- The eye has a photoreceptor that picks up certain wavelengths of light, and then sends a signal to the hypothalamus.
- The hypothalamus then secretes a hormone that tells our body to rest.
- A new bio-bulb would help people see at night without messing with their body's natural mechanisms.
As late-night workers and long-distance travelers already know, shifting time zones or work periods throws the body's natural clock out of whack.
Even regular folks often find it nearly impossible to get a restful sleep for several hours after sitting under bright lights after the sun has gone down (some call it the Fenway Park phenomena).
Now a Florida inventor is testing a new LED bio-bulb that could regulate the body's circadian rhythm by helping control the production of melatonin, the body's sleep hormone that tells us when it's nighttime.
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This can be done by eliminating a small segment of the blue wavelength of light (around 465 to 485 nanometers) produced by the lightbulb, according to Fred Maxik, founder and chief technology officer of Lighting Science Group Corp., a Satellite Beach, Fla., firm.