Limiting device for electromagnetic radiation, notably in an analysis device
AssigneePANalytical B.V.
InventorsJan Boldewijn, Waltherus W. van den Hoogenhof
Life of this patent
Estimating the term…
Abstract
A limiting device (9) for electromagnetic radiation (3; 5; 7) includes an essentially flat beam cross-section limiter (10) which partly or completely encloses at least one passage aperture (12; 13) for beams (5; 7) and is constructed so that it also includes at least one second beam cross-section limiter (14) which, in the active position, constitutes at least one longitudinal component extending at an angle to the first beam cross-section limiter (10).
Claims16
A limiting device (9) for limiting electromagnetic radiation (3;5;7), which device includes an essentially flat beam cross-section limiter (10) which at least partly encloses at least one passage aperture (l2;13) for beams (5;7), characterized in that the device (9) includes at least a second beam cross-section limiter (14) which, in the active position, constitutes at least one component extending at an angle, which is not zero, to the first beam cross-section limiter (10).
A limiting device (9) for limiting electromagnetic radiation (3;5;7), which device includes an essentially flat beam cross-section limiter (10) which at least partly encloses two mutually intersecting passage apertures (12;13) for beams (5;7), characterized in that the device (9) includes a second beam cross-section limiter (14) which includes a passage aperture (16) far beams (5;7) which commences in an edge zone and is only partly enclosed.
Dependencies are inferred from the claim text.