Main articles: Ultraviolet germicidal irradiation and Germicidal lamp A low-pressure mercury vapor discharge tube floods the inside of a hood with shortwave UV light when not in use, sterilizing microbiological contaminants from irradiated surfaces.

Garland C, Garland F, Gorham E (1992). "Could sunscreens increase melanoma risk?". Am. J. Public Health. 82 (4): 614–615. doi: 10.2105/AJPH.82.4.614. PMC 1694089. PMID 1546792. Lynch, David K.; Livingston, William Charles (2001). Color and Light in Nature (2nded.). Cambridge: Cambridge University Press. p.231. ISBN 978-0-521-77504-5. Archived from the original on 31 December 2013 . Retrieved 12 October 2013. Limits of the eye's overall range of sensitivity extends from about 310 to 1050 nanometers

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For any type of assistance - and easy and accessible self-service - this is what we have put in place for you to ensure you get yourself up and running, as well as for any troubleshooting during or after: Photolithography is used in the manufacture of semiconductors, integrated circuit components, [102] and printed circuit boards. Photolithography processes used to fabricate electronic integrated circuits presently use 193nm UV and are experimentally using 13.5nm UV for extreme ultraviolet lithography.

Fluorescent dyes and inks. Manufacturers add special fluorescent chemicals to dyes and inks for a variety of applications, including marking items discreetly , verifying the authenticity of an item, or detecting leaks . Kids also use these ‘invisible pens’ to write secret notes to each other. Light-emitting diodes (LEDs) can be manufactured to emit radiation in the ultraviolet range. In 2019, following significant advances over the preceding five years, UV‑A LEDs of 365nm and longer wavelength were available, with efficiencies of 50% at 1.0W output. Currently, the most common types of UV LEDs are in 395nm and 365nm wavelengths, both of which are in the UV‑A spectrum. The rated wavelength is the peak wavelength that the LEDs put out, but light at both higher and lower wavelengths are present. The vacuum ultraviolet (V‑UV) band (100–200nm) can be generated by non-linear 4wave mixing in gases by sum or difference frequency mixing of 2 or more longer wavelength lasers. The generation is generally done in gasses (e.g. krypton, hydrogen which are two-photon resonant near 193nm) [42] or metal vapors (e.g. magnesium). By making one of the lasers tunable, the V‑UV can be tuned. If one of the lasers is resonant with a transition in the gas or vapor then the V‑UV production is intensified. However, resonances also generate wavelength dispersion, and thus the phase matching can limit the tunable range of the 4wave mixing. Difference frequency mixing (i.e., f 1 + f 2 − f 3) has an advantage over sum frequency mixing because the phase matching can provide greater tuning. [42]Skin Cancer. The most common types of skin cancer are found in parts of the body that see the most sun. UV rays from the sun as well as man-made devices such as Tanning Beds and UV lights can increase the risk of skin cancer. Event Admission (Hand Stamps). Attendees will appreciate having a hand stamp to allow admission into an event that is only visible under UV light . Being otherwise invisible, the stamp doesn’t have to be scrubbed off the next day. They are also much more difficult to forge or transfer to another person. Svobodová AR, Galandáková A, Sianská J, etal. (January 2012). "DNA damage after acute exposure of mice skin to physiological doses of UVB and UVA light". Arch. Dermatol. Res. 304 (5): 407–412. doi: 10.1007/s00403-012-1212-x. PMID 22271212. S2CID 20554266. Non-Destructive Materials Testing (NDT). UV lights can be used as a tool to test infrastructure projects such as bridges and tunnels for structural integrity, reliability, and safety . Aircraft , auto, and marine industries also use UV lights for NDT.

What is UV radiation and how much does it increase with altitude? (Report). U.S. National Oceanographic and Atmospheric Administration. Archived from the original on 3 January 2017. Cronin, Thomas W.; Bok, Michael J. (15 September 2016). "Photoreception and vision in the ultraviolet". Journal of Experimental Biology. 219 (18): 2790–2801. doi: 10.1242/jeb.128769. hdl: 11603/13303. ISSN 1477-9145. PMID 27655820. S2CID 22365933. Archived from the original on 24 June 2022 . Retrieved 23 June 2022. Korb, Alex (17 November 2011). "Boosting your serotonin activity". Psychology Today. Archived from the original on 1 August 2017. Technology for VUV instrumentation was largely driven by solar astronomy for many decades. While optics can be used to remove unwanted visible light that contaminates the VUV, in general; detectors can be limited by their response to non-VUV radiation, and the development of solar-blind devices has been an important area of research. Wide-gap solid-state devices or vacuum devices with high-cutoff photocathodes can be attractive compared to silicon diodes. Inferior UV flashlights are your #1 enemy. You'll be underwhelmed and it will leave you wanting for more UV power. We came along in 2015, we listened, we took action.Scott, K.J.; Wills, R.R.H.; Patterson, B.D. (1971). "Removal by ultra-violet lamp of ethylene and other hydrocarbons produced by bananas". Journal of the Science of Food and Agriculture. 22 (9): 496–7. Bibcode: 1971JSFA...22..496S. doi: 10.1002/jsfa.2740220916. UV laser diode: 375nm center wavelength". Thorlabs. Product Catalog. United States / Germany. Archived from the original on 15 December 2014 . Retrieved 14 December 2014.