Method and apparatus for guiding and collecting light in...

Details Method and apparatus for guiding and collecting light in... Method and apparatus for guiding and collecting light in...

G - Physics

01

N

73/58

G01N 21/64 (2006.01) G01N 21/47 (2006.01) G01N 21/51 (2006.01) G01N 21/63 (2006.01)

Patent

CA 1228748

ABSTRACT OF THE DISCLOSURE A method for guiding and collecting light which issues from a light source and which is passed in the form of an incident primary beam to a specimen or like material to be measured are intended to optimise guiding and collec- ting the light, wherein the material to be measured is disposed at a focus of a reflection surface formed at least as half an ellipsoid of revolution, and beams leaving said material are refracted at the reflection surface. In that connection, the primary beam is emitted directly in the centre of the material to be measured. An apparatus is provided for effecting said method in which at least the material to be measured is surrounded by a reflection surface in the form at least of a half ellipsoid of revolution and the material to be measured is disposed at the focus thereof. In an another apparatus, the measuring chamber is defined by a reflection surface in the form of an ellipsoid of revolution, the light source being disposed at one focus thereof and the material to be measured being disposed at the other focus.

470973

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