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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 .
1902 – Arthur Korn devises practical telephotography technology (reduction of photographic images to signals that can be transmitted by wire to other locations).Wire-Photos are in wide use in Europe by 1910, and transmitted to other continents by 1922. 1907 – The Autochrome plate is introduced. It becomes the first commercially successful ...
Vitascope was an early film projector first demonstrated in 1895 by Charles Francis Jenkins and Thomas Armat. They had made modifications to Jenkins' patented Phantoscope, which cast images via film and electric light onto a wall or screen. The Vitascope is a large electrically-powered projector that uses light to cast images.
While the DLP imaging device was invented by Texas Instruments, the first DLP-based projector was introduced by Digital Projection Ltd in 1997. Digital Projection and Texas Instruments were both awarded Emmy Awards in 1998 for the DLP projector technology. DLP is used in a variety of display applications from traditional static displays to ...
Many manufactured slides were produced on strips of glass with several pictures on them and rimmed with a strip of glued paper. [9] The first photographic lantern slides, called hyalotypes, were invented by the German-born brothers Ernst Wilhelm (William) and Friedrich (Frederick) Langenheim in 1848 in Philadelphia and patented in 1850. [9] [10 ...
One wide screen development during the 1950s used non-anamorphic projection but used three side-by-side synchronized projectors. Called Cinerama, the images were projected onto an extremely wide, curved screen. Some seams were said to be visible between the images but the almost complete filling of the visual field made up for this.
Despite some unflattering images, however, photography was establishing a new standard for visual representation. The portrait's most treasured quality was that it was an exactly corresponding record of what had existed in front of the lens. [2] In addition to the private aspect of portraiture, there was a public one.
Over 400 patents were issued to Jenkins, many for his inventions related to motion pictures and television . Jenkins was born in Dayton, Ohio , grew up near Richmond, Indiana , where he went to school and went to Washington, D.C. in 1890, where he worked as a stenographer .