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MC Low Pressure Mercury Vapour
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Updated
10-IX-2011 |
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Mercury Vapour lamps operating at low pressure and with discharge tubes of soft glass are classified as the MC style. The vapour pressure is typically just a few hundredths of an atmosphere, these conditions leading to maximum efficacy for the generation of UV-C radiation at 253.7nm. They generally dissipate fewer than 10 watts per centimetre of discharge length.
The MC class of discharge lamp was specifically created to drive fluorescent lamp technology. Because of the great variety of fluorescent lamps, these are classified elsewhere on this site under the section of that name. There do exist however a few specialised low pressure mercury lamps having no fluorescent coating, primarily developed for their ultra-violet output. Such lamps are catalogued under this page. |
| | Glow Discharge |
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GE |
400W |
| S-1 Ultraviolet Sunlamp, Thermionic discharge |
| c. 1950 |
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GE |
85W |
| S-2 Ultraviolet Sunlamp, Thermionic discharge |
| 1939 |
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GE |
4W |
| G4S11 Ozone Producing Thermionic discharge |
| 1959 |
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Thorn |
4W |
| M2 miniature ultraviolet source |
| 1963 |
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| | Positive Column Discharge |
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Philips |
6W |
| TUV Germicidal lamp with internal resistance |
| 1992 |
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Philips |
6W |
| TW Blacklight lamp with internal resistance |
| 1983 |
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Osram |
10W |
| HNS 10W/U OFR U-Tube Germicidal Ozone Free |
| 1973 |
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