Patent · US Expired

Binocular barrel with adjustable interpupillary distance and target marker support

US4082418A · kind A · utility

3Cited by

2References

6Claims

0Family size

Assignee

Carl Zeiss Stiftung · DE

Inventors

Willi Keydell
Herbert Binder · Hagebök, DE

Key dates

Filing date	Jul 19, 1976
Grant date	Apr 4, 1978
Priority date	—
Expiry date	Jul 19, 1996

Classification

Technology area (CPC G)Physics
CPC primaryG02B7/12
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention contemplates a binocular barrel system as for use in a microscope wherein an oriented target line at the focal plane of the eyepiece is kept at consistently the same orientation with respect to the viewed object, in spite of the fact that the eyepiece housings are swivel-mounted to the barrel for accommodation to the interpupillary distance of the observer. A parallelogram system so coordinates rotation of the target-line support at the eyepiece, with rotational displacement of the eyepiece about the barrel, that the correct orientation is seen by any and all observers, regardless of individual differences in interpupillary distance.

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