If you are among the people who think that it is not possible to detect infrared light, then you must consider observations made by a team of scientists. According to them, human eye can detect infrared light under the right conditions.
The visible spectrum of light is largely considered to stretch from red to violet. Wavelengths beyond those ranges were thought to be invisible. According to previous studies, wavelengths like infrared are impossible to observe with naked eyes.
But according to a new study, there may be some cases where infrared light can be observed. The team of scientists had performed some experiments with cells cultivated from the retinas of both people and mice and found that both humans and mice can detect infrared light.
Washington University School's Vladimir J. Kefalov and some other researchers of the university conducted the study to find how the retina could detect infrared light. They found that quick pulses of laser light could start a 'double hit' of light on the cells of retina, and make it visible.
According to Kefalov, he has his colleagues are working to develop a new tool that would allow researchers to discover more about human eye. Kefalov said that if everything goes fine, they will develop the instrument that will stimulate particular parts of the retina in order to determine if it's working correctly. The study has been documented in the Proceedings of the National Academy of Sciences in its online edition on December 1.
As per the researchers, they were surprised when they found that some of the researchers had started seeing flash of green light during the study. After doing some experiments, they came to know that sometimes human eye can detect the light that was previously supposed to be invisible.
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