FIELD: physics.
SUBSTANCE: in the claimed device for introducing incoherent optical radiation into lightguide containing a mirror, an incoherent optical radiation source, a lens and an optical lightguide sequentially mounted on one optical axis and optically interconnected, a light filter, a gradient rod lens unit, and Y-branchers are additionally mounted. Herewith the lens has an ellipsoidal surface and is mounted in the lateral aperture of the mirror, made in the form of a hollow sphere with an internal mirror coating, the source of incoherent optical radiation is located inside the hollow sphere so that the optical center of the incoherent optical radiation source coincides with the center of the mirror. The gradient rod lens unit, the Y-branchers and the lightguide are located closely next to each other, and the light filter is located in front of the gradient rod lens unit.
EFFECT: increasing the efficiency of the radiation input from the source of incoherent optical radiation into the lightguide.
1 dwg
