News tagged with infrared light

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Light assists in monitoring brain injuries

The information about alterations in cerebral perfusion is of crucial importance in treatment of patients with severe neurological injuries. The medical equipment used in clinics does not allow, however, ...

Aug 29, 2013
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Lymphatic fluid takes detour

When tumours metastasise, they can block lymphatic vessels, as researchers from ETH Zurich have discovered using a new method. The lymphatic fluid subsequently has to find a new path through the tissue. Such ...

May 20, 2013
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New technology shows diabetes

A new imaging method for the study of insulin-producing cells in diabetes among other uses is now being presented by a group of researchers at Umeå University in Sweden in the form of a video in the biomedical ...

Jan 21, 2013
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New blood test for early cancer detection developed

A simple blood test is being developed by researchers at Ben-Gurion University of the Negev (BGU) and Soroka University Medical Center in Beer-Sheva, Israel that may provide early detection of many types of cancer.

Feb 21, 2012
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Infrared

Infrared (IR) radiation is electromagnetic radiation whose wavelength is longer than that of visible light (400-700 nm), but shorter than that of terahertz radiation (100 µm - 1 mm) and microwaves (~30,000 µm). Infrared radiation spans roughly three orders of magnitude (750 nm and 100 µm).

Direct sunlight has a luminous efficacy of about 93 lumens per watt of radiant flux, which includes infrared (47% share of the spectrum), visible (46%), and ultra-violet (only 6%) light. Bright sunlight provides luminance of approximately 100,000 candela per square meter at the Earth's surface.

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