Patent ID: 6266139
Filing Date: 2001-07-24
Classification: G01N

Abstract:
Capillary tube holder having a recess for holding a capillary tube, at least one pair of light channels being provided perpendicular to the axial direction of the recess, each pair of light channels having an input light channel for feeding light beams to the capillary tube and an output light channel for relaying the light beams to an evaluation device, and it being the case that the light channels run radially with respect to the recess and open into the recess, characterized in that optical conductors (9, 9' and 10, 10') composed of individual fibers (11) are provided in each input light channel (4) and each output light channel (8), the optical conductors (9, 9' and 10, 10') being arranged upstream of the capillary tube (2), and the diameter of each individual fiber (11) corresponding at least approximately to the inside diameter of the capillary tube (2), and a plurality of individual fibers (11) of the optical conductors (10, 10') being arranged parallel to and/or radially with respect to the longitudinal axis (12) of the capillary tube (2) in the region where the light channels (7, 8) open into the recess (6).