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Old 05-15-2008, 10:05 AM #1
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Default Combining Blue Rays

After seeing the 105mW blue ray up for sale in the buy/sell forum I thought it must be faily easy to make a blue ray module at that power for use in a laser show.

What colous would I get if I mixed say red and blue ray, green and blue ray and green, red and blue ray? Its basically a RGB, or more like RGV but would you still achieve similar effects to a RGB?

Possibly a cheap way of making a RGB here.


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Old 05-15-2008, 11:08 AM #2
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Default Re: Combining Blue Rays

I too have wondered that.

So, if someone has an RGB scanner and a blu-ray, jerry rig the blu-ray in place of the blue and lets see some pics
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Old 05-15-2008, 11:25 AM #3
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Default Re: Combining Blue Rays

405nm would be really really dull.

to match with a green you would need alot of mw.

you can get a 50mw 473nm module brand new for like 250-300
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Old 05-15-2008, 11:49 AM #4
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Default Re: Combining Blue Rays

Quote:
Originally Posted by andy_con
405nm would be really really dull.

to match with a green you would need alot of mw.

you can get a 50mw 473nm module brand new for like 250-300

Yes but take my RGY for example, its only got 100mw of red and 50mw of green, if I stuck a 105mw blue ray in there with them and combined them, what colours would I get? Obviously you wont see much anyway, add a little smoke before hand.

Second point to this is a 473nm at 50mw is 250 as you say but you could make a 405nm with double the power for 20.

Im tempted to get a blue ray and combine it with my green pointer to see what happens.
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Old 05-15-2008, 03:22 PM #5
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Default Re: Combining Blue Rays

It won't be so dull if you project the beam on a white, fluorescent surface (paper). And it will be blueish.

So it would make a good screen effect.
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Old 05-15-2008, 04:02 PM #6
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Default Re: Combining Blue Rays

Quote:
Originally Posted by lamborgini8
[quote author=andy_con link=1210845920/0#2 date=1210850730]405nm would be really really dull.

to match with a green you would need alot of mw.

you can get a 50mw 473nm module brand new for like 250-300

Yes but take my RGY for example, its only got 100mw of red and 50mw of green, if I stuck a 105mw blue ray in there with them and combined them, what colours would I get? Obviously you wont see much anyway, add a little smoke before hand.

Second point to this is a 473nm at 50mw is 250 as you say but you could make a 405nm with double the power for 20.

Im tempted to get a blue ray and combine it with my green pointer to see what happens.[/quote]

i hear where your coming from mate, but its pointless.

save your money its not worth it.

473nm would be like 20x if not more brighter than 405nm
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Old 05-22-2008, 10:24 AM #7
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Default Re: Combining Blue Rays

I've combined the correct amounts of 405, 532, and 650 and have come up with 'white' in a Styrofoam cup. The reason I used the cup is because it's reflective and I didn't need to worry about where I shined the beams, as long as they were in the cup. So in theory, you could make a poor mans RGB with this. But, like andy said, I wouldn't pour money into making a full blown scanner with the 405nm diodes. If you already have parts laying around, go for it. But if you're buying expencive parts to build a quality scanner, you're better off just buying a decent 473.

But, what I WOULD like to see, is someone using the correct glass etc. to make a white beam with the blu-ray. THAT would be cool.
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