Claims
- 1. A method of manufacturing a vaporized metal discharge lamp, comprising:
- locating a source of metal halide in a container having an opening therein;
- locating a metal rod and said container with said metal halide therein in an air evacuated chamber;
- moving said metal rod through said opening and at least partially into said container so that at least a tip end of said metal rod is in said container;
- causing said metal halide in said container to deposit onto said tip of said metal rod in said container so as to attach a layer of metal halide onto said tip of said metal rod
- then removing said tip of said metal rod from said container;
- inserting at least said tip of said metal rod, with said metal halide layer attached thereto, into the inside of an air evacuated light emission envelope of said lamp, said lamp envelope being coupled to said air evacuated chamber so as to be air evacuated therewith; and then
- transferring said metal halide layer from said tip of said metal rod to the inside surface of said air evacuated envelope, while at least said tip of said metal rod is in said envelope, by at least heating of at least said tip of said metal rod with said layer of metal halide thereon.
- 2. The method of claim 1, wherein said step of attaching said layer of metal halide to said tip of said metal rod and said step of inserting at least said tip of said metal rod into the inside of said envelope are carried out within a same air evacuated chamber.
- 3. The method of claim 1, wherein said step of causing said metal halide in said container to deposit onto said tip of said metal rod comprises carrying out vapor deposition of said metal halide in said container.
- 4. The method of claim 1, wherein said step of causing said metal halide in said container to deposit onto said tip of said metal rod comprises carrying out sputtering of said metal halide in said container.
- 5. The method of claim 4, wherein said step of heating at least said tip of said metal rod to transfer said metal halide layer from tip of said metal rod to the inside surface of said air evacuated envelope comprises high frequency induction heating.
- 6. The method of claim 3, wherein said step of heating at least said tip of said metal rod to transfer said metal halide layer from tip of said metal rod to the inside surface of said air evacuated envelope comprises high frequency induction heating.
- 7. The method of claim 1, wherein said step of heating at least said tip of said metal rod to transfer said metal halide layer from tip of said metal rod to the inside surface of said air evacuated envelope comprises high frequency induction heating.
- 8. The method of claim 2, wherein said steps of depositing said metal halide layer onto said tip of said metal rod, and said step of inserting at least tip of said metal rod into the inside of said air evacuated envelope of said lamp are carried out continuously.
- 9. The method of claim 1, wherein said steps of depositing said metal halide layer onto said tip of said metal rod, and said step of inserting at least tip of said metal rod into the inside of said air evacuated envelope of said lamp are carried out continuously.
- 10. The method of claim 1, further comprising the step of moving said container containing said source of metal halide therein from a work station to said chamber; closing off said chamber; and then air evacuating said chamber with said container and said metal rod therein.
- 11. The method of claim 10, further comprising connecting said lamp envelope to said chamber, and air evacuating said envelope via said chamber.
- 12. The method of any one of claims 1-11, wherein said step of locating a source of metal halide in said container comprises locating at least one metal halide of the group consisting of TlI, InI.sub.3 and ScI.sub.3 in said container.
- 13. The method of claim 12, wherein said metal rod is made of stainless steel.
- 14. The method of claim 1, wherein said metal rod is made of stainless steel.
- 15. The method of claim 1, wherein said metal halide deposited onto said tip of said metal rod in said container is deposited to a thickness of between about 0.055 mm and about 0.27 mm.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-256877 |
Oct 1987 |
JPX |
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CROSS REFERENCE TO RELATED APPLICATION
This application is a Continuation-In-Part of prior application Ser. No. 07/254,410, filed Oct. 6, 1988, now abandoned.
US Referenced Citations (8)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
254410 |
Oct 1988 |
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