Claims
- 1. A tubular fluorescent lamp comprising a sealed light-transmitting envelope, electrodes therein, a gaseous filling therein, mercury vapor therein, and a substantially transparent coating of indium oxide on the inside surface of said envelope, said indium oxide having the indium in a state of oxidation lower than in In.sub.2 0.sub.3.
- 2. A lamp as in claim 1 and a coating of phosphor on said coating of indium oxide.
- 3. A lamp as in claim 1, in which the envelope is an elongated glass tube, and the electrodes are at opposite ends thereof.
Parent Case Info
This is a continuation of application Ser. No. 788,509, filed Jan. 2, 1969, now abandoned.
US Referenced Citations (5)
Continuations (1)
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Number |
Date |
Country |
Parent |
788509 |
Jan 1969 |
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