JPH0256845A - Fluorescent bulb - Google Patents

Abstract

PURPOSE:To reform the inferior point of the luminous power of a glow lamp by using a cold cathode for an electrode couple, and carrying out a glow discharge with a high-frequency AC power at the voice frequency or higher. CONSTITUTION:Electrodes 21 and 22 are formed in an insulating bulb, and these electrodes have sockets 31 and 32 formed at the end and around the end making a form to gear to a normal concave type socket. The electrodes are made to carry out a glow discharge by using a high-frequency wave at the noise frequency or higher, that is, 40Hz or higher. Furthermore, a mercury vapor is sealed in the insulating bulb to emit ultraviolet rays, and luminous light from the fluorescent paint spread on the wall of the insulating bulb is also utilized. That is, the bulb furnishes a clod cathode by the so-called T operation that the secondary electrons are emitted by the striking of ions of the gas and the vapor in the bulb. As a result, not only a sufficient light quantity can be obtained, but also the mounting and the dismounting are convenient enough.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fluorescent bulb that is emitted using high frequency alternating current (approximately 200 to approximately 2000 Hz), which is approximately the audio frequency.

B. Purpose of the Invention A typical fluorescent lamp conventionally used is a fluorescent lamp.

Conventional fluorescent lamps use a coiled filament, usually made of tungsten, as an electrode.Thermionic electrons are generated by heating the coiled filament, which excites mercury atoms in the lamp tube, which generates ultraviolet light. It is based on the principle that the ultraviolet rays irradiate the fluorescent material coated on the tube wall of the lamp, thereby emitting light.

By the way, conventional fluorescent lamps: 1) Use rod-shaped or ring-shaped tubes, which are a little more difficult to handle than incandescent bulbs; -Although the light emitting energy efficiency is better than incandescent bulbs, the light emitting efficiency is not sufficient as it uses a tungsten filament heating electrode as mentioned above. It was not free from such shortcomings.

It is an object of the present invention to overcome these drawbacks of conventional fluorescent lamps and to provide a fluorescent bulb with a novel configuration.

C Structure of the Invention The structure of the present invention consists of a fluorescent bulb in which a non-heat generating electrode that operates at a frequency as high as the audio frequency is provided inside the bulb and a rare gas is sealed therein.

That is, as is clear from the above description of the structure, the fluorescent bulb of the present invention has the following features: (1) a non-heating electrode is used in place of the conventional heating electrode such as a tungsten filament; (2) the voltage applied between the electrodes is It has the following characteristics: - It uses a high-frequency voltage similar to the audio frequency, and - It uses a bulb-shaped lamp, similar to an incandescent light bulb, rather than a tubular lamp like a conventional fluorescent lamp.

FIG. 1 shows an internal layout of an embodiment of the present invention.

As shown in FIG. 1, non-thermal electrodes 21.22 are formed in the bulb 1, and these electrodes are normally connected by forming a socket 31.32 with an end and a periphery of the end, similar to incandescent electrodes. It has a shape that can fit into a concave socket.

Furthermore, rare gas such as argon gas, krypton gas, or a mixture of these gases is sealed inside the bulb.

When an alternating current with a high frequency (approximately 200 to 2000 HG) similar to the audio frequency is applied to the fluorescent bulb shown in FIG. I will do it.

By applying such high frequency current,
The inventor of the present invention has discovered that the fluorescent bulb of the present application can be operated at lower voltage than conventional fluorescent lamps.

This is caused by the reciprocating vibration of the electron cloud due to the high frequency period.
Since the force p velocity of the electron cloud changes greatly, it is understood that this is due to the easy excitation of the rare gas inside the fluorescent bulb.
There is still room for further theoretical elucidation of this point.

FIG. 2 shows a state in which a plurality of fluorescent bulbs of the present invention are connected in series and an embodiment of a high frequency generation circuit is connected thereto.

Note that filling a fluorescent bulb with a rare gas does not mean that other gases are not being filled. For example, carbon dioxide,
It is also possible to fill it with normal air and obtain a spectrum of light with different colors.

It is also possible to obtain high-brightness light emission by dropping mercury into a rare gas. Furthermore, when mercury is dropped, a fluorescent material 4 is applied to the inner wall of the fluorescent bulb as shown in Figure 1, and the fluorescent material is irradiated with ultraviolet light generated by mercury, as in a normal fluorescent lamp. , it is also possible to cause the fluorescent substance to emit light.

Effects of the D Invention In the present invention based on the above-described principle, rare gases are easily excited by the movement of electron clouds according to the period of high frequency waves, so that the heat generated by a tungsten filament, etc., as in conventional fluorescent lamps can be easily excited. Since thermionic emission by the electrode is not necessary,
The voltage applied between the electrodes can be kept low, allowing safe use.

And since no heating electrodes are used, the energy efficiency is even higher than that of conventional fluorescent lamps.

Furthermore, since the light blinks in accordance with a high frequency, the light is emitted with far less flicker than conventional fluorescent lamps.

Furthermore, the noble gas is easily excited by the movement of electrons due to high frequency waves, and as a result, sufficient light is emitted, so there is no need for a tubular lamp like a conventional fluorescent lamp. Since it requires a shorter distance than a lamp, it is possible to form a lamp using a light bulb similar to an incandescent light bulb, and this makes it possible to remove the lamp extremely easily in the same way as an incandescent light bulb.

As described above, the fluorescent light bulb of the present invention is revolutionary in terms of energy efficiency, high quality light, ease of handling, etc.
It has great benefits.

[Brief explanation of the drawing]

112. A broken side view showing the internal arrangement of the fluorescent light bulb according to the present invention. Fig. 2: Example 1 of a circuit for obtaining a high frequency similar to the audio frequency used in the fluorescent light bulb of the present invention. Fluorescent light bulb 22. Non-heat generating electrode 32.・Fluorescent light bulb socket part 4 ・Fluorescent material

Claims (3)

[Claims] (1) A fluorescent bulb in which a non-heat generating electrode that operates with alternating current at a high frequency similar to the audio frequency is provided inside the bulb and a rare gas is sealed. (2) The fluorescent bulb according to claim (1), characterized in that mercury is added dropwise to the rare gas. (3) The fluorescent bulb according to claim (1), wherein the inner wall of the bulb is coated with a fluorescent substance.