Predictions for 2013 4K projectors - Page 22

I totally agree. I do wonder how difficult it will be to get to the substantially wider color space, as defined for Ultra-HD by ITU rec. BT.2020, when using conventional UHP lamps and how much the projector's lumens output would be impacted when operating in this mode (as compared to rec. 709 HD color space - see below). Do you know what the color points are for widest available color space setting on your VW1000es?


Edited by Ron Jones - 5/19/13 at 7:50am

They could make a Remote Phosphor RGB Laser projector in similar way that LED projectors are made.
3x Blue Laser (maybe in a separate box) feeding laser via fiberoptics to the same type of light box used for LED projectors where the Red+Green+Blue Phosphorous would be.
Advantages;
LED projectors have big cooling requirements (water cooling) to keep the LEDs within a certain temperature range to be able display correct colors.
By substituting remote Laser for the LED some of the heat problems would be removed. The phosphorous could be mounted in a heatsink at the light box to keep it cool.
In case of deteriorating Phosphorus, a solid phosphorus plate could be easily swappable.
The Laser could be stronger than what is possible today with Phosphorous coated Blue LED when the direct heat problem of Phosphorus is removed.

Here are some pictures from a One Chip DLP LED lightbox, just so we can see what it looks like.



Will not have all the advantages of a true Laser Lightengine.

Christie has been showing their Cinema Laser DLP projector several times lately. But it still has Speckle problems. They use several methods to reduce Speckle, one which is to vibrate the screen, which isn't really a usable solution, particularly for HT use.
Maybe they should try to vibrate the DLP DMD in stead using the type of motors used in lenses and also in cameras to vibrate the sensor.

Ron. I don't know how wide a space can be obtained by the 1000ES. I know that rec 709 and the DCI color space can be obtained with DCI putting out less light because of the filtering involved. In theory, wider spaces than rec 709 or DCI can always be obtained by filtering but usually at too big a hit on light.


I doubt we will ever see our theoretically ideal three chip or single chip RGB laser lit projector. Too expensive, unsolved technical issues like speckel, regulatory issues and a consumer market that just doesn't care. Some care but most don't.
Edited by mark haflich - 5/19/13 at 10:42am

If you mean the Laser driven Remote Phosphorus i can agree. It was just a musing over the possibilities as an alternative to the single chip LED projectors.

But if you mean single chip DLP RGB Laser projectors I can guaranty that if Laser will take the place of Lamps for projectors in the future because they have solved all the Speckle problems, there will be One Chip DLP Laser projectors. Just like the first LED projectors where one chip DLP.

Diode RGB laser will come down in price and it is much simpler to make a one chip DLP Laser projector than a three chip projector.
A one chip DLP RGB Laser projector is simpler to make than a LED RGB projector.
The unresolved problems for laser projectors are the same regardless of number of chips.