摘要:
A substrate having a plurality of light emitting diodes united therewith lies on a plane containing the longitudinal axis of an insertion unit of an endoscope and its neighborhood. Likewise, part of a first objective surface lies on the plane containing the longitudinal axis of the insertion unit of the endoscope and its neighborhood. As long as the diameter of the insertion unit remains unchanged, the plane containing the longitudinal axis of the insertion unit of the endoscope and its neighborhood provides the largest area for the light emitting diodes. The light emitting diode sub-assembly is therefore placed on the plane, whereby the outer diameter of a distal endoscope part can be made as small as possible.