CN203176741U - UV excitation system adopting electron beam to excite fluorescent UV source - Google Patents
UV excitation system adopting electron beam to excite fluorescent UV source Download PDFInfo
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- CN203176741U CN203176741U CN 201220712311 CN201220712311U CN203176741U CN 203176741 U CN203176741 U CN 203176741U CN 201220712311 CN201220712311 CN 201220712311 CN 201220712311 U CN201220712311 U CN 201220712311U CN 203176741 U CN203176741 U CN 203176741U
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- electron
- ultraviolet source
- ultraviolet
- activating system
- electron beam
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Abstract
The utility model relates to a photochemical reaction system, in particular to a UV chemical excitation system. A UV excitation system adopting an electron beam to excite a fluorescent UV source comprises a UV excitation system outer shell, wherein the UV source is arranged inside the UV excitation system outer shell, is provided with a light outlet, and is excited by the electron beam, and the electron beam excites the fluorescent UV source. The UV excitation system further comprises an electronic gun used for generating the electron beam and a fluorescent screen, wherein the fluorescent screen is provided with a light-permeable fluorescent screen surface, UV fluorescence powder used for emitting out UV is coated on the fluorescent screen surface to form a fluorescence powder layer, and the electronic gun faces the fluorescent screen surface. The UV excitation system adopting the electron beam to excite the fluorescent UV source can provide several watts of irradiation power, the spectral line pulse width is guaranteed by the characteristics of the fluorescence powder, the service life can reach more than 10000 hours, production cost is low, and meanwhile no mercury exists.
Description
Technical field
The utility model relates to the photochemical reaction system, is specifically related to ultraviolet light chemistry activating system.
Background technology
Ultraviolet wavelength is shorter than visible light, but the electromagnetic radiation longer than X ray.Ultraviolet light range of wavelength in electromagnetic spectrum is 10-400 nm.Start from the shortwave limit of visible light in this scope, and with the wavelength overlaid of long wave X ray.Ultraviolet light is divided into A ray, B ray and C ray (being called for short UVA, UVB and UVC), and wave-length coverage is respectively 400-315nm, 315-280nm, 280-190nm.
Photocuring technology is-an energy-conservation and clean and environment-friendly technology; its energy savings---energy consumption only is 1/5th of heat cure; and do not contain solvent, ecological environment is had protective effect, can be to airborne release poison gas and carbon dioxide, so be described as " green technology ".Photocuring technology (UV) is the UV-irradiation by certain wavelength, makes liquid epoxy acrylic resin high speed of polymerization form solid-state a kind of smooth processing technology, and photocuring reaction is light-initiated polymerization, cross-linking reaction in essence.Photocureable coating is that photocuring technology is at the example the earliest of industrial extensive successful Application, it also is the product of present photocuring industrial field volume of production and marketing maximum, scale is much larger than light-curable ink and curable adhesive, and epoxy acrylic is main photocureable coating.
The common ultraviolet light source overwhelming majority is mercury lamp, all is by electrode discharge excitation or high frequency pumping mercury atom, when mercury atom is got back to ground state from excitation state, produces 185nm, the ultraviolet ray of 253nm or 365nm.The spectral line of mercury lamp is the ultraviolet region continuous spectrum, and the common fault of all mercury lamps is that application efficiency is very low.Electrode temperature reached 2000 degree when the ultrahigh pressure mercury lamp of high-output power was worked, so the life-span often is shorter than 100 hours.Even the high-pressure sodium lamp of common lower-wattage, the life-span also is difficult to above 2000 hours.From environmental point of view, the operation material of all mercury lamps all is mercury vapour, and severe toxicity is arranged.
The another kind of mercury lamp alternative source of light of extensively being had an optimistic view of is UV-LED, its no mercury, and energy-conservation, portable characteristics are subjected to people and more and more pay close attention to.Ultraviolet LED is fine the work of UVA wave band, but has many problems at UVB and UVC, UVC wave band particularly, and power output is only at several mW, and the life-span is also very short.The research staff of various countries LED wants to capture this difficult problem, but does not see good achievement at present.
The utility model content
The purpose of this utility model is, provides the UV activating system that adopts electron-beam excitation fluorescence ultraviolet source, to solve the problems of the technologies described above.
The technical problem that the utility model solves can realize by the following technical solutions:
Adopt the UV activating system of electron-beam excitation fluorescence ultraviolet source, comprise a UV activating system shell, be provided with in the described UV activating system shell, a ultraviolet source, described ultraviolet source is provided with light-emitting window, it is characterized in that:
Described ultraviolet source adopts an electron-beam excitation fluorescence ultraviolet source, described electron-beam excitation fluorescence ultraviolet source, comprise an electron gun for generation of electron beam, also comprise fluorescent screen, described fluorescent screen is provided with the face of a printing opacity, scribble one deck on the described face and be used for sending ultraviolet ultraviolet fluorescence powder, form the Ultraluminescence bisque, described electron gun is towards described face.
Electron gun can produce electron beam, and the irradiation ultraviolet fluorescence powder, and ultraviolet fluorescence powder is excited to send ultraviolet ray.
Being provided with one between described Ultraluminescence bisque and the described electron gun is used for described Ultraluminescence bisque is penetrated the reflector layer that next light reflects back.Reflector layer reflects the light at described Ultraluminescence bisque directive rear forward, has improved ultraviolet irradiation intensity.Described reflector layer is an aluminium lamination preferably.
Electron gun can be one for generation of the short pulse electron gun of short pulse electron beam or for generation of the DC electronic rifle of DC electronic bundle, short pulse electron gun or DC electronic rifle excite described ultraviolet fluorescence powder in the mode of short pulse or direct current respectively.
Described electron gun also comprises a parallel beam expand device, electron beam after parallel beam expand device expands, according to described face, the even incident ultraviolet fluorescence powder of electron beam like this is evenly to excite ultraviolet fluorescence powder.
Described Ultraluminescence bisque below is provided with a nesa coating, and described nesa coating connects an electrode.The electron beam that electron beam generator produces forms the loop by electrode.
Described Ultraluminescence bisque can be the Ultraluminescence bisque of being excited to send long wave ultraviolet.It is the Ultraluminescence bisque of being painted by long wave ultraviolet fluorescent material.
Described UV activating system shell is a UV curing apparatus shell, and described ultraviolet source is arranged in the described UV curing apparatus shell, as ultraviolet source.
Described UV activating system shell is a UV exposure sources shell, and described ultraviolet source is arranged in the described UV exposure sources shell, as ultraviolet source.
Described UV activating system shell is a UV printer casing, and described ultraviolet source is arranged in the described UV printer casing, as ultraviolet source.
Beneficial effect: the utility model is at the irradiation power that can provide several watts, and the spectral line pulsewidth guarantees that by the fluorescent material characteristic can reach more than 10000 hours service life, and production cost is low, does not have mercury simultaneously and occurs.
Description of drawings
Fig. 1 is the part-structure schematic diagram of ultraviolet irradiation light source of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
Adopt the UV activating system of electron-beam excitation fluorescence ultraviolet source, comprise a UV activating system shell, be provided with in the UV activating system shell, one ultraviolet source, ultraviolet source is provided with light-emitting window, ultraviolet source adopts an electron-beam excitation fluorescence ultraviolet source, electron-beam excitation fluorescence ultraviolet source, comprise an electron gun for generation of electron beam, also comprise fluorescent screen, fluorescent screen is provided with the face of a printing opacity, scribbles one deck on the face and is used for sending ultraviolet ultraviolet fluorescence powder, form the Ultraluminescence bisque, electron gun is towards face.
With reference to Fig. 1, adopt the UV activating system of electron-beam excitation fluorescence ultraviolet source, comprise an electron gun 3, a reflector layer 1.Also comprise fluorescent screen, fluorescent screen is provided with the face 2 of a printing opacity.
Electron gun 3 is for generation of electron beam.Electron gun 3 can be one for generation of the short pulse electron gun of short pulse electron beam or for generation of the DC electronic rifle of DC electronic bundle, short pulse electron gun or DC electronic rifle excite ultraviolet fluorescence powder in the mode of short pulse or direct current respectively.
Reflector layer 1 is used for that the Ultraluminescence bisque is penetrated the light that comes and reflects back.Can be the reflector layer 1 that reflectorized material is made, the aluminium lamination that preferred aluminium, aluminium foil are made.
Scribble one deck ultraviolet fluorescence powder on the face 2, form the Ultraluminescence bisque.Ultraviolet fluorescence powder can be to be excited to send the long wave ultraviolet ultraviolet fluorescence powder.Particular type can be selected as required.Face 2 can be a glass screen, and a side of vial scribbles ultraviolet fluorescence powder.As a kind of preferred version, the outside of glass screen scribbles ultraviolet fluorescence powder, and the inboard of glass screen is electroplate with aluminium lamination.
Electron gun 3 is towards face 2, and the electron beam that electron gun 3 sends sees through reflector layer 1 and shines to face 2 the ultraviolet fluorescence powder stimulated emission ultraviolet light of face 2.The ultraviolet light part that ultraviolet fluorescence powder sends penetrates forward, a part of directive rear, and the ultraviolet ray at directive rear is reflected by reflector layer 1, directive the place ahead.Ultraluminescence bisque below is provided with a nesa coating, and nesa coating connects an electrode.The electron beam that electron beam generator produces forms the loop by electrode.
Electron gun 3 also comprises a parallel beam expand device, electron beam after parallel beam expand device expands, towards with face 2, the even incident ultraviolet fluorescence powder of electron beam like this is evenly to excite ultraviolet fluorescence powder.
Of course, UV activating system shell is a UV curing apparatus shell, and ultraviolet source is arranged in the UV curing apparatus shell, as ultraviolet source.
Of course, UV activating system shell is a UV exposure sources shell, and ultraviolet source is arranged in the UV exposure sources shell, as ultraviolet source.
Of course, UV activating system shell is a UV printer casing, and ultraviolet source is arranged in the UV printer casing, as ultraviolet source.
The utility model is at the irradiation power that can provide several watts, and the spectral line pulsewidth guarantees that by the fluorescent material characteristic can reach more than 10000 hours service life, and production cost is low, does not have mercury simultaneously and occurs.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. adopt the UV activating system of electron-beam excitation fluorescence ultraviolet source, comprise a UV activating system shell, be provided with in the described UV activating system shell, a ultraviolet source, described ultraviolet source is provided with light-emitting window, it is characterized in that:
Described ultraviolet source adopts an electron-beam excitation fluorescence ultraviolet source, described electron-beam excitation fluorescence ultraviolet source, comprise an electron gun for generation of electron beam, also comprise fluorescent screen, described fluorescent screen is provided with the face of a printing opacity, scribble one deck on the described face and be used for sending ultraviolet ultraviolet fluorescence powder, form the Ultraluminescence bisque, described electron gun is towards described face.
2. the UV activating system of employing electron-beam excitation fluorescence ultraviolet source according to claim 1 is characterized in that: be provided with one between described Ultraluminescence bisque and the described electron gun and be used for described Ultraluminescence bisque is penetrated the reflector layer that next light reflects back.
3. the UV activating system of employing electron-beam excitation fluorescence ultraviolet source according to claim 2, it is characterized in that: described electron gun is a short pulse electron gun for generation of the short pulse electron beam.
4. the UV activating system of employing electron-beam excitation fluorescence ultraviolet source according to claim 2, it is characterized in that: described electron gun is a DC electronic rifle for generation of the DC electronic bundle.
5. the UV activating system of employing electron-beam excitation fluorescence ultraviolet source according to claim 1, it is characterized in that: described electron gun also comprises a parallel beam expand device.
6. the UV activating system of employing electron-beam excitation fluorescence ultraviolet source according to claim 1, it is characterized in that: described Ultraluminescence bisque below is provided with a nesa coating, described nesa coating connects an electrode, and the electron beam that electron beam generator produces forms the loop by electrode.
7. the UV activating system of employing electron-beam excitation fluorescence ultraviolet source according to claim 2, it is characterized in that: described Ultraluminescence bisque is the Ultraluminescence bisque of being excited to send long wave ultraviolet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712311 CN203176741U (en) | 2012-12-20 | 2012-12-20 | UV excitation system adopting electron beam to excite fluorescent UV source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712311 CN203176741U (en) | 2012-12-20 | 2012-12-20 | UV excitation system adopting electron beam to excite fluorescent UV source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176741U true CN203176741U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220712311 Expired - Fee Related CN203176741U (en) | 2012-12-20 | 2012-12-20 | UV excitation system adopting electron beam to excite fluorescent UV source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3168860A1 (en) | 2015-11-16 | 2017-05-17 | Tomas Bata University In Zlín | Device and method for producing uv radiation |
-
2012
- 2012-12-20 CN CN 201220712311 patent/CN203176741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3168860A1 (en) | 2015-11-16 | 2017-05-17 | Tomas Bata University In Zlín | Device and method for producing uv radiation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20151220 |
|
| EXPY | Termination of patent right or utility model |