Optical head of an installation for observation and treatment of

Details Optical head of an installation for observation and treatment of Optical head of an installation for observation and treatment of

1983-03-07

1985-02-19

Rosenbaum, C. Fred

Surgery

Truss

Pad

350172, 350438, 219121LU, 219121LS, 219121LQ, 128395, A61B 1736, A61N 300, G02B 2714

Patent

active

044998970

ABSTRACT:
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 reflecting towards the latter a treatment and a marking laser radiation beam forming a visible envelope of the treatment beam. 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 wavelength 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.

REFERENCES:
patent: 2838601 (1958-06-01), Cavanagh
patent: 2960612 (1960-11-01), Koulicovitch
patent: 3704061 (1972-11-01), Travis
patent: 3710798 (1973-01-01), Bredemeier
patent: 4081807 (1978-03-01), Urano et al.
patent: 4289378 (1981-09-01), Remy et al.
patent: 4391519 (1983-07-01), Kuwabara et al.

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