CN202736075U - Contact image sensor - Google Patents
Contact image sensor Download PDFInfo
- Publication number
- CN202736075U CN202736075U CN 201220307734 CN201220307734U CN202736075U CN 202736075 U CN202736075 U CN 202736075U CN 201220307734 CN201220307734 CN 201220307734 CN 201220307734 U CN201220307734 U CN 201220307734U CN 202736075 U CN202736075 U CN 202736075U
- Authority
- CN
- China
- Prior art keywords
- light
- angle
- plane mirror
- light source
- image sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a contact image sensor for reading a false proof mark made of sympathetic ink or other false proof marks or patterns needing different reading angles. The contact image sensor comprises a transparent plate and a sensor substrate, as well as a frame, wherein sensitizing parts arranged linearly are lapped on the sensor substrate, lenses are arranged on the sensitizing parts of the sensor substrate, the frame can contain the sensor substrate and the lenses, the contact image sensor is characterized by being provided with a planar reflector which is positioned in the frame, the incident angel of light can be changed by regulating the relative positions of the planar reflector and a light source. According to the utility model, light emitted by the light source can be reflected on the planar reflector by a certain angle through regulating the relative positions of the planar reflector and the light source, the planar reflector reflects the light, the reflected light transmits the transparent plate by the designed angle and is radiated on an original manuscript, light irradiated on the original manuscript is reflected back to the transparent plate by the original manuscript, the reflected light can enter the lenses and be collected on the sensitizing parts, so that the designed angle is a needed angle for reading information of the false proof mark made of sympathetic ink or other false proof marks or patterns needing different reading angles, and the sensitizing parts can acquire and compare different color information by regulating different angles, thus achieving the purpose of identifying the true and false.
Description
Technical field
The present invention relates to a kind of image read-out, particularly a kind of anti-fake mark and the anti-fake mark of the different reading angulars of other needs or contact-type image sensor of image information of being made by color shifting ink that can read.
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 principal ingredient of optically variable pigments is the optic metachromatic film fragments with certain spectroscopic characteristics.The optic metachromatic film is according to the interference of light principle design of multilayer film out; 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 incident angle; Namely along with the variation of viewing angle, color shifting ink can present different colors.Hence one can see that, wants to identify 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 at 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° angle, 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 at framework 6, be provided with light source 1 in the groove, light source 1 is comprised of light source and light-guiding pillar, light-guiding pillar and light-passing board are about 45 °, light source sees through light-passing board 6 through the light that light-guiding pillar sends with about 45° angle, 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° angle, 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, the factors such as scattering cause these reflected light to comprise the light of various angles, these reflected light 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 driving circuit of signal output formed, the light that receives converts electric signal to and exports by overdrive circuit, outwards export as image (literal) information, original copy is constantly mobile, and the image information of putting 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, then shines on the original copy, and original copy is gone out these light reflections, and reflected light just enters lens, is pooled on the photographic department.It is characterized in that: the light that light source sends enters light-passing board with about 45 ° angle, then shines on the original copy.And we know, the never same direction of the anti-counterfeiting label summary that color shifting ink is made is observed and obtained different colors, by more different color output, can differentiate its true and false.And existing contact-type image sensor can't realize that multi-angle reads, and also just can't differentiate the anti-fake mark made from color shifting ink.
Summary of the invention
Technical matters to be solved by this invention is: change the incident angle of existing contact-type image sensor light by increasing plane mirror, proposes a kind ofly can read anti-fake mark and the anti-fake mark of the different reading angulars of other needs or the contact-type image sensor of image information that color shifting ink is made.
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, and can hold the sensor substrate, the framework of lens, it is characterized in that being provided with plane mirror, plane mirror is positioned at framework, by adjusting the relative position of level crossing and light source, change the incident angle of light, the present invention is by adjusting the relative position of level crossing and light source, the light that light source sends is mapped on the plane mirror with certain angle, plane mirror reflects light, reflected light sees through light-passing board with design angle and shines on the original copy, the light that shines on the original copy is reflected back light-passing board by original copy, these reflected light can enter lens and be pooled on the photographic department, and this design angle is exactly anti-fake mark or the needed angle of image information that reads color shifting ink anti-counterfeiting mark or the different reading angulars of other needs, by adjusting different angles, photographic department just can obtain different colouring informations and make comparison, thereby reaches the purpose of distinguishing true from false.
Plane mirror of the present invention is positioned at framework inside, and the angle that reads according to color shifting ink requires to calculate the installation site of plane mirror, and the installation site of plane mirror is different, and the incident angle of the light that obtains is just different.
Plane mirror of the present invention can be used aloned, also can two or morely be used in combination, to satisfy the needs of special angle.
Plane mirror of the present invention can be fixed in the framework with specific angle, also can carry out the multi-angle continuous rotation by whirligig.On the whirligig indexing mechanism can be set, manually to control incident angle, also can be connected with motor through gearing, motor is connected with control device through the numerical control line, to realize automatically adjusting the incident angle of light source.
The present invention is through adjusting the relative position of level crossing and light source, the light that light source sends is mapped on the plane mirror with certain angle, plane mirror reflects light, reflected light sees through light-passing board with design angle and shines on the original copy, the light that shines on the original copy is reflected back light-passing board by original copy, these reflected light can enter lens and be pooled on the photographic department, and this design angle is exactly anti-fake mark or the needed angle of image information that reads color shifting ink anti-counterfeiting mark or the different reading angulars of other needs, 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 another kind of structural representation of the present invention.
Fig. 4 more another kind of structural representation of the present invention.
Mark among the figure: light source 1, framework 2, sensor base plate 3, photographic department 4, plane mirror 5, lens 6, glass 7,
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
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, and the framework that can hold the sensor substrate, lens, 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 plane mirror in the framework, utilize the reflective mechanism of level crossing, by changing relative position, the angle of light source and level crossing, change incident light with respect to the incident angle of light-passing board.
Plane mirror of the present invention is positioned at framework inside, the angle that reads according to color shifting ink requires to calculate the installation site of plane mirror, the installation site of plane mirror is different, the incident angle of the light that obtains is just different, as when reading Renminbi, 100 yuan of color shifting ink anti-counterfeiting marks with 10 yuan are different, the installation site of plane mirror is just not identical yet, plane mirror of the present invention can require to calculate according to the angle that color shifting ink reads the installation site of plane mirror, in single mode, specific angle is fixed in the framework to be used, it is the plane mirror of setting a special angle in the framework, read for a kind of anti-counterfeiting mark specially, also two or more plane mirrors can be set in framework, each plane mirror is fixed in the framework with different special angles, reads the needs of color shifting ink anti-counterfeiting mark to satisfy multiple angles.
The present invention can be provided with the plane mirror whirligig, the plane mirror whirligig can be arranged in the framework, also can be arranged on outside the framework by transmission shaft, plane mirror is rotated and carries out the location of multiple angles by the plane mirror whirligig.On the plane mirror whirligig indexing mechanism can be set, interconnected relationship between the structure of plane mirror whirligig and indexing mechanism and they and plane mirror is same as the prior art, this does not give unnecessary details, the plane mirror whirligig can be by the incident angle of manual control plane reflective mirror, also can be connected with motor, motor is connected with control device through the numerical control line, realizing automatically regulating position and the angle of plane mirror, thereby reach the incident angle of adjusting light source.
The present invention can be provided with the light source whirligig, and the light source whirligig can be arranged in the framework, also can be arranged on outside the framework by transmission shaft, by the light source whirligig light source is rotated, and realizes the irradiation of multiple angles.On the light source whirligig indexing mechanism can be set, interconnected relationship between the structure of light source whirligig and indexing mechanism and they and light source is same as the prior art, this does not give unnecessary details, the light source whirligig can be by manually controlling the incident angle of light source opposite planar reflective mirror, also can be connected with motor, motor is connected with control device through the numerical control line, realizing automatically regulating the relative position of plane mirror and the incident angle of light, thereby reaches goal of the invention.
As mentioned above, by changing relative position, the angle of plane mirror and light source, just can obtain different incident angles, the illumination of different incidence angles degree is mapped on the original copy and is reflected back light-passing board by original copy, these reflected light can enter lens and be pooled on the photographic department, photographic department just can obtain different colouring informations and make comparison, thereby reaches the purpose of distinguishing true from false.
Embodiments of the invention as shown in Figure 2, the 1st, light source, the 5th, the level crossing of change light angle, the 6th, lens, the 4th, the photographic department of receiver lens 2 light that converges, i.e. 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 lens 6, sensor base plate 3,7 are arranged on the light-passing board of the lift-launch original copy on framework 2 tops, and the 8th, need the original copy, the 9th of scanning, whirligig.The structure of above-mentioned each ingredient of the present invention and the key distinction of prior art are: the increase of contact-type image sensor plane mirror, after the light that plane mirror sends light source 1 reflects, shine on the original copy 8 with specific angle incident angle, and the light that another light source 1 sends shines on the original copy 8 with different incident angles, will be collected and shine on the photographic department 4 by lens 6 through the light that the color shifting ink on the original copy 8 reflects.Spectral information after the light of different incident angles is reflected by color shifting ink is just different.The electric signal 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 2 is the incident angle that changes light by the array mode of plane mirror.Because the adjustment of incident angle needs to regulate according to the color shifting ink anti-counterfeiting mark that reads, and some angle is difficult to realize by position, the angle that changes light source simply, need to adopt this method.
Another embodiment of the present invention shown in the accompanying drawing 3, the 1st, light source, the 5th, the plane mirror of change light angle, the 6th, lens, the 4th, the photographic department of receiver lens 2 light that converges, i.e. 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 lens 5, sensor base plate 3,7 are arranged on the light-passing board of the lift-launch original copy on framework 2 tops, and the 8th, need the original copy, the 9th of scanning, whirligig.Present embodiment is that plane mirror 5 is connected with whirligig 9. whirligig can by manual operation, also can operate by automaton.The advantage of this scheme is: same product flexibility is high, and demand, the degree of regulation that can satisfy various different angles are high.
Claims (4)
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, and the framework that can hold the sensor substrate, lens, it is characterized in that being provided with in the framework plane mirror, by adjusting relative position, the angle of light source and plane mirror, can adjust light source with respect to the incident angle of light-passing board.
2. contact-type image sensor according to claim 1, it is characterized in that the angle that reads according to color shifting ink requires to calculate installation site and the angle of plane mirror, at least two plane mirrors are set in framework, and each plane mirror is fixed in the framework on the ad-hoc location with special angle.
3. contact-type image sensor according to claim 1 is characterized in that being provided with the light source whirligig, and light source rotates by the light source whirligig, changes the incident angle of plane mirror.
4. contact-type image sensor according to claim 1 is characterized in that being provided with the plane mirror whirligig, and plane mirror rotates the angle of adjusting plane mirror by the plane mirror whirligig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307734 CN202736075U (en) | 2012-06-28 | 2012-06-28 | Contact image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307734 CN202736075U (en) | 2012-06-28 | 2012-06-28 | Contact image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736075U true CN202736075U (en) | 2013-02-13 |
Family
ID=47661753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220307734 Expired - Fee Related CN202736075U (en) | 2012-06-28 | 2012-06-28 | Contact image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736075U (en) |
-
2012
- 2012-06-28 CN CN 201220307734 patent/CN202736075U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102739906A (en) | Contact image sensor | |
| CN102006391A (en) | Contact type image sensor | |
| CN102014234A (en) | Contact image sensor | |
| CN208547955U (en) | A kind of asymmetric light adjusting type fingerprint recognition mould group being hidden in below screen | |
| CN202736075U (en) | Contact image sensor | |
| CN204013720U (en) | Skew ray plate and there is its contact-type image sensor | |
| CN201910857U (en) | Contact image sensor | |
| CN203072041U (en) | Contact image sensor | |
| CN201919075U (en) | Contact-type image sensor | |
| CN203349171U (en) | Light-emitting device and image sensor | |
| CN106303145A (en) | Image read-out | |
| CN103685833B (en) | Lighting apparatus, image sensor cell and paper type recognition | |
| CN103335279B (en) | Light-emitting device and imageing sensor | |
| CN205640476U (en) | Function calibrated scale and universal meter are shaded | |
| CN203810205U (en) | Light-emitting device and imaging sensor | |
| CN204706038U (en) | Similar laser bar code reader | |
| CN203941566U (en) | A kind of incorgruous light digital image collecting device | |
| KR200260592Y1 (en) | Light sensing system for automatic meter reading | |
| CN203072042U (en) | Contact image sensor | |
| CN203800994U (en) | Light-passing plate for image sensor and image sensor | |
| CN102984424B (en) | Contact image sensor | |
| CN103968303B (en) | Light-emitting device and image sensor | |
| CN211477401U (en) | A filtering mechanism for improving spectrum appearance detects precision | |
| CN219497117U (en) | Optically variable ink detection module structure | |
| CN202931447U (en) | Linear image reading device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20200628 |