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FrozenGate by Avery

Amazing PicoP laser projector

Supposedly the colour gamut of these things is much more than any TV. because they are using pure Red, Green & Blue lasers and are scanning at 60fps (for now), they could trick the eye into seeing almost any colour between 473nm and 660nm and even more by playing with light intensity and mixing (ie; pseudo-indigo by interlacing red with blue at lower power) Because the eye sees the reflected laser light, maybe the properties of the "screen" could be tweaked to allow pseudo colours outside the RGB gamut.

I wouldn't be surprised if the TV versions of this sport 5 lasers, from Blue-Ray to IR, to cover the entire visible spectrum. Imagine a TV that could display every colour your eye could possibly see! :o

Cheers, CC
 





I for one don't like dpss lasers very much (I hope that no one is getting offended by my statement). They only have about 20% efficiency (I think) because of the crystals, so much of the energy is wasted on ir. Well I'm fascinated by the way the crystals transform the light though. But just imagine a 100mw green dpss compared to a 500mw green diode laser. It is obvious. Maybe in a near future you can buy a 5mw laser diode at any visible wavelength (and then some) for the price of led... That would be great :D
 
Im pretty sure DPSS lasers have better beamspecs in general, though. Correct me if im wrong.
 
I'm just hoping that there will be some trickle-down of this technology soon. You just know there are engineers in China just waiting to reverse engineer one of these as soon as they hit the market. I'm sure Microvision is keeping a tight rein on the proprietary software & chips until they have to let them out the door to sell them.

In the meantime, their patented MEMS chip http://www.microvision.com/technology/mems.html which replaces the galvos we play with might be a model for a slightly larger DIY version if someone could figure out the mechanics of it. Might even be driven by a standard DAC.

This thing does give one lots to think about... ;)

Cheers, CC
 
RA_pierce said:
Damn! This thing is insane!! :o

But how is laser television more practical than regular TVs?
They would cost a helluva lot more than a normal TV and I doubt there would be a big improvement in picture quality and color...

But this PicoP thing... I'm still amazed by the blue diodes...

Hey! It just occurred to me that yellow, cyan, orange and pink pointers can now be much easier to make with the right combination of diodes... or do they already have yellow etc. diodes??? :-?
No more expensive and inefficient DPSS!
Click to expand...

If you search google for laser TV technology you will understand why the displays will be brighter and the colors richer. The improvements in picture quality will be huge. Also Laser TV's are expected to cost less than plasma or LCD TV's.

As far as the PicoP thing, I want one.. ;D The technology in that thing is amazing.
 
so now it will be true what my mom told me all those years ago

Don't sit so close to the T.V. or you will go blind
 
I'm afraid direct green and blue diodes do not exist (cheaply enough) as of today... though some of us *coughTallaxocough* would like to believe it.
There are though, tiny DPSS assemblies that give about 1 mW of blue or green, within a diode can.
 
BlueFusion said:
I'm afraid direct green and blue diodes do not exist (cheaply enough) as of today... though some of us *coughTallaxocough* would like to believe it.
There are though, tiny DPSS assemblies that give about 1 mW of blue or green, within a diode can.
Click to expand...

I believe the company snake creek lasers makes 50mW green from an elongated 5.6mm package.

edit:
oops, necro post. Sorry. Still an interesting topic.
 
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Curiously_Coherent said:
I was wondering that too... It might be a bit of artistic license to simplify the workings video, or they've come up with some kind of integrated diodes with crystals in the can. (I'll let the more knowledgeable members here debate whether or not this is even possible...) The thing is freakin' tiny though, so they must have found a way to shrink all the workings tremendously and integration is the only way to do that, as evidenced by their super compact beam combiner. There's a lot of really cool engineering in there. Can't wait for someone here to dissect one! :)

Cheers, CC
Click to expand...
I have seen 532nm "diodes" w/crystals built in the can (only slightly longer then a regular 5.6mm diode.)
I'd say this is the trick to miniaturization. Or maybe G/B diodes are further along then we think. Some technology's are kept classified for years before they are released to the public. It's all about the $$$ to be made.
 
Green diodes exist as of now, in labs. Multiple companies have gotten past 520nm in labs with published results, but nothing is production-ready as of yet.

Blue diodes have been out for years now, but green is just within the past year.
 
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