CN102333393A - Field emission illumination light source - Google Patents
Field emission illumination light source Download PDFInfo
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- CN102333393A CN102333393A CN201010226072XA CN201010226072A CN102333393A CN 102333393 A CN102333393 A CN 102333393A CN 201010226072X A CN201010226072X A CN 201010226072XA CN 201010226072 A CN201010226072 A CN 201010226072A CN 102333393 A CN102333393 A CN 102333393A
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Abstract
The invention relates to a field emission illumination light source, which comprises a hollow tubular shell, a conductive anode, a conductive cathode, a transparent piece and a lamp cap, wherein one end of the shell is connected with the lamp cap, the other end of the shell is enclosed by the transparent piece, the conductive anode tightly clings to the transparent piece and is arranged opposite to the conductive cathode, the conductive cathode is accommodated in the shell and is fixed on the lamp cap, and the conductive cathode and the conductive anode are arranged in parallel. In the field emission illumination light source, the volume of an accommodating cavity formed by the shell, the conductive anode and the lamp cap is effectively enlarged through the conductive anode of the enclosed shell and the conductive cathode fixed in the shell and arranged in parallel to the conductive anode, so the large-volume accommodating cavity can not be affected when an air escape condition of the accommodating cavity appears, the lasting maintenance of high vacuum degree is realized, and the driving voltage of the light source is effectively reduced.
Description
[technical field]
The present invention relates to lighting source, particularly relate to a kind of field emission illuminating light source.
[background technology]
In the normal lighting, fluorescent lamp and LED lighting source usually are widely used.Fluorescent lamp inside is mercurous mist, utilizes the ultraviolet excitation light-emitting phosphor that gas discharge is luminous or gas discharge produces, but this light that is produced by gas discharge causes people's visual fatigue easily, and the existence of mercury also can cause the pollution of environment.The LED lighting source also exists in self scattering, the high-temperature work environment problems such as the life-span decay is very fast, divergence of beam property difference, and in addition, because color rendering and colour temperature and LED lighting source are the restrictions of point-source of light, the LED lighting source also causes visual fatigue easily.
The advantage that field emission illuminating light source has possessed energy-saving and environmental protection, can in adverse circumstances, work is widely used in each lighting field just gradually, to replace traditional fluorescent lamp and LED lighting source.The profile of field emission illuminating light source mainly concentrates on the field emission light source of plane for plane; Because the gap ratio of cavity and negative electrode and anode is less; Usually less than 1 centimetre; Therefore be difficult to reach high vacuum state, in addition, the venting rate is also apparent in view to the influence of vacuum state in the little cavity.
[summary of the invention]
Based on this, be necessary to provide a kind of field emission illuminating light source of keeping condition of high vacuum degree.
A kind of field emission illuminating light source; Comprise housing, conductive anode, conduction cathode, transparent member and the lamp holder of a hollow tube-shape, an end of said housing is connected with said lamp holder, and the other end of said housing is sealed by said transparent member; Said conductive anode and said transparent member are close to; And be oppositely arranged with said conductive cathode, said conductive cathode is contained in said housing and is fixed on the said lamp holder, and said conductive cathode and said conductive anode laterally arrange.
Preferably, the face of the said housing of sealing of said transparent member is arcwall face or plane.
Preferably, said conductive anode comprises to be close to the anode layer on the said transparent member and to be covered in the luminescent layer on the said anode layer, and said anode layer is a transparency electrode.
Preferably, said conductive anode also comprises reflector layer, and said reflector layer is covered on the said luminescent layer.
Preferably, the material of said reflector layer is an aluminium.
Preferably, said conductive cathode comprise cathode base and be covered on the said cathode base and with the corresponding emitter of said conductive anode, the material of said cathode base is a metal.
Preferably, said conductive cathode comprises cathode base, be covered on the said cathode base and with the corresponding cathodic coating of said conductive anode and be covered in the emitter on the said cathodic coating, the material of said cathode base is glass or pottery.
Preferably, said emitter is the surface that the localization array type is distributed in cathodic coating.
Preferably, state and comprise support bar, said conductive cathode is fixed on the said lamp holder through said support bar.
Preferably, cover one deck connection electrode in the said inner walls, said connection electrode is electrically connected with said conductive anode.
The conductive anode of above-mentioned field emission illuminating light source through closure casing and the conductive cathode that is fixed in the housing and laterally arranges with conductive anode; Increased the formed volume of accommodating cavity of housing, conductive anode and lamp holder effectively; Can the cavity of accommodating of big volume not exerted an influence when making the situation of accommodating cavity appearance venting; Thereby realized keeping lastingly of condition of high vacuum degree, reduced the driving voltage of light source effectively.
[description of drawings]
Fig. 1 is the structural representation of the field emission illuminating light source of an embodiment;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the partial enlarged drawing at B place among Fig. 1.
[embodiment]
As shown in Figure 1, the field emission illuminating light source of an embodiment comprises housing 100, conductive anode 200, conduction cathode 300, transparent member 400, lamp holder 500 and support bar 600.Housing 100 is a hollow tube-shape, and two ends have opening, and an end is connected with lamp holder 500, and the other end is sealed by transparent member 400, and conductive anode 200 is close to transparent member 400, and is oppositely arranged with conductive cathode 300.Conductive cathode 300 laterally arranges with the shape of conductive anode 200, and conductive cathode 300 is fixed on the lamp holder 500 through support bar 600 and is relative with conductive anode 200.
Please consult Fig. 2 simultaneously, conductive anode 200 comprises anode layer 220, luminescent layer 230 and reflector layer 240.
Please consult Fig. 3 simultaneously, conductive cathode 300 comprises cathode base 310 and emitter 330.
With roughly curved of conductive anode 200 corresponding faces or plane, its material can be metal, glass or pottery in the cathode base 310.And the arcwall face of cathode base 310 is identical with the arcwall face radius of curvature of conductive anode 200.Emitter 330 its materials can be film-type or accurate one-dimension type; For example; It is diamond film having, CNT or the carbon nm wall of representative that emitter 330 can be with the carbon, also can be cupric oxide nano line, zinc oxide nanowire, nanometer rods, tetragonal nano zine oxide or the oxidation Fe nanowire of oxide-based nanomaterial.Emitter 330 forms through cladding process or direct growth method.Preferably, emitter 330 distributes in whole cathode base 310 surface distributed or array localization.In the preferred embodiment, emitter 330 is a CNT, and the diameter of CNT is 10～20 nanometers, and length is 5～15 microns.If the material of cathode base 310 is glass or pottery, then need behind the corresponding cathodic coating 320 of cathode base 310 surface coverage one decks and conductive anode 200, again emitter 330 to be covered on the cathodic coating 320.Cathodic coating 320 forms through cladding process, sputtering method, galvanoplastic, sedimentation or vapour deposition method.It can be metal electrode or nonmetal electrode cathodic coating 320, for example chromium electrode, molybdenum electrode, aluminium electrode or contain indium tin oxide (Indium Tin Oxides, electrode ITO).
Light-emitting window 140 in transparent member 400 closure casings 100, the face of its closure casing 100 is preferably arcwall face or plane, and its material is preferably the polymethyl methacrylate of glass or high transmission rate.
The shape of lamp holder 500 is identical with normal lamp holder, can be helicitic texture or blooking-hanging type structure, thereby compatible with traditional incandescent lamp holder, with the traditional incandescent lamp of convenient substituting.In the present embodiment; Installing port 120 is fixedly linked in lamp holder 500 and the housing 100, and it comprises the holder 540 in the installing port 120 that is arranged at housing 100, the dielectric 530 that extends the cathode electrode 510 with external screw thread shape, the anode electrode 520 that is positioned at the holder bottom surface and connect cathode electrode 510 and anode electrode 520 along holder 540 sides.Lamp holder 500 also comprises getter (figure does not show), blast pipe 543, anode tap post 541 and cathode leg post 542.Getter is located on the holder 540, and blast pipe 543 runs through to be located in the holder 540, and anode tap post 541 and cathode leg post 542 are located at the marginal position of holder 540 respectively.The material of holder 540 is preferably glass or pottery.It can be evaporable or non-evaporable getter, if getter is an evaporable, then getter can be arranged on the cathode base 310, if getter is a non-evaporable, then getter can be arranged on the holder 540 in the lamp holder 500.The two ends of anode tap post 541 and cathode leg post 542 are respectively arranged with lead 544.Anode tap post 541 through lead 544 respectively with housing 100 in connection electrode 130 link to each other with anode electrode 520.Cathode leg post 542 is connected with conductive cathode 300 and cathode electrode 510 respectively through lead 544.Holder 540, housing 100 and conductive anode 200 form accommodates cavity 140, in order to accommodate conductive cathode 300.It is used for blast pipe 543 that this is accommodated cavity 140 and communicates with the external world when vacuumizing, and accommodates the gas in the cavity 140 with discharge.Lamp holder 500 all seals through slurry with the contact position of housing 100 and the contact position of blast pipe 543 and holder 540.Slurry is preferably the cryogenic glass powder slurry.In a preferred embodiment, accommodate vacuum degree in the cavity 140 less than 10
-4Handkerchief.The shape that is appreciated that lamp holder 500 is not limited to this, also can adopt other suitable shape or structures.
Other structures that support bar 600 is direct rod shape or is made up of straight-bar.Support bar 600 1 ends link to each other with conductive cathode, and the other end is through screw thread or directly be fixedly welded on holder 540 or the housing 100.Under the effect of support bar 600, conductive cathode 300 is arranged in the housing 100, and is oppositely arranged with conductive anode 200.Support bar 600 its materials can be glass or metal.
The conductive anode 200 of above-mentioned field emission illuminating light source through closure casing 100 and the conductive cathode 300 that is fixed in the housing 100 and laterally arranges with conductive anode 200; Housing 100, conductive anode 200 and lamp holder 500 formed volumes of accommodating cavity 140 have been increased effectively; Can the cavity 140 of accommodating of big volume not exerted an influence when making the situation of accommodating cavity 140 appearance venting; Thereby realized keeping lastingly of condition of high vacuum degree; Reduce the driving voltage of light source effectively, improved the electronics utilance.
The above embodiment has only expressed several kinds of execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. field emission illuminating light source comprises it is characterized in that housing, conductive anode, conduction cathode, transparent member and the lamp holder of a hollow tube-shape; One end of said housing is connected with said lamp holder; The other end of said housing is sealed by said transparent member, and said conductive anode and said transparent member are close to, and is oppositely arranged with said conductive cathode; Said conductive cathode is contained in said housing and is fixed on the said lamp holder, and said conductive cathode and said conductive anode laterally arrange.
2. field emission illuminating light source according to claim 1 is characterized in that, the face of the said housing of sealing of said transparent member is arcwall face or plane.
3. field emission illuminating light source according to claim 1 is characterized in that, said conductive anode comprises to be close to the anode layer on the said transparent member and to be covered in the luminescent layer on the said anode layer, and said anode layer is a transparency electrode.
4. field emission illuminating light source according to claim 3 is characterized in that said conductive anode also comprises reflector layer, and said reflector layer is covered on the said luminescent layer.
5. field emission illuminating light source according to claim 4 is characterized in that, the material of said reflector layer is an aluminium.
6. field emission illuminating light source according to claim 1 is characterized in that, said conductive cathode comprise cathode base and be covered on the said cathode base and with the corresponding emitter of said conductive anode, the material of said cathode base is a metal.
7. field emission illuminating light source according to claim 1; It is characterized in that; Said conductive cathode comprises cathode base, be covered on the said cathode base and with the corresponding cathodic coating of said conductive anode and be covered in the emitter on the said cathodic coating, the material of said cathode base is glass or pottery.
8. field emission illuminating light source according to claim 7 is characterized in that said emitter is the surface that the localization array type is distributed in cathodic coating.
9. field emission illuminating light source according to claim 1 is characterized in that, also comprises support bar, and said conductive cathode is fixed on the said lamp holder through said support bar.
10. field emission illuminating light source according to claim 1 is characterized in that, covers one deck connection electrode in the said inner walls, and said connection electrode is electrically connected with said conductive anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010226072.XA CN102333393B (en) | 2010-07-13 | 2010-07-13 | Field emission illumination light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010226072.XA CN102333393B (en) | 2010-07-13 | 2010-07-13 | Field emission illumination light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102333393A true CN102333393A (en) | 2012-01-25 |
| CN102333393B CN102333393B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010226072.XA Active CN102333393B (en) | 2010-07-13 | 2010-07-13 | Field emission illumination light source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426716A (en) * | 2012-05-17 | 2013-12-04 | 海洋王照明科技股份有限公司 | Field emission light source device |
| CN103972026A (en) * | 2013-01-29 | 2014-08-06 | 海洋王照明科技股份有限公司 | Light source assembly and lamp comprising light source assemblies |
| CN104078306A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission lamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818914A (en) * | 1987-07-17 | 1989-04-04 | Sri International | High efficiency lamp |
| CN1378700A (en) * | 1999-10-12 | 2002-11-06 | 松下电器产业株式会社 | Electron-emitting device and electron source comprising the same, field-emission image display, fluorescent lamp, and methods for producing them |
| JP2006236721A (en) * | 2005-02-24 | 2006-09-07 | Harison Toshiba Lighting Corp | Field emission type light source |
| CN101615559A (en) * | 2008-06-24 | 2009-12-30 | 三星Sdi株式会社 | Light-emitting device and utilize the display unit of this light-emitting device as light source |
-
2010
- 2010-07-13 CN CN201010226072.XA patent/CN102333393B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818914A (en) * | 1987-07-17 | 1989-04-04 | Sri International | High efficiency lamp |
| CN1378700A (en) * | 1999-10-12 | 2002-11-06 | 松下电器产业株式会社 | Electron-emitting device and electron source comprising the same, field-emission image display, fluorescent lamp, and methods for producing them |
| JP2006236721A (en) * | 2005-02-24 | 2006-09-07 | Harison Toshiba Lighting Corp | Field emission type light source |
| CN101615559A (en) * | 2008-06-24 | 2009-12-30 | 三星Sdi株式会社 | Light-emitting device and utilize the display unit of this light-emitting device as light source |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426716A (en) * | 2012-05-17 | 2013-12-04 | 海洋王照明科技股份有限公司 | Field emission light source device |
| CN103972026A (en) * | 2013-01-29 | 2014-08-06 | 海洋王照明科技股份有限公司 | Light source assembly and lamp comprising light source assemblies |
| CN104078306A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission lamp |
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| Publication number | Publication date |
|---|---|
| CN102333393B (en) | 2015-04-01 |
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