Mirror

[reefburnaby]

Hi,

I would agree that focusing light for corals is a good thing -- that is if the corals want more light. However, if your precious SPS coral sits between a bright band and a no/low light band (assuming no glittering), then half of you SPS is not doing well...and the other is doing very well. In other words, there is a chance that half the SPS will actually starve. I know this is an extreme example and it rarely happens because....

Did you know that the spider reflector actually spreads the light out rather than focusing it ? If you do a ray trace, you'll understand what I am talking about.


BTW, diffuse lighting doesn't suffer from the depth effects as much as spot/specular light -- its a waveguide phenomenon with respect to the water and the glass walls (okay...that's getting really technical...). So...its a bit more tricker than one would think.

As for the cooling thing...we could try blowing at the the reflector from side, but not at the bulb. If there is a will...there is a way [img]images/smiles/icon_smile.gif[/img] Besides...its the intensity that counts ? right ?

- Victor.

[ 14 February 2002: Message edited by: reefburnaby ]</p>