CN102271210B - Contact image sensor - Google Patents
Contact image sensor Download PDFInfo
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- CN102271210B CN102271210B CN201110189067.0A CN201110189067A CN102271210B CN 102271210 B CN102271210 B CN 102271210B CN 201110189067 A CN201110189067 A CN 201110189067A CN 102271210 B CN102271210 B CN 102271210B
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- light
- photoelectric conversion
- lens
- diffusing film
- image sensor
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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, specifically a kind of light conductor attaches the contact of light-diffusing film
Imageing sensor.
Background technology
Existing contact-type image sensor structure is as shown in figure 1, CIS includes passive framework 1, in framework 1
It is provided with optical lenses 2, the side of lens 2 is provided with the light source 3 of guide structure, and the top of lens 2 is provided with lamella lucida 4, lens 2
Lower section is provided with wiring board 6, and what wiring board 6 was located at lens 2 is arranged right below photoelectric conversion chip 5, photoelectric conversion chip 5 top
Surface is provided with photosensitive form, inside is provided with circuit, and the function of photoelectric conversion chip 5 is to convert optical signals into the signal of telecommunication, work
When, the illumination that the light source 3 of guide structure sends is mapped on scanned object（Original copy）, scanned object（Original copy）Image,
Word etc. produces reflected light, and these reflected lights are then passed through lamella lucida 4, and part reflected light enters optical lenses 2, from optical lenses 2
Other end reflected light out is irradiated on the photosensitive form of photoelectric conversion chip 5, the light letter that photoelectric conversion chip 5 receives
Number it is converted into the signal of telecommunication, as image（Word）Information outwards exports, and original copy constantly moves, thereon described image (literary composition
Word) information will be read continuously and take off, and complete the image information scanning process of scanned object, and this contact type image passes
The light source 3 of sensor adopts guide structure, and the light that light source light conductor 8 is sent is uneven, and the light being irradiated to scanned body has by force
Have weak, make the image information scanning imperfect, inaccurate.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, proposes a kind of luminous image information uniformly, scanned complete
Whole, accurate contact-type image sensor.
The present invention can be reached by following measure：
A kind of contact-type image sensor, including passive framework, is provided with optical lenses, the side of lens in framework
Face is provided with the light source of guide structure, and the top of lens is provided with lamella lucida, and the lower section of lens is provided with wiring board, wiring board is located at
Lens be arranged right below photoelectric conversion chip, photoelectric conversion chip top surface is provided with photosensitive form, in photoelectric conversion chip
Portion is provided with circuit it is characterised in that being provided with light-diffusing film above light source light conductor, the both sides of astigmatism mould respectively with light conductor both sides
Framework is connected, and light-diffusing film is triangular in shape with the section of light conductor, and the angle on two sides of light-diffusing film composition is rectangular, 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, and light-diffusing film is cut with light conductor
Face semicircular in shape, light conductor is straight flange, and light-diffusing film constitutes arc.
Light-diffusing film of the present invention can also be attached on light conductor, the shape phase of the shape of light-diffusing film and light conductor
With.
In the present invention, the function of photoelectric conversion chip is to convert optical signals into the signal of telecommunication, and during work, CIS light conductor is tied
The light source of structure is more uniformly irradiated on original copy through light-diffusing film, will be by the opto-electronic conversion core of CIS through original copy reflected light
Piece accepts, and photoelectric conversion chip is converted into the signal of telecommunication the optical signal receiving, as image（Word）Information outwards exports, former
Original text constantly moves, and described image (word) information will be read continuously and take off thereon, completes scanned object image
Information scanning process, the invention enables the light that light conductor sends more uniformly is irradiated on original copy so that photoelectric conversion chip
The optical signal receiving is converted into the signal of telecommunication more complete and accurate, is with a wide range of applications.
Brief description
Fig. 1 is application background structural representation of the present invention.
Fig. 2 illustrates Fig. 1 for present configuration（Light-diffusing film is attached to inside light conductor）.
Fig. 3 illustrates Fig. 2 for present configuration（Light-diffusing film is attached to outside light conductor）.
Fig. 4 illustrates Fig. 3 for present configuration（The corresponding light-diffusing film in light conductor outgoing inclined-plane is fillet）.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As illustrated, a kind of contact-type image sensor, including passive framework 1, in framework, it is provided with optical lens
Mirror 2, the side of lens 2 is provided with the light source 3 of guide structure, and the top of lens 2 is provided with lamella lucida 4, and the lower section of lens 2 is provided with line
Road plate 6, what wiring board 5 was located at lens is arranged right below photoelectric conversion chip 5, and photoelectric conversion chip 5 top surface is provided with sense
It is provided with circuit, the structure of above-mentioned kind of ingredient is same as the prior art with connected mode inside light form, photoelectric conversion chip,
This does not repeat, it is a feature of the present invention that being provided with light-diffusing film 7 above light source, the both sides of astigmatism mould 7 respectively with light conductor 8 both sides
Framework is connected, and light-diffusing film 7 is triangular in shape with the section of light conductor 8（Also have in tetragon）, two sides of light-diffusing film 7 composition
（Penetrate plain edge）Angle at right angles, such most convenient processing, be also easily formed, using effect preferably because straight by light-diffusing film
Two sides at angle equalize to the light that light conductor sends, and play to the effect of diffusing scattering, and astigmatism film thickness is 0.05～
0.20mm, the visible light transmissivity of light-diffusing film is 10%～80%.During work, the light source of CIS guide structure is through light-diffusing film more
Plus be evenly radiated on original copy, will be accepted by the photoelectric conversion chip of CIS through original copy reflected light, photoelectric conversion chip handle
The optical signal receiving is converted into the signal of telecommunication, as image（Word）Information outwards exports, and original copy constantly moves, described thereon
Image (word) information will be read continuously and take off, complete scanned object image information scanning process, the present invention can
The light that light conductor sends more uniformly is irradiated on original copy so that the optical signal that photoelectric conversion chip receives is converted into
The signal of telecommunication more complete and accurate, is with a wide range of applications.The both sides of light-diffusing film 7 of the present invention respectively with 8 liang of light conductor
The framework of side is connected, the section semicircular in shape of light-diffusing film 7 and light conductor 8, and light conductor 8 is straight flange, and light-diffusing film 7 constitutes arc,
Light-diffusing film 7 of the present invention can also be attached on light conductor 8, and the shape of light-diffusing film is identical with the shape of light conductor.
The present invention is applied to the side that light source is located at lens, and the both sides being also applied for lens are designed with the contact figure of light source
As sensor, in the present invention, the function of photoelectric conversion chip is to convert optical signals into the signal of telecommunication, and during work, CIS light conductor is tied
The light source of structure is more uniformly irradiated on original copy through light-diffusing film, will be by the opto-electronic conversion core of CIS through original copy reflected light
Piece accepts, and photoelectric conversion chip is converted into the signal of telecommunication the optical signal receiving, as image（Word）Information outwards exports, former
Original text constantly moves, and described image (word) information will be read continuously and take off thereon, completes scanned object image
Information scanning process, the light that light conductor sends can be made more uniformly to be irradiated on original copy for the present invention so that opto-electronic conversion core
The optical signal that piece receives is converted into the signal of telecommunication more complete and accurate, is with a wide range of applications.
Claims (1)
1. a kind of contact-type image sensor, including passive framework, is provided with optical lenses, the side of lens in framework
It is provided with the light source of guide structure, the top of lens is provided with lamella lucida, and the lower section of lens is provided with wiring board, wiring board is located at thoroughly
Mirror be arranged right below photoelectric conversion chip, photoelectric conversion chip top surface is provided with photosensitive form, inside photoelectric conversion chip
It is provided with circuit it is characterised in that being provided with light-diffusing film above light source light conductor, the both sides frame with light conductor both sides respectively of light-diffusing film
Frame is connected, and light-diffusing film is triangular in shape with the section of light conductor or semicircle, when the section of light-diffusing film and light conductor is in triangle
During shape, at right angles, astigmatism film thickness is 0.05～0.20mm to the angle on two sides of light-diffusing film composition, the visible ray of light-diffusing film
Transmitance is 10%～80%；When light-diffusing film and the section semicircular in shape of light conductor, light conductor is straight flange, and light-diffusing film constitutes arc
Shape.
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 CN102271210A (en) | 2011-12-07 |
| CN102271210B true CN102271210B (en) | 2017-02-08 |
Family
ID=45053361
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 |
|---|---|
| CN (1) | CN102271210B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5935487B2 (en) * | 2012-04-25 | 2016-06-15 | 三菱電機株式会社 | Illumination device, image sensor, and manufacturing method thereof |
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 |
| 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 |
| 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 |
-
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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| Title |
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| 基于LED的直下式动态LCD背光源;刘佳尧等;《液晶与显示》;20080815;第23卷(第04期);第449页 * |
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| CN102271210A (en) | 2011-12-07 |
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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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