Technological developments extending lifetime of tungsten halogen lamps

摘要

We investigated the inner gas and getter of tungsten halogen lamps and found that the reduced rate of tungsten vaporization due to increased inner gas plays a central role in extending a lamp's lifetime by the tungsten transfer calculation method. B analyzing the damage to an arc-discharged glass bulb, it was found that lamps having a higher pressure than a constant value are more resistant to damage if they have suitable fuse. Therefore, it is possible to design an extended lifetime for lamps.