy, UV reactive zone on the original copy produces exciting light, these exciting lights pass transparent panel again, enter optical lens, the exciting light that comes out from the optical lens other end shine the opto-electronic conversion chip be provided with light-transmissive film photosensitive window on, three adjacent photosensitive windows read the redgreenblue information of exciting light respectively, by the synthetic colour information of image processing system, original copy is constantly mobile, the image of putting down in writing on it, Word message, the UV reactive area information will be read continuously, finishes the image information scanning process of original copy.
The beneficial effects of the utility model are, contact-type image sensor is when carrying out ruddiness, green glow, blue light, infrared light scanning, can also be to the exciting light of ultraviolet light generation, carrying out redgreenblue by light-transmissive film reads, increase the accuracy of image scanning, improve the sweep speed of ultraviolet light simultaneously.
Description of drawings
Fig. 1 is the generalized section of existing contact-type image sensor.
Fig. 2 is generalized section of the present utility model.
Fig. 3 is the schematic diagram of opto-electronic conversion chip in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
Embodiment: as shown in Figure 2, a kind of contact-type image sensor, comprise passive framework 1, be provided with optical lens 2 in the framework, the side of optical lens 2 is provided with light source 3 and light source 4, the top of lens 2 is provided with transparent panel 5, the below of lens 2 is provided with circuit base plate 6, be positioned on the circuit base plate 6 lens 2 under be provided with opto-electronic conversion chip 8, it is characterized in that opto-electronic conversion chip 8 is provided with two row's photosensitive windows 21,22, wherein row's photosensitive window 21 surfaces do not have light-transmissive film, and the surface of other row's photosensitive window 22 is provided with different types of light-transmissive film.During contact-type image sensor work, light source 3 sends ruddiness, green glow, blue light, infrared light, seeing through transparent panel 5 shines on the original copy, image on the original copy, literal etc. produce reverberation, these reverberation pass transparent panel 5 again, enter optical lens 2, and the reverberation that comes out from the optical lens other end shines opto-electronic conversion chip 8 and do not arrange on row's photosensitive window 21 of light-transmissive film, photosensitive window 21 sensitization, opto-electronic conversion chip 8 converts the light signal that receives to the signal of telecommunication; 4 ultraviolet lights of light source, seeing through transparent panel 5 shines on the original copy, UV reactive zone on the original copy produces exciting light, these exciting lights pass transparent panel 5 again, enter optical lens 2, the exciting light that comes out from optical lens 2 other ends shine opto-electronic conversion chip 8 be provided with light-transmissive film row's photosensitive window 22 on, photosensitive window 22 sensitization, opto-electronic conversion chip 8 converts the exciting light signals that receive to the signal of telecommunication.Original copy is constantly mobile, and the image of putting down in writing on it, Word message, UV reactive area information will be read continuously, finish the image information scanning process of original copy.
Exciting light shines opto-electronic conversion chip 8 shown in Figure 3 and is provided with on row's photosensitive window 22 of light-transmissive film, be respectively equipped with light-transmissive film 31, green motivation light light-transmissive film 32, the blue exciting light light-transmissive film 33 that can only see through red exciting light on one row's photosensitive window, 22 equally spaced per three photosensitive windows, three photosensitive windows receive the information of red exciting light, green motivation light, blue exciting light respectively, image processing system can increase the accuracy of image scanning with the synthetic colour information of three kinds of exciting light information of red, green, blue that three adjacent photosensitive windows are accepted.
One row's photosensitive window 21 and another row's photosensitive window 22 adopt no control line MODE1 and MODE2 control respectively, two row's photosensitive windows can scan with different resolution, both can realize ruddiness, green glow, blue light, the high-resolution accurate scanning of infrared light, can realize the quick scanning of ultraviolet light low resolution again.
Claims (4)
1. contact-type image sensor, comprise passive framework, be provided with optical lens in the framework, the side of optical lens is provided with light source, the top of lens is provided with transparent panel, the below of lens is provided with circuit base plate, circuit base plate is provided with the opto-electronic conversion chip, it is characterized in that the opto-electronic conversion chip is provided with two row's photosensitive windows, wherein per three photosensitive windows in an equal intervals ground, row's photosensitive window surface are a cycling element, and three photosensitive window upper surfaces in the cycling element arrange the light-transmissive film of different model respectively.
2. a kind of contact-type image sensor according to claim 1 is characterized in that three photosensitive window upper surfaces in the cycling element arrange red exciting light light-transmissive film, green motivation light light-transmissive film, blue exciting light light-transmissive film respectively.
3. a kind of contact-type image sensor according to claim 1 is characterized in that the light source that the side of optical lens is provided with is made up of ruddiness, green glow, blue light, infrared light, five kinds of light sources of ultraviolet light.
4. a kind of contact-type image sensor according to claim 1 is characterized in that two row's photosensitive windows are arranged to different resolution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106169 CN203072041U (en) | 2013-03-08 | 2013-03-08 | Contact image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106169 CN203072041U (en) | 2013-03-08 | 2013-03-08 | Contact image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203072041U true CN203072041U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320106169 Expired - Lifetime CN203072041U (en) | 2013-03-08 | 2013-03-08 | Contact image sensor |
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| Country | Link |
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| CN (1) | CN203072041U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354911A (en) * | 2015-11-25 | 2016-02-24 | 威海华菱光电股份有限公司 | Image scanning method and image scanning device |
| CN108040187A (en) * | 2017-10-25 | 2018-05-15 | 威海华菱光电股份有限公司 | Contact-type image sensor |
| CN109218558A (en) * | 2018-10-31 | 2019-01-15 | 威海华菱光电股份有限公司 | Image processing method, image processing apparatus, storage medium and processor |
| WO2020087897A1 (en) * | 2018-10-31 | 2020-05-07 | 威海华菱光电股份有限公司 | Image processing apparatus |
-
2013
- 2013-03-08 CN CN 201320106169 patent/CN203072041U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354911A (en) * | 2015-11-25 | 2016-02-24 | 威海华菱光电股份有限公司 | Image scanning method and image scanning device |
| CN108040187A (en) * | 2017-10-25 | 2018-05-15 | 威海华菱光电股份有限公司 | Contact-type image sensor |
| WO2019080631A1 (en) * | 2017-10-25 | 2019-05-02 | 威海华菱光电股份有限公司 | Contact image sensor |
| CN109218558A (en) * | 2018-10-31 | 2019-01-15 | 威海华菱光电股份有限公司 | Image processing method, image processing apparatus, storage medium and processor |
| WO2020087897A1 (en) * | 2018-10-31 | 2020-05-07 | 威海华菱光电股份有限公司 | Image processing apparatus |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |