Fine-tuning projector short focus cantilever bracket, specially designed for all kinds of laser projector.  Laser projectors use laser beams to transmit images.  The optical components of laser projector mainly consist of red, green and blue tri-color light valve, combined beam X prism, projection lens and drive light valve.  With this matching laser projector bracket is the use of three knobs horizontal, vertical, horizontal three direction adjustment, so that the laser projector to adjust the focal length to the curtain more convenient, complete the whole laser focus process.