Patent ID: 6869428

Claim:
An ophthalmologic photocoagulator comprising: a treatment laser oscillator for oscillating a treatment laser beam for conducting treatment by photocoagulation on a diseased part of an eye to be examined; a sighting laser oscillator for oscillating a sighting laser beam for conducting sighting on the diseased part of the eye to be examined which is to be irradiated with the treatment laser beam; a combining means for combining an optical path of the treatment laser beam with an optical path of the sighting laser beam by polarization coupling and the treatment laser oscillator and the sighting laser oscillator oscillate laser beams having similar colors to each other; a first light receiving means for receiving a part of the treatment laser beam to monitor whether or not the treatment laser oscillator oscillates at a first predetermined output; and a second light receiving means for receiving a part of the sighting laser beam to monitor whether or not the sighting laser oscillator oscillates at a second predetermined output.