Patent · US Expired

Endoscopic attachment for a stereoscopic viewing system

US5612816A · kind A · utility

24Cited by

12References

31Claims

0Family size

Assignee

Carl Zeiss Stiftung · DE

Inventors

Fritz Strahle · Heubach, DE
Ulrich Sander · Rebstein, CH
Uwe Vry · Aalen, DE

Key dates

Filing date	Aug 3, 1995
Grant date	Mar 18, 1997
Priority date	—
Expiry date	Aug 3, 2015

Classification

Technology area (CPC G)Physics
CPC primaryG02B23/2476
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention is directed to a stereoscopic endoscope wherein an intermediate image is generated in a rod-shaped endoscope attachment. The intermediate image is imaged into the focal plane of an objective. The objective can be the main objective of a surgical microscope with the objective having a long focal length or the main objective of a stereoscopic recording system. The main objective and an in-coupling optic conjointly define an inverted telescope.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.