Multiple internal reflection cell optical system for use in infr

Details Multiple internal reflection cell optical system for use in infr Multiple internal reflection cell optical system for use in infr

1983-09-20

1986-06-17

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2502521, 250338, 250339, 350620, 356300, G01N 2135

Patent

active

045958335

ABSTRACT:
The present invention provides reflaxicon optics for directing infrared radiation from a source into the cone-shaped entry end of a cylindrically shaped internal reflection element, as well as for directing radiation from the cone-shaped exit end of the element towards a detector. Preferably, the contours of the surfaces for the secondary and primary mirrors included in the reflaxicon optics are segments of revolution where the segments are defined as off-axis ellipsoids, in the case where the source infrared radiation is converging, and as cones and off-axis paraboloids, respectively, in the case where the source radiation is collimated. The cylindrically shaped internal reflection element is sealed into a tubular member in order to provide a sample chamber. Liquids and fluidized samples preferably can be passed through the chamber for nondestructive IR analysis.

REFERENCES:
patent: 3370502 (1968-02-01), Wilkes, Jr.
patent: 3393603 (1968-07-01), Harrick
patent: 3681577 (1972-08-01), Gasiunas
patent: 3817605 (1974-06-01), Franklin et al.
patent: 3827059 (1974-07-01), Rambauske
Edmonds, "The Reflaxicon, a New Reflective Optical Element & Some Applications", Applied Optics, 12 (8), 8-73, pp. 1940-1944.

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