JPH0414846Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention seals a spherical electrode in the center of a glass bulb.
By changing the type and amount of gas sealed in the glass bulb and the value of the high voltage applied to the center electrode, it is possible to change the color and number of linear discharge light directed from the center electrode toward the inner peripheral surface of the glass bulb. This invention relates to a decorative discharge light bulb in which the linear discharge light is generated and the discharge position of the linear discharge light is moved on the surface of the spherical electrode, so that the movement of the plurality of colored discharge lights tends to attract external attention. It is.

To explain the drawings of the present invention, Fig. 1 shows a spherical electrode at the center by partially cutting out the glass spherical surface of the decorative discharge lamp according to the present invention, and 1 shows a spherical electrode 2 sealed in the center. The glass bulb and center electrode 2 are made of conductive carbon or the like, and covered with an insulator 3 such as ceramic. Reference numeral 4 denotes an exhaust pipe for evacuating the inside of the glass bulb 1, and after exhausting the inside of the glass bulb 1, a mixed gas of neon, argon, xenon, etc. is sealed inside the glass bulb 1. Reference numeral 5 denotes a lead wire for high frequency and high voltage applied to the center electrode 2, which is not shown, but is applied from an external high frequency and high voltage power source through a suitable voltage regulator.

In the decorative discharge lamp constructed as described above, the discharge phenomenon of the present invention differs depending on the type of gas sealed in the glass bulb, the gas pressure, and the high frequency and high voltage values applied to the center electrode, but the experimental results In this case, the pressure of the filled gas is preferably 100 Torr to 600 Torr, and the applied high frequency is 10 KHz to 50 KHz, and the voltage is several KV.
Desirably, as shown in FIG. 2, a linear discharge is generated from the surface of the spherical insulator 3 covering the central spherical electrode toward the surrounding glass spherical surface 1. The color of this linear discharge light 6 varies depending on the type of gas sealed in the glass bulb, and the number of discharge lights generated depends on the amount of gas sealed and the value of the high voltage applied to the center electrode. The shape is also linear or curved. Also, since the position of the discharge light moves on the surface covered with the center electrode, the discharge light rotates within the glass bulb, and when the discharge light reaches the surrounding glass sphere, as shown in Figures 3 and 4. As shown, the tip 7 of the discharge light extends along the inner peripheral surface of the glass bulb, forming a two-lobed or three-lobed petal-like line 8.

Although it is difficult to define the principle by which discharge light rotates on the surface of the central spherical electrode, the following can be considered as a result of experiments.

(1) Non-uniformity of the conductive material of the central electrode (resistance value,
density) (2) Non-uniformity of potential distribution on the surface of the central spherical electrode.

(3) Since multiple types of gas are sealed, gas ionization and excitation voltage are uneven.

(4) It is thought that due to the non-uniformity of the potential distribution on the inner wall surface of the outer glass bulb surrounding the center electrode, the point of discharge generation on the surface of the center spherical electrode moves instantaneously as a result.

As described above, the light bulb according to the present invention creates color inside the glass bulb by changing the type and amount of gas sealed in the glass bulb and the value of the high frequency high voltage applied to the spherical electrode at the center. It is possible to generate multiple lines of linear discharge light with different shapes, and the discharge light can be moved on the surface of the spherical center electrode. Rotating colored discharge light tends to attract external attention, and if a product is placed close to the light bulb so that it rotates, the discharge light inside the light bulb will rotate as the product rotates. The light bulb of the present invention has a variety of practical effects as a decoration, such as the fact that the display effect of the product can be further improved because the light bulb changes.

[Brief explanation of the drawing]

FIG. 1 is an external view of the decorative light bulb according to the present invention, with a portion of the glass bulb cut away to show the central spherical electrode. 2 to 4 are explanatory views of the operation of the decorative light bulb of the present invention. 1...Glass bulb of a light bulb, 2...Center spherical electrode, 3...Insulator covering the center electrode, 4...Exhaust pipe, 5...High frequency and high voltage lead wire applied to the center electrode.

Claims (1)

[Scope of utility model registration request] A spherical electrode made of conductive carbon or the like and covered with an insulator such as glass or ceramic is sealed in the center of a glass bulb, and a mixed inert gas such as neon, argon, xenon, etc. It is a monopolar discharge lamp that generates multiple linear or curved colored discharge lights from the central spherical electrode toward the inner peripheral surface of the glass bulb by applying high frequency and high voltage to the central spherical electrode. A decorative discharge light bulb, wherein the colored discharge light moves on the surface of a central spherical electrode.