Hooray! Some interest in better LED color rendition!
HarryN - We will look forward to your high-CRI flashlight. My thermal path plan is one that has been successful for me on many projects, including my Hydra flashlights. I will apply a very thin coat of clear nail polish to the
contacts only on the bottom of the Rebel LED, and then glue it directly to the P4 heatsink with Arctic Alumina epoxy. Then I scrape the top-side contacts so the copper is bare, and solder directly to the top. Here's a small lamp head for example:
bshanahan14rulz, I will lay out a rectangle, with 4 rows of three LEDs. Each set of 3 LEDs will connect to it's own regulator. I'll space them out away from each other so as to not concentrate the heat, as much as possible.
marokero, you have set the bar really high with your awesome Riegel light! I do dabble some with macro pics, but desktop photography is the term for a large part of my amateur work. I gave a presentation to my local camera club last year on desktop photography, and showed how to build a classic soft-light box, and how to build LED lights. Here's an image I used to show the interesting effects you can get using a multi-emmiter LED light with no diffusion:
BillyNoMates, good to hear from you. I'm pleased to hear you are going to try the new parts. Where do you buy them on your side of the ocean? And do you have a target project yet?
I'll be sure to post my new light project properly once I get further along.
Cheers,
Jeff