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Old 02-20-2012, 02:58 PM #1
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Default Wanted, Dichroic Beamsplitters

Hi I need one of these Dichroic Beamsplitters for the DOTs output for the laser sky effect. It will go in front of laser and produce many dots. I have one now but need another one. any help out there? thanks John


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Old 02-20-2012, 03:03 PM #2
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Default Re: Wanted, Dichroic Beamsplitters

I think you mean diffraction gratings, though maybe not if you want liquid sky.
It seems what you request are two different things
Liquid Sky:

Diffraction grating(you refer to):
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Old 02-20-2012, 03:12 PM #3
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Default Re: Wanted, Dichroic Beamsplitters

Hi, You are right Defraction is need for Laser Sky like you have , would work, I do have a single dot pattern I use now but forgot where to buy it. ? Thanks John H
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Old 02-20-2012, 03:14 PM #4
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Default Re: Wanted, Dichroic Beamsplitters

Please don't post the same thing twice. You have 2 threads on this now.

Dichroic Beam Splitters
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Old 02-21-2012, 11:21 AM #5
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Default Re: Wanted, Dichroic Beamsplitters

Where can I get a liquid sky diffraction grating lens. I have not run across 1 yet.......?
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Old 02-21-2012, 11:58 AM #6
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Default Re: Wanted, Dichroic Beamsplitters

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Where can I get a liquid sky diffraction grating lens. I have not run across 1 yet.......?
Liquid Sky is done by scanning a laser beam left to right and
back again at a high rate of speed.

I haven't seen any diffraction gratings that can do that.


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Old 02-21-2012, 04:21 PM #7
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Default Re: Wanted, Dichroic Beamsplitters

Ok that's what I thought! !!!! Santanas post threw me off.
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Old 02-21-2012, 07:05 PM #8
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Default Re: Wanted, Dichroic Beamsplitters

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Originally Posted by santanas View Post
Hi I need one of these Dichroic Beamsplitters for the DOTs output for the laser sky effect. It will go in front of laser and produce many dots. I have one now but need another one. any help out there? thanks John
Cajunlasers.com has diffraction gratings. He ships fast too..

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Old 02-22-2012, 02:16 AM #9
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Default Re: Wanted, Dichroic Beamsplitters

you can use a line generating lens to get the liquid sky effect, however the brightness would be greatly diffused.
just get a polygon mirror and a simple electric motor
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Old 02-22-2012, 02:27 AM #10
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Default Re: Wanted, Dichroic Beamsplitters

You need one of these LINK to make the liquid sky effect.
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