CN202772975U - Contact image sensor - Google Patents
Contact image sensor Download PDFInfo
- Publication number
- CN202772975U CN202772975U CN 201220443995 CN201220443995U CN202772975U CN 202772975 U CN202772975 U CN 202772975U CN 201220443995 CN201220443995 CN 201220443995 CN 201220443995 U CN201220443995 U CN 201220443995U CN 202772975 U CN202772975 U CN 202772975U
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- light source
- row
- image sensor
- angles
- different
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Abstract
The utility model relates to an image reading device, and detailedly discloses a contact image sensor. The contact image sensor is provided with a frame, a circuit board is arranged under the frame, photovoltaic conversion chips are arranged on the circuit board, lenses are installed over the photovoltaic conversion chips, one side or two sides of the lenses are provided with light sources, and a glass plate is arranged over the frame. The contact image sensor is characterized in that the contact image sensor is provided with at least two rows of lenses which are arranged at different angles or at least two rows of light sources which are arranged at different angles, wherein the included angles between the light emitting centers of the rows of light sources and the center of a lens are different or the included angles between the light emitting center of a light source and the centers of the rows of lenses are different, two rows of light sources which are arranged at different angles can be at least two rows of light sources (wherein the light emitting center angles of the rows of light sources are different) or can be a row of light sources, each light source is provided with at least two light emitting grooves which are arranged at different angles to make a row of light sources emit light beams having at least two angles so as to identify anti-fake image information, such as the variable ink denomination number, a hologram, etc., which can display different colors or patterns at different angles on a banknote.
Description
Technical field
The present invention relates to the reading device of image, at length say it is a kind of contact-type image sensor that multi-angle reads that has.
Background technology
We know, the basic structure of contact-type image sensor, below framework, to be provided with wiring board, wiring board is provided with the opto-electronic conversion chip, and opto-electronic conversion chip top is equipped with lens, and the side of lens is provided with light source, light source can be located at a side of lens, also can be located at the both sides of lens, the framework top is provided with the glass plate of carrying image original copy, and existing contact-type image sensor only has a kind of reading angular usually.Expansion along with application, function to contact-type image sensor proposes increasing requirement, such as many places anti-counterfeiting information on the banking system paper money discrimination facility identification bank note, color shifting ink denomination numeral wherein, hologram etc. all are can see different colors or pattern anti-fake image information with different angles.
Summary of the invention
Technical problem to be solved by this invention is: multiple reading angular is provided, can realizes requiring to read with different angles the contact-type image sensor of the false distinguishing recognition function of different images.
The present invention's technical scheme that adopts of dealing with problems is:
A kind of contact-type image sensor, be provided with framework, the framework below is provided with wiring board, wiring board is provided with the opto-electronic conversion chip, opto-electronic conversion chip top is equipped with lens, lens one side or both sides are provided with light source, the framework top is provided with glass plate, it is characterized in that being provided with at least the lens of two row different angles or the light source of at least two row different angles, make the luminescence center of every row light source not identical with the angle of lens centre, or the luminescence center of light source is not identical with the angle of every row lens centre, carries out different combined transformations according to the angle of anti-counterfeiting image needs on the picture original, to adapt to the different anti-counterfeiting image information that show different colours or pattern of scanning angle.
It is of the present invention that the light source of two row different angles is arranged can be at least two row light sources, the luminescence center angle of every row light source is not identical, it also can be a row light source, at least be provided with the luminous groove of two kinds of different angles on the light source, make same row light source send the light of at least two kinds of angles, to adapt to the different anti-counterfeiting image information that show different colours or pattern of scanning angle.
The present invention can carry out different combined transformations according to the angle of anti-counterfeiting image needs on the picture original, can show the anti-counterfeiting image information of different colours or pattern with different angles with the color shifting ink denomination numeral on the identification bank note, hologram etc.
Description of drawings
Fig. 1 to Fig. 4 is the cutaway view under the different enforcement states of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of contact-type image sensor, framework 1, framework 1 below is provided with wiring board 5, and wiring board 5 is provided with opto-electronic conversion chip 6-1,6-2, and opto-electronic conversion chip 6-1,6-2 top is equipped with lens 4-1,4-2, the lens one or both sides are provided with light source 2, framework 1 top is provided with glass plate 3, and is above-mentioned same as the prior art, and belonging to those skilled in the art should know.
As shown in Figure 1, the invention is characterized in lens 4-1,4-2 with multiple row different angles, light source luminescent center and different lines lens centre acutangulate or the obtuse angle.
As shown in Figure 2, feature of the present invention also is to have light source 2-1,2-2, the 2-3 of multiple row different angles, and each light source luminescent and same row lens centre acutangulate or the obtuse angle.
As shown in Figure 3, on the basis of Fig. 3, lens centre of the present invention can be that what to tilt also can be vertical.
As shown in Figure 4, on the basis of Fig. 4, the light source of multiple row different angles of the present invention can be also can be in the lens both sides in lens one side.
Claims (3)
1. contact-type image sensor, be provided with framework, the framework below is provided with wiring board, wiring board is provided with the opto-electronic conversion chip, opto-electronic conversion chip top is equipped with lens, lens one side or both sides are provided with light source, the framework top is provided with glass plate, it is characterized in that being provided with at least the lens of two row different angles or the light source of at least two row different angles, make the luminescence center of every row light source not identical with the angle of lens centre, or the luminescence center of light source is not identical with the angle of every row lens centre, carries out different combined transformations according to the angle of anti-counterfeiting image needs on the picture original.
2. a kind of contact-type image sensor according to claim 1, the light source that it is characterized in that two row different angles is to be provided with at least two row light sources, the luminescence center angle of every row light source is not identical.
3. a kind of contact-type image sensor according to claim 1 is characterized in that light source is to be provided with a row light source, is provided with at least the luminous groove of two kinds of different angles on the light source, makes same row light source send the light of at least two kinds of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220443995 CN202772975U (en) | 2012-09-03 | 2012-09-03 | Contact image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220443995 CN202772975U (en) | 2012-09-03 | 2012-09-03 | Contact image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772975U true CN202772975U (en) | 2013-03-06 |
Family
ID=47779515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220443995 Expired - Fee Related CN202772975U (en) | 2012-09-03 | 2012-09-03 | Contact image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772975U (en) |
-
2012
- 2012-09-03 CN CN 201220443995 patent/CN202772975U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20210903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |