The father of China's electric light source ━ Cai Zuquan said: 'we are deeply to the light bulb light up relatively easily and good point is extremely difficult. GLED for research and development, to make it relatively easy to light up, to do it a little good, really achieve 'incandescent light bulb appearance, effect of energy-saving lamps, energy-saving lamps life', apparently there is also a difficult journey!
let's introduce GLED to comprehensive work mechanism and its substantive characteristics. A, how it works:
1. Figure 1 as precession discharge diagram, e in figure 1 a as the anode, c as the cathode. GLE optimization by Ω shaped cathode screw and the wick of columnar anode in the cavity; Ω conformal coated oxide cathode screw at the top of the arc part of the electron powder, Ω shaped feet coated on both sides of the spiral cathode electric vacuum zirconium powder; Cylindrical anodes in the inner cavity central; Working gas and other discharge lamps are the same.
2. Electrons from Ω shape cathode screw at the top of the arc section of the hot spots, due to the repulsion effect near the cathode, the electrons in the left hot spot has a large enough angular momentum, so most of the electronic don't immediately hit the anode, and into the cylindrical anode and Ω cathode established symmetric logarithmic electric field ( Near the core column side) Spiral orbit, continuous do e form, has a long mean free path ( Up to 10 meters) 。 E in electronic form in the process of the spiral orbit mercury vapor is triggered, electronic also lost energy and orbit gradually narrowed, finally rested on cylindrical anodes.
3. Mercury vapor are generated and the role of strong electric field due to mercury ions, make the angular momentum of mercury ion also have a large enough, so the vast majority of mercury ion don't immediately hit the hot spots, and into the cylindrical anode and Ω cathode built fan-shaped radial electric field ( Away from the core column side) , hot spots as the focal point of continuous do size elliptical orbit ( Due to the cylindrical anode repulsion effect of mercury ion, the axis of the ellipse) on the outside of the wick , also has the very long mean free path. In the process of mercury ion do elliptical orbit mercury vapor continue to be inspired by ionization, ultraviolet radiation from a large amount of mercury atomic transition, arcing discharge ball. Mercury ions due to constantly inspire and transition also lost energy and orbit gradually narrowed, also complete e form of a spiral movement, finally rested on Ω cathode hot spot.
4. Due to the interaction between the plasma ( The same particles repel each other, heterogeneous particles attract each other) , electronic and mercury ions are doing an e shape of spiral discharge every moment and don't a e shape of spiral orbit, namely e precession movement, so as to complete e precession discharge, an one integrated mass of the arc discharge ball!
2, feature description
GLED has the effect of incandescent lamp, energy-saving lamp appearance and electrodeless lamp life, show as follows:
1. Incandescent light bulb appearance
GLED e precession of discharge excited one integrated mass of the arc discharge ball shape matching with traditional incandescent bulb shell, this is obvious.
2. Energy-saving lamps effect
are energy saving, energy-saving lamps mainly adopt the new development of rare earth fluorescent material ( Tricolor phosphors) 。 Adopting the new development of rare earth tricolor phosphor powder production of compact fluorescent lamps - Energy-saving lamps, realized the high photosynthetic efficiency and high color rendering better unified, use it to replace incandescent lamp, can achieve certain energy-saving effect. Energy saving effect and this is only because of its glass tube coated tricolor phosphors, make the person to feel fresh and bright color, like the brightness increased by 30%, and the appearance of the lamp design has nothing to do!
under high frequency energy-saving lamp, lamp light efficiency than 50 ( 60) Hz was improved obviously. This is due to the electrode as anode and a half weeks of the disappearance of the oscillation, reduce the electrode loss reduction, not because the area is column efficiency. For some fluorescent study found that fluorescent lamp from 50 hz ac power supply frequency increases to more than 20 KHZ, lighting effect can generally be increased by 10%.
GLED adopts dc light, and there is no oscillation electrode, blister and tricolor phosphors, about 40% energy saving is also can be done.
3. Electrodeless lamp life
the launch of discharge cathode coating material faces backward refers to after leaving the cathode emitting material molecules, ionized into positive ions, under the influence of pointing at the cathode electric field, the material back to the cathode. In the case of thermal emission cathode capacity is large, the launch of about 85 ~ 90% thermal evaporation return to cathode material, this greatly reduced the emission material consumption rate.
GLED adopts dc lamps, cylindrical anode to Ω cathode has a constant dc field, thermal evaporation of about 85 ~ 90% return the cathode emitting material, making it the cathode electron powder almost no loss, its life and electrodeless lamp is also desirable.