Coherent light generators – Particular active media – Gas
Patent
1988-09-19
1989-08-29
Scott, Jr., Leon
Coherent light generators
Particular active media
Gas
372 88, 372 56, H01S 303
Patent
active
048624756
ABSTRACT:
A metal vapor laser tube of the hollow-cathode type which is simplified in construction and can be assembled by a simple work without much skill and wherein a negative glow portion can be produced stably and an essential function is attained satisfactorily. The metal vapor laser tube comprises a central metal tube member serving as a cathode, and a pair of hard glass end tube members, metal cap members and holding tube members connected in this order in an air-tight relationship to the opposite ends of the central tube member. A Brewster window or a mirror is provided on each of the cap members. An anode member is securely inserted in each of a lot of through-holes formed in the central tube member by way of an insulating member such that an end thereof may be positioned in a discharge opening of the through-hole. A container for containing a working metal therein is securely inserted in each of a lot of different through-holes formed in the central tube member such that the inside thereof may communicate with a fine axial hole of the central tube member. The central tube member constitutes an enclosure for vapor of the working metal.
REFERENCES:
patent: 4701925 (1987-10-01), Fuke et al.
patent: 4710938 (1987-12-01), Fuke et al.
The Transactions of the IECE of Japan, vol. E 69, No. 4, Apr. 1986 "Characteristics of He-Cd White Light Laser".
Laser Study, vol. 14, No. 10, Oct. 1986.
Jr. Leon Scott
Ushio Denki Kabushiki Kaisha
Ziems Robert F.
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