Cooling question

[Laser Ben]

I was wondering just how much cooling is required for a set of 2 500mW 650nM diodes. Would it be enough to have them mounted to a 1/4" aluminum sheet with a small fan? I plan on making a 1W 650nM system. Also, does anyone have some cheap beam splitters?

[dave]

I guess it all depends how hot the diodes get doesn't it...

[fluff]

Eyup.

I have a 635 cube, mounted on an aj .

PM me if your interested.

Fluff

[Laser Ben]

Could you give ma an approximate price? Like within $10? Also, did you just purchace a dichroic mirror from me on ebay?

[fluff]

Hi Ben

Sorry, but I've had to use the cube to spice up the red in an rgb system.

I've got a few mirrors of various types on ebay in the last couple of weeks. Whats your user ID.

Fluff

[Dr Laser]

A fan has never killed any electronic component yet!

[Laser Ben]

My ebay ID is cheap.optics.123. From what I understand, the diodes are about 15% efficent, so that means 6.7W of heat lost when both are running. I guedd with a TEC I can keep thoes cool.