Claims
- 1. An electrodeless lamp, comprising,
- a bulb comprised of an envelope and a discharge forming medium in said envelope,
- excitation means for generating excitation electromagnetic power,
- a coaxial fixture having inner and outer conductors for coupling said excitation electromagnetic power to said bulb, said excitation power being so large as to cause arc attachment to occur in the bulb near said inner conductor if the bulb is not rotated in such manner as to prevent arc attachment from occurring, and
- means for rotating said bulb at a sufficiently high speed and in a direction such that different parts of the bulb are proximate said center conductor as the bulb rotates, to prevent arc attachment from occurring.
- 2. The lamp of claim 1 wherein the diameter of said bulb is less than 1/2 inch.
- 3. The lamp of claim 2 wherein said discharge forming medium when excited includes as a radiating component sulfur which emits principally visible light, in the form of molecular radiation.
- 4. The lamp of claim 2 wherein said discharge forming medium when excited includes as a radiating component selenium which emits principally visible light, in the form of molecular radiation.
- 5. The lamp of claim 2 wherein said inner conductor is hollow, further comprising means for feeding cooling fluid through said inner conductor which is directed at the bulb.
Parent Case Info
This application is a divisional of U.S. application Ser. No. 176,273, filed Dec. 30, 1993 now abandoned, which is a continuation-in-part of U.S. application Ser. No. 08-071,027, filed Jun. 3, 1993, now U.S. Pat. No. 5,404,076 and U.S. application Ser. No. 07-805,563 filed Dec. 13, 1991, now abandoned and U.S. application Ser. No. 953,056, filed Sep. 30, 1992 now abandoned and U.S. application Ser. No. 976,938, filed Nov. 18, 1992 now abandoned; U.S. application Ser. No. 08-021,027 filed Jun. 3, 1993 is a continuation of U.S. application Ser. No. 07-604,487 filed Oct. 25, 1990 now abandoned.
US Referenced Citations (7)
Related Publications (3)
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Date |
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805563 |
Dec 1991 |
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953056 |
Dec 1992 |
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976938 |
Nov 1992 |
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Divisions (1)
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Number |
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176273 |
Dec 1993 |
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Continuation in Parts (1)
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71027 |
Jun 1993 |
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