| 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 the beam in first and second different directions, stereo base producing means for obtaining stereoscopic information concerning the surface by impinging the beam onto the surface from two different positions, and reflecting means, wherein a beam from the laser source may be directing along an input path including being modified with the modifying means and split by the beam splitting means, directed onto the first scanning means to scan the beam in the first direction, directed through the second scanning means to scan the beam in the second direction, directed through the stereo base producing means, and then directed off the reflecting means and onto the surface, whereby reflected light from the surface traverses an output path identical to the input path, towards the beam splitting means, and whereby some of the reflected light is directed towards the photodetecting means coupled to the signal processing means and display means to produce an image for viewing with visualizing 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 the surface, including directing a laser beam along an input path including modifying and then splitting the laser beam, focusing the beam, scanning the beam in a first direction, scanning the beam in a second direction, directing the beam through stereo base producing means to provide stereoscopic information by impinging the beam onto the surface from two different positions, and reflecting the beam onto the surface, whereby reflected light from the surface traverses an output path identical to the input path, splitting the 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 visualizing means in real time.
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