The company that developed the projector is Cremotech a Korean (search Cremotech Korea) startup. UO is just an SK brand name that was put on the Cremotech design.
Once again, it was a marketing person somewhere down the way that made a marketing claim without any reality tied to it. With all your searching, why have you not reference a legitimate paper proving that "laser lumens" are somehow brighter.
You base your contention/lie on your own made up theory on how things work between UO, SK and Syndiant. You are lying that "UO is a wholly-owned subdid" of SK. They are a small startup company that is selling their product to SK. Their development budget was likely a small fraction of that of Sony or even Microvision.
Second you are obviously ignorant about contrast ratios and their spec's and their meaning in the real world beyond marketing hype. I suggest you read Projector Central's 2008 article on "Why are contrast specs worthless".
In the real world measuring ANSI (not the liars poker on-off contrast) contrast even the best movie theaters are below 400:1. You need to measure real contrast in a real environment with ambient light if you really want to get at the truth.
Lasers have many advantage for LCOS including improving contrast. 800:1 is more than enough in the real world for a 30 to 60 lumen projector. BTW, while there are issues with the UO projector, but its resolution about 2X in each direction of the Celluon projector. Maybe I will get around to publishing some pictures.
Geo, get your lies straight.
First it was UO marketing that was making the claim, not Syndiant.
Second, show us any refereed or similar paper showing that "laser lumens" are anything more than marketing fluff/exaggeration. If this were true, you should have lots of references from independent sources.
A visible laser with more than 5mW is going to be class 3R or above. The way Sony/Celluon get the class rating down to 3R is because they are scanning it at a rapid rate.
Cooling is a different issue.
A patent does not have to be practical or even work for that matter. The propose method would seem to be impractical at best.
This patent assumes the laser only switches modes a field at a time. On top of this being difficult to cause/control, it means that you have to scan at a very high rate to avoid flicker (much higher today's scanning lasers scan).
The common way to reduce flicker with multimode lasers and panel microdisplays is to stimulate the laser with a moderately high frequency AC component (1KHz to 20KHz) which will cause it to hop at a rapid rate. Because the laser light is illuminating the whole panel over a period of time the various hopping intensities/patterns average out.
BTW, Roithner is not a manufacturer but a reseller/distributor and it looks like they change the product numbers. From the rough spec's it looks like some or all of their green lasers are made by Nichia.
You might want to note that they show a 120mW single mode that could be used in laser scanning. Nichia's web site only goes to 80mW, but it could be that their web site is out of date. I would imagine right now even in volume these are a bit expensive. You also will probably need good/large cooling to get this level of output.
In multi-mode (for panel projectors) Nichia (and Roither) has green lasers going up to 1000mW.
The NLD52100SG is a "muli-mode" laser and laser scanning requires single-mode lasers. It is easier to go to higher powers with multi-mode lasers which can be used with panel based projectors where multi-mode helps reduce speckle. With laser scanning displays a multi-mode laser would cause very noisy image as the mode hoping beats against the scanning process and therefore cannot be used.
Quoting from the spec: "NLD52100SG is a green multi-mode laser diode,"
They have done the math and it is Class 3R per Sony's own information. It would be Class 3B (dangerous eye hazard) or worse if the laser was not moving.
In terms of retinal heating/damage, the issue is how much energy per unit time at a point on the retina. BECAUSE the laser beam is much small than the eye's iris, it is not how much total light enters the eye that drives the safety issue but the energy in the beam and the beams linear speed. If you would read and comprehend the papers on the subject then you should know this. As you move away from the source the speed of the scan across the eye changes linearly, not square law and up to a very long distance the beam is smaller than the size of the iris opening of the eye.
In the case of panels (DLP LCOS) illuminated by lasers, the light is spread uniformly over the panel and thus the light/energy density at any point on the retina is roughly the same. Therefore the energy per point on the retina per unit of time does decrease by the square with distance.
I'm just trying to be factual.
And if you go to the paper he references it says that LBS is class 2 up to 23.3 lumens and therefore would be class 3R or above at 32 lumens. Which comes back to the same Class 3R as Celluon and Sony give their devices.
What, and What point are your trying to make? DLP is not perfect but it is used in most of the big screen digital projectors. A quick search shows an NEC DLP projector going to 33,0000 lumens (I'm sure it has serious cooling).
When you hear of laser theater projectors, they are most likely DLP based.
So now we have an rank amateur voicing his ignorance.
First, if proximity sensors solve the problem, why do you think Sony and Microvision would be so dumb to date to implement it? What, you think your are smarter than their engineers? Proximity sensing is well known and understood for decades. It only helps in some cases and will only improve the situation slightly which is why it has not been done. They do have detection for the mirror not scanning and shut down the lasers or it would be a Class 3B (dangerous even for short exposure) device.
Secondly, with panel base projectors the issue does get better by the square of the distance, but when considering the retina heating danger with laser scanning it at best goes down linearly with distance. So you are wrong on this point too.
But this board is largely a fact free zone for those willing to be deceived and desperate to see the stock go up, so your fiction will probably play better than the truth.
Nope, they are color roll bars from field sequential color caught by the camera scanning. If you start and stop the video a few times you can see them clearly. So the projectors shown are all field sequential LCOS.
If it were LBS, you would see a black (not colored) roll bar in the picture (usually with a curved diagonal with Microvision's LBS).
You appear to be the classic sucker born every minute that Microvision depends upon. No amount do documented evidence will dissuade you of your religious belief, so I won't try.
Obviously you don't have a clue as to how to apply the standard. I would suggest you read the papers by Dr. Edward Buckley on how to apply the lasers standards to laser scanning.
Or do you think that Sony and Microvision are total marketing idiots that don't know what they are doing selling at 32 lumen product at Class 3R. Why would they classify it as Class 3R which leads to serious problems will selling it as a "consumer" product if they could classify it as Class 1.
BTW, if you used a panel projector with a 1:1 throw ratio (the throw ratio as a significant effect on the classification), they are Class 1 up to about 100 lumens and Class 2 up to about 500 lumens.
Note only the "monomode" 50mW PL 520 and PLT5 520 lasers can be used in laser beam scanning. The PLP 520 "multimode" 120mW laser can only be used with panel based (DLP and LCOS) projectors and will not work with laser scanning projectors. LBS requires monomode lasers.
Its not "proprietary information" to give the laser class of the projector. AT won't clearly state it as other than Class 3R because that would be a lie and cause problems with the SEC.
You are correct that with laser safety being "self certified" it could come down to being sued. This is a big reason why no consumer products company is going to want to introduce a class 3R product. In terms of laser safety, there is "what the regulators say, what is actually eye safe, and what you can get sued for" and they are not the same.
The problem a consumer product company has is that little kids (and others) will be attracted to projector products and will get hit in the eye. Imagine they release a product that is Class 3R and a claim of it damaging a kids eye, the would expect to be sued and have the government demand a 100% recall.