Light source / Lamp parts
Electrode materials for discharge lamps
Tungsten, which has the highest melting point among all metals, is used for electrode material for discharge lamps. Original tungsten material is inadequate for recent discharge lamps that require higher output and larger size. SMD-W (our tungsten grade), highly-densed tungsten material with our own know-how, can provide superior characteristics for discharge lamps that cannot be obtained with ordinary tungsten. Not only a rod material, according to your requests, but we can also offer products with final shape and finishing of the electrode processed.
| Type | Grade | Features |
|---|---|---|
| SMD-PFW | Standard grade | For all discharge lamps |
| SMD-EP | High-performance grade | Improves flushing-resistant performance with grains controlled |
| SMD-KT | Ultra performance grade | Further-advanced EP specifically intended for electrodes |
| SMD-4N | Lower impurities grade | Used for types sensitive to impurities (W purity: 99.99％ min.) |
| SMD-5N | Ultra low impure content grade | Suitable for highest purity requirement (W purity: 99.999％ min.) |