CN102006391A - Contact type image sensor - Google Patents
Contact type image sensor Download PDFInfo
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- CN102006391A CN102006391A CN2010105809692A CN201010580969A CN102006391A CN 102006391 A CN102006391 A CN 102006391A CN 2010105809692 A CN2010105809692 A CN 2010105809692A CN 201010580969 A CN201010580969 A CN 201010580969A CN 102006391 A CN102006391 A CN 102006391A
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000004040 coloring Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000003458 metachromatic effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
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Abstract
The invention discloses a contact type image sensor for reading an anti-fake mark made of a color changing ink, which is characterized by comprising a support frame, wherein a light-passing board is arranged on the support frame; a frame and the light-passing board are connected by a rotating device; the included angle between the light-passing board and a lens axis in the frame can be adjusted by the rotating device; a light source of the invention can comprise a light source and a light guide column, and also can comprise an LED array; the light source and a lens can form a certain angle, and also can be parallel; light emitted by the light source can be emitted at a required angle by adjusting the rotating device, and irradiated to an original copy through the light-passing board; the light irradiated on the original copy is reflected by the original copy back to the light-passing board; the reflected light enters the lens and is converged on a light-sensing part; the angle is the required angle for reading the anti-fake mark made of the color changing ink; and by adjusting different angles, the light-sensing part can acquire and compare different color information, thereby achieving the purpose of distinguishing the true from the false.
Description
Technical field
The present invention relates to a kind of image read-out, particularly a kind of contact-type image sensor that can read the anti-fake mark of making by color shifting ink.
Background technology
We know that the color changeable effect of optical disclour printing ink is to be produced by the optically variable pigments in the printing ink.The main component of optically variable pigments is the optic metachromatic film fragments with certain spectroscopic characteristics.The optic metachromatic film is to come out according to the interference of light principle design of plural layers; It has the material of multiple different refractivity, is deposited on the identical carrier successively to form.Its reflectance spectrum can change with the change of incidence angle; Promptly along with the variation of viewing angle, color shifting ink can present different colors.Hence one can see that, wants to discern the anti-fake mark that color shifting ink is made, and must change incident angle.
Fig. 1 is the sectional drawing of existing contact-type image sensor, 1 is illuminating source among the figure, the 5th, lens, the 4th, the photographic department (photosensitive integrated circuit) of receiver lens 5 light that converges, the 3rd, the sensor base plate of the photosensitive integrated circuit 4 that lift-launch is arranged in a straight line, the 2nd, hold the framework of light source 1, lens 5, sensor base plate 3,6 are arranged on the light-passing board of the lift-launch original copy on the framework 2, and 7 is original copy.
In above-mentioned contact-type image sensor, light-passing board 6 is fixed on the framework 2, the axis of the lens 5 in light-passing board 6 and the framework 2 is vertical configuration, be parallel shape with sensor base plate 3, light source 1 be provided with two kinds, a kind of is to be provided with the closed pockets that holds light source 1 on framework 6, closed pockets is provided with relative light-passing board and is light inlet window about 45 °, the wide part that light source 1 sends sees through light inlet window with about 45, light-passing board 6, shine on the original copy 7 of outside, another kind is to be provided with the groove that holds light source 1 on framework 6, be provided with light source 1 in the groove, light source 1 is made up of light source and leaded light post, leaded light post and light-passing board are about 45 °, light source sees through light-passing board 6 through the light that the leaded light post sends with about 45, shine on the original copy 7 of outside, lens 5 are vertical configuration with light-passing board 6, as mentioned above, the wide part that light source 1 sends sees through light-passing board 6 with about 45, shine on the original copy 7 of outside, character area light on the original copy 7 is partially absorbed, and be reflected at the light of other white portion of original copy, because reflection, refraction, factors such as scattering cause these reverberation to comprise the light of various angles, these reverberation pass light-passing board 6, collected by lens 5, shine the photosensitive area of the photographic department 4 on the sensor base plate 3, photographic department 4 be by many photosensitive areas and can will shine the light of each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output formed, the light that receives converts the signal of telecommunication to after overdrive circuit output, outwards export as image (literal) information, original copy constantly moves, and the image information of being put down in writing on it (literal) will be read continuously.
Have following problem in the above-mentioned contact-type image sensor: the light that light source sends enters light-passing board with about 45 ° angle, shines then on the original copy, and original copy reflects away these light, and reverberation just enters lens, is pooled on the photographic department.It is characterized in that: the relative position of light source and light-passing board remains unchanged, and therefore, light source also can remain unchanged with respect to the relative position of original copy.And we know, the anti-fake mark that color shifting ink is made can be observed different colors from different directions, if with fixing incident angle irradiation color shifting ink, just can't read different colouring informations.So existing contact-type image sensor can't be discerned the anti-fake mark that color shifting ink is made.
Summary of the invention
Technical problem to be solved by this invention is: change the incident angle that relative angle between light-passing board and the framework changes existing contact-type image sensor light by rotation, propose a kind of contact-type image sensor that can read the anti-fake mark that color shifting ink makes.
The present invention can reach by following measure:
A kind of contact-type image sensor, comprise light-passing board, sensor base plate, carry the photographic department that is arranged in a straight line on the sensor base plate, be provided with lens above the photographic department on the sensor base plate, the side of lens is provided with light source, and the framework that can hold the sensor substrate, lens, light source, it is characterized in that being provided with bracing frame, bracing frame is provided with light-passing board, and framework is connected through whirligig with light-passing board, can adjust angle between lens axis in light-passing board and the framework by whirligig.
Whirligig of the present invention is arranged on the top of lens, is the axis rotation with the focal position of lens, the angle between can adjusting between framework and light-passing board so that light source with different angular illumination to original copy.
Whirligig of the present invention comprises bearing pedestal, bearing, rotating shaft and link, on the rotating shaft indexing mechanism can be set, manually to control the angle of light-passing board and framework, also can be connected with motor through transmission device, motor is connected with control device through the numerical control line, to reach the angle of automatic control light-passing board and framework.
Frame fixation among the present invention is motionless, and bracing frame is provided with bearing pedestal, and rotating shaft is connected with bearing pedestal, and light-passing board is fixed on the rotating shaft through connecting plate, rotates rotating shaft and can make the light-passing board rotation, to adjust the angle between the lens axis in light-passing board and the framework.
Bracing frame among the present invention maintains static, light-passing board is fixed on the bracing frame, bracing frame is provided with bearing pedestal, rotating shaft is connected with bearing pedestal, framework is fixed on the rotating shaft through connecting plate through connecting plate, rotate rotating shaft and can make the framework rotation, with the angle between lens axis and light-passing board in the adjustment framework by connecting plate.
The present invention can be provided with original document feeder above light-passing board, original document feeder is installed on the bracing frame, to increase work efficiency.
Light source of the present invention can be made up of light source and leaded light post, also can form by led array, light source and lens can have a certain degree, also can be parallel with lens, through adjusting whirligig, the light that light source sends will penetrate with the angle that requires, see through light-passing board and shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation can enter lens and be pooled on the photographic department, and this angle reads the needed angle of color shifting ink anti-counterfeiting mark exactly, by adjusting different angles, photographic department just can obtain different colouring informations and make comparison, thereby reaches the purpose of distinguishing true from false.
Description of drawings:
Fig. 1 is the sectional drawing of existing contact-type image sensor.
Fig. 2 is a kind of structural representation of the present invention.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is an another kind of structural representation of the present invention.
Fig. 5 is the left view of Fig. 4.
Mark among the figure: light source 1, framework 2, sensor base plate 3, photographic department 4, lens 5, light-passing board 6, original copy 7, drive unit 8, transmission device 9, bearing 10, bearing pedestal 11, power transmission shaft 12, connecting plate 13, original document feeder 14, bracing frame 15
Embodiment:
Below in conjunction with accompanying drawing the present invention is further described:
A kind of contact-type image sensor, comprise light-passing board, sensor base plate, carry the photographic department that is arranged in a straight line on the sensor base plate, be provided with lens above the photographic department on the sensor base plate, the side of lens is provided with light source, and can hold the sensor substrate, lens, the framework of light source, said structure and connected mode are same as the prior art, this does not give unnecessary details, the invention is characterized in and be provided with bracing frame, bracing frame is provided with light-passing board, and framework is connected through whirligig with light-passing board, can adjust angle between lens axis in light-passing board and the framework by whirligig.
Whirligig of the present invention is arranged on the top of lens, is the axis rotation with the focal position of lens, the angle between can adjusting between framework and light-passing board so that light source with different angular illumination to original copy.
Whirligig of the present invention comprises bearing pedestal, bearing, rotating shaft and link, on the rotating shaft indexing mechanism can be set, manually to control the angle of light-passing board and framework, also can be connected with motor through transmission device, motor is connected with control device through the numerical control line, to reach the angle of automatic control light-passing board and framework.
Frame fixation among the present invention is motionless, and bracing frame is provided with bearing pedestal, and rotating shaft is connected with bearing pedestal, and light-passing board is fixed on the rotating shaft through connecting plate, rotates rotating shaft and can make the light-passing board rotation, to adjust the angle between the lens axis in light-passing board and the framework.
Bracing frame among the present invention maintains static, light-passing board is fixed on the bracing frame, bracing frame is provided with bearing pedestal, rotating shaft is connected with bearing pedestal, framework is fixed on the rotating shaft through connecting plate through connecting plate, rotate rotating shaft and can make the framework rotation, with the angle between lens axis and light-passing board in the adjustment framework by connecting plate.
The present invention can be provided with original document feeder above light-passing board, original document feeder is installed on the bracing frame, to increase work efficiency.
Light source of the present invention can be made up of light source and leaded light post, also can form by led array, light source and lens can have a certain degree, also can be parallel with lens, through adjusting whirligig, the light that light source sends will penetrate with the angle that requires, see through light-passing board and shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation can enter lens and be pooled on the photographic department, and this angle reads the needed angle of color shifting ink anti-counterfeiting mark exactly, by adjusting different angles, photographic department just can obtain different colouring informations and make comparison, thereby reaches the purpose of distinguishing true from false.
As accompanying drawing 2, shown in Figure 3, the 1st, illuminating source, the 5th, lens, the 4th, the photographic department of receiver lens 2 light that converges, it is photosensitive integrated circuit, the 3rd, the sensor base plate of the photosensitive integrated circuit that lift-launch is arranged in a straight line, the 2nd, hold the framework of light source 1, lens 5, sensor base plate 3,6 are arranged on the light-passing board of the lift-launch original copy on framework 2 tops, and the 7th, the original copy, the 8th that need scan, drive unit, the 9th, transmission device, the 10th, bearing, the 11st, bearing pedestal, the 12nd, rotating shaft, the 13rd, connecting plate, the 14th, original document feeder, the 15th, bracing frame.The structure of above-mentioned each part of the present invention is with the main distinction of prior art: contact-type image sensor and light-passing board 6 are not parallel placements, but rotate by drive unit 8 driven rotary axles 12, and rotating shaft 12 couples together by connecting plate 13 and framework, is rotated so drive unit 8 can drive framework 2.By rotation, light-passing board 6 just can change with the angle of framework 2 like this.Under different angles, the light that illuminating source 1 sends will shine with different incidence angles on the original copy 7, will be collected and shine on the photographic department 4 by lens 5 through the light that the color shifting ink on the original copy 7 reflects.Spectral information after the light that incidence angle is different is reflected by color shifting ink is just different.The signal of telecommunication that different spectral informations is changed out is also different, through relatively, just can reach the purpose of distinguishing true from false.
Embodiment shown in the accompanying drawing 3,4 is fixed in light-passing board on the bracing frame 15, and drive unit is rotated by transmission device drive framework and changes angle.
The adjustment of incidence angle needs to regulate according to the color shifting ink anti-counterfeiting mark that reads.The adjusting of angle can be controlled automatically, also can manually control according to structure, needs.
Accompanying drawing 4, shown in Figure 5 is another embodiment of the present invention, the 1st, illuminating source, the 5th, lens, the 4th, the photographic department of receiver lens 2 light that converges, it is photosensitive integrated circuit, the 3rd, the sensor base plate of the photosensitive integrated circuit that lift-launch is arranged in a straight line, the 2nd, hold light source 1, lens 5, the framework of sensor base plate 3,6 are arranged on the light-passing board of the lift-launch original copy on framework 2 tops, and the 7th, need the original copy that scans, the 8th, drive unit, the 9th, transmission device, the 10th, bearing, the 11st, bearing pedestal, the 12nd, rotating shaft, the 13rd, connecting plate, the 14th, original document feeder, the 15th, bracing frame.Present embodiment is that framework 2 is fixed on the bracing frame 15, and drive unit 8 drives light-passing board 6 by transmission device 9 and is rotated the angle that changes framework 2 and light-passing board, thereby changes the incident angle of light source.Its principle that reads is identical with example one, this not tired stating.
Claims (7)
1. contact-type image sensor, comprise light-passing board, sensor base plate, carry the photographic department that is arranged in a straight line on the sensor base plate, be provided with lens above the photographic department on the sensor base plate, the side of lens is provided with light source, and the framework that can hold the sensor substrate, lens, light source, it is characterized in that being provided with bracing frame, bracing frame is provided with light-passing board, and framework is connected through whirligig with light-passing board, by the angle between the lens axis in whirligig adjustment light-passing board and the framework.
2. contact-type image sensor according to claim 1 is characterized in that described whirligig is above lens.
3. contact-type image sensor according to claim 1 is characterized in that described whirligig comprises bearing pedestal, bearing, rotating shaft and link.
4. according to claim 1,3 described contact-type image sensors, it is characterized in that frame fixation is motionless, bracing frame is provided with bearing pedestal, and rotating shaft is connected with bearing pedestal, and light-passing board is fixed on the rotating shaft through connecting plate.
5. according to claim 1,3 described contact-type image sensors, it is characterized in that bracing frame maintains static, light-passing board is fixed on the bracing frame, and bracing frame is provided with bearing pedestal, rotating shaft is connected with bearing pedestal, and framework is fixed on the rotating shaft through connecting plate through connecting plate.
6. according to claim 1,3 described contact-type image sensors, it is characterized in that the light-passing board top is provided with original document feeder.
7. contact-type image sensor according to claim 3 is characterized in that rotating shaft is connected with motor through transmission device, and motor is connected with control device through the numerical control line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105809692A CN102006391A (en) | 2010-12-09 | 2010-12-09 | Contact type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105809692A CN102006391A (en) | 2010-12-09 | 2010-12-09 | Contact type image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102006391A true CN102006391A (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105809692A Pending CN102006391A (en) | 2010-12-09 | 2010-12-09 | Contact type image sensor |
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| CN (1) | CN102006391A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739906A (en) * | 2012-06-28 | 2012-10-17 | 威海华菱光电股份有限公司 | Contact image sensor |
| CN102917153A (en) * | 2012-11-20 | 2013-02-06 | 威海华菱光电股份有限公司 | Linear array image reading device |
| CN102984425A (en) * | 2012-12-18 | 2013-03-20 | 威海华菱光电股份有限公司 | Contact-type image sensor for hologram image information identification |
| CN103002192A (en) * | 2012-12-10 | 2013-03-27 | 威海华菱光电股份有限公司 | Image recognition device and image reading device |
| CN103335279A (en) * | 2013-07-04 | 2013-10-02 | 威海华菱光电股份有限公司 | Light-emitting device and image sensor |
| CN103871151A (en) * | 2014-03-11 | 2014-06-18 | 威海华菱光电股份有限公司 | Contact image detection device and application method thereof |
| CN108256416A (en) * | 2017-11-30 | 2018-07-06 | 北京集创北方科技股份有限公司 | Biometric detection method and system |
| CN110099190A (en) * | 2019-04-22 | 2019-08-06 | 威海华菱光电股份有限公司 | Contact-type image sensor and detection device |
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| CN101783855A (en) * | 2009-01-21 | 2010-07-21 | 威海华菱光电有限公司 | Contact-type image sensor |
| CN201910857U (en) * | 2010-12-09 | 2011-07-27 | 威海华菱光电有限公司 | Contact image sensor |
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2010
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739906A (en) * | 2012-06-28 | 2012-10-17 | 威海华菱光电股份有限公司 | Contact image sensor |
| CN102917153A (en) * | 2012-11-20 | 2013-02-06 | 威海华菱光电股份有限公司 | Linear array image reading device |
| CN102917153B (en) * | 2012-11-20 | 2018-01-16 | 威海华菱光电股份有限公司 | linear image reading device |
| US9846984B2 (en) | 2012-12-10 | 2017-12-19 | Weihai Hualing Opto-Electronics Co., Ltd. | Device for recognizing image and device for reading image |
| CN103002192B (en) * | 2012-12-10 | 2015-05-20 | 威海华菱光电股份有限公司 | Image recognition device and image reading device |
| CN103002192A (en) * | 2012-12-10 | 2013-03-27 | 威海华菱光电股份有限公司 | Image recognition device and image reading device |
| CN102984425B (en) * | 2012-12-18 | 2014-12-10 | 威海华菱光电股份有限公司 | Contact-type image sensor for hologram image information identification |
| CN102984425A (en) * | 2012-12-18 | 2013-03-20 | 威海华菱光电股份有限公司 | Contact-type image sensor for hologram image information identification |
| CN103335279A (en) * | 2013-07-04 | 2013-10-02 | 威海华菱光电股份有限公司 | Light-emitting device and image sensor |
| CN103335279B (en) * | 2013-07-04 | 2015-12-02 | 威海华菱光电股份有限公司 | Light-emitting device and imageing sensor |
| CN103871151A (en) * | 2014-03-11 | 2014-06-18 | 威海华菱光电股份有限公司 | Contact image detection device and application method thereof |
| CN108256416A (en) * | 2017-11-30 | 2018-07-06 | 北京集创北方科技股份有限公司 | Biometric detection method and system |
| CN108256416B (en) * | 2017-11-30 | 2021-04-02 | 北京集创北方科技股份有限公司 | Biometric detection method and system |
| CN110099190A (en) * | 2019-04-22 | 2019-08-06 | 威海华菱光电股份有限公司 | Contact-type image sensor and detection device |
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Application publication date: 20110406 |