CN110680937A - Ultraviolet LED light uniformizing device and application thereof - Google Patents
Ultraviolet LED light uniformizing device and application thereof Download PDFInfo
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- CN110680937A CN110680937A CN201911093963.XA CN201911093963A CN110680937A CN 110680937 A CN110680937 A CN 110680937A CN 201911093963 A CN201911093963 A CN 201911093963A CN 110680937 A CN110680937 A CN 110680937A
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- light
- light homogenizing
- cup
- dodging
- film
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- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 22
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000010453 quartz Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001795 light effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Led Device Packages (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
An ultraviolet LED light homogenizing device and application thereof, wherein the ultraviolet LED light homogenizing device comprises a light homogenizing cup which plays a role in homogenizing light; the first-stage step of the dodging cup and the second-stage step of the dodging cup are arranged on the inner wall of the dodging cup; the second light homogenizing film is arranged on the second step of the light homogenizing cup and is used for realizing the first step of light homogenizing; the first light homogenizing film is arranged on the first step of the light homogenizing cup and is used for realizing the second step of light homogenizing; an ultraviolet LED as a light source; and the aluminum substrate is arranged at the bottom of the light homogenizing cup and used for fixing the ultraviolet LED. The ultraviolet LED dodging device disclosed by the invention is small in working current, low in device temperature, simple in implementation process, short in production period, low in cost and capable of being applied to the field needing ultraviolet LED dodging, and can be accepted by most manufacturers and applicable people.
Description
Technical Field
The invention relates to the technical field of ultraviolet LED (light emitting diode) light uniformization, in particular to an ultraviolet LED light uniformization device and application thereof.
Background
With the continuous improvement of the light power of the ultraviolet LED, the ultraviolet LED has been applied to a plurality of fields such as curing, medical treatment, and home appliances, but because the ultraviolet LED is a point light source, the emitted light cannot be uniformly irradiated on a desired position, and the effect is uneven, people are working on the uniform light design of the ultraviolet LED. Ultraviolet ray dodging requirements: the material has strong ultraviolet transmission capability, is resistant to irradiation and is not easy to yellow and deform. However, the ultraviolet LED is different from visible light or infrared light, and a common material, such as a light homogenizing plate used by visible light, cannot transmit ultraviolet light, the best material for transmitting ultraviolet light in the market at present is quartz glass, people design different structures through optics, coarsen the surface of quartz and the like to achieve the purpose of light homogenizing, but quartz is high in cost, difficult to mold and long in production period, and meanwhile, as the thickness of quartz is large, the ultraviolet absorption capacity of quartz is stronger, the amount of ultraviolet light radiated is reduced, in order to compensate for the missing ultraviolet light, the working current of the LED must be increased to increase the light output rate, the temperature of the LED is continuously increased due to the increase of current, the performance of the ultraviolet LED is reduced, so the heat dissipation problem needs to be considered while light homogenizing, most of the complicated schemes only appear in a laboratory, and cannot be applied to the ground to form large-scale production.
In order to better apply the ultraviolet LED in various industries and improve the use effect, it is necessary to invent an ultraviolet LED light uniformizing device, which is characterized in that: the device has the advantages of small working current, low temperature, simple realization process, short production period, low cost and capability of being applied to the field needing ultraviolet LED dodging, and can be accepted by most manufacturers and applicable people.
Disclosure of Invention
In view of the above, one of the main objectives of the present invention is to provide an ultraviolet LED light evening device and applications thereof, so as to at least partially solve at least one of the above technical problems.
In order to achieve the above object, as one aspect of the present invention, there is provided an ultraviolet LED light uniformizing apparatus including:
the light homogenizing cup plays a role in homogenizing light;
the first-stage step of the dodging cup and the second-stage step of the dodging cup are arranged on the inner wall of the dodging cup;
the second light homogenizing film is arranged on the second step of the light homogenizing cup and is used for realizing the first step of light homogenizing;
the first light homogenizing film is arranged on the first step of the light homogenizing cup and is used for realizing the second step of light homogenizing;
an ultraviolet LED as a light source; and
and the aluminum substrate is arranged at the bottom of the light homogenizing cup and used for fixing the ultraviolet LED.
As another aspect of the present invention, there is also provided a use of the light uniformizing apparatus as described above in the field of light uniformization.
Based on the technical scheme, compared with the prior art, the ultraviolet LED dodging device and the application thereof have at least one of the following advantages:
1. the ultraviolet LED dodging device disclosed by the invention is small in working current, low in device temperature, simple in implementation process, short in production period, low in cost and capable of being applied to the field needing ultraviolet LED dodging, and can be accepted by most manufacturers and applicable people;
2. a point light source is emitted by a single ultraviolet LED, the radiation intensity received at the same distance from the LED is inconsistent, the ideal sterilization and disinfection effect cannot be achieved, and in order to realize consistent light emission, uniform light treatment must be carried out. However, after ultraviolet rays, especially deep ultraviolet rays, are emitted through the traditional acrylic material light homogenizing plate, most of light rays are absorbed by the light homogenizing plate and cannot be scattered to the outside, the high-quality quartz material has higher transmittance to the ultraviolet rays, the quartz surface needs to be subjected to optical design and coarsening treatment for realizing light homogenizing, but the quartz is high in price, the cost of ultraviolet application products is increased, and the realization of secondary optical design is also complex;
3. the light homogenizing film made of polytetrafluoroethylene has good transmission capacity to ultraviolet, and the material has stable chemical characteristics, high temperature resistance, acid and alkali resistance, ultraviolet irradiation resistance and price far lower than that of quartz. The polytetrafluoroethylene film is rough in surface, and ultraviolet ray penetrates to be ejected to different directions, changes the pointolite light-emitting form, realizes even light effect, and the absorptive ultraviolet ray of even light film itself is few, and the ultraviolet ray is mostly refracted by even light film and is come out, and some reflection or scattering arrive the reflection cup in addition, after the reflection of many times specular reflection cup, the ultraviolet ray is evenly scattered away more than 95% under the cooperation of even light film and reflection cup, realizes even light effect.
Drawings
Fig. 1 is a schematic structural view of an ultraviolet LED dodging device according to an embodiment of the present invention.
Description of reference numerals:
1. a first light homogenizing film; 2. a second light homogenizing film; 3. a light homogenizing cup; 3-1, a step of the dodging cup; 3-2, two steps of a dodging cup; 4. an ultraviolet LED; 5-aluminum substrate.
Detailed Description
In order that the objects, technical solutions and advantages of the present invention will become more apparent, the present invention will be further described in detail with reference to the accompanying drawings in conjunction with the following specific embodiments.
The invention discloses an ultraviolet LED dodging device, which comprises:
the light homogenizing cup plays a role in homogenizing light;
the first-stage step of the dodging cup and the second-stage step of the dodging cup are arranged on the inner wall of the dodging cup;
the second light homogenizing film is arranged on the second step of the light homogenizing cup and is used for realizing the first step of light homogenizing;
the first light homogenizing film is arranged on the first step of the light homogenizing cup and is used for realizing the second step of light homogenizing;
an ultraviolet LED as a light source; and
and the aluminum substrate is arranged at the bottom of the light homogenizing cup and used for fixing the ultraviolet LED.
The materials adopted by the first light homogenizing film and the second light homogenizing film both comprise polytetrafluoroethylene materials.
Wherein the transmissivity of the first layer of light homogenizing film and the transmissivity of the second layer of light homogenizing film to ultraviolet rays are both 85% to 100%.
Wherein the thickness of the first layer of light homogenizing film and the second layer of light homogenizing film is 0.1-0.2 mm.
The thickness of the first layer of light homogenizing film is smaller than that of the second layer of light homogenizing film.
Wherein, the material that the even light cup adopted includes aluminium or plastics.
Wherein, the even light cup is in a semi-ellipse shape.
Wherein, the inner wall of the light homogenizing cup is plated with a mirror surface reflecting layer.
Wherein the wavelength of the ultraviolet LED is less than 350 nanometers;
and the aluminum substrate is provided with a fluorinated material for improving the reflectivity.
The invention also discloses application of the light homogenizing device in the field of LED light homogenizing.
In one exemplary embodiment, the ultraviolet LED dodging device of the present invention includes: the LED backlight module comprises a first light homogenizing film 1, a second light homogenizing film 2, a light homogenizing cup 3, a first-level step 3-1 of the light homogenizing cup, a second-level step 3-2 of the light homogenizing cup, an ultraviolet LED4 and an aluminum substrate 5.
In some embodiments of the invention, the first and second light spreading films 1, 2 are both of a polytetrafluoroethylene material that reflects ultraviolet light; the even light membrane of second layer is used for elementary change ultraviolet refraction and reflection direction, and the even light of scattering ultraviolet ray realizes first step even light, and the even light membrane of first layer is used for further changing ultraviolet refraction and reflection direction, and further scattering ultraviolet ray realizes the even light of second step.
In some embodiments of the invention, the first and second light homogenizing films 1, 2 have a transmittance of 85% to 100% for reflecting ultraviolet rays;
in some embodiments of the present invention, the thickness of the first and second light homogenizing films 1 and 2 ranges from 0.1mm to 0.2mm, and the thickness of the first light homogenizing film 1 is less than the thickness of the second light homogenizing film 2;
in some embodiments of the invention, the material of the dodging cup 3 is aluminum or plastic, and is in a semi-elliptical shape, and the inner wall is plated with a mirror surface reflecting layer;
in some embodiments of the invention, the light homogenizing cup is provided with a first-level step 3-1 at the edge of the light homogenizing cup, the inner wall of the light homogenizing cup 3 is provided with a second-level step 3-2, and the first-level light homogenizing film 1 and the second-level light homogenizing film 2 are fixed by the two-level steps;
in some embodiments of the invention, the wavelength range of the ultraviolet LED4 is less than 350 nm;
in some embodiments of the present invention, the ultraviolet LED4 is welded on the heat dissipating aluminum substrate 5, the aluminum substrate 5 is adhered with a fluorinated material, and the aluminum substrate 5 is adhered to the bottom of the light homogenizing cup.
The technical solution of the present invention is further illustrated by the following specific embodiments in conjunction with the accompanying drawings. It should be noted that the following specific examples are given by way of illustration only and the scope of the present invention is not limited thereto.
As shown in fig. 1, the ultraviolet LED dodging device of the present embodiment includes: the LED light source comprises a first light homogenizing film 1, a second light homogenizing film 2, a light homogenizing cup 3, a first-level step 3-1 of the light homogenizing cup, a second-level step 3-2 of the light homogenizing cup, an ultraviolet LED4 and an aluminum substrate 5.
The first light homogenizing film 1 and the second light homogenizing film 2 are made of light-transmitting polytetrafluoroethylene materials which can transmit 85% -100% of ultraviolet rays, particularly ultraviolet rays with the wavelength being less than 350nm, the polytetrafluoroethylene materials are weak in ultraviolet ray absorption capacity, most of light rays are reflected or refracted and are not absorbed by fluorinated materials, and the fluorinated materials have high ultraviolet ray irradiation resistance and are not prone to aging.
Wherein, the thickness scope of the even membrane 2 of first layer even light 1 and second floor is all between 0.1mm ~ 0.2mm, and this scope light-emitting ability is strong, and the thickness of the even membrane 1 of first layer is less than the thickness of the even membrane 2 of second floor, and the ultraviolet ray passes through the even membrane 1 back diffusion ultraviolet distribution of second floor, reaches the even light effect of one-level, and the even scattering of ultraviolet ray comes out behind the even membrane 2 of first layer even light.
The dodging cup 3 is made of aluminum or plastic and is semi-elliptical, a reflecting layer is coated on the inner wall of the dodging cup and is beneficial to light reflection and homogenization, ultraviolet rays reflected by the dodging film are reflected by the reflecting layer, the ultraviolet rays are continuously reflected and refracted between the dodging film and the dodging cup, and finally the ultraviolet rays are scattered by the dodging film, and only a small part of the ultraviolet rays are absorbed by the dodging device.
The edge of the light homogenizing cup is provided with a second-level step 3-2, the inner wall of the light homogenizing cup 3 is provided with a first-level step 3-1, and the two layers of steps are bonded with a first light homogenizing film 1 and a second light homogenizing film 2.
The light homogenizing system of the embodiment is suitable for the LED point light source light homogenizing system, and is particularly suitable for the light homogenizing requirement of the ultraviolet LED with the wavelength less than 350 nm.
The ultraviolet LED4 of this embodiment is welded on the heat dissipation aluminum substrate 5, and the heat dissipation aluminum substrate is bonded to the bottom of the light homogenizing cup.
The ultraviolet LED4 of the present embodiment is welded on the heat dissipation aluminum substrate 5, the LED part is exposed on the aluminum substrate 5, and the fluorinated material is adhered at other positions to improve the light reflectivity and reduce the light absorption of the aluminum substrate 5, and the aluminum substrate 5 is adhered at the bottom of the light homogenizing cup.
It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like 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 ultraviolet LED dodging device, comprising:
the light homogenizing cup plays a role in homogenizing light;
the first-stage step of the dodging cup and the second-stage step of the dodging cup are arranged on the inner wall of the dodging cup;
the second light homogenizing film is arranged on the second step of the light homogenizing cup and is used for realizing the first step of light homogenizing;
the first light homogenizing film is arranged on the first step of the light homogenizing cup and is used for realizing the second step of light homogenizing;
an ultraviolet LED as a light source; and
and the aluminum substrate is arranged at the bottom of the light homogenizing cup and used for fixing the ultraviolet LED.
2. The dodging device of claim 1,
the materials adopted by the first layer of light homogenizing film and the second layer of light homogenizing film both comprise polytetrafluoroethylene materials.
3. The dodging device of claim 1,
the first light homogenizing film and the second light homogenizing film have the transmittance of 85-100% to ultraviolet rays.
4. The dodging device of claim 1,
the thickness of the first light homogenizing film and the second light homogenizing film is 0.1-0.2 mm.
5. The dodging device of claim 1,
the thickness of the first light homogenizing film is smaller than that of the second light homogenizing film.
6. The dodging device of claim 1,
the material adopted by the light homogenizing cup comprises aluminum or plastic.
7. The dodging device of claim 1,
the light homogenizing cup is in a semi-elliptical shape.
8. The dodging device of claim 1,
the inner wall of the dodging cup is plated with a mirror surface reflecting layer.
9. The dodging device of claim 1,
the wavelength of the ultraviolet LED is less than 350 nanometers;
the aluminum substrate is provided with a fluorinated material for improving reflectivity.
10. Use of a light unifying device as claimed in any one of claims 1 to 9 in the field of LED light unifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911093963.XA CN110680937B (en) | 2019-11-08 | 2019-11-08 | Ultraviolet LED light homogenizing device and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911093963.XA CN110680937B (en) | 2019-11-08 | 2019-11-08 | Ultraviolet LED light homogenizing device and application thereof |
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| Publication Number | Publication Date |
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| CN110680937A true CN110680937A (en) | 2020-01-14 |
| CN110680937B CN110680937B (en) | 2023-05-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111920975A (en) * | 2020-08-19 | 2020-11-13 | 上海亚明照明有限公司 | Germicidal lamp and germicidal method |
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| CN1086606A (en) * | 1992-11-02 | 1994-05-11 | 陶氏化学公司 | Polymeric reflector/refractor with improved surface or geometric configuration |
| EP1686630A2 (en) * | 2005-01-31 | 2006-08-02 | Samsung Electronics Co., Ltd. | Led device having diffuse reflective surface |
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| US20170290933A1 (en) * | 2016-04-08 | 2017-10-12 | Rayvio Corporation | Ultraviolet disinfection system |
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| CN110680937B (en) | 2023-05-02 |
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