projection

how film projectors work: http://www.movingimage.us/sprockets/filmproj.swf


LCD Projector:
Basically projectors work like this:


reflected light:

diffuse light:

the camera obscura:

Ted Victoria “Light Bulb Projections” 1974

more ted victoria: http://www.tedvictoria.com/videos.html

Jim Sanborn - The Cyrillic Projector (aka "Encoded Cylinder" and "The Code Room") Bronze, light, 5' diam 1990-1997:




Instructables - DIY projector building:
http://www.instructables.com/id/DIY-iPod-Video-Projector---Requires-no-Power-or-Di/