CN201812046U - Rodlike lens array and image reading device comprising same - Google Patents
Rodlike lens array and image reading device comprising same Download PDFInfo
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- CN201812046U CN201812046U CN2010205454173U CN201020545417U CN201812046U CN 201812046 U CN201812046 U CN 201812046U CN 2010205454173 U CN2010205454173 U CN 2010205454173U CN 201020545417 U CN201020545417 U CN 201020545417U CN 201812046 U CN201812046 U CN 201812046U
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Abstract
The utility model discloses a rodlike lens array with long depth of field and image reading device comprising the same. The rodlike lens array comprises at least one row of first rodlike lens arrays and at least one row of second rodlike lens arrays, wherein the first rodlike lens arrays are formed by a plurality of rodlike lenses with first conjugated length TC1, first height Z1 and first diameter phi1; the second rodlike lens arrays are formed by a plurality of rodlike lenses with second conjugated length TC2, second height Z2 and second diameter phi2; the first rodlike lens arrays and the second rodlike lens arrays are clamped between a first side plate and a second side plate with supporting function; and resin is adopted to splice and fix the first rodlike lens arrays and the second rodlike lens arrays with the first side plate and the second side plate. The utility model has longer depth of field, can effectively improve the condition of image degradation caused by the reason that the manuscript position deviates from the normal focal position in the high-speed image reading process and improves the image reading quality.
Description
Technical field
The utility model relates to a kind of rod type lens array and image read-out, a kind of two kinds of lens arras of different nature are synthesized together of more specifically saying so forms a kind of rod type lens array of growing the depth of field, and the image read-out that uses this rod type lens array to constitute.
Background technology
Usually, as having a kind of image read-out the pattern-information on the original copy to be transformed in the internal memory of the equipment that is saved in after the electrical information in the image-reading devices such as scanner, compound all-in-one or delivering in the computer and preserve.This image read-out mainly comprises light source, rod type lens array and photoelectric conversion sensor.Wherein rod type lens array plays focal imaging, has determined the performance of image read-out to a great extent.
Fig. 1 is the partial structurtes synoptic diagram of the rod type lens array that uses in the conventional images reading device, 2 is existing rod type lens arrays among the figure, the 21st, have the side plate of supporting role, 22 for having another side plate of supporting role, 200 is the monomer rod-shaped lens, 201 is single array lens that monomer rod-shaped lens 200 is arranged in a straight line and forms, and single array lens 201 is clipped between side plate 21 and the side plate 22, is adhesively fixed by adhesives 23.
The common labour length of lens is TC, highly is Z, and the height of focal position is H.Rod type lens array both sides up and down is symmetrical, and the plane of focus corresponds respectively to object plane and picture plane.In use, original copy is positioned over object plane, and photoelectric conversion sensor is positioned over the picture plane.
Fig. 2 is modulation transfer function (the being also referred to as MTF) characteristic of above-mentioned rod type lens array.For whole rod type lens array, when original copy is in object plane promptly in the plane, focal position the time, the mtf value of lens is the highest, just the image transmitted quality is the most clear, when original copy off-focal position, the mtf value of lens will descend, and depart from far away more, mtf value is just low more, and the image transmitted quality is poor more (the just usually said depth of field is too little) just.For rod type lens array, usually picture quality will obviously descend during the 0.2mm left and right sides, original copy off-focal position.Even the rod type lens array that angular aperture is less, the acceptable scope of also having only 0.5mm, and because the modulating transfer function value of the lens of locating in the focal position is the highest, departs from the back and just reduce gradually, so as long as original copy has departed from the focal position, deterioration will take place in the picture quality that reads.
The image read-out sectional drawing that Fig. 3 is to use above-mentioned rod type lens array 2 to constitute, 1 is the line lighting source that can send light and uniform irradiation original copy among the figure, the 2nd, the above-mentioned rod type lens array that the original copy reflected light is converged and carries out imaging, the 3rd, being used to of being arranged in a straight line receives light that rod type lens array 2 converged and the photoelectric conversion sensor that light signal is converted to electric signal, the 4th, the sensor base plate of the photoelectric conversion sensor 3 that lift-launch is arranged in a straight line, the 6th, hold above-mentioned light source 1, rod type lens array 2, the framework of sensor base plate 4,5 are arranged on the light-passing board of the lift-launch original copy on the framework 6, and 10 is original copy.
In above-mentioned image read-out, original copy 10 places the object plane interior (the normally surface of light-passing board) of rod type lens array 2, and photoelectric conversion sensor 3 is arranged in the picture plane of rod type lens array 2.Its imaging process is: the light that light source 1 sends, see through light-passing board 5, shine on the original copy 10 of outside, literal black region light on the original copy 10 is absorbed, and in other white undercolor region of original copy, light almost 100% is reflected, these reflected light pass glass plate 5 again and are collected by rod type lens array 2, shine on the photoelectric conversion sensor 3 on the sensor base plate 4, photoelectric conversion sensor 3 by many photosensitive pixels and can will shine light on each photosensitive pixel carry out opto-electronic conversion and the driving circuit of signal output formed, the light that receives converts telecommunications to after overdrive circuit output is outwards exported as image (literal) information.Original copy constantly moves, and the image information of being put down in writing on it (literal) will be read continuously.
There are following problem in above-mentioned rod type lens array and image read-out: owing to have only original copy to be in the plane, focal position of rod type lens array 2, be on the light-passing board surface of image read-out the time, the picture signal that image read-out reads is only clearly, as long as original copy is the off-focal position a little, the picture quality that reads will obviously descend.In the low-down image-reading device of reading speed in the past, be fixed in the flatbed scanner on light-passing board surface as original copy, compound all-in-one, or the facsimile recorder that original copy is close to the transmission of light-passing board surface is feasible, but development along with technology, the reading speed of image read-out is more and more faster, the original copy strictness can't be confined in the plane, focal position, cash inspecting machine or paper money counter as the financial industry use, its sweep velocity is about 1000/minute, with such speed, original copy (bank note) during by image read-out almost at light-passing board near surface A car sped.In finance device at a high speed, usually in order to allow original copy (bank note) can not produce card paper money phenomenon smoothly by image read-out, the height of the nearly 2mm of passage of original copy (bank note), also just say, when original copy (bank note) passes through image read-out, be to pass through in the scope of the 2mm focal position of rod type lens array near, existing rod type lens array and image read-out can't read distinct image in so wide scope (depth of field), and therefore existing rod type lens array and image read-out can't satisfy this new request for utilization.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of rod type lens array of the depth of field and image read-out that is constituted thereof grown is provided.
The utility model can reach by following measure.
A kind of rod type lens array comprises first side plate with supporting role, second side plate with supporting role, comprises the rod type lens array of at least two row between first side plate and second side plate, it is characterized in that.
Have first a plurality of first rod-shaped lens of using as a servant length T C1, first height Z1, the first diameter Ф 1 altogether, above-mentioned a plurality of first rod-shaped lens are arranged in an array at least and constitute first rod type lens array,
Have second a plurality of second rod-shaped lens of using as a servant length T C2, second height Z2, the second diameter Ф 2 altogether, above-mentioned a plurality of second rod-shaped lens are arranged in an array at least and constitute second rod type lens array,
First rod type lens array of above-mentioned at least one row and second rod type lens array of above-mentioned at least one row are clipped in the first above-mentioned side plate with supporting role and have between the second above-mentioned side plate of supporting role, adopt resin to be adhesively fixed between first lens arra and second lens arra and first side plate and second side plate.
Rod type lens array of the present utility model, the common labour length T C1 of first rod type lens array wherein is different with the common labour length T C2 of second rod type lens array.
Rod type lens array of the present utility model, the height Z1 in first rod type lens array wherein can be different with the height Z2 of second rod type lens array, and the diameter Ф 1 of first rod type lens array also can be different with the diameter Ф 2 of second rod type lens array.
Rod type lens array of the present utility model, first rod type lens array of plural number wherein are near the close arrangement of first side plate, and second rod type lens array of plural number is near the close arrangement of second side plate.Also can be first rod type lens array and the second plural rod type lens array cross arrangement.Perhaps Fu Shuo the close arrangement of first rod type lens array, second rod type lens array of plural number in the both sides of first lens arra respectively with first side plate and the close arrangement of second side plate.
A kind of image read-out, comprise and to send light and the light source of uniform irradiation original copy in sweep limit, the line scan image sensor that will convert electric signal from the reflected light that original copy reflects to and outwards export, above-mentioned reflected light is focused on and image in the rod type lens array on above-mentioned line scan image sensor surface, it is characterized in that above-mentioned rod type lens array comprises.
Have first a plurality of first rod-shaped lens of using as a servant length T C1, first height Z1, the first diameter Ф 1 altogether, above-mentioned a plurality of first rod-shaped lens are arranged in an array at least and constitute first rod type lens array,
Have second a plurality of second rod-shaped lens of using as a servant length T C2, second height Z2, the second diameter Ф 2 altogether, above-mentioned a plurality of second rod-shaped lens are arranged in an array at least and constitute second rod type lens array,
Have first side plate of supporting role and have second side plate of supporting role,
First rod type lens array of above-mentioned at least one row and second rod type lens array of above-mentioned at least one row are clipped in the first above-mentioned side plate with supporting role and have between the second above-mentioned side plate of supporting role, adopt resin to be adhesively fixed between first side of first lens arra and second lens arra and first side plate and second side of second side plate.
The utility model can have the focal position regulating device in the rod type lens array mounted on surface, to regulate the height of rod-shaped lens.
Image read-out of the present utility model, its focal position regulating device is provided in a side of the rod type lens array surface and has the light transmission control agent, specifically control agent is the transparent or semitransparent body with certain light transmission, control agent can stick on the rod type lens array surface, also can or describe to be coated in rod type lens array surface and is cured by printing.
Image read-out of the present utility model, its focal position regulating device cover whole zone on the length direction of rod type lens array, only cover wherein a kind of lens of TC value on the Width of rod type lens array.And when the columns of same a kind of lens arra of its adjacent arrangement (is first lens arra of Ф 1 as diameter) was N1, the thickness of focal position regulating device was less than N1* Ф 1.
Image read-out of the present utility model, its focal position regulating device are arranged at rod type lens array and do not reach near line scan image sensor one side and focal position on a kind of end face of lens arra on line scan image sensor surface.Perhaps the focal position regulating device is arranged on the surface of rod type lens array near a kind of lens arra of original copy one side, and the focal position of two kinds of lens arras is near the both sides of the scope of floating the original copy position.Also can adopt simultaneously by this dual mode.
Effect of the present utility model is, adopted the rod-shaped lens of two kinds of different TC values in the rod type lens array, strengthened the depth of field of rod type lens array.Use the image read-out of this lens, can in very dark field depth, clearly read the image of original copy, used the focal position regulating device simultaneously, the original copy information that rod type lens array is read can accurately converge and image in the line scan image sensor surface, having overcome lens increases the reduction of the modulation transfer function that causes because of the depth of field, improved the resolution of image, made image read-out obtain better development and application in long depth of field application.
Description of drawings
Fig. 1 is the partial structurtes synoptic diagram of existing rod type lens array.
Fig. 2 is the depth of field of existing rod type lens array and the relation of modulation transfer function.
Fig. 3 is the section structure synoptic diagram of conventional images reading device.
Fig. 4 is the partial structurtes synoptic diagram of the rod type lens array of the utility model embodiment 1.
Fig. 5 is the section structure synoptic diagram of the rod type lens array of the utility model embodiment 1.
Fig. 6 is the depth of field of rod type lens array of the utility model embodiment 1 and the relation of modulation transfer function.
Fig. 7, Fig. 8 are the section structure synoptic diagram of the rod type lens array of the utility model embodiment 2.
Fig. 9, Figure 10 are the section structure synoptic diagram of the rod type lens array of the utility model embodiment 3.
Figure 11 is the end face structure synoptic diagram of the rod type lens array of the utility model embodiment 4.
Figure 12 is the partial top view of the rod type lens array of the utility model embodiment 5.
Figure 13 is the sectional schematic diagram of the image read-out of the utility model embodiment 6.
Figure 14 is the partial structurtes synoptic diagram of the rod type lens array that uses in the image read-out of the utility model embodiment 6.
Figure 15, Figure 16, Figure 17 are the modulation transfer function synoptic diagram of the image read-out of executing example 8 of the image read-out of the utility model embodiment 8.
Figure 18 is the sectional schematic diagram of the image read-out of the utility model embodiment 9.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Embodiment 1: Fig. 4 is the partial structurtes synoptic diagram of the rod type lens array of the utility model embodiment 1,20 is rod type lens arrays among the figure, 21 and 22 is the side plates with supporting role, the 200th, the monomer rod-shaped lens, monomer rod-shaped lens 200 has two kinds of structures, have first and use as a servant length T C1 altogether, the first height Z1, a plurality of first rod-shaped lens of the first diameter Ф 1 constitute first rod type lens array 201 by line spread, have second and use as a servant length T C2 altogether, the second height Z2, a plurality of second rod-shaped lens of the second diameter Ф 2 constitute second rod type lens array 202 by line spread, above-mentioned first rod type lens array 201 and above-mentioned second rod type lens array 202 are clipped in the first above-mentioned side plate 21 with supporting role and have between the second above-mentioned side plate 22 of supporting role, adopt resin 23 to be adhesively fixed between first lens arra 201 and second lens arra 202 and first side plate 21 and second side plate 22.
The focal position of first rod type lens array 201 is H1, and its pairing plane of thing side is an object plane 24, is picture plane 25 as the pairing plane of side.The focal position of second rod type lens array 202 is H2, and its pairing plane of thing side is an object plane 26, is picture plane 27 as the pairing plane of side.
In the present embodiment, 201 of first rod type lens arrays adopt 1 row, and second rod type lens array 202 has also only adopted 1 row, and whole rod type lens array is made of two row lens arras.Its section structure as shown in Figure 5.
In the present embodiment, the parameter of two kinds of lens is, the diameter Ф 1 of two row lens is identical with Ф 2, is 0.35mm, and the height Z1 of two row lens is identical with Z2, be 4.3mm, the common labour length T C1 of two row lens is 9.1mm, and TC2 is 10.1mm, and it is 2.4mm that two kinds of pairing focal positions of lens are respectively H1, H2 is 2.9mm, promptly the object plane of two kinds of lens or the picture plane difference height of 0.5mm.According to the difference of actual use occasion, it is poor that different focal positions can be set, but will cause the reduction of modulation transfer function during focal position difference too big, and therefore the difference of focal position is advisable with interior at 1mm usually.
Fig. 6 is the depth of field of rod type lens array of present embodiment and the graph of a relation of modulation transfer function, as can be seen from the figure, adopt the rod type lens array that lens arra constituted of different TC values in the present embodiment, though modulation transfer function decreases, but the depth of field of whole lens has had very big increase, and the modulation transfer function of lens remains unchanged substantially in ± 1mm scope.
The difference of the columns of lens in use can make the light quantity of passing whole lens arra change, be that the lens columns is got over for a long time, the light quantity of passing also can be many more, and just the light signal that can collect of lens can be strong more, is suitable for using under the more weak occasion of light signal.The variation of the modulation transfer function of lens only with the difference correlation of two kinds of lens TC values, its effect is identical with embodiment 1.
Feature of the present utility model is that the lens arra of different TC values is formed behind the rod type lens array because the dislocation of focal position has formed the essentially identical one section zone of modulation transfer function; therefore the composition of other columns that does not comprise in the foregoing description and the arrangement mode of other lens arra also belong to the category that the utility model is protected.
Embodiment 4, and in the above-described embodiments, the lens arra 201 of two kinds of different characteristics is identical with Z2 and diameter Ф 1 with Ф 2 with 202 height Z1.In the present embodiment, the lens arra 201 of two kinds of different characteristics is different with 202 height Z1 with Z2, as shown in figure 11.The difference of lens height also must be accompanied by the difference of lens focus position, therefore has same effect with embodiment 1.What use in the present embodiment is that two row lens have constituted rod type lens array, adopts the composition mode of other columns and present embodiment that same effect is arranged.
In above-mentioned image read-out, what rod type lens array 20 adopted is the rod type lens array of Figure 10, this rod type lens array is made of 2 row, 202 lens arras and 3 row, 201 lens arras, and arrange in the middle of 3 row, 201 lens arras that the TC value is short place, 2 row, 202 lens that the TC value is long place 201 arranged on both sides.Its partial enlarged drawing as shown in figure 14.
In above-mentioned image read-out, original copy 10 places the centre position of two object planes of rod type lens array 20, and photoelectric conversion sensor 3 is arranged in the picture plane far away of rod type lens array 20.Its imaging process is: the light that light source 1 sends, see through light-passing board 5, shine on the original copy 10 of outside, literal black region light on the original copy 10 is absorbed, and in other white undercolor region of original copy, light almost 100% is reflected, these reflected light pass glass plate 5 again and are collected by rod type lens array 20, shine on the photoelectric conversion sensor 3 on the sensor base plate 4, photoelectric conversion sensor 3 by many photosensitive pixels and can will shine light on each photosensitive pixel carry out opto-electronic conversion and the driving circuit of signal output formed, the light that receives converts telecommunications to after overdrive circuit output is outwards exported as image (literal) information.Original copy constantly moves, and the image information of being put down in writing on it (literal) will be read continuously.
In above-mentioned image read-out, because rod type lens array 20 has two object planes, two promptly highly different focuses, and original copy is arranged at the centre of two object planes (or focal position), therefore, read in the process at image, even the position of original copy has some to depart from, also still be between two object planes of rod type lens array, in this interval, the modulation transfer function of lens is constant basically, and the image that therefore read all is same sharpness, and the quality of image can deterioration not take place because of the slight variation of original copy position.
Embodiment 7, and the rod type lens array 20 that uses in the foregoing description 6 is 5 array structures, and is made up of 3 row 201 and 2 row 201.Also can use given any frame mode in the previous embodiment 1 to embodiment 5, all have same effect.
The rod type lens array that uses in the present embodiment remains by 5 row lens arras and constitutes, and this 5 row lens arra is to be made of 2 row TC values long 202 lens arras and 201 short lens arras of 3 row TC values, arrange in the middle of short 3 row, 201 lens arras of TC value place, 2 row, 202 lens that the TC value is long place 201 arranged on both sides.Photoelectric conversion sensor 3 is arranged in the lens arra 202 pairing picture planes.
The focal position regulating device of using in the present embodiment 8 is arranged at a side of the close photoelectric commutator 3 of rod type lens array, on the length direction of rod type lens array, cover whole zone, only be covered on the Width of rod type lens array on 3 row, 201 lens arras of TC value that are positioned at the rod type lens array center than weak point.
In the present embodiment, what focal position regulating device 8 adopted is the propylene transparent panel, and its refractive index is 1.49, also can adopt other transparent material, as the material of glass, polycarbonate, transparent ABS or some other high index of refraction etc.The refractive index decision of two kinds of lens arras 201 of the thickness of transparent panel and rod type lens array and 202 focal position difference and transparent panel.
We know, the direction of its propagation can change when light was propagated between the medium of two kinds of different refractivities, when the direction of propagation of light from optically thinner medium (medium that refractive index ratio is less) directive optically denser medium (medium that refractive index the is bigger) time reduces with respect to its angle of normal, when the direction of propagation of light from optically denser medium (medium that refractive index ratio is bigger) directive optically thinner medium (medium that refractive index the is less) time increases with respect to its angle of normal.When Figure 16 has provided the light that comes out from rod type lens array and has passed transparent panel (be air on every side, the refractive index of air is 1.0) as the focal position regulating device, the situation of change of the direction of propagation of light.As can be seen from the figure, the refraction angle θ 2 when passing optically denser medium owing to light is less than incident angle (or emergence angle) θ 1 of light, so being directed downwards of direction glazing propagation of looking at figure has been offset.
Light comes out after behind the overfocus apparatus for adjusting position from rod type lens array, because change has taken place in the direction of propagation of light, therefore also make the focal position of lens that change has taken place, and its refraction angle θ 2 was less than incident angle θ 1 when light passed as the transparent panel of focal position regulating device, therefore make the focus of rod type lens array drift about to the distant place, the drift value of focal position can be expressed from the next:
Δt=［（n-1）/n］*t。
Here t is the thickness of transparent panel, and n is the refractive index of transparent panel, and Δ t is the drift value of focal position.For example in the present embodiment, the transparent panel that uses is 1.49 propylene transparent panel as refractive index, and thickness is 1mm, then can make the focal position drift 0.33mm of lens.Also can use the bigger light transmissive material of refractive index, or the thicker material of thickness, can make the drift value of focal position bigger, its final requirement is by the drift value of the focus on the picture plane that increases the relatively shorter lens of focus, and lens arra 201 is overlapped with the focal position (as the plane) of lens arra 202.
Embodiment 9, and present embodiment is on the basis of embodiment 8, also increased the image read-out of focal position regulating device on the surface of the object plane side of rod-shaped lens.Figure 18 is the sectional schematic diagram of the image read-out of present embodiment.Kept the focal position regulating device 8 on the picture plane of lens among the figure, the while has also increased focal position regulating device 8 on the surface of the object plane side of lens.Two kinds of focal position regulating devices are to make with same material.Be arranged in the focal position regulating device that is provided with on the surface of object plane side on the surface of the distant lens arra in focal position 202, the focal position that makes lens arra 202 is more to drift at a distance, the focal position difference of the object plane side of two kinds of lens is increased, will keep consequently that original copy has wideer domain of walker under the constant condition of image reading quality.Present embodiment is applicable to the wideer occasion of channel range that original copy passes through.
Embodiment 11, in the foregoing description 8 to embodiment 10, what the focal position regulating device adopted is light-passing board, is affixed on lens surface, also can use gluey transparent or semitransparent body, by printing or describe to be coated in rod type lens array surface and be cured with certain light transmission.
Claims (10)
1. a rod type lens array comprises first side plate with supporting role, second side plate with supporting role, comprises the rod type lens array of at least two row between first side plate and second side plate, it is characterized in that:
Have first a plurality of first rod-shaped lens of using as a servant length T C1, first height Z1, the first diameter Ф 1 altogether, above-mentioned a plurality of first rod-shaped lens are arranged in an array at least and constitute first rod type lens array,
Have second a plurality of second rod-shaped lens of using as a servant length T C2, second height Z2, the second diameter Ф 2 altogether, above-mentioned a plurality of second rod-shaped lens are arranged in an array at least and constitute second rod type lens array,
First rod type lens array of above-mentioned at least one row and second rod type lens array of above-mentioned at least one row are clipped in the first above-mentioned side plate with supporting role and have between the second above-mentioned side plate of supporting role, adopt resin to be adhesively fixed between first rod type lens array and second rod type lens array and first side plate and second side plate.
2. a kind of rod type lens array according to claim 1, it is characterized in that the common labour length T C1 of first rod type lens array and the common labour length T C2 of second rod type lens array are inequality, the height Z1 of first rod type lens array and the height Z2 of second rod type lens array are inequality, and the diameter Ф 1 of first rod type lens array and the diameter Ф 2 of second rod type lens array are inequality.
3. according to claim 1 or the described rod type lens array of claim 2, first rod type lens array that it is characterized in that plural number is near the close arrangement of first side plate, and second rod type lens array of plural number is near the close arrangement of second side plate.
4. according to claim 1 or the described rod type lens array of claim 2, it is characterized in that the second rod type lens array cross arrangement of first rod type lens array with the plural number of plural number.
5. according to claim 1 or the described rod type lens array of claim 2, it is characterized in that the close arrangement of first rod type lens array of plural number, second rod type lens array of plural number in the both sides of first lens arra respectively with first side plate and the close arrangement of second side plate.
6. image read-out, comprise and to send light and the light source of uniform irradiation original copy in sweep limit, the line scan image sensor that will convert electric signal from the reflected light that original copy reflects to and outwards export, above-mentioned reflected light is focused on and images in the rod type lens array on above-mentioned line scan image sensor surface, it is characterized in that above-mentioned rod type lens array comprises:
Have first a plurality of first rod-shaped lens of using as a servant length T C1, first height Z1, the first diameter Ф 1 altogether, above-mentioned a plurality of first rod-shaped lens are arranged in an array at least and constitute first rod type lens array,
Have second a plurality of second rod-shaped lens of using as a servant length T C2, second height Z2, the second diameter Ф 2 altogether, above-mentioned a plurality of second rod-shaped lens are arranged in an array at least and constitute second rod type lens array,
Have first side plate of supporting role and have second side plate of supporting role,
First rod type lens array of above-mentioned at least one row and second rod type lens array of above-mentioned at least one row are clipped in the first above-mentioned side plate with supporting role and have between the second above-mentioned side plate of supporting role, adopt resin to be adhesively fixed between first side of first lens arra and second lens arra and first side plate and second side of second side plate.
7. a kind of image read-out according to claim 6 is characterized in that the rod type lens array surface is provided with the focal position regulating device, and the focal position regulating device is provided in a side of the rod type lens array surface and has the light transmission control agent.
8. a kind of image read-out according to claim 7, it is characterized in that the focal position regulating device covers whole zone on the length direction of rod type lens array, only cover wherein a kind of lens of TC value on the Width of rod type lens array, the thickness of light modulation body is less than N1* Ф 1.
9. a kind of image read-out according to claim 7 is characterized in that the focal position regulating device is arranged at rod type lens array and does not reach near line scan image sensor one side and focal position on a kind of end face of lens arra on line scan image sensor surface.
10. according to claim 7 or the described image read-out of claim 9, it is characterized in that the focal position regulating device is arranged on the surface of rod type lens array near a kind of lens arra of original copy one side, the focal position of two kinds of lens arras is near the both sides of the scope of floating the original copy position.
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| CN2010205454173U CN201812046U (en) | 2010-08-24 | 2010-09-28 | Rodlike lens array and image reading device comprising same |
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| CN201020502730 | 2010-08-24 | ||
| CN201020502730.9 | 2010-08-24 | ||
| CN2010205454173U CN201812046U (en) | 2010-08-24 | 2010-09-28 | Rodlike lens array and image reading device comprising same |
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| CN2010205454578U Expired - Fee Related CN201839354U (en) | 2010-08-24 | 2010-09-28 | Contact type image sensor |
| CN2010205454173U Expired - Fee Related CN201812046U (en) | 2010-08-24 | 2010-09-28 | Rodlike lens array and image reading device comprising same |
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| CN103543479A (en) * | 2012-07-17 | 2014-01-29 | 三菱丽阳株式会社 | Method for manufacturing rod shaped lens array |
| CN105096445A (en) * | 2015-06-26 | 2015-11-25 | 广州广电运通金融电子股份有限公司 | Ticket image collection system |
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| JP2015096878A (en) * | 2013-11-15 | 2015-05-21 | 日本オクラロ株式会社 | Optical reception module and optical transmission module |
| DE102017222845A1 (en) * | 2017-12-15 | 2019-06-19 | Robert Bosch Gmbh | Sensor device for detecting electrically conductive media, method for operating the sensor device |
| CN110736975B (en) * | 2019-11-07 | 2020-11-27 | 上海禾赛光电科技有限公司 | Receiving module and laser radar comprising same |
-
2010
- 2010-09-28 CN CN2010205457862U patent/CN201813454U/en not_active Expired - Lifetime
- 2010-09-28 CN CN2010205454578U patent/CN201839354U/en not_active Expired - Fee Related
- 2010-09-28 CN CN2010205454173U patent/CN201812046U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543479A (en) * | 2012-07-17 | 2014-01-29 | 三菱丽阳株式会社 | Method for manufacturing rod shaped lens array |
| CN103543479B (en) * | 2012-07-17 | 2015-08-05 | 三菱丽阳株式会社 | The manufacture method of rod type lens array |
| CN105096445A (en) * | 2015-06-26 | 2015-11-25 | 广州广电运通金融电子股份有限公司 | Ticket image collection system |
| CN105096445B (en) * | 2015-06-26 | 2017-12-22 | 广州广电运通金融电子股份有限公司 | A kind of ticket image capturing system |
| US10121302B2 (en) | 2015-06-26 | 2018-11-06 | Grg Banking Equipment Co., Ltd. | Note image acquisition system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201839354U (en) | 2011-05-18 |
| CN201813454U (en) | 2011-04-27 |
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Owner name: WEIHAI HUALING OPTO-ELECTRONICS CO., LTD. Free format text: FORMER NAME: WEIHAI HUALING OPTOELECTRONIC CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 264209 Weihai high tech Industrial Development Zone, Shandong Torch Road, No. 159 Patentee after: Weihai Hualing Opto-electronics Co.,Ltd. Address before: 264209 Weihai high tech Industrial Development Zone, Shandong Torch Road, No. 159 Patentee before: Weihai Hualing Optoelectronic Co., Ltd. |
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