SU373792A1 - GAS DISCHARGE SOURCE OF LIGHT - Google Patents

Description

one

Electric discharge light sources are known, the bulb of which has an oblong shape with one or more grooves in the form of a groove or grooves on the side surface, each of which forms at least one complete turn about the longitudinal axis along a helical line and captures most of the length flasks, as a result of which the length of the discharge gap is increased while maintaining the size of the source.

Also known are gas-discharge spiral light sources designed for optical pumping of solid-state active media and having a flask in the form of a spatial spiral wound in such a way that its coils do not come into contact with each other. Such sources are convenient for mounting them parallel to the active body in one of the two foci of the elliptical reflector and are more efficient from the point of view of the beneficial use of the light flux.

In addition, gas-discharge light sources with a U-shaped discharge channel, bounded by the walls of a tubular bulb made of optically transparent material, and electrode assemblies placed at one end of the bulb in the legs forming the latter are known. The disadvantage of such light sources is the relatively short length of the discharge gap, limiting the use of high voltage discharge circuits without the use of arrays, and consequently, large values of the luminous flux.

To lengthen the discharge channel without increasing the size of the source in the proposed light source, the bulb is made of two tubes twisted into a bundle and interconnected at one end of the tubes.

The legs of the bulb can be oriented relative to the axis of the harness arbitrarily, for example at an angle of 90 °, or parallel to the harness and mounted in one monoblock.

FIG. 1 shows the described light source with legs oriented at a 90 ° angle to its longitudinal axis; in fig. 2 - the same, with the legs oriented parallel to the longitudinal axis and made in one monoblock.

The light source of increased power, designed, for example, for pumping lasers (see Fig. 1), is a twisted-flask / quartz glass flashed from two tubes, filled with xeon under a pressure of 300 mmHg. Art. In the legs 2 of the bulb, oriented arbitrarily to the glow body of the tow, for example at an angle of 90 °, the electrode assemblies and 4 are mounted, consisting of tungsten electrodes 5 pressed into the legs of the covar holders 6. The legs of the flask are vacuum-tightly connected to the holders.

electrodes with the help of metal cylinders 7 and solder 8 tin-titanium. The cavity A serves to cool the electrodes when the light source is operating in frequency mode. The harness tubes forming the discharge channel at the end opposite to the electrode assemblies are vacuum-tightly connected either directly or through intermediate adapters.

Such an embodiment of the light source makes it possible to increase the compactness of the luminous body, the penetration strength of the source due to the elongation of the discharge gap and the light output.

In a pulsed light source (see Fig. 2), the electrode assemblies are made in one monoblock 9 of quartz glass. Tungsten electrodes are welded to the strips 10 of molybdenum foil, and the latter - to conclusions 11. This design is used to create low-power light sources that work

in the mode of short, frequently repeated flashes.

Subject invention

Claims (2)

1. A gas-discharge light source with a U-o6 different discharge channel bounded by the walls of a tubular bulb made of an optically transparent material, and electrode assemblies placed at one end of the bulb in the leg-forming processes of the latter, in order to lengthen the discharge channel without increasing the dimensions of the light source, its bulb is made of two twisted into a bundle and interconnected in one end of the tubes. 2. The light source according to claim 1, characterized in that, in order to miniaturize it, the legs of the bulb are oriented parallel to the axis of the tow band and mounted in one monoblock.