245KiB, 1280x720, Beam.png View SameGoogleiqdbSauceNAO Anonymous Mon 15 Feb 11:21:48 2021 No.12708076 ViewReplyOriginalReport Quoted By: >>12708079 >>12708300 How do I calculate the curve of a reflector and the point where the light source shall be to get a somewhat straight beam for any given size?
