CN201341178Y - Contact type image sensor - Google Patents
Contact type image sensor Download PDFInfo
- Publication number
- CN201341178Y CN201341178Y CNU2009200185036U CN200920018503U CN201341178Y CN 201341178 Y CN201341178 Y CN 201341178Y CN U2009200185036 U CNU2009200185036 U CN U2009200185036U CN 200920018503 U CN200920018503 U CN 200920018503U CN 201341178 Y CN201341178 Y CN 201341178Y
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- image sensor
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Abstract
The utility model relates to an image read device, in particularly a contact type image sensor which has strong high identification ability and high read speed. The contact type image sensor includes a glass plate for carrying original manuscript, a light source for lighting and irradiating to the original manuscript, a sensor substrate, the sensor substrate is equipped with a light-sensitive integrate circuit, a lens is set between the glass plate and the sensor substrate for containing and fixing the glass plate, the light source, the lens and a frame of the sensor substrate. The image sensor has characteristics that the sensor substrate is equipped with at least two rows light-sensitive integrate circuit, a light sensitive viewfinder of the light-sensitive integrate circuit is coated with a filtering glue film. The contact type image sensor places the light-sensitive integrate circuit with various distinguishing rate into the image sensor, uses the light-sensitive integrate circuit with various distinguishing rate for reading image according with various definition requirement of the waited scanned image which can satisfy reading requirement of high definition image, increase reading speed greatly, and optionally read a special image for reflecting special wavelength, accordingly, realize identification to the bank paper.
Description
Technical field:
The utility model relates to a kind of image read-out, is a kind of contact-type image sensor that pseudo-ability is strong, reading speed is fast of knowing specifically.
Background technology:
Fig. 1 is the oblique view of existing contact-type image sensor, and Fig. 2 is its sectional drawing, and Fig. 3 is the oblique view that carries the sensor base plate of photosensitive integrated circuit.1 is the glass plate that carries original copy among the figure, the 2nd, illuminating source, the 6th, lens, the illuminating source operated by rotary motion is in a side of lens, illuminating source also can be separately positioned on the both sides of lens, a side wherein adopts ultraviolet light usually, so that it can carry out false distinguishing, the 5th, the photosensitive integrated circuit of receiver lens 6 light that converges, the 4th, the sensor base plate of the photosensitive integrated circuit 5 that lift-launch is arranged in a row, the 3rd, hold the framework of light source 2, lens 6, sensor base plate 4, glass plate 1, the 7th, the light sensation form on the photosensitive integrated circuit 5.
In above-mentioned contact-type image sensor, the light that light source 2 sends, see through glass plate 1, shine on the original copy (not drawing among the figure) of outside, literal black region light on the original copy is absorbed, and almost 100% be reflected at other the light of white undercolor region of original copy, these reverberation pass glass plate 1 again, are collected and shine on the sensitization form 7 on the photosensitive integrated circuit 5 on the sensor base plate 4 by lens 6.Photosensitive integrated circuit 5 is to carry out the photosignal conversion by the light that many sensitization forms 7 and energy will shine on each sensitization form, and the drive circuit of signal output is formed.The light signal that receives converts the signal of telecommunication to after overdrive circuit output is outwards exported 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, and its deficiency is selectively to carry out reading of specific coloured light, does not have the function of differentiating image true-false.。
Existing image switching scanning is that whole pixels all scan, because contact-type image sensor only is provided with the photosensitive integrated circuit of a row, even the scanning density of the actual needs scanning density more intrinsic than photosensitive integrated circuit is low, also need both full-pixel scanning, this has just reduced sweep speed.
Summary of the invention:
Technical problem to be solved in the utility model is: the one, overcome in the existing contact-type image sensor course of work, because photosensitive integrated circuit linearly is arranged in a row, can only read the scanning that normal image is carried out single-mode, can not selectively carry out reading of specific coloured light, not have the function of differentiating image true-false; The 2nd, because photosensitive integrated circuit is arranged in a row, read so can only carry out the image of single resolution, can not realize that different phase carries out the reading requirement of different resolutions, reading speed can not increase substantially.The utility model provides a kind of contact-type image sensor that can differentiate that image true-false, reading speed increase substantially.
The utility model can reach by following measure:
A kind of contact-type image sensor, comprise the glass plate, light source, the sensor base plate that carry original copy, sensor base plate is provided with photosensitive integrated circuit, be provided with lens between glass plate and the sensor base plate, and can hold the framework of fixing above-mentioned glass plate, light source, lens and sensor base plate, it is characterized in that being provided with at least on the sensor base plate the photosensitive integrated circuit of two rows.
The sensitization form surface coated of the photosensitive integrated circuit in the utility model has the optical filtering glued membrane, the optical filtering glued membrane can be a solid color, also multiple color can be set, when multiple color is set, wherein the sensitization form surface segment of photosensitive integrated circuit of the row is coated with the optical filtering glued membrane of different colours, the sensitization form surface of photosensitive integrated circuit that also can every row is coated with the optical filtering glued membrane (each row is a solid color) of different colours respectively, can also be arranged to the optical filtering glued membrane of the sensitization form surface segment coating different colours of the photosensitive integrated circuit of a row, the sensitization form of other row's photosensitive integrated circuit is provided with the optical filtering glued membrane of solid color respectively.
The photosensitive pixel density difference of the photosensitive integrated circuit of the row of two in the utility model, the sensitization form of the photosensitive integrated circuit of two rows is positioned on the different horizontal planes, to improve sweep speed and scan resolution.
As mentioned above, the utility model is owing to be provided with the photosensitive integrated circuit of two row or multi-row on sensor base, and a row or multi-row therein photosensitive integrated circuit sensitization form surface has been coated with the optical filtering glued membrane of appointment by the appointed area, so have following effect:
One, because on sensor base, is provided with the photosensitive integrated circuit of two row or multi-row, can put the photosensitive integrated circuit of different resolution in same image sensors, require to adopt different resolution to carry out reading images according to the difference that is scanned image definition, so both satisfied the reading requirement of high-definition image, significantly improved reading speed again.
Two, because in photosensitive integrated circuit light sensation form surface coated the optical filtering glued membrane of appointment, institute's image taking sensor both can scan and read normal image, can read the particular image of reflection specific wavelength again selectively, this image sensor application is on financial end-equipment, on different material, can reflect the characteristic of different color light according to ultraviolet light irradiation, utilize ultraviolet that the anti-counterfeiting image on the bank note is shone, the light of reflection is differentiated through this patent, thus the true and false of realization identification note.
Description of drawings:
Fig. 1 is the oblique view of conventional images transducer.
Fig. 2 is the sectional drawing of Fig. 1.
Fig. 3 is the oblique view of the sensor base plate in the imageing sensor shown in Figure 1.
Fig. 4 is the oblique view of the utility model imageing sensor.
Fig. 5 is the sectional drawing of Fig. 4.
Fig. 6 is the oblique view of the sensor base plate in the imageing sensor shown in Figure 4.
Fig. 7 is the vertical view of Fig. 6.
Mark among the figure: glass plate 1, light source 2, framework 3, sensor base plate 4, photosensitive integrated circuit 5, lens 6, sensitization form 7.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As shown in drawings, a kind of contact-type image sensor, comprise the glass plate 1 that carries original copy, can send light and make illumination be mapped to light source 2 on the original copy, sensor base plate 4, sensor base plate is provided with photosensitive integrated circuit 5, be provided with lens 6 between glass plate 1 and the sensor base plate 4, and can hold fixing above-mentioned glass plate 1, light source 2, the framework 3 of lens 6 and sensor base plate 4, illuminating source 2 operated by rotary motion are in a side of lens 6, illuminating source 2 also can be separately positioned on the both sides of lens 6, a side wherein adopts ultraviolet light usually, so that it can carry out false distinguishing, said structure and interconnected relationship are same as the prior art, this does not give unnecessary details, of the present utility model being characterised in that is provided with the photosensitive integrated circuit 5 of two rows at least on the sensor base plate 4, sensitization form 7 surface coated on the photosensitive integrated circuit 5 have the optical filtering glued membrane, the optical filtering glued membrane can be a solid color, also multiple color can be set, when multiple color is set, wherein the sensitization form surface segment of photosensitive integrated circuit of the row is coated with the optical filtering glued membrane of different colours, the sensitization form surface of photosensitive integrated circuit that also can every row is coated with the optical filtering glued membrane (each row is a solid color) of different colours respectively, can also be arranged to the optical filtering glued membrane of the sensitization form surface segment coating different colours of the photosensitive integrated circuit of a row, the sensitization form of other row's photosensitive integrated circuit is provided with the optical filtering glued membrane of solid color respectively.The photosensitive pixel density difference of the photosensitive integrated circuit of the row of two in the utility model, the sensitization form of same row's photosensitive integrated circuit generally is positioned on the same horizontal plane, also can not be positioned at same horizontal plane, the sensitization form of the photosensitive integrated circuit of every row generally is positioned on the different horizontal planes, to improve sweep speed and scan resolution.
In above-mentioned contact-type image sensor, the light that light source 2 sends, see through glass plate 1, shine on the outer original copy (not drawing among the figure) of glass plate, the light of the literal black region on the original copy is absorbed, and in other white undercolor region of original copy, light almost 100% is reflected, these reverberation pass glass plate 1 again, are collected by lens 6, shine on the sensitization form of the photosensitive integrated circuit 5 on the sensor base plate 4.Photosensitive integrated circuit 5 is to carry out opto-electronic conversion by the light that many sensitization forms and energy will shine on each sensitization form, and the drive circuit of signal output is formed.The light that receives converts the signal of telecommunication to after overdrive circuit output is outwards exported 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.
Be provided with the photosensitive integrated circuit of two rows on the sensor base, can put the photosensitive integrated circuit of different resolution in same image sensors, can selectively adopt different resolution to carry out reading images according to the different requirements that are scanned image definition, adopt high-resolution to read to the demanding image of definition, adopt low resolution to read to the less demanding image of definition, so both satisfied the reading requirement of high-definition image, significantly improved reading speed again.
In the photosensitive integrated circuit of two rows of present embodiment, the sensitization form surface coated of the photosensitive integrated circuit of a row wherein filter is specified the optical filtering glued membrane of coloured light, institute's image taking sensor both can scan and read normal image, can read the particular image of reflection specific wavelength again selectively.This imageing sensor is used on the financial end-equipment, on different material, can reflect the characteristic of different color light according to ultraviolet light irradiation, utilize ultraviolet that the anti-counterfeiting image on the bank note is shone, the light of reflection is differentiated through this patent, thereby is realized discerning the false from the genuine bank note.
Claims (4)
1, a kind of contact-type image sensor, comprise the glass plate, light source, the sensor base plate that carry original copy, sensor base plate is provided with photosensitive integrated circuit, be provided with lens between glass plate and the sensor base plate, the framework that can hold fixing above-mentioned glass plate, light source, lens and sensor base plate is characterized in that being provided with at least on the sensor base plate the photosensitive integrated circuit of two rows.
2, a kind of contact-type image sensor according to claim 1 is characterized in that the sensitization form surface coated of photosensitive integrated circuit has the optical filtering glued membrane.
3, a kind of contact-type image sensor according to claim 1 is characterized in that two arrange the photosensitive pixel density difference of photosensitive integrated circuit.
4, a kind of contact-type image sensor according to claim 1 is characterized in that the sensitization form of the photosensitive integrated circuit of two rows is positioned on the different horizontal planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200185036U CN201341178Y (en) | 2009-01-21 | 2009-01-21 | Contact type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200185036U CN201341178Y (en) | 2009-01-21 | 2009-01-21 | Contact type image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201341178Y true CN201341178Y (en) | 2009-11-04 |
Family
ID=41236720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200185036U Expired - Lifetime CN201341178Y (en) | 2009-01-21 | 2009-01-21 | Contact type image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201341178Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783854B (en) * | 2009-01-21 | 2013-01-16 | 威海华菱光电有限公司 | Image reading device |
-
2009
- 2009-01-21 CN CNU2009200185036U patent/CN201341178Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783854B (en) * | 2009-01-21 | 2013-01-16 | 威海华菱光电有限公司 | Image reading device |
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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: 264200 Torch Road, hi tech Industrial Development Zone, Shandong, Weihai 159 Patentee before: Weihai Hualing Optoelectronic Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |