SU1156168A1 - Electrodeless luminiscent lamp - Google Patents

Abstract

1. WITHOUT ELECTRO-FIRE A LUSHKSTSENT LAMP, containing a flask of optically transparent material filled with a working substance, formed by an outer part hermetically interconnected, the maximum diameter of which in cross section is equal to the diameter of the discharge plasma coaxial with it forming the cylindrical cavity in which the solenoids are installed inductor on a ferrite core, having a working winding electrically connected to a high-frequency generator placed in a transition unit e, located between the bulb and base, and a starting winding connected to the starting capacitor, characterized in that, in order to increase (L light output, the outer part of the bulb has a fungal shape.

Description

2. The lamp according to claim 1, in order to facilitate ignition, the plates of the starting capacitor are made in the form of two symmetrically arranged electrically conductive films deposited on the surface of the outer part of the flask. 1156 68 3. The lamp according to claim 2, characterized in that said films u are made light transmitting. 4. A lamp according to claim 2, characterized in that said films are made reflective.

one

The invention relates to electrical engineering, in particular to electrical engineering, namely to electrodeless luminescent low-pressure light sources, intended for use in all households and in everyday life instead of incandescent lamps in general and local lighting.

The purpose of the invention is to increase the light output of the lamps, facilitating their ignition.

Figure 1 shows the principal construction of the lamp proposed; FIG. 2 shows an electrodeless lamp with a reflex coating in FIG. 3, view A in FIG. 2 in FIG. 4 - without an electrode dump, in which the plates of the starting capacitor simultaneously perform the role of a reflex coating.

The lamp consists of a spherical flask 1 of a cylindrical cavity 2. A phosphor layer 3 is applied to the inner surface of the flask. Inside cavity 2, an inductor 4 with a ferrite core is installed, containing a working winding 5 and a starting winding 6. Inductor 4 is connected to a high-frequency power generator 7 located at the transition unit 8, a meladuous collar 1 and a socle 9 located. In FIGS. 1 and 2, reference numeral 10 denotes a plasma discharge. The starter winding 6 is connected by a wire 11c with the plates of the starting capacitor 12. The plates of the starting capacitor 12 can be made in the form of two symmetrically arranged electrically conductive films deposited on the surface of the bulb which can be made both light transmitting, for example, from tin oxide, and reflecting, for example in the form of an aluminum film (Fig. 4), the Gaps 13 in electrically conductive films provide insulation of the plates from each other. Item 14 in FIGS. 2 and 4 is an insulating coating (lacquered or SiO) to ensure electrical safety during lamp operation. Position 15 in figure 2 marked the reflex layer on the surface of the lower part of the flask.

The fungus shape of the bulb allows to obtain the minimum dimensions of the areas in contact with the discharge plasma 10, and as a result, to increase the efficiency of energy conversion of the field into resonant radiation and, consequently, to increase the light output of the lamps.

The discharge is ignited in the lamp by creating primary ionization with an E-discharge, which then goes into a more efficient form of H-discharge. The pre-ionization current is determined by the capacitance of the ignition circuit, to increase the plates of the starting capacitor 12 made in the form of films deposited on the lower part of the external surface of the flask. When using the reflex layer 15 of magnesium oxide (zinc, lanthanum) or a finely dispersed phosphor, the capacitor plates are made of a light-transmitting electrically conductive film, such as tin oxide. At the same time, the luminosity of the lamp is retained in the lower hemisphere. When making alcmini film plates, the lamp has a luminosity almost exclusively in the upper hemisphere. By changing the profile of the lower part of the bulb, it is possible to vary the light distribution of the lamp.

VIZ A

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fZ

Phage. 3

12

FIG L

Claims (4)

1. ELECTRODE-FREE LUMINESE A CENT LAMP containing a flask filled with a working substance from an optically transparent material formed by hermetically connected outer part, the maximum diameter of which in cross section is equal to the largest diameter of the discharge plasma, and coaxial with it inner ₅ forming a cylindrical cavity in which the solenoid ferrite core inductor having a working winding electrically connected to a high-frequency generator located in the transition block located between the bulb and the base and the starting winding connected to the starting capacitor, characterized in that, in order to increase the light output, the outer part of the bulb has a fungal shape. FIG. /> 2. The lamp according to π.1, with a routine in that, in order to facilitate ignition, the plates of the starting capacitor are made in the form of two symmetrically located electrically conductive films deposited on the surface of the outer part of the bulb. 3. A lamp but item 2, distinguishing a 's with the fact that these films are made with light transmitting. 4. The lamp according to claim 2, with a l of a rout and the fact that these films are made reflective.