CN102271210A - Contact image sensor - Google Patents
Contact image sensor Download PDFInfo
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- CN102271210A CN102271210A CN2011101890670A CN201110189067A CN102271210A CN 102271210 A CN102271210 A CN 102271210A CN 2011101890670 A CN2011101890670 A CN 2011101890670A CN 201110189067 A CN201110189067 A CN 201110189067A CN 102271210 A CN102271210 A CN 102271210A
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- light
- lens
- diffusing film
- image sensor
- conversion chip
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Abstract
The invention relates to a contact image sensor, which comprises a frame with a supporting function. An optical lens is arranged in the frame. The lateral surfaces of the lens are provided with a light source with a light guide body structure respectively. A transparent plate is arranged above the lens. A circuit board is arranged below the lens. Photoelectric conversion chips are arranged under the lens on the circuit board. The top surface of the photoelectric conversion chip is provided with a photosensitive window. A circuit is arranged in the photoelectric conversion chip. The contact image sensor is characterized in that: diffuser films are arranged above the light guide body structure of the light sources; the two sides of the diffuser film are connected with the frame on the two sides of the light guide body structure; the sections of the diffuser films and the light guide body structures are triangular; the two sides formed by the diffuser films form a right included angle; and the diffuser film has the thickness of 0.05 to 0.20mm and the visible light transmittance of 10 to 80 percent. When the contact image sensor (CIS) works, the light sources with the light guide body structures more uniformly irradiate a manuscript by the diffuser films, light reflected by the manuscript may be received by the photoelectric conversion chips of the CIS, optical signals received by the photoelectric conversion chips can be more completely and accurately converted into electric signals and output image information is more complete and accurate; and the contact image sensor has vast application prospect.
Description
Technical field
The present invention relates to a kind of contact-type image sensor, is the contact-type image sensor that attaches light-diffusing film on a kind of light conductor specifically.
Background technology
The existing contact image sensor architecture as shown in Figure 1, CIS comprises passive framework 1, be provided with optical lens 2 in the framework 1, the side of lens 2 is provided with the light source 3 of light conductor structure, the top of lens 2 is provided with transparent panel 4, the below of lens 2 is provided with wiring board 6, be positioned on the wiring board 6 lens 2 under be provided with opto-electronic conversion chip 5, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, inside is provided with circuit, the function of opto-electronic conversion chip 5 is to convert light signal to the signal of telecommunication, during work, the illumination that the light source 3 of light conductor structure sends is mapped to (original copy) on the scanned object, the image of scanned object (original copy), literal etc. produce reverberation, these reverberation pass transparent panel 4 again, partial reflection light enters optical lens 2, the reverberation that comes out from optical lens 2 other ends shines on the sensitization form of opto-electronic conversion chip 5, opto-electronic conversion chip 5 converts the light signal that receives to the signal of telecommunication, outwards export as image (literal) information, original copy constantly moves, the image of being put down in writing on it (literal) information will be read continuously, finish the image information scanning process of scanned object, the light source 3 of this contact-type image sensor adopts the light conductor structure, the light that light source light conductor 8 is sent is inhomogeneous, shine the light that is scanned body have have by force a little less than, make the image information that scans imperfect, inaccurate.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, propose complete, the contact-type image sensor accurately of a kind of luminous image information that evenly, is scanned.
The present invention can reach by following measure:
A kind of contact-type image sensor, comprise passive framework, be provided with optical lens in the framework, the side of lens is provided with the light source of light conductor structure, the top of lens is provided with transparent panel, the below of lens is provided with wiring board, be positioned on the wiring board lens under be provided with the opto-electronic conversion chip, opto-electronic conversion chip top surface is provided with the sensitization form, the opto-electronic conversion chip internal is provided with circuit, it is characterized in that light source light conductor top is provided with light-diffusing film, the both sides of astigmatism mould are connected with the framework of light conductor both sides respectively, the cross section of light-diffusing film and light conductor is triangular in shape, the angle on two limits that light-diffusing film is formed is rectangular, and light-diffusing film thickness is 0.05～0.20mm, and the visible light transmissivity of light-diffusing film is 10%～80%.
The both sides of light-diffusing film of the present invention are connected with the framework of light conductor both sides respectively, the cross section semicircular in shape of light-diffusing film and light conductor, and light conductor is a straight flange, light-diffusing film constitutes arc.
Light-diffusing film of the present invention also can be attached on the light conductor, and the shape of light-diffusing film is identical with the shape of light conductor.
The function of opto-electronic conversion chip is to convert light signal to the signal of telecommunication among the present invention, during work, the light source of CIS light conductor structure shines on the original copy through light-diffusing film more equably, will be accepted by the opto-electronic conversion chip of CIS through the original copy reverberation, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, outwards export as image (literal) information, original copy constantly moves, the image of being put down in writing on it (literal) information will be read continuously, finish scanned object image information scanning process, the light that the invention enables light conductor to send shines on the original copy more equably, the light signal that makes the opto-electronic conversion chip receive converts signal of telecommunication complete and accurate more to, is with a wide range of applications.
Description of drawings
Fig. 1 is an application background structural representation of the present invention.
Fig. 2 is attached to light conductor inside for structural representation 1(light-diffusing film of the present invention).
Fig. 3 is attached to the light conductor outside for structural representation 2(light-diffusing film of the present invention).
Fig. 4 is a fillet for the corresponding light-diffusing film in structural representation 3(light conductor outgoing of the present invention inclined-plane).
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in the figure, a kind of contact-type image sensor, comprise passive framework 1, be provided with optical lens 2 in the framework, the side of lens 2 is provided with the light source 3 of light conductor structure, the top of lens 2 is provided with transparent panel 4, the below of lens 2 is provided with wiring board 6, be positioned on the wiring board 5 lens under be provided with opto-electronic conversion chip 5, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, the opto-electronic conversion chip internal is provided with circuit, the structure and the connected mode of above-mentioned kind of part are same as the prior art, this does not give unnecessary details, the invention is characterized in that the light source top is provided with light-diffusing film 7, the both sides of astigmatism mould 7 are connected with the framework of light conductor 8 both sides respectively, light-diffusing film 7 and the cross section of light conductor 8 (also have be quadrangle) triangular in shape, the angle on two limits (penetrating plain edge) that light-diffusing film 7 is formed is rectangular, most convenient processing like this, also be shaped easily, result of use is best, because equilibrium is carried out to the light that light conductor sends in two limits by the light-diffusing film right angle, play a part to diffuse scattering, light-diffusing film thickness is 0.05～0.20mm, and the visible light transmissivity of light-diffusing film is 10%～80%.During work, the light source of CIS light conductor structure shines on the original copy through light-diffusing film more equably, will be accepted by the opto-electronic conversion chip of CIS through the original copy reverberation, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, outwards export as image (literal) information, original copy constantly moves, the image of being put down in writing on it (literal) information will be read continuously, finish scanned object image information scanning process, the light that the present invention can make light conductor send shines on the original copy more equably, the light signal that makes the opto-electronic conversion chip receive converts signal of telecommunication complete and accurate more to, is with a wide range of applications.The both sides of light-diffusing film 7 of the present invention are connected with the framework of light conductor 8 both sides respectively, the cross section semicircular in shape of light-diffusing film 7 and light conductor 8, light conductor 8 is a straight flange, light-diffusing film 7 constitutes arc, light-diffusing film 7 of the present invention also can be attached on the light conductor 8, and the shape of light-diffusing film is identical with the shape of light conductor.
The present invention is applicable to that light source is located at a side of lens, be applicable to that also the both sides of lens all are provided with the contact-type image sensor of light source, the function of opto-electronic conversion chip is to convert light signal to the signal of telecommunication among the present invention, during work, the light source of CIS light conductor structure shines on the original copy through light-diffusing film more equably, will be accepted by the opto-electronic conversion chip of CIS through the original copy reverberation, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, outwards export as image (literal) information, original copy constantly moves, the image of being put down in writing on it (literal) information will be read continuously, finish scanned object image information scanning process, the light that the present invention can make light conductor send shines on the original copy more equably, the light signal that makes the opto-electronic conversion chip receive converts signal of telecommunication complete and accurate more to, is with a wide range of applications.
Claims (3)
1. contact-type image sensor, comprise passive framework, be provided with optical lens in the framework, the side of lens is provided with the light source of light conductor structure, the top of lens is provided with transparent panel, the below of lens is provided with wiring board, be positioned on the wiring board lens under be provided with the opto-electronic conversion chip, opto-electronic conversion chip top surface is provided with the sensitization form, the opto-electronic conversion chip internal is provided with circuit, it is characterized in that light source light conductor top is provided with light-diffusing film, the both sides of astigmatism mould are connected with the framework of light conductor both sides respectively, the cross section of light-diffusing film and light conductor is triangular in shape, the angle on two limits that light-diffusing film is formed is rectangular, and light-diffusing film thickness is 0.05～0.20mm, and the visible light transmissivity of light-diffusing film is 10%～80%.
2. a kind of contact-type image sensor according to claim 1 is characterized in that the both sides of stating light-diffusing film are connected with the framework of light conductor both sides respectively, the cross section semicircular in shape of light-diffusing film and light conductor, and light conductor is a straight flange, light-diffusing film constitutes arc.
3. a kind of contact-type image sensor according to claim 1 is characterized in that light-diffusing film of the present invention is attached on the light conductor, and the shape of light-diffusing film is identical with the shape of light conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189067.0A CN102271210B (en) | 2011-07-07 | 2011-07-07 | Contact image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189067.0A CN102271210B (en) | 2011-07-07 | 2011-07-07 | Contact image sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102271210A true CN102271210A (en) | 2011-12-07 |
| CN102271210B CN102271210B (en) | 2017-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110189067.0A Active CN102271210B (en) | 2011-07-07 | 2011-07-07 | Contact image sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102271210B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255020A (en) * | 2012-04-25 | 2014-12-31 | 三菱电机株式会社 | Illuminating apparatus, image sensor, and methods for manufacturing illuminating apparatus and image sensor |
Citations (9)
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| JP2001147328A (en) * | 1999-11-19 | 2001-05-29 | Nippon Sheet Glass Co Ltd | Rod-like light guide body and illumination device housing the same |
| JP2001242322A (en) * | 2000-03-01 | 2001-09-07 | Nippon Sheet Glass Co Ltd | Light transmission body and line illumination device |
| CN1314614A (en) * | 2000-03-16 | 2001-09-26 | 日本板硝子株式会社 | Line lighting device |
| CN1348112A (en) * | 2000-10-05 | 2002-05-08 | 惠普公司 | Low-cost transparent adapter for platform scanner with fluorescent lamp and special shape curved surface reflective mirror |
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| CN201374756Y (en) * | 2009-02-12 | 2009-12-30 | 亚泰影像科技股份有限公司 | Light guiding system for contact-type image sensor |
| CN201563157U (en) * | 2009-11-06 | 2010-08-25 | 威海华菱光电有限公司 | Contact-type image sensor |
| CN101834970A (en) * | 2009-03-11 | 2010-09-15 | 富士施乐株式会社 | Image reading apparatus |
| CN202111780U (en) * | 2011-07-07 | 2012-01-11 | 威海华菱光电有限公司 | Contact-type image sensor |
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2011
- 2011-07-07 CN CN201110189067.0A patent/CN102271210B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001147328A (en) * | 1999-11-19 | 2001-05-29 | Nippon Sheet Glass Co Ltd | Rod-like light guide body and illumination device housing the same |
| JP2001242322A (en) * | 2000-03-01 | 2001-09-07 | Nippon Sheet Glass Co Ltd | Light transmission body and line illumination device |
| CN1314614A (en) * | 2000-03-16 | 2001-09-26 | 日本板硝子株式会社 | Line lighting device |
| CN1348112A (en) * | 2000-10-05 | 2002-05-08 | 惠普公司 | Low-cost transparent adapter for platform scanner with fluorescent lamp and special shape curved surface reflective mirror |
| CN101470545A (en) * | 2007-12-27 | 2009-07-01 | 鸿富锦精密工业（深圳）有限公司 | Mouse |
| CN201374756Y (en) * | 2009-02-12 | 2009-12-30 | 亚泰影像科技股份有限公司 | Light guiding system for contact-type image sensor |
| CN101834970A (en) * | 2009-03-11 | 2010-09-15 | 富士施乐株式会社 | Image reading apparatus |
| CN201563157U (en) * | 2009-11-06 | 2010-08-25 | 威海华菱光电有限公司 | Contact-type image sensor |
| CN202111780U (en) * | 2011-07-07 | 2012-01-11 | 威海华菱光电有限公司 | Contact-type image sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255020A (en) * | 2012-04-25 | 2014-12-31 | 三菱电机株式会社 | Illuminating apparatus, image sensor, and methods for manufacturing illuminating apparatus and image sensor |
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|---|---|
| CN102271210B (en) | 2017-02-08 |
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Address after: 264209 Weihai torch hi tech Industrial Development Zone, Shandong science and technology road, No. 179 Applicant after: Weihai Hualing Opto-electronics Co.,Ltd. Address before: 264209 Weihai high tech Industrial Development Zone, Shandong, Torch Road, 159 Applicant before: Weihai Hualing Opto-electronics Co., Ltd. |
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