CN108040187A - Contact-type image sensor - Google Patents
Contact-type image sensor Download PDFInfo
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- CN108040187A CN108040187A CN201711015055.XA CN201711015055A CN108040187A CN 108040187 A CN108040187 A CN 108040187A CN 201711015055 A CN201711015055 A CN 201711015055A CN 108040187 A CN108040187 A CN 108040187A
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- 238000000576 coating method Methods 0.000 claims abstract description 82
- 238000006243 chemical reaction Methods 0.000 claims abstract description 75
- 239000004904 UV filter Substances 0.000 claims abstract description 70
- 238000002834 transmittance Methods 0.000 claims description 68
- 230000003287 optical effect Effects 0.000 claims description 39
- 230000005693 optoelectronics Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 7
- 238000011900 installation process Methods 0.000 abstract description 4
- 230000005284 excitation Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 10
- 238000001914 filtration Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 6
- 238000000411 transmission spectrum Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02895—Additional elements in the illumination means or cooperating with the illumination means, e.g. filters
Abstract
This application provides a kind of contact-type image sensor.The contact-type image sensor includes：Wiring board；Photoelectric conversion chip, is set on the surface of assist side, and and circuit board electrical connection；UV filter coatings, are arranged on the surface of remote wiring board of photoelectric conversion chip.In the contact-type image sensor, UV light filter coatings are arranged on the surface of photoelectric conversion chip, it is higher to avoid installation UV filter coating difficulty in the prior art, UV filter coatings of the prior art be it also avoid installation process is vulnerable to corrosion the problem of, it ensure that UV filter coatings have well stable performance, so as to ensure that contact-type image sensor has good performance.
Description
Technical field
This application involves sensor field, in particular to a kind of contact-type image sensor.
Background technology
In the prior art, the contact-type image sensor structure with UV filter coatings is as shown in Figure 1, it includes framework 1',
It is equipped with optical lens 2' in framework 1', the side of optical lens 2' is equipped with light source 3', and light source 3' includes visible ray RGB and ultraviolet
The top of light UV, optical lens 2' are equipped with transparent panel 4', and the lower section of optical lens 2' is equipped with wiring board 5', is located on wiring board 5'
Lens 2''s is arranged right below a row photoelectric conversion chip 6', in optical lens 2' and framework 1' be used for accommodate opto-electronic conversion
UV filter coatings 7' is equipped between the accommodating chamber of chip 6'.Photoelectric conversion chip unit top surface is photosensitive equipped with photosensitive window 60'
Window 60' is as shown in Figure 2.Photoelectric conversion chip is internally provided with circuit, and the function of photoelectric conversion chip is to convert optical signals into
Electric signal.
When contact-type image sensor works, as the visible ray RGB that light source 3' is sent, original is irradiated to through transparent panel 4'
On original text, image and/or word on original copy etc. produce RGB reflected lights, these RGB reflected lights are then passed through transparent panel 4', into light
Lens 2' is learned, the RGB reflected lights come out from the optical lens 2' other ends are irradiated to photoelectric conversion chip 6' by UV filter coatings 7'
Photosensitive window on, UV filter coatings 7' because its transmittance spectrum characteristic to RGB reflected lights without filtering, photoelectric conversion chip 6'
The visible light signal received is converted into electric signal.
When the UV light time that light source 3' is sent, it is irradiated to through transparent panel 4' on original copy, image and/or word on original copy etc.
Produce UV reflected lights and RGB excitation lights, these UV reflected lights and RGB excitation lights and be then passed through transparent panel 4', into optical lens 2',
The UV reflected lights and RGB excitation lights come out from the optical lens 2' other ends is irradiated to photoelectric conversion chip 6' by UV filter coatings 7'
Photosensitive window on, UV filter coatings 7' because its transmittance spectrum characteristic filters out UV reflected lights, and to RGB excitation lights without
The RGB excitation lights received are converted into electric signal by filtering, photoelectric conversion chip 6'.Original copy constantly moves, described thereon
Image, text information will be read continuously and take off, and complete the image information scanning process of original copy.
Original contact-type image sensor with UV filter coatings, because contact-type image sensor is small, optics
Space between lens and photoelectric conversion chip is small, and the installation of UV filter coatings is fixed inconvenient, and mounting process difficulty is high, and filter coating is pacified
Dress process is vulnerable to corrosion and throughout the year using the phenomenon of deterioration occurs, can increase contact-type image sensor manufacture cost and
The stability in use and quality of contact-type image sensor are influenced, and then influences the quality of scanning of imaging sensor, is reduced various
The accuracy for differentiating and judging.
Therefore, there is an urgent need for developing a kind of new-type contact-type image sensor with UV filter coatings, and UV filter coatings are easy to
Installation, reduces cost, and UV optical filterings film properties are stablized.
The content of the invention
The main purpose of the application is to provide a kind of contact-type image sensor, to solve of the prior art to carry UV
The problem of contact-type image sensor installation of filter coating is inconvenient.
To achieve these goals, the application provides a kind of contact-type image sensor, contact type image sensing
Device includes：Wiring board；Photoelectric conversion chip, is arranged on the surface of above-mentioned wiring board, and with above-mentioned circuit board electrical connection；UV is filtered
Light film, is arranged on the surface of remote above-mentioned wiring board of above-mentioned photoelectric conversion chip.
Further, above-mentioned contact-type image sensor further includes：Framework, including the first accommodating chamber, above-mentioned wiring board, on
State photoelectric conversion chip and above-mentioned UV filter coatings are arranged in above-mentioned first accommodating chamber.
Further, side of the above-mentioned photoelectric conversion chip away from above-mentioned wiring board includes multiple photosensitive windows, above-mentioned UV
The above-mentioned photosensitive window of filter coating at least covering part.
Further, the above-mentioned whole above-mentioned photosensitive windows of UV filter coatings covering.
Further, multiple above-mentioned photosensitive windows form at least one photosensitive window row, the row side of above-mentioned photosensitive window row
To vertical with the moving direction of determinand.
Further, above-mentioned contact-type image sensor further includes：Multiple transmittance sections, multiple above-mentioned transmittance sections are arranged on
State between photosensitive window and above-mentioned UV filter coatings, multiple above-mentioned transmittance sections include feux rouges transmittance section, green light transmittance section and blue light
Transmittance section, above-mentioned transmittance section correspond with above-mentioned photosensitive window and set.
Further, above-mentioned photoelectric conversion chip includes an above-mentioned photosensitive window row, and multiple above-mentioned transmittance sections are along upper
Line direction arrangement is stated, forms multiple light transmitting cells, each above-mentioned light transmitting cells include above-mentioned feux rouges transmittance section, above-mentioned green light transmittance section
And above-mentioned blue light transmittance section.
Further, above-mentioned photoelectric conversion chip includes at least three above-mentioned photosensitive window rows, and at least three is above-mentioned photosensitive
Window row is arranged along above-mentioned determinand moving direction, and multiple above-mentioned transmittance sections form at least three printing opacity rows, multiple above-mentioned printing opacities
Row includes feux rouges printing opacity row, green light printing opacity row and blue light printing opacity row, wherein, above-mentioned feux rouges printing opacity row is included along above-mentioned line direction
Multiple above-mentioned feux rouges transmittance sections of arrangement, above-mentioned green light printing opacity row include the multiple above-mentioned green light printing opacities arranged along above-mentioned line direction
Portion, above-mentioned blue light printing opacity row include the multiple above-mentioned blue light transmittance sections arranged along above-mentioned line direction.
Further, multiple above-mentioned printing opacity rows include multiple printing opacity row units, and multiple printing opacity row units are along above-mentioned determinand
Moving direction arrangement, each above-mentioned printing opacity row unit include an above-mentioned feux rouges printing opacity row, an above-mentioned green light printing opacity row and
One above-mentioned blue light printing opacity row.
Further, above-mentioned framework further includes the second accommodating chamber and the 3rd accommodating chamber, above-mentioned first accommodating chamber, above-mentioned
Two accommodating chambers and the mutually isolated setting of above-mentioned 3rd accommodating chamber, above-mentioned second accommodating chamber and above-mentioned 3rd accommodating chamber are respectively positioned on
The remote above-mentioned photoelectric conversion chip side of above-mentioned UV filter coatings, above-mentioned contact-type image sensor further include：Optical lens, if
Put in above-mentioned second accommodating chamber and set with above-mentioned photoelectric conversion chip face；Light source, is arranged in above-mentioned 3rd accommodating chamber；Thoroughly
Isotropic disk, is arranged on the outer surface of remote above-mentioned wiring board side of above-mentioned framework.
Using the technical solution of the application, in contact-type image sensor, UV light filter coatings are arranged on opto-electronic conversion
On the surface of chip, avoid that to install UV filter coating difficulty in the prior art higher, it also avoid UV of the prior art and filter
Film ensure that UV filter coatings have well stable performance, so as to ensure that contact installation process is vulnerable to corrosion the problem of
Formula imaging sensor has good performance.
Brief description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are used to explain the application, do not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 shows a kind of structure diagram of contact-type image sensor of the prior art；
Fig. 2 shows the structure diagram in the photoelectric conversion chip in Fig. 1；
Fig. 3 shows the structure diagram of the contact-type image sensor provided according to a kind of embodiment of the application；
Fig. 4 shows the partial structural diagram of the contact-type image sensor of embodiments herein 1；
Fig. 5 shows the spectrogram after the UV filter coatings optical filtering in embodiments herein 1；
Fig. 6 shows the partial structural diagram of the contact-type image sensor of embodiments herein 2；
Fig. 7 shows the spectrogram after the UV filter coatings optical filtering in embodiments herein 2；And
Fig. 8 shows the partial structural diagram of the contact-type image sensor of embodiments herein 3.
Wherein, above-mentioned attached drawing is marked including the following drawings：
1', framework；2', optical lens；3', light source；4', transparent panel；5', wiring board；6', photoelectric conversion chip；7'、UV
Filter coating；60', photosensitive window；1st, framework；2nd, optical lens；3rd, light source；4th, transparent panel；5th, wiring board；6th, opto-electronic conversion core
Piece；7th, transmittance section；8th, UV filter coatings；60th, photosensitive window；71st, feux rouges transmittance section；72nd, green light transmittance section；73rd, blue light transmittance section.
Embodiment
It is noted that described further below is all illustrative, it is intended to provides further instruction to the application.It is unless another
Indicate, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be understood that when element (such as layer, film, region or substrate) be described as another element " on " when, this yuan
Part can be directly on another element, or intermediary element also may be present.Moreover, in specification and following claims
In, when description has element " connected " to another element, which " can be directly connected to " to another element, or pass through the 3rd
Element " electrical connection " is to another element.
As background technology is introduced, the installation difficulty of UV filter coatings of the prior art is high, and in installation process
It is vulnerable to corrosion and throughout the year using the phenomenon that deterioration occurs, in order to solve technical problem as above, present applicant proposes one kind
Contact-type image sensor.
In a kind of typical embodiment of the application, there is provided a kind of contact-type image sensor, as shown in figure 3, should
Contact-type image sensor includes wiring board 5, photoelectric conversion chip 6 and UV filter coatings 8.Wherein, photoelectric conversion chip 6 is set
It is electrically connected on the surface of above-mentioned wiring board 5, and with above-mentioned wiring board 5, for converting optical signal into electric signal；UV filter coatings
8 are arranged on the surface of remote above-mentioned wiring board 5 of above-mentioned photoelectric conversion chip 6, for by photoelectric conversion chip to be entered
UV light in light filters out, and avoids UV shadows from ringing photoelectric conversion chip and rgb light is accurately identified, be further ensured that detection information
Accuracy.
It should be noted that the light transmission features of above-mentioned UV filter coatings will meet the visible rays such as RGB and infrared light printing opacity
Need, i.e., these light are not filtered out, the transmitance of these light is higher, to reach more than 80%.
Above-mentioned UV filter coatings can select any available filter coating of the prior art, such as ceria, titanium dioxide
Titanium or zinc sulphide, those skilled in the art can select according to actual conditions, also, its specific production method can be according to reality
The selection such as material that border is selected, can select chemical vapour deposition technique, sputtering method and physical vaporous deposition etc..
In above-mentioned contact-type image sensor, UV light filter coatings are arranged on the surface of photoelectric conversion chip, i.e.,
Setting is contacted with photoelectric conversion chip, when the imaging sensor makes, it is only necessary to photoelectric conversion chip and UV will be provided with
The wiring board of filter coating is arranged in the structure of fixed position or fixation, without additionally pacifying to UV filter coatings
Dress, it is higher so as to avoid UV filter coating difficulty is installed in the prior art, it also avoid UV filter coatings of the prior art and pacifying
The problem of dress process is vulnerable to corrosion, ensure that UV filter coatings have well stable performance, so as to ensure that contact type image
Sensor has good performance.
In a kind of embodiment of the application, as shown in figure 3, above-mentioned contact-type image sensor further includes framework 1, framework 1
Including the first accommodating chamber, above-mentioned wiring board 5, above-mentioned photoelectric conversion chip 6 and above-mentioned UV filter coatings 8, which are arranged on above-mentioned first, to be held
Receive in chamber, i.e., during the contact-type image sensor makes, as long as UV filter coatings are arranged on photoelectric conversion chip
On surface, subsequently the wiring board for being provided with photoelectric conversion chip and UV filter coatings is set directly in the first accommodating chamber
, without carrying out extra installation procedure to UV filter coatings, further avoid installation UV filter coating difficulty in the prior art
It is higher, UV filter coatings of the prior art are it also avoid installation process is vulnerable to corrosion the problem of, ensure that UV filter coatings have
There is well stable performance, so as to ensure that contact-type image sensor has good performance.Also, the framework can dock
Miscellaneous part in touch imaging sensor, such as wiring board, photoelectric conversion chip and UV filter coatings are protected, moreover it is possible to its
To supporting role so that these components are not easy to be damaged, and above-mentioned framework will be separated in contact-type image sensor
Structure forms an entirety, facilitates the use of the contact-type image sensor.
In another embodiment of the application, side of the above-mentioned photoelectric conversion chip 6 away from above-mentioned wiring board 5 includes multiple
Photosensitive window 60, the above-mentioned photosensitive window 60 of above-mentioned UV filter coatings 8 at least covering part, and then by the light of photosensitive window to be entered
At least part UV light filter out.
In order to further filter out the UV light in the light of photosensitive window to be entered, UV light is further avoided to make the biologies such as people
Into influence, in a kind of embodiment of the application, above-mentioned UV filter coatings 8 cover all above-mentioned photosensitive windows 60, i.e. UV filter coatings
Cover all photosensitive windows.
In order to detect the image information on determinand exactly, in a kind of embodiment of the application, such as Fig. 4, Fig. 6 or Fig. 8
Shown, multiple above-mentioned photosensitive windows 60 form at least one photosensitive window row, the line direction and determinand of above-mentioned photosensitive window row
Moving direction it is vertical.
In the another embodiment of the application, as shown in Fig. 4, Fig. 6 or Fig. 8, above-mentioned contact-type image sensor further includes
Multiple transmittance sections 7, multiple above-mentioned transmittance sections 7 are arranged between above-mentioned photosensitive window 60 and above-mentioned UV filter coatings 8, multiple above-mentioned
Light portion 7 includes feux rouges transmittance section 71, green light transmittance section 72 and blue light transmittance section 73, above-mentioned transmittance section 7 and above-mentioned photosensitive window
60 correspond setting, and one-to-one corresponding setting here not only has quantitative one-to-one corresponding, further include a pair on position
Should, projection of the photosensitive window on transmittance section is embodied as positioned at the inside of transmittance section or is overlapped with transmittance section.Above-mentioned indigo plant
Light transmittance section may only pass through blue light, and feux rouges transmittance section may only pass through feux rouges, green light transmittance section may only printing opacity green light, into
And outside UV filter coatings filter out the UV light in light, each transmittance section is again handled the light being emitted from UV filter coatings, is obtained
To feux rouges, blue light and green light, photoelectric conversion chip further includes circuit part, and circuit part is to respectively enteing different photosensitive windows
Feux rouges, blue light and green light be converted into electric signal, synthesized by photoelectric conversion chip either external signal processing circuit,
So as to obtain coloured image.
Multiple transmittance sections of the application can be formed at multiple films on same film or different, ability
Multiple transmittance sections can be formed on same film or different films by field technique personnel according to actual conditions.
In another embodiment of the application, as shown in fig. 6, above-mentioned photoelectric conversion chip 6 includes an above-mentioned photosensitive window
Mouth row, multiple above-mentioned transmittance sections 7 are arranged along above-mentioned line direction, form multiple light transmitting cells, and each above-mentioned light transmitting cells include upper
State feux rouges transmittance section 71, above-mentioned green light transmittance section 72 and above-mentioned blue light transmittance section 73, such structure, although only one sense
Light window row, but due to the presence of light transmitting cells so that the light of photosensitive window to be entered is different colors, and then passes through light
The conversion of the circuit part of electric conversion chip, obtains coloured image, and then being capable of the vivider figure detected exactly on determinand
Picture.
Feux rouges transmittance section, blue light transmittance section and putting in order for green light transmittance section in above-mentioned light transmitting cells are not limited to
Shown in Fig. 6, those skilled in the art can be arranged to different according to actual conditions and put in order, also, each light transmitting cells
In feux rouges transmittance section, blue light transmittance section and green light transmittance section setting order can be different, specifically can be according to actual feelings
Condition is set.
In another embodiment of the application, as shown in figure 8, above-mentioned photoelectric conversion chip 6 includes at least three above-mentioned senses
Light window row, at least three above-mentioned photosensitive window rows are arranged along above-mentioned determinand moving direction, multiple above-mentioned transmittance sections 7 formed to
Few three printing opacity rows, since transmittance section and photosensitive window correspond and set, so the quantity of printing opacity row here and photosensitive window
The quantity of mouth row is identical, and multiple above-mentioned printing opacity rows include feux rouges printing opacity row, green light printing opacity row and blue light printing opacity row, its
In, above-mentioned feux rouges printing opacity row includes the multiple above-mentioned feux rouges transmittance sections 71 arranged along above-mentioned line direction, above-mentioned green light printing opacity row bag
The multiple above-mentioned green light transmittance sections 72 arranged along above-mentioned line direction are included, above-mentioned blue light printing opacity row is included along the arrangement of above-mentioned line direction
Multiple above-mentioned blue light transmittance sections 73.Feux rouges printing opacity row, blue light printing opacity row and putting in order for green light printing opacity row are not limited to Fig. 8
It is shown, it can also be other arrangement modes.
In order to preferably form the image of colour, in a kind of embodiment of the application, as shown in figure 8, multiple above-mentioned printing opacities
Row includes multiple printing opacity row units, and multiple printing opacity row units are arranged along the moving direction of above-mentioned determinand, each above-mentioned printing opacity row list
Member includes an above-mentioned feux rouges printing opacity row, a green light printing opacity row and a blue light printing opacity row.Feux rouges in printing opacity row unit
Printing opacity row, green light printing opacity row and putting in order for blue light printing opacity row are not limited to shown in Fig. 8, can also be that other arrangements are suitable
Sequence.Also, the feux rouges printing opacity row, blue light printing opacity row and putting in order for green light printing opacity row in different printing opacity row units also may be used
To be different, those skilled in the art can set suitable order according to actual conditions.
In another embodiment of the application, as shown in figure 3, above-mentioned framework 1 further includes the second accommodating chamber and the 3rd appearance
Receive chamber, above-mentioned first accommodating chamber, above-mentioned second accommodating chamber and the mutually isolated setting of above-mentioned 3rd accommodating chamber, above-mentioned second accommodates
Chamber and above-mentioned 3rd accommodating chamber are respectively positioned on remote above-mentioned 6 side of photoelectric conversion chip of above-mentioned UV filter coatings 8, above-mentioned contact
Imaging sensor further includes optical lens 2, transparent panel 4 and light source 3.Wherein, optical lens 2 is set in above-mentioned second accommodating chamber
And set with above-mentioned 6 face of photoelectric conversion chip；Light source 3 is arranged in above-mentioned 3rd accommodating chamber, can send UV light and rgb light；
Transparent panel 4 is arranged on the outer surface of remote above-mentioned 5 side of wiring board of above-mentioned framework 1.
Above-mentioned is in embodiment, when contact-type image sensor works, as the visible ray RGB that light source 3 is sent, is passed through
Transparent panel 4 is irradiated on determinand, and image, word on determinand etc. produce reflected light RGB, these reflected lights RGB is then passed through
Transparent panel 4, into optical lens 2, the reflected light RGB come out from 2 other end of optical lens is irradiated to after UV filter coatings 8
On the photosensitive window of photoelectric conversion chip 6, UV filter coatings 8 are because of its transmittance spectrum characteristic to reflected light RGB without filtering, light
The visible light signal RGB that electric conversion chip 6 receives is converted into electric signal；When the UV light time that light source 3 is sent, through transparent panel
4 are irradiated on determinand, and image, word on determinand etc. produce UV reflected lights and RGB excitation lights, these UV reflected lights and
RGB excitation lights are then passed through transparent panel 4, into optical lens 2, the UV reflected lights come out from 2 other end of optical lens and RGB excitations
Light is irradiated on the photosensitive window of photoelectric conversion chip 6 after UV filter coatings 8, and UV filter coatings are because of its transmittance spectrum characteristic
UV reflected lights are filtered out, and to RGB excitation lights without filtering, the RGB excitation lights conversion that photoelectric conversion chip 6 receives
Into electric signal.Determinand constantly moves, and described rgb light and the corresponding image of UV light, text information will be connected thereon
Resume studies and take off, complete the image information scanning process of determinand.
In order to enable those skilled in the art can clearly understand the technical solution of the application, below with reference to tool
The embodiment of body illustrates the technical solution of the application.
Embodiment 1
As shown in figure 3, the contact-type image sensor includes the framework 1 to play a supportive role, optical lens is equipped with framework 1
2, the side of optical lens 2 is equipped with light source 3, and light source 3 can send visible ray RGB and ultraviolet light UV, the top of optical lens 2
Equipped with transparent panel 4, the lower section of optical lens 2 is equipped with wiring board 5, and optical lens 2 is located on wiring board 5 is arranged right below a row
Photoelectric conversion chip 6.6 top surface of photoelectric conversion chip is equipped with multiple photosensitive windows 60, and photosensitive window forms the photosensitive window of Fig. 4
Mouth row, the line direction of photosensitive window row is identical with the column direction of a row photoelectric conversion chip, and photoelectric conversion chip 6 is internally provided with electricity
Road, the function of photoelectric conversion chip 6 are to convert optical signals into electric signal, and one is coated with the photosensitive window of photoelectric conversion chip 6
Layer UV filter coatings 8.
When contact-type image sensor works, as the visible ray RGB that light source 3 is sent, original copy is irradiated to through transparent panel 4
On, image, word on original copy etc. produce reflected light RGB, these reflected lights RGB is then passed through transparent panel 4, into optical lens 2,
The reflected light RGB come out from 2 other end of optical lens is irradiated to the photosensitive window of photoelectric conversion chip 6 after UV filter coatings 8
On, UV filter coatings 8 because of its transmittance spectrum characteristic to reflected light RGB without filtering, what photoelectric conversion chip 6 received can
See that optical signal RGB is converted into electric signal.
When the UV light time that light source 3 is sent, it is irradiated to through transparent panel 4 on original copy, image, word on original copy etc. produce UV
Reflected light and RGB excitation lights, these UV reflected lights and RGB excitation lights are then passed through transparent panel 4, into optical lens 2, from optical lens
The UV reflected lights and RGB excitation lights that 2 other end of mirror comes out are irradiated to the photosensitive window of photoelectric conversion chip 6 after UV filter coatings 8
On mouth, UV filter coatings because its transmittance spectrum characteristic filters out UV reflected lights, and to RGB excitation lights without filtering, photoelectricity
The RGB excitation lights that conversion chip 6 receives are converted into electric signal.
Original copy constantly moves, and the image of described RGBUV light, text information will be read continuously and take off thereon, complete
Into the image information scanning process of original copy.Also, in the present embodiment, because being only coated with UV on the photosensitive window of photoelectric conversion chip 6
Filter coating, photosensitive window cannot distinguish between tri- kinds of colors of RGB, but be converted into electric signal using RGB excitation lights as a kind of optical signal,
Therefore, Transmission curves as shown in Figure 5 understand that the sensor can be only generated the black white image of UV excitation lights.
Embodiment 2
It is with the difference of embodiment 1, a transmittance section is correspondingly arranged on each photosensitive window in photosensitive window row,
Transmittance section is arranged according to the arrangement mode of Fig. 6, and UV filter coatings are arranged on a side surface of remote photosensitive outlet for each transmittance section.
The emergent light of optical lens is first passed through after UV filter coatings filter out UV light, is entered back into transmittance section, is obtained red, green and three kinds blue
The light of color, enters back into photosensitive window, these three optical signals are switched to electric signal respectively by the circuit of photoelectric conversion chip, and
Synthesized, generate the coloured image of the UV excitation lights shown in Fig. 7.
Embodiment 3
As shown in figure 8, photoelectric conversion chip 6 includes three photosensitive window rows, one is set respectively on three photosensitive window rows
The printing opacity row of the light of kind color, that is, include three printing opacity rows of blue light printing opacity row, green light printing opacity row and feux rouges printing opacity row, three
UV filter coatings are set on the surface of the remote photosensitive window of a printing opacity row.The emergent light of optical lens first passes through UV filter coatings by UV
After light filters out, enter back into transmittance section, obtain red, green and blue three-color light, enter back into photosensitive window, turned by photoelectricity
These three optical signals are switched to electric signal by the circuit for changing chip respectively, and are synthesized, and are generated the Transmission curves shown in Fig. 7 and are corresponded to
UV excitation lights coloured image.
It can be seen from the above description that the application the above embodiments realize following technique effect：
In the contact-type image sensor of the application, UV light filter coatings are arranged on the surface of photoelectric conversion chip, i.e.,
Setting is contacted with photoelectric conversion chip, when the imaging sensor makes, it is only necessary to photoelectric conversion chip and UV will be provided with
The wiring board of filter coating is arranged in the structure of fixed position or fixation, without additionally pacifying to UV filter coatings
Dress, it is higher so as to avoid UV filter coating difficulty is installed in the prior art, it also avoid UV filter coatings of the prior art and pacifying
The problem of dress process is vulnerable to corrosion, ensure that UV filter coatings have well stable performance, so as to ensure that contact type image
Sensor has good performance.
The foregoing is merely the preferred embodiment of the application, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of contact-type image sensor, it is characterised in that the contact-type image sensor includes：
Wiring board (5)；
Photoelectric conversion chip (6), is arranged on the surface of the wiring board (5), and is electrically connected with the wiring board (5)；And
UV filter coatings (8), are arranged on the surface of the remote wiring board (5) of the photoelectric conversion chip (6).
2. contact-type image sensor according to claim 1, it is characterised in that the contact-type image sensor also wraps
Include：
Framework (1), including the first accommodating chamber, the wiring board (5), the photoelectric conversion chip (6) and the UV filter coatings
(8) it is arranged in first accommodating chamber.
3. contact-type image sensor according to claim 1, it is characterised in that the photoelectric conversion chip (6) is remote
The side of the wiring board (5) includes multiple photosensitive windows (60), the UV filter coatings (8) photosensitive window at least described in covering part
Mouth (60).
4. contact-type image sensor according to claim 3, it is characterised in that UV filter coatings (8) covering is all
The photosensitive window (60).
5. contact-type image sensor according to claim 3, it is characterised in that multiple photosensitive windows (60) are formed
At least one photosensitive window row, the line direction of the photosensitive window row are vertical with the moving direction of determinand.
6. contact-type image sensor according to claim 5, it is characterised in that the contact-type image sensor also wraps
Include：
Multiple transmittance sections (7), multiple transmittance sections (7) be arranged on the photosensitive window (60) and the UV filter coatings (8) it
Between, multiple transmittance sections (7) include feux rouges transmittance section (71), green light transmittance section (72) and blue light transmittance section (73), described
Transmittance section (7) corresponds with the photosensitive window (60) and sets.
7. contact-type image sensor according to claim 6, it is characterised in that the photoelectric conversion chip (6) includes
One photosensitive window row, multiple transmittance sections (7) arrange along the line direction, form multiple light transmitting cells, each institute
Stating light transmitting cells includes the feux rouges transmittance section (71), the green light transmittance section (72) and the blue light transmittance section (73).
8. contact-type image sensor according to claim 6, it is characterised in that the photoelectric conversion chip (6) includes
At least three photosensitive window rows, at least three photosensitive window rows are arranged along the determinand moving direction, Duo Gesuo
State transmittance section (7) and form at least three printing opacity rows, multiple printing opacity rows include feux rouges printing opacity row, green light printing opacity row and blue light
Printing opacity row, wherein, the feux rouges printing opacity row includes the multiple feux rouges transmittance sections (71) arranged along the line direction, described green
Light printing opacity row includes the multiple green light transmittance sections (72) arranged along the line direction, and the blue light printing opacity row is included along described
Multiple blue light transmittance sections (73) of line direction arrangement.
9. contact-type image sensor according to claim 8, it is characterised in that multiple printing opacity rows include multiple
Light row unit, multiple printing opacity row units are arranged along the moving direction of the determinand, and each printing opacity row unit includes an institute
State feux rouges printing opacity row, a green light printing opacity row and a blue light printing opacity row.
10. contact-type image sensor according to claim 2, it is characterised in that the framework (1) further includes the second appearance
Receive chamber and the 3rd accommodating chamber, first accommodating chamber, second accommodating chamber and the 3rd accommodating chamber is mutually isolated sets
Put, second accommodating chamber and the 3rd accommodating chamber are respectively positioned on the remote opto-electronic conversion core of the UV filter coatings (8)
Piece (6) side, the contact-type image sensor further include：
Optical lens (2), sets in second accommodating chamber and is set with the photoelectric conversion chip (6) face；
Light source (3), is arranged in the 3rd accommodating chamber；And
Transparent panel (4), is arranged on the outer surface of remote wiring board (5) side of the framework (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015055.XA CN108040187A (en) | 2017-10-25 | 2017-10-25 | Contact-type image sensor |
| PCT/CN2018/102530 WO2019080631A1 (en) | 2017-10-25 | 2018-08-27 | Contact image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015055.XA CN108040187A (en) | 2017-10-25 | 2017-10-25 | Contact-type image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108040187A true CN108040187A (en) | 2018-05-15 |
Family
ID=62092553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711015055.XA Withdrawn CN108040187A (en) | 2017-10-25 | 2017-10-25 | Contact-type image sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108040187A (en) |
| WO (1) | WO2019080631A1 (en) |
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| CN109274906A (en) * | 2018-10-31 | 2019-01-25 | 威海华菱光电股份有限公司 | Image processing apparatus |
| WO2019080631A1 (en) * | 2017-10-25 | 2019-05-02 | 威海华菱光电股份有限公司 | Contact image sensor |
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Also Published As
| Publication number | Publication date |
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| WO2019080631A1 (en) | 2019-05-02 |
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Application publication date: 20180515 |