Optics: measuring and testing – Sample – specimen – or standard holder or support – Fluid containers
Patent
1979-03-19
1980-09-30
Corbin, John K.
Optics: measuring and testing
Sample, specimen, or standard holder or support
Fluid containers
356440, G01N 110
Patent
active
042252326
ABSTRACT:
Photometric cell of the type comprising two juxtaposed spherical half-mirrors M.sub.1 and M.sub.2 and a third spherical mirror M facing mirrors M.sub.1 and M.sub.2, the three mirrors having the same radius of curvature, while mirrors M.sub.1 and M.sub.2 have their centers of curvature C.sub.1 and C.sub.2 located on mirror M and slightly displaced with respect to one another and mirror M has its center of curvature C between the two mirrors M.sub.1 and M.sub.2, optical means being provided for introducing a measuring light beam into the cell through an entrance diaphragm E and for extracting it therefrom after multiple reflections on said mirrors through an exit diaphragm S, wherein the mirror M is truncated perpendicular to a line joining the centers C.sub.1 and C.sub.2, the truncated portion of the mirror being replaced by an optical system L operating by transmission, the entrance diaphragm E and exit diaphragm S being positioned level with said optical system L on a line perpendicular to lines C.sub.1 -C.sub.2, and wherein it also comprises a third half-mirror M.sub.3, the optical system L being such that the half-mirrors M.sub.1 and M.sub.2 are conjugate to one another, while the third half-mirror M.sub.3 has a center of curvature C.sub.3 located on the line joining the two diaphragms E and S conjugate to one another by the mirrors and the optical system L.
REFERENCES:
patent: 3861809 (1975-01-01), Hall, Jr.
Biernacki et al., "A Long Path Length, Low Temperature Multiple Traversal Cell" Applied Spectroscopy, vol. 26, No. 6, pp. 648-650, Dec. 1972.
White, "Long Optical Paths of Large Aperture" J. Opt. Soc. Am., vol. 32 No. 4, pp. 285-288, May 1942.
Boisde Gilbert
Boissier Alain
Commissariat a l''Energie Atomique
Corbin John K.
Koren Matthew W.
LandOfFree
Photometric cell does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photometric cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometric cell will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1166818