CN101783853A - Contact-type image sensor - Google Patents
Contact-type image sensor Download PDFInfo
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- CN101783853A CN101783853A CN200910013792A CN200910013792A CN101783853A CN 101783853 A CN101783853 A CN 101783853A CN 200910013792 A CN200910013792 A CN 200910013792A CN 200910013792 A CN200910013792 A CN 200910013792A CN 101783853 A CN101783853 A CN 101783853A
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Abstract
The invention discloses a contact-type image sensor for reading an anti-counterfeiting mark. The sensor comprises a sensor substrate, wherein a photosensitive part is carried on the sensor substrate and arranged in a straight line; a lens is arranged above the photosensitive part on the sensor substrate; one side of the lens is provided with a light source and a frame capable of accommodating the sensor substrate, the lens and the light source; and the upper part of the frame is provided with a transparent plate for carrying a manuscript. The sensor is characterized in that: the lens and the transparent plate are oblique, namely, the lens forms a specific angle with the transparent plate; when light emitted from the light source irradiates the manuscript, the light irradiating the manuscript is reflected back to the transparent plate by the manuscript and the reflected light may comprise the light of various angles after reflection, refraction, scattering and the like; however, only light rays matched with an installation angle of the lens can enter the lens and be gathered on the photosensitive part, and the angle is that required for reading the anti-counterfeiting mark, so that the anti-counterfeiting mark can be read to further fulfill the aim of identifying authenticity.
Description
Technical field:
The present invention relates to a kind of image read-out, particularly a kind of contact-type image sensor that can read anti-fake mark.
Background technology:
Fig. 1 is the sectional drawing of existing contact-type image sensor, 1 is illuminating source among the figure, the 5th, lens, the 4th, the photographic department (photosensitive integrated circuit) of receiver lens 5 light that converges, the 3rd, the sensor base plate of the photosensitive integrated circuit 4 that lift-launch is arranged in a straight line, the 2nd, hold the framework of light source 1, lens 5, sensor base plate 3,6 are arranged on the light-passing board of the lift-launch original copy on the framework 2, and 7 is original copy.
In above-mentioned contact-type image sensor, two kinds of the setting of light source 1, a kind of is to be provided with the closed pockets that holds light source 1 on framework 6, closed pockets is provided with relative light-passing board and is light inlet window 8 about 45 °, the wide part that light source 1 sends sees through light inlet window with about 45, light-passing board 6, shine on the original copy 7 of outside, another kind is to be provided with the groove that holds light source 1 on framework 6, be provided with light source 1 in the groove, light source 1 is made up of light source and leaded light post, leaded light post and light-passing board are about 45 °, light source sees through light-passing board 6 through the light that the leaded light post sends with about 45, shine on the original copy 7 of outside, lens 5 are vertical configuration with light-passing board 6, as mentioned above, the wide part that light source 1 sends sees through light-passing board 6 with about 45, shine on the original copy 7 of outside, character area light on the original copy 7 is partially absorbed, and be reflected at the light of other white portion of original copy, because reflection, refraction, factors such as scattering cause these reverberation to comprise the light of various angles, these reverberation pass light-passing board 6, wherein a part is collected by lens 5 with the vertical substantially light of light-passing board 6, shine the photosensitive area of the photographic department 4 on the sensor base plate 3, photographic department 4 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 formed, the light that receives converts the signal of telecommunication to after overdrive circuit output, outwards export as image (literal) information, original copy constantly moves, and the image information of being put down in writing on it (literal) will be read continuously.
Have following problem in the above-mentioned contact-type image sensor: the light that light source sends enters light-passing board with about 45 ° angle, shine on the original copy then, original copy reflects away these light, these reverberation are because reasons such as reflection, refraction, scattering can comprise the light of various angles, and wherein just enter lens with the vertical substantially reverberation of light-passing board, be pooled on the photographic department.And we know, many anti-fake marks can be observed different patterns or color from different directions, and some anti-false sign has only with it and becomes certain angle of inclination just can recognize.So existing contact-type image sensor can't read these anti-fake marks.
Summary of the invention:
Technical problem to be solved by this invention is: change the angle of accepting of existing contact-type image sensor light, propose a kind of contact-type image sensor that can read anti-fake mark.
The present invention can reach by following measure:
A kind of contact-type image sensor that can read anti-fake mark, comprise sensor base plate, carry the photosensitive integrated circuit that is arranged in a straight line on the sensor base plate, be photographic department, be provided with lens above the photographic department on the sensor base plate, a 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, it is characterized in that lens and light-passing board are skewed, and promptly lens become specific angle with light-passing board.
Lens among the present invention are perpendicular with the sensor base plate that carries photosensitive integrated circuit, so that photographic department can better be accepted the light signal of reflected back.
Light source among the present invention is to be provided with the closed pockets that holds light source 1 on framework, light inlet window on the closed pockets parallels with light-passing board, so that the light that light source penetrates enters light-passing board with vertical direction, shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation can comprise the light of various angles through reflections, refraction, scattering etc., and the light that has only the setting angle with lens to coincide substantially just can enter lens and be pooled on the photographic department.
Light source of the present invention can be made up of light source and leaded light post, leaded light post and light-passing board are vertical configuration, the light emission direction and the light-passing board that are the leaded light post are perpendicular, so that the light that light source penetrates enters light-passing board with vertical direction, shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation are through reflection, refraction, scattering etc., can comprise the light of various angles, and the light that has only the setting angle with lens to coincide substantially just can enter lens and be pooled on the photographic department.
Light source of the present invention can be made up of light source and leaded light post, leaded light post and light-passing board are vertical configuration, one side of leaded light post can be provided with shadow shield, can prevent that light from directly entering lens, and the light that light source is penetrated enters light-passing board with vertical direction, shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation are through reflection, refraction, scattering etc., can comprise the light of various angles, and the light that has only the setting angle with lens to coincide substantially just can enter lens and be pooled on the photographic department.
Light source of the present invention can be made up of light source and leaded light post, leaded light post and light-passing board are vertical configuration, the leaded light post is with light conducting cylinder outward, the cross section of light conducting cylinder can be rounded, square, hexagon or polygon, the height of light conducting cylinder is by the size decision of leaded light post, so that the light that light source penetrates enters light-passing board with vertical direction, shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation are through reflection, refraction, scattering etc., can comprise the light of various angles, and the light that has only the setting angle with lens to coincide substantially just can enter lens and be pooled on the photographic department.
Light source of the present invention sees through light-passing board, the light that penetrates from light source enters light-passing board, shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation are through reflection, refraction, scattering etc., can comprise the light of various angles, and the light that has only the setting angle with lens to coincide substantially just can enter lens and be pooled on the photographic department.And this angle reads the needed angle of anti-counterfeiting mark exactly.So just can read anti-counterfeiting mark, reach the purpose of distinguishing true from false.
Description of drawings:
Fig. 1 is the sectional drawing of existing contact-type image sensor.
Fig. 2 is the sectional schematic diagram of a kind of structure of the present invention.
Fig. 3 is the sectional schematic diagram of another kind of structure of the present invention.
Fig. 4 is the sectional schematic diagram of another structure of the present invention.
Mark among the figure: light source 1, framework 2, sensor base plate 3, photographic department 4, lens 5, light-passing board 6, original copy 7, light inlet window 8, shadow shield 9, light conducting cylinder 10.
Embodiment:
Below in conjunction with accompanying drawing the present invention is further described:
As shown in drawings, the 1st, illuminating source, the 5th, lens, the 4th, the photographic department of receiver lens 2 light that converges, it is photosensitive integrated circuit, the 3rd, the sensor base plate of the photosensitive integrated circuit that lift-launch is arranged in a straight line, the 2nd, hold light source 1, lens 5, the framework of sensor base plate 3,6 are arranged on the light-passing board 6 of the lift-launch original copy on framework 2 tops, the structure of above-mentioned each part of the present invention and the main distinction of prior art are: lens 2 are not square crossings with light-passing board 6, but the placement that has a certain degree, this angle reads the needed angle of anti-counterfeiting mark exactly, just can read anti-counterfeiting mark by this certain angle, reaches the purpose of distinguishing true from false, the setting of angle is according to reading anti-counterfeiting mark setting, generally between 30 ° to 60 °.
Light source among the present invention is to be provided with the closed pockets that holds light source 1 on framework 2, light inlet window 8 on the closed pockets parallels with light-passing board 6, so that the light that light source penetrates enters light-passing board plate 6 with vertical direction, shine on the original copy 7, shine light on the original copy 7 by original copy reflected back light-passing board 6, these reverberation are through reflection, refraction, scattering etc., the light that can comprise various angles, and the light that has only the setting angle with lens 5 to coincide substantially just can enter lens and be pooled on the photographic department, read anti-counterfeiting mark, reach the purpose of distinguishing true from false.
Light source of the present invention sees through light-passing board, the light that penetrates from light source enters light-passing board, shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation are through reflection, refraction, scattering etc., can comprise the light of various angles, and the light that has only the setting angle with lens to coincide substantially just can enter lens and be pooled on the photographic department.And this angle reads the needed angle of anti-counterfeiting mark exactly.So just can read anti-counterfeiting mark, reach the purpose of distinguishing true from false.
The light that light source 1 of the present invention sends, shine on the original copy 7 after entering light-passing board 6, original copy 7 reflects back light, and the angle that penetrates through these light such as reflection, refraction, scattering will become more mixed and disorderly, and the needed reading angular of anti-counterfeiting mark is also contained in the inside.
The present invention adjusts to lens the needed reading angular of anti-counterfeiting mark exactly, and the light that reflects of anti-counterfeiting mark will be collected by lens 5 like this, shines the photosensitive area of the photographic department 4 on the sensor base plate 3.Photographic department 4 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 of reception converts the signal of telecommunication to after overdrive circuit output is outwards exported as image (literal) information.Original copy constantly moves, and anti-counterfeiting information will be read, thereby reaches the purpose of distinguishing true from false.
Claims (6)
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, it is characterized in that lens and light-passing board are skewed.
2. a kind of contact-type image sensor according to claim 1 is characterized in that lens are perpendicular with the sensor base plate that carries photosensitive integrated circuit.
3. a kind of contact-type image sensor according to claim 1 is characterized in that light source is to be provided with the closed pockets that holds light source 1 on framework, and the light inlet window on the closed pockets parallels with light-passing board.
4. a kind of contact-type image sensor according to claim 1 is characterized in that light source is made up of light source and leaded light post, and leaded light post and light-passing board are vertical configuration.
5. a kind of contact-type image sensor according to claim 4 is characterized in that light source is made up of light source and leaded light post, and leaded light post and light-passing board are vertical configuration, and a side of leaded light post can be provided with shadow shield.
6. a kind of contact-type image sensor according to claim 4 is characterized in that light source is made up of light source and leaded light post, and leaded light post and light-passing board are vertical configuration, and the leaded light post is with light conducting cylinder outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910013792A CN101783853A (en) | 2009-01-15 | 2009-01-15 | Contact-type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910013792A CN101783853A (en) | 2009-01-15 | 2009-01-15 | Contact-type image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101783853A true CN101783853A (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910013792A Pending CN101783853A (en) | 2009-01-15 | 2009-01-15 | Contact-type image sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006391A (en) * | 2010-12-09 | 2011-04-06 | 威海华菱光电有限公司 | Contact type image sensor |
| CN102014234A (en) * | 2010-12-22 | 2011-04-13 | 威海华菱光电有限公司 | Contact image sensor |
| CN104580807A (en) * | 2015-01-20 | 2015-04-29 | 威海华菱光电股份有限公司 | Contact type image sensor |
| CN109546947A (en) * | 2018-12-25 | 2019-03-29 | 广西赫阳能源科技有限公司 | A kind of automatic adjustment photovoltaic module tilt angle device |
| CN110099190A (en) * | 2019-04-22 | 2019-08-06 | 威海华菱光电股份有限公司 | Contact-type image sensor and detection device |
| CN115718290A (en) * | 2021-08-23 | 2023-02-28 | 原相科技股份有限公司 | Optical machine with multiple light sources and packaging structure thereof |
-
2009
- 2009-01-15 CN CN200910013792A patent/CN101783853A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006391A (en) * | 2010-12-09 | 2011-04-06 | 威海华菱光电有限公司 | Contact type image sensor |
| CN102014234A (en) * | 2010-12-22 | 2011-04-13 | 威海华菱光电有限公司 | Contact image sensor |
| CN104580807A (en) * | 2015-01-20 | 2015-04-29 | 威海华菱光电股份有限公司 | Contact type image sensor |
| CN104580807B (en) * | 2015-01-20 | 2018-02-02 | 威海华菱光电股份有限公司 | Contact-type image sensor |
| CN109546947A (en) * | 2018-12-25 | 2019-03-29 | 广西赫阳能源科技有限公司 | A kind of automatic adjustment photovoltaic module tilt angle device |
| CN110099190A (en) * | 2019-04-22 | 2019-08-06 | 威海华菱光电股份有限公司 | Contact-type image sensor and detection device |
| CN115718290A (en) * | 2021-08-23 | 2023-02-28 | 原相科技股份有限公司 | Optical machine with multiple light sources and packaging structure thereof |
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Application publication date: 20100721 |