I am interested in using high-powered laser pointers to simulate a similar experience as in the application linked here: The Laser Image Projector (2007-2008) - a set on Flickr
However, the apparatus is rather immobile and bulky. I am wondering if there is a focusable green laser that exists that could have a rapidly expanding spotlight beam. if not, are there cheap lenses that can accomplish the same effect?
However, the apparatus is rather immobile and bulky. I am wondering if there is a focusable green laser that exists that could have a rapidly expanding spotlight beam. if not, are there cheap lenses that can accomplish the same effect?