CN213490762U - Disinfection lamp - Google Patents
Disinfection lamp Download PDFInfo
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- CN213490762U CN213490762U CN202022469840.6U CN202022469840U CN213490762U CN 213490762 U CN213490762 U CN 213490762U CN 202022469840 U CN202022469840 U CN 202022469840U CN 213490762 U CN213490762 U CN 213490762U
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Abstract
The utility model provides a disinfection lamp, include: a disinfection light source part; the heat dissipation frame is provided with two opposite ends, the disinfection light source part is arranged at the first end of the heat dissipation frame, and a heat conduction layer is arranged between the heat dissipation frame and the disinfection light source part; and the cooling part is arranged at the second end of the heat dissipation frame and used for cooling the heat dissipation frame. The utility model discloses a disinfection lamps and lanterns disinfect to outside through disinfection light source portion work, especially disinfect to paper currency, the utility model discloses still possess heat radiation frame and be located the heat-conducting layer between heat radiation frame and the disinfection light source portion, can fully give heat radiation frame with the heat transfer that disinfection light source portion produced and dispel the heat through the heat-conducting layer, meanwhile the heat of heat radiation frame is taken away to the cooling part, cools off heat radiation frame for disinfection lamps and lanterns can effectively cool down, have good heat-sinking capability, have guaranteed the light efficiency and the reliability of lamps and lanterns, have prolonged the life of lamps and lanterns.
Description
Technical Field
The utility model relates to a sterilamp equipment technical field particularly, relates to a disinfection lamps and lanterns.
Background
Paper money is in the process of continuous circulation in the market all the time, and is carried by patients with infectious diseases such as influenza, liver diseases, lung diseases and the like, and germs on hands of the patients easily pollute the RMB, so that the people who contact the RMB are infected again, and people pay more and more attention to disinfection and sterilization of the paper money.
Compared with the traditional mercury ultraviolet lamp, the LED ultraviolet lamp has the advantages of low power consumption, high safety and small size. After the LED light source is powered on, about 20% of electric energy is converted into light energy, the rest is converted into heat energy, the temperature of a cavity in the LED lamp can be increased due to the heat energy, and the LED light source is rapidly attenuated due to long-term high-temperature work.
Increase ultraviolet disinfection sterilizing equipment on financial terminal equipment such as all-in-one, automatic teller machine, clear extension, in the currency examine, sterilizing equipment's ultraviolet lamp lights, and to the continuous disinfection of disinfecting of paper currency, the currency count machine generates heat very easily at the operation in-process, and LED lights the back and also can constantly generate heat, causes the inside temperature of currency count machine to continuously rise, and high temperature will cause LED's damage.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a disinfection lamp to solve the problem that the inside heat of disinfection lamp among the prior art is too high and leads to life to reduce.
In order to achieve the above object, the utility model provides a disinfection lamp, include: a disinfection light source part; the heat dissipation frame is provided with two opposite ends, the disinfection light source part is arranged at the first end of the heat dissipation frame, and a heat conduction layer is arranged between the heat dissipation frame and the disinfection light source part; and the cooling part is arranged at the second end of the heat dissipation frame and used for cooling the heat dissipation frame.
Further, the disinfection light source part comprises a substrate and a plurality of ultraviolet LED lamps arranged on the substrate, the ultraviolet LED lamps are divided into a plurality of rows, and the ultraviolet LED lamps in each row are arranged along the length direction of the substrate; gaps are formed between two adjacent ultraviolet LED lamps in the same column, and the ultraviolet LED lamps in one column correspond to the gaps in the other column adjacent to the column one by one.
Furthermore, a heat dissipation cavity is arranged inside the second end of the heat dissipation frame, the heat dissipation cavity extends along the length direction of the heat dissipation frame, and heat dissipation ports are formed at two ends of the heat dissipation frame in the length direction.
Further, the cooling portion includes an air-cooled component, and the air-cooled component is installed in the heat dissipation cavity.
Further, the heat dissipation frame further comprises a heat dissipation fin connected with the bottom wall of the heat dissipation cavity, the heat dissipation fin extends along the length direction of the heat dissipation cavity, and the heat dissipation fin is located between the bottom wall of the heat dissipation cavity and the air cooling assembly.
Furthermore, the radiating fins are multiple and are arranged at intervals along the width direction of the radiating cavity.
Furthermore, a plurality of heat dissipation holes are formed in the heat dissipation sheet.
Further, the air cooling assembly comprises a plurality of fans, the fans are arranged at intervals along the length direction of the heat dissipation cavity, and the side walls of the two sides of the heat dissipation cavity are provided with yielding concave portions to enable the fans to be yielded.
Further, the cooling portion includes the passageway that overflows, overflows the inside that the passageway set up at the second end of heat dissipation frame, is provided with inlet and liquid outlet on the lateral wall of heat dissipation frame, and the inlet is located heat dissipation frame length direction's both ends respectively with the liquid outlet to with overflowing the passageway intercommunication, inlet and coolant liquid feed system intercommunication.
Further, the substrate is an aluminum substrate, the heat dissipation frame is made of metal materials, and the heat conduction layer is heat conduction silicone grease.
Use the technical scheme of the utility model, the utility model discloses a disinfection lamps and lanterns disinfect to outside through disinfection light source portion work, especially disinfect to paper currency, the utility model discloses still possess heat radiation frame and be located the heat-conducting layer between heat radiation frame and the disinfection light source portion, can fully give heat radiation frame with the heat transfer that disinfection light source portion produced through the heat-conducting layer and dispel the heat, the heat of heat radiation frame is taken away to the cooling part simultaneously, cools off heat radiation frame for disinfection lamps and lanterns can effectively cool down, have good heat-sinking capability, have guaranteed the light efficiency and the reliability of lamps and lanterns, have prolonged the life of lamps and lanterns.
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:
figure 1 schematically shows a cross-sectional view of a first embodiment of a disinfection light fixture of the invention;
FIG. 2 schematically illustrates a block diagram of an embodiment of a heat sink of the disinfecting lamp of the present invention;
figure 3 schematically illustrates a cross-sectional view of a second embodiment of the disinfection light of the present invention;
FIG. 4 schematically illustrates a block diagram of a second embodiment of the disinfecting lamp of the present invention;
fig. 5 is a schematic diagram showing a structure of an embodiment of the disinfecting light source unit of the disinfecting lamp according to the present invention.
Wherein the figures include the following reference numerals:
10. a disinfection light source part; 11. a substrate; 12. an ultraviolet LED lamp; 20. a heat dissipation frame; 21. a heat dissipation cavity; 22. an air-cooled assembly; 23. a heat sink; 231. heat dissipation holes; 24. a yielding concave part; 25. an overflow channel; 26. a liquid inlet; 27. a liquid outlet; 30. a cooling section; 40. a thermally conductive layer.
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.
As described in the background art, the LED ultraviolet lamp has advantages of less power consumption, high safety, and small size, compared with the conventional mercury ultraviolet lamp. After the LED light source is powered on, about 20% of electric energy is converted into light energy, the rest is converted into heat energy, the temperature of a cavity in the LED lamp can be increased due to the heat energy, and the LED light source is rapidly attenuated due to long-term high-temperature work. Increase ultraviolet disinfection sterilizing equipment on financial terminal equipment such as all-in-one, automatic teller machine, clear extension, in the currency examine, sterilizing equipment's ultraviolet lamp lights, and to the continuous disinfection of disinfecting of paper currency, the currency count machine generates heat very easily at the operation in-process, and LED lights the back and also can constantly generate heat, causes the inside temperature of currency count machine to continuously rise, and high temperature will cause LED's damage.
In order to solve the above problems, referring to fig. 1 to 5, an embodiment of the present invention provides a disinfection lamp, which includes a disinfection light source part 10, a heat dissipation frame 20 and a cooling part 30, wherein the heat dissipation frame 20 has two opposite ends, the disinfection light source part 10 is installed at a first end of the heat dissipation frame 20, and a heat conduction layer 40 is disposed between the heat dissipation frame 20 and the disinfection light source part 10; the cooling part 30 is provided at the second end of the heat dissipation frame 20 for cooling the heat dissipation frame 20. The utility model discloses a disinfection lamps and lanterns disinfect to outside through disinfection light source portion work, especially disinfect to paper currency, the utility model discloses still possess heat radiation frame and be located the heat-conducting layer between heat radiation frame and the disinfection light source portion, can fully give heat radiation frame with the heat transfer that disinfection light source portion produced and dispel the heat through the heat-conducting layer, meanwhile the heat of heat radiation frame is taken away to the cooling part, cools off heat radiation frame for disinfection lamps and lanterns can effectively cool down, have good heat-sinking capability, have guaranteed the light efficiency and the reliability of lamps and lanterns, have prolonged the life of lamps and lanterns.
As shown in fig. 5, specifically, the disinfection light source unit 10 in the present embodiment includes a substrate 11 and a plurality of ultraviolet LED lamps 12 disposed on the substrate 11, the plurality of ultraviolet LED lamps 12 are divided into two rows, and the plurality of ultraviolet LED lamps 12 in each row are disposed along a length direction of the substrate 11; gaps are formed between two adjacent ultraviolet LED lamps in the same column, and the plurality of ultraviolet LED lamps 12 in one column correspond one-to-one to the plurality of gaps in another column adjacent to the column. The heat that such crisscross arranged can make ultraviolet LED lamp distribute evenly on the base plate, and abundant protection ultraviolet LED lamp can not cause the life-span to hang down because of the high temperature, and crisscross arrangement of ultraviolet LED lamp simultaneously can make the light that sends shine the surface of paper currency evenly, and each place on the paper currency can both receive the illumination of sufficient dose, kills the germ, avoids individual place because of the dose of ultraviolet is low, can not reach bactericidal effect. The top of the heat dissipation frame in the embodiment is provided with an installation concave part, the substrate is installed in the installation concave part, and the disinfection lamp further comprises a transparent plate which is covered above the installation concave part.
The LED lamp power device is characterized in that the substrate is made of a material with a high heat conductivity coefficient, such as an aluminum substrate, a ceramic substrate and a copper substrate, preferably, the substrate adopted in the embodiment is the aluminum substrate, the aluminum substrate is a metal-based copper-clad plate with a good heat dissipation function, the aluminum substrate is composed of a circuit layer, a heat conduction insulating layer and a metal base layer, the surface of the LED lamp power device is attached to the circuit layer, heat locally generated by a PCB during operation can be quickly conducted to the whole PCB through the metal base layer, and then conducted to the frame through the heat conduction layer, and the heat conductivity coefficient of the aluminum substrate is as high as more than 2.2W/m.K, which means that. Compared with common plastics, the metal material has a higher heat conductivity coefficient, the heat dissipation frame in this embodiment is made of a metal material, or a heat conduction plastic with a better heat conduction performance may be adopted, the heat dissipation frame 20 is made of a metal material, the heat conduction layer is used for conducting heat emitted by the ultraviolet LED lamp to the heat dissipation frame, and heat conduction silicone grease or heat conduction adhesive tape, preferably, heat conduction silicone grease, may be used. If the substrate and the heat dissipation frame are directly contacted, even if two planes with very smooth surfaces are contacted with each other, gaps are formed, and air in the gaps is poor heat conductor and can obstruct the heat transfer between the two objects. The heat conducting layer in the embodiment uses the heat conducting silicone grease which is uniformly coated on the surface of the substrate contacted with the heat radiating frame, the substrate is installed on the heat radiating frame through screws, and the substrate and the heat radiating frame can be tightly contacted together due to the filling of the heat conducting silicone grease, so that the heat emitted by the LED and the like can be continuously conducted to the heat radiating frame, the temperature of the LED lamp can be kept at a level capable of stably working, and the service life of the LED lamp is prolonged.
After the ultraviolet LED lamp works, a large amount of heat is emitted, the heat dissipation frame absorbs the heat conducted from the substrate, and in order to facilitate the heat dissipation of the heat dissipation frame, a heat dissipation cavity 21 is disposed inside the second end of the heat dissipation frame 20 in the embodiment, the heat dissipation cavity 21 extends along the length direction of the heat dissipation frame 20, and heat dissipation ports are formed at two ends of the heat dissipation frame 20 in the length direction. Through the setting in heat dissipation chamber, the second end of heat dissipation frame has formed the air flue, and the steam of being convenient for is discharged.
In order to rapidly dissipate the heat by convection, the cooling part 30 in this embodiment includes an air-cooled assembly 22, and the air-cooled assembly 22 is installed in the heat dissipation chamber 21. Blow through the air-cooled subassembly, blow out the steam in the air flue for the radiating rate of heat dissipation frame.
In order to increase the heat dissipation area of the heat dissipation frame, the heat dissipation frame 20 in this embodiment further includes a heat dissipation fin 23 connected to the bottom wall of the heat dissipation cavity 21, the heat dissipation fin 23 extends along the length direction of the heat dissipation cavity 21, and the heat dissipation fin 23 is located between the bottom wall of the heat dissipation cavity 21 and the air-cooled component 22. The air-cooled assembly accelerates the air flow inside the heat dissipation chamber 21 by the continuous blowing.
Preferably, the number of the heat dissipation fins 23 in the present embodiment is plural, and the plural heat dissipation fins 23 are arranged at intervals in the width direction of the heat dissipation chamber 21.
The heat dissipation fins 23 in this embodiment are provided with a plurality of heat dissipation holes 231, through which hot air can rapidly exchange heat with the outside air to take away heat accumulated thereon, thereby achieving heat dissipation by forced convection. The heat dissipation area is mainly determined by the surface area of the heat dissipation fins in the process of convection heat dissipation, and the larger the surface area is, the better the heat dissipation effect is; the smaller the surface area, the poorer the heat dissipation effect. Therefore, the LED lamps are arranged in a staggered mode, the aluminum substrate with a good heat dissipation function is adopted, and the heat dissipation frame with the heat dissipation fins, the air cooling assembly and the heat dissipation cavity are matched with each other, so that the problems of poor heat dissipation performance and the like are solved, and the service life of the equipment is prolonged. Preferably, part of the heat dissipation holes may be intensively arranged in the region corresponding to the fan.
In order to improve the heat dissipation efficiency, the air cooling assembly 22 in this embodiment includes a plurality of fans, the fans are disposed at intervals along the length direction of the heat dissipation cavity 21, and the side walls of the two sides of the heat dissipation cavity 21 are provided with yielding concave portions 24 to yield the fans. During operation, part of the plurality of fans can be rotated to blow air or all the fans can blow air according to the temperature of the disinfection lamp.
The utility model discloses a second embodiment, cooling portion 30 in this embodiment is including overflowing passageway 25, overflows passageway 25 and sets up the inside at heat dissipation frame 20's second end, is provided with inlet 26 and liquid outlet 27 on heat dissipation frame 20's the lateral wall, and inlet 26 and liquid outlet 27 are located heat dissipation frame 20 length direction's both ends respectively to with overflowing passageway 25 intercommunication, inlet 26 and coolant liquid supply system intercommunication. After the LED lamp works, a large amount of heat is emitted, the heat dissipation frame absorbs the heat conducted by the substrate and the heat conduction layer, a controller located in an external cooling liquid control system works to compress cooling liquid and transmits the cooling liquid into the flow passage through the liquid inlet, the heat of the heat dissipation frame is fully absorbed, the water pump pushes the liquid to flow through the liquid outlet and take away the heat, the heat is dissipated circularly, the ultraviolet LED lamp is ensured to be continuously lighted on, not only can the ultraviolet sterilization effect of high intensity be provided, but also the work of the ultraviolet LED lamp in a certain temperature range can be ensured, and the temperature cannot be too high. The water-cooling heat dissipation is adopted, the heat dissipation efficiency is high, the specific heat capacity and the high heat of water can be fully absorbed, the running process is quieter and cleaner, the luminous efficiency of the disinfection lamp is increased, and the service life of the disinfection lamp is prolonged.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
the utility model discloses a disinfection lamps and lanterns disinfect to outside through disinfection light source portion work, especially disinfect to paper currency, the utility model discloses still possess heat radiation frame and be located the heat-conducting layer between heat radiation frame and the disinfection light source portion, can fully give heat radiation frame with the heat transfer that disinfection light source portion produced and dispel the heat through the heat-conducting layer, meanwhile the heat of heat radiation frame is taken away to the cooling part, cools off heat radiation frame for disinfection lamps and lanterns can effectively cool down, have good heat-sinking capability, have guaranteed the light efficiency and the reliability of lamps and lanterns, have prolonged the life of lamps and lanterns.
It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, 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.
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 forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
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 terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are explicitly contemplated herein.
The present disclosure in accordance with certain embodiments described herein is not to be limited in scope by the specific aspects illustrated. As will be apparent to those skilled in the art, many modifications and variations are possible without departing from the spirit and scope of the disclosure. Functionally equivalent methods and apparatuses, in addition to those enumerated herein, will be apparent to those skilled in the art from the foregoing description, within the scope of the present disclosure. Such modifications and variations are intended to fall within the scope of the appended claims. The disclosure is to be limited only by the terms of the appended claims, along with the full scope of equivalents to which such claims are entitled. It is to be understood that this disclosure is not limited to particular methods, reagents, compounds, compositions or biological systems, which can, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
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. A disinfecting light fixture, comprising:
a disinfection light source unit (10);
the heat dissipation frame (20), the heat dissipation frame (20) has two opposite ends, the disinfection light source part (10) is installed at the first end of the heat dissipation frame (20), and a heat conduction layer (40) is arranged between the heat dissipation frame (20) and the disinfection light source part (10);
a cooling portion (30), the cooling portion (30) being disposed at a second end of the heat dissipation frame (20) for cooling the heat dissipation frame (20).
2. The disinfection lamp set according to claim 1, wherein the disinfection light source unit (10) includes a base plate (11) and a plurality of ultraviolet LED lamps (12) disposed on the base plate (11), the plurality of ultraviolet LED lamps (12) are divided into a plurality of rows, and the plurality of ultraviolet LED lamps (12) in each row are disposed along a length direction of the base plate (11); gaps are formed between two adjacent ultraviolet LED lamps in the same column, and the ultraviolet LED lamps (12) in one column correspond to the gaps in the other column adjacent to the column one by one.
3. A disinfection lamp as claimed in claim 1, wherein said second end of said heat dissipation frame (20) is internally provided with a heat dissipation chamber (21), said heat dissipation chamber (21) extends along the length direction of said heat dissipation frame (20), and a heat dissipation opening is formed at both ends of said heat dissipation frame (20) in the length direction.
4. A disinfection light fixture as claimed in claim 3, characterized in that said cooling part (30) comprises an air-cooled assembly (22), said air-cooled assembly (22) being mounted in said heat dissipation chamber (21).
5. Disinfection light fixture according to claim 4, characterised in that the heat dissipation frame (20) further comprises fins (23) connected to the bottom wall of the heat dissipation chamber (21), the fins (23) extending in the length direction of the heat dissipation chamber (21), the fins (23) being located between the bottom wall of the heat dissipation chamber (21) and the air-cooled component (22).
6. A disinfection lamp as claimed in claim 5, characterized in that said heat sink (23) is plural, said plural heat sinks (23) being arranged at intervals along the width direction of said heat dissipation chamber (21).
7. A disinfection light fixture as claimed in claim 5, characterized in that said heat sink (23) is provided with a plurality of heat dissipation apertures (231).
8. A disinfection lamp as claimed in claim 4, wherein said air-cooled assembly (22) comprises a plurality of fans, said fans are arranged along the length direction of said heat dissipation chamber (21) at intervals, and the side walls of both sides of said heat dissipation chamber (21) are provided with abdicating recesses (24) for abdicating said fans.
9. The disinfection lamp as claimed in claim 1, wherein the cooling portion (30) includes an overflow channel (25), the overflow channel (25) is disposed inside the second end of the heat dissipation frame (20), a liquid inlet (26) and a liquid outlet (27) are disposed on a side wall of the heat dissipation frame (20), the liquid inlet (26) and the liquid outlet (27) are respectively located at two ends of the heat dissipation frame (20) in a length direction and are communicated with the overflow channel (25), and the liquid inlet (26) is communicated with a cooling liquid supply system.
10. A disinfection lamp as claimed in claim 2, characterized in that said base plate (11) is an aluminum base plate, said heat-dissipating frame (20) is a metal material, and said heat-conducting layer (40) is a heat-conducting silicone grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022469840.6U CN213490762U (en) | 2020-10-30 | 2020-10-30 | Disinfection lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022469840.6U CN213490762U (en) | 2020-10-30 | 2020-10-30 | Disinfection lamp |
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| Publication Number | Publication Date |
|---|---|
| CN213490762U true CN213490762U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022469840.6U Active CN213490762U (en) | 2020-10-30 | 2020-10-30 | Disinfection lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114650634A (en) * | 2022-03-02 | 2022-06-21 | 中国科学院半导体研究所 | Ultraviolet LED module |
| DE102021004924A1 (en) | 2021-09-30 | 2023-03-30 | Giesecke+Devrient Currency Technology Gmbh | Device for illuminating value documents, sensor for checking value documents and value document processing system |
-
2020
- 2020-10-30 CN CN202022469840.6U patent/CN213490762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021004924A1 (en) | 2021-09-30 | 2023-03-30 | Giesecke+Devrient Currency Technology Gmbh | Device for illuminating value documents, sensor for checking value documents and value document processing system |
| CN114650634A (en) * | 2022-03-02 | 2022-06-21 | 中国科学院半导体研究所 | Ultraviolet LED module |
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