New Color Brightness Metric Solves Projector Color Evaluation Problem
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AMSTERDAM, Netherlands, Jan. 30 /PRNewswire/ -- 3LCD today confirmed its support for the new Color Brightness metric. The Color Brightness metric is being submitted to the ISO for approval as an update to the International Standard for light output measurement. Color Brightness specifies a projector's ability to deliver color. The Color Brightness metric addresses the failure of current projector specifications to measure color performance, allowing purchasers to evaluate color performance at a glance. 3LCD joins a growing list of industry players supporting the new metric. Today all video, DVD, HD, digital camera and computer signals are encoded in an RGB color space. In all of these devices and in the world around us, red, green and blue added together equal white. If this is not the case, a full and balanced range of color cannot be reproduced. Color Brightness measures the brightness of red, green and blue, just like the input signal. If a projector can produce bright red, green and blue that combined equal the brightness of white, true, accurate and balanced color is possible. If Color Brightness does not equal the White Brightness, accurate color reproduction is impossible. Karl Lang, chief color scientist at Lumita said: "the projector product landscape has wide variation in color performance at all price points. To most end-users color performance is unclear and difficult to evaluate until after purchase. Many projectors have significant undocumented defects in color performance, it's impossible for consumers to fairly evaluate a projector purchase based on the existing specification metrics. Given the costs of projectors, and the dizzying array of models, it's high-time for the industry to adopt Color Brightness and to provide end-users with a simple metric that follows existing methodology. The addition of this metric will require no change to existing product qualification procedures." Other industry experts and market specialists agree with the proposal. "This proposal makes a lot of sense, especially given the number of expensive projectors we have tested that can't even accurately reproduce sRGB," said Steve Upton, CEO of Chromix. "Consumers expect a projector to reproduce color at least as well as a cheap display and they don't find out it can't until after the purchase. The methodology of this spec is firmly rooted in existing standards and prevents companies from hiding poor color performance." The new proposal modifies the International Standard IEC 61947-1 to provide purchasers with additional information on a projector's color performance. The existing brightness standard provides consumers and purchasing managers a critical metric often communicated as "lumens" or "ANSI lumens." The updated specification will not affect this current white illuminance measurement. It simply adds another metric that specifically measures color illuminance. Color Brightness is measured using the same industry-standard methodology. The new number is also reported in lumens, providing a familiar and relative number. If both the white illuminance (brightness) and color illuminance (color brightness) are equal, the projector will accurately deliver the proper energy to the primary colors of red, green and blue exactly as they are in the source video signal. Studies are underway around the world to confirm the utility of this new metric. The first such study was presented November 6th, 2007 at the 15th Color Imaging Conference in Albuquerque, NM. "Analysis of the proposed IEC 'Color Illuminance' digital projector specification metric, using CIELAB gamut volume" and is available for download at http://www.lumita.com Further details, comprehensive examples and demonstrations will be presented at key industry events over the next several months. About 3LCD Technology 3LCD is the world's leading projection technology, delivering unbelievably bright and natural color, amazing detail and road-tested reliability. Using an advanced, 3-chip design, 3LCD offers full-time color for brilliant quality images without the possibility of color break-up. 3LCD is based on LCD technology, which is used by leading manufacturers worldwide for the ultimate viewing experience in flat panel and rear projection TVs and projectors. To find out why more users choose 3LCD than all other projection technologies combined and to get the latest list of leading companies offering 3LCD technology in their products, visit the 3LCD website at http://www.3LCD.com SOURCE 3LCD Technology Molly Mulloy, +1-415-369-8105, email@example.com, or Nick Mendoza, +1-310-566-3984, firstname.lastname@example.org, both of Zeno Group, for 3LCD Technology
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