CN103335279A - Light-emitting device and image sensor - Google Patents
Light-emitting device and image sensor Download PDFInfo
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- CN103335279A CN103335279A CN201310279227XA CN201310279227A CN103335279A CN 103335279 A CN103335279 A CN 103335279A CN 201310279227X A CN201310279227X A CN 201310279227XA CN 201310279227 A CN201310279227 A CN 201310279227A CN 103335279 A CN103335279 A CN 103335279A
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Abstract
The invention provides a light-emitting device and an image sensor. The light-emitting device comprises a first light source and a first light guiding part, wherein the first light guiding part is arranged at the position of a light outlet of the first light source in an adjustable angle mode to change a light outlet angle of the first light guiding part. Due to the fact that the angle between the first light guiding part and the first light source is adjustable, an outgoing angle of light of the first light source can be changed through changes of the included angle between the first light guiding part and the first light source so as to change an incoming angle of light which lights on an image, and the light-emitting device can be used for identifying a false proof mark which is made of optically variable ink and the hologram image. Meanwhile, the light-emitting device has the advantages of being simple in structure and low in manufacturing cost.
Description
Technical field
The present invention relates to sensor technical field, more specifically, relate to a kind of light-emitting device and imageing sensor.
Background technology
Along with the continuous development of anti-counterfeiting technology, optical disclour printing ink and hologram image are widely used in false proof field.Optical disclour printing ink can be different along with the incident angle of extraneous light with hologram image, and present different colors or pattern.Therefore, in order to identify the anti-fake mark that optical disclour printing ink and hologram image are made, need to change the incidence angle of extraneous light.
Imageing sensor of the prior art (for example: contact-type image sensor), because the shooting angle of light-emitting device (and the angle between the horizontal direction is 45 degree) is constant all the time, thereby can't be for identifying the anti-fake mark that optical disclour printing ink and hologram image are made.
Summary of the invention
The present invention aims to provide a kind of light-emitting device and imageing sensor, to solve in the prior art the constant problem that causes identifying the anti-fake mark that optical disclour printing ink and hologram image make of shooting angle owing to light-emitting device.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of light-emitting device, comprising: first light source; The save land light-emitting window that is arranged on first light source of first light guide, the first light guide adjustable angle is sentenced the rising angle that changes first light guide.
Further, first light guide is the tube-like piece with light-conductive hole, is provided with first angle between the axis of light-conductive hole and the axis of tube-like piece, the corresponding setting of light-emitting window of light-conductive hole and first light source.
Further, the sidewall of light-conductive hole comprises first light guiding surface and second light guiding surface, is provided with second angle between first light guiding surface and second light guiding surface.
Further, the number of first light guide is a plurality of, and a plurality of first light guides are arranged in order setting.
Further, the rising angle difference of at least two first light guides.
Further, first light guide is optical fiber.
Further, first light guide is the printing opacity post.
According to another aspect of the present invention, a kind of imageing sensor is provided, comprise light-passing board, lens, substrate, photographic department, mounting box and first light-emitting device, light-passing board is arranged on the upper end of mounting box, and substrate is arranged on the lower end of mounting box, and photographic department is arranged on the substrate, first light-emitting device is above-mentioned light-emitting device, first light-emitting device is arranged on the inside of mounting box, and lens are arranged in the reflected light path of first light-emitting device, the corresponding setting with lens of photographic department.
Further, imageing sensor also comprises second light-emitting device, and second light-emitting device comprises secondary light source, and first light source of secondary light source and first light-emitting device is separately positioned on the both sides of lens.
Further, second light-emitting device also comprises second light guide, the light-emitting window place that the second light guide adjustable angle saves land and is arranged on secondary light source.
Further, second light guide and first light guide are symmetrical arranged or are crisscross arranged along the length direction of lens.
The light-emitting window place that the first light guide adjustable angle of the present invention saves land and is arranged on first light source is to change the rising angle of first light guide.Because the adjustable angle of first light guide and first light source joint, thereby by changing the angle between first light guide and first light source, can change the shooting angle of the light of first light source, be radiated at the incidence angle of the light on the image thereby change, and then make light-emitting device among the present invention can be used for identifying the anti-fake mark that optical disclour printing ink and hologram image are made.Simultaneously, the light-emitting device among the present invention has characteristics simple in structure, low cost of manufacture.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of imageing sensor in the preferred embodiment among the present invention;
Fig. 2 has schematically shown the A-A of Fig. 1 to cutaway view;
Fig. 3 has schematically shown the structural representation of imageing sensor in another preferred embodiment among the present invention;
Fig. 4 has schematically shown the B-B of Fig. 3 to cutaway view;
Fig. 5 has schematically shown the structural representation of imageing sensor in another preferred embodiment among the present invention; And
Fig. 6 has schematically shown the C-C of Fig. 5 to cutaway view.
Reference numeral among the figure: 10, first light source; 20, first light guide; 30, light-passing board; 40, lens; 50, substrate; 60, photographic department; 70, mounting box; 80, second light-emitting device; 81, secondary light source; 82, second light guide.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As first aspect of the present invention, provide a kind of light-emitting device.To shown in Figure 6, light-emitting device comprises: first light source 10 as Fig. 1; The save land light-emitting window that is arranged on first light source 10 of first light guide, 20, the first light guides, 20 adjustable angle is sentenced the rising angle that changes first light guide 20.Because the adjustable angle of first light guide 20 and first light source 10 joint, thereby by changing the angle between first light guide 20 and first light source 10, can change the shooting angle of the light of first light source 10, be radiated at the incidence angle of the light on the image thereby change, and then make light-emitting device among the present invention can be used for identifying the anti-fake mark that optical disclour printing ink and hologram image are made.Simultaneously, the light-emitting device among the present invention has characteristics simple in structure, low cost of manufacture.
Preferably, first light guide 20 is optical fiber.Further, fibre-optic number is a plurality of, and many optical fibers are set up in parallel.By changing the position relation between the many optical fibers or changing angular relationship between many optical fibers and first light source 10, can change the shooting angle of the light of first light source 10, thereby make the shooting angle of the light of light-emitting device have controllability, and then improved the dependability of light-emitting device.
Preferably, to shown in Figure 6, first light guide 20 is the printing opacity post as Fig. 1.Further, the printing opacity post is cylindrical.Because the printing opacity post has reflective functions, thereby by changing angular relationship between printing opacity post and first light source 10, can change the shooting angle of the light of first light source 10.
Preferably, first light guide 20 is provided with first angle for having the tube-like piece of light-conductive hole between the axis of light-conductive hole and the axis of tube-like piece, the corresponding setting of light-emitting window of light-conductive hole and first light source 10.Further, first angle is less than 90 degree.The light that first light source 10 sends penetrates by the light-conductive hole of first light guide 20, by changing the angular relationship between first light source 10 and first light guide 20, can change the angular relationship of light-conductive hole and first light source 10, thereby make by the direction of the light of light-conductive hole outgoing controlled.Similarly, first angle between the axis by changing light-conductive hole and the axis of tube-like piece just changes light-conductive hole and is arranged on position on first light guide 20, thereby can change the shooting angle of the light of first light source 10.The staff can determine that light-conductive hole is arranged on the angle in first light guide 20 according to actual conditions, thereby makes first light guide 20 can satisfy the different operating demand.Preferably, first light guide 20 is that metal material is made.
Preferably, the sidewall of light-conductive hole comprises first light guiding surface and second light guiding surface, is provided with second angle between first light guiding surface and second light guiding surface.Because the sidewall of light-conductive hole is formed by intersecting the different light guiding surfaces that arrange, thereby the light of first light source 10 is when passing through light-conductive hole, changes according to the position that arranges of light guiding surface, thereby changed the shooting angle of the light of first light source 10.The staff can arrange the light guiding surface of different angles as required in light-conductive hole, thereby makes the beam projecting angle of light-emitting device have controllability.Preferably, second angle is greater than 90 degree and less than 180 degree.
Preferably, as shown in Figure 1, the number of first light guide 20 is a plurality of, and a plurality of first light guides 20 are arranged in order setting.Because be provided with a plurality of first light guides 20, thereby can change the shooting angle of the light in the certain-length, and do not change the shooting angle of the light of other positions, the staff can determine the use number of first light guide 20 according to the real work needs.
Preferably, the rising angle difference of at least two first light guides 20.When a plurality of first light guides 20 are installed in the light-emitting window place of first light source 10, the staff can be according to the use needs of reality, the angle position relation of each first light guide 20 of independent regulation and first light source 10, thereby make light-emitting device can satisfy different instructions for uses, enlarged the scope of application of light-emitting device.
As second aspect of the present invention, provide a kind of imageing sensor.Extremely shown in Figure 6 as Fig. 1, photosensitive integrated circuit), mounting box 70 and first light-emitting device imageing sensor for example comprises light-passing board 30, lens 40, substrate 50, photographic department 60(:, light-passing board 30 is arranged on the upper end of mounting box 70, substrate 50 is arranged on the lower end of mounting box 70, photographic department 60 is arranged on the substrate 50, first light-emitting device is above-mentioned light-emitting device, first light-emitting device is arranged on the inside of mounting box 70, and lens 40 are arranged in the reflected light path of first light-emitting device, photographic department 60 and lens 40 corresponding settings.
When using the imageing sensor among the present invention, at first the image contribution is placed on the light-passing board 30 towards imageing sensor, then the light that sends of first light source 10 through first light guide 20 after, light path changes ejaculation, light sees through light-passing board 30 and is radiated on the image contribution, the light of the character area on the image contribution is partially absorbed, and the light of the white portion on the image contribution be reflected (reflection, refraction, factors such as scattering cause these reverberation to comprise the light of various angles), lens 40 are collected this reflection ray and it are shone photographic department 60, photographic department 60 is made up of many photosensitive areas and drive circuit, the light that this drive circuit can will shine each photosensitive area carries out opto-electronic conversion, and with signal output apparatus.After the light that receives converted the signal of telecommunication to, through overdrive circuit output (outwards exporting as image or Word message), when the image contribution constantly moved, the image of putting down in writing on it or Word message will be read continuously.
In the example of the anti-fake mark that the identification optical disclour printing ink is made, when the incident angle of light not simultaneously, spectral information after the optical disclour printing ink reflection is also different, the signal of telecommunication after the different spectral information conversions is also different, therefore through the design and color of movement images, just can reach the purpose of identification anti-fake mark.
Again for example, when reading different anti-fake marks, the setting angle of first light guide 20 also should be different.
Preferably, as shown in Figure 1, a plurality of first light guides 20 are one group, and light-emitting device comprises many group first light guides 20.Owing to be provided with many group first light guides 20, thereby imageing sensor can identify the image contribution with many places anti-fake mark simultaneously, thus improved recognition efficiency, alleviated the staff labour intensity, improved the dependability of imageing sensor.Preferably, not on the same group the setting angle of first light guide 20 and first light source 10 can be different also can be identical.Simultaneously, anti-counterfeit scanning can be carried out to the image contribution in the position that is provided with first light guide 20, and normal scan is still carried out to the image contribution in the position that first light guide 20 is not set.
Preferably, first light guide 20 and mounting box 70 bonding or clampings.Because first light guide 20 and mounting box 70 clampings, thereby the staff can change the setting angle of first light guide 20 as required, improved the dependability of imageing sensor.Certainly, first light guide 20 and mounting box 70 are bonding has characteristics firm, that dependability is high that are connected.
Preferably, to shown in Figure 6, imageing sensor comprises that also second light-emitting device, 80, the second light-emitting devices 80 comprise secondary light source 81 as Fig. 3, and first light source 10 of secondary light source 81 and first light-emitting device is separately positioned on the both sides of lens 40.Owing to be provided with second light-emitting device 80, thereby increased the swept brilliance of imageing sensor, thereby further improved the dependability of imageing sensor.
Preferably, second light-emitting device 80 also comprises the light-emitting window place (please refer to Fig. 3 to Fig. 6) that second light guide, 82, the second light guides, 82 adjustable angle save land and are arranged on secondary light source 81.Owing to be provided with second light guide 82, thereby can be simultaneously the anti-fake mark of image contribution diverse location be carried out anti-counterfeit scanning, particularly have a plurality of anti-fake marks at same image contribution, and this anti-fake mark situation of needing the light of multiple different incidence angles degree to identify.The staff can be according to using needs, the number of second light guide 82 is set, and determine setting angle between second light guide 82 and the secondary light source 81, so that the anti-fake mark of image contribution can be identified by imageing sensor the while, thereby improved operating efficiency.
Preferably, second light guide 82 and first light guide 20 are symmetrical arranged or are crisscross arranged along the length direction of lens 40.When second light guide 82 and first light guide 20 are symmetrical arranged along the length direction of lens 40, can shine respectively from two angles at the anti-fake mark at same place, thereby carry out false proof discriminating.When second light guide 82 and first light guide 20 are crisscross arranged along the length direction of lens 40, can shine respectively with two different incident angles at the anti-fake mark that does not exist together, thereby carry out false proof discriminating.Certainly, the staff can also arrange the arrangement mode of second light guide 82 and first light guide 20 according to actual conditions, thereby makes the imageing sensor among the present invention can be for detection of different image contributions, and then has enlarged the scope of application of imageing sensor.
Preferably, mounting box 70 inside are provided with the enclosed slot be used to first light source 10 that holds first light-emitting device, and enclosed slot is provided with the light inlet window that relative light-passing board 30 is 45 degree.Further, first light guide 20 is arranged on the inside of mounting box 70, and corresponding setting with light inlet window.
Certainly, mounting box 70 inside can also be provided with the groove be used to first light source 10 that holds first light-emitting device, and the angle between lamp guide and the light-passing board 30 is 45 degree.First light source 10 emits beam through lamp guide and is radiated on the light-passing board 30.First light guide 20 is arranged on the inside of mounting box 70, and corresponding setting with lamp guide.
Imageing sensor among the present invention can read the anti-fake mark that color shifting ink or hologram image are made, and other need anti-fake mark or the image information of different reading angulars.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a light-emitting device is characterized in that, comprising:
First light source (10);
The save land light-emitting window that is arranged on described first light source (10) of first light guide (20), described first light guide (20) adjustable angle is sentenced the rising angle that changes described first light guide (20).
2. light-emitting device according to claim 1, it is characterized in that, described first light guide (20) is for having the tube-like piece of light-conductive hole, be provided with first angle between the axis of described light-conductive hole and the axis of described tube-like piece, the corresponding setting of light-emitting window of described light-conductive hole and described first light source (10).
3. light-emitting device according to claim 2 is characterized in that, the sidewall of described light-conductive hole comprises first light guiding surface and second light guiding surface, is provided with second angle between described first light guiding surface and described second light guiding surface.
4. light-emitting device according to claim 1 is characterized in that, the number of described first light guide (20) is a plurality of, and a plurality of described first light guides (20) are arranged in order setting.
5. light-emitting device according to claim 4 is characterized in that, the rising angle difference of at least two described first light guides (20).
6. light-emitting device according to claim 1 is characterized in that, described first light guide (20) is optical fiber.
7. light-emitting device according to claim 1 is characterized in that, described first light guide (20) is the printing opacity post.
8. imageing sensor, comprise light-passing board (30), lens (40), substrate (50), photographic department (60), mounting box (70) and first light-emitting device, described light-passing board (30) is arranged on the upper end of described mounting box (70), described substrate (50) is arranged on the lower end of described mounting box (70), described photographic department (60) is arranged on the described substrate (50), it is characterized in that, described first light-emitting device is each described light-emitting device in the claim 1 to 7, described first light-emitting device is arranged on the inside of described mounting box (70), and described lens (40) are arranged in the reflected light path of described first light-emitting device, described photographic department (60) and the corresponding setting of described lens (40).
9. imageing sensor according to claim 8, it is characterized in that, described imageing sensor also comprises second light-emitting device (80), described second light-emitting device (80) comprises secondary light source (81), and first light source (10) of described secondary light source (81) and described first light-emitting device is separately positioned on the both sides of described lens (40).
10. imageing sensor according to claim 9 is characterized in that, described second light-emitting device (80) also comprises second light guide (82), and described second light guide (82) adjustable angle saves land and is arranged on the light-emitting window place of described secondary light source (81).
11. imageing sensor according to claim 10 is characterized in that, described second light guide (82) and described first light guide (20) are symmetrical arranged or are crisscross arranged along the length direction of described lens (40).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310279227.XA CN103335279B (en) | 2013-07-04 | 2013-07-04 | Light-emitting device and imageing sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310279227.XA CN103335279B (en) | 2013-07-04 | 2013-07-04 | Light-emitting device and imageing sensor |
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| CN103335279A true CN103335279A (en) | 2013-10-02 |
| CN103335279B CN103335279B (en) | 2015-12-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065850A (en) * | 2014-07-01 | 2014-09-24 | 威海华菱光电股份有限公司 | Oblique light plate and contact-type image sensor possessing same |
| US10893175B2 (en) | 2019-02-27 | 2021-01-12 | Bendix Commercial Vehicle Systems Llc | Shadowless camera housing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201396616Y (en) * | 2009-06-25 | 2010-02-03 | 东莞华明灯具有限公司 | LED optical fiber light conducting bar lighting lamp |
| CN102006391A (en) * | 2010-12-09 | 2011-04-06 | 威海华菱光电有限公司 | Contact type image sensor |
| JP4706706B2 (en) * | 2008-01-31 | 2011-06-22 | 三菱電機株式会社 | Image sensor |
| CN102313250A (en) * | 2010-05-19 | 2012-01-11 | 奥林巴斯株式会社 | Lighting device |
| CN102494775A (en) * | 2011-12-06 | 2012-06-13 | 北京新岸线数字图像技术有限公司 | Multi-angle color collection device and detection equipment of color variable ink |
| CN102739906A (en) * | 2012-06-28 | 2012-10-17 | 威海华菱光电股份有限公司 | Contact image sensor |
| CN203349171U (en) * | 2013-07-04 | 2013-12-18 | 威海华菱光电股份有限公司 | Light-emitting device and image sensor |
-
2013
- 2013-07-04 CN CN201310279227.XA patent/CN103335279B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4706706B2 (en) * | 2008-01-31 | 2011-06-22 | 三菱電機株式会社 | Image sensor |
| CN201396616Y (en) * | 2009-06-25 | 2010-02-03 | 东莞华明灯具有限公司 | LED optical fiber light conducting bar lighting lamp |
| CN102313250A (en) * | 2010-05-19 | 2012-01-11 | 奥林巴斯株式会社 | Lighting device |
| CN102006391A (en) * | 2010-12-09 | 2011-04-06 | 威海华菱光电有限公司 | Contact type image sensor |
| CN102494775A (en) * | 2011-12-06 | 2012-06-13 | 北京新岸线数字图像技术有限公司 | Multi-angle color collection device and detection equipment of color variable ink |
| CN102739906A (en) * | 2012-06-28 | 2012-10-17 | 威海华菱光电股份有限公司 | Contact image sensor |
| CN203349171U (en) * | 2013-07-04 | 2013-12-18 | 威海华菱光电股份有限公司 | Light-emitting device and image sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065850A (en) * | 2014-07-01 | 2014-09-24 | 威海华菱光电股份有限公司 | Oblique light plate and contact-type image sensor possessing same |
| US10893175B2 (en) | 2019-02-27 | 2021-01-12 | Bendix Commercial Vehicle Systems Llc | Shadowless camera housing |
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| Publication number | Publication date |
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| CN103335279B (en) | 2015-12-02 |
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