How does a slide projector work?
A bright light lights the slide (a prepared positive cut from the original film). The light travels through a lens to focus it and on to a screen. There are many mechanisms to change slides, from manual insertion, to rotary and linear slide trays.
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There are two types of projectors: The two types of projectors are LCD and DLP. LCD: LCD stands for Liquid Crystal Display. The way this places an image on a screen is fa…scinating and not nearly as complex as you might imagine. A bulb is set up to shine a fairly powerful light through a prism. The prism splits the light into its component colors and these are sent through small LCD screens. The screens themselves are sent signals to allow just so much of the light through at specific pixel locations. The light is then beamed through a lens onto a screen where the images can be seen by the human eye. DLP: DLP, or Digital Light Processing is a bit more complex. This time the light is shined through a spinning color wheel onto a chip that is mounted with hundreds of thousands of tiny mirrors. The mirrors are turned off or on by electronic impulses according to the need for the color at that moment. Even though only one color is shown at a time, one color follows another so quickly that the primary colors seem to blend into the appropriate color. The image appears to be constantly lit, when in fact small parts of it are constantly flickering. This technology was developed by Texas Instruments and is based on an older technology that was used for color television in the 1950s. More info go to http://projectors.indepthinfo.com/how-projectors-work.shtml
A video projector takes a video and reflects it off a mirror. Thevideo is played on a screen that is a solid color preferably white.
The slide projector was created by Louis Misurace. He sold hisinvention to the Kodak Company. By the 1960s, millions of homes hadthem.
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buy one and find out you self
A projector that projects images from 35mm slides.
A torch, some clingfilm and a piece of cardboard - something like a white or pale-coloured wall, a fridge or a white sheet can be used as a screen. Someone with a bit more tim…e might bother to create a focus using a pair of glasses or a magnifying glass, and could build a simple structure to hold the whole lot in place.
it follows the law of refraction.
A powerful beam of light through the transparent slide image is focused by a convex lens to produce an image on a screen .
Slide projectors are considered "old technology", but if you have slides and a projector, showing them would emphasize that you and your dad predate PowerPoint. And that's not… a bad thing.
Do you mean connect it to a projector? If so, you need a projector, your computer and a special screen cord. Connect the cord to your computer and projector and is should work…!
There are a number of reputable websites which allow individuals to buy and sell Kodak slide projectors. Amazon and eBay are just two examples of well known sites that provide… such a service.
Vintage slide projectors can most likely be found at a local Pawn Shop. If one cannot find a Vintage slide projector as their local Pawn Shop, good places would be to look on …Ebay, or Craigslist. People can be offering these projectors.
A camera, a photocopier, and a slide projector all use lenses to perform their functions.