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jharth
25mW Classic Wicked Laser
Joined: 05 May 2008
Posts: 51
Location: Cleveland
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 Posted: 5/06/08, 12:56 PM Post subject: diffusion |
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first off, aside from ordering diffusion gratings online,
is there any certain type of store or anything that anyone knows of that sells this stuff?
id much rather get it in person than order it online,
as i do not have a credit card or paypal.
secondly,
diffusion grating is made of plastic, a certain type of plastic? i dont know.
but i was wondering if anyone knows if a 35 or 55 mw executive would melt this plastic.
cause that would suck.
i want this stuff. |
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Jonazzaz
Wicked Lasers Master
Joined: 28 Nov 2007
Posts: 602
Location: Arendal / Norway
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| Posted: 5/06/08, 1:22 PM Post subject: |
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Im not quite sure what diffusion gratings is, but If im right, I think its the plastic that computerparts come in. Antistatic plasticbag?
Those plasticbags with a pattern
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jharth
25mW Classic Wicked Laser
Joined: 05 May 2008
Posts: 51
Location: Cleveland
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| Posted: 5/06/08, 1:33 PM Post subject: |
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not diffusion.
diffraction grating..
anyway
WickedLasers have a few pics of them
and wikipedia might be able to explain how it works. |
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Jonazzaz
Wicked Lasers Master
Joined: 28 Nov 2007
Posts: 602
Location: Arendal / Norway
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| Posted: 5/06/08, 1:35 PM Post subject: |
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Oh, thanks =)
Now I know what it is 
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phoenix77
Fusion Laser
Joined: 20 Nov 2007
Posts: 307
Location: Indiana
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| Posted: 5/06/08, 8:06 PM Post subject: Diffractio |
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Hello jharth, I have run 200mW's of RED & over 125mW's of GREEN Laser light through the 4 different diffraction gratings I have, & never had a problem with the plastic they're made of melting on me, even after 5 min's. of usage at point blank range.  
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HumanSymphony
Fusion Laser
Joined: 21 Aug 2006
Posts: 320
Location: Bellingham, WA
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| Posted: 5/06/08, 8:41 PM Post subject: Re: diffus |
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| jharth wrote: |
diffusion grating is made of plastic, a certain type of plastic? i dont know.
but i was wondering if anyone knows if a 35 or 55 mw executive would melt this plastic. |
they are specially made specifically so they won't melt. i saw something similar about acrylic lenses, but someone said it would take something like 2W to melt one.
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Contemplating building 10mW 405nm Blu Ray |
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King K
Wicked Lasers God
Joined: 06 Sep 2006
Posts: 1584
Picture(s): 95
Movie(s): 35
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| Posted: 5/06/08, 10:23 PM Post subject: Re: diffus |
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| HumanSymphony wrote: |
| they are specially made specifically so they won't melt. i saw something similar about acrylic lenses, but someone said it would take something like 2W to melt one. |
They will hardly melt unless you're using a watt-range deep IR/CO2 laser which would burn the lens, like HumanSymphony said, it would take around 2W of visible light to burn the lens, there's no way that it could burn with an Executive, even the Pulsars use acrylic lenses.
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jharth
25mW Classic Wicked Laser
Joined: 05 May 2008
Posts: 51
Location: Cleveland
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| Posted: 5/07/08, 6:38 AM Post subject: |
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anyone know of any stores that carry this stuff?
i cant really order it online. |
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phoenix77
Fusion Laser
Joined: 20 Nov 2007
Posts: 307
Location: Indiana
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| Posted: 5/07/08, 6:45 AM Post subject: Diffractio |
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Hi there again, You might try giving Edmund Scientific Co. a jingle. I think that they carry those (DG's), & they have a real store. Google up the address on the net. Hope this helps you out! phoenix77
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jharth
25mW Classic Wicked Laser
Joined: 05 May 2008
Posts: 51
Location: Cleveland
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| Posted: 5/07/08, 8:18 AM Post subject: |
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cany find anything around cleveland that sells these.
id have to find somebody with an ebay account.
they got "starburst" grating on there for like 4 bucks. |
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spark001uk
25mW Classic Wicked Laser
Joined: 28 Dec 2005
Posts: 29
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| Posted: 6/12/08, 12:13 PM Post subject: |
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| I bought one off fleabay, the cheap plastic one in a 35mm slide type frame. No problems with it as yet! |
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