阅读说明：本技术 一种通过光纤耦合的紫外led杀菌方法及装置 (Ultraviolet LED sterilization method and device through optical fiber coupling ) 是由 梁旭东 于 2020-05-19 设计创作，主要内容包括：本发明公开了一种通过光纤耦合的紫外LED杀菌方法,包括如下步骤：S1：封装好的紫外LED上安装透镜以及准直器；S2：通过准直器出来的紫外LED光能够接近准直的平行光；S3：多束光纤耦合准直后的平行光按照平行线状排列安装；S4：平行线状排列的紫外LED耦合光源可以做成杀菌消毒器。本发明具有以下有益效果：(1)可以安装在多种杀菌消毒装置上；(2)近距离和远距离都可以实现高效杀菌消毒,应用场景被无限拓宽；(3)发散的LED光经过光纤耦合成准直平行光,简单易行；(4)所需的透镜、准直器、光线集束器、光线分路器容易获得；(5)光纤耦合后的紫外LED发光强度损失非常小；(6)远距离光衰较少,可以应用在诸多大空间杀菌消毒领域。(The invention discloses an ultraviolet LED sterilization method through optical fiber coupling, which comprises the following steps: s1: a lens and a collimator are arranged on the packaged ultraviolet LED; s2: the ultraviolet LED light coming out of the collimator can be close to collimated parallel light; s3: a plurality of beams of parallel light after optical fiber coupling collimation are arranged in parallel; s4: the ultraviolet LED coupled light sources arranged in parallel and linear can be made into a sterilizer. The invention has the following beneficial effects: (1) can be arranged on various sterilization and disinfection devices; (2) the high-efficiency sterilization and disinfection can be realized at both short distance and long distance, and the application scene is infinitely widened; (3) the divergent LED light is coupled into collimated parallel light through the optical fiber, and the method is simple and easy to implement; (4) the needed lens, collimator, beam buncher and beam splitter are easy to obtain; (5) the loss of the luminous intensity of the ultraviolet LED after optical fiber coupling is very small; (6) the long-distance light attenuation is less, and the device can be applied to the field of sterilization and disinfection of a plurality of large spaces.)

1. An ultraviolet LED sterilization method through optical fiber coupling is characterized in that: the method comprises the following steps:

s1: a lens and a collimator are arranged on the packaged ultraviolet LED;

s2: the ultraviolet LED light coming out of the collimator can approach collimated parallel light, the LED light coming out of the collimator is coupled into the optical fiber for transmission, the light coming out of the other end of the optical fiber is also collimated parallel light, and the ultraviolet LED light beam after collimation is small and strong in light intensity;

s3: the multiple beams of parallel light after optical fiber coupling collimation in the step S2 are arranged in parallel linear arrangement, so that a linear ultraviolet LED coupling light source can be obtained;

s4: the ultraviolet LED coupled light sources arranged in parallel and linearly in the step S3 can be made into a sterilization disinfector to form surface scanning sterilization and disinfection, and the sterilization disinfector has a long-distance high-efficiency sterilization and disinfection function.

2. The method for sterilizing the ultraviolet LED coupled by the optical fiber according to claim 1, wherein the method comprises the following steps: step S3: one or more collimated parallel lights output by the optical fiber in the step S2 pass through the light beam buncher, a plurality of beams of light are gathered into one beam to form a single beam of collimated parallel light, and the single beam of collimated parallel light from the light beam buncher directly forms a line light source after passing through the Baville prism.

3. The method for sterilizing the ultraviolet LED coupled by the optical fiber according to claim 2, wherein the method comprises the following steps: the single collimated parallel light beam from the beam buncher can be split into a plurality of light beams with the same power through a light splitter.

4. The method for sterilizing the ultraviolet LED coupled by the optical fiber according to claim 1, wherein the method comprises the following steps: one or more lenses are adopted.

5. The method for sterilizing the ultraviolet LED coupled by the optical fiber according to claim 1, wherein the method comprises the following steps: the optical fibers in the multi-beam optical fiber coupling range from 5 to 1000 beams.

6. The method of claim 1The ultraviolet LED sterilization method through optical fiber coupling is characterized in that: the area of the ultraviolet LED chip in the ultraviolet LED is 100 mu m²-10cm²The wavelength of the ultraviolet LED chip is 200nm-320nm, and the power of a single LED chip can be 1 mW-1W.

7. A sterilization device for implementing the ultraviolet LED sterilization method of any one of claims 1 to 6, characterized in that: the sterilizing device is a handheld sterilizing device or a robot moving platform type sterilizing device, and an ultraviolet LED coupling light source is arranged in the sterilizing device.

Technical Field

The invention belongs to the technical field of ultraviolet sterilization, and particularly relates to an ultraviolet LED sterilization method and device through optical fiber coupling.

Background

With the progress of the scientific and technological level and the continuous development of the manufacturing industry, the living standard is also continuously improved, and the physical life and the mental life are greatly improved. However, in recent years, people also encounter an embarrassing situation, and the living standard is improved, but the environment is increasingly worsened. The aggravation of haze, water pollution and the like adds flaws to the increasingly improved living standard, and bacteria and viruses carried by air, water and the like are attacking our health. The new coronavirus appeared in 2019 has been abused globally, the life becomes more fragile and impassable in the face of the virus, the number of deaths caused by the virus is unpredictable, and meanwhile, the world economy suffers unprecedented impact. In order to effectively inhibit viruses, a series of proposals have been made by Weijian Committee of China, and one proposal is also proposed, namely ultraviolet sterilization. The principle of ultraviolet sterilization is that the molecular bonds of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) of bacteria are destroyed by ultraviolet with proper wavelength, so that the original bacterial colony is destroyed and the replication and reproduction of the bacteria are prevented, thereby achieving the purpose of killing the bacteria. The ultraviolet sterilization technology is to directly kill various bacteria, viruses, parasites, algae and other pathogens by utilizing high-intensity ultraviolet irradiation, has broad-spectrum high efficiency and second killing capability on most of bacteria and viruses, and is widely applied to the industries of civil life, medical treatment, production and manufacturing at present.

Due to the high spectrum efficiency of ultraviolet sterilization, various ultraviolet sterilization devices such as ultraviolet sterilization humidifiers, ultraviolet band-aids, ultraviolet sterilization water dispensers, ultraviolet sterilization bags, handheld surface sterilizers and the like are exploded out after a spring. The sterilization devices meet the requirements of people on short-distance surface sterilization, short-distance air sterilization and short-distance water sterilization to a great extent. The sterilization requirement at a short distance is very large, but a plurality of application scenes exist for the sterilization requirement at a long distance in a large space. Due to the exponential attenuation law of ultraviolet light in air and water, the power of the ultraviolet light after long-distance transmission is obviously reduced, and the sterilization efficiency is obviously reduced or even the sterilization effect may not be achieved.

The main obstacle of remote sterilization is the huge loss caused by the scattering and absorption of ultraviolet rays in the process of remote transmission, so that the solution of the problem of remote ultraviolet ray transmission loss is particularly important for the development of ultraviolet sterilization.

Disclosure of Invention

The present invention is directed to a method and an apparatus for sterilizing an ultraviolet LED by optical fiber coupling, so as to solve the above problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: an ultraviolet LED sterilization method through optical fiber coupling is structurally characterized in that: the method comprises the following steps:

s1: a lens and a collimator are arranged on the packaged ultraviolet LED;

s2: the ultraviolet LED light coming out of the collimator can approach collimated parallel light, the LED light coming out of the collimator is coupled into the optical fiber for transmission, the light coming out of the other end of the optical fiber is also collimated parallel light, and the ultraviolet LED light beam after collimation is small and strong in light intensity;

s3: the multiple beams of parallel light after optical fiber coupling collimation in the step S2 are arranged in parallel linear arrangement, so that a linear ultraviolet LED coupling light source can be obtained;

s4: the ultraviolet LED coupled light sources arranged in parallel and linearly in the step S3 can be made into a sterilization disinfector to form surface scanning sterilization and disinfection, and the sterilization disinfector has a long-distance high-efficiency sterilization and disinfection function.

Preferably, step S3: one or more collimated parallel lights output by the optical fiber in the step S2 pass through the light beam buncher, a plurality of beams of light are gathered into one beam to form a single beam of collimated parallel light, and the single beam of collimated parallel light from the light beam buncher directly forms a line light source after passing through the Baville prism.

Preferably, the single collimated parallel beam from the beam buncher may be split into several beams of equal power by an optical splitter.

Preferably, one or more lenses are used.

Preferably, the optical fibers in the multi-beam optical fiber coupling are 5-1000 beams.

Preferably, the area of the ultraviolet LED chip in the ultraviolet LED is 100 μm²-10cm²The wavelength of the ultraviolet LED chip is 200nm-320nm, and the power of a single LED chip can be 1 mW-1W.

Preferably, the sterilization device is a handheld sterilization device or a robot moving platform type sterilization device, and the sterilization device is internally provided with an ultraviolet LED coupling light source.

Compared with the prior art, the invention has the following beneficial effects:

(1) can be arranged on various sterilization and disinfection devices, such as a handheld type, a mobile type and the like;

(2) the high-efficiency sterilization and disinfection can be realized at both short distance and long distance, and the application scene is widened wirelessly;

(3) the divergent LED light is coupled into collimated parallel light through the optical fiber, and the method is simple and easy to implement;

(4) the needed lens, collimator, beam buncher and beam splitter are easy to obtain;

(5) the loss of the luminous intensity of the ultraviolet LED after optical fiber coupling is very small;

(6) because the long-distance light attenuation is less, the sterilization device can be applied to the field of sterilization and disinfection in a plurality of large spaces, and the application of ultraviolet sterilization and disinfection is greatly expanded.

Drawings

FIG. 1 is a schematic view of the ultraviolet LED fiber coupling of the present invention;

FIG. 2 is a schematic diagram of multiple paths of light output after the ultraviolet LED is coupled by optical fibers according to the present invention;

FIG. 3 is a schematic diagram of multiple paths of light exiting from multiple UV LEDs after coupling via optical fibers according to the present invention;

FIG. 4 is a first schematic view of the ultraviolet LED coupled by optical fiber for long-distance irradiation according to the present invention;

FIG. 5 is a schematic diagram of a second embodiment of the present invention in which the UV LED is coupled by an optical fiber and then remotely irradiated;

FIG. 6 is a schematic view of a first hand-held sterilizer with an ultraviolet LED coupled light source according to the present invention;

FIG. 7 is a schematic diagram of a second embodiment of the handheld sterilizer with an ultraviolet LED coupled light source according to the present invention;

FIG. 8 is a third schematic view of the handheld sterilizer with an ultraviolet LED coupled light source according to the present invention;

FIG. 9 is a schematic view of a first portable sterilization device with an ultraviolet LED coupled light source according to the present invention;

FIG. 10 is a schematic diagram of a second embodiment of the portable sterilization device with an ultraviolet LED coupled light source according to the present invention;

FIG. 11 is a graph showing the comparison of the power of the UV radiation according to the present invention;

1: an ultraviolet LED light source; 2: a lens; 3: a light collimator; 4: an optical fiber; 5: a coupled fiber optic head; 6: an ultraviolet LED light collimation system; 7: an optical fiber splitter; 8: a point light source; 9: a line light source; 61: a first handheld sterilization device case; 62: a first hand-held handle; 63: a first ultraviolet LED coupled light source; 71: a second hand-held sterilization device box body; 72: a second hand-held handle; 73: a second ultraviolet LED coupled light source; 81: a third hand-held handle; 82: a third ultraviolet LED light collimation system; 83: a third optical fiber; 84: a third hand-held sterilization device box; 85: a third optical splitter; 86: an ultraviolet LED parallel light source illumination schematic diagram; 91: a fourth ultraviolet LED coupled light source; 92: a first movable sterilization device box body; 93: a fourth optical splitter; 94: a fourth optical fiber; 95: a fourth ultraviolet LED light collimation system; 101: a fifth ultraviolet LED coupled light source; 102: a second movable sterilization device box body; 103: a fifth optical splitter; 104: a fifth optical fiber; 105: and a fifth ultraviolet LED light collimation system.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The invention provides a technical scheme, and provides an ultraviolet LED sterilization method through optical fiber coupling, which comprises the following steps:

s1: a lens and a collimator are arranged on the packaged ultraviolet LED;

s2: the ultraviolet LED light coming out of the collimator can approach collimated parallel light, the LED light coming out of the collimator is coupled into the optical fiber for transmission, the light coming out of the other end of the optical fiber is also collimated parallel light, and the ultraviolet LED light beam after collimation is small and strong in light intensity;

s3: the multiple beams of parallel light after optical fiber coupling collimation in the step S2 are arranged in parallel linear arrangement, so that a linear ultraviolet LED coupling light source can be obtained;

s4: the ultraviolet LED coupled light sources arranged in parallel and linearly in the step S3 can be made into a sterilization disinfector to form surface scanning sterilization and disinfection, and the sterilization disinfector has a long-distance high-efficiency sterilization and disinfection function.

In this embodiment, in step S3: one or more collimated parallel lights output by the optical fiber in the step S2 pass through the light beam buncher, a plurality of beams of light are gathered into one beam to form a single beam of collimated parallel light, and the single beam of collimated parallel light from the light beam buncher directly forms a line light source after passing through the Baville prism.

In this embodiment, the single collimated parallel light beam from the beam buncher may be split into several light beams with the same power by an optical splitter.

In the present embodiment, one or more lenses are used.

In the embodiment, the number of the optical fibers in the multi-beam optical fiber coupling is 5-1000.

In this embodiment, the area of the ultraviolet LED chip in the ultraviolet LED is 100 μm²-10cm²The wavelength of the ultraviolet LED chip is 200nm-320nm, and the power of a single LED chip can be 1 mW-1W.

In this embodiment, a sterilization device for implementing the ultraviolet LED sterilization method is a handheld sterilization device or a robot moving platform type sterilization device, and an ultraviolet LED coupling light source is disposed in the sterilization device.