CN104065850A - Oblique light plate and contact-type image sensor possessing same - Google Patents
Oblique light plate and contact-type image sensor possessing same Download PDFInfo
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- CN104065850A CN104065850A CN201410310257.7A CN201410310257A CN104065850A CN 104065850 A CN104065850 A CN 104065850A CN 201410310257 A CN201410310257 A CN 201410310257A CN 104065850 A CN104065850 A CN 104065850A
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Abstract
The present invention provides an oblique light plate and a contact-type image sensor possessing the same. The oblique light plate comprises a first substrate, a second substrate and a light guide plate, the first and second substrates are arranged at intervals, and the light guide plate is arranged between the first and second substrates. The light guide plate comprises a plurality of baffles, and the plurality of baffles are arranged parallelly and mutually to form a light guide channel which extends along a plane of the baffles. By applying the technical scheme of the present invention, the interval between the two adjacent baffles is used to guide the propagation direction of light, thereby changing the direction of the detection light emitted by a light source.
Description
Technical field
The present invention relates to image detection field, more specifically, relate to a kind of skew ray plate and there is its contact-type image sensor.
Background technology
Along with the development of anti-counterfeiting technology, optical disclour printing ink and hologram image are widely used in false proof field, and their common feature is exactly, and along with the difference of the incident angle of light of extraneous light, the color reflecting or pattern will be different.Hence one can see that, wants to identify this anti-fake mark, must change the incident angle of light.
Fig. 1 is the sectional drawing of existing contact-type image sensor, this contact-type image sensor comprises illuminating source 1 ', lens 6 ', the photographic department 3 ' of light that receiver lens 6 ' converges is for being photosensitive integrated circuit, the sensor base plate 4 ' of the photosensitive integrated circuit that lift-launch is arranged in a straight line, holds the framework 2 ' of light source 1 ', lens 6 ' and sensor base plate 4 ', is arranged on the light-passing board 7 ' of the lift-launch original copy on framework 2 ', wherein, 8 ' is original copy to be detected.
In above-mentioned contact-type image sensor, it is upper that light-passing board 7 ' is fixed on framework 2 ', and the axis of the lens 6 ' in light-passing board 7 ' and framework 2 ' is vertical configuration.Light-passing board 7 ' be arranged in parallel with sensor base plate 4 '.Light source 1 ' be provided with two kinds, one is on framework 2 ', to be provided with the closed pockets that holds light source 1 ', closed pockets is provided with the light inlet window that relative light-passing board is 45 ° of left and right, the wide part that light source 1 ' sends sees through light inlet window, light-passing board 7 ' with about 45° angle, is irradiated on the original copy 8 ' of outside.Another kind is on framework 2 ', to be provided with the groove that holds light source 1 ', is provided with light source 1 ' in groove, and light source 1 ' is made up of light source and lamp guide, and lamp guide and light-passing board are 45 ° of left and right, and the light that light source sends through lamp guide sees through light-passing board 7 ' with about 45° angle.Be irradiated on the original copy 8 ' of outside, lens 6 ' are vertical configuration with light-passing board 7 ', as mentioned above, the wide part that light source 1 ' sends sees through light-passing board 7 ' with about 45° angle, be irradiated on the original copy 8 ' of outside, character area light on original copy 8 ' is partially absorbed, and be reflected at the light of original copy 8 ' other white portion, because reflection, refraction, the light that the factors such as scattering cause these reverberation to comprise various angles, these reverberation are through light-passing board 7 ', collected by lens 6 ', be irradiated to the photosensitive area of the photographic department 3 ' on sensor base plate 4 ', photographic department 3 ' is made up of many photosensitive areas and drive circuit, this drive circuit can carry out opto-electronic conversion by the light that is irradiated to each photosensitive area, and by the circuit of signal output.The light receiving is exported through overdrive circuit after converting the signal of telecommunication to, outwards exports as image (word) information, and original copy constantly moves, and image (word) information of recording on it will be read continuously.
In above-mentioned contact-type image sensor, there is following problem: the light that light source sends with and horizontal direction between angle be about 45 °, the angle vertical with lens and enter light-passing board 7 ', then be irradiated on original copy 8 ', original copy 8 ' is gone out these light reflections, reverberation enters lens 6 ', is pooled on photographic department 3 '.And the different anti-counterfeiting label summary of color shifting ink, hologram image is observed from different directions and obtained different colors or pattern, determine whether it is true or false with mirror by the output of more different colors or pattern.And existing contact-type image sensor cannot realize multi-angle and read, also just cannot differentiate the anti-fake mark that hologram image or color shifting ink are made.
Summary of the invention
The present invention aims to provide a kind of skew ray plate and has its contact-type image sensor, the detection direction of light of being sent to change light source.
To achieve these goals, the invention provides a kind of skew ray plate, skew ray plate comprises: first substrate; Second substrate, second substrate and first substrate interval arrange; Light guide plate is arranged between first substrate and second substrate, and light guide plate comprises multiple baffle plates, and multiple baffle plates arrange to form the guide lighting channel extending along the plane of baffle plate in parallel with each other.
Further, multiple baffle plates include first surface and the second surface relative with first surface, and first surface and/or second surface are reflecting surface.
Further, between two adjacent baffle plates, be provided with printing opacity filler.
Further, between the first surface of light guide plate and first substrate, be provided with the first adhesive linkage, between the second surface of light guide plate and second substrate, be provided with the second adhesive linkage.
Further, first substrate and second substrate arrange abreast, and baffle plate is perpendicular to first substrate.
Further, first substrate and second substrate arrange abreast, and baffle plate arranges obliquely with respect to first substrate.
A kind of contact-type image sensor is provided according to a further aspect in the invention, contact-type image sensor is for detection of the image information on original copy, contact-type image sensor comprises for the light source to original copy emission detection light, for converging the lens of detection light and the sensor devices of the detection light that induction lens converge of original copy reflection, contact-type image sensor also comprise be located on light source for changing the skew ray plate of the detection direction of light that light source launches, skew ray plate is above-mentioned skew ray plate.
Further, contact-type image sensor comprises multiple light sources, and each light source is the corresponding skew ray plate that is provided with all.
Further, multiple light sources comprise the first light source and secondary light source, and the first light source and secondary light source lay respectively at the both sides of lens.
Further, lens are the bearing of trend of strip and lens perpendicular to the primary optical axis of lens, all erect between first substrate and second substrate and all to tilt with respect to the bearing of trend of lens with multiple baffle plates of the light guide plate of the corresponding setting of the first light source.
Further, lens are the bearing of trend of strip and lens perpendicular to the primary optical axis of lens, with the bearing of trend of baffle plate of the light guide plate of the corresponding setting of secondary light source and the bearing of trend of lens is consistent and all with respect to the primary optical axis inclination of lens.
Further, contact-type image sensor also comprises: framework; Light-passing board, light-passing board is connected with framework and forms container cavity, and light source, lens and skew ray plate are all arranged in container cavity.
Apply technical scheme of the present invention, skew ray plate comprises first substrate, second substrate and light guide plate, second substrate and first substrate interval arrange, light guide plate is arranged between first substrate and second substrate, light guide plate comprises multiple baffle plates, and multiple baffle plates arrange to form the guide lighting channel extending along the plane of baffle plate in parallel with each other.Apply technical scheme of the present invention, the interval between two adjacent baffle plates is used for guiding the direction of propagation of light, thereby has changed the detection direction of light that light source sends.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the contact-type image sensor of prior art;
Fig. 2 shows the structural representation of skew ray plate of the present invention;
Fig. 3 shows the structural representation of the contact-type image sensor of first embodiment of the invention;
Fig. 4 shows the plan structure schematic diagram of the contact-type image sensor of first embodiment of the invention;
Fig. 5 shows the structural representation of the contact-type image sensor of second embodiment of the invention;
Fig. 6 shows the plan structure schematic diagram of the contact-type image sensor of second embodiment of the invention;
Fig. 7 shows the structural representation of the contact-type image sensor of third embodiment of the invention;
Fig. 8 shows the plan structure schematic diagram of the contact-type image sensor of third embodiment of the invention.
Reference numeral: 1, light source; 2, framework; 3, sensor base plate; 4, sensor devices; 5, skew ray plate; 51, first substrate; 52, second substrate; 53, light guide plate; 54, the first adhesive linkage; 55, the second adhesive linkage; 6, lens; 7, light-passing board; 8, original copy.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The first embodiment
As shown in Figure 2, the skew ray plate 5 of first embodiment of the invention comprises first substrate 51, second substrate 52 and light guide plate 53.Second substrate 52 arranges with first substrate 51 intervals.Light guide plate 53 is arranged between first substrate 51 and second substrate 52, and light guide plate 53 comprises multiple baffle plates, and multiple baffle plates arrange to form the guide lighting channel extending along the plane of baffle plate in parallel with each other.
Baffle plate arranges obliquely with respect to first substrate.Angle between baffle plate and first substrate 51 is α, 0 °≤α≤90 °.
In the present embodiment, two adjacent baffle interval settings, the interval between adjacent two baffle plates forms the guide lighting channel passing through for light.The light consistent with guide lighting channel bearing of trend that enters light guide plate can pass through in guide lighting channel.And with the inconsistent light of guide lighting channel direction, penetrated by guide lighting channel by the light consistent with guide lighting channel bearing of trend after baffle plate reflection, by baffle plate reflection afterwards and the inconsistent light of guide lighting channel bearing of trend cannot be penetrated by guide lighting channel.In the present embodiment, not only utilize guide lighting channel to change the direction of propagation of incident ray, and can make to there is good directive property by the light penetrating in skew ray plate 5.
Multiple baffle plates include first surface and the second surface relative with first surface, and first surface and/or second surface are reflecting surface.
Baffle plate is to be made by the good opaque thin plate of reflecting effect.The reflecting surface of baffle plate can change the direction of propagation of inciding the light in skew ray plate effectively, has reduced the probability that incident ray is absorbed by baffle plate, has improved the amount of the light being penetrated by skew ray plate.
Between two adjacent baffle plates, be provided with printing opacity filler.Filler is to be filled and formed by semisolid, the good material of light transmission, plays the effect of support.The transparent filler being arranged between adjacent baffle plate can play effect fixing, supporting baffle effectively, has improved the intensity of skew ray plate.
Between the first surface of light guide plate 53 and first substrate 51, be provided with the first adhesive linkage 54, between the second surface of light guide plate 53 and second substrate 52, be provided with the second adhesive linkage 55.The first adhesive linkage 54 and the second adhesive linkage 55 are the transparent material that can pass for light.
Can be by preferably, first substrate 51 arranges abreast with second substrate 52, and baffle plate is perpendicular to first substrate 51.This skew ray plate can change by first substrate or second substrate incident light to the light in skew ray plate the direction of propagation in the plane parallel with first substrate.
Can also be preferably, first substrate 51 arranges abreast with second substrate 52, and baffle plate arranges obliquely with respect to first substrate 51.This skew ray plate can change by first substrate or second substrate incident light to the light in skew ray plate the direction of propagation in the plane perpendicular to first substrate
As shown in Figure 3 and Figure 4, in the present embodiment, also provide a kind of touch imageing sensor.Contact-type image sensor is for detection of the image information on original copy 8, contact-type image sensor comprises for the light source 1 to original copy emission detection light, for converging the lens 6 of detection light and the sensor devices 4 of the detection light that induction lens 6 converge of original copy reflection, contact-type image sensor also comprise be located on light source 1 for changing the skew ray plate 5 of the detection direction of light that light source 1 launches, the skew ray plate that skew ray plate 5 is above-mentioned.
Contact-type image sensor also comprises framework 2 and light-passing board 7.Light-passing board 7 is connected with framework 2 and forms container cavity, and light source 1, lens 6 and skew ray plate 5 are all arranged in container cavity.
This contact-type image sensor comprises light source 1, changes skew ray plate 5, the lens 6 of the light angle of light source 1, the sensor devices 4 of receiver lens 6 light that converges, photosensitive integrated circuit, carry the photosensitive integrated circuit being arranged in a straight line sensor base plate 3, hold lens 6 and sensor base plate 3 framework 2, be arranged on framework 2 tops and for carrying the light-passing board 7 of original copy 8.
The angle design that skew ray plate can read according to color shifting ink, hologram image goes out installation site, the setting angle of skew ray plate, is fixed on light source in single mode, reads specially for a kind of anti-counterfeiting mark.Also can two or more skew ray plates be set with respect to light source, each skew ray plate that rising angle is identical is fixed in framework with different special angles, or each skew ray plate of identical setting angle has different design rising angles, reads the needs of the anti-counterfeiting mark such as color shifting ink, hologram image to meet multiple angles.
In the present embodiment, contact-type image sensor comprises multiple light sources 1, and each light source 1 is the corresponding skew ray plate 5 that is provided with all.Multiple light sources 1 comprise the first light source and secondary light source, and the first light source and secondary light source lay respectively at the both sides of lens 6.
On the first light source, be provided with skew ray plate.Lens 6 are the bearing of trend of strip and lens 6 perpendicular to the primary optical axis of lens 6, all erect between first substrate 51 and second substrate 52 and all to tilt with respect to the bearing of trend of lens 6 with multiple baffle plates of the light guide plate 53 of the corresponding setting of the first light source.
Contact-type image sensor has increased skew ray plate 5, the light that light source 1 sends enters after skew ray plate 5, by skew ray plate changed light that light source 1 sends with the direction being parallel in first substrate 51 planes, be irradiated on original copy 8 with the incidence angle of special angle.Different skew ray plates, or identical skew ray plate adopts different setting angles, will obtain the angle of the light on different directive original copys 8, and the spectral information after these light are reflected by anti-fake mark is just different.The signal of telecommunication that different spectral informations is changed out is also different, through relatively, just can reach the object of distinguishing true from false.Meanwhile, can not affect normal scanning yet.The feature of this skew ray plate is: the incident angle that changes light in the direction that is parallel to lens.
The second embodiment
As shown in Figure 5 and Figure 6, in the present embodiment, also provide a kind of touch imageing sensor.Contact-type image sensor is for detection of the image information on original copy 8, contact-type image sensor comprises for the light source 1 to original copy emission detection light, for converging the lens 6 of detection light and the sensor devices 4 of the detection light that induction lens 6 converge of original copy reflection, contact-type image sensor also comprise be located on light source 1 for changing the skew ray plate 5 of the detection direction of light that light source 1 launches, the skew ray plate that skew ray plate 5 is above-mentioned.
Contact-type image sensor also comprises framework 2 and light-passing board 7.Light-passing board 7 is connected with framework 2 and forms container cavity, and light source 1, lens 6 and skew ray plate 5 are all arranged in container cavity.
In the present embodiment, contact-type image sensor comprises multiple light sources 1, and each light source 1 is the corresponding skew ray plate 5 that is provided with all.Multiple light sources 1 comprise the first light source and secondary light source, and the first light source and secondary light source lay respectively at the both sides of lens 6.
On the first light source, be provided with skew ray plate.Lens 6 are the bearing of trend of strip and lens 6 perpendicular to the primary optical axis of lens 6, with the bearing of trend of baffle plate of the light guide plate 53 of the corresponding setting of the first light source and the bearing of trend of lens 6 is consistent and all with respect to the primary optical axis inclination of lens 6.
The light that light source 1 sends enters after skew ray plate 5, by skew ray plate changed light that light source 1 sends in the direction perpendicular in first substrate 51 planes, be irradiated on original copy 8 with the incidence angle of special angle.Different skew ray plates, or identical skew ray plate adopts different setting angles, will obtain the angle of the light on different directive original copys 8, and the spectral information after these light are reflected by anti-fake mark is just different.The signal of telecommunication that different spectral informations is changed out is also different, through relatively, just can reach the object of distinguishing true from false.Meanwhile, can not affect normal scanning yet.The feature of this skew ray plate is: the incident angle that changes light in the direction that is parallel to lens.
The 3rd embodiment
As shown in Figure 7 and Figure 8, in the present embodiment, also provide a kind of touch imageing sensor.Contact-type image sensor is for detection of the image information on original copy 8, contact-type image sensor comprises for the light source 1 to original copy emission detection light, for converging the lens 6 of detection light and the sensor devices 4 of the detection light that induction lens 6 converge of original copy reflection, contact-type image sensor also comprise be located on light source 1 for changing the skew ray plate 5 of the detection direction of light that light source 1 launches, the skew ray plate that skew ray plate 5 is above-mentioned.
Contact-type image sensor also comprises framework 2 and light-passing board 7.Light-passing board 7 is connected with framework 2 and forms container cavity, and light source 1, lens 6 and skew ray plate 5 are all arranged in container cavity.
On the first light source, be provided with the first skew ray plate.Lens 6 are the bearing of trend of strip and lens 6 perpendicular to the primary optical axis of lens 6, and multiple baffle plates that light guide plate 53 be set corresponding with the first light source all erect between first substrate 51 and second substrate 52 and all to tilt with respect to the bearing of trend of lens 6.
Contact-type image sensor has increased skew ray plate 5, the light that light source 1 sends enters after skew ray plate 5, by skew ray plate changed light that light source 1 sends with the direction being parallel in first substrate 51 planes, be irradiated on original copy 8 with the incidence angle of special angle.
On secondary light source, be provided with the second skew ray plate.Lens 6 are the bearing of trend of strip and lens 6 perpendicular to the primary optical axis of lens 6, with the bearing of trend of baffle plate of the light guide plate 53 of the corresponding setting of secondary light source and the bearing of trend of lens 6 is consistent and all with respect to the primary optical axis inclination of lens 6.
The light that light source 1 sends enters after skew ray plate 5, by skew ray plate changed light that light source 1 sends in the direction perpendicular in first substrate 51 planes, be irradiated on original copy 8 with the incidence angle of special angle.
These are 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 of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a skew ray plate, is characterized in that, described skew ray plate (5) comprising:
First substrate (51);
Second substrate (52), described second substrate (52) arranges with described first substrate (51) interval;
Light guide plate (53), described light guide plate (53) is arranged between described first substrate (51) and described second substrate (52), described light guide plate (53) comprises multiple baffle plates, and described multiple baffle plates arrange to form the guide lighting channel extending along the plane of described baffle plate in parallel with each other.
2. skew ray plate according to claim 1, is characterized in that, described multiple baffle plates include first surface and the second surface relative with described first surface, and described first surface and/or described second surface are reflecting surface.
3. skew ray plate according to claim 1, is characterized in that, between two adjacent described baffle plates, is provided with printing opacity filler.
4. skew ray plate according to claim 1, it is characterized in that, between the first surface of described light guide plate (53) and described first substrate (51), be provided with the first adhesive linkage (54), between the second surface of described light guide plate (53) and described second substrate (52), be provided with the second adhesive linkage (55).
5. skew ray plate according to claim 1, is characterized in that, described first substrate (51) arranges abreast with described second substrate (52), and described baffle plate is perpendicular to described first substrate (51).
6. skew ray plate according to claim 1, is characterized in that, described first substrate (51) arranges abreast with described second substrate (52), and described baffle plate arranges obliquely with respect to described first substrate (51).
7. a contact-type image sensor, described contact-type image sensor is for detection of the image information on original copy (8), described contact-type image sensor comprises for the light source (1) to described original copy (8) emission detection light, for converging the lens (6) of described detection light and the sensor devices (4) of the described detection light that the described lens of induction (6) converge of described original copy reflection, it is characterized in that, described contact-type image sensor also comprise be located on described light source (1) for changing the skew ray plate (5) of the described detection direction of light that described light source (1) launches, described skew ray plate (5) is the skew ray plate described in any one in claim 1 to 6.
8. contact-type image sensor according to claim 7, is characterized in that, described contact-type image sensor comprises multiple described light sources (1), and each described light source (1) is the corresponding skew ray plate (5) that is provided with all.
9. contact-type image sensor according to claim 8, is characterized in that, described multiple light sources (1) comprise the first light source and secondary light source, and described the first light source and described secondary light source lay respectively at the both sides of described lens (6).
10. contact-type image sensor according to claim 9, it is characterized in that, described lens (6) are the bearing of trend of strip and described lens (6) perpendicular to the primary optical axis of described lens (6), all erect between described first substrate (51) and described second substrate (52) and all to tilt with respect to the bearing of trend of described lens (6) with described multiple baffle plates of the described light guide plate (53) of the corresponding setting of described the first light source.
11. contact-type image sensors according to claim 9, it is characterized in that, described lens (6) are the bearing of trend of strip and described lens (6) perpendicular to the primary optical axis of described lens (6), unanimously and all tilt with respect to the primary optical axis of described lens (6) with the bearing of trend of described baffle plate and the bearing of trend of described lens (6) of the described light guide plate (53) of the corresponding setting of described secondary light source.
12. according to the contact-type image sensor described in any one in claim 7 to 11, it is characterized in that, described contact-type image sensor also comprises:
Framework (2);
Light-passing board (7), described light-passing board (7) is connected with described framework (2) and forms container cavity, and described light source (1), described lens (6) and described skew ray plate (5) are all arranged in described container cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310257.7A CN104065850A (en) | 2014-07-01 | 2014-07-01 | Oblique light plate and contact-type image sensor possessing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310257.7A CN104065850A (en) | 2014-07-01 | 2014-07-01 | Oblique light plate and contact-type image sensor possessing same |
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| CN104065850A true CN104065850A (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410310257.7A Pending CN104065850A (en) | 2014-07-01 | 2014-07-01 | Oblique light plate and contact-type image sensor possessing same |
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Cited By (1)
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