CN101895663B - Contact type image sensor - Google Patents
Contact type image sensor Download PDFInfo
- Publication number
- CN101895663B CN101895663B CN201010249735.XA CN201010249735A CN101895663B CN 101895663 B CN101895663 B CN 101895663B CN 201010249735 A CN201010249735 A CN 201010249735A CN 101895663 B CN101895663 B CN 101895663B
- Authority
- CN
- China
- Prior art keywords
- light
- lens
- array
- photographic department
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Facsimile Heads (AREA)
Abstract
The invention discloses a contact type image sensor with a rodlike lens array composed of a composite lens array, which comprises a light source, a photosensitive part and the composite rodlike lens array, wherein the light source can emit light with at least two colors, including ultraviolet light, and can uniformly irradiate the reading position of an original pattern; the photosensitive part, which is arranged in a straight line, can convert photosignals of the original pattern into electric signals and output the electric signals; the photosensitive part is composed of a reflected light photosensitive part and an exciting light photosensitive part, the reflected light photosensitive part is used for receiving reflected light information generated when the light source irradiates onto the original pattern, and the exciting light photosensitive part is used for receiving exciting light information generated when the light source irradiates onto the original pattern; the composite rodlike lens array can converge the generated photosignals of the original pattern and form an image on the surface of the photosensitive part; and the inside of the composite rodlike lens array is composed of a plurality of single array lens sets which are linearly arranged in rows. The invention can effectively balance the intensity of fluorescence signals, which are generated when ultraviolet light excites the original pattern, and image signals of reflected light, which are generated when common visible light irradiates on the original pattern, thereby enhancing the image reading quality.
Description
Technical field
The present invention relates to a kind of linear image reading device, is a kind of contact-type image sensor that adopts compound lens array specifically.
Background technology
Fig. 1 is the sectional drawing of existing contact-type image sensor, in figure, 1 is the line lighting source that can send light uniform irradiation original copy, the 2nd, the rod type lens array that original copy reverberation is converged and carries out to imaging, the 3rd, be arranged in a straight line for receiving the light that rod type lens array 2 converges the photographic department (photosensitive integrated circuit) that light signal is converted to the signal of telecommunication, the 4th, the sensor base plate of the photographic department 3 that lift-launch is arranged in a straight line, the 6th, hold the framework of light source 1, lens 2, sensor base plate 4,5 are arranged on the light-passing board of the lift-launch original copy on framework 6, and 10 is original copy.
In above-mentioned image read-out, the light that light source 1 sends, see through light-passing board 5, be irradiated on the original copy 10 of outside, the word black region light on original copy 10 is absorbed, and in other white undercolor region of original copy, light almost 100% is reflected, these reverberation through light-passing board 5, are collected by lens 2 again, are irradiated to the surface of the photographic department 3 carrying on sensor base plate 4.Photographic department 3 is by many photosensitive pixels and the light being irradiated on each photosensitive pixel can be carried out to opto-electronic conversion, and the drive circuit of signal output is formed.The light receiving converts telecommunications to and exports by overdrive circuit, as image (word) information, outwards exports.Original copy constantly moves, and the image information of recording on it (word) will be read continuously.
Along with the development of anti-counterfeiting technology, require imageing sensor not only will there is traditional image scanning function, also want can the anti-counterfeiting image information in original copy be scanned.Conventionally in order to make contact-type image sensor can scan bank note, marketable securities etc. with the anti-counterfeiting image information in the original copy of anti-counterfeiting information, the Lights section of contact-type image sensor, except traditional visible ray, has been introduced again invisible light as infrared light, ultraviolet light etc.
Fig. 2 is the another kind of existing sectional drawing that has increased the contact-type image sensor of ultraviolet light, and in figure, 1a is the ultraviolet illumination light source that can send ultraviolet light energy uniform irradiation original copy, and 1b is visible light source, the 8th, and ultraviolet light spacer assembly.Other is identical with Fig. 1 symbol identical or suitable with Fig. 1.
In above-mentioned contact-type image sensor, the ultraviolet light that light source 1a emits, see through light-passing board 5, be irradiated on the original copy 10 that needs scanning, anti-fake mark hiding in original copy 10 produces fluorescence under the incentive action of ultraviolet light, and these fluorescence through light-passing board 5, are collected by rod type lens array 2 again, be irradiated on the photographic department 3 carrying on sensor base plate 4, and convert thereof into the signal of telecommunication outwards output by photographic department 3.Meanwhile, in order to prevent that the ultraviolet light of original copy reflection from entering photographic department 3 and producing invalid interference signal, conventionally need to use 8 pairs of ultraviolet lights that are irradiated to photographic department 3 of ultraviolet light spacer assembly to shield.The scanning process of visible images as hereinbefore.
Fig. 3 is the local structural graph of the rod type lens array that uses in existing contact-type image sensor, it comprises first side plate 21 with supporting role, second side plate 22 with supporting role, monomer rod-shaped lens 200, the single array lens 201 being become by linear array by monomer rod-shaped lens 200, and the adhesives between lens and side plate 23.In above-mentioned imageing sensor, the reverberation that the exciting light that UV-irradiation original copy produces and radiation of visible light original copy produce is all that each the monomer rod-shaped lens 200 in the single array lens 201 in scioptics 2 converges to photographic department surface.Other is identical with Fig. 1 symbol identical or suitable with Fig. 1.
In above-mentioned contact-type image sensor, there is following problem: because the luminous intensity of current ultraviolet source is far less than the luminous intensity of visible light source, the reverse visible light intensity of the strength ratio original copy of the fluorescence therefore being produced by the excitation of UV-irradiation original copy is much lower, and rod type lens array is also certain to the transmission coefficient of light, therefore the signal that converges to photographic department 3 with the reverberation being reflected by original copy via rod type lens array and carry out producing after opto-electronic conversion is compared, the fluorescence that the excitation of UV-irradiation original copy produces converges to photographic department 3 and carries out the signal of telecommunication that opto-electronic conversion generates through rod type lens array, its signal to noise ratio is very low, the non-constant of quality of resulting image cannot reach the object of false proof discriminating.If the faint fluorescence signal of take carries out image processing as reference data, and catoptrical image is because intensity is far away higher than fluorescence signal, therefore there will be hypersaturated state, product also cannot normally be used.In addition, because the cost of manufacture of ultraviolet source is high more a lot of than visible ray, if strengthen the luminous intensity of ultraviolet source in order to improve the intensity of the fluorescence signal that UV-irradiation original copy excitation produces, the cost of manufacture of light source can very highly also can affect promoting the use of of product.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the reflected image signal that a kind of fluorescence image signal that ultraviolet light is produced is provided and visible ray is produced can carry out effective balance, makes the contact-type image sensor of the high precision that two kinds of picture signals can accurately read and export.
The present invention can reach by following measure.
A kind of contact-type image sensor, comprise light source, rod type lens array, photographic department, sensor base plate, framework, light-passing board, it is characterized in that light source is at least can send the light of two kinds of colors that comprise ultraviolet light and can read position by uniform irradiation original copy, photographic department is comprised of two parts, a part is for shining the reverberation photographic department of the reflected light information producing on original copy for receiving light source, another part is for shining the exciting light photographic department of the exciting light information producing on original copy for receiving light source, single array lens that rod type lens array inside is arranged in a straight line by multiple row forms.
Contact-type image sensor of the present invention, each the single rod-shaped lens forming in single array lens of composite club-shaped lens arra is identical, and the diameter of single rod-shaped lens is d, the useful effect diameter of single rod-shaped lens in the plane of focal position is D, and the columns of the single-row lens arra that arrange composite club-shaped lens arra inside can reach D/d.According to the difference of TC value, diameter, length and the angular aperture of single lens, generally can reach 3 row to 8 row left and right.
Contact-type image sensor of the present invention, exciting light photographic department is arranged on the central shaft position of the rod type lens array being comprised of multiple row list array lens.On this position, the lens of each the single array in composite club-shaped lens arra can be collected exciting light signal imaging and the exciting light photographic department surface of the original copy at image reading position place, by photographic department, convert thereof into the signal of telecommunication to locating output, owing to there being the lens of multiple row list array to carry out the collection of exciting light, the intensity of the signal of the light of therefore collecting has strengthened, and the signal of telecommunication after conversion has also been strengthened.In exciting light photographic department surface, be provided with and can prevent that the ultraviolet light of original copy reflection from arriving the ultraviolet light spacer assembly of exciting light photographic department, to eliminate the ultraviolet light arrival exciting light photographic department of original copy reflection, produce interference signal simultaneously.
Contact-type image sensor of the present invention, reverberation photographic department is arranged at a side of exciting light photographic department, is positioned on the central shaft position of submarginal single array lens of rod type lens array.The lens of single array or the single array lens on its side that so only face reverberation photographic department just can work to collecting the reflected light signal of original copy, and the light signal of collecting like this can still keep original intensity and can not strengthen because of the increase of lens columns.Therefore its signal of telecommunication being converted to by reverberation photographic department is also the intensity that has kept original.
Contact-type image sensor of the present invention, the light timesharing of its ultraviolet light and other color is luminous, can obtain respectively the signal of exciting light and the reflected light signal of visible ray like this.
Effect of the present invention is, contact-type image sensor has adopted composite club-shaped lens arra, and two kinds of photographic departments are exciting light photographic department and reverberation photographic department, photographic department is arranged at the center of rod type lens array, can collect more exciting light signal so that the output intensity of exciting light signal to be provided, reverberation photographic department is arranged at the edge of rod type lens array, keep the output intensity of reflected light signal constant, use like this exciting light signal and reflected light signal substantially to reach unified output intensity, greatly improved the reading quality of image.
Accompanying drawing explanation.
Fig. 1 is the sectional view of existing contact-type image sensor.
Fig. 2 is the another kind of sectional view that connects present touch imageing sensor.
Fig. 3 is the rod type lens array partial schematic diagram that existing contact-type image sensor is used
Fig. 4 is the schematic cross-section of contact-type image sensor of the present invention.
Fig. 5 is the schematic diagram of the rod type lens array that uses in the present invention.
Fig. 6 is the local enlarged diagram of the rod type lens array that uses in the present invention.
Fig. 7 is the architectural characteristic schematic diagram of the rod type lens array that acts in the present invention.
Fig. 8 is the photographic department of contact-type image sensor of the present invention and the relative position schematic diagram of rod type lens array.
Fig. 9 is light that in the present invention, original copy sends and the location diagram of receiver lens
Figure 10 is the schematic diagram that in rod type lens array, each single array lens receives light intensity.
Figure 11 is the schematic diagram that exciting light photographic department receiver lens converges light.
Figure 12 is the schematic diagram that reverberation photographic department receiver lens converges light.
Figure 13 is the internal structure schematic diagram of rod type lens array of the present invention.
Figure 14 is the another kind of internal structure schematic diagram of rod type lens array of the present invention.
Figure 15 is the schematic cross-section of the contact-type image sensor of the embodiment of the present invention 2.
Figure 16 is the schematic cross-section of the contact-type image sensor of the embodiment of the present invention 3.
Figure 17 is the schematic cross-section of the contact-type image sensor of the embodiment of the present invention 4.
Embodiment.
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment 1: Fig. 4 is the cross-section structure of the embodiment of the present invention 1, in figure, 1a is the ultraviolet source that can send ultraviolet light energy uniform irradiation original copy, 1b is the visible light source that can send monochrome or multicolor visible light energy uniform irradiation original copy, the 20th, composite club-shaped lens arra, for collecting light source, irradiate reverberation or the exciting light that original copy produces, 3a is the exciting light photographic department that receives the fluorescence that ultraviolet source irradiation original copy excitation that rod type lens array 20 converges produces, 3b is that the visible light source that reception rod type lens array 20 converges irradiates the catoptrical reverberation photographic department that original copy produces.
The 4th, the photosensitive integrated circuit 3a that lift-launch is arranged in a straight line and the sensor base plate of 3b, the 6th, hold the framework of ultraviolet source 1a, visible light source 1b, rod type lens array 20 and sensor base plate 4,5 are arranged on the light-passing board of the lift-launch original copy on framework 6, the 8th, be coated in the ultraviolet light filter coating on 3a, 10 is original copy.The 7th, for contact-type image sensor provides voltage signal, logic control signal, light source control signal and the outside socket of output image signal.
Rod type lens array 20 is structures of an elongated strip shaped, and its length covers whole sweep limits, and its overall structure schematic diagram as shown in Figure 5.Fig. 6 is the partial enlarged drawing of rod type lens array, whole rod type lens array 20 comprises the side plate 21 and 22 with supporting role, monomer rod-shaped lens 200, the single array lens 201 being become by linear array by monomer rod-shaped lens 200, multiple row einzel lens array 201 close-packed arrays are clipped between support side plate 21 and 22, between side plate and lens, by adhesives 23, are adhesively fixed.
Rod type lens array is that the columns of single array lens arrangement is relevant with the feature of monomer lens.The common labour length of monomer lens is TC, be highly Z, diameter is d, and the angular aperture of lens is θ, and the plane at the TC value place that lens two ends are corresponding is the focal plane at two ends, in focal plane, the diameter of the effective range of lens is D, that is to say centered by the axis of lens, and the light in the scope of the diameter D in focal plane just may enter lens and be collected by lens, light beyond this scope cannot be collected by lens, as shown in Figure 7.The size of D value and the pass of lens parameter are:
D=(TC-Z)*Tanθ+d
For on the lens centre axle in focal plane a bit, its luminous light is corresponding to just meeting the characteristic at lens openings angle within the same D scope in lensed endface plane, that is to say that the light within the D scope in the plane of lensed endface is just likely received, the light that surpasses this scope just cannot be received.So effective columns of single array lens 201 is D/d in rod type lens array 20.
The TC value of the lens that use in this truth example is 10mm, and lens height is 4.4mm, and diameter is 0.35mm, and the angular aperture of lens is 12 degree, so the rod type lens array 20 using in the present embodiment consists of 5 array lenses 201 of itemizing.In reality, D/d can not be often integer, so that actual columns is got the approximation of D/d is just passable.But no matter larger or little than D/d, all within protection of the present invention.
In the present embodiment, the exciting light photographic department 3a that receives the fluorescence signal that the excitation of ultraviolet source irradiation original copy produces is arranged on the position of central shaft of whole composite club-shaped lens arra, the reverberation photographic department 3b that receives the reflected light signal of visible light source irradiation original copy generation is arranged at a side of 3a, be arranged on the central shaft of single array lens at the edge of composite club-shaped lens arra, as shown in Figure 8.In Fig. 8, provided the partial structurtes schematic diagram of the relative position of photographic department and rod type lens array.Exciting light photographic department 3a is right against 5 of rod type lens array 20 and itemizes in the axial location of array lens 201 center one row, reverberation photographic department 3b is positioned at a side of exciting light photographic department 3a, is right against on the central shaft of single array lens 201 at edge of rod type lens array 20.
Common original copy, as bank note, marketable securities or paper manuscript etc., its surface is not minute surface, but a kind of coarse surface, no matter light from which direction is irradiated to original copy, no matter is reverberation or the exciting light of original copy, can regard approx random astigmatism as, in all directions of original copy side, have, and with original copy vertical direction on strength ratio larger, and with the direction of original copy equality on its intensity smaller.Therefore for the array lens of itemizing of 5 in rod-shaped lens battle array 20, one of the center light that array lens receives of itemizing is the strongest, and the meeting of both sides is weak a little.As shown in Figure 9 and Figure 10.Fig. 9 is light that in the present invention, original copy sends and the location diagram of receiver lens, and Figure 10 is the schematic diagram that in rod type lens array, each single array lens receives light intensity.
The rod type lens array adopting in the present embodiment is to comprise 5 array lenses of itemizing, constant at light source, original copy is also in identical situation, its light intensity receiving is 4 times of left and right only having the rod type lens array of row, has greatly improved the utilance of the light signal that original copy provides.Especially this fainter signal of exciting light producing for UV-irradiation original copy, this method is very obvious for its effect of reading quality that improves image.
In the present embodiment, the exciting light photographic department 3a that receives the fluorescence signal that the excitation of ultraviolet source irradiation original copy produces is arranged on the position of central shaft of whole composite club-shaped lens arra, and the schematic diagram that its receiver lens converges light as shown in figure 11.On the center of whole lens, each array lens 201 of itemizing can converge the exciting light of collecting and image in exciting light photographic department 3a surface, has greatly improved the utilance of light signal.3a converts light signal to the signal of telecommunication outwards output.
In the present embodiment, the reverberation photographic department 3b that receives the reflected light signal of visible light source irradiation original copy generation is arranged at a side of 3a, be arranged on the central shaft of single array lens at the edge of composite club-shaped lens arra, the schematic diagram that its receiver lens converges light as shown in figure 12.On the marginal position of a side of whole lens, only have the submarginal single array lens 201 of this side the reverberation of collecting can be converged and image in reverberation photographic department 3b surface, the einzel lens array of opposite side is because the incident angle of light is greater than the angular aperture θ of lens, therefore cannot be collected by lens, like this basic guarantee the reflected light signal collected of whole lens substantially keep original level can not increase too much, make it substantially to reach a kind of strength balance state with the signal of exciting light, be conducive to the processing to view data, to can obtain image scanning result clearly.
In the present embodiment; single array lens of rod type lens array 20 inside adopts staggered mode to form; as shown in figure 13; also can adopt the orthogonal arrangement mode of Figure 14; also can all use at the inner two kinds of arrangement modes of rod type lens array; which kind of arrangement mode all has effect of the present invention, all within protection of the present invention.
Embodiment 2: in the above-described embodiments, adopted exciting light photographic department and backlight photographic department larger exciting light signal and the reflected light signal of two kinds of difference of receiving intensity respectively, and by the position difference of photographic department, regulated the intensity of receiving optical signals.Outside the present embodiment and embodiment 1 different, be that photographic department is only provided with exciting light photographic department and light source is only provided with the ultraviolet source that can send ultraviolet light, exciting light photographic department is still arranged on the central shaft position of rod type lens array 20.As shown in figure 15.The contact-type image sensor of the present embodiment is applicable to not need the visible images to conventional to read, and only separately for the fluorescence signal of indivedual anti-counterfeiting images being read to the occasion of discriminating.
Embodiment 3: in the present embodiment, light source is only provided with conventional visible light source 1b, and photographic department is only provided with conventional reverberation photographic department 3b, and photographic department 3b is arranged on the central shaft position of rod type lens array 20.The contact-type image sensor of the present embodiment is applicable to only normal image be carried out to the occasion reading at a high speed.When conventionally reading speed is higher, the time of reading a line is just shorter, and photographic department is accepted time of illumination will be shorter, and the output signal strength of imageing sensor is lower.The present embodiment is also arranged at visible ray photographic department 3b on the central shaft position of rod-shaped lens 20, under same sweep speed, can significantly improve the output intensity of signal; The intensity that also can keep output signal is constant and realize the significantly raising of sweep speed.
Embodiment 4: the present embodiment is on the basis of embodiment 3, to have increased the external light source 100 that sees through, and as shown in figure 17, are applicable to the image that sees through of original copy to carry out the occasion reading at a high speed.External light source 100 comprises lamp guide 101, circuit substrate 102, and light source framework 103, light source light-passing board 104, and electrical connector socket 105, the illuminating part of light source is arranged at the two ends of light source (not shown in FIG.).
The light that external light source sends can be visible ray, can be also the invisible lights such as infrared light or ultraviolet light.External light source 100 is controlled its fluorescent lifetime by controller respectively with built-in light source 1b, and controller is same as the prior art, and this does not repeat, and when carrying out reflected light image while reading, built-in light source 1b opens, and external light source 100 is closed.In the time will seeing through image reading, external light source 100 is opened, and built-in light source 1b closes.
Claims (3)
1. a contact-type image sensor, comprise light source, rod type lens array, photographic department, sensor base plate, framework, light-passing board, it is characterized in that light source is at least can send the light of two kinds of colors that comprise ultraviolet light and can read position by uniform irradiation original copy, photographic department is comprised of two parts, a part is for shining the reverberation photographic department of the reflected light information producing on original copy for receiving light source, another part is for shining the exciting light photographic department of the exciting light information producing on original copy for receiving light source, exciting light photographic department is arranged on the central shaft position of the rod type lens array being comprised of multiple row list array lens, the exciting light signal that all single array lenses are collected converts the signal of telecommunication outwards output to, single array lens that composite club-shaped lens arra inside is arranged in a straight line by multiple row forms, each single rod-shaped lens in single array lens is identical, the diameter of single rod-shaped lens is d, the useful effect diameter of single rod-shaped lens in the plane of focal position is D, the columns of single-row lens arra is D/d.
2. contact-type image sensor according to claim 1, is characterized in that reverberation photographic department is arranged at a side of exciting light photographic department, is positioned on the central shaft position of submarginal single array lens of rod type lens array.
3. contact-type image sensor according to claim 1, is characterized in that the reflected light signal that reverberation photographic department is collected the single array lens of part on the central shaft position of submarginal single array lens of rod type lens array converts the signal of telecommunication outwards output to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010249735.XA CN101895663B (en) | 2010-08-10 | 2010-08-10 | Contact type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010249735.XA CN101895663B (en) | 2010-08-10 | 2010-08-10 | Contact type image sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101895663A CN101895663A (en) | 2010-11-24 |
| CN101895663B true CN101895663B (en) | 2014-12-03 |
Family
ID=43104717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010249735.XA Active CN101895663B (en) | 2010-08-10 | 2010-08-10 | Contact type image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101895663B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1386360A (en) * | 2000-07-18 | 2002-12-18 | 松下电器产业株式会社 | Image processor, its image reader and fiber lens, and method for manufacturing fiber lens |
| CN2537061Y (en) * | 2002-03-15 | 2003-02-19 | 山东华菱电子有限公司 | Contact image sensor |
| CN1430770A (en) * | 2000-06-07 | 2003-07-16 | 联邦印刷有限公司 | Device for verifying documents |
| CN201323623Y (en) * | 2008-12-31 | 2009-10-07 | 威海华菱光电有限公司 | Contact-type image sensor with image fake distinguishing function |
| CN201733368U (en) * | 2010-08-10 | 2011-02-02 | 威海华菱光电有限公司 | Contact image sensor |
-
2010
- 2010-08-10 CN CN201010249735.XA patent/CN101895663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1430770A (en) * | 2000-06-07 | 2003-07-16 | 联邦印刷有限公司 | Device for verifying documents |
| CN1386360A (en) * | 2000-07-18 | 2002-12-18 | 松下电器产业株式会社 | Image processor, its image reader and fiber lens, and method for manufacturing fiber lens |
| CN2537061Y (en) * | 2002-03-15 | 2003-02-19 | 山东华菱电子有限公司 | Contact image sensor |
| CN201323623Y (en) * | 2008-12-31 | 2009-10-07 | 威海华菱光电有限公司 | Contact-type image sensor with image fake distinguishing function |
| CN201733368U (en) * | 2010-08-10 | 2011-02-02 | 威海华菱光电有限公司 | Contact image sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101895663A (en) | 2010-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101699844B (en) | Full-spectrum identification image sensor | |
| CN1220046C (en) | Ultravoilet light/fluorescent light detection apparatus and sensing method thereof | |
| CN1303803C (en) | Contact-type image sensor module and image reading apparatus using the module | |
| CN103534627A (en) | Light guided pixel | |
| CN103048299B (en) | Super-resolution microscopic method and device based on fluorescence lifetime difference | |
| CN103414838A (en) | Image scanning device and control method thereof | |
| CN101783855A (en) | Contact-type image sensor | |
| CN201733368U (en) | Contact image sensor | |
| CN101895663B (en) | Contact type image sensor | |
| CN203632743U (en) | Image acquisition apparatus | |
| CN101526396A (en) | Embedded spectrum and radiation real-time calibration device | |
| CN102279287B (en) | Sub-pixel division coding microscopic imaging device | |
| CN104464076A (en) | Contact type digital image acquisition device | |
| CN107229114A (en) | Multichannel fluorescence detection system based on fiber array | |
| US11769343B2 (en) | Fingerprint sensor, fingerprint module, and terminal device | |
| CN208171874U (en) | A kind of holographic imaging cell detection device focused based on simple lens | |
| CN2876909Y (en) | Laser optical fiber real and fake identification sensor for RMB | |
| CN102692702A (en) | Confocal microscope using laser interference fields | |
| CN109218558A (en) | Image processing method, image processing apparatus, storage medium and processor | |
| CN104215613A (en) | Paper recognition device and optical sensor device | |
| CN102014233A (en) | Contact image sensor | |
| CN203688831U (en) | Lens array device and image reading system employing same | |
| CN201374756Y (en) | Light guiding system for contact-type image sensor | |
| CN201341177Y (en) | Image reading device | |
| CN201563183U (en) | Full-spectrum identifying image sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 264209 Weihai high tech Industrial Development Zone, Shandong Torch Road, No. 159 Applicant after: Weihai Hualing Opto-electronics Co.,Ltd. Address before: 264209 Weihai high tech Industrial Development Zone, Shandong Torch Road, No. 159 Applicant before: Weihai Hualing Optoelectronic Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: WEIHAI HUALING OPTOELECTRONIC CO., LTD. TO: WEIHAI HUALING OPTO-ELECTRONICS CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |