Patent · US Expired

Slit lamp apparatus with peripheral illumination

US5196874A · kind A · utility

1Cited by

3References

5Claims

0Family size

Assignee

Carl Zeiss Stiftung · DE

Inventors

Ortwin Muller · Aalen, DE
Gunter Geiss · Königsbronn, DE
Victor Stopar · Oberkochen, DE

Key dates

Filing date	Feb 14, 1990
Grant date	Mar 23, 1993
Priority date	—
Expiry date	Feb 14, 2010

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B3/135
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A split lamp apparatus includes a peripheral lighting arrangement (3) which can rotate about a vertical axis (5, 6) independently of other parts (1, 2) of the apparatus. In this way, the spot of light from the auxiliary lighting is always located in the focal plane of the slit lamp device (2) and of a stereomicroscope (1). The peripheral lighting arrangement can also be replaced by a laser light source.

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