GB484143A - Improvements in or relating to artificially cooled high-pressure mercury-vapour discharge tubes - Google Patents
Improvements in or relating to artificially cooled high-pressure mercury-vapour discharge tubesInfo
- Publication number
- GB484143A GB484143A GB32407/37A GB3240737A GB484143A GB 484143 A GB484143 A GB 484143A GB 32407/37 A GB32407/37 A GB 32407/37A GB 3240737 A GB3240737 A GB 3240737A GB 484143 A GB484143 A GB 484143A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mms
- anode
- cathode
- pressure mercury
- cooled high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 2
- 229910052753 mercury Inorganic materials 0.000 abstract 2
- 229910000497 Amalgam Inorganic materials 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/822—High-pressure mercury lamps
Landscapes
- Discharge Lamp (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Lasers (AREA)
- Discharge Heating (AREA)
Abstract
484,143. Metallic - vapour apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 24, 1937, No. 32407. Convention date, Nov. 27, 1936. [Class 39 (i)] In an artificially cooled high-pressure mercury vapour discharge tube 1 having solid electrodes extending but slightly from a vaporizable amount of mercury or amalgam 6 which partly surrounds them, the cross-sectional area of that part of the anode 3 which extends from the metal exceeds the area of that part of the cathode 2 which extends from the metal. The tube operates on D.C. and the anode is made larger for better cooling. Preferably the area of the anode is 1À5-5 times that of the cathode. A water-cooling jacket 7 surrounds the tubc. In the form shown, the envelope has internal and external diameters of 2 and 4 mms. The diameters of the cathode and anode are 600 and 1,000 microns respectively and these electrodes are 12À5 mms. apart and protrude by distances of 0À5 and 1-5 mms. respectively from the metal surface. The starting gas is argon at 50 mms. and when working at a current of 2 amps. on 500 volts the pressure is 100 atmospheres and the load 800 watts/cm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN40093D DE716566C (en) | 1936-11-28 | 1936-11-28 | In particular, artificially cooled high pressure mercury vapor discharge tubes used to emit radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB484143A true GB484143A (en) | 1938-05-02 |
Family
ID=25944450
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32407/37A Expired GB484143A (en) | 1936-11-28 | 1937-11-24 | Improvements in or relating to artificially cooled high-pressure mercury-vapour discharge tubes |
| GB6569/40A Expired GB538533A (en) | 1936-11-28 | 1940-04-11 | Improvements in or relating to artificially-cooled high-pressure mercury-vapour discharge tubes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6569/40A Expired GB538533A (en) | 1936-11-28 | 1940-04-11 | Improvements in or relating to artificially-cooled high-pressure mercury-vapour discharge tubes |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2152987A (en) |
| DE (1) | DE716566C (en) |
| FR (2) | FR829884A (en) |
| GB (2) | GB484143A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2528969A (en) * | 1945-03-07 | 1950-11-07 | Michael Reese Res Foundation | Lamp |
| US2467687A (en) * | 1946-07-08 | 1949-04-19 | Gen Electric | High-pressure discharge lamp |
| US2682006A (en) * | 1950-03-22 | 1954-06-22 | Scopicon Inc | Means for preventing external coating of water-cooled electric lamps |
| US2673940A (en) * | 1951-04-28 | 1954-03-30 | Gen Aniline & Film Corp | Process and means for preventing film deposits in lamps |
| US3597650A (en) * | 1969-09-23 | 1971-08-03 | Union Carbide Corp | Arc radiation sources |
-
1936
- 1936-11-28 DE DEN40093D patent/DE716566C/en not_active Expired
-
1937
- 1937-11-16 US US174848A patent/US2152987A/en not_active Expired - Lifetime
- 1937-11-24 GB GB32407/37A patent/GB484143A/en not_active Expired
- 1937-11-25 FR FR829884D patent/FR829884A/en not_active Expired
-
1940
- 1940-04-11 GB GB6569/40A patent/GB538533A/en not_active Expired
- 1940-04-12 FR FR51111D patent/FR51111E/en not_active Expired
- 1940-05-06 US US333654A patent/US2245406A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR829884A (en) | 1938-07-08 |
| GB538533A (en) | 1941-08-07 |
| FR51111E (en) | 1941-08-08 |
| US2245406A (en) | 1941-06-10 |
| US2152987A (en) | 1939-04-04 |
| DE716566C (en) | 1942-02-02 |
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