초록 ▼

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 treat

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.

대표청구항 ▼

A laser photocoagulator including a laser system and a viewing system, characterized in that the laser system includes a first solid state laser diode and at least one further solid state laser diode, said laser diodes operating in the infrared range, said laser system further including means for co

A laser photocoagulator including a laser system and a viewing system, characterized in that the laser system includes a first solid state laser diode and at least one further solid state laser diode, said laser diodes operating in the infrared range, said laser system further including means for combining the infrared light produced by said laser diodes, and wherein said viewing system and said laser system have in common a dichroic beam splitter which, in use, separates infrared light from visible light, said viewing system and said laser system sharing a substantially common light path between said dichroic beam splitter and the eye of a patient, whereby the clinician may view a patient\s eye through the beam splitter substantially without risk of exposure to the infrared light used for treatment, the photocoagulator further including an alignment system incorporating a visible light source, the visible light source comprising a solid state laser diode which provides coherent light having a wavelength in the visible range.