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Old 10-27-2011, 01:32 AM #1
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Default WTB: Beam Splitting Filter

I am looking for something like Optotronics Product Details

Optotronics has a $20 minimum, and dosent respond to my emails , so I am looking to buy elsewhere.

A cube style filter wont work for my application, it needs to be a think filter.

Thanks in advance,
Jacob


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Old 10-27-2011, 01:36 AM #2
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Default Re: WTB: Beam Splitting Filter

http://lasershowparts.com/store/index.php?_a=viewProd&productId=149

They also carry one for red. Hope this helps some..

Edit:
I should have been a bit more diligent....good luck with your experiment
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Old 10-27-2011, 01:39 AM #3
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Default Re: WTB: Beam Splitting Filter

Quote:
Originally Posted by 532 with Envy View Post
http://lasershowparts.com/store/index.php?_a=viewProd&productId=149

They also carry one for red. Hope this helps some..
That one is a cube, but thanks for trying

EDIT: this is also for a projector, so it needs to be able to split 650nm, 532nm, and 445nm

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Old 10-27-2011, 02:02 AM #4
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Default Re: WTB: Beam Splitting Filter

I think this may be more what you are after. These are rather large though, unless you can cut them down without scuffing or breaking them.

FS: dichros
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Old 10-27-2011, 02:03 AM #5
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Default Re: WTB: Beam Splitting Filter

This is what you want?

Lasershow Parts - Dichroic Filter - Reflect Red, Pass Green, Pass Blue 25mm
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Old 10-27-2011, 02:05 AM #6
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Default Re: WTB: Beam Splitting Filter

I dont think dichros will work. I am basically looking for a way to cut down on the output of RGB a scanner, when a filter is placed in front of it, but all colors have to pass equally. I dont trust my electrical skills to do something like this.
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Old 10-27-2011, 03:30 AM #7
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Default Re: WTB: Beam Splitting Filter

Essentially, you want a high-power neutral density filter. Try looking up those words, since that is exactly what you want. If you want all your lasers to output about 1/2power, you want ND2, if you want 1/4 power, ND4, and so on. You can stack them too, ND2 with ND4 = ND8, etc. One problem is though, is that none of them are truly perfect. They are supposed to inhibit all wavelengths equally (in theory), but that is not easy to do. I don't know how high of power your lasers are though, and I'm worried that most ND filters will burnout unless you get ones specifically designed for lasers (which are out there, but are $$). Good luck.
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