Monolithic optical assembly

G - Physics – 01 – B

Patent

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Details

G01B 9/02 (2006.01) G01J 3/45 (2006.01) G01J 3/453 (2006.01)

Patent

CA 2367785

In accordance with the invention, an improved optical assembly (200) having a monolithic structure is provided. The monolithic optical assembly (200) is useful in interferometers to achieve a fringe effect in a Fourier transform spectrometer, and comprises top (260) and bottom members (270) which are joined into a monolithic structure by first (210) and second support members (220) and a beamsplitter (130). The assembly also comprising a first reflecting assembly (140) in reflecting relation with the beamsplitter (130). An alternate embodiment of the invention has an added reflecting assembly (150) in reflecting relation with the first reflecting assembly (140) and the beamsplitter assembly (130), which allows for the use of multiple wavelength light sources to achieve a fringe effect in a Fourier transform spectrometer.

Cette invention a trait à un ensemble optique amélioré (200) de structure monolithique, des plus utile dans des interféromètres pour produire un effet de franges dans un spectromètre à transformée de Fourier. Cet ensemble se compose d'éléments constituant le fond (270) et le dessus (260) réunis en une structure monolithique par des éléments de support (210, 220) et un diviseur de faisceau (130). Cet ensemble comporte également un premier réflecteur (140) coopérant avec le diviseur de faisceau (130). Dans une variante de cette invention, un réflecteur supplémentaire (150), coopérant avec le premier (140) ainsi qu'avec le diviseur de faisceau (130), autorise l'utilisation de sources lumineuses sur plusieurs longueurs d'ondes et ce, afin de produire un effet de franges dans un spectromètre à transformée de Fourier.

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