Patent · US Expired

Rod lens system for rigid endoscopes

US6804052B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

Karl Storz GmbH & Co. KG · DE

Inventor

Fang Lei · Durchhausen, DE

Key dates

Filing date	Sep 8, 2003
Grant date	Oct 12, 2004
Priority date	—
Expiry date	Sep 8, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG02B23/2446
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A linear lens system for rigid endoscopes for the conversion of a distal intermediate image into a proximal intermediate image, is characterized by a first non-symmetrically arranged sequence of two linear lenses, a subsequent odd sequence of similar, non-cemented, symmetrically biconvex linear lenses, and a final sequence of two linear lenses, arranged as a mirror image to the first sequence.

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