CN202652338U - Contact-type imaging sensor - Google Patents
Contact-type imaging sensor Download PDFInfo
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- CN202652338U CN202652338U CN 201220359412 CN201220359412U CN202652338U CN 202652338 U CN202652338 U CN 202652338U CN 201220359412 CN201220359412 CN 201220359412 CN 201220359412 U CN201220359412 U CN 201220359412U CN 202652338 U CN202652338 U CN 202652338U
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- type imaging
- imaging sensor
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Abstract
The utility model discloses a contact-type imaging sensor. The contact-type imaging sensor comprises a sensor substrate. Sensitive portions are arranged on the sensor substrate in a line, lenses are arranged on the sensitive portions on the sensor substrate, light sources and frames which can contain the sensor substrate, the lenses and the light sources are arranged on one sides of the lenses, and light-penetrating plates carrying manuscripts are arranged on the upper portions of the frames. The contact-type imaging sensor is characterized in that craving figures are arranged inside the light-penetrating plates, the shapes and the positions of the figures are different so that the figures have different functions and can be used as standard of contact-type imaging sensor adjustment and an astigmatism shape of a contact-type imaging sensor light source. The contact-type imaging sensor improves adjustment standard and position accuracy of the astigmatism shape, the working procedures such as clipping and pasting are reduced, anamorphose and damages in the using process of traditional white standard and an astigmatism film are effectively avoided, production efficiency is greatly improved, cost of the contact-type imaging sensor is reduced, performance of the contact-type imaging sensor is improved and service life of the contact-type imaging sensor is prolonged.
Description
Technical field
The present invention relates to a kind of image read-out, is a kind of contact-type image sensor specifically.
Background technology
Fig. 1-the 4th, the sectional drawing of existing contact-type image sensor, 1 is illuminating source among the figure, the 2nd, lens, the 3rd, the photographic department (photosensitive integrated circuit) of receiver lens 2 light that converges, the 4th, carry the sensor base plate of the photosensitive integrated circuit 3 be arranged in a straight line, the 6th, hold the framework of light source 1, lens 2, sensor base plate 4,5 are arranged on the light-passing board of the lift-launch original copy on the framework 6,10 is original copy, and 11 are the white reference of adjustment contact-type image sensor, and 12 is light-diffusing film
In above-mentioned contact-type image sensor, the light that light source 1 sends, see through light-passing board 5, shine on the original copy 10 of outside, the literal black region light on the original copy 10 is absorbed, and in other white undercolor region of original copy, light almost 100% is reflected, these reverberation pass glass plate 5 again, are collected by lens 2, shine the photosensitive area of the photographic department 3 on the sensor base plate 4.Photographic department 3 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 exports as image (literal) information.Original copy is constantly mobile, and the image information of putting down in writing on it (literal) will be read continuously.
And wherein the effect of white reference 11 is exactly, the light that light source 1 sends, shine on the white reference 11, shine and enter lens 2 after light on the white reference 11 is reflected, be pooled to the photosensitive area of the photographic department 3 on the sensor base plate 4, through opto-electronic conversion, output electrical signals, the output valve of this signal of telecommunication is just as the benchmark of adjustment contact-type image sensor.
The effect of the light-diffusing film 12 in the above-mentioned contact-type image sensor is: the light that light source 1 sends, through behind the light-diffusing film 12, through scattering, the light intensity uniformity that can become can improve the performance of contact-type image sensor so greatly.
There is following problem in the above-mentioned contact-type image sensor: the one, white reference and light-diffusing film all need the operations such as cutting, stickup, and process is numerous and diverse, the wasting manpower and material resources; The positional precision of cutting dimensional accuracy, stickup is all lower; The 2nd, white reference traditionally and light-diffusing film generally stick on the lower surface of light-passing board by double faced adhesive tape etc., easily come off and because long-term irradiation, and high temperature and contacting with air can cause agingly, makes the white reference distortion, and the light-diffusing film effect is unstable.
Summary of the invention
Technical problem to be solved by this invention is: overcome existing contact-type image sensor white reference and light-diffusing film operation numerous and diverse, precision is not high, and the shortcoming such as ageing failure, propose a kind of laser-engraving technique that utilizes and make, be present in contact-type image sensor light guide plate inside, that be used as white reference and light-diffusing film pattern.
The present invention can reach by following measure:
A kind of contact-type image sensor, comprise sensor base plate, carry the photosensitive integrated circuit that is arranged in a straight line on the sensor base plate, it is photographic department, be provided with lens above the photographic department on the sensor base plate, one side of lens is provided with light source, and can hold the sensor substrate, lens, the framework of light source, the top of framework is provided with the light-passing board that carries original copy, it is characterized in that being provided with in light-passing board inside the engraving pattern that the light shot point got by laser forms, this figure utilizes laser-engraving technique to be made, we know, present body laser inner carving technology is very ripe, its principle is exactly that the laser that focuses on will be got in quartzy inside one by one light shot point, each blow-up point diameter is 40 ~ 80 μ m, laser head swings, one of each carve forms a line by series of points, then laser head moves up and down, many lines of while carve, just consisted of at last carving figure in the needed light-passing board, the shape of the engraving pattern of light-passing board inside can be rectangle, square, the oval arbitrary shape that waits.The efficient of laser engraving is very high, and per second can be got 3500 ~ 4000 blow-up points, if according to every millimeter 48 points of 1200DPI() design engraving pattern, the engraving pattern of 5X10mm only needed to finish in 28 seconds.
The above-mentioned engraving pattern that is arranged at light-passing board inside can be used as the white reference of adjustment contact-type image sensor, be positioned at lens directly over, stock size is 5x10mm, the edge is wide to go out rims of the lens 1 ~ 2mm.
The above-mentioned engraving pattern that is arranged at light-passing board inside also can be used as the scatter graph of scattered beam, and light is by behind this figure, and the uniformity that can become is conducive to improve the performance of contact-type image sensor.
The above-mentioned scatter graph that is arranged at light-passing board inside generally is rectangle, is positioned at beam projecting mouth top, the overlapping 0.1 ~ 0.3mm of the inward flange of scatter graph and rims of the lens, but can not block lens transparent hole.
The present invention is owing to arranging engraving pattern in the inside of light-passing board; the shape of figure; the position is different; its effect is also different; can be used as the benchmark of contact-type image sensor adjustment; also can be as the astigmatic figure of contact-type image sensor light source; the present invention has improved the positional precision of aiming boss and astigmatic figure; and reduced cutting; the operations such as stickup; effectively avoided the distortion in use of traditional white reference and light-diffusing film; damage; greatly improve production efficiency, reduced the cost of contact-type image sensor; improved the performance of contact-type image sensor; prolonged the useful life of contact-type image sensor.
Description of drawings
Fig. 1 is existing sectional drawing with contact-type image sensor of white reference.
The existing vertical view with contact-type image sensor of white reference of Fig. 2.
Fig. 3 is existing sectional drawing with contact-type image sensor of light-diffusing film.
Fig. 4 is existing vertical view with contact-type image sensor of light-diffusing film.
Fig. 5 is the sectional drawing of contact-type image sensor of the present invention.
Fig. 6 is the vertical view of contact-type image sensor of the present invention.
Mark among the figure: the bucking ladder on 1 light source, 2 lens, 3 photographic departments, 4 sensor base plates, 5 light-passing boards, 6 frameworks, 7 light-passing boards, 8 reflex reflectors, 10 original copys, 11 white reference figures, 12 light-diffusing film figures.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Such as accompanying drawing Fig. 5, shown in Figure 6, the 1st, illuminating source, the 2nd, lens, the 3rd, the photographic department of receiver lens 2 light that converges, it is photosensitive integrated circuit, the 4th, the sensor base plate of the photosensitive integrated circuit 3 that lift-launch is arranged in a straight line, the 6th, hold light source 1, lens 2, the framework of sensor base plate 4,5 are arranged on the light-passing board of the lift-launch original copy on framework 6 tops, the structure of above-mentioned each part and the interconnected relationship between them are same as the prior art, this does not give unnecessary details, 11 is the inner engraving pattern of white reference of light-passing board 5 interior settings among the present invention, this figure be positioned at lens directly over, be of a size of 5x10mm, the edge is wide to go out rims of the lens 1 ~ 2mm, size and density through particular design engraving dot matrix, make light-passing board 5 inner engraving patterns, on the light-passing board 5, lower two sides forms smooth smooth plane, fineness preferably, reach reflecting effect and colourity requirement, the light that light source 1 sends shines on the white reference figure 11 by the light-passing board lower surface, white reference figure 11 reflects light, reverberation enters lens 2, lens 2 are pooled to light the photosensitive area of the photographic department 3 on the sensor base plate 4, through opto-electronic conversion, output electrical signals, the output valve of this signal of telecommunication is just as the benchmark of adjustment contact-type image sensor.
12 is the astigmatic inner engraving pattern of light-passing board 5 interior settings among the present invention, this astigmatism figure generally is rectangle, be positioned at beam projecting mouth top, overlapping 0.1 ~ the 0.3mm of the inward flange of scatter graph and rims of the lens, but can not block lens transparent hole, the astigmatism figure is to form through the size of particular design engraving dot matrix and the light shot point of being got by laser of density, makes the engraving pattern of light-passing board 5 inside play astigmatic effect.The light that light source 1 sends shines on the astigmatic figure 12 by the light-passing board lower surface, by being scattered into the uniform light of brightness behind the astigmatic figure 12.The uniform light of brightness is reflected after shining on the original copy 10, and these reverberation pass glass plate 5 again, is collected by lens 2, shines the photosensitive area of the photographic department 3 on the sensor base plate 4.Photographic department 3 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 exports as image (literal) information.Original copy is constantly mobile, and the image information of putting down in writing on it (literal) will be read continuously.The uniform incident optical energy of brightness improves the reading quality of image greatly; the present invention has improved the positional precision of aiming boss and astigmatic figure; and the operations such as cutting, stickup have been reduced; effectively avoided distortion, the damage in use of traditional white reference and light-diffusing film, reduced contact-type image sensor price, improved contact-type image sensor performance, prolonged useful life of contact-type image sensor.
Claims (3)
1. contact-type image sensor, comprise sensor base plate, carry the photographic department that is arranged in a straight line on the sensor base plate, be provided with lens above the photographic department on the sensor base plate, one side of lens is provided with light source, and the framework that can hold the sensor substrate, lens, light source, the top of framework is provided with the light-passing board that carries original copy, and the inside that it is characterized by light-passing board is provided with the engraving pattern that the light shot point got by laser forms.
2. a kind of contact-type image sensor according to claim 1, it is characterized in that engraving pattern is scatter graph, engraving pattern is arranged on the inside of the light-passing board of lens top, engraving pattern is two rectangles, be located at respectively the lens both sides, overlapping 0.1 ~ the 0.3mm of the inward flange of rectangular engraving pattern and rims of the lens, lens transparent hole are located between the two rectangle engraving patterns.
3. a kind of contact-type image sensor according to claim 1 is characterized in that engraving pattern is reference pattern, engraving pattern be positioned at lens directly over the inside of light-passing board, the engraving pattern edge is wide to go out rims of the lens 1 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359412 CN202652338U (en) | 2012-07-24 | 2012-07-24 | Contact-type imaging sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359412 CN202652338U (en) | 2012-07-24 | 2012-07-24 | Contact-type imaging sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202652338U true CN202652338U (en) | 2013-01-02 |
Family
ID=47421362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359412 Withdrawn - After Issue CN202652338U (en) | 2012-07-24 | 2012-07-24 | Contact-type imaging sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202652338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769712A (en) * | 2012-07-24 | 2012-11-07 | 威海华菱光电股份有限公司 | Contact-type image sensor |
-
2012
- 2012-07-24 CN CN 201220359412 patent/CN202652338U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769712A (en) * | 2012-07-24 | 2012-11-07 | 威海华菱光电股份有限公司 | Contact-type image sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20150114 |
|
| RGAV | Abandon patent right to avoid regrant |