Hi, I am a graduate student working on a project. I have a question on the operation of DMD in a DLP Projector.
I made a powerpoint slide with a black background and just a white star at the center. I connected the computer to the DLP projector and instead of a mercury vapor lamp I used a laser pointer (used in presentations) as the light source. The beam diameter was only about 40% of the DMD chip area. I also removed the optics that focus the image after the DMD chip. What I noticed was strange. Instead of just one star which I was supposed to get on the output end, I was getting an array of them.
So my question is, does the DMD in normal operation form multiple images in the micro-mirrors and then focuses all through the optics? Or Something else?
Waiting for your reply! :)
Thanks in advance!
Azhar
