RELAY SET FOR AN ENDOSCOPE AND AN ENDOSCOPE

摘要

The invention relates to a relay set for an endoscope that includes a plurality of relay sets of the same type, having two plano-convex rod lenses which face one another with their planar end surfaces, and an achromat that is arranged between these rod lenses, particularly in a central aperture plane of said relay set. Said achromat takes the form of an arrangement of at least two lenses which have different refractive indices and Abbe numbers, and is located at a distance from the rod lenses. The invention also relates to a corresponding endoscope. The claimed relay set is improved in that one lens of said achromat consists of ED glass that has an Abbe number of at least 75, in particular at least 77.

主权项

1. A relay set for an endoscope with a plurality of relay sets of the same type, the relay set comprising:
two plano-convex rod lenses which face one another with their planar end surfaces; and an achromat arranged between the rod lenses, wherein the achromat is configured as an arrangement of at least two lenses which have different refractive indices and Abbe numbers, and is located at a distance from the rod lenses; wherein a lens of the achromat is made of ED glass, the Abbe number of which is at least 75.