CN103335279B - Light-emitting device and imageing sensor - Google Patents
Light-emitting device and imageing sensor Download PDFInfo
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- CN103335279B CN103335279B CN201310279227.XA CN201310279227A CN103335279B CN 103335279 B CN103335279 B CN 103335279B CN 201310279227 A CN201310279227 A CN 201310279227A CN 103335279 B CN103335279 B CN 103335279B
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Abstract
The invention provides a kind of light-emitting device and imageing sensor.Light-emitting device comprises: the first light source; First light guide, the save land light-emitting window that is arranged on the first light source of the first light guide adjustable angle sentences the rising angle of change first light guide.Due to the angle adjustable of the first light guide and the first light source, thus by the angle between change first light guide and the first light source, the shooting angle of the light of the first light source can be changed, thus change the incidence angle of the light be radiated on image, and then the light-emitting device in the present invention is made to can be used for the anti-fake mark identifying that optical disclour printing ink and hologram image are made.Meanwhile, the light-emitting device in the present invention has that structure is simple, the feature of low cost of manufacture.
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 development of anti-counterfeiting technology, optical disclour printing ink and hologram image are widely used in anti-counterfeit 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 the incidence angle changing extraneous light.
Imageing sensor of the prior art (such as: contact-type image sensor), because the shooting angle (and the angle between horizontal direction is 45 degree) of light-emitting device is constant all the time, the anti-fake mark identifying that optical disclour printing ink and hologram image are made thus cannot be used for.
Summary of the invention
The present invention aims to provide a kind of light-emitting device and imageing sensor, to solve the problem of the anti-fake mark causing None-identified optical disclour printing ink and hologram image to be made because the shooting angle of light-emitting device is constant in prior art.
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: the first light source; First light guide, the save land light-emitting window that is arranged on the first light source of the first light guide adjustable angle sentences the rising angle of change first light guide.
Further, the first light guide is the tube-like piece with light-conductive hole, is provided with the first angle between the axis of light-conductive hole and the axis of tube-like piece, and light-conductive hole is corresponding with the light-emitting window of the first light source to be arranged.
Further, the sidewall of light-conductive hole comprises the first light guiding surface and the second light guiding surface, is provided with the second angle between the first light guiding surface and the second light guiding surface.
Further, the number of the first light guide is multiple, and multiple first light guide is arranged in order setting.
Further, the rising angle of at least two the first light guides is different.
Further, the first light guide is optical fiber.
Further, the first light guide is printing opacity post.
According to another aspect of the present invention, provide a kind of imageing sensor, comprise light-passing board, lens, substrate, photographic department, mounting box and the 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 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 the first light-emitting device, and photographic department is corresponding with lens to be arranged.
Further, imageing sensor also comprises the second light-emitting device, and the second light-emitting device comprises secondary light source, and the first light source of secondary light source and the first light-emitting device is separately positioned on the both sides of lens.
Further, the second light-emitting device also comprises the second light guide, and the second light guide adjustable angle saves land and is arranged on the light-emitting window place of secondary light source.
Further, the second light guide and the first light guide are symmetrical arranged along the length direction of lens or are crisscross arranged.
First light guide adjustable angle of the present invention saves land and is arranged on the light-emitting window place of the first light source, to change the rising angle of the first light guide.Due to the angle adjustable of the first light guide and the first light source, thus by the angle between change first light guide and the first light source, the shooting angle of the light of the first light source can be changed, thus change the incidence angle of the light be radiated on image, and then the light-emitting device in the present invention is made to can be used for the anti-fake mark identifying that optical disclour printing ink and hologram image are made.Meanwhile, the light-emitting device in the present invention has that structure is simple, the feature of low cost of manufacture.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the structural representation of imageing sensor in a preferred embodiment in the present invention;
Fig. 2 diagrammatically illustrates the A-A of Fig. 1 to sectional view;
Fig. 3 diagrammatically illustrates the structural representation of imageing sensor in another preferred embodiment in the present invention;
Fig. 4 diagrammatically illustrates the B-B of Fig. 3 to sectional view;
Fig. 5 diagrammatically illustrates the structural representation of imageing sensor in another preferred embodiment in the present invention; And
Fig. 6 diagrammatically illustrates the C-C of Fig. 5 to sectional view.
Reference numeral in figure: 10, the first light source; 20, the first light guide; 30, light-passing board; 40, lens; 50, substrate; 60, photographic department; 70, mounting box; 80, the second light-emitting device; 81, secondary light source; 82, the second light guide.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, 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.As shown in Figures 1 to 6, light-emitting device comprises: the first light source 10; The save land light-emitting window that is arranged on the first light source 10 of first light guide 20, first light guide 20 adjustable angle sentences the rising angle of change first light guide 20.Due to the angle adjustable of the first light guide 20 and the first light source 10, thus by the angle between change first light guide 20 and the first light source 10, the shooting angle of the light of the first light source 10 can be changed, thus change the incidence angle of the light be radiated on image, and then the light-emitting device in the present invention is made to can be used for the anti-fake mark identifying that optical disclour printing ink and hologram image are made.Meanwhile, the light-emitting device in the present invention has that structure is simple, the feature of low cost of manufacture.
Preferably, the first light guide 20 is optical fiber.Further, fibre-optic number is multiple, and many optical fibers are set up in parallel.By the position relationship that changes between many optical fibers or change angular relationship between many optical fibers and the first light source 10, the shooting angle of the light of the first light source 10 can be changed, thus make the shooting angle of the light of light-emitting device have controllability, and then improve the dependability of light-emitting device.
Preferably, as shown in Figures 1 to 6, the first light guide 20 is printing opacity post.Further, printing opacity post is cylindrical.Because printing opacity post has reflective functions, thus by changing angular relationship between printing opacity post and the first light source 10, the shooting angle of the light of the first light source 10 can be changed.
Preferably, the first light guide 20, for having the tube-like piece of light-conductive hole, is provided with the first angle between the axis of light-conductive hole and the axis of tube-like piece, and light-conductive hole is corresponding with the light-emitting window of the first light source 10 to be arranged.Further, the first angle is less than 90 degree.The light that first light source 10 sends is penetrated by the light-conductive hole of the first light guide 20, by changing the angular relationship between the first light source 10 and the first light guide 20, the angular relationship of light-conductive hole and the first light source 10 can be changed, thus make by the direction of the light of light-conductive hole outgoing controlled.Similarly, by changing the first angle between the axis of light-conductive hole and the axis of tube-like piece, namely change light-conductive hole is arranged on the position on the first light guide 20, thus can change the shooting angle of the light of the first light source 10.Staff can be arranged on the angle in the first light guide 20 according to actual conditions determination light-conductive hole, thus makes the first light guide 20 can meet different operating demand.Preferably, the first light guide 20 is that metal material is made.
Preferably, the sidewall of light-conductive hole comprises the first light guiding surface and the second light guiding surface, is provided with the second angle between the first light guiding surface and the second light guiding surface.Because the sidewall of light-conductive hole is made up of the different light guiding surfaces intersecting setting, thus the light of the first light source 10 is through light-conductive hole, changes, thus change the shooting angle of the light of the first light source 10 according to the setting position of light guiding surface.Staff can arrange the light guiding surface of different angles as required in light-conductive hole, thus makes the beam projecting angle of light-emitting device have controllability.Preferably, the second angle is greater than 90 degree and is less than 180 degree.
Preferably, as shown in Figure 1, the number of the first light guide 20 is multiple, and multiple first light guide 20 is arranged in order setting.Owing to being provided with multiple first light guide 20, thus can changing the shooting angle of the light in certain length, and not change the shooting angle of the light of other positions, staff can need according to real work the use number determining the first light guide 20.
Preferably, the rising angle of at least two the first light guides 20 is different.When multiple first light guide 20 is installed in the light-emitting window place of the first light source 10, staff can according to the use needs of reality, the independent angular position relative regulating each first light guide 20 and the first light source 10, thus enable light-emitting device meet different instructions for uses, expand the scope of application of light-emitting device.
As second aspect of the present invention, provide a kind of imageing sensor.As shown in Figures 1 to 6, imageing sensor comprises light-passing board 30, lens 40, substrate 50, photographic department 60(such as: light sensitive integrated devices), mounting box 70 and the first light-emitting device, 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 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 the first light-emitting device, photographic department 60 is corresponding with lens 40 to be arranged.
When using the imageing sensor in the present invention, first image contribution is placed on light-passing board 30 towards imageing sensor, then the light that sends of the first light source 10 is after the first light guide 20, light path changes injection, light therethrough light-passing board 30 is radiated on image contribution, the light of the character area on image contribution is partially absorbed, and the light of white portion on image contribution is reflected (reflection, refraction, the factors such as scattering cause these reverberation to comprise the light of various angle), lens 40 are collected this reflection ray and are irradiated to photographic department 60, photographic department 60 is made up of many photosensitive areas and drive circuit, the light being irradiated to each photosensitive area can be carried out opto-electronic conversion by this drive circuit, and by signal output apparatus.After the light received converts the signal of telecommunication to, export (outwards exporting as image or Word message) through overdrive circuit, when image contribution constantly moves, image described on it or Word message will be read continuously.
In the example identifying the anti-fake mark that optical disclour printing ink is made, when the incident angle of light is different, spectral information after optical disclour printing ink reflection is also different, the signal of telecommunication after different spectral information conversions is also different, therefore through the design and color of movement images, the object identifying anti-fake mark can just be reached.
Again such as, when reading different anti-fake marks, the setting angle of the first light guide 20 also should be different.
Preferably, as shown in Figure 1, multiple first light guide 20 is one group, and light-emitting device comprises many groups the first light guide 20.Owing to being provided with many groups the first light guide 20, thus imageing sensor can identify the image contribution with many places anti-fake mark simultaneously, thus the dependability that improve recognition efficiency, alleviate the labour intensity of staff, improve imageing sensor.Preferably, the first light guide 20 and first light source 10 of different group setting angle can different also can be identical.Meanwhile, anti-counterfeit scanning can be carried out to image contribution in the position being provided with the first light guide 20, and normal scan is still carried out to image contribution in the position not arranging the first light guide 20.
Preferably, the first light guide 20 or clamping bonding with mounting box 70.Due to the first light guide 20 and mounting box 70 clamping, thus staff can change the setting angle of the first light guide 20 as required, improves the dependability of imageing sensor.Certainly, the first light guide 20 is bonding with mounting box 70 has stable connection, feature that dependability is high.
Preferably, as shown in Figures 3 to 6, imageing sensor also comprises the second light-emitting device 80, second light-emitting device 80 and comprises secondary light source 81, and the first light source 10 of secondary light source 81 and the first light-emitting device is separately positioned on the both sides of lens 40.Owing to being provided with the second light-emitting device 80, thus add the swept brilliance of imageing sensor, thus further increase the dependability of imageing sensor.
Preferably, the second light-emitting device 80 also comprises the second light guide 82, second light guide 82 adjustable angle and saves land and be arranged on the light-emitting window place (please refer to Fig. 3 to Fig. 6) of secondary light source 81.Owing to being provided with the second light guide 82, thus can carry out anti-counterfeit scanning to the anti-fake mark of image contribution diverse location simultaneously, particularly for same image contribution, there is multiple anti-fake mark, and this anti-fake mark needs the light of multiple different incidence angles degree to carry out situation about identifying.Staff can according to use needs, the number of the second light guide 82 is set, and determine the setting angle between the second light guide 82 and secondary light source 81, simultaneously by imageing sensor identification, thus operating efficiency can be improve to make the anti-fake mark of image contribution.
Preferably, the second light guide 82 and the first light guide 20 are symmetrical arranged along the length direction of lens 40 or are crisscross arranged.When the second light guide 82 and the first light guide 20 are symmetrical arranged along the length direction of lens 40, can irradiate respectively from two angles for the anti-fake mark of same place, thus carry out false proof discriminating.When the second light guide 82 and the first light guide 20 are crisscross arranged along the length direction of lens 40, can for the anti-fake mark do not existed together, irradiate respectively with two different incident angles, thus carry out false proof discriminating.Certainly, staff according to actual conditions, can also arrange the arrangement mode of the second light guide 82 and the first light guide 20, thus makes the imageing sensor in the present invention may be used for detecting different image contributions, and then expands the scope of application of imageing sensor.
Preferably, mounting box 70 inside is provided with the enclosed slot of the first light source 10 for holding the first light-emitting device, enclosed slot is provided with the light inlet window that relative light-passing board 30 is 45 degree.Further, the first light guide 20 is arranged on the inside of mounting box 70, and correspondingly with light inlet window arranges.
Certainly, mounting box 70 inside can also be provided with the groove of the first light source 10 for holding the first light-emitting device, and the angle between lamp guide and light-passing board 30 is 45 degree.First light source 10 emits beam through lamp guide and is radiated on light-passing board 30.First light guide 20 is arranged on the inside of mounting box 70, and correspondingly with lamp guide arranges.
Imageing sensor in 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 angular.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a light-emitting device, is characterized in that, comprising:
First light source (10);
First light guide (20), described first light guide (20) the adjustable angle light-emitting window being arranged on described first light source (10) that saves land sentences the rising angle changing described first light guide (20); Described first light guide (20), for having the tube-like piece of light-conductive hole, is provided with the first angle between the axis of described light-conductive hole and the axis of described tube-like piece, and described light-conductive hole is corresponding with the light-emitting window of described first light source (10) to be arranged.
2. light-emitting device according to claim 1, is characterized in that, the sidewall of described light-conductive hole comprises the first light guiding surface and the second light guiding surface, is provided with the second angle between described first light guiding surface and described second light guiding surface.
3. light-emitting device according to claim 1, is characterized in that, the number of described first light guide (20) is multiple, and multiple described first light guide (20) is arranged in order setting.
4. light-emitting device according to claim 3, is characterized in that, the rising angle of at least two described first light guides (20) is different.
5. an imageing sensor, comprise light-passing board (30), lens (40), substrate (50), photographic department (60), mounting box (70) and the 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 described substrate (50), it is characterized in that, described first light-emitting device is the light-emitting device according to any one of Claims 1-4, 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) is corresponding with described lens (40) to be arranged.
6. imageing sensor according to claim 5, it is characterized in that, described imageing sensor also comprises the 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).
7. imageing sensor according to claim 6, it is characterized in that, described second light-emitting device (80) also comprises the 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).
8. imageing sensor according to claim 7, is characterized in that, described second light guide (82) is symmetrical arranged with the length direction of described first light guide (20) along described lens (40) or is crisscross arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 CN103335279A (en) | 2013-10-02 |
| CN103335279B true CN103335279B (en) | 2015-12-02 |
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| CN201310279227.XA Active CN103335279B (en) | 2013-07-04 | 2013-07-04 | Light-emitting device and imageing sensor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| JP4706706B2 (en) * | 2008-01-31 | 2011-06-22 | 三菱電機株式会社 | Image sensor |
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