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US 3,942,062 AGranted
Metal vapor laser discharge device
AssigneeRCA Corporation
InventorKarl Gerhard Hernqvist
Life of this patent
Estimating the term…
Abstract
A laser device employs two concentric enclosures with rapid pre-heat elements located between the two enclosures. The device contains a vented bore tube, two electrodes, and a metal vapor source within the innermost of the two enclosures.
Claims2
A metal vapor laser discharge device which is responsive to a given operating voltage applied thereto for producing a discharge therein, said device comprising:
- a longitudinal bore tube having open ends;
- a second tube coaxially surrounding said bore tube and extending over at least the full length of said bore tube, said second tube comprising a hollow cylindrical portion coaxially surrounding said bore tube, a transverse end wall at one end of said cylindrical portion, and a tubular neck extending outwardly from said end wall;
- means for preventing vapor discharge in a region between said bore tube and said second tube;
- a metalic vapor source within said second tube;
- two electrodes positioned near opposite ends of said bore tube;
- and
- a gas filled envelope enclosing at least the portion of said second tube surrounding said bore tube, the one end of the cylindrical portion extending outside said envelope.
4 more elements
Dependencies are inferred from the claim text.