Patent · US Expired

Beam positioning device for an ophthalmological instrument

US5342351A · kind A · utility

39Cited by

3References

16Claims

0Family size

Assignee

Carl Zeiss Stiftung · DE

Inventors

Erich Blaha · Oberkochen, DE
Martin Poxleitner · Königsbronn, DE
Gerhard Hanemann · Oberkochen, DE

Key dates

Filing date	Aug 4, 1993
Grant date	Aug 30, 1994
Priority date	—
Expiry date	Aug 4, 2013

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2009/00863
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

For defined positioning of a laser beam in an ophthalmological instrument with a slit projection device and an optical observation unit, a focusing objective is displaced by a displacement device in a plane parallel to the observation beam path of the optical observation unit. The laser beam path and the slit projection beam path are separately deflected coaxially with the observation beam path in the direction of the target plane. Defined positioning of a laser beam in the patient's eye is achieved by means of the displacement device, which includes a displacement element connected to the focusing objective, and an operating element. The displacement device furthermore offers diverse means of adjustment.

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