CN1741246A - Fluorescent lamp tube and plane lamp - Google Patents
Fluorescent lamp tube and plane lamp Download PDFInfo
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- CN1741246A CN1741246A CN 200510109766 CN200510109766A CN1741246A CN 1741246 A CN1741246 A CN 1741246A CN 200510109766 CN200510109766 CN 200510109766 CN 200510109766 A CN200510109766 A CN 200510109766A CN 1741246 A CN1741246 A CN 1741246A
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- dielectric medium
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- substrate
- ultraviolet light
- comprehensive reflector
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Abstract
A fluorescent lamp tube consists of a transparent lamp tube , a sealed cavity packed with gas , a pair of electrodes being set at two ends of said lamp tube , a dielectric substance fully reflecting layer set on internal wall of said lamp tube for reflecting all ultraviolet ray in sealed cavity , a fluorescent layer set on dielectric substance fully reflecting layer for reacting on with ultraviolet ray to generate visible light and a planar lamp structure with said dielectric substance fully reflecting layer .
Description
Technical field
The present invention is relevant for a kind of fluorescent tube and plane lamp, especially about a kind of fluorescent tube and plane lamp with the comprehensive reflector of dielectric medium.
Background technology
Cathode fluorescent tube because of its luminous intensity height, luminous evenly, can do superfine of fluorescent tube and can be made into different shape, also can make tabular as planar lamp source, so in fields such as LCD, scanner, automobile instrument panel, miniature advertisement lamp box and picture frame making, obtain at present to widely apply.In general, cathode fluorescent tube is a kind of miniature intense light source of novelty usually as the backlight of the said goods.
Traditional cathode fluorescent tube 100 as shown in Figure 1, has one deck fluorescence coating 105 on the inwall of Transparent lamp tube 101, pair of electrodes 103a and 103b are configured in the two ends of Transparent lamp tube 101, be full of mercury, argon, neon or xenon-133 gas in the Transparent lamp tube, when the electrode 103a at two ends and 103b apply a high voltage, can make for example argon (Ar) the generation ionization of gas in the Transparent lamp tube 101, electronics that is stimulated and mercury atom collision produce ultraviolet light or visible light, and ultraviolet light 209 produces visible light 211 with the fluorescent material effect that is coated on the closed cavity inwall.But fluorescence coating 105 can't absorb ultraviolet light 209 fully producing visible light, and part ultraviolet light 209 can be absorbed by cavity wall and be converted into heat or penetrate cavity wall and consume, and makes traditional fluorescent tube 100 can't effectively utilize the ultraviolet light that is subjected to electric field to excite generation.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of fluorescent tube and plane lamp with the comprehensive reflector of dielectric medium (dielectric omnidirectional reflector), the comprehensive reflector of dielectric medium is formed between fluorescent material and the fluorescent tube cavity inner wall, make the ultraviolet light reflected back cavity that penetrates fluorescent material, ultraviolet light is limited in the fluorescent tube cavity repeatedly and multi-direction reflection, after fully being acted on, ultraviolet light and fluorescent material disengage visible light, to exhaust the energy of ultraviolet light, improve the conversion efficiency of visible light, the comprehensive reflector of dielectric medium can reflect visible light in addition.Can increase the ultraviolet light utilance of fluorescent lamp by the comprehensive reflector of dielectric medium, and increase luminance efficiency, reduce the injury of ultraviolet light simultaneously human body.
For reaching above-mentioned purpose, the invention provides a kind of fluorescent tube, comprising: a Transparent lamp tube has a gassiness closed cavity; Pair of electrodes is configured in the two ends of this Transparent lamp tube; The comprehensive reflector of one dielectric medium places on the inwall of this Transparent lamp tube, is confined in this closed cavity in order to ultraviolet light is reflected fully; And a fluorescence coating, place on the comprehensive reflector of this dielectric medium, to produce visible light with the ultraviolet light reaction.
For reaching above-mentioned purpose, the invention provides a kind of plane lamp, comprising: one first substrate; One second substrate, with respect to this first substrate, wherein at least one in this first and second substrate is transparency carrier; At least one clearance wall places between this first substrate and this second substrate, forms gassiness cavity with this first substrate and this second substrate; The comprehensive reflector of one dielectric medium places the inwall of this cavity, is confined in this cavity in order to ultraviolet light is reflected fully; And a fluorescence coating, place on the comprehensive reflector of this dielectric medium, can produce visible light with the ultraviolet light reaction.
For above-mentioned and other purpose, feature and the advantage of invention can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Description of drawings
Fig. 1 is the conventional fluorescent lamp tube structure
Fig. 2 has the fluorescent tube structure in the comprehensive reflector of dielectric medium for the present invention
Fig. 3 has the plane modulated structure in the comprehensive reflector of dielectric medium for the present invention
Symbol description
Fluorescent tube～100; Transparent lamp tube～101; Electrode～103a, 103b; Fluorescence coating～105; Fluorescent tube～200; Transparent lamp tube～201; Electrode～203a, 203b; The comprehensive reflector of dielectric medium～205; Fluorescence coating～207; Ultraviolet light～209; Visible light～211; Plane lamp～300; First substrate～301; Second substrate～303; Clearance wall～305; The comprehensive reflector of dielectric medium～307; Fluorescence coating～309; Cavity～311
Embodiment
Fig. 2 shows the fluorescent tube 200 that has the comprehensive reflector of dielectric medium in one embodiment of the present invention, comprises a Transparent lamp tube 201, glass lamp for example, and lamp tube ends has pair of electrodes 203a and 203b.Be example with cathode fluorescent tube (CCFL) in this figure, electrode is positioned at the inside of fluorescent tube.Yet electrode is the design of external electrode fluorescent lamp pipe (EEFL) for example, and places the outside of fluorescent tube.Have a comprehensive reflector 205 of a dielectric medium and a fluorescence coating 207 on the inwall of fluorescent tube, wherein the comprehensive reflector 205 of dielectric medium places between Transparent lamp tube 201 and the fluorescence coating 207, for a kind of be that transparent periodicity is piled up the reflector in visible-range.Its principle of reflection is that can the light wave that energy gap phenomenon that utilize periodic structure to produce is controlled specific wavelength pass through, the frequency range of this energy gap and respective frequencies can be controlled by different dielectric material (dielectric material) and cycle size, in fact as long as periodic structure and proper with the ratio control of dielectric material, even the periodic structure of one dimension also can possess omnibearing energy gap, that is in particular frequency range, can't extend to the electromagnetic wave propagation mode of this structure-borne by various directions.Energy gap control approximate equation formula is as follows
Wherein, n1, n2: the reflection coefficient of different dielectric material (dielectric material); D1, d2: the thickness of different dielectric material (dielectric material); C: the light velocity; ω: angular frequency; A: cycle size (a=d1+d2), and the relational expression of A and two constants of B is as follows;
To specific d1/a ratio, the energy gap size of normalization (normalized): (ω 2-ω 1/0.5 (ω 2+ ω 1)) can utilize the reflection coefficient ratio of different materials to control.If the fixing wherein reflection coefficient of one deck dielectric material, for example n1 is a fixed value, and when then the reflection coefficient difference of two layer medium material was big more, the energy gap of normalization (normalized) was also big more.At this moment, the electromagnetic wave of the characteristic frequency in wider scope can't be transmitted extend to another media, so reach the effect of comprehensive reflection.
Piling up the reflector for transparent periodicity in the visible-range for example is the packed structures of at least two kinds of materials among SiO2, AlN, ZnO, Al2O3, Ta2O3 or the TiO2, be preferably the formed periodicity packed structures of SiO2/Al2O3, the one dimension cycle dielectric medium mirror of Zu Chenging like this, its loss is very low, just like perfect minute surface (perfect mirror).This minute surface can be the same with metal, in all angles, and reflection ray under various polarization conditions; But the big shortcoming of loss that does not but have metal and had.The comprehensive reflector of dielectric medium can nanometer manufacturing technology (nanotechnology), for example: self-assembly method (selfassembling), sol-gal process (sol-gel) and make.Or in the mode of other traditional optical plated film, for example: sputter (sputtering), electron gun evaporation (E-gun) or chemical vapor deposition (CVD) and make.The comprehensive reflector of dielectric medium can be at specific light beam angle of emergence design, (polarizations) all has very high reflectivity for different electric polarities, with the formed periodicity sandwich construction of SiO2/Al2O3 is example, again according to the material ratios of the theoretical control of previous designs plated film, can make the comprehensive reflector of dielectric medium at the reflectivity of the ultraviolet light of particular range of wavelengths greater than 95%.
Be full of for example mist of mercury and inert gas in the fluorescent tube cavity, can be not mercurous yet be inert gas merely, when the electrode 203a of fluorescent tube and 203b energising, produce the inert gas in high-octane electronics and the pipe or inspire part visible light and part ultraviolet light with the mist of mercury, wherein ultraviolet light 209 can be penetrated visible light 211 by fluorescence coating 207 absorption sides, but part ultraviolet light 209 does not pass fluorescence coating 207 with fluorescence coating 207 effects.Because comprehensive dielectric medium of the present invention reflector 205, between fluorescence coating 207 and Transparent lamp tube, can with not with the ultraviolet light reflected back fluorescent tube 200 of fluorescence coating 207 effect in, and ultraviolet light is confined in the fluorescent tube 200, promote the utilance of ultraviolet light whereby, increase the brightness and the luminous efficiency of fluorescent lamp, also can avoid ultraviolet light to pass fluorescence coating and Transparent lamp tube and cause waste and harmful user's eyes.
Fig. 3 shows the end view of plane of the present invention lamp 300, comprise one first substrate 301 and one second substrate 303, correspond to first substrate 301, wherein have at least one to be transparency carrier in first substrate 301 and second substrate 303, for example glass substrate or transparent plastic, and first and second substrate can be same material or different materials.Have a plurality of clearance walls 305 between first substrate 301 and second substrate 303, between first substrate and second substrate, isolate a plurality of cavitys 311, though isolate mutually between each cavity in icon, but also can interconnect, wherein clearance wall 305 can be integrally formed with first substrate 301 or second substrate 303, also may be separately formed between first substrate 301 and second substrate 303, wherein the shape of clearance wall can be single strip, a plurality of column or cross.
Gassy in the cavity 311, the mist of mercury and inert gas for example, or be merely inert gas, has the comprehensive reflector 307 of a fluorescence coating 309 and a dielectric medium on the cavity wall, the comprehensive reflector 307 of dielectric medium is formed between fluorescence coating 309 and first substrate 301 or second substrate 303, reflector for a kind of periodicity accumulation, for example be the packed structures of at least two kinds of materials among SiO2, AlN, ZnO, Al2O3, Ta2O3 or the TiO2, be preferably the formed periodicity packed structures of SiO2/Al2O3.The comprehensive reflector of dielectric medium can several different methods form, for example: the mode of self-assembly method (selfassembling), sol-gal process (sol-gel) or other traditional optical plated film, for example: sputter (sputtering), electron gun evaporation (E-gun) or chemical vapor deposition (CVD).The comprehensive reflector of dielectric medium can be reflected at the light beam of specific wavelength, (polarizations) all has very high reflectivity for different electric polarities, with the formed periodicity sandwich construction of SiO2/Al2O3 is example, and at the ultraviolet light of particular range of wavelengths, its reflectivity is greater than 95%.
The principle of luminosity of plane lamp 300 is as fluorescent tube 200, the high energy electron and generation visible light of the gas effect in the cavity and ultraviolet light that produce through the electrode (not shown) of plane lamp 300, the comprehensive reflector 307 of dielectric medium can allow visible light to pass through and light reflection ultraviolet, its reflectivity is about 95%, ultraviolet light 209 effectively can be confined in the cavity 311, discharge visible light 211 with fluorescence coating 309 abundant reactions, promote the utilance of ultraviolet light 209, increase the brightness and the luminous efficiency of plane lamp 300, also can avoid ultraviolet light to pass the fluorescence coating 309 and first substrate 301 or second substrate 303 and cause waste and harmful user's eyes.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any insider, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (17)
1. fluorescent tube comprises:
One Transparent lamp tube has a gassiness closed cavity;
Pair of electrodes is configured in the two ends of this Transparent lamp tube;
The comprehensive reflector of one dielectric medium places on the inwall of this Transparent lamp tube, in order to ultraviolet light is confined in this closed cavity; And
One fluorescence coating places on the comprehensive reflector of this dielectric medium, to produce visible light with the ultraviolet light reaction.
2. fluorescent tube according to claim 1, wherein the comprehensive reflector of this dielectric medium is in order to reflect the ultraviolet light under the various polarization conditions fully.
3. fluorescent tube according to claim 1, wherein the gas in this Transparent lamp tube is inert gas or mercury and the mixing of inert gas.
4. fluorescent tube according to claim 1, wherein this electrode is configured within this Transparent lamp tube or outside.
5. fluorescent tube according to claim 1, wherein the comprehensive reflector of this dielectric medium is an one-period property multi-layer transparent structure.
6. fluorescent tube according to claim 1, wherein the comprehensive reflector of this dielectric medium comprises the accumulation that repeats of following at least two kinds of materials: SiO2, AlN, ZnO, Al2O3, Ta2O3 or TiO2.
7. fluorescent tube according to claim 1, wherein the comprehensive reflector of this dielectric medium is the formed periodicity sandwich construction of silica/alundum (Al.
8. fluorescent tube according to claim 1, wherein the comprehensive reflector of this dielectric medium to the reflectivity of ultraviolet light greater than 95%.
9. plane lamp comprises:
One first substrate;
One second substrate, with respect to this first substrate, wherein at least one in this first and second substrate is transparency carrier;
At least one clearance wall places between this first substrate and this second substrate, forms a plurality of gassiness cavitys with this first substrate and this second substrate;
The comprehensive reflector of one dielectric medium places the inwall of this cavity, in order to ultraviolet light is confined in this cavity; And
One fluorescence coating places on the comprehensive reflector of this dielectric medium, can produce visible light with the ultraviolet light reaction.
10. plane according to claim 9 lamp, wherein the comprehensive reflector of this dielectric medium is in order to reflect the ultraviolet light under the various polarization conditions fully.
11. plane according to claim 9 lamp, wherein this clearance wall and this first substrate or this second substrate are integrally formed.
12. plane according to claim 9 lamp, wherein the shape of this clearance wall comprises: single strip, a plurality of column or cross.
13. plane according to claim 9 lamp, wherein the gas in this closed cavity is inert gas or mercury and the mixing of inert gas.
14. plane according to claim 9 lamp, wherein the comprehensive reflector of this dielectric medium is an one-period property multi-layer transparent structure.
15. plane according to claim 9 lamp, wherein the comprehensive reflector of this dielectric medium comprises the accumulation that repeats of following at least two kinds of materials: SiO2, AlN, ZnO, Al2O3, Ta2O3 or TiO2.
16. plane according to claim 9 lamp, wherein the comprehensive reflector of this dielectric medium is the formed periodicity sandwich construction of silica/alundum (Al.
17. plane according to claim 9 lamp, wherein the comprehensive reflector of this dielectric medium to the reflectivity of ultraviolet light greater than 95%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101097664A CN100399497C (en) | 2005-09-21 | 2005-09-21 | Fluorescent lamp tube and plane lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101097664A CN100399497C (en) | 2005-09-21 | 2005-09-21 | Fluorescent lamp tube and plane lamp |
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| Publication Number | Publication Date |
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| CN1741246A true CN1741246A (en) | 2006-03-01 |
| CN100399497C CN100399497C (en) | 2008-07-02 |
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| CNB2005101097664A Expired - Fee Related CN100399497C (en) | 2005-09-21 | 2005-09-21 | Fluorescent lamp tube and plane lamp |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012146064A1 (en) * | 2011-04-27 | 2012-11-01 | Mii Jenn-Wei | Apparatus for improving light output structure of visible light coating area of optical film lamp |
| US8323391B2 (en) | 2007-08-12 | 2012-12-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional structural color paint |
| US9063291B2 (en) | 2007-08-12 | 2015-06-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional reflector |
| US9229140B2 (en) | 2007-08-12 | 2016-01-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional UV-IR reflector |
| US9612369B2 (en) | 2007-08-12 | 2017-04-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| US9658375B2 (en) | 2012-08-10 | 2017-05-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination metal absorber and dielectric absorber layers |
| US9664832B2 (en) | 2012-08-10 | 2017-05-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination semiconductor absorber and dielectric absorber layers |
| US9678260B2 (en) | 2012-08-10 | 2017-06-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with semiconductor absorber layer |
| US9739917B2 (en) | 2007-08-12 | 2017-08-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| US9810824B2 (en) | 2015-01-28 | 2017-11-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural colors |
| US10048415B2 (en) | 2007-08-12 | 2018-08-14 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-dichroic omnidirectional structural color |
| US10690823B2 (en) | 2007-08-12 | 2020-06-23 | Toyota Motor Corporation | Omnidirectional structural color made from metal and dielectric layers |
| US10788608B2 (en) | 2007-08-12 | 2020-09-29 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures |
| US10870740B2 (en) | 2007-08-12 | 2020-12-22 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures and protective coatings thereon |
| US11726239B2 (en) | 2014-04-01 | 2023-08-15 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-color shifting multilayer structures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1050261A (en) * | 1996-07-31 | 1998-02-20 | Toshiba Lighting & Technol Corp | Discharge lamp, lighting system, and display device |
| WO2003100821A1 (en) * | 2002-05-29 | 2003-12-04 | Philips Intellectual Property & Standards Gmbh | Fluorescent lamp with ultraviolet reflecting layer |
| KR100658079B1 (en) * | 2003-08-25 | 2006-12-15 | 비오이 하이디스 테크놀로지 주식회사 | Backlight unit for liquid crystal display |
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2005
- 2005-09-21 CN CNB2005101097664A patent/CN100399497C/en not_active Expired - Fee Related
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| US10048415B2 (en) | 2007-08-12 | 2018-08-14 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-dichroic omnidirectional structural color |
| US9063291B2 (en) | 2007-08-12 | 2015-06-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional reflector |
| US10870740B2 (en) | 2007-08-12 | 2020-12-22 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures and protective coatings thereon |
| US9739917B2 (en) | 2007-08-12 | 2017-08-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| US9229140B2 (en) | 2007-08-12 | 2016-01-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional UV-IR reflector |
| US8323391B2 (en) | 2007-08-12 | 2012-12-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional structural color paint |
| US9612369B2 (en) | 2007-08-12 | 2017-04-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| US10788608B2 (en) | 2007-08-12 | 2020-09-29 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures |
| US11796724B2 (en) | 2007-08-12 | 2023-10-24 | Toyota Motor Corporation | Omnidirectional structural color made from metal and dielectric layers |
| US10690823B2 (en) | 2007-08-12 | 2020-06-23 | Toyota Motor Corporation | Omnidirectional structural color made from metal and dielectric layers |
| CN103503111B (en) * | 2011-04-27 | 2016-09-28 | 芈振伟 | The improvement device of optical film lamp visible ray applying area light emitting structures |
| WO2012146064A1 (en) * | 2011-04-27 | 2012-11-01 | Mii Jenn-Wei | Apparatus for improving light output structure of visible light coating area of optical film lamp |
| CN103503111A (en) * | 2011-04-27 | 2014-01-08 | 芈振伟 | Apparatus for improving light output structure of visible light coating area of optical film lamp |
| US9658375B2 (en) | 2012-08-10 | 2017-05-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination metal absorber and dielectric absorber layers |
| US9678260B2 (en) | 2012-08-10 | 2017-06-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with semiconductor absorber layer |
| US9664832B2 (en) | 2012-08-10 | 2017-05-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination semiconductor absorber and dielectric absorber layers |
| US11726239B2 (en) | 2014-04-01 | 2023-08-15 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-color shifting multilayer structures |
| US9810824B2 (en) | 2015-01-28 | 2017-11-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural colors |
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| Publication number | Publication date |
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| CN100399497C (en) | 2008-07-02 |
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