Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
77 words
A gas laser including an elongated envelope (11) containing a gaseous medium, hollow coaxial anode and cathode means (16,18) for connection to a voltage supply to produce an electrical discharge in the gaseous medium, and reflector means (60, 62) at or near the ends of the envelope, characterized in that the cathode means (18) comprises at least two separate cathodes and the anode means comprises at least two short cylindrical anodes centrally located between said separate cathodes.
Claim 2
Dependent Claim
77 words
A gas laser including an elongated envelope (11) containing a gaseous medium, hollow coaxial anode and cathode means (16,18) for connection to a voltage supply to produce an electrical discharge in the gaseous medium, and reflector means (60, 62) at or near the ends of the envelope, characterized in that the cathode means (18) comprises at least two separate cathodes and the anode means comprises at least two short cylindrical anodes centrally located between said separate cathodes.
Claim 3
Dependent Claim
68 words
A gas laser including an elongated envelope (11) containing a gaseous medium, hollow coaxial anode and cathode means (16, 18) for connection to a voltage supply to produce an electrical discharge in the gaseous medium, said cathode means comprising at least two separate cathodes located symmetrically adjacent the ends of said anode means, characterized in that said anode means comprising a split anode centrally located between said cathodes.
Claim 4
Dependent Claim
68 words
A gas laser including an elongated envelope (11) containing a gaseous medium, hollow coaxial anode and cathode means (16, 18) for connection to a voltage supply to produce an electrical discharge in the gaseous medium, said cathode means comprising at least two separate cathodes located symmetrically adjacent the ends of said anode means, characterized in that said anode means comprising a split anode centrally located between said cathodes.
Claim 5
Dependent Claim
47 words
A gas laser according to claim 1 or claim 2 wherein the anodes and the cathodes are of metal, with the anodes electrically insulated from each other and the cathodes by ceramic members, the ceramic members being secured to the anodes and the cathodes by metal-to-ceramic seals.
Claim 6
Dependent Claim
15 words
A gas laser according to claim 2 wherein the gaseous medium includes a metal vapor.
Claim 7
Dependent Claim
16 words
A gas laser according to claim 4 wherein the gaseous medium comprises cadmium vapor and helium.
Claim 8
Dependent Claim
31 words
A gas laser according to claim 5 wherein the ends of the envelope are sealed by Brewster windows and further including reflectors coaxially aligned and adjacent each of said Brewster windows.
Claim 9
Dependent Claim
41 words
A gas laser according to claim 5 wherein the ends of the envelope are sealed by reflectors, one of the reflectors being reflective of the output beam of the laser and the other of the reflectors partially transmitting the output beam.
Claim 10
Dependent Claim
31 words
A gas laser according to claim 7 including means associated with the cathodes for coupling the cathodes to the envelope whereby the heat generated therein is dissipated to the external environment.
Claim 11
Dependent Claim
24 words
A gas laser according to claim 8 including auxiliary anodes forming another portion of the envelope and positioned adjacent the ends of the envelope.
Claim 12
Dependent Claim
69 words
A gas laser according to claim 9, the laser being configured to comprise more than two cathodes and more than a single split anode, the total number of cathodes and split anodes being optically aligned to increase the overall gain of the laser, the inner diameters of the cathodes being selected to match the laser cavity mode such that optimal laser output power extraction for each color is produced.