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Bias lighting can help reduce the eye strain caused by long exposures to TV screens and monitors in dark rooms, but it can also help make the grays and blacks on your screen seem richer.
Bias lighting is placed behind a TV to increase the ambient light around the screen without shining more light in the viewer’s eyes. This type of light helps reduce eye strain and fatigue by keeping our eyes from constantly trying to adjust to the bright light levels of the screen in contrast to the dark light levels of the room. Lifehacker alum Jason Fitzpatrick explains how some basic bias lighting cranks up the contrast on your screen using the optical illusion above as an example:
...our eyes perceive gray to be darker and richer when seen against a lighter background and more washed out when seen against a dark background. Illuminate the wall behind your screen and the same contrast illusion takes effect: the grays and blacks on your screen will appear richer and the contrast will seem stronger between them and the surrounding area... many people adjust the values for brightness and contrast to higher levels in order to get the intensity of color and black contrast they desire. If the environment you’re watching the screen in already helps boost the contrast and creates a better looking image on the screen then you can turn the brightness back down.
Fitzpatrick notes that keeping the brightness down on your screen will help extend the life of your TV as well. Screens are becoming a bigger part of our life as time goes on, so you might as well do what you can to save your eyes.
Item Type: Book Lights
Is Batteries Included: No
Is Batteries Required: Yes
Battery Type: Button Cell
Features: USB LED book light
Brand Name: Rybakov
Model Number: 5050SMD RGB USB LED strip light
Light Source: LED Bulbs
Power Source: DC
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