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We replace the mirror of a biaxial scanner, (Kuntman's Scanner: http://laserpointerforums.com/f47/homemade-scanning-laser-color-projector-tv-32628.html) with a detector and laser. Laser emits short pulses. Detector receives reflected light. Simple calculation gives the distance of the object...

NEW FIGURE FOR TUNING THE FAST MIRROR. Figures for the fast mirror and for high speed analog modulation of DPSS green laser. In this project, by means of two mirrors (which can be tilted about two perpendicular axis) we deflect the laser beam to scan a rectangular screen and modulate the...