OPTICAL SYSTEM OF A STEREO VIDEO ENDOSCOPE WITH LATERAL VIEWING DIRECTION AND STEREO VIDEO ENDOSCOPE WITH LATERAL VIEWING DIRECTION

摘要

An optical system of a stereo video endoscope with lateral viewing direction. The optical system including: a sideways looking distal optical assembly; and a proximal optical assembly. Where the distal optical assembly includes, successively in a direction of light incidence on a common optical axis: an entrance lens configured as a raised negative meniscus, an optical deflection unit; and an exit lens configured as a hollow positive meniscus, Where the distal optical assembly has, at least in sections, a right and a left lens system channel of identical type and arranged parallel to one another, each of the right and left lens system channel having: a dedicated optical axis, and at least one first lens and an achromatic lens group in the direction of light incidence.

主权项

1. An optical system of a stereo video endoscope with lateral viewing direction, the optical system comprising:
a sideways looking distal optical assembly; and a proximal optical assembly; wherein the distal optical assembly comprises, successively in a direction of light incidence on a common optical axis:
an entrance lens configured as a raised negative meniscus,an optical deflection unit; andan exit lens configured as a hollow positive meniscus, wherein the distal optical assembly has, at least in sections, a right and a left lens system channel of identical type and arranged parallel to one another, each of the right and left lens system channel having: a dedicated optical axis, and at least one first lens and an achromatic lens group in the direction of light incidence.