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US 4,307,350 AGranted
Gas laser
AssigneeCompagnie Generale d'Electricite
InventorsJean-Claude Farcy, Guy Helias
Life of this patent
Estimating the term…
Abstract
The gas laser includes in particular a cathode (2) which is substantially cylindrical about an axis (10) parallel with the axis of the laser cavity, said cathode being provided with protrusions (11) formed by grooves in which insulated conductor wires (12) are disposed, said wires being brought to an electric potential which is positive with respect to that of the cathode, and means for rotating the cathode on its axis. Cathode rotation serves to cool the cathode during operation and can also be used to circulate the active gas. Application to welding and to machining.
Claims13
A gas laser which includes:
- an anode;
- a cathode disposed facing the anode and leaving a space between the anode and the cathode, the cathode including protrusions between which an electrically insulated conductor wire is fixed, said wire being brought to a positive electric potential with respect to the cathode;
- means for setting up successive electric discharges between the anode and the cathode;
- and
- an optical resonant cavity containing an active gas and situated between the anode and the cathode, the cavity pointing in the direction of a first axis perpendicular to the direction of the electric discharge;
- wherein:
- the cathode is substantially cylindrical about a second axis which is parallel to the first axis, the protrusions being formed by grooves provided on the cylindrical surface of the cathode with the conductor wire being inserted in said grooves;
- and wherein the laser includes means for making the cathode rotate about the second axis.
5 more elements
Dependencies are inferred from the claim text.