CN212677227U - Image sensor with a plurality of pixels - Google Patents
Image sensor with a plurality of pixels Download PDFInfo
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- CN212677227U CN212677227U CN202021676290.9U CN202021676290U CN212677227U CN 212677227 U CN212677227 U CN 212677227U CN 202021676290 U CN202021676290 U CN 202021676290U CN 212677227 U CN212677227 U CN 212677227U
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Abstract
The utility model provides an image sensor. The image sensor comprises at least one first detection part, the first detection part comprises a first shell, the first shell is provided with a first detection port, and the first detection part further comprises: a lens; the light sensing part is arranged at one end of the lens far away from the first detection port, and the axis of the light sensing part is superposed with the axis of the lens; the sensor substrate is arranged at one end of the light sensing part far away from the lens, and the light sensing part is in signal connection with the sensor substrate; a first light source; and the connecting line of the first light source and the second light source is mutually vertical to the connecting line of the lens and the light sensing part, and at least one of the first light source and the second light source can emit ultraviolet light in a UVC wave band. The utility model provides an among the prior art have the complicated problem of image sensor structure of disinfection function.
Description
Technical Field
The utility model relates to an image sensor equipment field particularly, relates to an image sensor.
Background
The contact image sensor is widely applied to fax machines, scanners, multifunctional integrated machines, automatic teller machines, sorting machines, bill scanners and other equipment, and is used for carrying out image acquisition, anti-counterfeiting mark identification and the like on original images. With the progress of anti-counterfeit technology and the difference between currencies, the means and methods for identifying anti-counterfeit labels are also continuously changing and improving. Among them, the kinds of anti-counterfeit labels needing to be identified by ultraviolet light are increasing.
In addition, money, which is a highly-circulated article, has a high possibility of carrying germs, and also has a large range of spreading diseases due to its high circulation. Therefore, it is essential to sterilize the money in time.
Although some financial terminal devices such as the existing cash register, the existing cash checker and the like also have the functions of checking the cash, reading the image, and sterilizing, the image reading, the anti-counterfeiting identification and the sterilization are respectively carried out by different devices, so that the structure is complex, and the cost is higher.
Therefore, the image sensor with the sterilization function has a complicated structure in the related art.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide an image sensor to solve the problem of the image sensor with a sterilization function in the prior art that has a complicated structure.
In order to achieve the above object, according to an aspect of the present invention, there is provided an image sensor including at least one first detection portion, the first detection portion including a first housing, the first housing having a first detection port, the first detection portion further including: a lens; the light sensing part is arranged at one end of the lens far away from the first detection port, and the axis of the light sensing part is superposed with the axis of the lens; the sensor substrate is arranged at one end of the light sensing part far away from the lens, and the light sensing part is in signal connection with the sensor substrate; a first light source; and the first light source and the second light source are respectively arranged at two sides of the lens, and at least one of the first light source and the second light source can emit ultraviolet light in a UVC wave band.
Further, the first light source can emit at least one of red light, green light, blue light, infrared light and ultraviolet light in UVA wave band, and the second light source can emit ultraviolet light in UVC wave band; or the second light source can emit at least one of red light, green light, blue light, infrared light and ultraviolet light in UVA wave band, and the first light source can emit ultraviolet light in UVC wave band.
Further, the first light source and the second light source are both array light sources; or the first light source and the second light source are both rod-shaped light sources; or the first light source is an array light source, and the second light source is a rod-shaped light source; or the first light source is a rod-shaped light source, and the second light source is an array light source.
Furthermore, the first shell is also provided with at least one heat dissipation channel, and the heat dissipation channel is arranged on one side of the first light source or the second light source, which is far away from the first detection port.
Further, the first detection part further comprises a light-transmitting plate, and the light-transmitting plate is covered on the first detection port.
Further, the light-transmitting plate is made of quartz glass.
Further, the image sensor comprises two first detection parts which are arranged oppositely, and a detection gap is arranged between the two first detection parts.
Further, the first detection portion further includes a third light source capable of emitting at least one of red light, green light, blue light, infrared light, ultraviolet light in a UVA band, and ultraviolet light in a UVC band.
Furthermore, the number of the first detection parts is two, the two first detection parts are arranged oppositely, the third light source of the first detection part is arranged oppositely to the lens of the second first detection part, and the lens of the first detection part is arranged oppositely to the third light source of the second first detection part.
Further, the image sensor further comprises a second detection portion, the second detection portion is arranged opposite to the first detection portion, the second detection portion comprises a second shell, the second shell is provided with a second detection port, the second detection port is arranged opposite to the first detection port, the second detection portion further comprises a fourth light source arranged inside the second shell, the fourth light source is an array light source or a rod-shaped light source, the fourth light source can emit at least one of red light, green light, blue light, infrared light, ultraviolet light in UVA wave bands and ultraviolet light in UVC wave bands, and the fourth light source and a lens of the first detection portion which is arranged opposite are located on the same axis.
Use the technical scheme of the utility model, image sensor in this application includes at least one first detection portion, and first detection portion includes first casing, and first casing has first detection mouth, and first detection portion still includes lens, sensitization portion, sensor substrate board, first light source and second light source. The light sensing part is arranged at one end of the lens far away from the first detection port, and the axis of the light sensing part is superposed with the axis of the lens; the sensor substrate is arranged at one end of the light sensing part far away from the lens, and the light sensing part is in signal connection with the sensor substrate; the first light source and the second light source are respectively arranged on two sides of the lens, and at least one of the first light source and the second light source can emit ultraviolet light in UVC wave band.
When the image sensor with the structure is used, light emitted by the first light source and the second light source irradiates an original to be scanned, such as paper money, and light reflected by the original enters the lens and is collected on the light sensing part, so that the identification of the anti-counterfeiting mark of the original is completed. Also, in this process, since at least one of the first light source and the second light source can emit ultraviolet light of the UVC band, the original can be sterilized. Therefore, the image sensor in the application effectively solves the problem that the image sensor with the disinfection function in the prior art is complex in structure.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of an image sensor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a structure of an image sensor according to a first embodiment;
fig. 3 is a schematic structural diagram of an image sensor according to a second embodiment;
fig. 4 is a schematic structural diagram showing an image sensor in the third embodiment;
FIG. 5 is a schematic structural view showing an image sensor according to a fourth embodiment;
fig. 6 shows a schematic structural diagram of an image sensor in the fifth embodiment.
Wherein the figures include the following reference numerals:
10. a first detection unit; 11. a first housing; 12. a lens; 13. a light sensing section; 14. a sensor substrate; 15. a first light source; 16. a second light source; 17. a heat dissipation channel; 18. a light-transmitting plate; 19. a third light source; 20. a second detection unit; 21. a second housing; 22. and a fourth light source.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.
In order to solve the problem that an image sensor with a disinfection function in the prior art is complex in structure, the application provides an image sensor.
In the following embodiments, a banknote counter having an image sensor according to the present application will be described.
As shown in fig. 1 to 6, the image sensor of the present application includes at least one first detection portion 10, the first detection portion 10 includes a first housing 11, the first housing 11 has a first detection port, and the first detection portion 10 further includes a lens 12, a light sensing portion 13, a sensor substrate 14, a first light source 15, and a second light source 16. The light sensing part 13 is arranged at one end of the lens 12 far away from the first detection port, and the axis of the light sensing part 13 is superposed with the axis of the lens 12; the sensor substrate 14 is arranged at one end of the light-sensing part 13 far away from the lens 12, and the light-sensing part 13 is in signal connection with the sensor substrate 14; the first light source 15 and the second light source 16 are respectively disposed at both sides of the lens 12, and at least one of the first light source 15 and the second light source 16 can emit ultraviolet light of UVC band.
When the image sensor having the above-described configuration is used, light emitted from the first light source 15 and the second light source 16 is irradiated onto an original to be scanned, such as a banknote, and light reflected from the original enters the lens 12 and is collected on the light receiving portion 13, thereby completing recognition of the forgery-preventing mark of the original. Also, in this process, since at least one of the first light source 15 and the second light source 16 can emit ultraviolet light of the UVC band, the original can be sterilized. Therefore, the image sensor in the application effectively solves the problem that the image sensor with the disinfection function in the prior art is complex in structure.
It should be noted that, in one specific embodiment of the present application, the first light source 15 and the second light source 16 are disposed on the left and right sides of the lens 12 in the horizontal direction.
Specifically, the first light source 15 can emit at least one of red light, green light, blue light, infrared light, and ultraviolet light in a UVA band, and the second light source 16 can emit ultraviolet light in a UVC band; or the second light source 16 can emit at least one of red light, green light, blue light, infrared light, ultraviolet light in the UVA band, and the first light source 15 can emit ultraviolet light in the UVC band. Through the arrangement, the identification function of the image sensor on the anti-counterfeiting mark of the original manuscript can be ensured, and the disinfection function of the image sensor on the original manuscript can also be ensured.
In one embodiment of the present application, the sensor substrate 14 is a substrate on which a linear array of photosensitive integrated circuits ICs is mounted.
It should be noted that, in an embodiment of the present application, the first light source 15, the second light source 16, the third light source 19, and the fourth light source 22 are respectively provided with LED chips with multiple wavelengths, so that the first light source 15, the second light source 16, the third light source 19, and the fourth light source 22 can emit multiple color lights.
Optionally, the first light source 15 and the second light source 16 are both array light sources; or both the first light source 15 and the second light source 16 are rod-shaped light sources; or the first light source 15 is an array light source and the second light source 16 is a rod-shaped light source; alternatively, the first light source 15 is a rod light source and the second light source 16 is an array light source.
As shown in fig. 2, in the first embodiment of the present application, the first light source 15 and the second light source 16 are both array light sources, which can further improve the sterilization effect and the banknote-feeding speed.
As shown in fig. 3, in the second embodiment of the present application, the first light source 15 and the second light source 16 are both rod-shaped light sources, so that the number of UVC ultraviolet LEDs can be greatly reduced and the cost can be reduced on the premise of satisfying the functions of image reading, counterfeit detection and disinfection. The method is suitable for places with lower scanning speed requirements and strict cost control requirements.
In one embodiment of the present application, during the image scanning of the banknote using uv light in the UVC band, since the uv light irradiates every corner of the surface of the banknote, taking a 300DPI resolution product as an example, the step pitch of each line is 0.08mm, and the length of the banknote is about 156mm, the image sensor can move about 0.08X156 mm to 12.5mm per scanning step2＝0.125cm2According to the introduction of related data: killing common bacteriaIn vivo, the irradiation dose should be 10000uw.s/cm2(ii) a The bacterial spore killing amount should reach 100000uw.s/cm2(ii) a The resistance of the virus to ultraviolet rays is between that of a bacterial propagule and a spore; the fungus brood is stronger in resistance than bacterial spore, and is sometimes irradiated to 600000uw.s/cm2According to the power of the UVC ultraviolet light LED array and the parameters, the disinfection and sterilization effects can be calculated, the shortest time required by the image sensor when scanning one step pitch can be determined, and the money walking speed of equipment such as a money counter can be determined according to the calculated time. The higher the power of the UVC ultraviolet array is, the better the sterilization effect is, and the faster the money walking speed can be.
Specifically, the first housing 11 further has at least one heat dissipation channel 17, and the heat dissipation channel 17 is disposed on a side of the first light source 15 or the second light source 16 away from the first detection port. When the power of the first light source 15 and the second light source 16 is large, the first light source 15 and the second light source 16 generate a large amount of heat, and thus the overall temperature of the image sensor can be reduced by providing the heat dissipation channel 17. The heat dissipation channel 17 can be connected with external cooling water or compressed air through a quick connector or in other ways, and cooling is performed through the flowing of the cooling water or air.
In one embodiment of the present application, the first detecting portion 10 further includes a transparent plate 18, and the transparent plate 18 covers the first detecting opening. By such an arrangement, the inside of the first housing 11 can be sealed, thereby prolonging the service life of the image sensor.
Preferably, the light-transmitting plate 18 is made of quartz glass. Since the quartz glass has the lowest ultraviolet light absorption rate in the UVC band, the loss of ultraviolet light can be reduced.
As shown in fig. 4, in the third embodiment of the present application, the image sensor includes two first detection portions 10, the two first detection portions 10 are disposed opposite to each other, and a detection gap is provided between the two first detection portions 10. Through setting up like this, can read the image information on two surfaces of paper currency simultaneously, discernment false proof mark also can kill the bacterium on two surfaces of paper currency simultaneously. Meanwhile, the light source can be fully utilized, part of UVC ultraviolet light rays passing through the paper money can kill bacteria on the other surface. Resources are saved, and working efficiency is improved.
As shown in fig. 5, in a fourth embodiment of the present application, in addition to the third embodiment, the first detection portion 10 further includes a third light source 19, and the third light source 19 can emit at least one of red light, green light, blue light, infrared light, ultraviolet light in a UVA band, and ultraviolet light in a UVC band.
Preferably, the third light source 19 can emit red light, green light, blue light, infrared light, ultraviolet light of UVA band and ultraviolet light of UVC band, and by doing so, not only the reflected image but also the transmitted image can be read. Meanwhile, ultraviolet light in a UVC wave band also exists in the transmission light source, so that the irradiation time of disinfection and sterilization is increased, but the total scanning time is not influenced. Therefore, the efficiency of disinfection and sterilization is improved, and the sterilization effect is enhanced.
Specifically, there are two first detection portions 10, two first detection portions 10 are disposed opposite to each other, the third light source 19 of the first detection portion 10 is disposed opposite to the lens 12 of the second first detection portion 10, and the lens 12 of the first detection portion 10 is disposed opposite to the third light source 19 of the second first detection portion 10.
As shown in fig. 6, in the fifth embodiment of the present application, the image sensor further includes a second detecting portion 20, the second detecting portion 20 is disposed opposite to the first detecting portion 10, the second detecting portion 20 includes a second housing 21, the second housing 21 has a second detecting port, the second detecting port is disposed opposite to the first detecting port, the second detecting portion 20 further includes a fourth light source 22 disposed inside the second housing 21, the fourth light source 22 is an array light source or a rod-shaped light source, the fourth light source 22 can emit at least one of red light, green light, blue light, infrared light, ultraviolet light in a UVA band and ultraviolet light in a UVC band, and the fourth light source 22 is located on the same axis line with the lens 12 of the first detecting portion 10 disposed opposite to the fourth light source.
Preferably, the fourth light source 22 is capable of emitting ultraviolet light in the UVC band. With this arrangement, the light emitted from the fourth light source 22 irradiates the original, and the counterfeit-prevention mark on the original, which can be excited only by the short-wavelength ultraviolet light, is excited to emit light, and the light penetrates through the original, enters the lens 12 of the first detection portion 10, and is converged on the light-sensing portion 13 of the first detection portion 10, so as to obtain the counterfeit-prevention mark image excited by the short-wavelength ultraviolet light.
In the present application, when the first light source 15, the second light source 16, the third light source 19, and the fourth light source 22 are rod-shaped light sources, they have light guide rods. And when the first light source 15, the second light source 16, the third light source 19, and the fourth light source 22 are array light sources, they are linear array light sources composed in a length direction.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
1. the problem that the image sensor with the disinfection function in the prior art is complex in structure is effectively solved;
2. the structure is simple;
3. the performance is stable.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An image sensor, characterized in that it comprises at least one first detection portion (10), said first detection portion (10) comprising a first housing (11), said first housing (11) having a first detection opening, said first detection portion (10) further comprising:
a lens (12);
the light sensing part (13), the light sensing part (13) is arranged at one end of the lens (12) far away from the first detection port, and the axis of the light sensing part (13) is superposed with the axis of the lens (12);
the sensor substrate (14), the sensor substrate (14) is arranged at one end of the light-sensing part (13) far away from the lens (12), and the light-sensing part (13) is in signal connection with the sensor substrate (14);
a first light source (15);
a second light source (16), the first light source (15) and the second light source (16) being respectively disposed at both sides of the lens (12), and at least one of the first light source (15) and the second light source (16) being capable of emitting ultraviolet light of a UVC band.
2. The image sensor of claim 1,
the first light source (15) is capable of emitting at least one of red light, green light, blue light, infrared light, ultraviolet light in the UVA band, and the second light source (16) is capable of emitting ultraviolet light in the UVC band; or
The second light source (16) is capable of emitting at least one of red, green, blue, infrared, UVA band of ultraviolet light, and the first light source (15) is capable of emitting UVC band of ultraviolet light.
3. The image sensor of claim 1,
the first light source (15) and the second light source (16) are both array light sources; or
The first light source (15) and the second light source (16) are both rod-shaped light sources; or
The first light source (15) is an array light source, and the second light source (16) is a rod-shaped light source; or
The first light source (15) is a rod-shaped light source, and the second light source (16) is an array light source.
4. The image sensor according to claim 1, characterized in that the first housing (11) further has at least one heat dissipation channel (17), the heat dissipation channel (17) being arranged on a side of the first light source (15) or the second light source (16) remote from the first detection opening.
5. The image sensor according to claim 1, wherein the first detecting portion (10) further includes a light transmitting plate (18), and the light transmitting plate (18) is provided to cover the first detecting opening.
6. The image sensor according to claim 5, characterized in that the light-transmitting plate (18) is made of quartz glass.
7. The image sensor according to any one of claims 1 to 6, wherein the image sensor comprises two first detection parts (10), wherein the two first detection parts (10) are oppositely arranged, and a detection gap is arranged between the two first detection parts (10).
8. The image sensor according to any one of claims 1 to 6, wherein the first detection portion (10) further comprises a third light source (19), the third light source (19) being capable of emitting at least one of red light, green light, blue light, infrared light, ultraviolet light in the UVA band and ultraviolet light in the UVC band.
9. The image sensor according to claim 8, wherein the number of the first detecting portions (10) is two, two of the first detecting portions (10) are disposed to face each other, the third light source (19) of a first one of the first detecting portions (10) is disposed to face the lens (12) of a second one of the first detecting portions (10), and the lens (12) of a first one of the first detecting portions (10) is disposed to face the third light source (19) of the second one of the first detecting portions (10).
10. The image sensor according to any one of claims 1 to 6, the image sensor further comprises a second detection part (20), the second detection part (20) is arranged opposite to the first detection part (10), the second detection part (20) includes a second housing (21), the second housing (21) has a second detection port, the second detection port is opposite to the first detection port, the second detection part (20) also comprises a fourth light source (22) arranged in the second shell (21), the fourth light source (22) is an array light source or a rod-shaped light source, the fourth light source (22) can emit at least one of red light, green light, blue light, infrared light, ultraviolet light in UVA wave band and ultraviolet light in UVC wave band, and the fourth light source (22) and the lens (12) of the first detection part (10) which is arranged oppositely are positioned on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021676290.9U CN212677227U (en) | 2020-08-12 | 2020-08-12 | Image sensor with a plurality of pixels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021676290.9U CN212677227U (en) | 2020-08-12 | 2020-08-12 | Image sensor with a plurality of pixels |
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| CN212677227U true CN212677227U (en) | 2021-03-09 |
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| CN202021676290.9U Active CN212677227U (en) | 2020-08-12 | 2020-08-12 | Image sensor with a plurality of pixels |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220377197A1 (en) * | 2021-05-18 | 2022-11-24 | Ricoh Company, Ltd. | Image reading device, image forming apparatus, and feed tray |
| WO2022267862A1 (en) * | 2021-06-25 | 2022-12-29 | 威海华菱光电股份有限公司 | Image sensing apparatus, and image scanning device and scanning method thereof |
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2020
- 2020-08-12 CN CN202021676290.9U patent/CN212677227U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220377197A1 (en) * | 2021-05-18 | 2022-11-24 | Ricoh Company, Ltd. | Image reading device, image forming apparatus, and feed tray |
| US11968341B2 (en) * | 2021-05-18 | 2024-04-23 | Ricoh Company, Ltd. | Image reading device, image forming apparatus, and feed tray comprising a sterilizing light source to sterilize a sheet |
| WO2022267862A1 (en) * | 2021-06-25 | 2022-12-29 | 威海华菱光电股份有限公司 | Image sensing apparatus, and image scanning device and scanning method thereof |
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