BANGALORE: 3LCD supporting companies have introduced the concept of an additional criterion for assessing projector quality based on Color Luminance. This new way to measure a projector's performance in color indicates the brightness of the primary colours projected onto the screen.

With Color Luminance, projector consumers would have more information available about the quality of their colour images when determining their choice of projector.

To measure Color Luminance, the lumens of three primary colours (red, green and blue) are measured in nine fields, three of each colour. The lumen measurements are added up and then averaged to determine the Color Luminance rating, informs an official release.

This new measurement supplements information already available to users about projector performance, including specifications that measure in black and white, such as contrast and ANSI Brightness. The same colour image projected from two projectors can appear different, even if the ANSI lumen ratings are the same, because the ANSI ratings are based on a white image. Since projection is typically in colour, this new colour measurement information is helpful to end-users, the release adds.

Along with the most recent 3LCD applications, details of Color Luminance will be presented in the 3LCD booth at InfoComm06, Orange County Convention Center, Orlando, U.S. from 7 to 9 June.