Roger Appledorn invented the overhead projector in the early 1960's as part of his daily job in the thermal fax department. ...
http://www.ehow.com/about_4727912_overhead-projector-tr...
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A man named Jenkins, not sure of the first name, made various technical improvements in Movie Projectors in the twenties. He was also an aircraft pilot of the experimental type- light seaplanes, as I recall, and wa ssomething of a TV pionee...
http://wiki.answers.com/Q/Who_invented_the_overhead_pro...
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The overhead projector was invented in the 1960's.
http://wiki.answers.com/Q/When_was_overhead_projector_i...
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Do you know who invented the overhead projector, and who can we thank for making it easier to give presentations? ... Who invented the overhead projector? Although the device appears in nearly every classroom and conference center, few people know much about it. Just as most technological advances capitalize on...
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www.life123.com/technology/home-electronics/projectors/...
www.life123.com/technology/home-electronics/projectors/who-invented-the-overhead-projector.shtml
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Overhead projector - Wikipedia, the free encyclopedia
An overhead projector is a variant of slide projector that is used to display images to an audience. An overhead projector typically consists of a large box containing a very bright lamp and a fan t...
en.wikipedia.org/wiki/Overhead_projector
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The lives of famous inventors and the stories behind their inventions. ... > Inventor Biography Sites ... Have a New Invention?
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www.inventors.about.com/cs/kstartinventors/
www.inventors.about.com/cs/kstartinventors/
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Who invented the overhead projector and where to find an overhead projector ... Then a mirror inside the box redirects the light and image to overhead projector screens for the entire class to see. Suaing Chong was a man from China who invented the overhead projector. Two different types of overhead projectors are still...
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www.photographysmart.com/multimedia/overhead-projectors...
www.photographysmart.com/multimedia/overhead-projectors.html
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Therefore overhead projectors provide an easy access to a successful presentation. Introduction; Who invented the overhead projector? The first overhead projector was invented by Suaing Chong from China and was used for the police identification work.
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www.lensezoom.com/overhead-projectors.html
www.lensezoom.com/overhead-projectors.html
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Did you know the overhead projector is one of the few technology teaching aids that was actually invented for educational use and not adapted from an instrument intended for entertainment? Why is it not used more often in our clasrooms?
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www.teachingonline.org/technology-index.html
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