WO2009153872A1 - Coil electrode fluorescent electric-discharge lamp pipe - Google Patents
Coil electrode fluorescent electric-discharge lamp pipe Download PDFInfo
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- WO2009153872A1 WO2009153872A1 PCT/JP2008/061203 JP2008061203W WO2009153872A1 WO 2009153872 A1 WO2009153872 A1 WO 2009153872A1 JP 2008061203 W JP2008061203 W JP 2008061203W WO 2009153872 A1 WO2009153872 A1 WO 2009153872A1
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- discharge lamp
- fluorescent discharge
- coil electrode
- fluorescent
- phosphor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
- H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/92—Lamps with more than one main discharge path
- H01J61/94—Paths producing light of different wavelengths, e.g. for simulating daylight
Definitions
- the present invention relates to a coil electrode fluorescent discharge lamp in which a coil electrode as an external electrode is arranged in a wound shape on the outer periphery of both ends of a glass tube having a fluorescent film coated on the inner surface.
- the present invention provides a coil electrode fluorescent discharge lamp that can greatly reduce power consumption and achieve a long life.
- a light bulb that uses a tungsten wire heated to a high temperature and uses visible light accompanying thermal radiation is widely used even today because the unit price is low and a wide range of luminance can be obtained.
- the energy conversion efficiency of tungsten bulbs is 0.8%.
- a fluorescent discharge lamp tube is attracting attention as a light source that replaces a light bulb because of its low energy conversion efficiency. Since it is said that the energy conversion efficiency of a fluorescent discharge lamp tube is nominally 20%, conversion to a fluorescent discharge lamp tube is underway as an indoor and outdoor illumination light source.
- the fluorescent discharge lamp tubes that are currently attracting attention are power-saving fluorescent discharge lamp tubes that are made using glass tubes with a diameter of 20 mm or less.
- the amount of light emitted from one fluorescent discharge lamp tube is proportional to the area of the fluorescent film, it is considered that the use of a fluorescent discharge lamp tube having a large fluorescent film area and a large tube diameter is a power saving type, but is commercially available.
- the energy-saving fluorescent discharge lamp tubes are made using glass tubes with a diameter of 20 mm or less. However, the reason for its scientific explanation cannot be found in published scientific papers or discharge handbooks.
- the phosphor powder that emits light with ultraviolet rays has a small number of Clarke indicating the presence of resources (abundance ratio is 0.003% or less) and low concentration (5% by weight or less) in the scattered sand particles.
- the very rare earth elements obtained by concentrating and refining the rare earth elements present in (1) by chemical methods are used as raw materials. Since one type of phosphor powder cannot produce white, phosphor films that individually produce phosphor powders that emit light in three colors, mechanically mix the phosphor powders, and apply phosphor powders that emit white light are applied. Is used.
- the fluorescent film used in the conventional fluorescent discharge lamp tube (diameter 30 mm) emits white light alone, and the resource-rich calcium halophosphate [3Ca 3 (PO 4 ) 2 CaFCl: Sb 3+ : Mn 2 + ] Although it is a phosphor, this phosphor film does not use a calcium halophosphate phosphor in a power-saving fluorescent discharge lamp tube in accordance with the rule of thumb that a fluorescent discharge lamp tube with a diameter of 20 mm or less does not emit light. Fluorescent films using rare earths are selected because they are fluorescent discharge lamp tubes with a diameter of 20 mm or less, and emit light brighter than the brightness of fluorescent discharge lamp tubes with a diameter of 30 mm. But no one has given that scientific basis.
- a fluorescent discharge lamp tube in which a linear fluorescent discharge lamp glass tube having a diameter of 10 mm is bent many times or spirally stored in a bulb-type glass bulb is called a power-saving fluorescent discharge lamp and is commercially available.
- the official power consumption of the fluorescent discharge lamp tube is the power consumption of the lighting lamp alone, and does not include the power consumption of the power supply circuit necessary for lighting.
- the actual power consumption of the fluorescent discharge lamp is the display power. From about 1.1 to 1.5 times.
- the actual power consumption of the nominal 12 watt power-saving fluorescent discharge lamp is 13 to 18 watts. It is not known why the actual power consumption varies from manufacturer to manufacturer even though the nominal wattage is the same. In order to make the reduction of power consumption a problem, this actual power consumption should be a problem.
- Fluorescent discharge lamp tubes currently on the market are metal electrodes (cathode and anode) that are placed in glass tubes and play the role of electron emission and electron collection, argon (Ar) gas and mercury (Hg) drops as discharge gas, And it has a simple structure including a fluorescent film coated on the inner wall surface of the tube with an appropriate thickness. It is inelastic collision of gas atoms by electrons moving in the gas space with kinetic energy that causes the gas to be discharged by the fluorescent discharge lamp tube based on this structure.
- HCFL hot cathode fluorescent discharge lamp
- first generation electron source that uses thermionic emission as discovered by Edison (1884) as a means of supplying electrons to a gas space in vacuum or low pressure
- second generation electron source was developed, and a cold cathode fluorescent lamp (CCFL) using a metal electrode ) Exists in the market.
- CCFL is used for fluorescent discharge lamp tubes with a tube diameter of 10 mm or less
- HCFL is used for fluorescent discharge lamp tubes of 10 mm or more.
- the HCFL and CCFL are not used in the fluorescent discharge lamp tube when the above electrodes are installed at both ends of the discharge tube of the tube.
- the cathode and the anode There is no distinction between the cathode and the anode, and the same phenomenon occurs at the electrodes at both ends of the fluorescent discharge lamp tube.
- gas discharge limited to a half cycle of alternating current a distinction occurs between the cathode and the anode.
- the discharge phenomenon of a fluorescent discharge lamp tube is a phenomenon that appears in a half cycle of alternating current.
- a typical example of the discharge in a fluorescent discharge lamp tube is that electrons emitted from the cathode move in one direction by the electric field (one direction) between the cathode and the anode and collide with gas atoms to generate a gas discharge.
- the probability that an electron traveling in one direction encounters a gas atom can be calculated by determining the number of gas atoms present in the fluorescent discharge lamp tube.
- the number of moles of gas atoms in the tube, the Avogadro number, the volume of the discharge tube and the volume of electrons moving in one direction can be calculated, and the probability that electrons traveling in one direction collide with gas atoms can be calculated. No calculations were made.
- the probability that an electron encounters a gas atom is one for a 1000 m movement. Since the length of the fluorescent discharge lamp tube is shorter than 1 m, electrons accelerated by a unidirectional electric field between the cathode and the anode in the fluorescent discharge lamp tube cannot collide with gas atoms, and therefore the gas atoms do not emit light. Thus, an error that did not clarify the basics important in examining the discharge mechanism of a fluorescent discharge lamp tube was made. The movement of electrons should not be examined during one period of alternating current, but how the electrons move in the electric field of the alternating electric field.
- the third generation electron source can be made in two ways, and the effect of both is the same.
- the first method is a phosphor particle layer insulated internal electrode in which phosphor particles are applied to a metal internal electrode in an appropriate thickness.
- the second method is a fluorescent discharge lamp tube made without using a metal internal electrode, which is realized by attaching an external electrode to the outer wall of the glass tube where the fluorescent film is located. This is called an electrode.
- a phosphor particle layer is formed on the inner surface of the glass tube facing the external electrode.
- the surface of the metal electrode is electrically insulated from the discharge space.
- the electrodes are collectively referred to as a discharge space insulation type electrode. The reason why a third generation electron source can be produced is as follows.
- a potential from a DC power source is applied to the discharge space insulation type electrode pair.
- the phosphor particles under the influence of the electric field from the electrodes are dielectrically polarized.
- the potential due to the charge in the dielectrically polarized particles is higher than the electrode potential.
- an AC electric field is applied to the surface at the high potential of the tip portion of the dielectrically polarized particle, the gas at the tip portion of the particle is ionized. Free electrons and free cations produced by ionization of the discharge gas are individually collected on the surface of the dielectrically polarized particles. That is, if the electrode is positive, the phosphor particle layer is negatively positively dielectrically polarized, and the free electrons are accumulated on the surface of the positively charged high potential.
- the phosphor particle layer is dielectrically polarized positively and negatively, and the free cations are accumulated on the surface of the negatively charged high potential.
- the electrons and cations collected in the gas spaces at the individual locations are used as the third generation electron source and the electron collection source (cation source), respectively.
- Neon gas is empirically known as an easily ionized gas. I confirmed this fact.
- the basis of the discharge gas is Ar gas, and when a mixed gas of Ar gas and Ne gas is used, the frequency of the AC power source necessary for gas discharge of the fluorescent discharge lamp tube using the discharge space insulation type electrode is made lower than the commercial frequency. Can be lowered.
- the mixing ratio of the Ne gas is measured by gas pressure and is in the range of 0.1 to 2 with respect to the Ar gas 1.
- a more preferred mixing ratio is in the range of 0.5 to 1.3, and a most preferred range is in the range of 0.8 to 1.1.
- the external electrode fluorescent discharge lamp tube does not discharge when connected to a DC power source.
- the external electrode fluorescent discharge lamp discharges only when an AC potential is applied to the external electrode. The reason is described below.
- the polarity of the potential applied to the external electrode changes, the polarity of the dielectric polarization of the phosphor particles is reversed.
- a slight potential difference is present in the gas space, electrons having a small mass are attracted to the potential difference and easily move in the gas space.
- the movement distance of a cation since the movement distance of a cation whose mass is 1000 times larger than that of an electron is smaller than the movement distance of an electron, it diffuses into the gas space and remains as a cation group. Electrons that have moved into the gas space due to the positive potential of the cation group in the gas space are attracted and moved in the gas space toward the cation group. Electrons that reach the cation group recombine with the cation and return to the gas atom. The movement distance of the cation group changes in inverse proportion to the frequency of the potential applied to the electrode. The application of the high frequency potential shortens the moving distance, and the moving electron distance becomes longer as the frequency increases.
- the external electrode fluorescent discharge lamp tube is generated by gas discharge due to the behavior of electrons moved to the gas space when an AC electric field is applied.
- the gas atoms that have undergone the electron collision either emit electrons into the gas space with heat emission (ionization) or raise the outermost electrons to the excitation order, resulting in a change in the state of the gas atoms that have undergone the collision.
- Electron collisions belong to inelastic collisions. Only excited gas atoms emit light. Conventional researchers and engineers interpret the detected light as gas discharge, so it was not possible to elucidate the distinction between light emission and ionization due to inelastic collision of gas atoms by mobile electrons.
- the external electrode CCFL with a small inguinal diameter is operated at a frequency of 20 kHz.
- the repetition of inelastic collision by the same electron is 5 x 10 5 times per unit length. Occurs and one electron collides with 5 x 10 5 gas atoms inelastically.
- the electrons that have reached the electron collection source (cation source) recombine with the cations and return to the gas atoms.
- the electron collection source cation source
- there is no metal electrode in the discharge path and therefore there is no voltage drop appearing immediately before the cathode and the anode in the discharge path.
- the power due to the voltage drop that was wasted in the fluorescent discharge lamp tube is eliminated, and the discharge power of the fluorescent discharge lamp tube is halved.
- Resource saving is also an important factor when lighting fluorescent discharge lamp tubes.
- the problem of resource saving relates to the time (life) that can be lit.
- the sputtering of the metal electrode and the adsorption of the residual gas on the surface of the fluorescent film, which have determined the life of the fluorescent discharge lamp tube are eliminated.
- an external electrode fluorescent discharge lamp tube whose lighting life is semi-permanent (initial luminance is maintained for 2,000,000 hours or more).
- the lifetime of a fluorescent discharge lamp tube using a conventional metal electrode is about 2000 hours.
- the accelerated cations collide with a minute area of the metal surface, and the local area of the metal electrode is heated instantaneously to a high temperature at which the metal evaporates. As a result, evaporation (sputtering) of the metal electrode occurs. Since the evaporated metal atoms adhere on the fluorescent film, the fluorescent film around the electrode becomes black with time. The evaporation of the metal electrode due to cation collisions determined the lifetime of the HCFL and CCFL fluorescent discharge lamp tubes, and the lifetime of defective lighting was around 2000 hours.
- PCT / JP2007 / 70431 (prior application of the present inventor)
- PCT / JP2007 / 74829 (prior application of the present inventor)
- USP 1,612,387 Japanese Utility Model Publication No. 61-126559 JP-A-4-284348 JP 2007-95531 A Japanese Patent Laid-Open No. 2002-8408 JP 2003-229092
- the fluorescent discharge lamp has been developed as described above, in particular, as a third generation electron source, a fluorescent glass tube having an external electrode attached to the outer wall of a fluorescent glass tube having a fluorescent film formed on the inner surface without using a metal internal electrode.
- a fluorescent glass tube having an external electrode attached to the outer wall of a fluorescent glass tube having a fluorescent film formed on the inner surface without using a metal internal electrode Realize a discharge lamp.
- the formation of the external electrode affects the power consumption and life.
- Patent Documents 3 to 7 related to the external electrode type fluorescent discharge lamp will be examined, and individual problems of the prior art will be described.
- the external electrode type fluorescent discharge lamp is also referred to as an electrodeless fluorescent discharge lamp because no internal electrode is used.
- Patent Documents 3 to 6 disclose conventional techniques based on conductor film formation.
- Patent Document 4 discloses an electrodeless fluorescent lamp in which metal conductors are formed on both ends of a fluorescent lamp tube.
- Patent Document 5 discloses an electrodeless fluorescent lamp having a metal coating film electrode as an external electrode. In the case of Patent Document 4, no specific description about the metal conductor is found, but in the case of Patent Document 5, an external electrode using a silver paste film is described. Further, Japanese Patent Application Laid-Open No.
- Patent Document 6 discloses an electrodeless fluorescent lamp in which external electrodes having a two-layer structure are formed on the outer periphery of both ends of a fluorescent glass container. This describes a laminated electrode of a silver paste film and a lead-free solder film.
- Patent Document 7 discloses an electrodeless fluorescent lamp in which end cap type external electrodes are fitted to the outer periphery of both ends of a fluorescent glass tube. This describes the use of aluminum, silver and copper as the cap electrode material.
- the external electrodes using the metal conductor film or metal cap disclosed in Patent Documents 3 to 7 have the following problems. That is, since a micro discharge phenomenon due to energization occurs between the electrode conductor and the outer peripheral surface of the glass, high heat is generated by arc discharge. Particularly in an external electrode using a metal cap, high heat is locally generated by arc discharge between metal particles in the cap. A glass tube that is locally heated to a high temperature above the softening point of the glass is pressurized by atmospheric pressure to form a pinhole that penetrates the glass tube wall. When the vacuum of the glass tube is broken due to the formation of pinholes, air enters the fluorescent discharge lamp tube, making it impossible to discharge gas, resulting in a problem that the life of the fluorescent discharge lamp is shortened.
- Patent Documents 3 to 7 are contacted or attached to the glass surface in a planar shape.
- a conductive wire is wound in a coil shape and contacted or attached to the glass surface in a linear shape.
- discharge lamps that use external electrodes (coil electrodes).
- Patent Document 8 Japanese Patent Application Laid-Open No. 2003-229092
- Patent Document 9 disclose a coil electrode fluorescent discharge lamp in which a tungsten wire or the like is wound around both ends of a glass tube. Compared with surface contact in metal conductor films, etc., it is thought that the discharge phenomenon is mitigated by wire contact with the glass surface when using a coil electrode. However, arc discharge occurred toward the glass surface between the coil wires, and the same vacuum break as that of the conductor film or the like occurred.
- the formation of an external electrode such as a metal conductor film incurs a film formation cost, so the coil electrode fluorescent discharge lamp is advantageous in terms of manufacturing cost. It was necessary to overcome the problem that the discharge phenomenon in the electrode affects the life and power saving.
- an object of the present invention is to provide a coil electrode fluorescent discharge lamp that does not cause a discharge phenomenon with a glass surface and can achieve power saving and long life.
- a fluorescent film is formed on the inner surface of a glass tube sealed at both ends, and a discharge gas is introduced into the glass tube.
- a discharge gas is introduced into the glass tube.
- the fluorescent film is also formed on the inner surface of the glass tube at a position where the coil electrode is opposed, and the coil electrode is a coil electrode fluorescent discharge lamp formed by winding an insulating coated electric wire in which the periphery of the electric wire is covered with an insulating layer. is there.
- n is the number of turns of the coil electrode
- the number of coil electrode fluorescent discharge lamps is one
- the number of turns of the coil electrode is n
- the gradient b n and d n is a coil electrode fluorescent lamp is b n> d n.
- the primary power W 1n is a coil electrode fluorescent discharge lamp having a deviation width of 5 (W) at maximum with the value of the approximate expression.
- the primary side power W 1n is a coil electrode fluorescent discharge lamp having a deviation width of 0.6 (W) from the value of the approximate expression.
- the primary side power of the high frequency power source is obtained.
- the secondary side voltage of the high frequency power source when the secondary side voltage of the high frequency power source is applied by connecting the N coil electrode fluorescent discharge lamps in parallel, the secondary side power of the high frequency power source is obtained.
- the gradient b N and d N is the coil electrode fluorescent lamp is b N> d N.
- a fluorescent discharge lamp with an internal electrode that has reached the end of its life is used as the fluorescent discharge lamp tube.
- An eleventh aspect of the present invention is the coil according to any one of the first to tenth aspects, wherein PL phosphor particles and CL phosphor particles are alternately distributed in the tube axis direction on the surface of the phosphor film.
- This is an electrode fluorescent discharge lamp.
- the twelfth aspect of the present invention is the coil electrode fluorescent discharge lamp according to the eleventh aspect, wherein the phosphor film is formed from a mixed powder of PL phosphor powder and CL phosphor powder.
- a thirteenth aspect of the present invention is a coil electrode fluorescent discharge lamp according to the twelfth aspect, wherein the phosphor film is formed from a mixed powder of a calcium halophosphate PL phosphor powder and a CL phosphor powder emitting a low electron beam. .
- a fourteenth aspect of the present invention is the coil electrode fluorescent discharge lamp according to the twelfth aspect, wherein the phosphor film is formed from a mixed powder of rare earth PL phosphor powder and CL phosphor powder emitting low electron beam.
- a base that fits into a socket of a conventional fluorescent discharge lamp fixture is attached to both ends of the coil electrode fluorescent discharge lamp tube, and the coil electrode
- This is a coil electrode fluorescent discharge lamp tube in which the fluorescent discharge lamp tube is detachable from a conventional fluorescent discharge lamp fixture.
- the fluorescent film is also formed on the inner surface of the glass tube at the position where the coil electrode is opposed, the fluorescent discharge is performed over the entire length of the glass tube. It can be used as a region, can be illuminated with high illuminance, and can contribute to power saving by efficient illumination.
- the coil electrode is formed by winding an insulating coated electric wire in which the periphery of the electric wire is covered with an insulating layer, the electric wire for an electrode is wound around the glass tube via the insulating layer, and the electric wire And no discharge phenomenon occurs between the glass tube and the surface of the glass tube.
- a coated insulating layer a heat-shrinkable resin
- a coated insulating layer a heat-shrinkable resin
- it adheres to the outer wall of the glass tube by pressure bonding. Accordingly, since no discharge phenomenon occurs, pinholes are not formed, air does not enter the sealed gas, the life of the fluorescent discharge lamp is not shortened, and the life can be extended. Furthermore, power saving can be realized by efficient power consumption.
- the insulating layer in the present invention can be formed using a coating material such as polyester, polyamide, polyurethane, polyvinyl butyral, or the like. More specifically, a vinyl-coated wire or an enameled wire can be used as the insulation-coated wire. When a commercial power source is used, when the diameter of the electric wire is 0.2 mm to 3 mm, for example, the thickness of the insulating layer may be 0.01 mm to 0.05 mm. If the coil electrode is formed in close contact with the outer peripheral surface of the glass tube to hold the glass tube, the holding portion of the glass tube can be dispensed with.
- a coating material such as polyester, polyamide, polyurethane, polyvinyl butyral, or the like. More specifically, a vinyl-coated wire or an enameled wire can be used as the insulation-coated wire.
- the thickness of the insulating layer may be 0.01 mm to 0.05 mm. If the coil electrode is formed in close contact with the outer peripheral surface of the glass tube to
- the electrodes at both ends of the fluorescent discharge lamp are constituted by discharge space insulating electrodes electrically insulated from the internal discharge space using the coil electrode, the metal electrode enters the discharge space. Electron injection was completely eliminated, and the electrode voltage drop caused by the electron injection was eliminated, succeeding in exhausting unnecessary power consumption accompanying the electrode voltage drop. In addition, since there is no electron injection, there is no sputtering phenomenon caused by collision of cations with metal electrodes, and electrode wear is exhausted and the life of the fluorescent discharge lamp tube is extended.
- Electrons that drive the discharge light emission are generated by ionization of the discharge gas by applying a high-frequency voltage, and the generated electrons and cations are accumulated by electric force in the vicinity of the discharge space insulation type electrode, and a third generation electron source ( Simply referred to as an electron source) and a cation source.
- the present inventor refers to this electron source as a third generation electron source, collides with a discharge gas in the process of electrons moving from the third generation electron source to the cation source, and emits light. Return to the electrically neutral discharge gas. In addition, the cycle of ionizing again by the alternating voltage, emitting light, and neutral gasification is repeated.
- the number of coil electrode fluorescent discharge lamps is one
- the number of turns of the coil electrode is n and the primary power of the AC power source is W 1n (W)
- W 1n a n + b n ⁇ n (a n, b n: constant) so established as an approximate expression
- appropriate selection of the primary electric power of the alternating current power supply by the turns of the coil electrode Therefore, it is possible to easily design the power consumption of the fluorescent discharge lamp.
- the electrode design can be easily performed by appropriately adjusting the number of turns of the coil electrode based on the approximate expression in accordance with the primary side power consumption.
- the number of coil electrode fluorescent discharge lamps is one
- the number of turns of the coil electrode is n and the secondary power of the AC power source is W 2n (W)
- W 2n c n + d n ⁇ n (c n, d n: constant) so established as an approximate expression
- appropriate selection of the secondary electric power of the alternating current power supply by the turns of the coil electrode Therefore, it is possible to easily design the power consumption of the fluorescent discharge lamp.
- the electrode design can be easily performed by appropriately adjusting the number of turns of the coil electrode based on the approximate expression in accordance with the secondary side power consumption.
- the slope b n and d n in the third embodiment is the b n> d n
- the AC power supply in accordance with the number of turns of the coil electrode The primary and secondary power can be selected with high accuracy, and conversely, the number of turns of the coil electrode can be optimally adjusted according to the primary and secondary power consumption.
- the cross-sectional diameter d (mm) of the electric wire is in the range of 0.26 (mm) ⁇ d ⁇ 1.6 (mm). Since the primary side power W 1n has a maximum deviation of 5 (W) from the value of the approximate expression, the primary side power of the AC power source is appropriately selected within the range of the deviation width. Accordingly, the cross-sectional diameter d of the electric wire can be varied within the above range, and the coil electrode can be formed with a large degree of freedom.
- the cross-sectional diameter d (mm) of the electric wire is in the range of 0.26 (mm) ⁇ d ⁇ 1.6 (mm). Since the primary side power W 1n has a deviation width of 0.6 (W) at maximum with the value of the approximate expression, the secondary side power of the AC power source is appropriately changed within the deviation width. According to selection, the cross-sectional diameter d of the electric wire can be varied within the above range, and the coil electrode can be formed with a large degree of freedom.
- An integrated coil electrode fluorescent discharge lamp capable of high-luminance light emission in which the coil electrode fluorescent discharge lamps are connected in parallel can be realized.
- the parallel connection configuration increases the heat retention effect in the discharge space and enables high-luminance light emission. At the same time, even if all the lamps are turned on at the same time, the power consumption can be reduced and the problem of power consumption can be solved at once to achieve power saving and high brightness emission at the same time. Electric light can be realized.
- the current detected on the input side of the power supply circuit is a current required to form an AC electric field in the fluorescent discharge lamp tube.
- the size is independent of the diameter of the discharge lamp tube and the length of the discharge lamp tube, and the value of the detected current is determined only by the physical properties of the fluorescent film, and the value varies depending on the physical properties of the fluorescent film in the range of 0.1A to 1A.
- the electric power that forms the high-frequency electric field is independent of the luminance of the fluorescent discharge lamp tube, and determines the power consumption of the fluorescent discharge lamp tube.
- the electrons involved in the light emission of the fluorescent discharge lamp tube are electrons taken out from the third generation electron source into the alternating electric field, and the amount thereof can be measured separately from the lighting power of the fluorescent discharge lamp tube, and the value is a maximum of 1 mA. Since it is 1 / 1,000 or less of the current (1A) required for forming the high-frequency electric field, the contribution to the power consumption of the fluorescent discharge lamp tube can be ignored. It has been found that the brightness of the fluorescent discharge lamp tube is determined by the mercury vapor pressure depending on the heat retention effect of the fluorescent discharge lamp tube. Conventionally, it was considered that the luminance of the fluorescent discharge lamp tube is related to the power consumption of the fluorescent discharge lamp tube, but the relationship is small. The inventors have been able to provide a fluorescent discharge lamp that extremely reduces power consumption through a new discovery that modifies conventional common sense from the basics.
- the discharge space insulation type electrode a group of fluorescent discharge lamps made of the same fluorescent film is arranged in a bundle, and each fluorescent discharge lamp tube arranged in a bundle is formed.
- a high-frequency electric field is formed in this manner, the power for forming an AC electric field in all the tubes of the fluorescent discharge lamp tube group is significantly reduced. That is, it is a discovery of the fact that the power consumption required for lighting a fluorescent discharge lamp is significantly reduced when the fluorescent discharge lamps are arranged in a bundle and integrated.
- the consumption of the single fluorescent discharge lamp tube The power is w watts.
- a plurality of fluorescent discharge lamp tubes (n) made of the same type of fluorescent film are arranged in a bundle in the vicinity of the fluorescent discharge lamp tube, the same strength is provided in all the fluorescent discharge lamp tubes arranged in a bundle (integrated type).
- AC electric field is induced.
- the power consumption W required to form a high-frequency electric field in all of the integrated fluorescent discharge lamp tubes is obtained by adding 1 watt to the supply power of one fluorescent discharge lamp tube in the fluorescent discharge lamp tube used in the experiment.
- the relationship W n + w is established regardless of the tube diameter of the fluorescent discharge lamp tube and the tube length of the fluorescent discharge lamp tube.
- the phosphor film becomes an electron beam emitting phosphor particle and a light emitting phosphor particle.
- the luminance from the integrated fluorescent discharge lamp is as many as the integrated number of the luminance of one fluorescent discharge lamp tube having a discharge space insulating electrode attached thereto.
- W 2N c N + d N ⁇ N (c N , d N : constant)
- the gradients b N and d N are b N > d N , this relationship is used to respond to the number of integrated coil electrode fluorescent discharge lamps.
- the primary and secondary power of the AC power supply is selected with high accuracy, and conversely, the number of coil electrode fluorescent discharge lamps is optimally adjusted according to the primary and secondary power consumption, and N
- an integrated coil electrode fluorescent discharge lamp that can emit light with high brightness by connecting the coil electrode fluorescent discharge lamps in parallel can be realized.
- one end of the coil electrode wire is connected to a power source, and the opposite wire is an open end.
- one end of the wire of the coil electrode of each discharge lamp can be connected in parallel to the power supply side, or one end of the wire of the coil electrode can be connected to the coil of another discharge lamp.
- one electric wire can be continuously wound around each discharge lamp.
- a fluorescent discharge lamp in which a fluorescent discharge lamp tube with an internal electrode that has reached the end of its lifetime is used as the fluorescent discharge lamp tube, and the external electrode is provided on the fluorescent discharge lamp tube with the internal electrode.
- Conventional fluorescent discharge lamp tubes with internal electrodes whose lifetime has been exhausted are mostly those in which the internal electrodes are worn by sputtering, in which case the discharge gas does not leak and is healthy.
- the external electrode system of the present invention can be driven as a fluorescent tube if a discharge gas exists in the discharge space.
- an external electrode is provided on the outer periphery of a fluorescent discharge lamp tube with an internal electrode that has reached the end of its life, it can be regenerated as a fluorescent tube.
- the number of fluorescent discharge lamp tubes to be discarded in Japan and the world is almost innumerable. If these fluorescent discharge lamp tubes are used in the present invention, an integrated type that is extremely inexpensive, environmentally friendly, and wastes resources.
- a fluorescent discharge lamp can be provided.
- a coil electrode fluorescent discharge lamp in which PL phosphor particles and CL phosphor particles are alternately dispersed in the tube axis direction on the surface of the phosphor film. Since the PL phosphor particles and the CL phosphor particles are alternately dispersed in the glass tube axis direction, a coil electrode fluorescent discharge lamp tube capable of rapid lighting and light emission in the entire region in the glass tube can be realized.
- a light emitting phosphor (PL phosphor) exists as a phosphor particle having a negative charge.
- the orbits of the accelerated electrons are bent into a gas space by PL phosphor particles having a negative charge on the fluorescent film, and a fluorescent discharge lamp tube that instantaneously turns on and discharges the gas of the fluorescent discharge lamp tube can be realized. Therefore, if the photoluminescent phosphor is disposed at a position where the accelerated electrons are to be bent, the negative charge of the photoluminescent phosphor at that position performs a bending action on the accelerated electrons.
- the magnitude of the negative charge can be variably adjusted, thereby accelerating the collision between the surface conduction electrons on the phosphor film and the discharge gas and realizing rapid lighting in the discharge space. Thus, it is possible to eliminate the delayed lighting that has been conventionally present.
- the phosphor particles having no negative charge include an electron beam emitting phosphor (CL phosphor).
- the low-voltage electron-emitting phosphor has a low surface contamination, has a property of not being negatively charged, and has a property of not being charged up.
- the phosphor film having no negative charge (CL phosphor) and the negatively charged phosphor particles (PL phosphor) are alternately arranged on the surface of the phosphor film, and the acceleration is performed at a plurality of locations on the phosphor film surface.
- a coil electrode fluorescent discharge lamp in which the phosphor film is formed from a mixed powder of PL phosphor powder and CL phosphor powder. If PL phosphor powder and CL phosphor powder are mixed and this mixed powder is applied to the inner surface of a fluorescent discharge lamp tube to form a phosphor film, PL phosphor particles and CL phosphor particles are formed on the phosphor film surface. Appear alternately. When CL phosphor powder having a small diameter is adhered to the particle surface of PL phosphor powder, the effect is very small and not practical. It is a necessary condition that the particle diameter of the PL phosphor powder is close to the CL phosphor particle diameter.
- the electron trajectory discharges at the innumerable points where the PL phosphor particles on the phosphor film are exposed as described in the eleventh embodiment.
- Coulomb is turned to the space side, and quick lighting and full lighting can be realized.
- a coil electrode fluorescent discharge lamp wherein the phosphor film is formed from a mixed powder of calcium halophosphate PL phosphor powder and CL phosphor powder emitting low electron beam.
- the unit price of the calcium halophosphate PL phosphor powder becomes about one-tenth, so a coil electrode fluorescent discharge lamp The manufacturing cost can be reduced. That is, since the calcium halophosphate PL phosphor does not use a rare rare earth element having a low Clark number, the phosphor cost can be reduced.
- a phosphor film is formed from a mixed powder of calcium halophosphate PL phosphor powder having a negative charge on the surface and CL phosphor powder having a negative charge on the surface or slightly negative charge and emitting light at a low voltage of 150 V or less.
- PL phosphor particles and CL phosphor particles are inevitably dispersed innumerably alternately on the surface of the fluorescent film in the glass tube axis direction. Conduction electrons are bent by the negative charges at the countless PL phosphor particles, and light is emitted. Since the region is the entire surface of the phosphor film, rapid lighting and light emission are possible. If inexpensive ZnO phosphor powder is used as the CL phosphor powder, further cost reduction can be realized.
- the present invention is not limited to ZnO phosphor powder, and the CL phosphor powder emits light at a low voltage of 150 V or less. If so, the same effect can be expected.
- a coil electrode fluorescent discharge lamp in which the phosphor film is formed from a mixed powder of rare earth PL phosphor powder and CL phosphor powder emitting low electron beam. Since the phosphor film is formed from a mixed powder of rare earth PL phosphor powder and CL phosphor powder, there is an effect that the manufacturing cost of the coil electrode fluorescent discharge lamp using the rare earth phosphor film can be reduced.
- Rare earth PL phosphor powder is a high-performance PL phosphor powder having a negative charge on the surface, but due to the recent rise in rare earth element materials, the production cost of fluorescent discharge lamp tubes using rare earth phosphor films is increasing. .
- the ZnO phosphor which is a CL phosphor that is relatively inexpensive and stable, is used as the CL phosphor powder of this embodiment, it is intended to reduce the manufacturing cost of the mixed phosphor powder.
- the ZnO phosphor has an extremely short decay time constant after being excited by ultraviolet rays until it emits light, so that it can emit light at high speed and has a characteristic of emitting bright CL even at a low voltage of 30 V or less.
- a fluorescent film is formed from a mixed powder of rare earth PL phosphor powder having a negative charge on the surface and ZnO phosphor powder having no negative charge on the surface, it is inevitably caused by PL fluorescence on the surface of the fluorescent film in the direction of the glass tube axis.
- the body particles and the CL phosphor particles are dispersed innumerably alternately. Conduction electrons are bent by the negative charges at the countless PL phosphor particles, and light is emitted. Since the region is the entire surface of the phosphor film, rapid lighting and light emission are possible.
- the coil electrode fluorescent discharge lamp tube according to the present invention fits into both ends of the external coil electrode fluorescent discharge lamp tube and fits into the socket of the lighting fixture of the conventional fluorescent discharge lamp tube. Install the base.
- the size of the power source necessary for lighting the coil electrode fluorescent discharge lamp tube is smaller than a fraction of the size of the power source required for lighting the conventional fluorescent discharge lamp tube.
- Can be stored in the storage. Accordingly, the conventional fluorescent discharge lamp tube lighting device is used as it is without changing the lighting fixture used in the past, and the coil electrode fluorescent discharge lamp tube is simply replaced with the conventional fluorescent discharge lamp tube.
- the high frequency electric field forming current does not contribute to the light emission of the fluorescent discharge lamp, but determines only the power consumption when the fluorescent discharge lamp tube is turned on.
- the gas discharge is caused by electrons from the electron source moving in the gas space due to resonance with the high frequency electric field, but this electron current has a small amount of current (1 mA or less) and is substantially necessary for lighting the fluorescent discharge lamp tube. The power is not affected.
- the high-frequency electric field formed in one fluorescent discharge lamp tube is that when a plurality of the same type of fluorescent discharge lamp tubes are placed around the fluorescent discharge lamp tube, a high-frequency electric field is also induced in the fluorescent discharge lamp tubes placed in the vicinity.
- the value of the current flowing in the power supply circuit connected to the electrode of the first fluorescent discharge lamp tube is only slightly increased by the number of fluorescent discharge lamp tubes placed in the vicinity. If the fluorescent discharge lamp tube only has a high frequency electric field, the fluorescent discharge lamp tube does not emit light. In order for the fluorescent discharge lamp tube to emit light, electrons must be injected into the high-frequency electric field. The conditions under which electrons can be injected into the high frequency electric field were investigated.
- the high frequency formed in the electrode fluorescent discharge lamp tube is determined by the high frequency formed in the electrode fluorescent discharge lamp tube. It varies significantly with the magnitude of the electric field.
- the magnitude of the high-frequency electric field formed in the electrode fluorescent discharge lamp tube is examined by monitoring the current detected on the input side of the power supply circuit. When a high frequency potential is applied to the external electrode, the current detected by the power supply circuit varies greatly depending on the contamination (charging) state of the fluorescent film. When the surface of the phosphor particles constituting the phosphor film is severely contaminated with fine particles of an electrical insulator, the current detected by the power source is around 1 A.
- the detection current is minimized and decreases to near 0.1A. It is difficult to light a fluorescent discharge lamp tube having a detection current of 0.7 A or more. That is, when the detection current is 0.7 A or more, electrons from the third generation electron source cannot be injected into the high frequency electric field. When the detection current is 0.5 A or less, electrons can be easily injected into the high-frequency electric field formed in the fluorescent discharge lamp tube. As a result, the external electrode type fluorescent discharge lamp tube is lit.
- the optimal conditions for injecting electrons from the third generation electron source into the high frequency electric field were complicated. If there is no contamination of the electrical insulator on the phosphor particle surface, the electrons injected into the high frequency electric field selectively take the surface conduction of the phosphor film, reach the cation source and disappear. As a result, the surface conduction electrons do not collide with gas atoms, and the fluorescent discharge lamp does not emit light. When protrusions are formed on the fluorescent film, surface-conductive electrons collide with the protruded phosphor particles.
- the half period of the applied electric field is set to zero potential, only the movement of electrons traveling in only one direction occurs, and only the cathode side of the projected phosphor particles emits light, and no light is emitted on the anode side.
- the light emission of the projected phosphor particles can be identified as CL light emission by electron beam irradiation. This observation confirms the presence of surface conduction electrons that are accelerated in one direction on the fluorescent film. If the surface of the phosphor particles is heavily contaminated with an electrical insulator, electrons from the third generation electron source are subjected to Coulomb repulsion from the negative electric field of the charged charge of the contaminant, and gas emission does not enter the gas space. Does not happen.
- the characteristics of the complex fluorescent film described above can be controlled by the following method.
- the fluorescent film of a fluorescent discharge lamp tube is made by mixing a low voltage electron beam emission (CL) phosphor and a light emission (PL) phosphor having the same particle size, electrons from the third generation electron source are easily converted into the phosphor film.
- the detection current of the power supply circuit required to form a high frequency electric field in the fluorescent discharge lamp tube is 0.5 A or less.
- the fluorescent film has a white body color and does not absorb light with respect to visible light emitted from the fluorescent film, if a gap is provided in the bundled fluorescent discharge tube, the fluorescent film of the fluorescent discharge lamp tube placed inside All the light emitted from the can be taken out. Since a plurality of fluorescent discharge lamps emit light only by slightly increasing the power consumption of a single fluorescent discharge lamp, an integrated fluorescent discharge lamp that emits light with high power and high luminance has been developed. That is, the power consumption of an integrated fluorescent discharge lamp made by integrating 10 fluorescent discharge lamp tubes is one-fifth of the power required for lighting the 10 fluorescent lamps, and only the luminance is 10 times higher.
- the fluorescent discharge lamp tube whose life has expired is relighted.
- the fluorescent discharge lamp tube whose lifetime has been exhausted is completely regenerated and emits light with the same brightness as the newly manufactured external electrode fluorescent discharge tube.
- the life of the external electrode fluorescent discharge lamp tube becomes semi-permanent and the resource recovery cycle of the fluorescent discharge lamp tube becomes very long.
- FIG. 6 It is a block diagram which shows a coil electrode fluorescent discharge lamp. It is a schematic sectional drawing of the coil electrode fluorescent discharge lamp shown by FIG. It is a figure which shows the relationship between the primary side electric power W1n (W) of the high frequency power supply 6, and the winding number n of a coil electrode. It is a figure which shows the relationship between the primary side electric power W1n (W) of the high frequency power supply 6, and the wire diameter d of the electric wire for coil electrodes. It is a figure which shows the relationship between the primary side electric power W1n (W) of the high frequency power supply 6, and lighting time.
- FIG. 3 is a configuration diagram of an integrated coil electrode fluorescent discharge lamp in which n coil electrode fluorescent discharge lamps are connected in parallel and a secondary side voltage of a high-frequency power source 6 is applied to simultaneously light up. It is a block diagram of the integrated coil electrode fluorescent discharge lamp which formed the coil electrode of each coil electrode fluorescent discharge lamp with the common electric wire, and was connected in parallel.
- a fluorescent discharge lamp in which the bundled fluorescent discharge lamp tubes are integrated can be obtained.
- Bright light emission can be obtained from the integrated fluorescent discharge lamp by a multiple of the integrated number.
- a fluorescent discharge lamp tube with a built-in metal electrode that is, a non-surface-insulated internal electrode
- power consumption is reduced. It increases by a multiple of the number of discharge lamp tubes that accumulate. This is the same as the case where the fluorescent discharge lamp tube is caused to emit light individually, and no advantage is obtained.
- high power for extracting electrons from the metal cathode is required, so that a large lighting circuit is required, so there is no practicality.
- An integrated fluorescent discharge lamp that is formed by bundling a plurality of fluorescent discharge lamp tubes that use a third generation electron source and connecting electrodes in parallel emits light just by slightly increasing the power required to light one lamp. The luminance increases remarkably with the number of fluorescent discharge lamp tubes that accumulate.
- a fluorescent discharge lamp using a coil electrode as an external electrode as a third generation electron source without using a metal internal electrode.
- the fluorescent film applied to the inner wall surface of the tube can be applied to the end of the tube.
- the electrodes necessary for the discharge are attached to the outer wall surface of the glass tube end of the discharge lamp.
- the third generation electron source is involved in the discharge.
- One of the features of using an external electrode fluorescent discharge lamp tube with a built-in third generation electron source is the miniaturization of the power supply circuit for lighting the discharge lamp.
- the first reason why the lighting power supply circuit can be reduced in size is that a high voltage circuit required for taking out electrons from the metal cathode electrode is unnecessary.
- the second reason is that electrons injected into the phosphor film easily discharge gas. In order to turn on the conventional fluorescent discharge lamp tube, unless an electron having an energy to overcome the negative electric field (10 5 V cm ⁇ 1 ) formed by the outermost electrons of the gas atom is produced, the electron enters the gas space and is discharged. There were difficulties that could not start.
- the power supply circuit of the external electrode fluorescent discharge lamp significantly reduces the volume of the lighting circuit of the conventional fluorescent discharge lamp (diameter 20 mm) using metal electrodes, and is reduced to one fifth or less.
- the present invention encompasses all AC power sources that cause external electrode fluorescent discharge lamps to emit light using AC power sources.
- the formation of a high-frequency electric field is easy in a straight tube type fluorescent discharge lamp tube, but in a curved tube type fluorescent discharge lamp tube, the high-frequency electric field is likely to be disturbed by a curved portion and may not reach the entire tube instantaneously.
- a curved tube type fluorescent discharge lamp tube in which the formation of a high-frequency electric field extends over the entire tube is also included in the present invention. For this reason, the following description of the present invention uses a straight tube fluorescent discharge lamp tube.
- the external electrode fluorescent discharge lamp does not light even if a large current caused by the formation of a high frequency electric field flows through the power supply circuit.
- a high-frequency electric field is formed in the fluorescent discharge lamp tube. This fact can be confirmed because a high-frequency electric field can be detected even in a small area at a location 10 cm away from the wall of the fluorescent discharge lamp tube in the central part in the vertical axis direction.
- the electrical insulator When the phosphor particle surface to be used is contaminated with an electrical insulator, the electrical insulator is generally charged. Negative charges due to charging of substances contaminated on the surface of the phosphor particles also spread in the gas space. Since the kinetic energy of the electrons extracted from the third generation electron source is close to zero, the electrons with small kinetic energy are subjected to clone repulsion due to the negative charge of the polluted material, do not enter the gas space, and the fluorescent discharge lamp does not discharge. .
- the conventional discharge gas lighting method (applying high voltage instantaneously) is used for a moment, the charge of the pollutant disappears partially, so the electrons of the third generation electron source can enter the gas discharge path, and the gas discharge However, the intensity is weak and the discharge disappears over time. Even if gas discharge appears, the current flowing in the power supply circuit due to the formation of the high-frequency electric field remains unchanged. It shows that the power supply current that flows when a high frequency is applied to the external electrode fluorescent discharge lamp is much larger than the electron current required for gas discharge.
- the current flowing through the power supply circuit is reduced to less than half.
- the external electrode fluorescent discharge lamp tube is turned on instantaneously when a high frequency is applied from the power supply. Since electrons involved in emission in the positive column is repeatedly used without disappearing in the discharge path (10 5 times), the number of electrons required per unit time is extremely small.
- the excited gas is discharged, it returns to the gas atoms and has the opportunity for re-excitation. In gas statistics, gas excitation due to inelastic collision of electrons is treated as replacement sampling.
- the maximum number of electrons (current) involved in gas excitation per unit time is about one-thousandth ( ⁇ 1 mA) of the power supply current measured on the input side of the power supply circuit.
- Gas number of atoms excited in the number of electrons per unit time becomes 10 22 longitudinal per unit discharge space.
- the excitation gas emits one UV photon and returns to the ground state.
- the UV light emitted in the gas is converted into visible light by the fluorescent film, but the quantum efficiency is 1 in the practical fluorescent film, so the number of excited gases corresponds to the number of photons emitted from the fluorescent film.
- the number of photons emitted in a unit discharge space per 10 22 before and after the visible light from the fluorescent lamp is sufficient photon number as a light source for illuminating a room with daylight illumination. From the above calculation, it is clear that the current flowing in the external electrode fluorescent discharge lamp tube is mainly determined by the power supply current required for the high-frequency electric field formed in the external electrode fluorescent discharge lamp tube, and is not the number of electrons that excite gas atoms. It becomes.
- the inventors discovered the important role played by the difference between the number of electrons moving in the discharge tube and the power supply current that forms a high-frequency electric field in discussing the discharge of the fluorescent discharge lamp tube by the above-mentioned calculation and experimental facts, to save power
- the fluorescent film that forms a high-frequency electric field in the fluorescent discharge lamp needs to be optimized.
- the power consumed by the external electrode type fluorescent discharge lamp tube is determined by the influence of the electrical characteristics of the fluorescent film, the power consumption of the external electrode type fluorescent discharge lamp tube can be minimized by selecting the fluorescent film. Also, since the power consumption of the external electrode type fluorescent discharge lamp tube fluctuates depending on the degree of contamination of the fluorescent film, the external electrode type fluorescent discharge lamp tube is lit if the production lot is different even if the same type of phosphor powder is used. The power fluctuates. Furthermore, even if the same kind of phosphor is used and the emission color of the phosphor film is changed, the lighting power fluctuates. Even if the same mixed phosphor powder is used, the lighting power of the external electrode fluorescent discharge lamp varies slightly from tube to tube. For product management during the manufacture of fluorescent discharge lamps, it is necessary to take into account fluctuations in the surface of the phosphor particles.
- the current flowing from the third generation electron source into the high-frequency electric field in the external electrode type fluorescent discharge lamp tube described above has an electrical insulator between the external electrode connected to the power supply circuit and the gas in the external electrode type fluorescent discharge lamp tube. It is clear that the electrons involved in the discharge in the gas space are not directly donated from the power supply circuit and are self-raised in the gas space. When it is connected to the electrode, it flows in the power supply circuit that is power necessary for forming a high-frequency electric field, and a current required for it is detected by the lighting power supply circuit.
- the electric power necessary for forming a high-frequency electric field and the electron current involved in the gas discharge cannot be separated, and the number of excited electrons and gas atoms cannot be optimized.
- the present inventors have been able to separate the power necessary for forming a high-frequency electric field flowing in the power supply circuit when the fluorescent discharge lamp tube is lit and the electron current involved in the gas discharge. This is a great discovery in studying gas discharge in fluorescent discharge lamp tubes.
- the extracted electrons are put into the gas atom space unless the kinetic energy of the electrons extracted from the metal electrode is made larger than the negative electric field due to the outermost electrons of the gas atoms filling the gas space. Therefore, it was difficult to turn on the gas discharge.
- the work of the power supply circuit which has played a major role in the lighting of the metal electrode fluorescent discharge lamp tube and occupied a large volume, is unnecessary in the fluorescent discharge lamp tube when a third generation electron supply source is used. Therefore, unnecessary main circuits required for lighting can be removed from the power supply circuit, and the power consumption of the power supply circuit is less than one-fifth of the conventional power consumption. Accordingly, the volume of the power supply circuit device is less than one-fifth that of a conventional fluorescent discharge lamp tube, and can be stored in a small space. At the same time, the unit price of the power supply circuit is extremely reduced.
- the high-frequency electric field formed in the external electrode fluorescent discharge lamp tube varies greatly depending on the electrical characteristics of the fluorescent film.
- the electrical characteristics of the phosphor particles constituting the phosphor film are important.
- the inventors of the present invention have a case where the phosphor film contains about 30% by weight of an electron beam emission (CL) phosphor that emits light with a low voltage electron beam, and contains 70% by weight of a PL phosphor that emits light only by light emission (PL)
- CL electron beam emission
- PL light only by light emission
- the lighting power varies depending on the surface state of the blue and green light emitting phosphor particles.
- the critical voltage for electron beam emission is 110 V. Therefore, when making a phosphor film using this red mixed rare earth phosphor powder, red yttrium oxide is used.
- the lighting power of the fluorescent discharge lamp decreases.
- the phosphor powder used for the light bulb color does not use the yttrium oxide phosphor, but uses another red component phosphor (having a high critical voltage), so that the current of the power supply circuit increases.
- the critical emission voltage 110V of the yttrium oxide red phosphor is still high.
- the effect of the CL phosphor is that the current of the power supply circuit is minimized when CL phosphors emitting at around 20 V are mixed.
- a CL phosphor there is a ZnO low voltage CL phosphor (critical voltage 10 eV).
- a fluorescent film made of a white light emitting calcium halophosphate phosphor containing 30% by weight of ZnO phosphor and having no surface treatment is used, even a fluorescent discharge lamp having a thin tube emits light brightly.
- a white light emitting calcium halophosphate phosphor containing 30% by weight of a ZnO low voltage CL phosphor is used for illumination purposes.
- the lighting power of one external electrode fluorescent discharge lamp tube is less than half of the power consumption of the power circuit required for lighting a fluorescent discharge lamp with a normal metal electrode.
- one external electrode fluorescent discharge lamp tube with low power consumption is turned on, and another external electrode fluorescent discharge lamp tube made of the same kind of fluorescent film is placed around it, A high frequency electric field is also induced in the external electrode fluorescent discharge lamp tube.
- the electrodes of the two external electrode fluorescent discharge lamp tubes are electrically connected in parallel, the second fluorescent discharge lamp tube is also lit and emits light with the same luminance as the first external electrode fluorescent discharge lamp tube.
- FIG. 1 is a configuration diagram showing a coil electrode fluorescent discharge lamp.
- FIG. 2 is a schematic cross-sectional view showing a coil electrode.
- This fluorescent discharge lamp tube 1 has a fluorescent film 8 formed on the inner surface thereof, a glass tube 2 sealed at both ends, coil electrodes 3 and 4 wound around the both ends of the glass tube 2, and a commercial power source 7.
- the high-frequency power source 6 generates a high-frequency voltage from the power source.
- a discharge space filled with a discharge gas is formed as a cavity.
- the glass tube 2 is filled with argon (Ar) gas serving as a discharge gas and filled with mercury (Hg) droplets.
- Ar argon
- the coil electrodes 3 and 4 are a kind of discharge space insulation type electrode in which an electric wire is wound around the left and right ends of the outer peripheral surface of the glass tube four times. As shown in FIG. 2 (2B), each coil electrode is made of an insulation-coated electric wire in which the periphery of the electric wire 9 is covered with an insulating layer 10, the terminal end is an open end, and the winding side is a voltage application line 5 as a high-frequency power source 6. It is connected to the output side.
- the coil electrodes 3 and 4 are enamel-coated wires or vinyl-coated wires. Since the coil electrodes 3 and 4 are used as the external electrodes, they can be easily manufactured only by winding the end portion of the glass tube as compared with the cap electrode or the electrode film.
- a high-frequency voltage from a high-frequency power source 6 can be applied to the coil electrodes 3 and 4 to discharge the discharge gas and light it.
- the fluorescent film 8 formed on the inner surface of the glass tube 2 is also extended to the opposing surfaces of the coil electrodes 3 and 4, and this extended portion is used as the phosphor particle layers 11 and 12. Called.
- the phosphor film 8 is formed from a mixed phosphor of PL phosphor powder and CL phosphor powder. On the surface of the phosphor film 8 facing the discharge space, PL phosphor particles are arranged dispersed in the tube axis direction.
- the operation of the third generation electron source and cation source in the coil electrode fluorescent discharge lamp 1 will be described. It is considered that a positive potential is applied to the coil electrode 3 and a negative potential is applied to the coil electrode 4 at a certain moment when a high-frequency voltage is applied by the high-frequency power source 6.
- the phosphor particle layers 11 and 12 are insulators, they are dielectrically polarized with a reverse polarity. That is, the phosphor particle layer 11 facing the coil electrode 3 is negatively positive and dielectrically polarized, and the phosphor particle layer 12 facing the coil electrode 4 is positively and negatively dielectrically polarized.
- the potential of the positive charge dielectrically polarized on the phosphor particle layer 12 is several times higher than the positive potential of the coil electrode 3.
- the discharge gas Ar is ionized by the high-frequency electric field to become e ⁇ and Ar + , and the electron e ⁇ is accumulated on the phosphor particle 11 side having the highest positive potential in the tube by the Coulomb attractive force to form an electron source.
- the electron source constitutes the third generation electron source in the present invention.
- Ar + is on the coil electrode 4 side due to Coulomb attraction, and is accumulated on the phosphor particle layer 12 side having the highest negative potential in the tube to form a cation source.
- the electron e ⁇ of the electron source goes to the cation source, repeats inelastic collision with the gas atoms in the discharge space without disappearing, advances while drawing the electron orbit, and combines with Ar + to neutral Ar. Return.
- the present invention since electrons are not injected from an external circuit, no electrode voltage drop occurs, and power consumption can be reduced accordingly. Further, since the coil electrodes 3 and 4 are separated from the gas space by the glass tube wall, there is no cation collision, sputtering does not occur, and a long life is achieved. That is, according to the present invention, it is possible to realize the exhaustion of the electrode voltage drop and the sputtering.
- FIG. 3 shows the relationship between the primary power W 1n (W) of the high-frequency power source 6 and the number of turns n of the coil electrodes 3 and 4.
- W the primary power
- the primary power was measured when the number of turns n was changed to 1, 5, and 10.
- Example of modification to a coil electrode fluorescent discharge lamp using a fluorescent discharge lamp tube with an internal electrode as a fluorescent discharge lamp tube to which a coil electrode is applied see (3A) to (3C)
- 3D the fluorescent discharge lamp tube with an internal electrode is changed to a coil electrode fluorescent discharge lamp
- the diameter of the metal wire of the insulation coated wire is changed to 0.26, 0.5, 0.8, 1.6 ⁇ (mm).
- (3A) to (3C) indicate the power at the initial lighting, and the power after 30 minutes and 60 minutes.
- (3D) to (3F) indicate the power at the beginning of lighting, after 30 minutes, and after 60 minutes for defective products.
- FIG. 4 shows the relationship between the primary power W 1n (W) of the high-frequency power supply 6 and the wire diameter d of the coil electrode insulation-coated wire.
- the wire diameter d was changed to 0.26, 0.5, 0.8, and 1.6 (mm), and the primary power of the AC power source 6 was measured.
- the number n of turns was changed to 1, 5, and 10, and a new fluorescent discharge lamp tube wound with a coil electrode (see (4A)) and An example (see (4B)) modified to a fluorescent discharge lamp tube is shown.
- (4A) and (4B) show the electric power after 60 minutes of lighting, respectively, by changing a new and exhausted fluorescent discharge tube to a coil electrode fluorescent discharge lamp tube.
- the primary power W 1n (W) is stable and a lighting driving state can be obtained regardless of the fluorescent discharge lamp tube before modification. That is, it was found that the primary power W 1n (W) hardly depends on the wire diameter d.
- FIG. 5 shows the result of measurement of the relationship between the primary side power W 1n (W) of the high frequency power source 6 and the lighting time t using the diameter d of the metal wire of the coil winding as a parameter.
- a new fluorescent discharge lamp tube is modified as a fluorescent discharge lamp tube wound with a coil electrode (see (5A) to (5D)
- the fluorescence that has expired is exhausted.
- FIG. 6 uses a single coil electrode fluorescent discharge lamp tube, and examines changes in the primary side power W 1n (indicated by the variable y) and the number of turns n (indicated by the variable x) at the time of lighting, and between y and x It was clarified that there is a wire diameter relationship.
- the other empirical formulas for d are as shown in FIG. Therefore, when the number n of turns of the coil electrode is determined based on the empirical formula, the primary power of the high frequency power supply 6 can be determined, and the power consumption of the coil electrode fluorescent discharge lamp tube can be easily designed. Conversely, the electrode design can be easily performed by appropriately determining the number of turns of the coil electrode based on the empirical formula in accordance with the primary side power consumption.
- the primary power W 1n (W) is the maximum value of the approximate expression and 5 (W). Accordingly, the primary side power of the high frequency power source 6 can be appropriately selected within the range of the maximum fluctuation range, and the wire diameter d can be varied within the range accordingly, and the degree of freedom in forming the coil electrode is great.
- the primary side power of the high frequency power source 6 can be appropriately selected within the range of the maximum fluctuation range, and the wire diameter d can be varied within the range accordingly, and the degree of freedom in forming the coil electrode is great.
- FIG. 7 shows changes in the secondary side power W 2n (indicated by the variable y) and the number of turns n (indicated by the variable x) at the beginning of lighting when the fluorescent discharge lamp is a single unit, and is a linear function of y and x.
- W 2n c n + d n ⁇ n (c n , d n : constant) is also established for the secondary side power, similarly to the primary side power.
- the secondary power of the high-frequency power source 6 can be appropriately determined by the number of turns of the coil electrode, and the power consumption of the coil electrode fluorescent discharge lamp can be designed easily.
- the electrode design can be easily performed by appropriately determining the number of turns of the coil electrode based on the approximate expression according to the secondary side power consumption.
- the value of the empirical formula of the secondary power W 2n increases by 0.6 (W) depending on the value of d even when the number of turns n is the same. Therefore, the secondary power of the AC power supply is appropriately determined within the range of fluctuation width ⁇ W depending on the d value, and the cross-sectional diameter d of the wire can be varied within the range accordingly.
- the advantage of having a large degree of freedom in selecting the coil electrode of the coil electrode fluorescent discharge lamp was clarified.
- the primary and secondary power of the high-frequency power source 6 can be accurately selected according to the number of turns of the coil electrode, and conversely, according to the primary and secondary power consumption. The number of turns of the coil electrode can be determined optimally.
- FIG. 8 shows an integrated coil electrode fluorescent discharge lamp in which n coil electrode fluorescent discharge lamps are connected in parallel and a secondary side voltage of the AC power source 6 is applied to simultaneously turn them on.
- Each of the glass tubes 14a, 14b to 14n is formed with coil electrode pairs 15a and 16a,..., 15n and 16n made of insulation-coated electric wires at both ends. A secondary side voltage is supplied.
- the coil electrode of each coil electrode fluorescent discharge lamp tube is connected in parallel to the voltage application line 13.
- FIG. 9 shows an integrated coil electrode fluorescent discharge lamp in which one end side of a coil electrode wire is set as a starting side of a coil electrode of another discharge lamp, and a single insulation-coated wire is continuously wound around each discharge lamp in parallel.
- Each of the glass tubes 17a, 17b to 17n has coil electrode pairs 18a and 19a,..., 18n and 19n formed at both ends, and a secondary side voltage is supplied to each coil electrode pair through a voltage application line 21. Is done.
- the voltage application line 21 which consists of an insulation coating electric wire is used for the electric wire of each coil electrode, and the integrated coil electrode fluorescent discharge lamp is connected in parallel by the single electric wire.
- FIGS. 10 and 11 show one high-frequency power supply 6 for the integrated coil electrode fluorescent discharge lamp composed of a plurality of coil electrode fluorescent discharge lamps with respect to the number of fluorescent discharge lamps (hereinafter referred to as the number of fluorescent lamp tubes). Changes in the secondary power W 1N (W) and the secondary power W 2N (W) were examined including the coil electrode fluorescent discharge lamp alone.
- FIG. 10 shows power measurement results for the integrated coil electrode fluorescent discharge lamp using the parallel connection method of FIG. In this measurement, an integrated coil electrode fluorescent discharge lamp in which eight coil electrode fluorescent discharge lamps were connected in parallel was used.
- (10A) shows the primary side power W 1N (W) and the secondary side power W 2N (W) at the beginning of lighting for the fluorescent lamps with the fluorescent lamp numbers 1 to 8.
- the power consumption of each coil electrode fluorescent lamp tube is in a range where the fluctuation can be ignored when it is a single unit.
- (10B) is the primary power W 1N (W) and the secondary power at the beginning of lighting when the number of integrations (upper limit 8) is increased by connecting the coiled electrode fluorescent lamp tubes shown in (10A) in parallel.
- W 2N (W) is shown.
- the primary power W 1N (W) and the secondary power W 2N (W) (expressed by the variable y) increased with an increase in the number of fluorescent lamp tubes N (expressed by the variable x), and showed linear dependence.
- FIG. 11 shows the measurement results of W 1N and W 2N obtained with the integrated coil electrode fluorescent discharge lamp tube by the connection method using one electric wire shown in FIG.
- Changes in the primary power W 1N and the secondary power W 2N of the AC power source 6 are shown when the number N of coil electrode fluorescent discharge lamp tubes is 1, 2, and 3 (the total number is 3).
- W 1N a N + b N ⁇ N (a N , b N : constant) is established as an approximate expression for the primary side power
- N coil electrode fluorescent discharges are based on the approximate expression of the primary side power.
- An integrated coil electrode fluorescent discharge lamp tube in which lamp tubes are connected in parallel to enable high-luminance emission can be realized.
- W 2N c N + d N ⁇ N (c N , d N : constant) is established as an approximate expression, and therefore, based on the approximate expression of the secondary power.
- an integrated coil electrode fluorescent discharge lamp in which N coil electrode fluorescent discharge lamps are connected in parallel to enable high luminance light emission can be realized.
- the gradients b N and d N have a relationship of b N > d N.
- b N / d N 5 to 7, and this range further expands as the type of fluorescent lamp changes.
- the primary and secondary power can be accurately selected according to the number of constituent fluorescent discharge lamp tubes, and conversely, the constituent fluorescent light is matched to the primary and secondary power consumption. It is also possible to optimally adjust the number of discharge lamps.
- FIG. 12 shows changes in secondary power when a plurality of commercially available internal electrode type fluorescent discharge lamps and high frequency power supplies used therein are converted into integrated fluorescent discharge lamps using coil electrodes.
- Reason for slope d N of the respective companies fluorescent lamp are different are considered to be fluorescent film materials companies fluorescent lamps are different. Therefore, by selecting a fluorescent membrane material to provide a smaller gradient d N, it is possible to achieve the further power saving effect. Therefore, similar to the measurement results shown in FIGS. 10 and 11, the linear dependence on the number of constituent fluorescent discharge lamps is recognized for the secondary power of each company fluorescent lamp. This also means that the primary power of each company fluorescent lamp also has a linear dependence.
- N coil electrode fluorescent discharge lamp tubes are formed based on the above linear relational expression. Can be connected in parallel to achieve an integrated coil electrode fluorescent discharge lamp tube that can emit light with high brightness.
- the integrated fluorescent discharge lamp shown in FIG. 8 or FIG. 9 has a configuration in which the coil electrode fluorescent discharge lamps are juxtaposed in a plane type, and is therefore optimal for a planar light source for illumination placed on a ceiling or a wall surface. Moreover, since there is no useless volume as a light source, it can contribute to the diversity of indoor interiors. Furthermore, this planar light source is suitable for a flat light source such as a liquid crystal backlight.
- FIG. 13 shows an integration of a large lamp structure in which seven coil electrode fluorescent discharge lamp tubes 23 are arranged in a bundle at a predetermined interval from each other by spacers (not shown) in the fluorescent discharge lamp housing 22.
- a fluorescent discharge lamp is shown.
- Each coil electrode fluorescent discharge lamp tube 23 has coil electrodes 24 and 25 at both ends.
- the coil electrodes 24 and 25 provided at the left and right ends of the seven coil electrode fluorescent discharge lamp tubes 23 are connected to the voltage application line 20 via a parallel connection part (not shown), and the high frequency voltage of the high frequency power source 6 is The coil electrode fluorescent discharge lamp tube 23 is applied in parallel.
- this integrated fluorescent discharge lamp by arranging a plurality of coil electrode fluorescent discharge lamp tubes 23 in a bundle, the amount of radiant heat from each coil electrode fluorescent discharge lamp tube 23 is accumulated in the gap, and each coil electrode It has the effect of preventing cooling by convection of cold air inside the fluorescent discharge lamp tube 23 and maintaining an appropriate temperature.
- Ar gas and Hg droplets are included in the coil electrode fluorescent discharge lamp 23 as the discharge gas.
- Ar always exists in a gas state, but Hg evaporates in a small amount at room temperature, and many exist as mercury droplets.
- the 254 nm ultraviolet light that causes the fluorescent film of the fluorescent discharge lamp tube to emit light is generated when Hg atoms present as a gas in Ar gas are excited. Therefore, the 254 nm ultraviolet intensity changes depending on the amount of Hg droplets evaporated in the Ar gas.
- the temperature of Ar gas is raised and controlled. Empirically, when the Hg vapor pressure is about 0.7 Pa to 1.5 Pa, an optimum light output is obtained. The optimum temperature range is 40 ° C. to 45 ° C.
- the temperature may be raised to about 70 ° C.
- the amount of 365 nm ultraviolet light intervenes but the amount of 254 nm ultraviolet light also increases, so that the PL luminance from the fluorescent film increases remarkably.
- the upper temperature limit is around 70 ° C.
- the surface of the discharge tube is in contact with cold air, and heat is radiated constantly by air convection. In order to prevent the discharge tube from being cooled and to maintain the optimum temperature, it is necessary to apply electric power that constantly generates an amount of heat corresponding to the amount of heat radiation in Ar gas.
- the Ar gas is heated with the amount of heat lost by cooling. In other words, only this heat radiation power is wasted in the power consumption of the fluorescent discharge lamp tube.
- It is ionization of gas atoms that generates heat in the fluorescent discharge lamp tube.
- the fluorescent discharge lamp tubes are arranged in a bundle to hold the fluorescent discharge lamp tubes mutually, and further housed in the fluorescent discharge lamp storage tube 22 to be arranged in a bundle by a heat retaining action.
- the gas temperature in the pipe can be quickly raised to the optimum temperature, and the mercury vapor pressure in the gas space can be brought to the optimum value.
- FIG. 14 is a schematic diagram for explaining how the behavior of electrons introduced to the surface of the fluorescent film in the present invention changes depending on the charged state of the fluorescent film.
- FIG. 14 illustrates the changes in the four charged states of the fluorescent film and the electron trajectory that affect the gas discharge in the FL tube (fluorescent discharge lamp tube).
- FIG. 14A is a partial view of a fluorescent film 27 formed by applying a commercial discharge lamp (PL) phosphor powder to the inner wall surface of the glass tube 2.
- PL commercial discharge lamp
- the present inventor has discovered that all particles of commercially available phosphor for PL have retained sustained internal polarization (PIP) from the time of manufacture, and that the negative charge (about 150 V) of PIP is applied to the outside of the particle. I came up with the idea.
- PIP sustained internal polarization
- the upper surface of the fluorescent film 27 made using a commercially available PL phosphor is covered with the negative charge of PIP.
- the electron e receives electrostatic repulsion from the negative electric field of PIP and does not enter the phosphor film. That is not all.
- the gas space is filled with a negative electric field due to outer shell electrons filling the outermost shell of gas atoms, and the electric field strength is 10 5 V / cm. Therefore, the electrons e cannot enter the gas space. Gas atoms do not discharge. That is, the gas discharge is not turned on.
- ZnS zinc sulfide
- ZnS green light emitting zinc sulfide
- MgO particles made under special conditions.
- zinc silicate (Zn 2 SiO 4 : Mn) phosphor produced with an excess of zinc oxide
- yttrium sulfate (Y 2 ) produced by chemical etching of the surface O 2 S: Eu or Tb) phosphor
- yttrium oxide made without using flux Y 2 O 3 : Eu or Dy
- FIG. 14B shows a case where a phosphor film is made of a ZnO phosphor. Since the PIP negative electric field does not exist, the slow electrons entering the surface of the fluorescent film easily enter the fluorescent film, and are accelerated by the electric field of the cation source B at the other end of the discharge tube. The process reaches the cation source B without colliding with the gas atoms, and returns to the gas atoms by recombination. The probability that a gas atom exists in an electron orbit traveling in one direction on a normal FL tube (tube length 50 cm) can be calculated. The value is 10 -6 , and it can be considered that the probability that the accelerated electrons traveling in one direction collide with the gas atoms is zero.
- FIG. 14 (C) applies ZnO phosphor particles 28 (without PIP) to the small area at the end of the fluorescent film of the fluorescent discharge lamp tube, and commercially available PL phosphor to the remaining large area.
- the inner wall surface of the fluorescent discharge tube is covered with a fluorescent film 27 (with PIP) in which particles are arranged.
- commercially available PL phosphor particles are first applied to the inner wall surface of the glass, dried, and then the binder is incinerated.
- the fluorescent film on the glass edge is wiped off with a soft cloth, and then applied to the inner surface of the glass where the ZnO phosphor particles 28 are wiped off. Incinerate the binder after drying.
- this fluorescent discharge lamp tube by the fluorescent film is that when the fluorescent discharge lamp tube is lengthened, electrons moving in the Ar gas are strongly affected by PIP as they move away from the electrode end. The central part of the discharge lamp tube becomes dark. In order to make the central portion emit light brightly, the potential applied to the electrode is increased, so that power consumption increases.
- the electron source according to the present invention is installed on this fluorescent film, and electrons close to zero at the initial speed are introduced.
- the electrons are accelerated where the ZnO phosphor particles 28 are arranged, and have energies that can excite gas atoms.
- the accelerated electrons cannot enter the commercially available phosphor film 27, but enter the gas space by bending the electron trajectory. Electrons entering the gas space collide with the gas atoms inelastically, excite the gas atoms, and turn on the gas space discharge. This phenomenon is the instantaneous lighting of the gas discharge of the fluorescent discharge lamp tube.
- Electrons moving in the discharge path have energy due to acceleration and collide with gas atoms inelastically.
- the orbital direction of electrons that collide inelastically is random.
- there is an electron that has an opportunity to approach the fluorescent film but since the negative charge of PIP26 exists in the fluorescent film, the electron cannot approach the fluorescent film, and the positive column.
- the range of activity of electrons that emit gas atoms resonating with high-frequency waves is not limited to the entire space of the gas discharge tube, but is limited to the central gas space of the discharge tube that maintains a certain distance from the fluorescent film. That is the positive column housed in the PIP sheath 26.
- the gas atoms are electrically neutral, are not affected by the electric field or charge, and are distributed at a uniform concentration in the discharge tube.
- Gas atoms (unexcited gas atoms) are distributed at a uniform concentration between the positive column accommodated in the PIP sheath 26 and the fluorescent film. If the light emitted from the positive column is generated by the electron transition from the excited level of the gas atom to the ground level, the emitted light is allowed to be absorbed by the gas atom. In that case, the light emitted in the positive column is absorbed by the gas atoms interposed between the positive column and the fluorescent film, and the remaining amount reaches the fluorescent film. In the case of a fluorescent discharge lamp, light emission of low-pressure Hg vapor is used.
- Light emission is an electronic transition from the excited level 6 p of Hg to the ground level 6 s, and is therefore absorbed by the Hg vapor existing between the positive column and the fluorescent film. Since light is a particle having no charge, it is not affected by PIP, and only the remaining amount absorbed by the Hg vapor existing between the positive column and the fluorescent film reaches the fluorescent film. This corresponds to the case where a phosphor film is made of a calcium halophosphate phosphor. Since the PIP intensity of the calcium halophosphate phosphor film does not change even if the tube diameter is reduced, the diameter of the positive column is reduced.
- the fluorescence discharge lamp tube made of the calcium halophosphate phosphor film has a significant decrease in light emission when the tube diameter is reduced.
- the fluorescent film is not covered with PIP negative charges. That is, it is better not to make a PIP sheath.
- the following fact was able to be clarified. Since the phosphor particles are particles having a large light refractive index, a part of the ultraviolet light enters the phosphor particles arranged on the surface layer of the phosphor film, and is directly absorbed by the emission center to emit visible light. The ultraviolet rays reflected by the surface layer particles become scattered light and enter the phosphor particles in the deep part of the phosphor film, so that the phosphor particles in the deep part also emit light.
- the phosphor film is made with the optimum number of layers.
- the CL phosphor particles emit light by recombining many holes and electrons that are formed in the phosphor particles upon incidence of electrons at the emission center.
- the number of electrons and hole pairs created by one incident electron entering the phosphor particle corresponds to the number of inelastic scattering of the incident electrons with the crystal lattice (approximately 1,000).
- CL phosphors are bright.
- FIG. 15 is a schematic diagram showing the state of an optimum fluorescent film made of a mixed powder of low-voltage electron beam-emitting CL phosphor powder and light-emitting PL phosphor powder in the present invention. It is extremely difficult to manufacture a phosphor film by placing the PL phosphor 27 and the low voltage CL phosphor 28 next to each other on the inner wall surface of the fluorescent discharge lamp tube. According to a published paper, Journal Physics D Applied Physics, 32, (1999), pp 513-517 (non-patent document 1), the optimum fluorescent film thickness of FL is made of five layers of phosphor particles. The only particles that can enter the electrons that irradiate the fluorescent film are the particles arranged in the uppermost layer.
- FIG. 15A shows a schematic diagram of the phosphor film thus produced.
- a method for producing a phosphor film by single application of phosphor slurry was devised.
- the average particle size of the commercially available PL phosphor is 4 ⁇ m.
- the particle size of the low voltage CL phosphor is 2 ⁇ m.
- a coating solution is made and applied to the inner wall surface of the discharge tube glass.
- the size of the CL phosphor particles used here good results were obtained when the average particle diameter of the PL phosphor was 4 ⁇ m and the average value was 1 ⁇ m to 3 ⁇ m. This particle size varies depending on the particle size of the PL phosphor. It should be noted that when the CL phosphor particles are as small as 1 ⁇ m or less, the particles are not arranged on the surface of the phosphor film, but gather at the bottom of the phosphor film when the phosphor film is dried, and the effect of the CL phosphor particles is reduced.
- the important points of the present invention are described below.
- the outer wall (the outer wall of the glass tube) of the heat insulating tube 22 of the fluorescent discharge lamp tube disposed on the outermost periphery of the integrated fluorescent discharge lamp is exposed to ambient air having a low temperature. Since there is a considerable temperature difference (over 20 ° C.) between the glass tube wall heated by Ar gas heated by gas ionization and room temperature, the glass tube wall loses heat due to air convection. When electrons from the third generation electron source were used, the amount of gas ionization per unit time was small, so the temperature of the fluorescent discharge lamp tube did not rise, and it was around 30 ° C., which is lower than the temperature giving the optimum mercury vapor pressure. .
- the fluorescent discharge lamp tube arranged on the inner side is thermally protected by the fluorescent discharge lamp tube arranged on the outer side, the air convection is small, and the outer wall temperature rises from about 45 ° C. to about 70 ° C. Since mercury vapor is excited by the same number of electrons to emit light, the number of mercury vapor excitations increases and decreases in proportion to the number of mercury vapor in the tube. When the number of mercury vapor in the fluorescent discharge lamp tube is small, it becomes dark, and when the number of mercury vapor is large, it emits bright light. In an integrated fluorescent discharge lamp, a large luminance difference occurs due to a temperature difference, and light emission from the fluorescent discharge lamp tube arranged at the outermost part is dark.
- the integrated fluorescent discharge lamp is inserted into a slightly thicker glass tube 22 and the end of the glass tube is sealed with a heat insulating material. Is in thermal equilibrium with the internally arranged fluorescent discharge lamp, and all of the integrated fluorescent discharge lamp tubes emit light with uniform brightness. As a result, the brightness of the cumulative fluorescent discharge lamp increases by a multiple of the number of integrated fluorescent discharge lamp tubes.
- An integrated fluorescent discharge lamp is formed by bundling coil electrode type fluorescent discharge lamp tubes, and also unpacking them and arranging them on a plane. At this time, each coil electrode type fluorescent discharge lamp tube is inserted into a heat insulating tube (glass tube) having an inner diameter slightly larger than the outer diameter of the discharge lamp tube, and both ends of the glass tube are sealed with a heat insulating material.
- a heat insulating tube glass tube
- the temperature of each fluorescent discharge lamp tube can be kept at a temperature that gives the optimum mercury vapor pressure. The ionization energy of the gas necessary for maintaining the temperature at which the optimum mercury vapor pressure is obtained in the fluorescent discharge lamp tube exposed to air is not necessary.
- a high-brightness planar light source can be obtained even if the power consumption required for lighting the external electrode fluorescent discharge lamps (EEFL) arranged on a plane is a fraction of a fraction.
- the lighting speed is in milliseconds, so the integrated fluorescent discharge lamps arranged on the plane are divided into several blocks, and each divided integrated fluorescent discharge lamp is Sequential line scanning is possible.
- the LCD screen is much brighter than when LEDs are used as the backlight, and a clear image is displayed due to the contrast based on the blackness of charcoal. It is.
- the above-described effects can also be obtained in a fluorescent discharge lamp tube using a phosphor particle layer insulated internal electrode in which phosphor particles, which are electrical insulators, are coated on the surface of the internal electrode to an appropriate thickness. Furthermore, when the integrated fluorescent discharge lamps arranged on a plane are divided into several blocks and each block is caused to emit light sequentially, a planar illumination light source with further reduced lighting power can be obtained.
- the length in the tube axis direction of the integrated coil electrode fluorescent discharge lamp according to the present embodiment is not limited, and the number of electrons involved in the discharge is the same even if the length is arbitrary, and gas atoms are inelastically collided with gas atoms. Since only the number of repetitions for emitting light increases, the power consumption hardly changes and only the area of the fluorescent film that emits light increases. As a result, only the luminance increases in proportion to the axial length of the integrated fluorescent discharge lamp. It is recommended to use a long integrated fluorescent discharge lamp when it is placed on the ceiling as a lighting source in the living room of a home or office of a high-rise building.
- the integrated fluorescent discharge lamp can use less than one-tenth of the power consumption of a conventional fluorescent discharge lamp using metal electrodes, including the power of the drive power supply circuit, to obtain the same illuminance.
- the integrated fluorescent discharge lamp is maintained at a glass tube surface temperature of 50 ° C. to 70 ° C. which optimizes the mercury vapor pressure when the fluorescent discharge lamp tube is turned on, but the integrated fluorescent discharge lamp is inserted. Since the outer tube 22 is thermally shielded, the thermal convection of air is suppressed. When the inside of the outer tube is evacuated to a thermos structure, the heat shielding effect is emphasized. It also has the advantage of greatly reducing the cooling power in the summer office.
- the tube diameter of the fluorescent discharge lamp tube is made larger than 20 mm, there is an unexcited Hg gas in the positive column formed in the fluorescent discharge tube, and the result is that the 254 nm ultraviolet light emitted by Hg in the positive column is self-absorbed. , Luminous efficiency decreases. For this reason, it is preferable not to use a fluorescent discharge lamp tube having a tube diameter of 20 mm or more for the integrated fluorescent discharge lamp. However, the use is not limited, and an integrated fluorescent discharge lamp may be made using a fluorescent discharge lamp tube having a tube diameter of 20 mm or more.
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Abstract
Description
近年、地球の温暖化が進み、世界規模で炭酸ガス放出が問題化している。炭酸ガスを大量に放出する原因の一つに、化石燃料を使用する発電所が排出する炭酸ガスがある。夜の暗闇を昼間の明るさ(単位面積当たり単位時間に平均1022光子数)に照明する光源は、発電所で発電した電力を大量に使用する(約四分の一)。環境保護の観点から照明光源に使用するランプの稼動電力の大幅な低減が緊急課題になり、新聞やTVニュースの話題になっている。照明光源にはタングステン線を高温度に加熱し、熱放射に伴う可視光を利用する電球が、製造単価が低く、広範囲の輝度が得られるので現在でも広く使用されている。タングステン電球のエネルギー変換効率 は0.8%である。電球のエネルギー変換効率の低さから、電球に変わる光源として注目を集めているのが、蛍光放電灯管である。蛍光放電灯管のエネルギー変換効率は公称20%と言われていることから、室内外の照明光源として蛍光放電灯管への変換が進められている。蛍光放電灯管にも種類があるが、現在注目されている蛍光放電灯管は、直径20 mm以下のガラス管を使用して作られる省電型蛍光放電灯管である。1蛍光放電灯管から発する光量は、蛍光膜の面積に比例するので、蛍光膜の面積の大きい管径が太い蛍光放電灯管を使用した方が省電型であると考えられるが、市販されている省電型蛍光放電灯管は直径が20 mm以下のガラス管を使用して作られている。しかし、その科学的な説明理由は出版された科学論文や放電ハンドブック等で見つけられない。 [Outline of conventional fluorescent discharge lamp tubes]
In recent years, global warming has progressed, and carbon dioxide emission has become a problem worldwide. One of the reasons for releasing large amounts of carbon dioxide is carbon dioxide emitted by power plants that use fossil fuels. Light source illuminating the darkness of night daytime brightness (unit area per
現在市販されている蛍光放電灯管は、ガラス管内に配置された電子放射と電子収集の役割を果たす金属電極(陰極と陽極)、放電ガスとなるアルゴン(Ar)ガスと水銀(Hg)滴、及び管内壁面に適度の厚さに塗布された蛍光膜を含む単純な構造になっている。この構造を基本とする蛍光放電灯管でガスを放電させているのは、運動エネルギーを持ってガス空間を移動する電子によるガス原子の非弾性衝突である。ガス空間を移動する電子経路には、必然的に、陰極直前に現れる陰極電圧降下と陽極直前に現れる陽極電圧降下が存在する。両者を合計すると放電路で発光に関与しない電力は、ガス放電の電力の約半分になる。蛍光放電灯管の放電から電圧降下を消去できれば、ガスの放電に必要な電力は半減すると考えられた。この計算には点灯に関与する電源装置の消費電力は考慮されていない。 [Electrode voltage drop: Hot cathode tube (1st generation) and cold cathode tube (2nd generation)]
Fluorescent discharge lamp tubes currently on the market are metal electrodes (cathode and anode) that are placed in glass tubes and play the role of electron emission and electron collection, argon (Ar) gas and mercury (Hg) drops as discharge gas, And it has a simple structure including a fluorescent film coated on the inner wall surface of the tube with an appropriate thickness. It is inelastic collision of gas atoms by electrons moving in the gas space with kinetic energy that causes the gas to be discharged by the fluorescent discharge lamp tube based on this structure. In the electron path moving through the gas space, there is necessarily a cathode voltage drop that appears just before the cathode and an anode voltage drop that appears just before the anode. When both are added together, the power that does not contribute to light emission in the discharge path is about half that of the gas discharge. If the voltage drop could be eliminated from the discharge of the fluorescent discharge lamp tube, the power required for the gas discharge was thought to be halved. This calculation does not take into account the power consumption of the power supply device involved in lighting.
金属電極を使用した蛍光放電灯管の場合、陰極と陽極直前に出現する電圧降下は、電極に印加する交流の周波数に無関係に存在し、検出される。電圧降下は省電を検討するときに重要な解決課題となっていたが、電圧降下が検出されてから100年以上経過した今日でも解決不能として残されていた。放電路の電圧降下は電子放射と電子収集で金属電極表面が放電空間と電気絶縁されずに対向している事実、換言すれば金属電極表面に必然的に現れる正孔の存在に原因する。この事実は、本発明者が出願しているPCT/JP2007/70431(特許文献1)とPCT/JP2007/74829(特許文献2)に詳細に記述されている。電子放射源と収集源に、放電空間に電気絶縁されずに露出する金属電極を使用しなければ、陰極と陽極直前に出現する電圧降下は放電路から消える。本発明者は上記PCT出願において、電子をガス空間に放出する「第三世代電子源」を発見し、前記電圧降下現象を解消することに初めて成功した。 [Discovery of third generation electron source by the present inventors: complete elimination of electrode voltage drop and sputtering]
In the case of a fluorescent discharge lamp tube using a metal electrode, the voltage drop that appears just before the cathode and the anode exists regardless of the frequency of the alternating current applied to the electrode and is detected. The voltage drop has been an important solution when considering power saving, but it has remained unsolvable even today, more than 100 years after the voltage drop was detected. The voltage drop in the discharge path is caused by the fact that the surface of the metal electrode faces the discharge space without being electrically insulated by electron emission and electron collection, in other words, the presence of holes that inevitably appear on the surface of the metal electrode. This fact is described in detail in PCT / JP2007 / 70431 (patent document 1) and PCT / JP2007 / 74829 (patent document 2) filed by the present inventors. If the electron emission source and the collection source do not use a metal electrode that is exposed without being electrically insulated in the discharge space, the voltage drop that appears just before the cathode and the anode disappears from the discharge path. In the PCT application, the present inventor discovered a “third generation electron source” that emits electrons into the gas space, and succeeded in eliminating the voltage drop phenomenon for the first time.
放電発光を駆動する電子は、高周波電圧の印加による放電ガスの電離により生成され、生成された電子と陽イオンが前記放電空間絶縁型電極の近傍に電気力で集積し、第3世代電子源(単に電子源とも称する)及び陽イオン源となる。本発明者はこの電子源を第3世代電子源と称し、前記第3世代電子源から電子が前記陽イオン源に前進する過程で放電ガスと衝突して発光し、電子と陽イオンが衝突して電気的に中性の放電ガスに帰還する。しかも再び交流電圧により電離し、発光し、中性ガス化するサイクルを反復する。 In this embodiment, since the electrodes at both ends of the fluorescent discharge lamp are constituted by discharge space insulating electrodes electrically insulated from the internal discharge space using the coil electrode, the metal electrode enters the discharge space. Electron injection was completely eliminated, and the electrode voltage drop caused by the electron injection was eliminated, succeeding in exhausting unnecessary power consumption accompanying the electrode voltage drop. In addition, since there is no electron injection, there is no sputtering phenomenon caused by collision of cations with metal electrodes, and electrode wear is exhausted and the life of the fluorescent discharge lamp tube is extended.
Electrons that drive the discharge light emission are generated by ionization of the discharge gas by applying a high-frequency voltage, and the generated electrons and cations are accumulated by electric force in the vicinity of the discharge space insulation type electrode, and a third generation electron source ( Simply referred to as an electron source) and a cation source. The present inventor refers to this electron source as a third generation electron source, collides with a discharge gas in the process of electrons moving from the third generation electron source to the cation source, and emits light. Return to the electrically neutral discharge gas. In addition, the cycle of ionizing again by the alternating voltage, emitting light, and neutral gasification is repeated.
本発明に係るコイル電極蛍光放電灯において重要な高輝度化の開発経緯を以下に説明する。
発明者達は、高周波電源を第三世代電子源による蛍光放電灯管の電極に印加すると、電源回路の入力側で検出する電流に発光に関与しない高周波電界を形成する電流と、電子源から供給されてガス原子の発光に関与する電子電流の2種類が存在する事を発見した。高周波電界形成に必要な電流の大きさは、ガス原子を発光させるに必要な電子電流の大きさの千倍以上で1A付近にある。従って、高周波電界形成電流は蛍光放電灯の発光には寄与せず、蛍光放電灯管の点灯時の消費電力のみを決める事実を発見した。ガス放電は電子源からの電子が高周波電界との共鳴でガス空間を移動して起しているが、この電子電流は電流量が小さく(1mA以下)、蛍光放電灯管の点灯に必要な実質電力に影響を与えていない。上記した発見は蛍光放電灯管の全機能を最適化し、今までに得られなかった水準の省電力で高輝度な蛍光放電灯管を開発する上で重要な事項である。 [Further details of the present invention: Relationship between detection current and lighting]
The history of development of high brightness important in the coil electrode fluorescent discharge lamp according to the present invention will be described below.
The inventors applied a high-frequency power source to the electrode of a fluorescent discharge lamp tube by a third-generation electron source and supplied from the electron source a current that forms a high-frequency electric field that does not contribute to light emission in the current detected on the input side of the power circuit. It was discovered that there are two types of electron currents involved in the emission of gas atoms. The magnitude of the current necessary for forming the high-frequency electric field is in the vicinity of 1 A, which is 1000 times or more the magnitude of the electron current necessary for emitting gas atoms. Therefore, it has been found that the high frequency electric field forming current does not contribute to the light emission of the fluorescent discharge lamp, but determines only the power consumption when the fluorescent discharge lamp tube is turned on. The gas discharge is caused by electrons from the electron source moving in the gas space due to resonance with the high frequency electric field, but this electron current has a small amount of current (1 mA or less) and is substantially necessary for lighting the fluorescent discharge lamp tube. The power is not affected. The above discovery is an important matter in optimizing all functions of a fluorescent discharge lamp tube and developing a fluorescent lamp with high power and high brightness that has never been obtained.
2 ガラス管
3 コイル電極
4 コイル電極
5 電圧印加線
6 交流電源
7 商用電源
8 蛍光膜
9 電線
10 絶縁層
11 蛍光体粒子層
12 蛍光体粒子層
13 電圧印加線
14a ガラス管
14b ガラス管
14n ガラス管
15a コイル電極
15b コイル電極
15n コイル電極
16a コイル電極
16b コイル電極
16n コイル電極
17a ガラス管
17b ガラス管
17n ガラス管
18a コイル電極
18b コイル電極
18n コイル電極
19a コイル電極
19b コイル電極
19n コイル電極
20 電圧印加線
21 電圧印加線
22 蛍光放電灯収納部
23 コイル電極蛍光放電灯
24 コイル電極
25 コイル電極
26 PIP鞘
27 PL蛍光体粒子
28 CL蛍光体粒子
29 コイル電極蛍光放電灯
30 コイル電極
31 コイル電極収納庫
32 口金
CCFL 冷陰極蛍光放電灯管
CL 電子線発光(Cathodoluminescence)
e 電子(放出電子)
FL 蛍光放電灯
HCFL 熱陰極蛍光放電灯管
LCD 液晶ディスプレイ
PIP 永続性内部分極
PL 光発光(Photoluminescence)
SBE 表面結合電子(surface-bound-electrons)
UV 紫外線 DESCRIPTION OF
e Electron (Emission electron)
FL Fluorescent discharge lamp HCFL Hot cathode fluorescent discharge lamp LCD LCD Liquid crystal display PIP Permanent internal polarization PL Light emission (Photoluminescence)
SBE surface-bound-electrons
UV UV
図1は、コイル電極蛍光放電灯を示す構成図である。図2は、コイル電極を示す概略断面図である。この蛍光放電灯管1は、内面に蛍光膜8が形成され、両端を密封したガラス管2と、ガラス管2の両端外周に巻回状に配置したコイル電極3、4と、商用電源7からの供給電源により高周波電圧を生成する高周波電源6からなる。ガラス管2の内部は、放電ガスを充填する放電空間が空洞として形成されている。ガラス管2内部には放電ガスとなるアルゴン(Ar)ガスが充填され、かつ水銀(Hg)滴が封入されている。コイル電極3、4は電線をガラス管外周面の左右端部に4回巻き付けてなり、放電空間絶縁型電極の一種である。図2の(2B)に示すように、各コイル電極は電線9の周囲を絶縁層10により被覆した絶縁被覆電線からなり、終端は開放端で、巻き線側は電圧印加線5として高周波電源6の出力側に接続されている。コイル電極3、4にはエナメル被覆電線又はビニル被覆電線を使用する。外部電極としてコイル電極3、4を使用するので、キャップ電極や電極膜と比べて、ガラス管端部の巻回だけで簡単に製造することができる。 Hereinafter, embodiments of the coil electrode fluorescent discharge lamp according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a configuration diagram showing a coil electrode fluorescent discharge lamp. FIG. 2 is a schematic cross-sectional view showing a coil electrode. This fluorescent
図3は高周波電源6の1次側電力W1n(W)とコイル電極3、4の巻数nの関係を示す。この実験では巻数nを1、5、10に変えたときの1次側電力を測定した。コイル電極を付与する蛍光放電灯管として、内部電極付き蛍光放電灯管を使用しコイル電極蛍光放電灯に改変した例を((3A)~(3C)参照)に、また、寿命が尽きて破棄された内部電極付き蛍光放電灯管をコイル電極蛍光放電灯に改変した((3D)~(3F)参照)例を示す。絶縁被覆電線の金属電線の直径を、0.26、0.5、0.8、1.6Φ(mm)と変えている。(3A)~(3C)は点灯初期時の電力、30分後、60分後の電力を示す。(3D)~(3F)は、不良品における点灯時初期、30分後、60分後の電力を示す。 Various electrode formation conditions in the coil electrode fluorescent discharge lamp according to the present invention were examined.
FIG. 3 shows the relationship between the primary power W 1n (W) of the high-
図7は蛍光放電灯が単体のときの、点灯時初期の2次側電力W2n(変数yで表示)と巻数n(変数xで表示)の変化を示し、yとxの一次関数である実験式を得た。例えば、d=0.26φの場合、y=0.25x-0.12の実験式が得られた。他のdについては図7に記載した通りである。従って、2次側電力についても、1次側電力と同様にW2n=cn+dn×n(cn,dn:定数)が成立している。この実験式式に基づき、コイル電極の巻数によって高周波電源6の2次側電力を適宜決定することができ、コイル電極蛍光放電灯の消費電力を簡易に設計できる。逆に、2次側消費電力に合わせて、前記近似式に基づき、コイル電極の巻数を適宜決定して簡単に電極設計を行うことができる。 Next, the change of the secondary power W 2n (W) of the high
FIG. 7 shows changes in the secondary side power W 2n (indicated by the variable y) and the number of turns n (indicated by the variable x) at the beginning of lighting when the fluorescent discharge lamp is a single unit, and is a linear function of y and x. The empirical formula was obtained. For example, when d = 0.26φ, an empirical formula y = 0.25x−0.12 was obtained. The other d is as described in FIG. Accordingly, W 2n = c n + d n × n (c n , d n : constant) is also established for the secondary side power, similarly to the primary side power. Based on this empirical formula, the secondary power of the high-
図8はn本のコイル電極蛍光放電灯を並列接続して交流電源6の2次側電圧を印加して同時点灯させる集積コイル電極蛍光放電灯を示す。各ガラス管14a、14b~14nは夫々の両端に、絶縁被覆電線からなるコイル電極対15a及び16a、・・・、15n及び16nが形成されており、各コイル電極対には電圧印加線13を通じて2次側電圧が供給される。この場合、電圧印加線13に対して各コイル電極蛍光放電灯管のコイル電極は並列接続されている。 As an application of the coil electrode fluorescent discharge lamp, an embodiment of an integrated fluorescent discharge lamp consisting of a plurality of tubes will be described.
FIG. 8 shows an integrated coil electrode fluorescent discharge lamp in which n coil electrode fluorescent discharge lamps are connected in parallel and a secondary side voltage of the
本実施形態では、蛍光放電灯管を束状配置することによって蛍光放電灯管を相互に保熱し、更に蛍光放電灯収納管22内に収納することにより保熱作用により束状配置した蛍光放電灯管内のガス温度を最適温度に速やかに上昇させ、ガス空間中の水銀蒸気圧を最適値にすることができる。 As described above, Ar gas and Hg droplets are included in the coil electrode
In the present embodiment, the fluorescent discharge lamp tubes are arranged in a bundle to hold the fluorescent discharge lamp tubes mutually, and further housed in the fluorescent discharge
Claims (15)
- 両端を密封されたガラス管の内面に蛍光膜を形成し、前記ガラス管の内部に放電ガスを充填し、前記ガラス管の両端の外周にコイル電極を巻回状に配置し、交流電源により前記コイル電極に交流電圧を印加し、前記放電ガスを放電させて点灯させる外部コイル電極蛍光放電灯において、前記蛍光膜は前記コイル電極が対向する位置のガラス管内面にも形成され、前記コイル電極は電線の周囲を絶縁層により被覆した絶縁被覆電線を巻回状に形成されることを特徴とするコイル電極蛍光放電灯管。 A fluorescent film is formed on the inner surface of the glass tube sealed at both ends, the inside of the glass tube is filled with a discharge gas, coil electrodes are wound around the outer periphery of both ends of the glass tube, and the AC power supply In an external coil electrode fluorescent discharge lamp in which an AC voltage is applied to the coil electrode to discharge the discharge gas, the fluorescent film is also formed on the inner surface of the glass tube at a position facing the coil electrode, A coil electrode fluorescent discharge lamp tube, characterized in that an insulation-coated electric wire, in which the periphery of the electric wire is covered with an insulating layer, is formed in a wound shape.
- 前記コイル電極蛍光放電灯管が1本の場合に、前記コイル電極の巻数をn、前記交流電源の1次側電力をW1n(W)としたとき、W1n=an+bn×n(an,bn:定数)が近似式として成立する請求項1に記載のコイル電極蛍光放電灯管。 When the coil electrode fluorescent lamp tubes is one, the number of turns of the coil electrode n, when the primary electric power of the alternating current power supply was set to W 1n (W), W 1n = a n + b n × n ( The coil electrode fluorescent discharge lamp tube according to claim 1, wherein a n , b n are constants.
- 前記コイル電極蛍光放電灯管が1本の場合に、前記コイル電極の巻数をn、前記交流電源の2次側電力をW2n(W)としたとき、W2n=cn+dn×n(cn,dn:定数)が近似式として成立する請求項1又は2に記載のコイル電極蛍光放電灯管。 When the number of turns of the coil electrode is n and the secondary power of the AC power supply is W 2n (W) when the number of the coil electrode fluorescent discharge lamp tubes is 1, W 2n = c n + d n × n ( The coil electrode fluorescent discharge lamp tube according to claim 1 or 2, wherein c n , d n : constant) is established as an approximate expression.
- 前記勾配bn及びdnはbn>dnである請求項3に記載のコイル電極蛍光放電灯管。 Coil electrode fluorescent lamp tube according to claim 3 wherein the slope b n and d n is b n> d n.
- 前記巻数nが1≦n≦10の範囲において、前記電線の断面直径d(mm)を0.26(mm)≦d≦1.6(mm)の範囲に可変したとき、前記1次側電力W1nは前記近似式の値と最大5(W)のずれ幅を有する請求項2、3又は4に記載のコイル電極蛍光放電灯コイル電極蛍光放電灯管。 When the winding number n is in the range of 1 ≦ n ≦ 10, the primary power is changed when the cross-sectional diameter d (mm) of the electric wire is varied in the range of 0.26 (mm) ≦ d ≦ 1.6 (mm). 5. The coil electrode fluorescent discharge lamp coil electrode fluorescent discharge lamp tube according to claim 2, wherein W 1n has a deviation width of a maximum of 5 (W) from the value of the approximate expression.
- 前記巻数nが1≦n≦10の範囲において、前記電線の断面直径d(mm)を0.26(mm)≦d≦1.6(mm)の範囲に可変したとき、前記1次側電力W1nは前記近似式の値と最大0.6(W)のずれ幅を有する請求項2、3又は4に記載のコイル電極蛍光放電灯管。 When the winding number n is in the range of 1 ≦ n ≦ 10, the primary power is changed when the cross-sectional diameter d (mm) of the electric wire is varied in the range of 0.26 (mm) ≦ d ≦ 1.6 (mm). 5. The coil electrode fluorescent discharge lamp tube according to claim 2, wherein W 1n has a deviation width of a maximum of 0.6 (W) from the value of the approximate expression.
- N本の前記コイル電極蛍光放電灯を並列接続して前記交流電源の2次側電圧を印加したとき、前記交流電源の1次側電力をW1N(W)とすると、W1N=aN+bN×N(aN、bN:定数)が近似式として成立する請求項1に記載のコイル電極蛍光放電灯管。 When the secondary side voltage of the AC power supply is applied when N coil electrode fluorescent discharge lamps are connected in parallel and the primary power of the AC power supply is W 1N (W), W 1N = a N + b The coil electrode fluorescent discharge lamp tube according to claim 1, wherein N × N (a N , b N : constant) is established as an approximate expression.
- N本の前記電極蛍光放電灯管を並列接続して前記交流電源の2次側電圧を印加したとき、前記交流電源の2次側電力をW2N(W)としたとき、W2N=cN+dN×N(cN、dN:定数)が近似式として成立する請求項7に記載のコイル電極蛍光放電灯管。 When N secondary electrode fluorescent discharge lamp tubes are connected in parallel and the secondary side voltage of the AC power supply is applied, when the secondary power of the AC power source is W 2N (W), W 2N = c N The coil electrode fluorescent discharge lamp tube according to claim 7, wherein + d N × N (c N , d N : constant) is established as an approximate expression.
- 前記勾配bN及びdNはbN>dNである請求項8に記載のコイル電極蛍光放電灯管。 Coil electrode fluorescent lamp tube according to claim 8 wherein the gradient b N and d N is b N> d N.
- 前記蛍光放電灯管として寿命の尽きた内部電極付き蛍光放電灯管を再生使用し、前記内部電極付き蛍光放電灯に前記コイル電極を設ける請求項1~9のいずれかに記載のコイル電極蛍光放電灯管。 The coil electrode fluorescent discharge according to any one of claims 1 to 9, wherein a fluorescent discharge lamp tube with an internal electrode whose lifetime has expired is reused as the fluorescent discharge lamp tube, and the coil electrode is provided on the fluorescent discharge lamp with the internal electrode. Lamp tube.
- 前記蛍光膜の表面において、管軸方向に、PL蛍光体粒子とCL蛍光体粒子が交互に分散配置されている請求項1~10のいずれかに記載のコイル電極蛍光放電灯管。 The coil electrode fluorescent discharge lamp tube according to any one of claims 1 to 10, wherein PL phosphor particles and CL phosphor particles are alternately distributed in the tube axis direction on the surface of the phosphor film.
- 前記蛍光膜が、PL蛍光体粉とCL蛍光体粉の混合粉から形成される請求項11に記載のコイル電極蛍光放電灯管。 The coil electrode fluorescent discharge lamp tube according to claim 11, wherein the phosphor film is formed from a mixed powder of PL phosphor powder and CL phosphor powder.
- 前記蛍光膜が、ハロ燐酸カルシウムPL蛍光体粉と低電子線発光するCL蛍光体粉の混合粉から形成される請求項12に記載のコイル電極蛍光放電灯管。 The coil electrode fluorescent discharge lamp tube according to claim 12, wherein the phosphor film is formed of a mixed powder of a calcium halophosphate PL phosphor powder and a CL phosphor powder emitting a low electron beam.
- 前記蛍光膜が、希土類PL蛍光体粉と低電子線発光するCL蛍光体粉の混合粉から形成される請求項12に記載のコイル電極蛍光放電灯管。 The coil electrode fluorescent discharge lamp tube according to claim 12, wherein the phosphor film is formed from a mixed powder of rare earth PL phosphor powder and CL phosphor powder emitting low electron beam.
- 従来の蛍光放電灯器具のソケットと嵌合する口金を前記コイル電極蛍光放電灯管の両端に取着し、前記コイル電極蛍光放電灯管を従来の蛍光放電灯器具に着脱可能にした請求項1~14のいずれかに記載のコイル電極蛍光放電灯管。 2. A base that fits into a socket of a conventional fluorescent discharge lamp fixture is attached to both ends of the coil electrode fluorescent discharge lamp tube, and the coil electrode fluorescent discharge lamp tube is detachable from the conventional fluorescent discharge lamp fixture. 15. The coil electrode fluorescent discharge lamp tube according to any one of 1 to 14.
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CN2008801297925A CN102067276B (en) | 2008-06-19 | 2008-06-19 | Coil electrode fluorescent electric-discharge lamp pipe |
JP2010517595A JP5600590B2 (en) | 2008-06-19 | 2008-06-19 | Power-saving high-intensity integrated fluorescent lamp |
PCT/JP2008/061203 WO2009153872A1 (en) | 2008-06-19 | 2008-06-19 | Coil electrode fluorescent electric-discharge lamp pipe |
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JPH05174792A (en) * | 1991-05-27 | 1993-07-13 | Asea Brown Boveri Ag | High output beam generator |
JP2001303042A (en) * | 2000-04-20 | 2001-10-31 | Toshiba Corp | Fluorescent substance for rapid starting type fluorescent lamp and rapid starting type fluorescent lamp using the same |
JP2003229092A (en) * | 2001-11-30 | 2003-08-15 | Harison Toshiba Lighting Corp | External electrode discharge lamp |
JP2007149573A (en) * | 2005-11-30 | 2007-06-14 | Masateru Kobayashi | Display object illumination device |
JP2007179820A (en) * | 2005-12-27 | 2007-07-12 | Harison Toshiba Lighting Corp | External electrode fluorescent lamp and illumination device |
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JP3187952B2 (en) * | 1992-07-14 | 2001-07-16 | 株式会社東芝 | Three-wavelength phosphor and fluorescent lamp using the same |
JP2003036723A (en) * | 2001-07-19 | 2003-02-07 | Harison Toshiba Lighting Corp | Lighting device |
-
2008
- 2008-06-19 WO PCT/JP2008/061203 patent/WO2009153872A1/en active Application Filing
- 2008-06-19 JP JP2010517595A patent/JP5600590B2/en not_active Expired - Fee Related
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH05174792A (en) * | 1991-05-27 | 1993-07-13 | Asea Brown Boveri Ag | High output beam generator |
JP2001303042A (en) * | 2000-04-20 | 2001-10-31 | Toshiba Corp | Fluorescent substance for rapid starting type fluorescent lamp and rapid starting type fluorescent lamp using the same |
JP2003229092A (en) * | 2001-11-30 | 2003-08-15 | Harison Toshiba Lighting Corp | External electrode discharge lamp |
JP2007149573A (en) * | 2005-11-30 | 2007-06-14 | Masateru Kobayashi | Display object illumination device |
JP2007179820A (en) * | 2005-12-27 | 2007-07-12 | Harison Toshiba Lighting Corp | External electrode fluorescent lamp and illumination device |
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JPWO2009153872A1 (en) | 2011-11-24 |
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CN102067276A (en) | 2011-05-18 |
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