CN203688831U - Lens array device and image reading system employing same - Google Patents
Lens array device and image reading system employing same Download PDFInfo
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- CN203688831U CN203688831U CN201320822169.6U CN201320822169U CN203688831U CN 203688831 U CN203688831 U CN 203688831U CN 201320822169 U CN201320822169 U CN 201320822169U CN 203688831 U CN203688831 U CN 203688831U
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Abstract
The utility model provides a lens array device and an image reading system employing same. The lens array device comprises a first rod-shaped lens array, of which all rod-shaped lens center lines are located on a first plane, a second rod-shaped lens array, of which all rod-shaped lens center lines are located on a second plane and which is oppositely arranged with the first rod-shaped lens array, and a bracing frame, where the first rod-shaped lens array and the second rod-shaped lens array are fixedly arranged. The included angle between the first plane and the second plane is theta. The lens array device is capable of identifying different convex and concave pages to achieve the purpose of imaging an original copy with convex and concave pages. An image with convex and concave pages is formed for the original copy with convex and concave pages.
Description
Technical field
The utility model relates to lens imaging field, in particular to a kind of lens array device and have its image read system.
Background technology
Conventionally, as image-reading devices such as scanner, double focusing all-in-ones, in these equipment, all comprise a kind of image read system, the pattern-information on original copy is transformed into telecommunications breath by image read system, and the telecommunications breath then dress having been changed is saved in the internal memory of equipment or is saved in computer.This image read system mainly comprises light source, lens array device and photoelectric conversion sensor.Wherein, lens array device plays focal imaging, and lens array device has determined the performance height of image read system to a great extent.
As shown in Figure 1, Fig. 1 is the partial structurtes schematic diagram of the lens array device that uses in image read system in prior art.This lens array device comprises: rod type lens array 1 ', have the first side plate 2 of supporting role ', have the second side plate 3 of supporting role ', monomer rod-shaped lens 11 ', monomer rod-shaped lens 11 ' be arranged in a straight line and the lens list array 10 that forms ', lens list array 10 ' be clipped in the first side plate 2 ' and the second side plate 3 ' between, and by adhesives 4 ' be adhesively fixed.
The common labour length of lens is TC ', is highly Z ', and the height of focal position is H '.The both sides up and down of lens array device are symmetrical, and the plane of focus corresponds respectively to object plane and picture plane.Using when lens array device, original copy is positioned over object plane 5 ' upper, photoelectric conversion sensor be positioned over picture plane 6 ' on.
It is improved on this basis also having some technology, improvement is that the lens list array 10 of lens array device inside ' be improved to is arranged in parallel into the two arrays of double lens, its objective is and improve the transmittance of whole lens array device, but the direction of its imaging and object plane and be identical as planimetric map.
As shown in Figure 2, Fig. 2 is the simplified schematic diagram of image read system of the prior art.Image read system comprise can send the line lighting source 21 of light uniform irradiation original copy ', original copy reflected light is converged and carries out to the lens array device of imaging, the light being arranged in a straight line, converge for receiver lens array apparatus and by light signal convert to the photoelectric conversion sensor 22 of electric signal ', photoelectric conversion sensor 22 that lift-launch is arranged in a straight line ' substrate 23 ', hold light source 21 ', lens array device and substrate 23 ' framework 24 ', be arranged on framework 24 ' on for place the light-passing board 25 of original copy ' and original copy 26 '.
In image read system, in the object plane of original copy 26 ' be placed in lens array device (normally light-passing board 25 ' near surface), photoelectric conversion sensor 22 ' be arranged in the picture plane of lens array device, photoelectric conversion sensor 22 ' by many photosensitive pixels and can carry out opto-electronic conversion and the driving circuit of signal output is formed being irradiated to light on each photosensitive pixel.Its imaging process is: the light of light source 21 ' send, see through light-passing board 25 ', be irradiated to outside original copy 26 ' on, original copy 26 ' on the light of word black region be absorbed, and original copy 26 ' white undercolor region, light almost 100% is reflected, these reflected light again through light-passing board 25 ' after, collected by lens array device, then image in substrate 23 ' on photoelectric conversion sensor 22 ' on, the opto-electronic conversion inductor 22 ' light signal of reception is converted to after telecommunications, through overdrive circuit output, outwards exports as image (word) information.Original copy 26 ' constantly move, the image of recording on it (word) information will be read continuously.
There is following problem in lens array device of the prior art and image read system: the reflected light of original copy, within the scope that can receive at lens, can enter lens arra, and converge to picture plane, then convert electric signal to by photoelectric conversion sensor.That is to say, lens array device cannot be distinguished the catoptrical direction of original copy.Therefore, the electric signal that equipment finally obtains, receive exactly the signal that forms of directive light.In this case, for those have the convex-concave space of a whole page concerning the discrepant original copy of reflective direction, just can only carry out simple, reading of relying on plane picture that color distinguishes, and cannot carry out reading and identifying of the convex-concave space of a whole page.For example, the partial pattern of bank note or some securities or number have the convex-concave space of a whole page, and existing image read system can only rely on color to read its plane picture feature, and cannot read its convex-concave characteristics of image.If run into that plane pattern is basic identical and without the counterfeit of the convex-concave space of a whole page, conventional images reading system just cannot carry out convex-concave differentiation, also just cannot distinguish the true and false of original copy.In addition, the coin of existing circulation all has the pattern of the single metallochrome of the convex-concave space of a whole page, and existing image read system not only cannot read its convex-concave pattern feature, and because the color of the pattern on coin and background color is identical, so its plane characteristic also cannot be distinguished.Therefore,, in the time that the color of the convex-concave page image of original copy and background color are same solid color, conventional images reading system primary image feature also cannot effectively be distinguished.
Utility model content
The utility model aims to provide a kind of lens array device and has its image read system, cannot be according to the catoptrical intensity imaging of the original copy convex-concave space of a whole page as having the technical matters of convex-concave page image to solve lens array device in prior art.
To achieve these goals, according to an aspect of the present utility model, provide a kind of lens array device, having comprised: the first rod type lens array, the center line of each rod-shaped lens of the first rod type lens array is all positioned in the first plane; The second rod type lens array, the center line of each rod-shaped lens of the second rod type lens array is all positioned in the second plane, and the second rod type lens array and the first rod type lens array are oppositely arranged; Bracing frame, the first rod type lens array and the second rod type lens array are fixedly installed on bracing frame; Angle between the first plane and the second plane is θ.
Further, angle theta is less than or equal to the incident angle of the radiating light that the rod-shaped lens of lens arra receives.
Further, the first end butt correspondingly of the corresponding rod-shaped lens of the first rod type lens array and the second rod type lens array, the first rod type lens array is diverged mutually with the second end of each rod-shaped lens of the second rod type lens array.
Further, the first rod type lens array is focused in same point with the focus of the first end of two rod-shaped lens corresponding in the second rod type lens array, and the lower end focus of the lower end focus of the each rod-shaped lens of the first rod type lens array and the each rod-shaped lens of the second rod type lens array is in same level.
Further, the first rod type lens array and the second rod type lens array are symmetrical arranged with respect to a perpendicular.
Further, bracing frame comprises the first support member and the second support member that are oppositely arranged, the first support member vertically arranges, the first support member and the second support member are oppositely arranged, the first rod type lens array is parallel to the first support member, and the second rod type lens array is obliquely installed with respect to the first rod type lens array.
According on the other hand of the present utility model, a kind of image read system is provided, comprising: framework; Said lens array apparatus, lens array device is fixedly installed in framework; Photoelectric conversion sensor, is arranged at the position of the lens focus of lens array device the second end, for converted image electric signal.
Further, photoelectric conversion sensor comprises: multiple the first photoelectric sensors, the lower end focus corresponding setting one by one of multiple the first photoelectric sensors and each rod-shaped lens of the first rod type lens array; Multiple the second photoelectric sensors, the lower end focus corresponding setting one by one of multiple the second photoelectric sensors and each rod-shaped lens of the second rod type lens array.
Further, image read system also comprises substrate, and substrate is arranged on the bottom of framework, and photoelectric conversion sensor is arranged on substrate.
Further, image read system also comprises: light source, be arranged on a side of lens array device, and near the first end of lens array device; For placing the light-passing board of original copy, be fixedly installed on the top of framework, light-passing board covers the top of lens array device and light source.
Further, photoelectric conversion sensor comprises photosensitive pixel piece, photosensitive pixel piece can will change light signal and convert electric signal to, and multiple photosensitive pixel pieces are separately positioned in photoelectric conversion sensor, and are arranged on the lower focus position of each rod-shaped lens of lens array device.
Further, image read system also comprises signal processing circuit, and the image optoelectronic information of the original copy of image to be read is processed backward outer output through signal processing circuit
Application the technical solution of the utility model, this lens array device comprises the first rod type lens array, the second rod type lens array, bracing frame.The center line of each rod-shaped lens of the first rod type lens array is all positioned in the first plane; The center line of each rod-shaped lens of the second rod type lens array is all positioned in the second plane, and the second rod type lens array and the first rod type lens array are oppositely arranged; The first rod type lens array and the second rod type lens array are fixedly installed on bracing frame; Angle between the first plane and the second plane is θ.The material of common original copy to reflection of light without characteristic, astaticism, the reflected light that is to say original copy belongs to diffuse light substantially, if original copy is plane original copy, diffuse enter the light intensity of two row rod type lens arrays can be basic identical, if there is the convex-concave space of a whole page on original copy, because the normal direction that the diverse location of the convex-concave space of a whole page is corresponding is different, therefore catoptrical intensity also can change along with the variation of direction; Apply this lens array device, the first rod type lens array and the second rod type lens array separately plane at place have angle, after being provided with angle between the first rod type lens array and the second rod type lens array, the first rod type lens array and the second rod type lens array can receive the reflected light of the difference power reflecting; In the time that the normal diffusing of the convex-concave space of a whole page of original copy is close with the axis of the first rod type lens array, the reflected light that enters into the first rod type lens array is just better than the reflected light that enters into the second rod type lens array, different from power by perception reflex direction of light, just can identify the different convex-concave spaces of a whole page, thereby realize, the original copy with the convex-concave space of a whole page is carried out to imaging, the original copy with the convex-concave space of a whole page is imaged as to the image with the convex-concave space of a whole page.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the broken section structural representation of rod type lens array of the prior art;
Fig. 2 shows the structural representation of image read system of the prior art;
Fig. 3 shows the cross section structure schematic diagram of the embodiment of lens array device of the present utility model;
Fig. 4 shows the perspective view of the embodiment of lens array device of the present utility model;
Fig. 5 shows the cross section simplified schematic diagram of another embodiment of lens array device of the present utility model;
Fig. 6 shows the structural representation of the image read system of the embodiment of application lens array device of the present utility model;
Fig. 7 shows the principle simplified schematic diagram of the reception signal that reads the original copy with the convex-concave space of a whole page of the embodiment of image read system of the present utility model;
Fig. 8 shows first embodiment of signal processing circuit of image read system of the present utility model at the structure principle chart reading in original copy direction; And
Fig. 9 shows second embodiment of signal processing circuit of image read system of the present utility model at the structure principle chart reading in original copy direction.
Reference numeral:
10a, the first rod type lens array; 10b, the second rod type lens array; 11, the first support member; 12, the second support member; 13, original copy; 131, the convex-concave space of a whole page; 21, photoelectric conversion sensor; 21a, the first photoelectric sensor; 21b, the second photoelectric sensor; 211, photosensitive pixel piece; 22, substrate; 23, framework; 24, light source; 25, light-passing board; 26, signal processing circuit; 26a, first signal outlet line; 26b, secondary signal outlet line; 30, lens array device.
Embodiment
Hereinafter also describe the utility model in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
As shown in Figure 3, according to embodiment of the present utility model, lens array device comprises the first rod type lens array 10a, the second rod type lens array 10b, bracing frame.The center line of each lens of the first rod type lens array 10a is all positioned in the first plane; The center line of each lens of the second rod type lens array 10b is all positioned in the second plane, and the second rod type lens array 10b and the first rod type lens array 10a are oppositely arranged; The first rod type lens array 10a and the second rod type lens array 10b are fixedly installed on bracing frame; The first rod type lens array 10a and the second rod type lens array 10b are used for the reflected light of the original copy 13 that converges image to be read and carry out imaging; Angle between the first plane and the second plane is θ.
Apply this lens array device, in conjunction with shown in Figure 6, the first rod type lens array 10a and the second rod type lens array 10b separately plane at place have angle theta, after being provided with angle theta between the first rod type lens array 10a and the second rod type lens array 10b, the first rod type lens array 10a and the second rod type lens array 10b can receive the reflected light of the difference power reflecting; In the time that the normal diffusing of the convex-concave space of a whole page 131 of original copy 13 is close with the axis of the first rod type lens array 10a, the reflected light that enters into the first rod type lens array 10a is just better than the reflected light that enters into the second rod type lens array 10b, different from power by perception reflex direction of light, just can identify the different convex-concave spaces of a whole page 131, thereby realize, the original copy 13 with the convex-concave space of a whole page 131 is carried out to imaging, the original copy 13 with the convex-concave space of a whole page is imaged as to the image with the convex-concave space of a whole page 131.
Particularly, the catoptrical incident angle of carrying out original copy 13 of lens array device is less than or equal to 12 degree, and the angle theta that the first rod type lens array 10a becomes with the second rod type lens array 10b is to set according to the size of the incident angle of light, therefore, the size of angle theta is less than or equal to incident angle.
Preferably, the diameter of the first rod type lens array 10a and the second rod type lens array 10b is 0.35mm, and the interval between the axle center of two rod-shaped lens lower ends is also 0.35mm, and the size of angle theta equals 5 degree.The formation angle theta of the first rod type lens array 10a and the second rod type lens array 10b.In the present embodiment, the second end of each rod type lens array of the first rod type lens array 10a and the second rod type lens array 10b be each other away from, and the first rod type lens array 10a and the first end of the corresponding rod-shaped lens of the second rod type lens array 10b are corresponding (each rod-shaped lens of each rod-shaped lens of the first rod type lens array 10a and the second rod type lens array 10b are oppositely arranged correspondingly) together with being mutually connected to one by one.
Especially, each rod-shaped lens of the first rod-shaped lens 10a and the each rod-shaped lens of the second rod type lens array 10b can also stagger one by one (as shown in Figure 4) is set, but the upper end focus that must ensure each rod-shaped lens of the first rod type lens array 10a and the second rod type lens array 10b converges in same perpendicular, all upper ends focus of lens array device is in identical height, and is arranged in order in alignment; And to ensure that the lower end focus of each rod-shaped lens of the first rod type lens array 10a and the lower end focus of the each rod-shaped lens of the second rod type lens array 10b are in same level.
In conjunction with shown in Figure 4, in the present embodiment, bracing frame comprises the first support member 11 and the second support member 12; The first support member 11 is the first side plate, and the second support member 12 is the second side plate, and the first rod type lens array 10a is fixed on the first side plate by resin bonding, and the second rod type lens array 10b is fixed on the second side plate by resin bonding.Because the first rod type lens array 10a and the first end of the corresponding rod-shaped lens of the second rod type lens array 10b are corresponding butts one by one, the size of suitably adjusting angle theta, easily makes the first rod type lens array 10a overlap on one point with the upper focus of each corresponding rod-shaped lens of the second rod type lens array 10b; The lower focus of each rod-shaped lens is owing to existing angle theta to be separated from each other between the first rod type lens array 10a and the second rod type lens array 10b, and its distance is D.
Particularly, in the first rod type lens array 10a and the second rod type lens array 10 focus of corresponding two rod-shaped lens in same point; The lower end focus of the lower end focus of the each rod-shaped lens of the first rod type lens array 10a and the each rod-shaped lens of the second rod type lens array 10b is in same level.The first rod type lens array 10a and the second rod type lens array 10b are symmetrical arranged with respect to a perpendicular.
Again in conjunction with shown in Figure 3, make as a whole lens array device, it uses as a servant length is altogether TC, be highly Z, the focus front, top (be object plane, focus height is H) that the top focus that the first rod type lens array 10a and the second rod type lens array 10b overlap is whole array structure thereof; Although the bottom focus of the second bar-shaped array structure thereof 10a and the second rod type lens array 10b is laterally separated certain distance D, but two focuses still have identical height in the vertical, the lower focus of each rod-shaped lens has formed the lower focal plane (as plane, the height of focus is also H) of whole lens array device jointly.
Rod-shaped lens height Z is 4.3mm, and focus height H is 2.4mm, and therefore the distance B of two of whole lens array device lower focuses is 0.9mm.The first rod type lens array 10a and the second rod type lens array 10b angle theta each other increases, although can make the increase of the difference that enters two light signals in lens arra, but increasing, angle also have the width that also can make lens itself to increase, show reflection of light increase etc. unfavorable factor above, there is certain angular range (being the angle of light of lens) the lens reception light time itself, therefore, the angle theta between two row lens arras can not exceed the incident angle (the angle of light degree of the simple lens array using in the present embodiment is 12 degree) of the light of lens itself.
Lens array device is a kind of self-focusing type lens arra, and the structure of rod-shaped lens is strip structure, and length is conventionally suitable with the sweep amplitude of image read system.
Especially, in conjunction with shown in Figure 5, the utility model provides another lens array device.The first rod type lens array 10a of this lens array device is vertically arranged between the first support member 11 and the second support member 12, and the second rod type lens array 10b is obliquely installed with respect to the first rod type lens array 10a.The suitable adjustment of the angle theta size that process tilts to form with respect to the first rod type lens array 10a to the second rod type lens array 10b, the upper end focus of the corresponding rod type lens array of the first rod type lens array 10a and the second rod type lens array 10b is converged in same point, similarly, the lower end focus of each rod-shaped lens of the first rod type lens array 10a and the second rod type lens array 10b is in same level.In addition, Ha and Hb are respectively the first rod type lens array 10a and the corresponding focus of the second rod type lens array 10b; And Ha and Hb can be identical, also can be different.Test shows, when Ha and Hb are slightly variant, in original copy 13, have the convex-concave space of a whole page image to read effect more obvious.
As shown in Figure 6, apply the image read system of the lens array device of embodiment of the present utility model, this image read system comprises the lens array device 30 of framework 23 and above-described embodiment of the present utility model; Image read system also comprises photoelectric conversion sensor 21, and photoelectric conversion sensor 21 is for converted image electric signal, and photoelectric conversion sensor 21 is arranged on the position of the lens focus of the second end of lens array device.In the present embodiment, photoelectric conversion sensor 21 comprises the first photoelectric sensor 21a and the second photoelectric sensor 21b, the first photoelectric sensor 21a and the second photoelectric sensor 21b are multiple, and each the first photoelectric sensor 21a is corresponding one by one with the lower end focus of each rod-shaped lens of the first rod type lens array 10a; Each the second photoelectric sensor 21b is corresponding one by one with the lower end focus of each rod-shaped lens of the second rod type lens array 10b.Each photoelectric sensor is corresponding one by one with the lower focus of each rod-shaped lens, can receive better like this light signal of the characteristics of image that the transmission from different directions of each lens converges, and reads better the graphic feature of original copy 13.
Particularly, image read system also comprises the substrate 22 for sensor installation, and substrate 22 is arranged on the bottom of framework 23, and photoelectric conversion sensor 21 is arranged on substrate 22.
More specifically, image read system also comprises light source 24 and light-passing board 25.Light source 24 is arranged on a side of lens array device, and the first end of close lens array device.Light source 24 is luminous points for the end in light conductor, then by light conductor, light is imported on the original copy 13 on whole length direction.Chamfering printing opacity mouth has been offered on the top of one side of the close lens array device of light conductor, the light sending from light source 24 is through the processing of light conductor, then light penetrates from chamfering printing opacity mouth, finally be irradiated on original copy 13, preferably, the light irradiation on original copy 13 overlaps with the upper focus of lens array device.Light-passing board 25 is fixedly installed on the top of framework 23, and light-passing board 25 hides above lens array device and light source 24, and the original copy 13 of image to be read is placed on the top of light-passing board 25.
Again in conjunction with shown in Figure 6, what light source 24 can uniform irradiation original copy 13 is read region; The below of lens array device is the two row photoelectric conversion sensors 21 that are arranged in a straight line, be arranged at respectively the each lower focal position of the first rod type lens array 10a and the second rod type lens array 10b of lens array device, the light signal that photoelectric conversion sensor 21 converges for receiving the first rod type lens array 10a and the second rod type lens array 10b; Framework holds the parts such as light source 24, lens array device, substrate 22.
In conjunction with shown in Figure 8, in the first embodiment of image read system of the present utility model, particularly, photoelectric conversion sensor 21 comprises photosensitive pixel piece 211, photosensitive pixel piece 211 can transmitting photo-signal be electric signal, multiple photosensitive pixel pieces 211 are separately positioned in photoelectric conversion sensor 21, and are arranged on the lower focal position of each lens of lens array device.
More specifically, image read system also comprises signal processing circuit 26, and the image optoelectronic information of the original copy 13 of image to be read is processed backward outer output through signal processing circuit 26.
The light that light source 24 sends, through after light-passing board 25, is irradiated on original copy 13, and the reflected light of original copy 13 is collected by lens array device through light-passing board 25 again.Owing to being provided with the first rod type lens array 10a and the second rod type lens array 10b of different directions in lens array device, therefore, the reflected light of original copy 13 is collected by the first rod type lens array 10a and the second rod type lens array 10b by the difference of reflection direction respectively, and converge at respectively separately on corresponding photoelectric conversion sensor 21, convert respectively electric signal to by photoelectric conversion sensor 21, then process backward outer output image signal by signal processing circuit 26.
In conjunction with shown in Figure 9, in the second embodiment of image read system of the present utility model, the output signal of image read system is the variance signal that photoelectric conversion sensor 21 is exported, and this variance signal is the imbody of the convex-concave page image to original copy 13.In the structure of the present embodiment, except retaining the output signal of function of the first embodiment (being the outlet line of first signal shown in Fig. 9 26a).The second embodiment has also increased secondary signal outlet line 26b, this signal is the direct output signal by photoelectric conversion sensor 21, it is the embodiment of the planed signal to original copy 13, that is to say in this structure, can outwards export the picture signal of the picture signal of the convex-concave space of a whole page 131 that embodies original copy 13 and the plane characteristic of embodiment original copy 13 simultaneously.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
1, lens array device of the present utility model, can identify the different convex-concave spaces of a whole page, thereby realize, the original copy with the convex-concave space of a whole page is carried out to imaging, the original copy with the convex-concave space of a whole page is imaged as to the image with the convex-concave space of a whole page.
2, in image read system, each photoelectric sensor is corresponding one by one with the lower focus of each rod-shaped lens, can receive better like this light signal of the characteristics of image that the transmission from different directions of each lens converges, and reads better the graphic feature of original copy.
3, the image read system of the present embodiment can outwards be exported the picture signal of the picture signal of the convex-concave space of a whole page that embodies original copy and the plane characteristic of embodiment original copy simultaneously.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (12)
1. a lens array device, is characterized in that, comprising:
The first rod type lens array (10a), the center line of each rod-shaped lens of described the first rod type lens array (10a) is all positioned in the first plane;
The second rod type lens array (10b), the center line of each rod-shaped lens of described the second rod type lens array (10b) is all positioned in the second plane, and described the second rod type lens array (10b) is oppositely arranged with described the first rod type lens array (10a);
Bracing frame, the first rod type lens array (10a) is fixedly installed on support frame as described above with described the second rod type lens array (10b);
Angle between described the first plane and described the second plane is θ.
2. lens array device according to claim 1, its feature is, described angle theta is less than or equal to the incident angle of the light of described lens array device.
3. lens array device according to claim 1, it is characterized in that, the first end butt correspondingly of the corresponding rod-shaped lens of described the first rod type lens array (10a) and described the second rod type lens array (10b), described the first rod type lens array (10a) is diverged mutually with the second end of each rod-shaped lens of described the second rod type lens array (10b).
4. lens array device according to claim 3, it is characterized in that, described the first rod type lens array (10a) converges in same point with the focus of the first end of two rod-shaped lens corresponding in described the second rod type lens array (10b), and the lower end focus of the lower end focus of the each rod-shaped lens of described the first rod type lens array (10a) and each rod-shaped lens of described the second rod type lens array (10b) is in same level.
5. lens array device according to claim 4, is characterized in that, described the first rod type lens array (10a) is symmetrical arranged with respect to a perpendicular with described the second rod type lens array (10b).
6. lens array device according to claim 4, it is characterized in that, support frame as described above comprises the first support member (11) and the second support member (12) that are oppositely arranged, described the first support member (11) vertically arranges, described the first support member (11) is oppositely arranged with described the second support member (12), described the first rod type lens array (10a) is parallel to described the first support member (11) setting, and described the second rod type lens array (10b) is obliquely installed with respect to described the first rod type lens array (10a).
7. an image read system, is characterized in that, comprising:
Framework (23);
Lens array device (30) in claim 1 to 6 described in any one, described lens array device (30) is fixedly installed in described framework (23);
Photoelectric conversion sensor (21), is arranged at the position of the rod-shaped lens focus of described lens array device the second end, and for converted image electric signal.
8. image read system according to claim 7, is characterized in that, described photoelectric conversion sensor (21) comprising:
Multiple the first photoelectric sensors (21a), the lower end focus corresponding setting one by one of described multiple the first photoelectric sensors (21a) and each rod-shaped lens of described the first rod type lens array (10a);
Multiple the second photoelectric sensors (21b), the lower end focus corresponding setting one by one of described multiple the second photoelectric sensors (21b) and each rod-shaped lens of described the second rod type lens array (10b).
9. image read system according to claim 8, it is characterized in that, described image read system also comprises substrate (22), and described substrate (22) is arranged on the bottom of described framework (23), and described photoelectric conversion sensor (21) is arranged on described substrate (22).
10. image read system according to claim 8, is characterized in that, described image read system also comprises:
Light source (24), is arranged on a side of described lens array device, and near the first end of described lens array device;
Be used for placing the light-passing board (25) of original copy (13), be fixedly installed on the top of described framework (23), described light-passing board (25) covers the top of described lens array device and described light source (24).
11. image read systems according to claim 8, it is characterized in that, described photoelectric conversion sensor (21) comprises photosensitive pixel piece (211), described photosensitive pixel piece (211) can will change light signal and convert electric signal to, multiple described photosensitive pixel pieces (211) are separately positioned in described photoelectric conversion sensor (21), and are arranged on the lower focus position of each rod-shaped lens of described lens array device.
Image read system described in any one in 12. according to Claim 8 to 11, it is characterized in that, described image read system also comprises signal processing circuit (26), and the image optoelectronic information of the original copy (13) of image to be read is processed backward outer output through described signal processing circuit (26).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103675959A (en) * | 2013-12-12 | 2014-03-26 | 威海华菱光电股份有限公司 | Lens array device and image reading system with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103675959A (en) * | 2013-12-12 | 2014-03-26 | 威海华菱光电股份有限公司 | Lens array device and image reading system with same |
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