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Old 08-23-2010, 01:06 PM #1
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Default ¿ so that they serve these 3 prisms ?

Hello it buys these 3 prisms in ebay, can say so that they serve to me, not so that they are, thanks





it connects to the announcement, down puts I do not have idea so that it serves, only is a numeration in the prisms

3 51mm Square Crystal Laser Beam splitter Combiner Cube en venta en eBay.es (finaliza el 12-ago-10 03:55:15 H.Esp)


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Old 08-23-2010, 01:51 PM #2
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Default Re: ¿ so that they serve these 3 prisms ?

Those are PBS cubes (very large ones). They are used to split a beam in two, or combine two beams into one.
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Old 08-23-2010, 02:00 PM #3
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Default Re: ¿ so that they serve these 3 prisms ?

The Seller has no clue as to what these Cubes are used for
besides spilting/combining..
Nor what wavelengths they are to be used with...

You will need to test them yourself or try to contact the Seller..IMO


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Old 08-23-2010, 03:39 PM #4
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Default Re: ¿ so that they serve these 3 prisms ?

Probably beam splitting cubes. Depending on the wavelength it will either pass or reflect.

They might be polarized beam splitters too. If you take a diode laser and shine it through, then rotate the laser, if the beam goes from passing to reflecting, it is a PBS.
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Old 08-23-2010, 03:41 PM #5
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Default Re: ¿ so that they serve these 3 prisms ?

Online translators still have quite a way to go me thinks
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Old 08-23-2010, 04:30 PM #6
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Default Re: ¿ so that they serve these 3 prisms ?

thanks all I go to prove it and story
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Old 08-23-2010, 05:02 PM #7
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Default Re: ¿ so that they serve these 3 prisms ?

photos with 405nm

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Old 08-24-2010, 11:56 PM #8
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Default Re: ¿ so that they serve these 3 prisms ?

The video is now available from the prism beam
YouTube - NEEXMOO's Channel
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Old 08-26-2010, 01:03 AM #9
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Default Re: ¿ so that they serve these 3 prisms ?

Wow.. those look like bigass PBS cubes allright!

As for wavelength: I doubt they were intented for blue/bluray, as you see some greenish fluorescence within the glass. Perhaps they were intended for 660/635 nm use, and they would be great for building one of those scary powerful red laser units that combine knife-edging with pbs conbination.
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Old 08-26-2010, 10:30 AM #10
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Default Re: ¿ so that they serve these 3 prisms ?

yes,is very large, and if not for meccla pbs, I think no, I think they are for any length nm tuning, but not which also have 2 filters, and usually do not meccladores pbs ...
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Old 08-27-2010, 04:54 PM #11
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Default Re: ¿ so that they serve these 3 prisms ?

They look more like dichroic mirrors to me. See how, for example, the white packaging appears yellow through the cube.
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Old 08-27-2010, 04:59 PM #12
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Default Re: ¿ so that they serve these 3 prisms ?

I am only used a laser 140mw 405, and when passing it through the bucket that form, the color is put it change, but 405nm is only a only laser
entrance
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Old 08-27-2010, 05:00 PM #13
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Question Re: ¿ so that they serve these 3 prisms ?

Anyway, i see a very curious thing ..... look the 405nm through the cube, one of the prisms that compose the cube fluoresce in green, and the other fluoresce in yellow ..... different materials with, maybe, different optical densities and properties ? ..... and also the faces AR coatings looks different for the faces ..... very curious (also, wondering if they can be RGB combiners, like the ones used in some videoprojector, that can take red, green and blue on 3 different faces, and give the combined white from the fourth one) .....
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Old 08-27-2010, 05:03 PM #14
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Default Re: ¿ so that they serve these 3 prisms ?

podria to be, another day if so that she serves not I do not buy it, but I I like and I could not be resisted jajaja
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Old 08-29-2010, 06:19 PM #15
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Default Re: ¿ so that they serve these 3 prisms ?

I'm the same way. I'd have no use for it, but it's so interesting that I might use it someday.

I think the fluorescense is unintentional because these were not meant to be used with near UV laser. If you have lasers that are more like pure red or pure green or pure blue, you should play with the cubes with that laser. This assembly probably either combines red, green, and blue, or splits them out from white. Reflection or transmission depends on the wavelength of light.
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Old 08-29-2010, 08:48 PM #16
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Default Re: ¿ so that they serve these 3 prisms ?

ok, I sold them already to 2, has left 1 to experiment
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