Question for People Who Use Bias Lighting. - AVS Forum | Home Theater Discussions And Reviews
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Old 12-17-2009, 08:59 PM - Thread Starter
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Where did you get yours? Any tips on which to buy?

I've seen this recommended a couple of times, but I wish I could find something cheaper:

cinema quest inc

I have a Samsung LN52B750 if it matters. Just looking to improve my night time blacks! I have very very minor flashlighting on the bottom two corners, and i was hoping this would help in that regard as well as making blacks appear a bit blacker. If not i really dont mind, but it would be nice. This is what they are for, no?

thanks everyone, happy holidays!
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Old 12-18-2009, 05:24 PM - Thread Starter
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bump
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Old 12-18-2009, 06:18 PM
 
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Try IKEA Dioder or from this place (http://www.cyron.com/)
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Old 12-18-2009, 07:08 PM
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Although $59 may seem alot, its actually worth it, the Bias color is just right and its slim and easy to install/setup.
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Old 12-18-2009, 10:24 PM - Thread Starter
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thanks guys. do i have to buy TWO of those for top/bottom or left/right, or will one suffice?
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Old 12-19-2009, 11:40 AM
 
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It's always better to have more than one because (depending on the type you get) the light distribution might not be as great as you'd image and so one area of the television may appear lighter than another side. I have one with 4, and it did take me awhile to figure out where to put it and have the light symmetrical.

A few good photo's on this

Quote:





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Old 12-20-2009, 11:51 PM - Thread Starter
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nice pictures! i really like the effect. im going to some hardware stores tomorrow, hopefully ill come up with something.
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Old 12-21-2009, 12:24 AM
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Sorry for the horrible quality images.

I bought a really cheap rope light from Wal-Mart. Cost me $8 I believe. It does wonders for my black levels. I attached it to the back of my 52B750. Blacks are PLASMA-LIKE with the rope light.





This is a temporary solution (the light is attached with clear duct tape until I can find the proper tools to mount it right).

This is a REALLY cheap solution, as I don't have the space and money to spend too much on a truly great setup. It's in the bedroom with very limited space, so excuse my poor excuse for a setup. XD

BTW, the rope light also comes in blue and red. The white rope light is pretty yellowish in nature as you can see.
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Old 12-21-2009, 03:27 AM
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Wonder what the blue would do to your picture

Matt
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Old 12-22-2009, 12:08 AM - Thread Starter
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thanks for the pics shin.

im seriously considering going that route, since it seems so easy to set up and its really cheap.

i definitely dont want to spend $120+ on 2 standard ideal lume lights from cinema quest. im probably going to a couple hardware stores tomorrow and seeing if i cant find some 6500K fluorescent lights.
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Old 12-23-2009, 04:10 PM
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Using white dimmed light behind the tv is already a big improvement over yellow light.
Having black/dark coloured walls in your tv-room is also a big inprovement.
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Old 12-23-2009, 04:26 PM
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My $15 solution:



Back off man, I'm a scientist.
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Old 12-23-2009, 09:59 PM
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Quote:
Originally Posted by sharkcohen View Post

My $15 solution:



What kind of light is that? Just a regular clip-on lamp?
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Old 12-23-2009, 10:54 PM
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Quote:
Originally Posted by wth718 View Post

What kind of light is that? Just a regular clip-on lamp?

Yup, with a 'daylight' CCFL bulb.

Back off man, I'm a scientist.
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Old 12-24-2009, 05:15 AM
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So, for those of you that have come up with your own solution, I will assume you have it plugged into the switched outlet on the back of your AVR, correct? But, if you want to watch tv without using your audio setup (through the tv speakers), how do you turn the light on and off wothout getting up and replugging it into a regular outlet every time?

Take responsibility for your own actions...society is not here to look after you...
In other words, if you order coffee, expect it to be hot for christsake!
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Old 12-24-2009, 06:05 AM
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Quote:
Originally Posted by CSonntag View Post

So, for those of you that have come up with your own solution, I will assume you have it plugged into the switched outlet on the back of your AVR, correct? But, if you want to watch tv without using your audio setup (through the tv speakers), how do you turn the light on and off wothout getting up and replugging it into a regular outlet every time?

Planning to control mine with this IR remote control outlet which is on order:
http://www.dealextreme.com/details.dx/sku.13147

I have a programmable universal remote and will add control for it as part of the power on and off macros.
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Old 12-24-2009, 06:39 AM
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Quote:
Originally Posted by CSonntag View Post

So, for those of you that have come up with your own solution, I will assume you have it plugged into the switched outlet on the back of your AVR, correct? But, if you want to watch tv without using your audio setup (through the tv speakers), how do you turn the light on and off wothout getting up and replugging it into a regular outlet every time?

If you aren't viewing critically just watch the TV as-is w/o the back light. For serious viewing fire up the A/V system.

For my Old Rear Projection TV I may just get a regular 4' single lamp T8 fixture and mount it on the back of the set. Get a "sunshine" 5000K 86CRI lamp for it. Easy an cheap.
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Old 12-24-2009, 06:51 AM
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What color temp of light is considered correct for a bias light? I recognize that the color of the wall will greatly affect the light color reflected back to the viewer, but assuming it's neutral gray, what color temp is recommended?

Take responsibility for your own actions...society is not here to look after you...
In other words, if you order coffee, expect it to be hot for christsake!
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Old 12-24-2009, 07:58 AM
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Quote:
Originally Posted by csonntag View Post

what color temp of light is considered correct for a bias light? I recognize that the color of the wall will greatly affect the light color reflected back to the viewer, but assuming it's neutral gray, what color temp is recommended?

6500k.

Back off man, I'm a scientist.
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Old 12-24-2009, 09:10 AM
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Quote:
Originally Posted by CSonntag View Post

So, for those of you that have come up with your own solution, I will assume you have it plugged into the switched outlet on the back of your AVR, correct? But, if you want to watch tv without using your audio setup (through the tv speakers), how do you turn the light on and off wothout getting up and replugging it into a regular outlet every time?

Something like this may work for you...
I'm not sure about posting Amazon links but just copy and paste this...it's a power sensing power strip

Smart Strip SCG3 Energy Saving Power Strip with Autoswitching Technology
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Old 12-24-2009, 10:05 AM
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I did the rope light trick on my B750 as well. Some white LED ones are bright and clear as hell. $20 bucks for 12 feet. Secured with clear zip ties which were included. Yeah, the rear doesn't look professional or anything, but nobody looks at the rear of your TV so who cares? Takes a lot of stress off your eyes for late night viewing.




Quote:
Of course, I got it modified with the TK-427, which cheeks it up another, maybe, 3 or 4 quads per channel.
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Old 12-24-2009, 10:26 AM
 
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Can I buy your pacman please?
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Old 12-24-2009, 01:52 PM
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BIASLIGHTING what it is,how it works. cinemaquestinc.com
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Old 12-25-2009, 12:48 PM
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Old 05-12-2015, 05:32 AM
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omg I've never heard of this before but it looks really cool. I especially like the blue backlights. I came here to figure out what kind of tv to buy since my old one died, and I'm learning so much. Still haven't bought a new tv yet. It's all so confusing, but I'm definitely going to backlight it. The rope light seems like a fairly good, cheap solution.
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Old 05-12-2015, 06:56 AM
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I've been using the Ikea Dioder LED backlight similar to this one http://www.ikea.com/us/en/catalog/products/50192365/ for about 6 years. It's awesome and hasn't ever given me issues. It has a little clicker button I mounted to the backside of my AV cabinet, so i just reach down on the back edge and click it once to turn the lights on and cycle through the colors to pick one that suits the mood of the movie. Everyone who's been over to watch a movie has loved it.
jazzycat likes this.
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Old 05-12-2015, 08:08 AM
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Lightbulb

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Originally Posted by jazzycat View Post
omg I've never heard of this before but it looks really cool. I especially like the blue backlights....
Back lighting a video display with colored light will perceptually subtract that color from the picture. Such practice may be a "fun" gimmick, but counter-productive to authentic program reproduction. It is analogous to wearing colored glasses to the cinema or an art exhibition.

'How Viewing Environment Conditions Can Corrupt Or Enhance Your Calibration'

http://www.avsforum.com/avs-vb/showthread.php?t=849430
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Old 05-12-2015, 08:57 AM
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Quote:
Originally Posted by GeorgeAB View Post
Back lighting a video display with colored light will perceptually subtract that color from the picture. Such practice may be a "fun" gimmick, but counter-productive to authentic program reproduction. It is analogous to wearing colored glasses to the cinema or an art exhibition.

'How Viewing Environment Conditions Can Corrupt Or Enhance Your Calibration'

http://www.avsforum.com/avs-vb/showthread.php?t=849430
Yeah, I considered putting backlighting behind my Samsung plasma to help enhance the blacks and to give a more aesthetically pleasing/visually exciting viewing area. However, when I went over to see how a friend of mine had set theirs up and did some testing, I noticed a real difference in the actual perceived picture where colours seemed a lot less faithful. So I gave up on the idea. I do really like the look though, so I am considering still putting backlighting for when the television is not in use.
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Old 05-12-2015, 09:30 AM
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I have a desk lamp with a daylight ccfl bulb beyond and pointed towards the back of my tv. I did this mainly because I had lasik last year and my low light vision now has some haloing that causes some ghosting type crap on white text/objects on black/dark backgrounds and this helps that and it also as already known, makes black look better and increases perceived contrast and sharpness. Even if I had the same low light vision I had before, I'd still want to use the bias lighting and have no idea why I haven't been using it all these years since I used to back in the early 2000s. I guess it has ot do with the fact I moved onto front projection for my critical/movie watching so I just didn't care as much.
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Old 05-12-2015, 12:08 PM
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Quote:
Originally Posted by GeorgeAB View Post
Back lighting a video display with colored light will perceptually subtract that color from the picture. Such practice may be a "fun" gimmick, but counter-productive to authentic program reproduction. It is analogous to wearing colored glasses to the cinema or an art exhibition.

'How Viewing Environment Conditions Can Corrupt Or Enhance Your Calibration'

http://www.avsforum.com/avs-vb/showthread.php?t=849430
Would backlighting with normal light subtract from the picture? I can see how using colored light might. It still looks cool.
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