Epson Mini-Projector Using LED Light Source - IFA 2005 Report - LetsGoDigital Camera Magazine
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Epson Mini-Projector Using LED Light Source
IFA 2005 - Digital Imaging & Digital Music - Posted by Dennis Hissink.
Digital Imaging & Digital Music
Epson today announced that it had succeeded in developing a prototype postcard-sized mini-projector using an LED light source. With a footprint of just 13.8 by 10.3 centimeters (just smaller than a sheet of A6 paper) and a slender profile, the 500-gram prototype can fit easily into the palm of your hand. The mini-projector can be viewed at first hand by visitors to the IFA 2005 trade show to be held in Berlin, Germany, from September 2 to 7. Although the company has no immediate plans to market the mini-projector, company representatives believes that the prototype demonstrates just how compact mobile 3LCD projectors could one day become. "Projector using 3LCD technology already have advantages in terms of bright, natural images that are easy on the eyes," said Koichi Kubota, general manager of projector marketing at Epson. "This development is yet another example showing the potential of Epson projectors and Epson projector technology." With 11.3% of the share for front projectors worldwide in fiscal 2004, Epson's popular range of projectors for education, business and home entertainment make the company the global market leader.
Epson Mini-Projector Using LED Light Source Mini-Projector Using LED Light Source
In addition to allowing ever more compact design, LED light sources provide several advantages over conventional lamps including immediate projection readiness, a long running time, and swift switch-off. The use of an LED light source in a projector is a first for 3LCD. The current development is the latest in a long series of technical breakthroughs for Epson projectors. One of the very first companies to enter the projector market, Epson has stayed ahead of its competition by continually providing features and technologies that offer users real benefits. Recent developments include Crystal Clear Fine (C2 Fine) technology that dramatically enhances aperture ratios, definition, and image quality to enable the development of 3LCD projection TVs offering an even more realistic viewing experience. The company will continue to place top priority on developing market leading projection projects for a wide variety of applications and locations.
What is a 3LCD projector? - Liquid Crystal Display projectors pass light through LCD panels about the size of a postage stamp; the LCD panel is made up of miniscule panels ('pixels') that can be clear, opaque or some semi-clear point in between. These pixels take the form of the image to be created, and the light passes through the clear or partly-clear areas in the same way that light passes through the clear or gray parts of a negative. The projector's lens, in turn, expands the image and directs the light onto the screen or viewing surface. This enlarges all the tiny details and creates clear, detailed and beautiful images with ultra-smooth movement.
Epson's 3-panel LCD System - A projector with the Epson-designed 3-panel Liquid Crystal Display ('3LCD') system uses dichroic mirrors to break the white light from the lamp into red, green and blue light. Each of the three colors of light is then passed through its own LCD panel and then recombined by a prism before being projected onto the screen. The result is smooth-moving images with rich, full color, since all three basic colors are included in each pixel of the projected image at all times.
The Technology Behind Other Projectors - After the 3LCD projector system, the second most common type of business projector is the 1-chip DLP projector system. These 1-chip DLP projectors create pulses of colored light by shining lamplight through red, green, blue and white parts of a rotating wheel. These rapid pulses - thousands per second - are then reflected by a DMD device. The DMD device has one tiny mirror for each pixel in the image. It is on a hinge, and flickers rapidly. The series of rapid color bursts are then projected on the screen and seen in rapid succession. The viewer's brain can't pick out the individual flickers, but instead mixes the basic colors that appear one after the other in each pixel to come up with the final color the viewer sees.
Bright Images - Enjoy beautiful color in clear, defined images that are easy on the eyes, even in a bright room. In internal testing we found that Epson 3LCD projectors consistently yielded brighter red, green and blue over top selling 1-chip DLP projectors using similar lumens ratings. 3LCD projectors can project bright, vivid images with a low output lamp that uses less electricity. And that means less heat and less cost to run. That's technology that is also friendly to the environment.
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