CN201910857U - Contact image sensor - Google Patents
Contact image sensor Download PDFInfo
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- CN201910857U CN201910857U CN 201020650366 CN201020650366U CN201910857U CN 201910857 U CN201910857 U CN 201910857U CN 201020650366 CN201020650366 CN 201020650366 CN 201020650366 U CN201020650366 U CN 201020650366U CN 201910857 U CN201910857 U CN 201910857U
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- 230000003068 static effect Effects 0.000 claims description 3
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- 230000001678 irradiating effect Effects 0.000 abstract 1
- 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
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Abstract
The utility model discloses a contact image sensor for reading false-proof marks made of variable-color ink. The contact image sensor is characterized in that the sensor is provided with a support frame, a light transmitting plate is arranged on the support frame, a frame is connected with the light transmitting plate by the aid of a rotating device, and the included angle between the light transmitting plate and a lens axis in the frame can be adjusted by the rotating device. A light source of the contact image sensor can comprise a light source and a light guide post and can also comprise an LED array, the light source and a lens can form a certain angle and can also be parallel, light emitted by the light source can irradiate at a required angle by adjusting the rotating device, penetrates through the light transmitting plate and irradiates on an original manuscript, the light irradiating on the original manuscript is reflected by the original manuscript back to the light transmitting plate, the reflected light can enter the lens and can be collected on a light sensing portion, the angle is needed for reading the false-proof marks made of the variable-color ink, and the light sensing portion can obtain and compare different color information by adjusting different angles, so that the purpose of authenticity identification is achieved.
Description
Technical field
The utility model relates to a kind of image read-out, particularly a kind of contact-type image sensor that can read the anti-fake mark of being made 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 in the utility model 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 utility model 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 described in the utility model 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 described in the utility model 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 in the utility model 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, rotate 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 in the utility model 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, 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 utility model 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 utility model 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 utility model.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is an another kind of structural representation of the present utility model.
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 utility model 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, of the present utility model being characterised in that is 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 described in the utility model 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 described in the utility model 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 in the utility model 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, rotate 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 in the utility model 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, 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 utility model 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 utility model 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 utility model 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 utility model, 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. contact-type image sensor according to claim 3 is characterized in that frame fixation 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.
5. contact-type image sensor according to claim 3 is characterized in that bracing frame maintains static, and light-passing board is fixed on the bracing frame, and bracing frame is provided with bearing pedestal, and rotating shaft is connected with bearing pedestal, and framework is fixed on the rotating shaft through connecting plate.
6. contact-type image sensor according to claim 1 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 |
|---|---|---|---|
| CN 201020650366 CN201910857U (en) | 2010-12-09 | 2010-12-09 | Contact image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020650366 CN201910857U (en) | 2010-12-09 | 2010-12-09 | Contact image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910857U true CN201910857U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020650366 Expired - Fee Related CN201910857U (en) | 2010-12-09 | 2010-12-09 | Contact image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201910857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006391A (en) * | 2010-12-09 | 2011-04-06 | 威海华菱光电有限公司 | Contact type 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 |
-
2010
- 2010-12-09 CN CN 201020650366 patent/CN201910857U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006391A (en) * | 2010-12-09 | 2011-04-06 | 威海华菱光电有限公司 | Contact type 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WEIHAI HUALING OPTO-ELECTRONICS CO., LTD. Free format text: FORMER NAME: WEIHAI HUALING OPTOELECTRONIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 264209 Weihai high tech Industrial Development Zone, Shandong Torch Road, No. 159 Patentee after: Weihai Hualing Opto-electronics Co.,Ltd. Address before: 264209 Torch Road 159, hi tech District, Shandong, Weihai Patentee before: Weihai Hualing Optoelectronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20181209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |