Originally Posted by mark haflich
Cool. Hi. I don't think Sony is pretending this is a make believe laser projector. They have been very forth coming about what it is in their technical materials. It is designed to fulfill the needs of a let's call it, a commercial projector where low maintenance, read long life illumination source, and lots of lumens are required.
Sony call the VPL-FHZ55 a True Laser projector in all their promotion, even if they have admitted it is a hybrid laser phosphorus, where the phosphorus is what creates the light.
What will then call a really true Laser projector where they use RGB lasers to create the three primaries (Kodak/Imax), or combined for white light (Christie & Barco) where the light from the Laser is hitting the LCD Panels/DMD directly?
That is what I want to point out and call it Sony's make.believe.
This is the construction design for the Sony VPL-FHZ55. No laser is hitting the LCDs and only blue laser to excite the phosphorous wheel.
Very similar to some other laser/LED hydrides where they use a Red LED for Red and blue laser for blue and same phosphorus wheel for Green.
I was quite disappointed when I recently learnt that Christie Laser projector which they have demoed, is using RGB laser for creating white light and not RGB for creating each primary colors.
I only guess that Barco does the same.
Probably to make it easier to retrofit Series-2 projectors with Laser light engine.
Wonder if they get the advantage of the Laser Ètendue in this construction?
As far as I remember, the Kodak projector use RGB for each of the primaries.
So to have a true RGB laser projector one has to make it from scratch.
How the Red Laser projector is constructed we don't know. Is it true RGB or white light?
To be able to do the claimed 4K~3D for each eye, I will guess it has to be dual head when they use Lcos.
I just hope this delay, among others because they had to move engineering resources to the development of the Dragon sensor, make them rethink the use of Lcos and move to DLP (wishful thinking, I know
But when they started the work on the Redray projector they only had been using a Sony SXRD projector at Red studios, but now when they have had a Barco 4K projector in-house for a long time, how can they be satisfied with designing a Lcos projector.
Despite what someone on the Red forum says. for high lumens true laser projectors are concerned there are present regulatory barriers. the FDA has not signed off on high powered laser projectors. They have only signed off to the Kodak laser and have stated they will not issue another exemption but will require industry and health and safety community consensus and completion of an informal rulemaking. Informal means legally under the APA not on the record or a trial like proceeding. It means a notice and comment rulemaking. Low powered class two lasers could come to market but I think that would have to be not a green laser but someother other type such as a spinning green phosphor wheel such as Panasonic reportedly has.
Yes, I was the first to inform about this here at AVS. If anybody at Reduser says something different it is because they don't know about this. The projector manufacturers hasn't exactly been forthcoming in giving the FDA rules as a reason for why they don't launch their Laser projectors.
It is also important to make a distinction between the approval Kodak obtained from the FDA, which happened quite some time before they licensed their Laser projector design to Imax.
It is easy for a company like Imax which doesn't have very many theatres to confirm to the FDA rule for Lasers, in the same way a lot of museums do for their laser driven planetariums and concert tours and arenas does it, even if they use lasers that can do real damage.
It is quite impossible to sell Laser projectors that will end up in any cinema, post projection facility and peoples home theatres worldwide without braking all the outdated laws and risk heavy fines.
That would become a administrative nightmare.
That's why LIPA
is working on a obtaining technical data from projector manufacturers that will make Laser projectors and try to get a unified agreement they can get FDA to agree to.