ultraviolet filters

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• Ultraviolet photography — is a photographic process of recording images by using light from the ultraviolet (UV) spectrum only.OverviewLight which is visible to the human eye covers the spectral region from about 400 to 750 nanometers. This is the radiation spectrum used… …   Wikipedia

• Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …   Wikipedia

• Machine vision optical filters — are optical filters used in machine vision applications.Choosing the correct optical filter for machine visionMany of those developing machine vision applications know that considerable emphasis has been placed on choosing the correct lighting to …   Wikipedia

• Extreme ultraviolet Imaging Telescope — The Extreme ultraviolet Imaging Telescope (EIT) is an instrument on the SOHO spacecraft used to obtain high resolution images of the solar corona in the ultraviolet range. The EIT instrument is sensitive to light of four different wavelengths: 17 …   Wikipedia

• ultravioletdropout — ultraviolet dropout n. 1. The disappearance of the image of an extremely distant galaxy when viewed through an ultraviolet filter, caused by the absorption of ultraviolet rays by intergalactic hydrogen gas. 2. A technique that identifies… …   Universalium

• Sunscreen controversy — Sunscreen protects against two common forms of skin cancer, squamous cell carcinoma (SCC) and basal cell carcinoma (BCC), and several sunscreen ingredients protect against tumor development in photocarcinogenicity tests in mice. However, there is …   Wikipedia

• The Swift UVOT Photometric System — The Ultraviolet and Optical Telescope (UVOT) on the Swift Gamma Ray Burst Mission observes astronomical objects in its 17 by 17 arc minute field of view through one of several filters or grisms. The seven filters, which are similar to those on… …   Wikipedia

• Sunscreen — (also known as sunblock or suntan lotion [ Nassau County Health Department [http://www.jacksonville.com/tu online/stories/061408/nen 290072672.shtml Jacksonville online] ] ) is a lotion, spray or other topical product that absorbs or reflects the …   Wikipedia

• Sunglasses — For the Divine Brown song, see Sunglasses (song). Wearing sunglasses under direct sunlight: Large lenses offer good protection, but broad temple arms are also needed against stray light from the sides. Sunglasses or sun glasses are a form of… …   Wikipedia

• art conservation and restoration — Maintenance and preservation of works of art, their protection from future damage, deterioration, or neglect, and the repair or renovation of works that have deteriorated or been damaged. Research in art history has relied heavily on 20th and… …   Universalium

• Sulisobenzone — chembox new Reference= [ Merck Index , 11th Edition, 8963.] ImageFile=Sulisobenzone.png ImageSize=200px IUPACName=4 Hydroxy 2 methoxy 5 (oxo phenylmethyl)benzenesulfonic acid OtherNames= Section1=Chembox Identifiers CASNo=4065 45 6 PubChem=19988… …   Wikipedia