"I would think that bouncing it off the ceiling in addition to normal lighting up top in it's normal position, would increase overall photo density if anything.

Weez: I appreciate you giving this a trial with your meter, I don't have one at the moment that I think is accurate enough and I don't have a setup at all at the moment to try it :-) Like you said, I think any gain is a gain worth having if all you're investing is a few extra dollars in extra mylar or foil or paint or paper!"

So much for wetware!
I was fuzzily remembering some Inverse square law measurements from last year.:stoned:
I was happily wrong about reflection stats.

Huge difference!

Started with a white bucket and a yellow bucket.
[attachment=o252039]
I reasoned that the white would reflect the red and the blue well enough.
[attachment=o252040]
And, that the yellow bucket would reflect quite a bit less of each since they are narrow bandwidth sources.
[attachment=o252041]

Now for the numbers;
White bucket started at;
[attachment=o252042]
and dropped to 1570 LUX as the leds heated up a little.

The yellow bucket was 1030 after warmup.
Dang!

Got curious and stuffed a black, plastic bag into da white bucket.
It dropped to;
[attachment=o252043]

A photon absorbed, is a photon lost.


Hmm, I says, what about tech reflect?
I put 3 4" squares of relectix at a 30 degree angle in the bottom of the white bucket surrounding the photodetector, (kind of a triangular funnel);
got 1640!
Woohoo! Now I knows what to do.:thumbsup:

Next time I buy a roll of reflectix, I'll line the whole bucket and take a reading. I'll bet a penny that it tops 1700.

Thanks for gettin' me rollin' on dis.

Aloha and mahalo,
Weezard