Abstract: A bulb assembly for a slit lamp microscope comprises a flash generator able to produce a flash of light, a synchroniser able to detect light from a camera flash, and a controller. The bulb assembly is arranged so that, in use, when the controller receives a signal from the synchroniser indicating light from a camera flash has been detected, the controller causes the flash generator to produce a slave flash of light. The bulb assembly may further comprise a light source and light from the light source may be focussed onto the flash generator so as to produce a virtual image of the light source in the same physical location as the flash generator.
Type:
Application
Filed:
September 21, 2006
Publication date:
August 16, 2007
Applicant:
Litechnica Limited
Inventors:
John Robert Gutridge, Timothy-Ralph Snellgrove
Abstract: A binocular indirect laser ophthalmoscope is provided comprising binocular eyepieces each having an optical axis defining an optical plane, the ophthalmoscope having a central viewing axis lying in the optical plane; and an optical element adapted to position a laser beam into the optical plan substantially on the viewing axis and substantially parallel to the viewing axis.
Type:
Grant
Filed:
July 29, 2002
Date of Patent:
December 14, 2004
Assignee:
Litechnica Limited
Inventors:
John Robert Gutridge, Timothy Ralph Snellgrove