KR19990024229A - Lamp using plasma - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp using a plasma, which is a gaseous state separated by electrons having a negative charge and positively charged ions at a high temperature, and reacts to ultraviolet rays generated when a plasma passes through a fluorescent lamp. Coating the fluorescent material and connect the plasma power source generated by the plasma generator to one electrode of the fluorescent lamp, and connect the ground wire through which the plasma can flow to the other electrode. It does not use filament-like electrodes inside the fluorescent lamp to emit light by receiving ultraviolet rays generated from the plasma, and prolongs the life of the fluorescent lamp for a long time and emits a large amount of ultraviolet rays by providing a dielectric inside the both electrodes. It is possible to reduce the size of fluorescent lamp while having luminous output. It is possible to increase the efficiency of work by manufacturing fluorescent lamps under atmospheric pressure and to avoid harmful substances by eliminating the insertion of harmful substances into the fluorescent lamps so as to solve environmental pollution and not have a harmful environment to human body. It is to provide a lamp using a plasma that can be brought to improve the workplace.

Description

Lamp using plasma

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp using a plasma, which is a gaseous state separated by electrons having a negative charge and positively charged ions at a high temperature, and particularly by using an atmospheric pressure plasma to greatly increase the ionization rate in the lamp. The present invention relates to a lamp using a plasma that has a high light output and a semi-permanent life, and does not cause environmental problems.

In general, as a means of illuminating a dark place, a bulb using a filament electrode and a fluorescent lamp by emitting light of a fluorescent material are used. The fluorescent lamp currently being used commercially is generated from discharge in low pressure mercury vapor (about 2-10 torr). It is a light source that converts ultraviolet rays to various kinds of phosphors coated on the inner wall of the glass tube and converts them into visible light.It shows various light colors according to the kinds of phosphors. Argon is filled with several torr to suppress evaporation, and the filament used for discharging uses double or triple coil filaments, and there is a barium (Ba) and strontium, which tend to emit electrons at high temperatures thereon. A negative electrode material, which is an oxide of an alkaline earth metal such as (Sr), is painted. When the current flows through the silver filament, the filament is glowing and hot electrons are emitted from the cathode material, and these electrons move by the electric field to the anode to obtain sufficient kinetic energy, and they collide with gas atoms of mercury or argon in the tube to excite these atoms to emit light. Or discharge while continuing to ionize.

At this time, ultraviolet rays are generated by the photon energy generated when excited and dropped, and the ultraviolet rays are stimulated with phosphors coated on the inner wall of the glass tube of the fluorescent lamp and converted into long visible rays. By converting the light into high visibility, the luminous efficiency is increased overall.

However, currently used fluorescent lamps have to be kept at low pressure (2-10torr) because they make the inside of the vacuum state, so it is not easy for the process, and the low pressure mercury vapor ionizes because the amount of gas that can be ionized due to low pressure is small. The amount of ultraviolet rays generated by the low rate is low, and thus the light output of the fluorescent lamp is low, and since the hot electrons emitted from the filament are reduced due to the oxidation of the filament during use, the luminous efficiency of the fluorescent lamp is reduced, so the life of frequent filament is broken. This shortened, mercury vapor is used to generate ultraviolet rays in the fluorescent lamp, which causes environmental pollution problems, which is not environmentally friendly, and incurs additional costs for the mercury vapor treatment. Has a problem, such a common statement In spite of the technical obstacles, American Inman invented fluorescent lamps by adding fluorescent materials to high-pressure mercury discharge tubes in 1938. In addition, it is required to develop a new concept fluorescent lamp that can minimize the cost of facility investment by requiring little modification of the existing production line.

In addition, the plasma to be used in the present invention is an ionized gas having a free electron number almost equal to that of cationic water, represented by the fourth form of the material, the space between the stars, the atmospheric discharge of stars including the sun, and the experimental heat. It is produced in nuclear reactors and can explain aurora phenomenon that occurs in polar regions representatively. Yangyangju of glow discharge is plasma at low temperature and the fluid used for MHD power is plasma at high temperature. As the electrical conductivity is high, there is almost no potential difference, there is no space charge, and in the atmospheric plasma generation field, which has been studied since the late 80's, the exact theory on the principle of plasma generation under atmospheric pressure has not been established. If the plasma is at atmospheric pressure a few nanoseconds (ns) It has been observed that the transition to an arc within chromos (μs) is generally the same as lightning occurs in natural phenomena, so that a streamer generated by a very frequent collision between atoms causes several conduction. Oscillation in a channel (conductive channel).

The present invention was created to use the ultraviolet rays generated in the plasma in order to solve the problems caused by the conventional fluorescent lamp as described above, coating a fluorescent material reacting to the ultraviolet rays generated when the plasma passes inside the fluorescent lamp. And connect the plasma power generated by the plasma generator to one electrode of the fluorescent lamp, and connect the ground line through which the plasma can flow to the other electrode, so that the fluorescent material is generated from the plasma when the plasma passes through the inside of the fluorescent lamp. It is possible to extend the life of the fluorescent lamp by not using filament-like electrodes inside the fluorescent lamp for a long time and to emit a large amount of ultraviolet rays by providing a dielectric inside the electrodes on both sides, The size of fluorescent lamp can be downsized It is possible to increase the efficiency of work by manufacturing fluorescent lamps under atmospheric pressure, and to avoid harmful substances by eliminating the insertion of harmful substances into the fluorescent lamps. It is to provide a lamp using a plasma that can be brought to improve the workplace.

1 is a perspective view showing a configuration of a first embodiment of the present invention.

2 is a cross-sectional view showing the action according to the first embodiment;

3 is a perspective view of a lamp using a general power source which is a second embodiment of the present invention.

4 is a perspective view of a dielectric used in the second embodiment to discharge plasma;

5 is a cross-sectional view of the bonded state of the second embodiment;

6 is an enlarged cross-sectional view of portion A of FIG.

7 is a perspective view showing an application embodiment of the dielectric applied in the second embodiment.

8 is a cross-sectional view of an application embodiment.

9 is a sectional view showing another application embodiment.

10 is a sectional view showing yet another application embodiment.

Explanation of symbols for main parts of the drawings

(1) lamp (2) glass tube

(3) fluorescent material (4) anode

(5) cathode electrode (6) plasma generator

(7) wire (8) ground wire

(10) Ballasts (11) (12) Dielectrics

(13) micropores

Hereinafter, described in detail by the accompanying drawings of the present invention.

1 is a perspective view showing a configuration of connecting a plasma generating apparatus as a first embodiment of the present invention to a lamp, FIG. 2 is a cross-sectional view showing the operation according to the first embodiment, and FIG. 2 is a perspective view of a lamp using a general power source as a second embodiment, FIG. 4 is a perspective view of a dielectric used in the second embodiment to discharge plasma, FIG. 5 is a cross-sectional view of the bonding state of the second embodiment, and FIG. A section enlarged section view.

Plasma is generated through the plasma generator 6 for generating plasma, and the electrode 9 of the plasma generator 6 and one electrode 4 of the lamp 1 coated with the fluorescent material 3 on the inner wall thereof. Is connected to the wire (7), and the other electrode (5) of the lamp (1) is connected to the ground wire (8) so that the plasma can flow through the lamp (1), the plasma is connected to the glass tube (2) of the lamp (1) The fluorescent material 3 coated on the inner wall of the glass tube 2 of the lamp 1 emits light by ultraviolet rays generated from the plasma when passing through the inside.

In addition, as another method of the present invention, as shown in Figs. 3 to 5, the cathode electrode 5 formed on one side of the lamp 1 through the ballast 10 using a general power source (direct current or alternating current). It is connected to the anode electrode (4), the electrodes (4) (5) on both sides of one side protrudes out of the glass tube of the lamp (1) and the other side is inserted into the glass tube (2) and inserted into the glass tube (2) Dielectrics 11 and 12 are provided at the ends of the electrodes 4 and 5 to seal the glass tube 2, and the inner wall of the glass tube 2 is generated in the plasma generated through the dielectric 11 and 12. It is coated with a fluorescent material (3) in response to the ultraviolet.

In this case, dielectrics 11 and 12 having a plate shape in a square or circular shape are formed perpendicular to the electrodes 4 and 5 in both electrodes 4 and 5 of the lamp 1. (11) (12) is to form a micro-cavity 13 according to the type (direct current or alternating current) of the power supply source, the micro-cavity 13 is formed on the cathode electrode 5, which is one side when the power supply source is DC The anode electrode 4 having the dielectric 12 and the other side is provided with a flat dielectric 11 having no micro voids 13 formed therein, and in the case where the power supply is AC, the electrodes 4 of both the cathode and the anode are alternating. It is to facilitate the stabilization of the plasma by controlling the current density in the cathode fall (cathode fall) generated in the plasma by having the dielectric 12 having the microcavity 13 formed in (5).

In addition, the dielectrics 11 and 12 have an electrode structure in which a bulk dielectric is processed and placed on a normal metal electrode, and a DC spurter system or a radio frequency sputter system (RF spurter system) on the metal electrode. , A technique of depositing a thin film dielectric using an ion plating system and an ion beam assisted deposition system, and the material of the dielectric 11 is glass plate, heat resistant glass (Pyrex) , Formed of alumina (Al ₂ O ₃ ), magnesium oxide (MgO), and the like, and in particular, in order to increase the efficiency of the secondary pendulum generated in the dielectric, it is preferable to use an oxide-based material.

Referring to the operation of the present invention configured as described above are as follows.

First, the operation of the lamp using the plasma generator 6 used in the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

The plasma generator 6 generates a plasma, which is a gas separated by electrons having positive charges and positively charged ions at a high temperature, which is widely used for decorative products, but uses a high generated voltage. Preferably, the electrode 4 on one side to which the electric wire 7 connecting the lamp 1 and the plasma generator 6 is coupled and the electrode on the other side to allow the plasma to pass through the lamp 1 5) is not separated into a (+) power source and a (-) power source, and receives a plasma from one side with one electrode and allows the plasma to pass through the other side so that the plasma passes from the one side electrode 4 to the inside of the lamp 1. Ultraviolet rays are generated by discharge generated when flowing in and flows out to the electrode 5 on the other side, and the ultraviolet rays emit a fluorescent substance 3 coated on the inner wall of the glass tube 2 of the lamp 1. It is to make it mad.

At this time, if the plasma does not pass to the other side of the lamp 1 has a characteristic that the plasma is continuously transitioned, one side of the lamp 1 into which the plasma flows is brightly emitted, but the other side is ultraviolet light due to the identity reflectance characteristic of the plasma When the ground wire 8 connected to the electrode 5 on the other side is connected to the earth or other highly conductive object, the transition of the plasma is actively performed, and the emission of ultraviolet rays occurs actively. If the illumination of the lamp 1 can be increased or if the ground wire 8 connected to the electrode 5 on the other side is discharged in the air or grounded with an object having low conductivity, the transition motion of the plasma is not actively generated. It will be low.

Therefore, the ground line 8 of the electrode 5 on the other side connected to the plasma flow out may be grounded to vary the highly conductive object and the weakly conductive object, thereby obtaining different illuminance with one lamp 1. In addition, it is possible to adjust the illuminance of the lamp by adjusting the power intensity of the plasma output from the plasma generator (6).

And, the second embodiment of the present invention will be described with reference to Figures 3 to 6 the operation of the lamp using a general power source as follows.

The general power supply is connected to the electrodes 4 and 5 provided on both sides of the lamp 1 through the ballast 10, and when the power is applied, the electrode 4 inserted into the glass tube 2 of the lamp 1 ( The discharge of the plasma is caused by the dielectrics 11 and 12 provided at the end of 5). In this case, when the power source uses a DC power source divided into a (+) power source and a (-) power source, it is one side of the lamp 1. A positive electrode (4) having a positive electrode (4) is provided with a flat dielectric (11) without the formation of micropores 13, a negative electrode (5) terminal having a plurality of micropores (13) 12), and when the power source is an AC power source that is not divided into a positive power source and a negative power source, a plurality of micropores 13 are formed on both electrodes 4 and 5 of the lamp 1. It is provided with a dielectric (12), and when the power is applied in the microcavity 13 by the capillary effect (pendillary effect) and the pendant effect (pendal effect) By controlling the flow of electrons and ions present in the town, and significantly increase the ionization rate in the fine pores 13 to which the plasma is more stable and can be strongly held.

In addition, when the plasma is generated and the excited electrons fall to the ground state, ultraviolet rays are generated. In the second embodiment of the present invention, since the ionization rate is much higher than that of the conventional plasma, the amount of ultraviolet rays is much higher than that of the existing ultraviolet ray. Therefore, when the generated ultraviolet rays are applied to fluorescent lamps and ultraviolet lamps, the lamps have much better performance than conventional fluorescent lamps and ultraviolet lamps. The electrode structure can be used from several millitorr to atmospheric pressure. The current density can be easily adjusted according to the number of micropores 13 formed in the dielectric 12.

In this case, the dielectrics 11 and 12 used in the second embodiment have an electrode structure in which a bulk dielectric is processed and placed on a metal electrode in the process, and a DC spurter system or a radio frequency on the metal electrode. A thin film dielectric is deposited using an RF spurter system, an ion plating system, and an ion beam assisted deposition system. In addition to the inconvenience of having to process the 12, it has the advantage that the thickness of the dielectrics 11 and 12 can be easily adjusted, and the materials of the dielectrics 11 and 12 include glass plates and heat-resistant glass (Pyrex). ), alumina (Al ₂ O _3), formed as a material such as magnesium oxide (MgO), and to use the oxides (oxide) series material to increase the efficiency of the secondary pendulum generated in particular dielectric wind One will.

7 to 10 show an application embodiment applied to the second embodiment, and the application embodiment applied to the second embodiment is illustrated in FIGS. 7 and 8. The ceramic layer 14 is attached to one surface of the dielectric 11 and 12 made of flat metal, and the ceramic layer 14 has the same effect as the microcavity 13 formed in the dielectric 11 and 12. In order to form a plurality of grooves 15, grooves 15 are formed in the dielectric 12 provided in the cathode electrode 5 according to the power supply means (direct current or alternating current). The ceramic layer 14 having no groove is attached to the dielectric 11 to be provided, or the ceramic layer 14 having the groove 15 is attached to the dielectric 12 provided at the electrodes 4 and 5 on both sides. As another embodiment of the application method, one of the dielectrics 11 and 12 is shown in FIG. After forming a plurality of grooves 16 on the surface, the ceramic layer 17 is coated on one surface, or as shown in FIG. 10, the micropores 18 are applied to the dielectrics 11 and 12 of the second embodiment. After forming a wider than the diameter of the formed micropores 13, the ceramic layer 17 is coated on the surface of one side and the inner surface of the micropores 18, the ceramic layer 14 formed on the dielectric (11) 12 By (17) it is possible to generate a much more stable plasma than using only the flat dielectric (11, 12) of the metal.

As described above, the present invention may use a generator for generating a plasma as in the first embodiment, or a general power source as in the second embodiment, and may be used in several millitorr as in the manufacture of fluorescent lamps or mercury lamps. It is possible to increase the efficiency of the lamp while simplifying the process being carried out, and the process is easy to solve the inconvenience of having to make the process low pressure at atmospheric pressure, and to use the principle of atmospheric pressure and micro hollow cathode. As a result, the ionization rate is greatly increased than at low pressure, which results in high light output, thereby miniaturizing the lamp, and since the filament is not used, oxidation of the electrode does not occur, and thus lamp life is semipermanent. Since mercury vapor is not used, it does not cause environmental problems. It is one of the improvements and eliminate harmful humans.

Claims (11)

Plasma is generated through the plasma generator 6 for generating plasma, and the electrode 9 of the plasma generator 6 and one electrode 4 of the lamp 1 coated with the fluorescent material 3 on the inner wall thereof. Is connected to the wire (7), and the other electrode (5) of the lamp (1) is connected to the ground wire (8) so that the plasma flows through the lamp (1), the plasma passes through the interior of the lamp (1) When the fluorescent material (3) coated on the inner wall of the glass tube (2) of the lamp (1) by the ultraviolet rays generated in the plasma when the lamp using a plasma. Using a general power supply (direct current or alternating current), the power supply is connected to the cathode electrode 5 and the anode electrode 4 formed on one side of the lamp 1 through the ballast 10, and the electrodes 4 and 5 on both sides. One side protrudes out of the glass tube 2 of the lamp 1 and the other side is inserted into the glass tube 2 and the dielectric 11, 12 at the end of the electrode 4, 5 inserted into the glass tube 2. And seal the glass tube (2), and the inner wall of the glass tube (2) is coated with a fluorescent material (3) in response to ultraviolet rays generated in the plasma generated through the dielectric (11, 12) Lamp using plasma. The method of claim 2, Dielectrics 11 and 12 having a plate shape in a square or circular shape are formed perpendicular to the electrodes 4 and 5 in both electrodes 4 and 5 of the lamp 1, and the dielectric 11 12) a lamp using a plasma, characterized in that to form a micro-pore 13 according to the type of power supply (direct current or alternating current). The method of claim 3, wherein In the case of a direct current, a flat dielectric 11 having a dielectric 12 having a microcavity 13 formed on a cathode electrode 5 on one side and a microcavity 13 formed on the anode electrode 4 on the other side is formed. And a dielectric (12) having micropores (13) formed in the electrodes (4) and (5) of both the cathode and the anode when the power supply is alternating current. The method of claim 2, Dielectric (11) (12) is a lamp using a plasma, characterized in that the electrode structure by placing a bulk dielectric on top of the normal metal electrode. The method of claim 2, Thin film dielectric (11) using DC spurter system, radio sputter system, ion plating system and ion beam assisted deposition system on metal electrode Lamp using a plasma, characterized in that using a technique for depositing (12). The method of claim 2, A lamp using a plasma, wherein the dielectrics 11 and 12 are formed of a material such as a glass plate, heat resistant glass (Pyrex), alumina (Al ₂ O ₃ ) _, magnesium oxide (MgO), or the like. The method of claim 2, Lamp using a plasma, characterized in that the dielectric (11, 12) formed of an oxide-based material to increase the efficiency of the secondary pendulum. The method of claim 3, wherein A lamp using a plasma, characterized by attaching a ceramic layer (14) having a plurality of grooves (15) formed on one surface of a dielectric (11) (12) made of a flat metal. The method of claim 3, wherein A lamp using a plasma, characterized in that a plurality of grooves (16) are formed on one surface of the dielectric (11) (12) and then the ceramic layer (17) is coated on the grooves (16) on one surface. The method of claim 3, wherein Lamp having a plasma, characterized in that after forming the micro voids (13) in the dielectric (11) (12) is coated on the surface of one side and the inner surface of the micro voids (18).