STEREO SCANNING LASER OPHTHALMOSCOPE

摘要

The present invention provides an apparatus for producing an image of a surface, including a laser source for producing a beam of light, beam modifying means for modifying the properties of the beam, beam splitting means for splitting the beam, focusing means for focusing the beam, first and second scanning means for scanning said beam in first and second different directions, stereo base producing means for obtaining stereoscopic information concerning the surface by impinging said beam onto said surface from two different positions, and reflecting means, wherein a beam from said laser source may be directing along an input path including being modified with said modifing means and split by said beam splitting means, directed onto said first scanning means to scan said beam in said first direction, directed through said second scanning means to scan said beam in said second direction, directed through said stereo base producing means, and then directed off said reflecting means and onto said surface, whereby reflected light from said surface traverses an output path identical to the input path, towards said beam splitting means, and whereby some of the reflected light is directed towards said photodetecting means coupled to said signal processing means and display means to produce an image for viewing with visualising means in real time. The present invention also provides a method for scanning a surface with a laser beam to thereby produce an image of said surface, including directing a laser beam along an input path including 1) modifying and then splitting said laser beam, 2) focusing said beam, 3) scanning said beam in a first direction, 4) scanning said beam in a second direction, 5) directing said beam through stereo base producing means to provide stereoscopic information by impinging said beam onto said surface from two different positions, and 6) reflecting said beam onto said surface, whereby refleted light from said surface traverses an output path identical to said input path, splitting said beam and directing a portion of the split beam towards photodetecting means coupled to signal processing means and display means, whereby a resultant image may be viewed with visualising means in real time.