The Importance of Color Light Output

In this very geeky episode, color scientist Karl Lang and 3LCD product manager Tim Anderson explain the difference between measuring white light output and color light output, which should yield the same result but sometimes don't, especially in single-chip DLP projectors, whose color-filter wheels often include white, cyan, magenta, and/or yellow segments to boost the white light output. Unfortunately, these extra segments also sacrifice color accuracy, which is clearly illustrated here.

Run Time: 1:05:08

Karl Lang is the founder and chief scientist of Lumita, Inc., a color-science research, consulting, and product-development firm started in 1995. He has been developing products for color display, calibration, and display measurement for over 20 years and was the primary architect of many color systems and standards used throughout science and industry, including ThunderColor, the Radius PressView Color Display System, the Sony Artisan Color Reference Display, ColorMatch RGB, and many color-processing pipelines running behind the scenes in popular software and consumer electronics.

Karl is a researcher and author published in the Journal of Imaging Science and Technology, and has been awarded patents in color-process control, color measurement, and color-display technology. Recently, he has been working to improve the standards for projection metrology in association with the Society for Imaging Science and Technology and The International Committee for Display Measurement.

As the global spokesperson for 3LCD technology, Tim Anderson works closely with chip manufacturers and projector makers to educate the industry and public on the benefits of 3LCD technology. Combining detailed technical knowledge of the various projection technologies with deep market insights, Tim often speaks to groups about display-market trends and advancements in the projection market. He has been in the display industry for more than 10 years, with previous experience at IBM and InFocus.