Photocoagulation apparatus

Details Photocoagulation apparatus Photocoagulation apparatus

1988-05-20

1990-04-17

Dzierzynski, P. M.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

606 40, 606 4, A61B 310

Patent

active

049174860

ABSTRACT:
The invention provides a photocoagulator using an infrared laser diode source (70). A dichroic beam splitter (68) is used to combine the optical path of the laser system with the viewing system. Such an arrangement affords the clinician an uninterupted, uncolor view of the patient's eye during treatment, without any risk of damage to the clinician's eye. There is also provided an alignment system using a visible laser diode (80). The alignment system may include a number of mutually non parallel beams which pass through different portions of the pupil and provide information on aim, focus and vignetting.

REFERENCES:
patent: 3096767 (1963-07-01), Gresser et al.
patent: 3512868 (1970-05-01), Gorkiewicz
patent: 3551029 (1970-12-01), Kirchhoff
patent: 3703176 (1972-11-01), Vassiliadis et al.
patent: 4580559 (1986-04-01), L'Esperance
R. Brancato SPIE vol. ECOOSA '86/365.
C. A. Puliafito Arch Ophthalmal-vol. 105, Mar. '87, "Laser & Applications" Aug. '87/38.

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