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公开(公告)号：US3630626A
公开(公告)日：1971-12-28
申请号：US3630626D
申请日：1970-07-09
Applicant: CAMECA
Inventor： ROUBEROL JEAN-MICHEL
CPC classification number: G01J3/42
Abstract: In an infrared spectrometer with two channels preceded by a device for producing monochromatic radiation and constituted by a collimator, a diffraction grating and a focusing element, the collimator can adopt two angular rest positions by pivoting about an axis perpendicular to the lines of the grating; in these two positions of the collimator, the focusing element directs a monochromatic beam whose wavelength depends solely upon the position of the grating, either onto a first slot or onto a second slot, those slots being respectively coupled to the two channels.
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