Feeler: 9mm diode housing in copper - any interest?

[kitatit]

Hi Dave,
I just did a quick read up on the progress with the 9mm blues..... Ah, yeah..... Count me in for copper 9mm housings

Cheers
Kit

[polishedball]

Last week Chad said he was going to send the PBS to Eric for his evaluation.

Was just joking. You have kept us plenty informed. Thanks!

[dave]

Have you experimented with copper housings at all? Jonathan and I have done a fair bit of testing with different alloys of aluminum, copper, and brass, and found that copper actually didn't perform that well over aluminum. It does provide for a bigger heat reservoir, taking a longer time to heat up, but once hot it tended to hold that heat.

I'm not really interested in it capability to hold heat ( thats bad ), only its thermal conductivity to transfer the heat thru to a heatsink.. Its the surface area of the heatsink, which dissipates the heat.

[andyf97]

Interested in a few too; but can you make them larger too; so that the entire body is a complete mount.

From a single 30mm cube of copper.

Mounting holes from the top, 4.5mm

Make two holes ( threaded M3 ) at the back; down near the bottom, so that a wire clamp can be added to clamp the thermistor cable and drive cables.

Add a 5mm hole in the top center rear for a temp sensor.

Add two tiny V in the bottom front and rear for easy alignment.

Add a small index so that the diode cannot rotate.

[dave]

So it looks like there is a greater need for these now with the 1w greens. Ill get a small batch ordered shortly.

[dnar]

Posting just to get subscribed to this thread. Watching with great interest.

[andyf97]

Anyone got a full datasheet, can't find one on on Nichia.

http://www.ebay.com/itm/261352864703...703%26_rdc%3D1

[polishedball]

Thanks I'd be in for 2 or 3

[dave]

Ordered yesterday.. If I'm lucky I might see them before the new year.

Also ordered a whole heap of DT scanner mounting plates to allow the scanner to be screwed down from above..

[planters]

Dave,
I hope you ordered a lot. These will be pouular. I know I will be using them.