Gas sample vessel for a gas analyzer

Details Gas sample vessel for a gas analyzer Gas sample vessel for a gas analyzer

2005-05-03

2005-05-03

Font, Frank G. (Department: 2877)

Optics: measuring and testing

For light transmission or absorption

Of fluent material

C356S244000

Reexamination Certificate

active

06888637

ABSTRACT:
A gas sample vessel for a gas analyzer comprising a housing enclosing a cylindrical resonator cavity. Two mirrors which limit the resonator cavity are fastened to the housing for coupling in and feeding back the measurement light proceeding from an illumination source. The mirrors are curved concavely at their surfaces facing the housing and the housing is curved convexly at its surfaces facing the mirrors with approximately the same radius of curvature. The centers of curvature lie in the center axis of the resonator cavity and the mirror surfaces of the mirrors are portions of the concavely curved surfaces facing the housing.

REFERENCES:
patent: 3795450 (1974-03-01), Munk
patent: 3998557 (1976-12-01), Javan
patent: 4188126 (1980-02-01), Boisde et al.
patent: 4747687 (1988-05-01), Hoppe et al.
patent: 4822166 (1989-04-01), Rossiter
patent: 4988195 (1991-01-01), Doyle
patent: 5184192 (1993-02-01), Gilby et al.
patent: 5432610 (1995-07-01), King et al.
patent: 5450193 (1995-09-01), Carlsen et al.

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