Due to cheap prisms here:
http://www.photonlexicon.com/forums/...d=1#post153219
I will cancel this groupbuy
Completely understandable. Maybe a groupbuy for the extreme good quality collimators.
I will have 5 modules ready to build 5 dual blue,s. Designed to hold your collimators and tec cooled including table for the prism pair. I ordered 5 prism pairs with p1t8ull.
if you want a module completely anodisized let me know.
I will have a few prisms coming in as well, likely same price or cheaper, it depends on how much customs will charge. May arrive in a few days, hopefully.
PS: These prims are AR coated specifically for 445nm and for 56 degrees incidence at the angled side, unlike the ones of the group buy, so they should provide the lowest possible loss. I will perform measurements as soon as I get them.
Last edited by RedlumX; 06-30-2010 at 03:44. Reason: PS
Today I have received some prisms and because a few people who had asked me for some, have in the meantime ordered via the group buy, I got some leftovers.
The data are as follows:
Material: K9 = BK7
Size:7.8×12×16
Wedge: 33° Coating:AR/AR
Surface Quality:60/40 Flatness:lambda/4
Coating AR/AR S1:AOI=0,AR440~450 coating S2:AOI=56,AR440~450
They are coated on the sloped side for incidence angle of 56 degrees, so very little loss is expected when using them at or near this angle. Just right now I have made carefully some measurements and indeed found that at proper adjustment, the total loss is about 3% (when changing the magnification by turning away from that angle, the losses grow). A movie that shows this is here: http://pagesperso-orange.fr/redlum.x...cs/anamorp.MOV
A pair goes for $30 plus shipping. First come first serve.
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I'd like to purchase two sets, if possible.
I could use 1 or 2
Rob Mudryk
Retired old and Grumpy Laserist
Hi
I'm interested in two pair , if possible as well..
Thanks![]()
Hi all, already sold out it seems, the first ones got PM and there are no ones left for the others - in case of cancellations I would notify the next in line.
Thanks for your interest!
Regards,
Wolfgang