CN203289524U - Contact-type image sensor - Google Patents
Contact-type image sensor Download PDFInfo
- Publication number
- CN203289524U CN203289524U CN2013203055011U CN201320305501U CN203289524U CN 203289524 U CN203289524 U CN 203289524U CN 2013203055011 U CN2013203055011 U CN 2013203055011U CN 201320305501 U CN201320305501 U CN 201320305501U CN 203289524 U CN203289524 U CN 203289524U
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- glass plate
- boss
- contact
- type image
- image sensor
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Abstract
The utility model relates to an image reading device, and particularly to a contact-type image sensor. The contact-type image sensor comprises a glass plate for carrying an original copy, a light source which can emit light and radiate the light on the original copy, a sensor substrate, a photosensitive part arranged on the sensor substrate, a lens arranged between the glass plate and the sensor plate, and a framework which can accommodate and fix the glass plate, the light source, the lens and the sensor substrate. The contact-type image sensor is characterized in that a reading boss is arranged on the upper surface of the glass plate in the arranging direction of the lens, the upper surface besides the reading boss of the glass plate is provided with grooves for accommodating dust, the grooves can be arranged on the upper surface besides the boss of the glass plate in an array and can also be arranged irregularly on the upper surface besides the boss of the glass plate in an irregular shape, and the grooves are generally arranged on the upper surface of the glass plate at the two sides of the boss. The contact-type image sensor has the following advantages: 1. the dust does not easily fall on a glass reading portion during a working process; and 2. handwritings and images read are not easily distorted.
Description
Technical field
The utility model relates to a kind of image read-out, is the contact-type image sensor of the dustproof ash disposal of a kind of energy, raising scintigram quality specifically.
Background technology
Fig. 1 is the oblique view of existing contact-type image sensor, Fig. 2 is the sectional drawing schematic diagram of Fig. 1, mark in figure: the 1st, the glass plate of lift-launch original copy, the 2nd, illuminating source, the 6th, lens, the 5th, the photographic department (photosensitive integrated circuit) of receiver lens 6 light that converges, the 4th, carry the sensor base plate of the photosensitive integrated circuit 5 be arranged in a straight line, the 3rd, hold the framework of light source 2, lens 6, sensor base plate 4 and glass plate 1.
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 shown in FIG.) of outside, word black region light on original copy is absorbed, other the light of white undercolor region of original copy almost 100% is reflected, these reverberation pass glass plate 1 again, collected by lens 6, shine the photosensitive area of the photographic department 5 on sensor base plate 4, photographic department 5 be by many photosensitive areas and can will shine the light of each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output is formed, the light that receives converts the signal of telecommunication to and exports by overdrive circuit, outwards export as image (word) information.Original copy constantly moves, and the image information of putting down in writing on it (word) will be read continuously.
In above-mentioned contact-type image sensor, because glass plate 1 upper surface is whole plane, the dust that carries of paper or bank note can be attached to glass surface in the course of the work, covers light path, affects quality of scanning.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides in a kind of course of work glass to read position and is difficult for adhesive dust, is read writing contact-type image sensor clearly
The utility model can reach by following measure:
A kind of contact-type image sensor, comprise the glass plate that carries original copy, can send light and make illumination be mapped to light source, sensor base plate on original copy, the photographic department that sensor base plate is provided with, the lens that are provided with between glass plate and 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 and reading boss at the upper surface of glass plate along the lens arrangement direction.
The end surface shape that reads boss that is arranged at surface on glass described in the utility model can be trapezoidal, can be also rectangle, can also be semicircle.
The utility model can be provided with the groove that holds dust at the upper surface that reads boss glass plate in addition, groove can array the upper surface of glass plate beyond boss, groove also can be with irregular shape, be arranged at random the upper surface of boss glass plate in addition, groove generally be located at the boss both sides the upper surface of glass plate, groove also can be located at boss one side the upper surface of glass plate, the dust that carries to hold paper in the course of the work or bank note.
The utility model laterally reads boss because the upper surface at glass is provided with, so have following effect: the one, in the course of work, glass reads position and is difficult for retain dust; The 2nd, be read writing or image is difficult for distortion.
Description of drawings
Fig. 1 Fig. 2 is a kind of structural representation of prior art.
Fig. 1 is the oblique view of original contact-type image sensor.
Fig. 2 is the sectional schematic diagram of Fig. 1.
Fig. 3, Fig. 4 are the structural representations of the utility model example 1.
Fig. 3 is oblique view of the present utility model.
Fig. 4 is the sectional schematic diagram of Fig. 3.
Fig. 5 is the structural representation of the utility model example 2.
Fig. 6 is the structural representation of the utility model example 3.
Mark in figure: glass plate 1, illuminating source 2, framework 3, sensor base plate 4, photographic department 5, lens 6, read boss 7, groove 8.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Embodiment 1:
as accompanying drawing 3, shown in Figure 4, a kind of contact-type image sensor, at least comprise following part, carry the glass plate 1 of original copy, can send light and make illumination be mapped to light source 2 on original copy, sensor base plate 4, sensor base plate 4 is provided with photographic department 5, be provided with lens 5 between glass plate 1 and sensor base plate 4, can hold fixing above-mentioned glass plate 1, light source 2, the framework 1 of lens 6 and sensor base plate 4, structure and the interconnected relationship of above-mentioned each parts are same as the prior art, this does not repeat, feature of the present utility model is to be provided with and to read boss 7 at the upper surface of glass plate 1 along the lens arrangement direction, be provided with at the upper surface that reads boss glass plate 1 in addition the groove 8 that holds dust, the above-mentioned boss 7 that reads is arranged at surface on glass, its end surface shape can be rectangle, can be also trapezoidal, above-mentioned groove 8 is arranged at glass plate 1 upper surface, groove quantity can arrange arbitrarily, the light that the utility model light source 2 sends, see through glass plate 1, shine on the outer original copy (not shown in FIG.) of glass plate, the light of the word black region on 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, collected by lens 6, shine on the photosensitive area of the photographic department 5 on sensor base plate 4.Photosensitive integrated circuit be by many photosensitive areas and can will shine the light of each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output is formed, the light that receives converts the signal of telecommunication to and exports by overdrive circuit, outwards export as image (word) information, original copy constantly moves, the image information of putting down in writing on it (word) will be read continuously, the surface of glass is provided with the groove 8 that reads boss 7 and hold dust, so can effectively prevent in the course of the work glass surface adhesive dust directly over lens, avoid scanner distorsion.
Embodiment 2:
as shown in Figure 5, a kind of contact-type image sensor, at least comprise following part, carry the glass plate 1 of original copy, can send light and make illumination be mapped to light source 2 on original copy, sensor base plate 4, sensor base plate 4 is provided with photographic department 5, be provided with lens 6 between glass plate 1 and sensor base plate 4, can hold fixing above-mentioned glass plate 1, light source 2, the framework 3 of lens 5 and sensor base plate 4, structure and the interconnected relationship of above-mentioned each parts are same as the prior art, this does not repeat, feature of the present utility model is to be provided with and to read boss 7 at the upper surface of glass plate 1 along the lens arrangement direction, its end surface shape is trapezoidal, read boss 7 free from dust in the course of the work, avoid scanner distorsion.
Embodiment 3:
as shown in Figure 6, a kind of contact-type image sensor, at least comprise following part, carry the glass plate 1 of original copy, can send light and make illumination be mapped to light source 2 on original copy, sensor base plate 4, sensor base plate 4 is provided with photographic department 5, be provided with lens 6 between glass plate 1 and sensor base plate 4, can hold fixing above-mentioned glass plate 1, light source 2, the framework 3 of lens 5 and sensor base plate 4, structure and the interconnected relationship of above-mentioned each parts are same as the prior art, this does not repeat, feature of the present utility model is to be provided with and to read boss 7 at the upper surface of glass plate 1 along the lens arrangement direction, its end surface shape is semicircle.The light that the utility model light source 2 sends, see through glass plate 1, shine on the outer original copy (not shown in FIG.) of glass plate, the light of the word black region on original copy is absorbed, and in other white undercolor region of original copy, light almost 100% is reflected, and these reverberation pass glass plate 1 again, collected by lens 6, shine on the photosensitive area of the photographic department 5 on sensor base plate 4.Photosensitive integrated circuit 5 be by many photosensitive areas and can will shine the light of each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output is formed, the light that receives converts the signal of telecommunication to and exports by overdrive circuit, outwards export as image (word) information, original copy constantly moves, the image information of putting down in writing on it (word) will be read continuously, the surface of glass is provided with reads boss 7, so can effectively prevent in the course of the work glass surface adhesive dust directly over lens, avoid scanner distorsion.
Claims (5)
1. contact-type image sensor, comprise the glass plate that carries original copy, can send light and make illumination be mapped to light source, sensor base plate on original copy, the photographic department that sensor base plate is provided with, the lens that are provided with between glass plate and 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 and reading boss at the upper surface of glass plate along the lens arrangement direction.
2. a kind of contact-type image sensor according to claim 1, the end surface shape that reads boss that it is characterized in that being arranged at surface on glass is trapezoidal or rectangle or semicircle.
3. a kind of contact-type image sensor according to claim 1, is characterized in that the upper surface that reads boss glass plate in addition is provided with the groove that holds dust.
4. a kind of contact-type image sensor according to claim 3, is characterized in that the upper surface of groove array at boss glass plate in addition.
5. a kind of contact-type image sensor according to claim 3, is characterized in that groove with irregular shape, is arranged at random the upper surface of boss glass plate in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203055011U CN203289524U (en) | 2013-05-30 | 2013-05-30 | Contact-type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203055011U CN203289524U (en) | 2013-05-30 | 2013-05-30 | Contact-type image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289524U true CN203289524U (en) | 2013-11-13 |
Family
ID=49545865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203055011U Expired - Fee Related CN203289524U (en) | 2013-05-30 | 2013-05-30 | Contact-type image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289524U (en) |
-
2013
- 2013-05-30 CN CN2013203055011U patent/CN203289524U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20210530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |