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By shining a UV flashlight around your house, you can see where UV flashlights, which shine ultraviolet light, help make it easier to spot hard-to-see stains on furniture, carpets, and walls.
A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave ultraviolet light and very little visible light. [ 1 ] [ 2 ] [ 3 ] One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV ...
Low power consumption of semiconductors introduce UV disinfection systems that utilized small solar cells in remote or Third World applications. [2] By 2019, LEDs made up 41.4% of UV light sales, up from 19.2% in 2014 [3] The UV-C LED global market is expected to rise from $223m in 2017 to US$991m in 2023. [4]
Natural light exposure has been associated with faster cognitive processing speeds and enhances working memory capacity. [62] Additionally, UV exposure plays a role in motor learning and object recognition memory. Moderate UV exposure enhances cognitive functioning through a specialized glutamate (GLU) biosynthetic pathway in the brain. [63]
A portrait taken using only UV light between the wavelengths of 335 and 365 nanometers. Photographic film responds to ultraviolet radiation but the glass lenses of cameras usually block radiation shorter than 350 nm. Slightly yellow UV-blocking filters are often used for outdoor photography to prevent unwanted bluing and overexposure by UV rays.
A low-pressure mercury-vapor discharge tube floods the inside of a biosafety cabinet with shortwave UV light when not in use, killing microbes on irradiated surfaces. Ultraviolet germicidal irradiation (UVGI) is a disinfection technique employing ultraviolet (UV) light, particularly UV-C (180–280 nm), to kill or inactivate microorganisms ...
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