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$600 for a tiny laser-based video projector sounds more than fair to me.. that's actually a bit less than I would have thought.
 

mfo

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Nice find. How much power do you think we can get out of these diodes?
 

Gryphon

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Cool! Just think of all the cool things you can get this thing to do. Its a pocket sized RGB laser with scanner thats pocket sized. ZOMG :eek:
 

Benm

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I'd love to see whats inside the box :)

20 lumen output from the ebay listing. Depends a bit on spectral distribution, but that would put it in the order of 100 mW total output power. At $600 or so its an amazing piece of technology.

I wonder what provides the blue (and perhaps even the green) in these units - dpss or diodes?
 

jayrob

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Those are great questions... I would guess diodes due to the size of it.

And that's a steal, considering we would have to spend about that much just for a 450nm diode...
 
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I dont know if id be inclined to rip one apart.. Well maybe open it and get some pics.

Isnt an item like this the 'holy grail' of lasers?


Though in a year from now, when I see one for parts on ebay... :eg:


I wonder if you can get a good image with a fog machine? It says no focus is required..


They show the laser module here, its a one piece and tiny, dont think there's any DPSS in there...

 

RA_pierce

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I dont know if id be inclined to rip one apart.. Well maybe open it and get some pics.

Isnt an item like this the 'holy grail' of lasers?


Though in a year from now, when I see one for parts on ebay... :eg:


I wonder if you can get a good image with a fog machine? It says no focus is required..


They show the laser module here, its a one piece and tiny, dont think there's any DPSS in there...
I agree with you. This isn't something I would want to tear apart just for a pointer. It's a pretty sweet little device as it is.

I'm curious to know what kind of lasers are used, and at what power.
They say "safe for your eyes" but that would be <5mW, technically.
If the total power is <100mW, then it could be possible that they are using diode 650/635nm, diode 457nm (edit: Oops I mean 445nm), and a tiny DPSS green.

As far as I know, green diodes are still too premature for consumer electronics.

For $600, this thing looks incredible. I was expecting $700 or more upon release.
 
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Meatball

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It will use diodes. One red, one green and one blue diode. BUT we do not know if these are actually in our favorite little TO56 package..
 

Benm

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Its hard to tell - green dpss can certainly be small enough to fit a couple of them in that box. The blue is more interesting, as it would be very expensive as dpss and probably too large to fit, so i presume it has to be diode based. Not very powerful though, perhaps something like 20 mW, but still.

At $600 its a bit expensive to get one right now and rip it up, but this is early adopter price level. Within a year that'll be reduced to less than half, and if it hits a bigger market, i wouldn't be surprised if it hit <$100 soon enough.

I remember getting a $2000 or so single speed cd writer for a radio station, 3 years later i had a 4x in my pc that costed $150 or so. Once these thing hit mass production, prices always plummet.

What's more interesting: will this technology scale in terms of power? Will we see 200 lumen instead of 20 soon? By the time it gets to such power outputs, these things could give most laser projectors a run for their money.
 

RA_pierce

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It will use diodes. One red, one green and one blue diode. BUT we do not know if these are actually in our favorite little TO56 package..
It is too compact to use 5.6mm diodes... It most likely uses the flat types similar to the red/IR combo diodes in some DVD burners.

I'm still not convinced that green diodes are ready for the market... if there is any updated info on these, please share.

DPSS greens can be made pretty tiny, and many green laser devices are advertised as "green diode lasers." The average consumer does not care/know about the difference between DPSS and diode, and after all, the first letter of "DPSS" stands for "diode."
 

Things

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I reckon a DPSS green laser can be made down to the same size as any other diode, but I'm not sure how they'd deal with jellybeaning when they modulate it like that.

The blue might be a low powered 455nm diode.
 

Benm

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I'd agree on the green dpss. If you look at whats actually inside, its all pretty compact stuff. The pump diode could be 5.6mm or also smaller, and the crystal set is no more than a few cubic mm at these power levels.

The interesting part to me is how they pull off the blue. I havent seen any true blue diodes in the wild, not even at low power levels. Yet, this $600 box must contain the solution whatever it is.
 




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