Sorry if this is a repeat (I searched and didn't see anything) and this may belong in the >$20k forum, but I'm wondering if anybody has any information about this DLP:
http://www.zeiss.de/c12567b00038cd75...257480005213b4
I'm wondering whether they are doing something that allows the black to be extremely dark even with some pinpoints for stars being very bright, or whether they are doing something that dims the whole screen and so lowers the maximum white point as it lowers the absolute black level. I think a local dimming system could work well for their application if it had enough zones (wouldn't need 1:1 pixel mapping), but I have no idea what they are doing. Given that they talk about edge blending it would seem that they need to do something beyond just pulling the native CR range for the whole image down to really do this right.
I also wonder if we'll see whatever they are doing in home theater models.
--Darin
http://www.zeiss.de/c12567b00038cd75...257480005213b4
Quote:
powerdome®VELVET from Carl Zeiss is the world's first and only video projection system with an absolutely black backdrop based on the DLP® technology of Texas Instruments. A Carl Zeiss in-house design, VELVET fascinates not only by its measured contrast ratio of 2,500,000 : 1 - a tremendous leap compared to other projectors offering up to 30,000 :1 -, but also by its expanded color spectrum thanks to the latest BrilliantColor technology of Texas Instruments. In the projected image, very bright and extremely dark areas are excellently resolved at the same time.
...
The leap in contrast to more than a million to one has been made possible by an innovative optical design that excludes stray light and, thus, a gray background from the start.
...
The new projectors will become available at the beginning of 2009.
I'm wondering whether they are doing something that allows the black to be extremely dark even with some pinpoints for stars being very bright, or whether they are doing something that dims the whole screen and so lowers the maximum white point as it lowers the absolute black level. I think a local dimming system could work well for their application if it had enough zones (wouldn't need 1:1 pixel mapping), but I have no idea what they are doing. Given that they talk about edge blending it would seem that they need to do something beyond just pulling the native CR range for the whole image down to really do this right.
I also wonder if we'll see whatever they are doing in home theater models.
--Darin