New 1000mw RGB Finally finished

[mattydrac]

I'm using a 55mm Hoya lens. The hole for the aperture is 52mm then I bought a step up adapter to go from 52 to 55mm thread so I can replace the lens if ever I need to.

[MikeNye]

Does the Hoya lens change the beam at all, or is it simply a window & UV filter?

Pardon my ignorance, I'm still new to a lot of this.

[danielbriggs]

Assuming it's a UV filter; there are losses generally in the region of 5-6% through these.
Strongly consider getting an Edmund optics AR coated window instead - come in a variety of standard sizes - and the high efficiency AR coating reduces losses to the 0.5-1% range.

http://www.edmundoptics.com/onlineca...productid=1919

[mattydrac]

cheers Dan....do they come in standard thread fitments ike the camera lenses?

[danielbriggs]

No, it's just an unmounted piece of glass...

[decix]

I see 2 mirrors which could have been avoided by different design, every mirror means power loss. Also most people mix blue as the last color into the yellow beam, but if you have enough blue and can live with 2x dichro loss you can do that of course. Apart from that: a lot of wasted space. Your next build can be more compact. Keep going!

[bridge]

cool design make it different.