optical fuehler of optodentyp, particularly for use in the spektralfluorimetrie and raman spectrometry.

摘要

It comprises a first light guide (14) and a second light guide (22) which surrounds the first. One of the two guides conveys to a medium to be analyzed a first light for exciting this medium which then emits a second light. A perforated mirror (38) placed opposite the guides reflects the second light so that it is captured by this other guide, whilst not allowing the first light to be captured by it. The mirror is also such that, in a neighbourhood of the sensor-medium interface closest to the guides, and in any plane cross-section of the medium, contained in this neighbourhood and perpendicular to the guides, the surface traversed by the first light is substantially equal to that which emits a quantity of second light which is captured by the said other guide. IMAGE