maybe feeler for tiny RGB and need some advice.

[LEDpaint]

Brad, you beat me to it.

[dsli_jon]

..He'll offer to have Woody give you a call...

..yeah, but we're talkin down in the 'Land of the Vegemite sandwich'.. we don't need no stinkin Cee Dee Arr Eeych!

But, indeed - that would-make for a rather 'unique' product-report (..Killer Whale with a 400W KTP on it's forehe...

..oh, crap... Sorry, chad..
j

[kecked]

I built this same projector a few months back. For the time it worked before it blew up (no idea but full cascade failure), the image was very good. 110mw 638nm 50mw 520nm 80mw 450nm
The image rivaled pcaom.

Here is something you need to know right now. There is no dichro that will work. You can combine any two colors but the third one will need a pbs cube. 520nm is right in the middle of where most dichro tranisitions. I tried off axis to change the center of the dichro and got it to work some but you loose a lot of power. I suggest you combine red with blue and pbs the green. After all green is now the most desired to keep color now.

This is a very worthwhile under taking. You will like the result. PS: since these didoes need so little current you could use the team wavelenght fl-500 chip to good measure.
http://www.teamwavelength.com/downlo...eets/fl500.pdf

[dsli_jon]

...There is no dichro that will work. ...

..then-again, you didn't end-up trying the 'old-skool' ion-line dichros I suggested / offered-for-test, now did you, Sir? Granted, I have-yet to prove it, myself (..with no DI 520, in-house, as of-yet..) but, based on the performance of the ion-dichros with an Argons' lines - which are specifically-coated to cover the Ar-lines between 501, 514, and 528 (and of course, the blues, etc..) -
so, they should be quite-efficient at 520...

..Conversely, any of the coaters / suppliers of dichros for "green", are likely-assuming you're (only) DPSS-ing at 532, so, yeah.. '12nm-lower' is quite-possibly gonna be 'out of range' for a cheapie or narrow-band "green" dichro..

..Some Argon-optmized dichros, however, can be a little-weak at 445, tho, since most Ar's taper-off at 457-454 - not usually much power-there in those lower-nethers, but .. If you get a more 'expanded-range' ion-line one, you might find that they've also 'covered' the possible use of HeCd, which - at 442nm - is gonna be quite spankingly-efficient with the 445s... But, if you are, indeed, using the 450s (vs 445) you may find that good Ar-ones, will still be decent at 450, and only start to 'drop off a tad', at 445 (...and, when I say 'drop off', I mean, like - based on my tests, from 0.25% R to maybe 0.50-0.75%..) - clearly-less than 1%, which is fantastic, compared to some of the purportedly-great 'ChOEM' stuff I've seen in PL-peeps' projectors... wtloss?? Eeek...

Anyhoo, will-trade a nice Ar-efficient dichro-chunk for a 520.. jk.. I don't have time to 'play', anyway, right now...
ciao
j

[kecked]

here is the issue with the old stuff it reflects blue and green and passes red. I need to combine blue and red and then pass that through the next dichro while reflecting green. No matter how I tried I could combine any two colors but the third was blocked. PBS solved it.

[Laser Wizardry]

" 15 characters"

[m0f]

They do, or at least they did a year ago. I'm using one in my 3W rgb, adding the green in last. Not sure how suitable for 520mn it is though..

[robvdv]

a magenta dichro that will reflect green and pass blue/red at a 45 degree angle.

You can scavenge these from Casio projectors. DTR has a bunch.

[hakzaw1]

No- I fully understand- CNI is china- just tossing out some ideas- AixiZ is nice to me-just retruing favors owed. Not all can afford Kvant modules.
best wishes and good luck with your build--