METALLOHALOGEN LAMP Russian patent published in 1997 - IPC

FIELD: illuminating lamps. SUBSTANCE: metallohalogen lamp uses a burner of optically transparent material with hermetically sealed electrodes. The burner is provided with inert gas, additives providing it with halogens of emitting metals and halogens of tetravalent tin in the amount of 0.01 to 20 umole/cu.cm. Additives providing the burner with halogens of emitting metals are taken in the amount of 0.2 to 25.0 umole/cu.cm, and the inert gas pressure makes up 1.33 to 200 kPa. Iodides and bormides of tetravalent tin are used as halogens of tetravalent tin. Mole ratio of the amount iodides to the amount of bromides is selected within 0.2 to 4.0 umole/cu.cm. EFFECT: enhanced efficiency. 2 cl, 1 dwg , 1 tbl