CN110680937B - Ultraviolet LED light homogenizing device and application thereof - Google Patents
Ultraviolet LED light homogenizing device and application thereof Download PDFInfo
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- CN110680937B CN110680937B CN201911093963.XA CN201911093963A CN110680937B CN 110680937 B CN110680937 B CN 110680937B CN 201911093963 A CN201911093963 A CN 201911093963A CN 110680937 B CN110680937 B CN 110680937B
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- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 21
- -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
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000010453 quartz Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 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
- 239000003513 alkali Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
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- 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 for homogenizing light; a first-stage step of the dodging cup and a second-stage step of the dodging cup are arranged on the inner wall of the dodging cup; the second layer of light homogenizing film is arranged on the second-stage step of the light homogenizing cup and is used for realizing the first-step light homogenizing; the first layer of light homogenizing film is arranged on the first stage of the light homogenizing cup and is used for realizing second step light homogenizing; an ultraviolet LED as a light source; and the aluminum substrate is arranged at the bottom of the dodging cup and used for fixing the ultraviolet LED. The ultraviolet LED light homogenizing device has the advantages of small working current, low device temperature, simple implementation process and short production period, can be applied to the field requiring ultraviolet LED light homogenizing, has low cost, and can be accepted by most factories and applicable people.
Description
Technical Field
The invention relates to the technical field of ultraviolet LED dodging, in particular to an ultraviolet LED dodging device and application thereof.
Background
With the continuous increase of the light power of the ultraviolet LED, the ultraviolet LED is applied to various fields such as curing, medical treatment and household appliances, but because the ultraviolet LED is a point light source, the emitted light cannot be uniformly irradiated on a required position, and the effect is uneven, so people are working on the uniform light design of the ultraviolet LED. Uv light homogenizing requirements: the material has strong ultraviolet ray transmission capability, is resistant to irradiation and is not easy to yellow and deform. However, the light homogenizing of the ultraviolet LED is different from that of visible light or infrared light, the common material such as a light homogenizing plate used by the visible light cannot transmit ultraviolet light, the best material for transmitting ultraviolet light on the market at present is quartz glass, people can achieve the purpose of homogenizing light by adopting modes such as optical design of different structures, roughening the quartz surface and the like, but quartz has high cost, difficult molding and long production period, meanwhile, as the thickness of quartz is increased, the stronger the ultraviolet light absorbing capacity is, the less ultraviolet light is radiated, the working current of the LED must be increased to increase the light yield in order to compensate for the missing ultraviolet light, the temperature of the LED is increased continuously due to the increase of current, and the performance of the ultraviolet LED is reduced, so the heat dissipation problem is considered while the light homogenizing is studied, and most of the complicated schemes only appear in a laboratory and cannot be applied to the ground to form mass production.
In order to better apply the ultraviolet LED to various industries and improve the use effect, it is necessary to invent an ultraviolet LED dodging device, which is characterized in that: the LED light source has the advantages of small working current, low device temperature, simple implementation process and short production period, can be applied to the field requiring uniform light of ultraviolet LEDs, has low cost, and can be accepted by most factories and applicable people.
Disclosure of Invention
Accordingly, one of the primary objectives of the present invention is to provide an ultraviolet LED light evening device and an application thereof, so as to at least partially solve at least one of the above-mentioned problems.
In order to achieve the above object, as one aspect of the present invention, there is provided an ultraviolet LED dodging device comprising:
a light homogenizing cup for homogenizing light;
a first-stage step of the dodging cup and a second-stage step of the dodging cup are arranged on the inner wall of the dodging cup;
the second layer of light homogenizing film is arranged on the second-stage step of the light homogenizing cup and is used for realizing the first-step light homogenizing;
the first layer of light homogenizing film is arranged on the first stage of the light homogenizing cup and is used for realizing second step light homogenizing;
an ultraviolet LED as a light source; and
the aluminum substrate is arranged at the bottom of the dodging cup and used for fixing the ultraviolet LED.
As another aspect of the present invention, there is also provided an application of the light uniformizing device as described above in the field of light uniformizing.
Based on the above technical scheme, the ultraviolet LED dodging device and the application thereof of the present invention have at least one of the following advantages over the prior art:
1. the ultraviolet LED light homogenizing device has the advantages of small working current, low device temperature, simple realization process and short production period, can be applied to the field requiring ultraviolet LED light homogenizing, has low cost, and can be accepted by most factories and applicable people;
2. the single ultraviolet LED emits a point light source, the radiation intensity received from the same distance as the LED is inconsistent, the ideal sterilization effect can not be achieved, and in order to achieve consistent light, uniform photochemical treatment is needed. However, after ultraviolet rays, particularly deep ultraviolet rays, are emitted through a traditional acrylic material light homogenizing plate, most of the light rays are absorbed by the light homogenizing plate and cannot be scattered outside, a high-quality quartz material has higher transmittance for the ultraviolet rays, optical design and roughening treatment are required to be carried out on the quartz surface to realize 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 and ultraviolet irradiation resistance, and is far lower than quartz price. The polytetrafluoroethylene film has a rough surface, ultraviolet rays penetrate and then are emitted in different directions, the light emitting form of the point light source is changed, the light homogenizing effect is realized, the light homogenizing film itself absorbs little ultraviolet rays, most of the ultraviolet rays are refracted out by the light homogenizing film, and the ultraviolet rays are reflected or scattered to the reflecting cup, after being reflected by the mirror reflecting cup for many times, more than 95% of the ultraviolet rays are uniformly scattered out under the cooperation of the light homogenizing film and the reflecting cup, and the light homogenizing effect is realized.
Drawings
Fig. 1 is a schematic structural diagram of an ultraviolet LED dodging device according to an embodiment of the present invention.
Reference numerals illustrate:
1. a first layer of light homogenizing film; 2. a second layer of light homogenizing film; 3. a dodging cup; 3-1, a first-stage step of a dodging cup; 3-2, a secondary step of the dodging cup; 4. an ultraviolet LED; 5-aluminum substrate.
Detailed Description
The present invention will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.
The invention discloses an ultraviolet LED dodging device, which comprises:
a light homogenizing cup for homogenizing light;
a first-stage step of the dodging cup and a second-stage step of the dodging cup are arranged on the inner wall of the dodging cup;
the second layer of light homogenizing film is arranged on the second-stage step of the light homogenizing cup and is used for realizing the first-step light homogenizing;
the first layer of light homogenizing film is arranged on the first stage of the light homogenizing cup and is used for realizing second step light homogenizing;
an ultraviolet LED as a light source; and
the aluminum substrate is arranged at the bottom of the dodging cup and used for fixing the ultraviolet LED.
Wherein, the materials adopted by the first layer of light homogenizing film and the second layer of light homogenizing film all comprise polytetrafluoroethylene materials.
Wherein the transmittance of the first layer of light homogenizing film and the second layer of light homogenizing film to ultraviolet rays is 85% to 100%.
Wherein the thicknesses of the first layer of light homogenizing film and the second layer of light homogenizing film are 0.1-0.2 mm.
The thickness of the first layer of uniform light film is smaller than that of the second layer of uniform light film.
Wherein, the material that even light cup adopted includes aluminium or plastics.
Wherein, even light cup is half oval-shaped.
Wherein, the inner wall of the even light cup is plated with a mirror reflection layer.
Wherein the wavelength of the ultraviolet LED is less than 350 nanometers;
wherein, the aluminum substrate is provided with a fluoride material for improving 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 lamp comprises a first layer of light homogenizing film 1, a second layer of light homogenizing film 2, a light homogenizing cup 3, a first stage step 3-1 of the light homogenizing cup, a second stage step 3-2 of the light homogenizing cup, an ultraviolet LED4 and an aluminum substrate 5.
In some embodiments of the present invention, the first light homogenizing film 1 and the second light homogenizing film 2 are both polytetrafluoroethylene materials reflecting ultraviolet rays; the second layer of light homogenizing film is used for primarily changing the refraction and reflection directions of ultraviolet rays and scattering the ultraviolet rays to realize the first step of light homogenizing, and the first layer of light homogenizing film is used for further changing the refraction and reflection directions of the ultraviolet rays and further scattering the ultraviolet rays to realize the second step of light homogenizing.
In some embodiments of the present invention, the transmittance of the ultraviolet light reflected by the first layer of light homogenizing film 1 and the second layer of light homogenizing film 2 is 85% -100%;
in some embodiments of the present invention, the thickness of the first layer of light homogenizing film 1 and the second layer of light homogenizing film 2 are both in the range of 0.1mm to 0.2mm, and the thickness of the first layer of light homogenizing film 1 is smaller than the thickness of the second layer of light homogenizing film 2;
in some embodiments of the invention, the material of the dodging cup 3 is aluminum or plastic, and is semi-elliptical, and the inner wall is plated with a mirror reflection layer;
in some embodiments of the invention, the dodging cup is provided with a first-level step 3-1 at the edge of the dodging cup, the inner wall of the dodging cup 3 is provided with a second-level step 3-2, and the first-level dodging film 1 and the second-level dodging film 2 are fixed on the two-level steps;
in some embodiments of the invention, the wavelength range of the ultraviolet LED4 is less than 350nm;
in some embodiments of the present invention, the ultraviolet LED4 is soldered to the heat dissipating aluminum substrate 5, the aluminum substrate 5 is adhered with the fluorinated material, and the aluminum substrate 5 is adhered to the bottom of the dodging cup.
The technical scheme of the invention is further described below by means of specific embodiments and with reference to 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 layer of light homogenizing film 1, a second layer of light homogenizing film 2, a light homogenizing cup 3, a first stage step 3-1 of the light homogenizing cup, a second stage step 3-2 of the light homogenizing cup, an ultraviolet LED4 and an aluminum substrate 5.
Wherein, the first layer light homogenizing film 1 and the second layer light homogenizing film 2 are light-transmitting polytetrafluoroethylene materials which transmit 85% -100% of ultraviolet rays, especially ultraviolet rays with the wavelength smaller than 350nm, the polytetrafluoroethylene materials have weak ultraviolet ray absorption capability, most of light rays are reflected or refracted away and are not absorbed by fluorinated materials, and the fluorinated materials have high ultraviolet irradiation resistance and are not easy to age.
The thickness range of the first layer of uniform light film 1 and the second layer of uniform light film 2 is between 0.1mm and 0.2mm, the light-emitting capacity of the range is strong, the thickness of the first layer of uniform light film 1 is smaller than that of the second layer of uniform light film 2, ultraviolet rays are diffused after passing through the second layer of uniform light film 1, the ultraviolet rays are distributed, the first-level uniform light effect is achieved, and the ultraviolet rays are uniformly scattered after passing through the first layer of uniform light film 2.
Wherein, the material of even light cup 3 is aluminium or plastics, takes the shape of half ellipse, does benefit to the reflection of light and homogenizes the inner wall and plates the reflector layer, and the ultraviolet ray that the reflection of reflector layer reflection even light membrane was reflected, and the ultraviolet ray is constantly reflected between even light membrane and even light cup, and the ultraviolet ray is scattered by even light membrane at last, and only a small part is absorbed by even light device.
The edge of the dodging cup is provided with a second step 3-2, the inner wall of the dodging cup 3 is provided with a first step 3-1, and the two steps are adhered with a first dodging film 1 and a second dodging film 2.
The dodging system of the embodiment is suitable for the LED point light source dodging system, and is particularly suitable for the dodging requirement of ultraviolet LEDs with the wavelength smaller than 350 nm.
The ultraviolet LED4 of this embodiment is soldered on a heat-dissipating aluminum substrate 5, which is bonded to the bottom of the dodging cup.
The ultraviolet LED4 of this embodiment is welded on the heat dissipation aluminum substrate 5, the LED part is exposed on the aluminum substrate 5, the fluoride material is adhered at other positions, the light reflectivity is improved, the light absorption of the aluminum substrate 5 is reduced, and the aluminum substrate 5 is adhered at the bottom of the light homogenizing cup.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the invention thereto, but to limit the invention thereto, and any modifications, equivalents, improvements and equivalents thereof may be made without departing from the spirit and principles of the invention.
Claims (4)
1. An ultraviolet LED dodging device, comprising:
a light homogenizing cup for homogenizing light;
a first-stage step of the dodging cup and a second-stage step of the dodging cup are arranged on the inner wall of the dodging cup;
the second layer of light homogenizing film is arranged on the second-stage step of the light homogenizing cup and is used for realizing the first-step light homogenizing;
the first layer of light homogenizing film is arranged on the first stage of the light homogenizing cup and is used for realizing second step light homogenizing;
an ultraviolet LED as a light source; and
the aluminum substrate is arranged at the bottom of the dodging cup and used for fixing the ultraviolet LEDs;
wherein the first layer of light homogenizing film and the second layer of light homogenizing film are made of polytetrafluoroethylene materials; 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 light homogenizing cup is semi-elliptic; the inner wall of the dodging cup is plated with a mirror reflection layer; the wavelength of the ultraviolet LED is less than 350 nanometers; and the aluminum substrate is provided with a fluoride material for improving reflectivity.
2. The dodging device as claimed in claim 1, wherein,
the thickness of the first layer of uniform light film is smaller than that of the second layer of uniform light film.
3. The dodging device as claimed in claim 1, wherein,
the light homogenizing cup is made of aluminum or plastic.
4. Use of a light homogenizing device according to any of the claims 1-3 in the field of LED light homogenizing.
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 CN110680937A (en) | 2020-01-14 |
| CN110680937B true CN110680937B (en) | 2023-05-02 |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9306793A (en) * | 1992-11-02 | 1995-01-31 | Dow Chemical Co | POLYMER REFLECTOR / REFRACTOR THAT HAS A MODIFIED SURFACE OR GEOMETRIAM. |
| EP1686630A3 (en) * | 2005-01-31 | 2009-03-04 | Samsung Electronics Co., Ltd. | Led device having diffuse reflective surface |
| CN101273231B (en) * | 2005-09-28 | 2010-05-19 | 古河电气工业株式会社 | Light box, light reflector for the same, and method for producing light reflector |
| TWI364858B (en) * | 2008-06-19 | 2012-05-21 | Silitek Electronic Guangzhou | Photoelectric semiconductor device capable of generating uniform compound lights |
| CN107073145B (en) * | 2014-09-13 | 2020-12-04 | 首尔伟傲世有限公司 | Diffused light illuminator |
| JP5989854B1 (en) * | 2015-05-14 | 2016-09-07 | 株式会社トクヤマ | UV sterilizer |
| US10105460B1 (en) * | 2016-04-08 | 2018-10-23 | Rayvio Corporation | Ultraviolet disinfection system |
| US9789215B1 (en) * | 2016-04-08 | 2017-10-17 | Rayvio Corporation | Ultraviolet disinfection system |
| CN110260268B (en) * | 2019-06-24 | 2021-02-12 | 中国科学院半导体研究所 | Uniform light illumination module and application thereof |
| CN110417097A (en) * | 2019-08-28 | 2019-11-05 | 中国科学院半导体研究所 | Portable charger and application with sterilizing function |
| CN211214531U (en) * | 2019-11-08 | 2020-08-11 | 中国科学院半导体研究所 | Ultraviolet LED dodging device |
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