device for treatment of human or animal zellgeweben with laser light

摘要

1,045,868. Laser ophthalmoscopes. INTERNATIONAL RESEARCH DEVELOPMENT CO. Ltd. July 7,1965 [July 17,1964], No.29295/64. Heading G2J. [Also in Division A5] An instrument for treating human or animal tissue (e.g. eye 8) with a laser beam comprises a ruby rod laser 2 illuminated by a flash tube 3, the laser beam being focused on the tissue by an optical system comprising mirrors 9, 10 and 11 and lenses 5, 6 and optionally 12, and an illuminating system comprising a lamp 14 lenses 15, 16 and 17, a graticule 21 and an apertured mirror 18, the area threated being viewed by the operator 20 through an aperture 19 in the housing and the aperture 18a in the mirror 18, aperture 19 and lens 12 (if present) being arranged so that reflections of the laser beam do not pass back through aperture 19 damaging operator's eye.