FIELD: fiber optic equipment.
SUBSTANCE: group of inventions relates to fiber optic equipment and is intended for use in various fiber optic systems using the incoherent sources of radiation, including in introscopes, light guides based remote power supply sources. Device for implementation of the method of the non-coherent radiation introducing into the optical fiber includes, in-series installed on one optical axis and optically connected mirror, source of the incoherent optical radiation, lens with elliptical surface, glass plate with the refractive index significant dependence on temperature to provide the light beam self-focusing, gradient rod lens, light guide, mirror is made in the form of a hollow sphere with an internal reflective coating, in which side hole a lens with the elliptical surface is installed. Source of the incoherent optical radiation is located inside the hollow sphere so that the radiation from the incoherent optical radiation source, concentrated by the spherical mirror and lens with ellipsoidal surface, exits from it in the form of a quasi-parallel beam, wherein the glass plate, the gradient rod lens and the light guide are located one after the other, characterized by the fact, that it comprises a light filter and an iris installed after the lens with elliptical surface one after the other in series, wherein at the iris the transmission is maximum at the center and gradually drops to zero towards the edges.
EFFECT: technical result is increase in the efficiency of the radiation input from the incoherent source with a given spectral region into the light guide.
2 cl, 1 dwg
