Bias Lighting

kmak · 12-08-2009, 07:19 AM

Hey,

Does anyone use bias lighting behind their flat panel? I've read that 6500K is the ideal colour temp, but finding a small enough fixture is the challenge.

I've found this http://www.liteline.com/product_spec...4-8-3200-S.pdf at Home Hardware. The T4 size is ideal, they can be ganged, and a 6400k T4 is available, somehow. If I can find the bulb locally, I think I'll give 3 of these a whirl. If they don't work, I can always use them under the kitchen cabinets.

Ken

Andrew Pratt · 12-08-2009, 09:05 AM

I've never really given it a fair shot...I have tried with small lamps but didn't really feel it was worth it at the time. Maybe I should try again though?

Gordon Moore · 12-08-2009, 09:18 AM

Depot sells a 6500K daylight bulb from Philips. I use it and it makes a big difference. It's technically NOT the right bulb because you need 90 or better CRI and those are hard to find except from Ideal-Lume.

The Philips bulbs at Depot are only 75 or 80 CRI (I'll check at home) but it works really well. I use industrial velcro to the back of the TV and then do a completely dark room with Bias. Eases eye strain.

Bent · 12-08-2009, 10:17 AM

6500K would be ideal, but keep in mind it would only be a perfect consideration if your walls and ceiling were also neutral (6500k) colour, any realistically (read: almost all, to every room out there) coloured room would benefit from some form of bias lighting, but inot absolutely written in stone that it needs to be 6500 K.

kmak · 12-09-2009, 02:48 PM

Thanks Ben,

I put 3 x T4 3200k or 4100..........not sure what they are. Since the walls are yellow, not neutral grey, they seem a little "hot". I'll properly evaulate them tonight. How do I determine the correct light temp req'd, do I need a mass spectrometer or flux capacitor? Now I can clearly see all the imperfections in the drywall too ffs

My other challenge is that I can't remotely control them with my Harmony. The only on/off outlet remotes that I can find are RF or "The Clapper". Plus it's a little tight back there for a standard plug, never mind a gizmo. What can I use as a 90 degree adaptor? Do they make such a thing? I'm not liking the white cables all over the place. It WAS a nice clean set-up b4.

K

Andrew Pratt · 12-09-2009, 03:15 PM

You could use X10 and an IR543 to control the lighting back there.

Gordon Moore · 12-09-2009, 03:59 PM

Quote:

Originally Posted by Ken Makela

Thanks Ben,

I put 3 x T4 3200k or 4100..........not sure what they are. Since the walls are yellow, not neutral grey, they seem a little "hot". I'll properly evaulate them tonight. How do I determine the correct light temp req'd, do I need a mass spectrometer or flux capacitor? Now I can clearly see all the imperfections in the drywall too ffs

Yeah without a spectral analyzer (I think that's what it's called) you can't be 100%.

For this, just go by your eye. There is a "technical" right and wrong....but you're the king of the castle so it depends on what you are going for.

Here's the big spiel on it: http://www.cinemaquestinc.com/ive.htm

kmak · 12-09-2009, 06:12 PM

Thx guys,

Gordon, I guess it'll be trial and error on the colour temp. Higher Kelvin should equal less yellow.............

Andrew great advice.

This is exactly what I need (sweet)!
http://www.x10.com/products/x10_sr227.htm

And this:
http://www.aartech.ca/ir543-x10-plug...-receiver.html

Harmony compatible too.

Now I just need to rewire one strip to a shallow 90 deg plug and voila!

Andrew Pratt · 12-09-2009, 06:20 PM

I have a bunch of X10 stuff including the IR543 unit and it works well enough.

taz13 · 12-09-2009, 10:21 PM

http://www.vistek.ca/results/ProPhot...heet-Kits.aspx
These might help, I use them for correcting flash and fill lighting.

Midnite Mick · 12-12-2009, 08:53 PM

If one had an undrywalled wall (open studded) that a display will hang are there any type of recessed lights / pot lights that could be used for this application. However, it is only a 2x4 wall.

Thanks,
Mike