CN1138228C - Touch-type image sensor - Google Patents
Touch-type image sensor Download PDFInfo
- Publication number
- CN1138228C CN1138228C CNB011151404A CN01115140A CN1138228C CN 1138228 C CN1138228 C CN 1138228C CN B011151404 A CNB011151404 A CN B011151404A CN 01115140 A CN01115140 A CN 01115140A CN 1138228 C CN1138228 C CN 1138228C
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- CN
- China
- Prior art keywords
- glass plate
- type image
- infrared ray
- image sensor
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The present invention discloses a touch-type image sensor, which relates to an image reader, wherein a glass plate is arranged above a frame; a light source is arranged under the glass plate; a lens is arranged in the middle of the frame; arranged under the frame, a base plate is provided with a sensor; a socket is arranged on one side of the frame; the glass plate is provided with an infrared light-shielding layer. Because the glass plate is provided with the infrared light-shielding layer which can filter and absorb infrared ray reflected into the lens to improve the defocusing phenomenon and raise the resolution by more than two times, the image reader can effectively read out the information of an original manuscript and particularly can effectively read out a high-accuracy chromatic image, and is suitable for image recognition devices such as facsimile printers, scanners, paper money recognizers, etc.
Description
One technical field
The present invention relates to image read-out, say it is a kind of contact-type image sensor in detail, be applicable to pattern recognition devices such as facsimile recorder, scanner, paper money recognition machine.
Two background technologies
We know, existing facsimile recorder, scanner, the employed contact-type image sensors of pattern recognition device such as paper money recognition machine, be above framework, to be provided with glass plate, the glass plate below is provided with light source, the framework middle part is provided with lens, the framework below is provided with substrate, substrate is provided with sensor, and framework one side is provided with socket, during work, the polychromatic light that sends from light source sees through glass plate arrival original copy, the literal absorbing light of black, the original copy background color of white sees through glass plate, arrives sensor after lens focus, sensor converts light signal to electric signal and is exported by socket as Image Intelligence, and rotation rubber roll drive original copy reads the information on the original copy continuously.This contact-type image sensor, because light source is a polychromatic source, the common labour of each color light source is long different, defocus seriously, particularly infrared ray is used as a servant longlyer altogether, defocuses more serious, resolution is low, can not effectively read original copy information, particularly can not effectively read high-precision colored portrait.
The content of three inventions
The technical matters that the present invention solves is that the common labour of each color light source is long different in the polychromatic source, defocuses serious, particularly infrared ray is used as a servant longlyer altogether, defocuses more seriously, and resolution is low, can not effectively read original copy information, particularly can not effectively read high-precision colored portrait.
Technical scheme of the present invention is that the framework top is provided with glass plate, is provided with light source below the glass plate, the framework middle part is provided with lens, and the framework below is provided with substrate, and substrate is provided with sensor, framework one side is provided with socket, and the special characteristics of its primary structure are that glass plate is provided with the infrared ray light shield layer.
The present invention is because glass plate is provided with the infrared ray light shield layer, light shield layer can filter and absorb the infrared ray that reflects into lens, improves blooming effect, improves resolution more than 2 times, can effectively read original copy information, particularly can effectively read high-precision colored portrait.
Four description of drawings
Fig. 1 is a kind of synoptic diagram of the present invention, and Fig. 2 is a kind of synoptic diagram of the present invention, and Fig. 3 is a kind of synoptic diagram of the present invention.
Five embodiments
As can be seen from Figure 1, framework 6 tops are provided with glass plate 5, glass plate 5 belows are provided with light source 1, framework 6 middle parts are provided with lens 2, and framework 6 belows are provided with substrate 4, and substrate 4 is provided with sensor 3, framework 6 one sides are provided with socket 7, glass plate 5 is provided with infrared ray light shield layer 10, and infrared ray light shield layer 10 is infrared ray shading films, also can be the infrared ray opaque.During work, the polychromatic light that sends from light source 1 sees through glass plate 5 arrival original copys 8, the literal absorbing light of black, original copy 8 background colors of white see through glass plate 5, after focusing on, lens 2 arrive sensor 3, sensor 3 converts light signal to electric signal and is exported by socket 7 as Image Intelligence, rotation rubber roll 9 drive original copys 8 read the information on the original copy 8 continuously, infrared ray light shield layer 10 can filter and absorb the infrared ray that reflects into lens, improve blooming effect, improve resolution, can effectively read original copy information, particularly can effectively read high-precision colored portrait.
As can be seen from Figure 2, infrared ray light shield layer 10 is provided with light penetrating object 11, light penetrating object 11 can be light penetrating objects such as vitreum or crystal, vitreum is than the refractive index height of air, the refractive index of crystal is higher, light penetrating object 11 refractive index height can further improve resolution, and light penetrating object 11 can be square light penetrating object.As can be seen from Figure 3, light penetrating object 11 can be half-cylindrical light penetrating object, also can be the light penetrating object of other shapes, and other repeat no more as above-mentioned.
Claims (8)
1, a kind of contact-type image sensor, the framework top is provided with glass plate, and the glass plate below is provided with light source, the framework middle part is provided with lens, and the framework below is provided with substrate, and substrate is provided with sensor, framework one side is provided with socket, it is characterized in that: glass plate is provided with the infrared ray light shield layer.
2, contact-type image sensor according to claim 1 is characterized in that: said infrared ray light shield layer is an infrared ray shading film.
3, contact-type image sensor according to claim 1 is characterized in that: said infrared ray light shield layer is the infrared ray opaque.
4, contact-type image sensor according to claim 1 is characterized in that: said infrared ray light shield layer is provided with light penetrating object.
5, contact-type image sensor according to claim 4 is characterized in that: said light penetrating object is a vitreum.
6, contact-type image sensor according to claim 4 is characterized in that: said light penetrating object is a crystal.
7, according to claim 4 or 5 or 6 described contact-type image sensors, it is characterized in that: said light penetrating object is square light penetrating object.
8, according to claim 4 or 5 or 6 described contact-type image sensors, it is characterized in that: said light penetrating object is half-cylindrical light penetrating object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011151404A CN1138228C (en) | 2001-07-13 | 2001-07-13 | Touch-type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011151404A CN1138228C (en) | 2001-07-13 | 2001-07-13 | Touch-type image sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1343955A CN1343955A (en) | 2002-04-10 |
| CN1138228C true CN1138228C (en) | 2004-02-11 |
Family
ID=4661720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011151404A Expired - Lifetime CN1138228C (en) | 2001-07-13 | 2001-07-13 | Touch-type image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1138228C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3948439B2 (en) * | 2003-07-08 | 2007-07-25 | 三菱電機株式会社 | Contact image sensor and image reading apparatus using the same |
| JP4215071B2 (en) * | 2006-04-28 | 2009-01-28 | 三菱電機株式会社 | Image sensor and manufacturing method thereof |
| CN101370068B (en) * | 2007-08-14 | 2011-02-02 | 威海华菱光电有限公司 | Contact type image sensor with high reading quality and low cost |
-
2001
- 2001-07-13 CN CNB011151404A patent/CN1138228C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1343955A (en) | 2002-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEIHAI HUALING OPTOELECTRONIC CO., LTD. Free format text: FORMER OWNER: HUALING ELECTRONICS CO., LTD., SHANDONG Effective date: 20111111 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111111 Address after: 264209 Torch Road 159, hi tech District, Shandong, Weihai Patentee after: Weihai Hualing Optoelectronic Co., Ltd. Address before: 264209, Torch Building, Beiyang building, hi tech District, Shandong, Weihai Patentee before: Hualing Electronics Co., Ltd., Shandong |
|
| 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: 264209 Torch Road 159, hi tech District, Shandong, Weihai Patentee before: Weihai Hualing Optoelectronic Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20040211 |
|
| CX01 | Expiry of patent term |