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ArcticMyst Security by Avery

Blue Laserdiodes wil be cheap soon!






A

Ace82

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This is why I'm kinda trying to help my good friend John Lawson wait on his RPL blue! :eek:
 
AdamR

AdamR

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Surely you can't expect all that much power out of them?
 
A

andythemechanic

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AdamR said:
Surely you can't expect all that much power out of them?
Click to expand...

Yeah, I don't expect them to be in the 100mW's. Maybe more around 20mW or so. Would still be very nice to have "real" blue diodes, not only blurays.
Another thing is that this projectors containt a tiny microfabricated scanner mirror assembly. Thats also a "want have" for me.

Add: I looked a bit more on the microvision website and they state the lasers inside the projector to be class 2 lasers (up to 1mW). So maybe they can be pushed only to 5mW or so :'( . Still they would give nice pointers
 
Cyparagon

Cyparagon

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1W 442 modules are already available for ~$5,000, and 2W for ~$9,000 which rivals the price/mW of many greens.
 
A

Ace82

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Patience. We may not ever see high powered blue diodes because the blu-ray being a shorter wavelength is superior for data storage. But this is the start, wait till high powered laser projectors are readily available... But I don't see any diode not used for data storage being considerably cheap... Maybe the DPSS will still prevail, although it's not nearly as efficient.
 
Benm

Benm

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It depends on how big the projections will become i guess.

If you look at something of serious size, like a 42" tv, you do need quite a lot of light overall. The typical backlighting in such a tv set is about 200 watts (electrical) cfl's, yielding about 20 watts of optical power even after the polarizing filter.

To match that in brightness, you're looking at quite a lot of laser power - especially for the green and blue components. I'd count on at least 5 watt each, and that is using optimal wavelengths.

If you're satisfied with a smaller area or dimmer image, the power levels can be much more manageable - a very useful tv projection of about 30" could be realized with 1 watt for each color, though it won't be all that visible in bright ambient conditions.
 
K

kendon

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Cyparagon said:
[quote author=Ace82 link=1235840366/0#8 date=1235919010]We may not ever see high powered blue diodes
Click to expand...

If 2W isn't high power, what is?[/quote]

aren't the blues these days dpss?
 
jander6442

jander6442

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Cyparagon said:
[quote author=Ace82 link=1235840366/0#8 date=1235919010]We may not ever see high powered blue diodes
Click to expand...

If 2W isn't high power, what is?[/quote]
I think he meant use as individual laser hobbist on a budget.

I'm a thinking that if I ever won the lottery I would have to sugar daddy everone on the forum. Want that c-mount 2watt
blue sure no problem. Rant over!!!!!!!!!!!!!!!!! {I relize there is no critter} :cool:
 
A

andythemechanic

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jander6442 said:
I think he meant use as individual laser hobbist on a budget.
Click to expand...

Yes, the keyword here is "cheap" . If the price will drop below 100$ for a blue diode this would be nice even if it's only 10mW.
 
styropyro

styropyro

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kendon said:
[quote author=Cyparagon link=1235840366/0#9 date=1236005712][quote author=Ace82 link=1235840366/0#8 date=1235919010]We may not ever see high powered blue diodes
Click to expand...

If 2W isn't high power, what is?[/quote]

aren't the blues these days dpss?[/quote]
Most are, but the one Cyparagon was talking about is a diode laser.
 
Spyderz20x6

Spyderz20x6

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andythemechanic said:
[quote author=AdamR link=1235840366/0#4 date=1235876567]Surely you can't expect all that much power out of them?
Click to expand...

Yeah, I don't expect them to be in the 100mW's. Maybe more around 20mW or so. Would still be very nice to have "real" blue diodes, not only blurays.
Another thing is that this projectors containt a tiny microfabricated scanner mirror assembly. Thats also a "want have" for me.

Add: I looked a bit more on the microvision website and they state the lasers inside the projector to be class 2 lasers (up to 1mW). So maybe they can be pushed only to 5mW or so  :'( . Still they would give nice pointers[/quote]
Guess what?
If it's inside a complete unit, it's always rated Class 2.
20x DVD burners say "Class 2 Laser".
 
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