KR20030005789A - Microwave lighting system - Google Patents

Abstract

PURPOSE: A lightning system using microwave is provided to reduce the electric consumption by applying magnetic field to the outer of an electric bulb to shorten an initial lighting-up time of the electric bulb. CONSTITUTION: A magnetron(2) is mounted within a casing to generate a microwave. A high voltage generator(3) boosts an AC(Alternating Current) power up to high voltage to supply it to the magnetron(2). A waveguide(4) is linked with a gateway of the magnetron(2) to transmit the microwave generated therein. An electric bulb(5) generates light. A resonator(6) is covered on fronts of the waveguide(4) and the electric bulb(5), to thereby block the microwave and pass the light emitted from the electric bulb(5). A reflective mirror(7) accommodates the resonator(6) to reflect the light from the electric bulb(5). A cooling fan assembly(8) is provided on a side of the casing to cool the magnetron(2) and the high voltage generator(3). A magnetic field applying unit(10) is mounted on an outside of the electric bulb(5) to apply a strong magnetic field to an emitting material.

Description

Lighting system using microwaves {MICROWAVE LIGHTING SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting system using microwaves, and more particularly, to a lighting system using microwaves which reduces initial lighting time by applying a magnetic field to the outside of a light bulb.

In general, a luminaire using microwaves is a device that applies microwaves to an electrodeless plasma bulb and emits visible or ultraviolet light therefrom, and has a longer lamp life and superior lighting effects than conventional incandescent or fluorescent lamps. .

1 is a longitudinal sectional view showing an example of an illumination system using microwaves.

As shown in the drawing, a conventional microwave lighting system includes a magnetron 2 mounted inside the casing 1 to generate microwaves, and a high voltage generator for boosting and supplying commercial AC power to the magnetron 2 at a high pressure. 3) and a waveguide (4) communicating with the outlet of the magnetron (2) to transmit microwaves generated by the magnetron (2), and microwave energy enclosed with a luminescent material inside and transmitted through the waveguide (4). A light bulb 5 generating light while the encapsulated material is plasma-formed, and a resonator 6 which is covered in front of the waveguide 4 and the light bulb 5 to block microwaves while passing light emitted from the light bulb 5. And a reflector (7) for accommodating the resonator (6) and intensively reflecting light generated from the light bulb, and a cooling fan provided on one side of the casing (1) to cool the magnetron (2) and the high pressure generator (3). Assembly (8) It is configured.

The light bulb 5 is formed of quartz or ceramic and encloses a light emitting material so as to emit light while being excited by microwaves therein, and is welded to the light emitting portion 5a to extend into the casing 1. It consists of the shaft part 5b.

In the figure, reference numeral 5c denotes a bulb motor for rotating and cooling a bulb, 8a denotes a cooling fan, 8b denotes a fan motor, and 9 denotes a mirror.

The lighting system using the conventional microwave as described above operates as follows.

That is, when the control unit inputs a driving signal to the high pressure generator 3, the high pressure generator 3 boosts AC power to supply the boosted high pressure to the magnetron 2, and the magnetron 2 oscillates by the high pressure. Generates microwaves with a high frequency, the microwaves radiate through the waveguide 4 into the resonator 6 to discharge the encapsulated material in the bulb 5 to generate light having a unique emission spectrum, This light reflected the front by the reflector 7 and the mirror 9 to illuminate the space.

However, in the above-described conventional microwave lighting system, the energy per unit time of the microwave should be increased to a certain degree in order to make the light emitting material encapsulated in the bulb 5 into plasma.

To this end, the capacity of the magnetron (2) or high pressure generator (3) should be increased to increase the amount of microwave oscillation.In this case, if the capacity of the magnetron (2) or the high pressure generator (3) is designed large in preparation for re-lighting, There is a problem that the composition of the overall lighting system is complicated and the power consumption is increased more than necessary.

The present invention has been made in view of the problems of the conventional lighting system using a microwave, and it is an object of the present invention to provide a lighting system using a microwave that can shorten the initial lighting time compared to the same power consumption.

1 is a longitudinal sectional view showing an example of a lighting system using a conventional microwave.

Figure 2 is a longitudinal sectional view showing an example of the illumination system using the present invention microwave.

Figure 3 is a schematic diagram showing the main parts in the lighting system using the present invention microwave.

** Description of symbols for the main parts of the drawing **

2: magnetron 4: waveguide

5 bulb 5a light emitting unit

5b: shaft portion 6: resonator

7 reflector 10 magnetic field applying means

11,12: electromagnet

In order to achieve the object of the present invention, illumination using a microwave including a magnetron that generates microwaves, and a bulb filled with an encapsulating material to be emitted inside the resonator communicating with the magnetron and excited by the microwaves supplied from the magnetron. In the system, there is provided a lighting system using a microwave, characterized in that provided with a magnetic field applying means for increasing the energy per unit time of the microwave outside the bulb.

Hereinafter, a light bulb structure of a lighting system using a microwave according to the present invention will be described in detail based on an embodiment shown in the accompanying drawings.

Figure 2 is a longitudinal cross-sectional view showing an example of the illumination system using a microwave of the present invention, Figure 3 is a schematic diagram showing the main part in an illumination system using a microwave of the present invention.

As shown in the drawing, the illumination system using microwaves according to the present invention includes a magnetron 2 mounted inside the casing 1 to generate microwaves, and boosting and supplying commercial AC power to the magnetron 2 at high pressure. A high pressure generator 3, a waveguide 4 which communicates with the outlet of the magnetron 2 and transmits the microwaves generated by the magnetron 2, and a microwave which encloses a luminescent material inside and delivers it through the waveguide 4 Resonator through which light encapsulated by energy is put on the front of the light bulb 5 and the waveguide 4 and the light bulb 5 while generating plasma, and the light emitted from the light bulb 5 passes while blocking the microwaves. (6), a reflector (7) for accommodating the resonator (6) and intensively reflecting light generated from the light bulb, and one side of the casing (1) to cool the magnetron (2) and the high pressure generator (3). Cooling fan It consists of an assembly 8 and a magnetic field applying means 10 mounted outside the bulb 5 to apply a strong magnetic field to the light emitting material inside the bulb.

The light bulb 5 is formed in a spherical shape made of quartz or ceramic and is filled with an encapsulating material so as to emit light while being excited by microwaves, and is coupled to one side of the light emitting part 5a to form a casing 1. It consists of a shaft portion 5b which extends to the inside and is coupled to the bulb motor 5c for rotating the bulb 5 at its end.

The magnetic field applying means 10 is fixedly installed between the outside of the bulb 5 and the inside of the resonator 6, and is composed of electromagnets 11 and 12 having N poles and S poles, respectively, as shown in FIG. Although not shown in the drawings, it is also made of a permanent magnet (not shown) having an N pole and an S pole.

Here, in view of the fact that high heat is generated in the light bulb 5, the illumination system of the present invention is more preferable as the magnetic field applying means 10 than the electromagnets 11 and 12 than the permanent magnets that lose their magnetism at high heat.

In addition, in the present embodiment, the magnetic field applying means 10 is disposed inside the resonator 6, or in some cases, may be disposed outside the resonator 6 as well.

In the drawings, the same reference numerals are given to the same parts as in the prior art.

In the drawings, reference numeral 8a denotes a cooling fan, 8b a fan motor, and 9 a mirror.

Effects of the lighting system using the present invention microwave as described above are as follows.

That is, when the high pressure generator 3 boosts the AC power and supplies the boosted high pressure to the magnetron 2, the magnetron 2 generates microwaves by oscillating by the high pressure, and the microwave generates the microwave through the waveguide 4 (6) Light is generated by discharging the encapsulated material in the bulb 5 while radiating inside, and this light reflects forward by the reflector 7 and the mirror 9 to brighten the space.

At this time, an electromagnet 11 (12) or a permanent magnet (not shown) for generating a magnetic field is provided in the resonator 6, the energy of the microwave radiated into the resonator 6 through the waveguide 4 Efficiently delivered to the light emitting material inside the bulb, this makes it possible to reduce the emission time of the system as well as to reduce the emission time of the system by enabling the plasma of the light emitting material filled inside the bulb even with a low microwave energy per unit time during the initial lighting or re-lighting Induce brightness.

In this way, it is possible to shorten the initial lighting time and the re-lighting time of the system by using the same microwave energy per unit time without increasing the capacity of the magnetron or the high-pressure generator, and also when the magnetron The capacity of the high-voltage generator can be reduced rather, resulting in an efficient lower power consumption of the overall system.

Lighting system using a microwave according to the present invention, by placing an electromagnet or permanent magnet that generates a magnetic field on the outside of the bulb to enable the lighting even in less energy per unit time of microwave than conventional, the bulb at the initial lighting or re-lighting By applying a lower electric field to the inside of the device, it is possible to make plasma of the light emitting material and the initial lighting time can be reduced by using the same microwave energy per unit time as before, so the initial lighting of the system without increasing the capacity of the magnetron or the high pressure generator This can shorten time or re-light time, resulting in lower power consumption.

Claims (2)

In a lighting system using a microwave including a magnetron that generates microwaves, and a light bulb filled with an encapsulating material to be emitted inside the resonator in communication with the magnetron and excited by the microwaves supplied from the magnetron. Illumination system using a microwave, characterized in that provided with a magnetic field applying means for increasing the energy per unit time of the microwave outside the bulb. The method of claim 1, The magnetic field applying means is an illumination system using microwaves, characterized in that the electromagnets or permanent magnets having different polarities.