CN106935479A - A kind of ultraviolet rays light source - Google Patents
A kind of ultraviolet rays light source Download PDFInfo
- Publication number
- CN106935479A CN106935479A CN201710142725.8A CN201710142725A CN106935479A CN 106935479 A CN106935479 A CN 106935479A CN 201710142725 A CN201710142725 A CN 201710142725A CN 106935479 A CN106935479 A CN 106935479A
- Authority
- CN
- China
- Prior art keywords
- reflector
- light source
- ultraviolet rays
- lens group
- luminescence chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J63/00—Cathode-ray or electron-stream lamps
- H01J63/02—Details, e.g. electrode, gas filling, shape of vessel
Abstract
A kind of ultraviolet rays light source, including seal cavity and the luminescence chip being located in the seal cavity, seal cavity is provided with output window, electron emitting device, two electrodes, reflector and lens groups are provided with the seal cavity, two electrodes form accelerating field between being connected two electrodes for making with the both positive and negative polarity of power supply respectively, electrode is located at the outlet front of electron emitting device, and luminescence chip is located in reflector, and lens group is located at the front of reflector；Electron emitting device generation electron beam, the electron beam makes luminescence chip produce uviol lamp, the uviol lamp to be passed through from lens group after being reflected through reflector and through output window output after passing through electrode from the horizontal by incline direction directive luminescence chip.The present invention realizes cathode-ray ultraviolet source adjustable purpose in terms of beam shape and quality.
Description
Technical field
The present invention relates to a kind of ultraviolet source, it is especially a kind of can be by the continuously adjustabe ultraviolet light of cathode-ray luminescence
Source.
Background technology
UVB wave bands（285-320nm）And UVC wave bands（200nm-285nm）Ultraviolet source is in sterilizing base science of law punishment
The field such as detecing all has important application, especially miniaturization, the portable ultraviolet source of high power, more active demand.Industry at present
The general ultraviolet source in field is generally high-pressure sodium lamp, UV LED（UVLED）And by nonlinear optical crystal
Frequency multiplication or the short-wavelength laser produced with frequency.
The light sources such as high-pressure sodium lamp, the wavelength of transmitting is spuious, and power consumption is high, and service life is short, and environment will also result in necessarily
Pollution, although and UVLED with energy-conserving and environment-protective a little, shorter with its wavelength, electro-optical efficiency is lower, thermal effect
Should be more serious, the accumulation of fuel factor, it will lower physical life.Nonlinear optical crystal, with shortening for wavelength, light light
Conversion efficiency can also be reduced, and be involved great expense, it is impossible to meet normal domestic.
Miniaturization cathode-ray light source, the monocrystal thin films material of ultraviolet light can be sent by electron beam pumping, using negative electrode
Ray directly injects electronics to active area, excites chip material to light, and effectively improves electron injection rate, reduces due to electron scattering
Deng loss, be remarkably improved luminous power.But, there is no resonator, chip thin films material itself does not also modulate light beam side
To and spot size function, the direction of this cathode-ray luminescence be exactly it is random, it is uncertain, but if add whole
Shape dress is put, autotelic adjustment beam size, dispersion angle and the direction of propagation, it will improve the use scope of this light source with
And utilization ratio.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of ultraviolet rays light source, realizes cathode-ray ultraviolet source in light
Harness shape and the adjustable purpose of quality aspect.
In order to solve the above-mentioned technical problem, the present invention takes following technical scheme：
A kind of ultraviolet rays light source, including seal cavity and the luminescence chip being located in the seal cavity, seal cavity are provided with
Output window, is provided with electron emitting device, two electrodes, reflector and lens groups, two electrode difference in the seal cavity
It is connected with the both positive and negative polarity of power supply between two electrodes for making and forms accelerating field, electrode is located at going out for electron emitting device
In front of mouthful, luminescence chip is located in reflector, and lens group is located at the front of reflector；
Electron emitting device produces electron beam, the electron beam through after electrode from the horizontal by incline direction directive luminescence chip
Luminescence chip is set to produce uviol lamp, the uviol lamp to be passed through from lens group and exported through output window after being reflected through reflector.
The reflector, lens group and output window are located in same rectilinear direction.
The electron emitting device is field emission apparatus or heat emission device.
The reflector includes but is not limited to parabolic type reflector, cylindrical reflector, spheric reflector or cone-shaped
Reflector.
The surface of reflection cup is additionally provided with Anti-reflective coating.
The lens group includes but is not limited to expand, shrink beam or divergence form lens group.
The lens group is made up of single or multiple plus lens.
The luminescence chip includes but is not limited to be made up of GaN or AlN sills.
The different ultraviolet light in direction is reflected as directional light by the present invention by reflector, and directional light is whole by lens group
Shape, is finally exported so that cathode-ray ultraviolet source is in light beam shape by output window with corresponding beam shape from cavity
Shape and quality aspect are adjustable.
Brief description of the drawings
Accompanying drawing 1 is catenation principle schematic diagram of the present invention；
Accompanying drawing 2 is the schematic diagram of lens group in the present invention；
Accompanying drawing 3 is another embodiment schematic diagram of lens group in the present invention.
Specific embodiment
For the ease of the understanding of those skilled in the art, the invention will be further described below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1,2 and 3, present invention is disclosed a kind of ultraviolet rays light source, including seal cavity 9 and this is located at
Luminescence chip 5 in seal cavity 9, seal cavity 9 is provided with output window 8, the seal cavity 9 and is provided with electron emission dress
Put 1, two electrodes 3, reflector 6 and lens groups 7, the both positive and negative polarity of two electrodes 3 respectively with power supply 4 is connected, make this two
Accelerating field is formed between individual electrode, electrode 3 is located at the outlet front of electron emitting device 1, and luminescence chip 5 is located at reflector 6
Focal point that is interior and being usually located at the reflector, lens group 7 is located at the front of reflector 6；Electron emitting device produces electron beam,
The electron beam makes luminescence chip produce uviol lamp after passing through electrode from the horizontal by incline direction directive luminescence chip, and this is ultraviolet
Lamp is passed through from lens group after being reflected through reflector and exported through output window.
The reflector, lens group and output window are located in same rectilinear direction.
The electron emitting device is field emission apparatus or heat emission device.And, electron emitting device is rotating electron
Emitter, including but not limited to e types electron emitting device, deflection electron emitting device and angled electron emission
Device, beam voltage is 0~20kV.
The reflector includes but is not limited to parabolic type reflector, cylindrical reflector, spheric reflector or cone-shaped
Reflector.Surface of reflection cup is additionally provided with Anti-reflective coating.Reflector size should be greater than 5mm, and chip size can vary in size, and anti-
Light cup can also do respective change, as long as ensureing that reflector is sufficiently large relative to chip size.Surface of reflection cup material can be with
Including but not limited to silver, aluminium and magnadure etc. are used as highly reflecting films material.
In addition, lens group include but is not limited to expand, shrink beam or divergence form lens group.Lens group is by single or multiple
Plus lens is constituted.Using condenser lens, light is focused at a certain position after output lens group, so can effectively carry
Bloom energy density.As shown in Figure 2, the shrink beam lens group for being constituted using concave-convex lens, becomes angle pencil of ray directional light
Arrow beam of light high-quality directional light, specific lens numbers or species can be adjusted accordingly according to specific needs.As shown in Figure 3, adopt
Optically focused convex lens are used, light beam can be converged at a bit, improve light energy.According to use requirement, light play staff can for shrink beam,
Expand, focus on or dissipate, depending on actual conditions.
The luminescence chip includes but is not limited to be made up of GaN or AlN sills.
Electron beam should be obtained at a high speed in electron emitting device, and enter two electric fields of the composition of electrode 3 in electron beam
Afterwards, two electrodes should be connected with the both positive and negative polarity of power supply respectively, electronics is accelerated in the electric field, do projectile motion, work as electronics
Beam 2 is gone on a journey after finishing from electrode, and electron beam is angled into luminescence chip 5.Chip in the present invention at focal position
Material includes but is not limited to GaN, AlN sill etc.；Its material structure can be that quantum wire, quantum dot or all electron injections can
With the material for lighting.
In the present invention, seal cavity forms vacuum environment, and under the vacuum state, electron emitting device 1 produces electron beam
2, and to electronics accelerate (beamacceleration), improve energy.Power supply provides energy production electric field for electrode, and the electron beam 2 after acceleration is worn
Electrode 3 is crossed, and is deflected in the presence of electric field, be then injected into the luminescence chip 5 at the focal position of reflector 6, lighted
Chip sends ultraviolet light after being excited by electron beam, the different ultraviolet light in direction is reflected as directional light by reflector 6, puts down
Row light, according to the difference of lens group, can carry out different shapings by the shrink beam shaping of lens group 7.At this as shown in Figure 2, warp
Turn into high light beam quality arrow beam of light directional light after crossing lens group, last directional light is exported by output window 8 from cavity.
It should be noted that the above is not limited to the present invention, before creation design of the invention is not departed from
Put, any obvious replacement is within protection scope of the present invention.
Claims (8)
1. a kind of ultraviolet rays light source, including seal cavity and the luminescence chip being located in the seal cavity, set in seal cavity
There is output window, it is characterised in that electron emitting device, two electrodes, reflector and lens groups are provided with the seal cavity,
Two electrodes form accelerating field between being connected two electrodes for making with the both positive and negative polarity of power supply respectively, and electrode is located at electronics
The outlet front of emitter, luminescence chip is located in reflector, and lens group is located at the front of reflector；
Electron emitting device produces electron beam, the electron beam through after electrode from the horizontal by incline direction directive luminescence chip
Luminescence chip is set to produce uviol lamp, the uviol lamp to be passed through from lens group and exported through output window after being reflected through reflector.
2. ultraviolet rays light source according to claim 1, it is characterised in that the reflector, lens group and output window
In same rectilinear direction.
3. ultraviolet rays light source according to claim 2, it is characterised in that the electron emitting device is field emission apparatus
Or heat emission device.
4. ultraviolet rays light source according to claim 3, it is characterised in that the reflector includes but is not limited to parabolic type
Reflector, cylindrical reflector, spheric reflector or cone-shaped reflector.
5. ultraviolet rays light source according to claim 4, it is characterised in that the surface of reflection cup is additionally provided with Anti-reflective coating.
6. ultraviolet rays light source according to claim 5, it is characterised in that the lens group includes but is not limited to expand,
Shrink beam or divergence form lens group.
7. ultraviolet rays light source according to claim 6, it is characterised in that the lens group is by single or multiple convergences
Lens are constituted.
8. ultraviolet rays light source according to claim 7, it is characterised in that the luminescence chip include but is not limited to by
GaN or AlN sills are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142725.8A CN106935479A (en) | 2017-03-10 | 2017-03-10 | A kind of ultraviolet rays light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142725.8A CN106935479A (en) | 2017-03-10 | 2017-03-10 | A kind of ultraviolet rays light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106935479A true CN106935479A (en) | 2017-07-07 |
Family
ID=59433745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710142725.8A Pending CN106935479A (en) | 2017-03-10 | 2017-03-10 | A kind of ultraviolet rays light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106935479A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210060192A1 (en) * | 2019-09-03 | 2021-03-04 | James Edward JASKIE | Antimicrobial device using ultraviolet light |
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| CN2409610Y (en) * | 1999-07-14 | 2000-12-06 | 汪良才 | Microwave sulphur lamp |
| EP1542260A1 (en) * | 2002-09-20 | 2005-06-15 | Japan Science and Technology Agency | Light-emitting device |
| EP2703471A1 (en) * | 2011-04-25 | 2014-03-05 | Hamamatsu Photonics K.K. | Ultraviolet light generating target, electron-beam-excited ultraviolet light source, and method for producing ultraviolet light generating target |
| CN203501056U (en) * | 2013-10-25 | 2014-03-26 | 浙江晶日照明科技有限公司 | LED collimating optical module |
| CN203552564U (en) * | 2013-11-22 | 2014-04-16 | 浙江农林大学 | Novel lens imaging light source |
| CN103851412A (en) * | 2012-11-30 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Approach side lamp |
| CN203797406U (en) * | 2014-03-13 | 2014-08-27 | 巩晓菡 | Parallel light beam led lamp |
| CN204515333U (en) * | 2015-03-27 | 2015-07-29 | 郑州迪飞机电设备有限公司 | For the Novel light source of Projection Display |
| CN205118733U (en) * | 2015-11-04 | 2016-03-30 | 广州市欧玛灯光设备有限公司 | Optical structure of lamps and lanterns |
| CN105846310A (en) * | 2016-04-20 | 2016-08-10 | 北京大学 | Light-emitting enhancement type electron beam pumping ultraviolet light source and preparation method thereof |
| CN106409647A (en) * | 2016-12-06 | 2017-02-15 | 北京大学东莞光电研究院 | Ultraviolet cathode ray light source |
| CN205960020U (en) * | 2016-07-22 | 2017-02-15 | 肇庆市欧迪明科技有限公司 | Encapsulation of chip level white light LED |
-
2017
- 2017-03-10 CN CN201710142725.8A patent/CN106935479A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2409610Y (en) * | 1999-07-14 | 2000-12-06 | 汪良才 | Microwave sulphur lamp |
| EP1542260A1 (en) * | 2002-09-20 | 2005-06-15 | Japan Science and Technology Agency | Light-emitting device |
| EP2703471A1 (en) * | 2011-04-25 | 2014-03-05 | Hamamatsu Photonics K.K. | Ultraviolet light generating target, electron-beam-excited ultraviolet light source, and method for producing ultraviolet light generating target |
| CN103851412A (en) * | 2012-11-30 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Approach side lamp |
| CN203501056U (en) * | 2013-10-25 | 2014-03-26 | 浙江晶日照明科技有限公司 | LED collimating optical module |
| CN203552564U (en) * | 2013-11-22 | 2014-04-16 | 浙江农林大学 | Novel lens imaging light source |
| CN203797406U (en) * | 2014-03-13 | 2014-08-27 | 巩晓菡 | Parallel light beam led lamp |
| CN204515333U (en) * | 2015-03-27 | 2015-07-29 | 郑州迪飞机电设备有限公司 | For the Novel light source of Projection Display |
| CN205118733U (en) * | 2015-11-04 | 2016-03-30 | 广州市欧玛灯光设备有限公司 | Optical structure of lamps and lanterns |
| CN105846310A (en) * | 2016-04-20 | 2016-08-10 | 北京大学 | Light-emitting enhancement type electron beam pumping ultraviolet light source and preparation method thereof |
| CN205960020U (en) * | 2016-07-22 | 2017-02-15 | 肇庆市欧迪明科技有限公司 | Encapsulation of chip level white light LED |
| CN106409647A (en) * | 2016-12-06 | 2017-02-15 | 北京大学东莞光电研究院 | Ultraviolet cathode ray light source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210060192A1 (en) * | 2019-09-03 | 2021-03-04 | James Edward JASKIE | Antimicrobial device using ultraviolet light |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |