Ads
related to: staples overhead projector lights for living room ceiling colors meaningwalmart.com has been visited by 1M+ users in the past month
shadesoflight.com has been visited by 10K+ users in the past month
build.com has been visited by 100K+ users in the past month
Search results
Results from the WOW.Com Content Network
An overhead projector works on the same principle as a slide projector, in which a focusing lens projects light from an illuminated slide onto a projection screen where a real image is formed. However some differences are necessitated by the much larger size of the transparencies used (generally the size of a printed page), and the requirement ...
A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens, but some newer types of projectors can project the image directly, by using lasers.
Sony makes a screen [6] that appears grey in normal room light, and is intended to reduce the effect of ambient light. [7] This is purported to work by preferentially absorbing ambient light of colors not used by the projector, while preferentially reflecting the colors of red, green and blue light the projector uses. [8]
It works with an overhead projector. The panel consists of a translucent LCD, and a fan to keep it cool. The projection panel sits on the bed of the overhead projector, and acts like a piece of transparency. The panels have a VGA input, and sometimes Composite (RCA) and S-Video input. Later models have remotes, with functions such as 'freeze ...
The Color Light Output specification provides projector buyers the advantage of a standard, objective metric with which to make product comparisons and selections. Projector manufacturers generally provide information about resolution, white light brightness and contrast ratio as descriptors of projector performance.
A document camera can enlarge the small print in books and project a printed page as if it were a traditional transparency by using a zoom feature. Document cameras do not require the lights to be dimmed in the room they are used in, contrary to what overhead projectors require to be visible. [3]
Ads
related to: staples overhead projector lights for living room ceiling colors meaningwalmart.com has been visited by 1M+ users in the past month
shadesoflight.com has been visited by 10K+ users in the past month
build.com has been visited by 100K+ users in the past month