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Spectral Line Sources
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Updated
23-VII-2005 |
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| Spectral lamps find a home in special laboratory applications where they are commonly employed as stable, high quality sources of discrete spectral lines. Atomic spectra were originally produced either by creating an arc between electrodes fabricated of the metal to be studied, or by sprinkling a powdered salt into an ordinary gas flame. Both methods produce somewhat unstable results and require constant attention. In the 1940s a range of electric discharge lamps was therefore developed to supersede these crude methods, and could guarantee superior results by virtue of the high purity of the metals contained within the discharge tube. |
| | Osram Spectral Series |
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Osram |
Na |
| Alkali Metal Lamp Sodium Vapour |
| ~1960 |
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Osram |
K |
| Alkali Metal Lamp Potassium Vapour |
| ~1960 |
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Osram |
Rb |
| Alkali Metal Lamp Rubidium Vapour |
| ~1960 |
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Osram |
Cs |
| Alkali Metal Lamp Caesium Vapour |
| ~1960 |
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Osram |
Hg |
| Bivalent Metal Lamp Mercury High Pressure |
| ~1960 |
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Osram |
HgS |
| Bivalent Metal Lamp UV Mercury High Pressure |
| ~1960 |
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Osram |
Cd |
| Bivalent Metal Lamp Cadmium Vapour |
| ~1960 |
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Osram |
Zn |
| Bivalent Metal Lamp Zinc Vapour |
| ~1960 |
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Osram |
Tl |
| Trivalent Metal Lamp Thallium Vapour |
| ~1960 |
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Osram |
Hg-Cd |
| Mixed Metal Lamp Mercury-Cadmium |
| ~1960 |
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Osram |
He |
| Noble Gas Lamp Helium discharge |
| ~1960 |
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Osram |
Ne |
| Noble Gas Lamp Neon discharge |
| ~1960 |
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| | Philips Spectral Series |
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Philips |
He |
| Noble Gas Lamp Helium discharge |
| 1985 |
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Philips |
Ne |
| Noble Gas Lamp Helium discharge |
| 1985 |
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Philips |
Ar |
| Noble Gas Lamp Helium discharge |
| 1975 |
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Philips |
Kr |
| Noble Gas Lamp Helium discharge |
| 1984 |
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Philips |
Xe |
| Noble Gas Lamp Helium discharge |
| 1984 |
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Philips |
Na |
| Alkali Metal Lamp Sodium Vapour |
| 1986 |
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Philips |
Rb |
| Alkali Metal Lamp Rubidium Vapour |
| 1987 |
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Philips |
Hg |
| Bivalent Metal Lamp Mercury Low Pressure |
| 1987 |
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Philips |
Hg |
| Bivalent Metal Lamp Mercury High Pressure |
| 1982 |
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Philips |
Cd |
| Bivalent Metal Lamp Cadmium Vapour |
| 1976 |
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Philips |
Zn |
| Bivalent Metal Lamp Zinc Vapour |
| 1959 |
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Philips |
Hg |
| Quartz Jacketed Lamp Mercury Low Pressure |
| 1985 |
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Philips |
Zn |
| Quartz Jacketed Lamp Zinc Vapour |
| 1960 |
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Philips |
HgCdZn |
| Quartz Jacketed Lamp Mercury-Cadmium-Zinc |
| 1960 |
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Philips |
Na |
| Miniature 4-watt sodium polarimetry lamp |
| 1981 |
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| | GEC 'Osira' Spectral Series |
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Osram-GEC |
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| SL/D 1.3 Sodium Spectral Source |
| 1961 |
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Osram-GEC |
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| ML/D 2.0 Mercury Spectral Source |
| 1964 |
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Osram-GEC |
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| CL/D 2.0 Cadmium Spectral Source |
| ~1955 |
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Osram-GEC |
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| CML/D 2.0 Cadmium & Mercury Spectral Source |
| 1962 |
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| | GE American Lab-Arc Series |
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GE |
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| NA-1 Sodium Lab-Arc Spectral Source |
| 1960 |
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GE |
85W |
| H85A3/UV Lab-Arc Ultraviolet Source |
| 1952 |
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