LCD projectors work a little differently. Shine light through the film and then have that light pass through an imaging lens and you’d display a larger version of that tiny image onto a wall or screen. The old method of film projection was simple: Each frame of the film was a tiny, translucent photograph. Inventor Gene Dolgoff developed the first LCD projector in 1984, and both Epson and Sony continue to employ the technology in 21st century projectors. The technology behind the LCD projector is nearly three decades old in 2012, but it remains one of the top digital projection technologies, alongside Digital Light Processing (DLP) projectors. Whether suffering through a business pitch or a classroom presentation or enjoying an evening of home theater blockbuster thrills, there’s a good chance an LCD (liquid crystal display) projector is responsible for the light show. Other technologies, such as Digital Light Processing (DLP) and liquid crystal on silicon (LCOS) are also becoming more popular in modestly priced video projection. These lamps also have the ability to produce an extremely large amount of light within a small area current projectors average about 2,000 to 15,000 American National Standards Institute (ANSI) lumens. Metal-halide lamps are used because they output an ideal color temperature and a broad spectrum of color. The combination of open and closed pixels can produce a wide range of colors and shades in the projected image.
As polarized light passes through the panels (combination of polarizer, LCD panel and analyzer), individual pixels can be opened to allow light to pass or closed to block the light.
#Lcd projektor leihen series
To display images, LCD (liquid-crystal display) projectors typically send light from a metal-halide lamp through a prism or series of dichroic filters that separates light to three polysilicon panels – one each for the red, green and blue components of the video signal. It is a modern equivalent of the slide projector or overhead projector. An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface.
0 kommentar(er)
