Quote Originally Posted by scott9116
Any thoughts on red or blue tinted reflectors? A lot of lights CFLs and tubes even my highdollar colored tubes have a green spike in their output. My understanding is that if the said spike is too low in the spectrum could keep PAD from working. A red or blue (depending on the application) anodized or tinted reflector could eat up half of the green spike of the offending bulb and still reflect most of the red or blue light that you want to keep.

Been thinking about this for HID lights. Hence, the title of the thread. During daytime lighting it shouldn't matter any. It could still apply to say, vegging under HPS with a blue reflector.

I'm also considering coating reflectors and maybe walls with titanium dioxide for odor control. It's the stuff they use on "Odor Eating" CFL's. $5 a pound for this stuff from make-up/soap suppliers on the net. It's apparently safe enough to use in hippie soap and that powdered mineral make up.
I think the TiO2 thing has had bad reviews, but I haven't tried it so I can't really say.

Dichroic filters seems the best but way too pricey for average use.

The Blue Green / Green Blue sensitivity of the Blue "DAY" receptor seems sensitive up from 500nm to about 520nm and we tried all last year to test out higher transmission Yellow rather than lower transmission Red filters and had some real headachs that turned out to be more ballast related than we anticipate (???!!!...), live and learn. So now we're just doing Red filters for standardized units that work.

The best results come from pairing reflector/filter reflection/transmission curves to the light source for maximized reflection/transmission.

You're on the right page and those are excellent ideas on reflectors, but we're sticking with a straight filter set up right now for standardization (the 282 lamp).

Gotta run...

Take care, Sal.