A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
327/1.2
A61F 9/00 (2006.01) A61F 9/008 (2006.01) A61B 18/20 (2006.01)
Patent
CA 1196695
ABSTRACT OF THE DISCLOSURE The optical head of an installation for observation and treatment by a laser beam of an eye comprises a mirror disposed between an observing microscope and a focusing lens for reflect- ing towards the latter a treatment and a marking laser radiation beam forming a visible envelope of the treatment beams. That mirror has an outer portion intersecting the marking beam only and an inner portion intersecting the treatment beam only. That inner portion has a reflection coefficient which is maximum for the wavelength of the treatment beam and minimum for the wave- length of the marking beam, so that the latter only is allowed to reach the observing microscope after reflection on the zone of the eye to be treated.
423348
Lasag A.g.
Marks & Clerk
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