445 Dichro

[KGB]

I know that LaserWave is working on a pass 473 reflect 445 dichro but I'm in a bit of a rush and am having a hard time finding out if that one will be done in time.

I have found this but its pricey;
http://www.semrock.com/Catalog/Detai...&CategoryID=83 $195

Does anyone know if the laserwave 405 dichro will work "at all" to combine 445 with 473?

Also, does anyone know ANYWHERE that I can get a reflect 445 pass everything else for a good price?


Thanks,
-Brooks

[stanwax]

You wont find any cheap ones around but I have in my posession a couple of pass 473 reflect 445 dichros
Yes they are for sale but as they actually belong to a customer of mine I will have to check the price

Rob

[KGB]

Cool, Just hit me up with a price when you can.

-Brooks

[MisterWilling]

Does anyone know if the laserwave 405 dichro will work "at all" to combine 445 with 473?

The 405 Dichro from semrock will not work to combine 445 with 473, I am using it combine 405 with 445 and 473. It it somewhere aroun 90-95% efficient at passing 445 and everything above it.

[KGB]

BUMP....




....... Doesn't anyone have one of these diodes combined with 473 in a RGB? How did you do it?


-Brooks

[MisterWilling]

A PBS cube coated from 473 might work okay with 445 too. I'm not sure how well but thats what I plan to do. combining the two blues with a PBS prevents your other lasers from being subject to the loss of passing through a dichro.

[KGB]

I was also thinking about this option but wasn't too sure. Never used a pbs before. Anyways, this may work for me if nobody can come up with a source of dichro's under $150.

So what would be a good place to get a 473 pbs and how much 445 would it kill? any ideas.......?


Thanks yall,
-Brooks

[Doc]

I was also thinking about this option but wasn't too sure. Never used a pbs before. Anyways, this may work for me if nobody can come up with a source of dichro's under $150.

So what would be a good place to get a 473 pbs and how much 445 would it kill? any ideas.......?


Thanks yall,
-Brooks

Speak to insanity on here, he did this 12 months ago and got very good results.

[norty303]

Speak to Rob about the new LW RGB dichros. Mine was pass blue but reflecting a whole lotta 445 so we think they're optimized for 473 I haven't measured just how much was getting reflected (and that was off the uncoated face) but transmission of 445 was only about 10%

[stanwax]

A PBS will work (I have used a laserwave one - same as Mark used) but it depends on how well polarised your 473 is. Its easy to rotate a diode (445) but not a 473 head so there may be losses of that wavelength.

I have available on a first come first served basis qty 4 pass 473 reflect 445 dichros which are 10x10 in size
here are the specs

Coating: S1: HR 445 R>99% (random polarization) HT473nm T>90 %( random polarization), 45deg+/-1deg AOI
S2: AR R<1%@473nm 45deg+/-1deg AOI


I have built 2 projectors with these dichros and they are very good and the big advantage is that you can pbs 2x473 and or 2x445 and still join them - which you cannot do if joining with a cube.
They do need to be placed at exactly 45 degrees but work very well at this angle.

We will sell for £75 each plus shipping and like I said are first come first served.
They have been cut from larger mirrors and as such there is some chipping on 2 of them on the plain surface (ie not the sexy coated surface) and there is still a large area that is useful and one is slightly worse that the other. If anyone is interested then the best ones will be sold first.

Rob