CN104008952A - Field emission device - Google Patents
Field emission device Download PDFInfo
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- CN104008952A CN104008952A CN201310061152.8A CN201310061152A CN104008952A CN 104008952 A CN104008952 A CN 104008952A CN 201310061152 A CN201310061152 A CN 201310061152A CN 104008952 A CN104008952 A CN 104008952A
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- negative electrode
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- feds
- flat plates
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Abstract
Disclosed is a field emission device. The field emission device comprises two cathode flat plates, two anode flat plates, an electron source, a driving device and a housing. The cathode flat plates comprise cathode substrates and cathode layers; the cathode layers partially cover the outer wall disc surfaces of the cathode substrates; the two cathode flat plates and the two anode flat plates are arranged to be mutually stacked; the anode flat plates are respectively symmetrically arranged at the outer sides of the two cathode flat plates; the anode flat plates comprise fluorescent layers, anode layers and anode substrates; the electron source is arranged in cavities between the cathode flat plates and the anode flat plates; the driving device is used for driving the two cathode flat plates to rotate; the two cathode flat plates and the two anode flat plates are embedded in the inner wall of the housing; and the two cathode flat plates form enclosed cavities with the housing. The thickness of the cathode flat plates of the field emission device is small, the weigh is light, the power consumption needed for rotation is small, and driving is easy. Besides, the field emission device has the advantages of simple structure, convenient control, and high practicality, thereby being applied to novel decoration light fixtures.
Description
Technical field
The present invention relates to lighting source field, relate in particular to a kind of feds.
Background technology
Feds (Field Emission Device) is a kind of emerging light source device, because it can realize uniform, slim, the luminous advantage of area source formula, be widely used at present, in decoration, display, lighting apparatus and microwave component, thering is huge application potential.
Existing feds is mainly by changing its photochromic object that reaches decoration, but at present common feds is also more dull for the form of decorative lamp, can only produce more single color, and conventionally need complicated drive system.
Summary of the invention
Technical problem to be solved by this invention is, a kind of feds is provided, and can realize simply and effectively the photochromic various of described feds and be easy to conversion.
In order to solve the problems of the technologies described above, embodiments of the invention provide a kind of feds, comprise two negative electrode flat boards, two anode flat plate, electron source, drive unit and shell, described negative electrode flat board comprises cathode base and cathode layer, described cathode base comprises two cards that are parallel to each other, described cathode layer part is covered in the outer wall card of described cathode base, two described negative electrode flat boards and two mutual stacking settings of described anode flat plate, two described anode flat plate are symmetrically set in respectively the outside of two described negative electrode flat boards, described anode flat plate comprises fluorescence coating, anode layer and anode substrate, described anode substrate is transparent material, described anode layer is covered in the inwall of described anode substrate, described fluorescence coating is covered in the inwall of described anode layer, described electron source is located at the cavity between described negative electrode flat board and described anode flat plate, described drive unit is used for driving two dull and stereotyped rotations of described negative electrode, dull and stereotyped and two the described anode flat plate of two described negative electrodes are all embedded in the inwall of described shell, two described negative electrode flat boards and two described anode flat plate and described shell form enclosed cavity.
Wherein, described negative electrode flat board is centrosymmetric, and described cathode base is the one in glass, plastics or pottery, and described cathode layer is the one in nesa coating or metal conductive film.
Wherein, described negative electrode flat board is circular, and described cathode layer is aluminium film, titanium film, silverskin or indium oxide tin film.
Wherein, described electron source is electron emitter, and described electron emitter is covered in the outer wall of described cathode layer, and described electron emitter is carbon nano-tube or nanometic zinc oxide rod array.
Wherein, it is fan-shaped, petal, tree-like or humanoid that the cover graphics of described cathode layer is, and wherein said fan-shaped central angle is 15～25 °, and the cover graphics of described electron emitter is mated with described cathode layer.
Wherein, described anode flat plate and the dull and stereotyped coaxial and form fit of described negative electrode, described anode substrate is the one in clear glass or transparent ceramic, described anode layer is nesa coating, described anode layer divides multiple regions, the cover graphics of the described anode layer in each region is mated with the cover graphics of described cathode layer, corresponding described fluorescence coating, the described fluorescence coating exciting light color difference in each region of covering of each described anode layer region surface.
Wherein, described electron source is gas electronic source, the cavity of described gas electronic source distribution between described negative electrode flat board and described anode flat plate, and described gas electronic source is one or more in nitrogen, helium, argon gas.
Wherein, described drive unit comprises rotating shaft, pad and motor, described rotating shaft runs through to be located between two described negative electrode flat boards, and dull and stereotyped coaxial with two described negative electrodes, described rotating shaft material is insulating material, described rotating shaft also runs through described pad, every described negative electrode flat board is all held between two described pads, relatively to fix described negative electrode flat board and described rotating shaft, described motor is used for driving described rotating shaft to rotate, and then driving two dull and stereotyped rotations of described negative electrode, the rotation period of described rotating shaft is 0.04～10 second.
Wherein, the inwall of described shell is established chute, and two described negative electrode flat boards and two equal adaptations of described anode flat plate are embedded in described chute.
Wherein, described shell also comprises ball, and described ball is located between described negative electrode flat board and described chute, to reduce the frictional force between described negative electrode flat board and described shell.
Feds in the embodiment of the present invention, its principle is, between described negative electrode flat board and described anode flat plate, apply high pressure, the magnitude of voltage of two described negative electrode flat boards equates, the magnitude of voltage of two described anode flat plate equates, makes to produce highfield between described negative electrode flat board and described anode flat plate.Described electron source ionizes out free electron under electric field action, thereby the described fluorescence coating of bombardment in high potential place and send visible ray is luminous in the overlay area of described fluorescence coating, and it is not luminous that all the other do not cover the region of fluorescence coating.When the dull and stereotyped inswept different region continuously of described negative electrode, when the described fluorescence coating of bombardment zones of different, described feds sends different photochromic.Thereby utilizing the time that human eye vision persists is 0.05～0.2 second, when the rotation period of described negative electrode flat board is less than 0.2 second or more in short-term, due to the visual persistence effect of human eye, observer can observe a prismy feds.
In structure, the embodiment of the present invention becomes described feds shape with two described negative electrode flat boards, two coaxial assemblies of described anode flat plate, drive unit and shell that size matches.By controlling the cover graphics of described cathode layer, the cover graphics of described anode layer and described fluorescence coating, the exciting light color of described fluorescence coating, and the rotation period of described drive unit, thereby the utilizing emitted light color of feds described in control break, so reach described feds photochromic various and be easy to conversion object.
To sum up, the described negative electrode slab-thickness of the described feds of the embodiment of the present invention is thin, and quality is light, rotates required power consumption little, is easy to drive.In addition, simple in structure, to control easyly, practicality is high, can be applicable to novel decorative lamp.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the decomposing schematic representation of a kind of feds of the present invention;
Fig. 2 is the combination schematic diagram of a kind of feds of the present invention;
Fig. 3 is the decomposing schematic representation of the feds that provides of another execution mode of the present invention;
Fig. 4 is the plane graph of the fluorescence coating that provides of another execution mode of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Below with reference to accompanying drawing, embodiments of the invention are described.Referring to Fig. 1 and Fig. 2, be a kind of feds 100 of the embodiment of the present invention, comprise two negative electrode flat boards 10, two anode flat plate 20, electron source 30, drive unit 40 and shells 50.
Described negative electrode flat board 10 comprises cathode base 11 and cathode layer 12, and described cathode base 11 comprises two cards that are parallel to each other, and described cathode layer 12 parts are covered in the outer wall card of described cathode base 11.In present embodiment, described negative electrode flat board 10 is centrosymmetric, and described cathode base 11 is the one in glass, plastics or pottery, and described cathode layer 12 is the one in nesa coating or metal conductive film.Concrete, described negative electrode dull and stereotyped 10 is circular, described cathode layer 12 is aluminium film, titanium film, silverskin or indium oxide tin film.Described cathode layer 12 parts are covered on described cathode base 11.In present embodiment, the cover graphics of the cover graphics of described cathode layer 12 is fan-shaped, and described fan-shaped central angle is 15～25 °.In other embodiments, described negative electrode flat board 10 can be the square or asymmetric figure in other centers, and the cover graphics of described cathode layer 12 can be petal, tree-like or humanoid.
Two described negative electrodes dull and stereotyped 10 and two mutual stacking settings of described anode flat plate 20, two described anode flat plate 20 are symmetrically set in respectively the outside of two described negative electrode flat boards 10.Described anode flat plate 20 comprises fluorescence coating 21, anode layer 22 and anode substrate 23, and described anode substrate 23 is transparent material, and described anode layer 22 is covered in the inwall of described anode substrate 23, and described fluorescence coating 21 is covered in the inwall of described anode layer 22.In the present embodiment, described outside, be all inside under conventional state, be all by two described negative electrode flat boards 10 respectively to both sides extend direction.
Described anode flat plate 20 and the dull and stereotyped 10 coaxial and form fit of described negative electrode, described anode substrate 23 is the one in clear glass or transparent ceramic, described anode layer 22 is nesa coating, 22 points of multiple regions of described anode layer, the cover graphics of the described anode layer 22 in each region is mated with the cover graphics of described cathode layer 12, corresponding described fluorescence coating 21, the described fluorescence coating 21 exciting light color differences in each region of covering of each described anode layer 22 region surface.Concrete, described anode layer 22 is indium oxide tin film.Described fluorescence coating 21 is three primary colors fluorescent powder, also can be monochromatic fluorescent material, can be also the mixed fluorescent powder of any two or three different exciting light colors.In present embodiment, the cover graphics of described cathode layer 12 is fan-shaped, and described fan-shaped central angle is 20 °.Accordingly, described anode layer 22 is covered in whole described anode substrate 23.Described fluorescence coating 21 is equally divided into 18 regions, each region is 20 °, central angle, on 18 regions, cover respectively the fluorescent material of different colours, color is followed successively by redness, reddish yellow colour mixture, yellow, yellowish green colour mixture, green, turquoise colour mixture, blueness, royal purple colour mixture, the purple of two-wheeled.In other embodiments, described anode flat plate 20 and the dull and stereotyped 10 different axis of described negative electrode, shape also can be different.Referring to Fig. 3 and Fig. 4, the cover graphics of described cathode layer 12 is petal, described anode layer 22 is equally divided into 6 regions, the cover graphics of the described anode layer 22 in each region is all petal, the described fluorescence coating 21 of the corresponding covering of each described anode layer 22 region surface, the exciting light color difference of the described fluorescence coating 21 in each region, as be followed successively by Red, yellow, green, blue, purple.It is tree-like or humanoid that the cover graphics of described cathode layer 12 also can be.
Described electron source 30 is located at the cavity between described negative electrode dull and stereotyped 10 and described two anode flat plate 20.In present embodiment, described electron source 30 is electron emitter, and described electron emitter is covered in the outer wall of described cathode layer 12, and what described electron emitter was concrete is carbon nano-tube or nanometic zinc oxide rod array.The cover graphics of described electron emitter is mated with described cathode layer 12.In other embodiments, described electron source 30 is gas electronic source, the cavity of described gas electronic source distribution between described negative electrode dull and stereotyped 10 and described anode flat plate 20, described gas electronic source is the gas that the first ionization energy is less, as one or more in nitrogen, helium, argon gas.
Described drive unit 40 is for driving two described negative electrodes dull and stereotyped 10 to rotate, and described drive unit 40 comprises rotating shaft 41, pad 42 and motor 43.
Described rotating shaft 41 runs through to be located between two described negative electrode flat boards 10, and coaxial with two described negative electrode flat boards 10, and described rotating shaft 41 materials are insulating material, concrete, and described rotating shaft 41 is the one in plastics or pottery.Described rotating shaft 41 also runs through described pad 42, every described negative electrode flat board 10 is all held between two described pads 42, relatively to fix described negative electrode dull and stereotyped 10 and described rotating shaft 41, described motor 43 is for driving described rotating shaft 41 to rotate, and then two described negative electrodes of driving dull and stereotyped 10 rotate.The rotation period of described rotating shaft 41 is 0.04～10 second.
Two described negative electrodes dull and stereotyped 10 and two described anode flat plate 20 are all embedded in the inwall of described shell 50, and two described negative electrodes dull and stereotyped 10 and two described anode flat plate 20 form enclosed cavity with described shell 50.In present embodiment, the inwall of described shell 50 is established chute 51, two described negative electrodes dull and stereotyped 10 and two equal adaptations of described anode flat plate 20 are embedded in described chute 51.Concrete, described chute 51 is four, with the accommodating described negative electrode dull and stereotyped 10 of difference and described anode flat plate 20.
Described shell 50 also comprises ball 52, and described ball 52 is located between described negative electrode dull and stereotyped 10 and described chute 51, to reduce the frictional force between described negative electrode dull and stereotyped 10 and described shell 50, is convenient to described negative electrode flat board 10 and rotates relative to described shell 50.
Feds 100 in the embodiment of the present invention, its principle is, between described negative electrode dull and stereotyped 10 and described anode flat plate 20, apply high pressure, the magnitude of voltage of two described negative electrode flat boards 10 equates, the magnitude of voltage of two described anode flat plate 20 equates, makes to produce highfield between described negative electrode dull and stereotyped 10 and described anode flat plate 20.Described electron source 30 ionizes out free electron under electric field action, thereby the described fluorescence coating 21 of bombardment in high potential place and send visible ray is luminous in the overlay area of described fluorescence coating 21, and it is not luminous that all the other do not cover the region of fluorescence coating 21.When the dull and stereotyped 10 continuous inswept different regions of described negative electrode, while bombarding the described fluorescence coating 21 of zones of different, described feds 100 sends different photochromic.Thereby utilizing the time that human eye vision persists is 0.05～0.2 second, when the rotation period of described negative electrode flat board 10 is less than 0.2 second or more in short-term, due to the visual persistence effect of human eye, observer can observe a prismy feds 100.
In structure, the embodiment of the present invention becomes described feds 100 described to shape and size match two negative electrode flat board 10, two described anode flat plate 20, drive unit 40 and the coaxial assemblies of shell 50.By controlling the cover graphics of described cathode layer 12, the cover graphics of described anode layer 22 and described fluorescence coating 21, the exciting light color of described fluorescence coating 21, and the rotation period of described drive unit 40, thereby the utilizing emitted light color of feds 100 described in control break, so reach described feds 100 photochromic various and be easy to conversion object.
To sum up, dull and stereotyped 10 thin thickness of the described negative electrode of the described feds 100 of the embodiment of the present invention, quality is light, rotates required power consumption little, is easy to drive.In addition, simple in structure, to control easyly, practicality is high, can be applicable to novel decorative lamp.
Above-described execution mode, does not form the restriction to this technical scheme protection range.The amendment done within any spirit at above-mentioned execution mode and principle, be equal to and replace and improvement etc., within all should being included in the protection range of this technical scheme.
Claims (10)
1. a feds, it is characterized in that, comprise two negative electrode flat boards, two anode flat plate, electron source, drive unit and shell, described negative electrode flat board comprises cathode base and cathode layer, described cathode base comprises two cards that are parallel to each other, described cathode layer part is covered in the outer wall card of described cathode base, two described negative electrode flat boards and two mutual stacking settings of described anode flat plate, two described anode flat plate are symmetrically set in respectively the outside of two described negative electrode flat boards, described anode flat plate comprises fluorescence coating, anode layer and anode substrate, described anode substrate is transparent material, described anode layer is covered in the inwall of described anode substrate, described fluorescence coating is covered in the inwall of described anode layer, described electron source is located at the cavity between described negative electrode flat board and described anode flat plate, described drive unit is used for driving two dull and stereotyped rotations of described negative electrode, dull and stereotyped and two the described anode flat plate of two described negative electrodes are all embedded in the inwall of described shell, two described negative electrode flat boards and two described anode flat plate and described shell form enclosed cavity.
2. a kind of feds as claimed in claim 1, is characterized in that, described negative electrode flat board is centrosymmetric, and described cathode base is the one in glass, plastics or pottery, and described cathode layer is the one in nesa coating or metal conductive film.
3. a kind of feds as claimed in claim 2, is characterized in that, described negative electrode flat board is circular, and described cathode layer is aluminium film, titanium film, silverskin or indium oxide tin film.
4. a kind of feds as claimed in claim 3, is characterized in that, described electron source is electron emitter, and described electron emitter is covered in the outer wall of described cathode layer, and described electron emitter is carbon nano-tube or nanometic zinc oxide rod array.
5. a kind of feds as claimed in claim 4, it is characterized in that, it is fan-shaped, petal, tree-like or humanoid that the cover graphics of described cathode layer is, and wherein said fan-shaped central angle is 15～25 °, and the cover graphics of described electron emitter is mated with described cathode layer.
6. a kind of feds as claimed in claim 5, it is characterized in that, described anode flat plate and the dull and stereotyped coaxial and form fit of described negative electrode, described anode substrate is the one in clear glass or transparent ceramic, described anode layer is nesa coating, described anode layer divides multiple regions, the cover graphics of the described anode layer in each region is mated with the cover graphics of described cathode layer, corresponding described fluorescence coating, the described fluorescence coating exciting light color difference in each region of covering of each described anode layer region surface.
7. a kind of feds as claimed in claim 1, it is characterized in that, described electron source is gas electronic source, the cavity of described gas electronic source distribution between described negative electrode flat board and described anode flat plate, and described gas electronic source is one or more in nitrogen, helium, argon gas.
8. a kind of feds as claimed in claim 1, it is characterized in that, described drive unit comprises rotating shaft, pad and motor, described rotating shaft runs through to be located between two described negative electrode flat boards, and dull and stereotyped coaxial with two described negative electrodes, described rotating shaft material is insulating material, described rotating shaft also runs through described pad, every described negative electrode flat board is all held between two described pads, relatively to fix described negative electrode flat board and described rotating shaft, described motor is used for driving described rotating shaft to rotate, and then drive two described negative electrode flat boards to rotate, the rotation period of described rotating shaft is 0.04～10 second.
9. a kind of feds as claimed in claim 1, is characterized in that, the inwall of described shell is established chute, and two described negative electrode flat boards and two equal adaptations of described anode flat plate are embedded in described chute.
10. a kind of feds as claimed in claim 9, is characterized in that, described shell also comprises ball, and described ball is located between described negative electrode flat board and described chute, to reduce the frictional force between described negative electrode flat board and described shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061152.8A CN104008952B (en) | 2013-02-27 | 2013-02-27 | A kind of feds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061152.8A CN104008952B (en) | 2013-02-27 | 2013-02-27 | A kind of feds |
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| Publication Number | Publication Date |
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| CN104008952A true CN104008952A (en) | 2014-08-27 |
| CN104008952B CN104008952B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310061152.8A Expired - Fee Related CN104008952B (en) | 2013-02-27 | 2013-02-27 | A kind of feds |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332155A (en) * | 2017-01-19 | 2018-07-27 | 欧司朗有限公司 | Laser active remote fluorescence module and its manufacturing method, group, device and headlight |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705416A (en) * | 2004-06-01 | 2005-12-07 | 东元奈米应材股份有限公司 | Double-sided display type field emission display |
| CN101101847A (en) * | 2006-07-05 | 2008-01-09 | 清华大学 | Double surface luminous field emission pixel tube |
| WO2011138837A1 (en) * | 2010-05-06 | 2011-11-10 | 高知Ｆｅｌ株式会社 | Field-emission light source |
| JP2012064464A (en) * | 2010-09-16 | 2012-03-29 | Kochi Fel Kk | Field-emission light source |
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2013
- 2013-02-27 CN CN201310061152.8A patent/CN104008952B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705416A (en) * | 2004-06-01 | 2005-12-07 | 东元奈米应材股份有限公司 | Double-sided display type field emission display |
| CN101101847A (en) * | 2006-07-05 | 2008-01-09 | 清华大学 | Double surface luminous field emission pixel tube |
| WO2011138837A1 (en) * | 2010-05-06 | 2011-11-10 | 高知Ｆｅｌ株式会社 | Field-emission light source |
| JP2012064464A (en) * | 2010-09-16 | 2012-03-29 | Kochi Fel Kk | Field-emission light source |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332155A (en) * | 2017-01-19 | 2018-07-27 | 欧司朗有限公司 | Laser active remote fluorescence module and its manufacturing method, group, device and headlight |
| CN108332155B (en) * | 2017-01-19 | 2021-08-24 | 欧司朗有限公司 | Laser activated remote phosphor module and method, set, apparatus and headlamp for making same |
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| Publication number | Publication date |
|---|---|
| CN104008952B (en) | 2016-04-20 |
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