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Timothy Jones writes "These are pictures of my second successful laser projector, built for a party a couple years ago. Two G124 scanners were used with a 100 mW DPSS laser and electronic blanking, and a home-built analog pattern generator. For most of the shots, the pattern was generated by driving two bandpass filters with a square wave (one for x and the other for y) and then feeding the result into an arbitrary rotation circuit running at audio frequencies. The projection was made onto a scrim suspended inside a 10 meter geodesic dome made out of aluminum electrical conduit and black plastic, with blue LED's at each vertex. Photos by Timothy Jones - timothyj@its.caltech.edu

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