Gas laser apparatus

Details Gas laser apparatus Gas laser apparatus

1991-05-31

1993-03-23

Scott, Jr., Leon

Coherent light generators

Particular active media

Gas

372103, 372 59, 372 61, H01S 322

Patent

active

051970783

ABSTRACT:
A gas laser apparatus having transparent laser windows provided on a laser chamber body, in which operating gases is sealed if necessary, comprising circulation means connected to the laser chamber body through an intake port and a discharge port for circulating gases within the laser chamber body and filtration means disposed in said circulation means, further comprising cutoff means for preventing the laser windows from being stained and open and closeably cutting off between the laser chamber body and the laser windows, and having a construction wherein in replacing the laser window, the cutoff means is once placed in a cutoff state, and the laser window is separated from the laser chamber body to place the laser window.

REFERENCES:
patent: 3889209 (1975-06-01), Lavarini
patent: 3993965 (1976-11-01), Alves et al.
patent: 4718071 (1988-01-01), Steffen

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