All About Shopping
How does a overhead projector work?
3Jan2008 Filed under: Overhead Projectors Author: admin
Greenman asked:
apparently it needs a concave mirror, condenser lenses, the slide or film, the projection lens, then the screen.
apparently it needs a concave mirror, condenser lenses, the slide or film, the projection lens, then the screen.
thanks a lot
One Response to “How does a overhead projector work?”
Leave a reply
You must be logged in to post a comment.
Welcome to My Shopping Blog.
Browse the website for more info. If you don't find what you're looking for, please use the search function.
lissybeanss
January 3rd, 2008 at 2:07 pm
its not a ‘film’
its called a transparency
and the image reflects off the mirror onto the screen with is usually a white screen or a white wall.
and it needs a lightbulb .