Inflation formula of high-frequency electrodeless lamp
An electrodeless lamp and high-frequency technology, which is applied to the parts and electrical components of discharge lamps and gas discharge lamps, can solve the problems of poor surface brightness of the bulb, high discharge voltage, difficult discharge, etc., and achieves an increase in the number of excited atoms, The effect of improving luminous efficiency
Inactive Publication Date: 2012-07-04
何芳
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Problems solved by technology
Due to the improper selection of the gas discharge interval (type and pressure of the gas) of the existing electrodeless lamp, the discharge voltage is high or it is difficult to discharge; the surface brightness of the bulb is poor or it is difficult to fill the bulb
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[0023] The present invention is a high-frequency electrodeless lamp gas filling formula, the bulb body 1 of the electrodeless lamp is filled with an inert mixed gas, and the inert mixed gas is two kinds of inert gases whose ionization potential difference is greater than 5eV, and the air pressure ratio is: [ 100-400 / (D-25)]: [400 / (D-25)], wherein the proportion of gas with low ionization potential is small, and the amount of inflation is: inflation pressure P=1800 / (D-25)Pa, where D is the diameter of bulb body 1, such as figure 1 As shown, d is the outer diameter of the stem tube 2, and the outer diameter of the standard stem tube is 25mm.
[0024] The calculation method of the above-mentioned high-frequency electrodeless lamp gas filling formula includes the following steps:
[0025] 1) Determine the minimum ignition point or ignition voltage value of the discharge of the mixed gas of the high-frequency electrodeless lamp, so as to determine the best working point of the mix...
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The invention provides an inflation formula of a high-frequency electrodeless lamp and a calculation method thereof. Inertia mixed gas is filled in a light bulb of an electrodeless lamp, the inertia mixed gas comprises two inertia gases with the ionization potential difference more than 5eV, and the air pressure ratio is [100-400 / (D-25)]:[400 / (D-25)] according to the paschen's law of P.R=C, wherein the proportion value of the gas with low ionization potential is small, and D is the diameter of the light bulb body. The invention determines the category, the proportion and the inflation quantity of the mixed gas according to an best operating point where the high-frequency electronic discharge lamp discharges and a large number of experiment data so as to enable the work voltage of the electrodeless lamp for gas discharging to be lowest and the discharging to be most stable, and the highest discharging efficiency is achieved. The mixed gas is used for carrying out gas discharging, so that the number of gas atoms in the ionization state and the excitation state in the discharging process is controlled, the number of excitation-state atoms is effectively increased on the basis of maintaining the normal support discharge, and the luminescence efficiency is improved.
Description
technical field [0001] The invention relates to a high-frequency electrodeless lamp. Background technique [0002] High-frequency electrodeless lamp is a new type of electric light source based on the combination of fluorescent lamp gas discharge and high-frequency electromagnetic induction principle. The existing high-frequency electrodeless lamps mainly include low-pressure gas high-frequency electrodeless lamps, microwave lamps, annular fluorescent lamp-type electromagnetic induction lamps and HID high-pressure gas electrodeless discharge lamps. Usually the low-pressure gas discharge high-frequency electrodeless lamp is that the ultraviolet radiation produced by the mixed discharge of low-pressure mercury and rare gas hits the three primary toners on the bubble wall and converts it into visible light. The working frequency used is 2.5-3.0MHz, that is to say, the high-frequency electrodeless lamp The operating frequency is 50,000 to 60,000 times higher than that of ordina...
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IPC IPC(8): H01J61/12H01J61/16H01J65/00
Inventor 许树良
Owner 何芳