Method for coupling light that is emitted from white light LED chip in coupling surface of light guidance cable or fiber bundle in endoscope, involves grounding surface mold at coupling surface so that coupling efficiencies are maximum

摘要

The method involves grounding a surface mold at a coupling surface that is assigned to a LED-chip (6) as a truncated cone, pyramid and spherical convex type such that a surface coupling efficiency and an angular coupling efficiency between the arbitrary designed LED-chip and arbitrary designed light conductor bundles are maximum. A fiber cone or glass cone depends on area size, area geometry and diameter ratio of the coupling surface and exhibits length that ranges from 10 mm to 5 m. Small and larger diameters of the fiber cone or glass cone are utilized as a coupling point at the LED-chip. An independent claim is also included for a device for coupling the light that is emitted from the LED chip in the coupling surface of the light guidance cable or fiber bundle in an endoscope.