CN101567294A - Ultraviolet electric discharge lamp - Google Patents
Ultraviolet electric discharge lamp Download PDFInfo
- Publication number
- CN101567294A CN101567294A CNA2009101264557A CN200910126455A CN101567294A CN 101567294 A CN101567294 A CN 101567294A CN A2009101264557 A CNA2009101264557 A CN A2009101264557A CN 200910126455 A CN200910126455 A CN 200910126455A CN 101567294 A CN101567294 A CN 101567294A
- Authority
- CN
- China
- Prior art keywords
- luminous tube
- fluorophor
- ultraviolet
- discharge lamp
- lamp
- 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.)
- Pending
Links
Images
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The present invention provides an ultraviolet electric discharge lamp, wherein 100 percent mother material contains a transparent glass luminous tube (11) made from soda lime containing more than 10 percent of sodium oxide, and obtains 320 to 340nm wavelength and more than 80 percent transmittance needed by the ultraviolet electric discharge lamp. The diameter (D) of the luminous tube (11) is 38mm, the length (L) of the luminous tube (11) is 2,650nm, and a certain number of mercury and rare gas such as argon are packaged into the luminous tube (11). The inner surface of the luminous tube (11) is coated with ultraviolet light emitting type phosphor with varialbe effieciency value between 300 to 340nm. Thus the luminous intensity can be improved between 320 to 340nm.
Description
Technical field
The present invention relates to a kind of for example be used for the liquid crystal panel manufacturing engineering carry out ultraviolet irradiation with polymerization or the sclerosis macromolecular material ultraviolet discharge lamp, more specifically, relate to a kind of ultraviolet discharge lamp that improves luminous efficiency by the fluorophor or the thickness of selected coating.
Background technology
The ultraviolet discharge lamp of TOHKEMY 2002-358926 (prior art 1) is formed with gas-tight container, this gas-tight container is to see through the luminous tube that the ultraviolet soda lime glass of wavelength 253.7nm is made, the inner discharge medium that contains mercury and rare gas of enclosing of luminous tube, luminous tube inside is provided with pair of electrodes so that produce the low-pressure mercury vapour discharge.At the luminous tube inner surface, owing to be coated with and make the luminous BaSi2O5:Eu of near ultraviolet ray of wavelength 320～400nm of having been encouraged because of the mercury bright line of the wavelength 253.7nm of the low-pressure mercury vapour discharge emission of discharge medium, Ce (MeBa) Al11O19, YPO4:Ce, at least one or its combination in the fluorophor such as LaPO4:Ce, can one the high UV-A zone of the fluorescent tube impregnability that obtains UV cured shape resin inside simultaneously light and make the light in the stronger UV-C zone of the power of UV cured shape resin case hardening.
Summary of the invention
In above-mentioned prior art 1, though fluorescent tube can obtain the light in UV-A zone and UV-C zone simultaneously, wavelength is that the illumination of the light of 320～340nm can't promote.In order to promote the illumination of this wavelength region may, need the radical of corresponding increase lamp, exist the problem that manufacturing cost increases.
It is a kind of in the hot cathode Cooper-Hewitt lamp that is formed by soda lime glass luminous tube that first purpose of the present invention is to provide, and applies the specific fluorophor that the luminous luminescence-utraviolet in short wavelength zone is used, thereby can promote the ultraviolet discharge lamp of illumination.
Second purpose of the present invention be to provide a kind of can be by the LaPo of the fluorophor that will use as ultraviolet irradiation
4: the suitable thickness of Ce and see through the combined ultraviolet discharge lamp that improves ultraviolet irradiation efficient of luminous tube of specific wavelength.
Description of drawings
Fig. 1 is the pie graph of a shortcoming part that shows an embodiment of ultraviolet discharge lamp of the present invention.
Fig. 2 is the cross-sectional view of the I-I ' line of Fig. 1.
Fig. 3 is the schematic diagram of the ultraviolet ray transmissivity of the general soda-lime glass of explanation.
Fig. 4 is the schematic diagram that explanation is used for the luminescence distribution of fluorophor of the present invention.
Fig. 5 is the schematic diagram of explanation effect of the present invention.
Fig. 6 is the illumination schematic diagram relatively on the diverse location of explanation the present invention and existing lamp.
Fig. 7 is the schematic diagram of the comparison of explanation the present invention and existing illumination.
Fig. 8 is the schematic diagram of other embodiment of explanation ultraviolet discharge lamp of the present invention.
Embodiment
With reference to the accompanying drawings most preferred embodiment of the present invention is described.
Fig. 1, Fig. 2 are used to illustrate an embodiment of ultraviolet discharge lamp of the present invention, and Fig. 1 is a pie graph, and Fig. 2 is I-I ' the line cross-sectional view of Fig. 1.Again, Fig. 1 shows that with the state of local excision the part as the hot cathode Cooper-Hewitt lamp of an example of ultraviolet discharge lamp constitutes.
In Fig. 1, Fig. 2, the 11st, can obtain 80% above transmitance, contain the Na more than 10% for 320～340nm wavelength
2The clear glass luminous tube of the soda lime glass of the cheapness of O.Use soda lime glass luminous tube transmitance as shown in Figure 3, can obtain transmitance more than 80% near the above wavelength 340nm.
The caliber D of luminous tube 11 is 38mm, and pipe range L is 2367mm, and two ends have electrode 121,122.These electrodes 121,122 are by the tungsten filament 14 of lead 131, the 132 supporting-line rounds of conductivity.Lead 131,132 connects glass compacting encapsulation 15.Needle-like contact 171,172 on lead 131,132 and the lamp holder 161,162 connects, and described lamp holder 161,162 is separately fixed on the relative both ends of lamp.
Further, the low-pressure with 1～10Torr degree is enclosed argon gas rare gas and a certain amount of mercurys such as (Ar) in the luminous tube 11.And the surface applied in the inboard of luminous tube 11 has luminescence-utraviolet type fluorophor 18, and this fluorophor 18 has the peak value of conversion efficiency as shown in Figure 4, promptly occurs peak value between 300～340nm.
As such fluorophor 18, can consider for example NP-806 of day inferior chemical industry (strain) production.This luminous element is with LaPO
4(lanthanum orthophosphate): Ce (cerium) is as its component.Provide electric power by hot cathode Cooper-Hewitt lamp, can guarantee to have the characteristic that beam split shown in Figure 5 distributes from 121,122 pairs of above-mentioned formations of electrode.In this beam split distributes,, as seen further improve in its illumination of 320～340nm based on the characteristics of luminescence of luminescence-utraviolet type fluorophor 18.
The situation that is to use fluorophor of the present invention of Fig. 6 explanation and using under the situation of existing different fluorophor A, B, the comparative result during in the central portion (a) of ultraviolet discharge lamp and package-side (c) and (a) with the illumination of (c) pars intermedia (b) mensuration wavelength 320～340nm.
Again, the comparative result of illumination under the situation of the situation that is to use fluorophor of the present invention of Fig. 7 explanation and use different fluorophor A, B of the prior art.
Fluorophor of the present invention as mentioned above, with LaPO
4: Ce is as its component, and fluorophor A of the prior art is by YPO
4: Ce institute is as its component, and existing fluorophor B is by Ce (BaMgSr) Al
11O
19As its component.
When component is LaPO
4: under the situation of Ce, the average illumination of the position of lamp (a)～(c) is 0.457 (mW/cm
2), as 100%, the average illumination of fluorophor A then is 72.70% so with this average illumination, the average illumination of fluorophor B then is 44.67%.
Thereby, by containing 10% above Na
2Coating is by LaPO on the hot cathode Cooper-Hewitt lamp that the clear glass luminous tube of the soda lime glass of the cheapness of O is constituted
4: Ce is as the situation of the fluorophor of its component, and the situation of comparing coating fluorophor B can improve 55% illumination, and the situation of comparing coating fluorophor A can improve the illumination near 30%.
In the present embodiment, by containing 10% above Na
2The luminous tube coated inner wall of the cheap soda lime glass of O is used for the fluorophor of ultra-violet light-emitting, and can make the illumination of 320～340nm compare increases by 30% degree in the past at least.Because the illumination of 320～340nm improves, thus can liquid crystal material be arranged and the liquid crystal panel irradiation ultraviolet radiation of the ultraviolet reaction material of polymerization takes place mixing to enclose with the ultraviolet ray reaction, thus can carry out polymerization to ultraviolet reaction material expeditiously.
Again, because the raising of illumination is reaching the radical that has reduced lamp under the situation of same illumination, so can help to save electric power.
In the present embodiment, adopt general ultra-violet light-emitting type hot cathode lamp, just can realize can be at the ultra-violet lamp of 320～340nm wavelength high efficiency light-emitting.Again, there is not extremely short wavelength illumination yet, thereby for mixing or enclose the liquid crystal panel that liquid crystal material and ultraviolet reaction material are arranged, its liquid crystal material can be by the broken up with UV light that ultraviolet discharge lamp of the present invention shone, and polymerization ultraviolet ray reaction material expeditiously.
Fig. 8 is the schematic diagram of other embodiment of explanation ultraviolet discharge lamp of the present invention.Present embodiment makes the Thickness Variation of fluorophor, Fig. 8 explanation be the relation that makes the relative illumination under the Thickness Variation situation of fluorophor 18.
Herein, the employing length of illumination is that the internal diameter of 2382.8 ± 2.4mm, luminous tube 11 is the hot cathode Cooper-Hewitt lamp of 38 ± 1.5mm, measures near the relative illumination (%) (320nm) when making the thickness of fluorophor 18 change between 1～49 μ m.
As shown in Figure 8, if the thickness of fluorophor 18 is the scope of 5～40 μ m, big activation obtains showing illumination more than 90%.Therefore, the component when employed fluorophor 18 is LaPO
4: Ce, and thickness can realize obtaining the hot cathode Cooper-Hewitt lamp of high efficiency illumination when being 5～40 μ m.
In the present embodiment, be LaPO by adopting component
4: the fluorophor 18 of Ce, and make the scope of the thickness of this fluorophor 18 at 5～40 μ m, can improve the illumination of wavelength 320～340nm.
Therefore, can improve the illumination of wavelength 320～340nm.Reach such effect thus: under the situation that does not increase the radical that reaches the employed lamp of illumination that is improved, just can obtain the lamp of wavelength 320～340nm, and help to reduce production costs.
The particle diameter of fluorophor 18 is 1～5 μ m preferably.This be because, when particle diameter during less than 1 μ m, photopermeability reduces, if size ratio 5 μ m are big, luminous tube inside has that mercury is being paid between particle diameter and melanism easily, thereby causes the life-span of lamp to be reduced.
Again, the present invention is not limited to the above embodiments.Owing to can use general ultra-violet light-emitting type hot cathode lamp to make, therefore the length of illumination of same lamp is also applicable to the required 2500mm of large size panels such as crystal liquid substrate of future generation irradiation.
Claims (3)
1. a ultraviolet discharge lamp is characterized in that, comprising:
The clear glass luminous tube;
The startup of enclosing in the described luminous tube uses inert gas and mercury as enclosing thing;
Be oppositely arranged on the pair of discharge electrodes in the described luminous tube;
Fluorophor, it is coated in described luminous tube inwall, conversion mercury frequency spectrum 253.7nm, the peak value that has conversion efficiency at 300～340nm wavelength,
Described luminous tube is made by the soda lime glass that contains the sodium oxide molybdena more than 10% in the 100% mother metal matter.
2. a ultra-violet lamp is characterized in that, comprising:
The luminous tube of making by the soda lime glass of ultraviolet infiltration type;
The startup of enclosing in the described luminous tube uses inert gas and mercury as enclosing thing;
Be oppositely arranged on the pair of electrodes in the described luminous tube;
With LaPO
4: Ce is the fluorophor that fertile material is formed on described luminous tube inner surface,
The thickness of described fluorophor is 5～40 μ m.
3. ultraviolet discharge lamp as claimed in claim 1 is characterized in that, the particle diameter of described fluorophor is 1～5 μ m.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008114197A JP2009266574A (en) | 2008-04-24 | 2008-04-24 | Ultraviolet discharge lamp |
| JP2008114197 | 2008-04-24 | ||
| JP2008216416 | 2008-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101567294A true CN101567294A (en) | 2009-10-28 |
Family
ID=41283402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101264557A Pending CN101567294A (en) | 2008-04-24 | 2009-03-05 | Ultraviolet electric discharge lamp |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009266574A (en) |
| CN (1) | CN101567294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213002A (en) * | 2021-12-24 | 2022-03-22 | 上海罗金光电科技有限公司 | Environment-friendly lead-free sterilizing lamp tube |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5857863B2 (en) * | 2011-09-22 | 2016-02-10 | 東芝ライテック株式会社 | UV irradiation equipment |
| JP7234730B2 (en) | 2019-03-25 | 2023-03-08 | 東芝ライテック株式会社 | Discharge lamp and liquid crystal panel manufacturing equipment |
| JP7188221B2 (en) | 2019-03-25 | 2022-12-13 | 東芝ライテック株式会社 | Liquid crystal panel manufacturing equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224551A (en) * | 1985-07-25 | 1987-02-02 | Toshiba Corp | Ultraviolet rays fluorescent lamp |
| JP2002358926A (en) * | 2001-05-31 | 2002-12-13 | Harison Toshiba Lighting Corp | Ultraviolet fluorescent lamp |
| JP2003109541A (en) * | 2001-09-27 | 2003-04-11 | Harison Toshiba Lighting Corp | Ultraviolet fluorescent lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002260588A (en) * | 2001-02-27 | 2002-09-13 | Okaya Electric Ind Co Ltd | Ultraviolet ray discharge tube |
| JP2006058755A (en) * | 2004-08-23 | 2006-03-02 | Fujitsu Display Technologies Corp | Liquid crystal display and its manufacturing method |
-
2008
- 2008-04-24 JP JP2008114197A patent/JP2009266574A/en active Pending
-
2009
- 2009-03-05 CN CNA2009101264557A patent/CN101567294A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224551A (en) * | 1985-07-25 | 1987-02-02 | Toshiba Corp | Ultraviolet rays fluorescent lamp |
| JP2002358926A (en) * | 2001-05-31 | 2002-12-13 | Harison Toshiba Lighting Corp | Ultraviolet fluorescent lamp |
| JP2003109541A (en) * | 2001-09-27 | 2003-04-11 | Harison Toshiba Lighting Corp | Ultraviolet fluorescent lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213002A (en) * | 2021-12-24 | 2022-03-22 | 上海罗金光电科技有限公司 | Environment-friendly lead-free sterilizing lamp tube |
| CN114213002B (en) * | 2021-12-24 | 2024-01-26 | 上海罗金光电科技有限公司 | Environment-friendly lead-free sterilizing lamp tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009266574A (en) | 2009-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4464452B2 (en) | Fluorescent lamp, backlight unit and liquid crystal display device | |
| US20100277057A1 (en) | Fluorescent lamp | |
| US7696694B2 (en) | Low-pressure mercury vapor discharge lamp | |
| CN101567294A (en) | Ultraviolet electric discharge lamp | |
| US7239072B2 (en) | Fluorescent lamp and method of manufacturing | |
| CN103018963A (en) | Ultraviolet irradiation device | |
| CN1969357B (en) | Low-pressure gas discharge lamp comprising a UV-B phosphor | |
| US20080203891A1 (en) | Dielectric Barrier Discharge Lamp With Protective Coating | |
| CN101964297A (en) | Ultraviolet discharge lamp | |
| KR100478304B1 (en) | Florescent lamp and lighting apparatus | |
| TWI440065B (en) | Ultraviolet discharge lamp | |
| JP2010055782A (en) | Ultraviolet-ray discharge lamp | |
| JP2005528758A (en) | Low-pressure mercury vapor discharge lamp and compact fluorescent lamp | |
| CN101103434A (en) | Low-pressure mercury vapour discharge lamp and compact fluorescent lamp | |
| TW201034047A (en) | Noble gas fluorescent lamp | |
| CN102074451B (en) | Discharging lamp | |
| CN100449679C (en) | Very high output low pressure discharge lamp | |
| CN2829078Y (en) | Vitalight tube | |
| KR20090112547A (en) | Ultraviolet discharge lamp | |
| CN2879420Y (en) | High optical efficiency low working voltage outer electrode fluorescent lamp | |
| JP2005158701A (en) | Flat discharge tube | |
| CN100461331C (en) | Light negative assembly, light source structure and fluorescent tube | |
| TWI497559B (en) | Ultraviolet discharge lamp | |
| JP2007134059A (en) | Rare gas fluorescent lamp and light source device | |
| JP2000133204A (en) | Fluorescent lamp and light source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091028 |