CN102739906A - Contact image sensor - Google Patents
Contact image sensor Download PDFInfo
- Publication number
- CN102739906A CN102739906A CN2012102179074A CN201210217907A CN102739906A CN 102739906 A CN102739906 A CN 102739906A CN 2012102179074 A CN2012102179074 A CN 2012102179074A CN 201210217907 A CN201210217907 A CN 201210217907A CN 102739906 A CN102739906 A CN 102739906A
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- China
- Prior art keywords
- light
- angle
- plane mirror
- light source
- image sensor
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- 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.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
- H04N1/031—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array the photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0081—Image reader
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Facsimile Scanning Arrangements (AREA)
- Facsimile Heads (AREA)
Abstract
The invention discloses a contact image sensor for reading information of a false proof mark made of sympathetic ink or other false proof marks 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 invention, 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 making by color shifting ink of image information 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 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 demonstrate various 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, and lens, the 4th, 5 of receiver lenss converge the photographic department (photosensitive integrated circuit) of light; 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, and 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 on framework 6, to be provided with the closed pockets that holds light source 1; Closed pockets is provided with relative light-passing board and is the light inlet window about 45 °, and the wide part that light source 1 sends sees through light inlet window, light-passing board 6 with about 45, shines on the original copy 7 of outside; Another kind is on framework 6, to be provided with the groove that holds light source 1, is provided with light source 1 in the groove, and light source 1 is made up of light source and leaded light post; Leaded light post and light-passing board are about 45 °, and 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, and as stated, 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, the character area light on the original copy 7 is partially absorbed, and is reflected at the light of other white portion of original copy; Because factors such as reflection, refraction, scattering cause these reverberation to comprise the light of various angles, these reverberation pass light-passing board 6, are 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 is 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 gets into light-passing board with about 45 ° angle, shines then on the original copy, and original copy reflects away these light, and reverberation just gets into lens, is pooled on the photographic department.It is characterized in that: the light that light source sends gets into light-passing board with about 45 ° angle, shines on the original copy then.And we know, the anti-counterfeiting label summary that color shifting ink is made never with direction observe and to obtain various colors, through relatively various colors 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 problem to be solved by this invention is: through increasing the incidence angle that plane mirror changes existing contact-type image sensor light, 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 through following measure:
A kind of contact-type image sensor comprises light-passing board, sensor base plate, carries 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 plane mirror; Plane mirror is positioned at framework, through the relative position of adjustment level crossing and light source, changes the incident angle of light; The present invention is through the relative position of adjustment level crossing and light source; The light that light source sends is mapped on the plane mirror with certain angle, and plane mirror reflects light, and reverberation sees through light-passing board with design angle and shines on the original copy; Shine light on the original copy by original copy reflected back light-passing board; These reverberation can get into 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, through adjusting different angles; Photographic department just can obtain various colors information 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 incidence angle of the light that is obtained is just different.
Plane mirror of the present invention can be single use, also can two or more combinations use, to satisfy the needs of special angle.
Plane mirror of the present invention can also can carry out multi-angle through whirligig and rotate continuously with specific fixed angle in framework.On the whirligig indexing mechanism can be set, manually to control incident angle, also can be connected with motor through transmission device, motor is connected with control device through the numerical control line, to realize adjusting automatically the incident angle of light source.
The present invention is through the relative position of adjustment level crossing and light source; The light that light source sends is mapped on the plane mirror with certain angle, and plane mirror reflects light, and reverberation sees through light-passing board with design angle and shines on the original copy; Shine light on the original copy by original copy reflected back light-passing board; These reverberation can get into 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, through adjusting different angles; Photographic department just can obtain various colors information 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 an another kind of structural representation of the present invention.
Fig. 4 another kind of again 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
Below in conjunction with accompanying drawing the present invention is further described:
A kind of contact-type image sensor comprises light-passing board, sensor base plate, carries 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 is identical with connected mode and prior art, and this does not give unnecessary details; The invention is characterized in and be provided with plane mirror in the framework; Utilize the reflective principle of level crossing,, change the incident angle of incident light with respect to light-passing board through changing relative position, the angle of light source and level crossing.
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, and the installation site of plane mirror is different, and the incidence angle of the light that is obtained is just different; As when reading RMB; 100 yuan of color shifting ink anti-counterfeiting marks with 10 yuan are different, and the installation site of plane mirror is also just inequality, and plane mirror of the present invention can require to calculate the installation site of plane mirror according to the angle that color shifting ink reads; Use in framework with single mode, specific fixed angle; Be the plane mirror of setting a special angle in the framework, read to a kind of anti-counterfeiting mark specially, also two or more plane mirrors can be set in framework; Each plane mirror all is fixed in the framework with different special angles, to satisfy the needs that multiple angles reads the color shifting ink anti-counterfeiting mark.
The present invention can be provided with the plane mirror whirligig, and the plane mirror whirligig can be arranged in the framework, also can be arranged on outside the framework through power transmission shaft, plane mirror is rotated and carries out the location of multiple angles through whirligig.On the whirligig indexing mechanism can be set; The structure of whirligig and indexing mechanism and they are identical with interconnected relationship and prior art between plane mirror, and this does not give unnecessary details, and whirligig can be through 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 regulating automatically the position and the angle of plane mirror, thereby reaches the incident angle of adjustment 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 through power transmission shaft, through whirligig light source is rotated, and realizes the irradiation of multiple angles.On the whirligig indexing mechanism can be set; The structure of whirligig and indexing mechanism and they are identical with interconnected relationship and prior art between light source, and this does not give unnecessary details, and whirligig can be through the manual incident angle of control light source opposite planar reflective mirror; Also can be connected with motor; Motor is connected with control device through the numerical control line, realizing the regulating relative position of plane mirror and the incident angle of light automatically, thereby reaches goal of the invention.
As stated; Through changing relative position, the angle of plane mirror and light source; Just can obtain the different incident angle, the illumination of different incidence angles degree is mapped on the original copy by original copy reflected back light-passing board, and these reverberation can get into lens and be pooled on the photographic department; Photographic department just can obtain various colors information and make comparison, thereby reaches the purpose of distinguishing true from false.
Shown in accompanying drawing 2, be embodiments of the invention, the 1st, light source, the 5th, the level crossing of change light angle; The 6th, lens, the 4th, 2 photographic departments that converge light of receiver lens, promptly 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, drive unit.The structure of above-mentioned each part of the present invention and the main 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 incidence angle; And the light that another light source 1 sends shines on the original copy 8 with incidence angles, will 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 angle is reflected by color shifting ink is just different.The signal of telecommunication that the different spectrum information translation goes 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 through the compound mode of plane mirror.Because the adjustment of incidence angle needs to regulate according to the color shifting ink anti-counterfeiting mark that reads, and some angle is difficult to realize through position, the angle that changes light source simply, need to adopt this method.
Be 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, 2 photographic departments that converge light of receiver lens, promptly 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, drive unit.Present embodiment is that plane mirror 5 is connected with drive unit 9. drive unit can also can be operated through automatic control equipment through manual operation.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 (5)
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,, can adjust the incident angle of light source with respect to light-passing board through relative position, the angle of adjustment light source and plane mirror.
2. the angle that reads according to color shifting ink requires to calculate the installation site and the angle of plane mirror, single with specific fixed angle in framework.
3. 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 the 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.
4. contact-type image sensor according to claim 1 is characterized in that being provided with whirligig, and light source rotates through whirligig, changes the incident angle of plane mirror.
5. contact-type image sensor according to claim 1 is characterized in that being provided with whirligig, and plane mirror rotates through whirligig, the angle of adjustment plane mirror.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102179074A CN102739906A (en) | 2012-06-28 | 2012-06-28 | Contact image sensor |
| PCT/CN2012/085535 WO2014000374A1 (en) | 2012-06-28 | 2012-11-29 | Contact image sensor and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102179074A CN102739906A (en) | 2012-06-28 | 2012-06-28 | Contact image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102739906A true CN102739906A (en) | 2012-10-17 |
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ID=46994647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102179074A Pending CN102739906A (en) | 2012-06-28 | 2012-06-28 | Contact image sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102739906A (en) |
| WO (1) | WO2014000374A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103139430A (en) * | 2013-03-20 | 2013-06-05 | 深圳市怡化电脑有限公司 | Image-scanning 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 |
| WO2014000374A1 (en) * | 2012-06-28 | 2014-01-03 | 威海华菱光电股份有限公司 | Contact image sensor and control method thereof |
| CN103929562A (en) * | 2014-04-29 | 2014-07-16 | 威海华菱光电股份有限公司 | Image sensor and image scanning and thickness detecting method |
| 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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| CN201360289Y (en) * | 2009-02-10 | 2009-12-09 | 威海华菱光电有限公司 | Contact type image sensor |
| CN102739906A (en) * | 2012-06-28 | 2012-10-17 | 威海华菱光电股份有限公司 | Contact image sensor |
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2012
- 2012-06-28 CN CN2012102179074A patent/CN102739906A/en active Pending
- 2012-11-29 WO PCT/CN2012/085535 patent/WO2014000374A1/en active Application Filing
Patent Citations (3)
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| CN102466478A (en) * | 2010-11-16 | 2012-05-23 | 深圳泰山在线科技有限公司 | System and method for measuring distance of moving object |
| CN102006391A (en) * | 2010-12-09 | 2011-04-06 | 威海华菱光电有限公司 | Contact type image sensor |
| CN102014234A (en) * | 2010-12-22 | 2011-04-13 | 威海华菱光电有限公司 | Contact image sensor |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014000374A1 (en) * | 2012-06-28 | 2014-01-03 | 威海华菱光电股份有限公司 | Contact image sensor and control method thereof |
| 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 |
| 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 |
| 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 |
| CN103139430A (en) * | 2013-03-20 | 2013-06-05 | 深圳市怡化电脑有限公司 | Image-scanning 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 |
| 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 |
| CN103929562A (en) * | 2014-04-29 | 2014-07-16 | 威海华菱光电股份有限公司 | Image sensor and image scanning and thickness detecting method |
| CN103929562B (en) * | 2014-04-29 | 2017-08-01 | 威海华菱光电股份有限公司 | Imaging sensor, image scanning and thickness detecting method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014000374A1 (en) | 2014-01-03 |
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Application publication date: 20121017 |