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An L39 UV filter with a 55mm filter thread
UV filters are compounds, mixtures, or materials that block or absorb ultraviolet (UV) light. One of the major applications of UV filters is their use as sunscreens to protect skin from sunburn and other sun/UV related damage. After the invention of digital cameras changed the field of photography, UV filters have been used to coat glass discs fitted to camera lenses to protect hardware that is sensitive to UV light.
UVfilters are compounds, mixtures, or materials that block or absorb ultraviolet (UV) light. One of the major applications of UVfilters is their use...
Food and Drug Administration (FDA) started classifying already approved UVfilter molecules into three categories: those which are generally recognized...
manipulation filters are named for the radiation they pass; green and infrared filters pass their named colors, but a UVfilter blocks UV.) It can be left...
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, so the...
land if most of that light were not filtered out by the atmosphere. More energetic, shorter-wavelength "extreme" UV below 121 nm ionizes air so strongly...
isophorone. Contained in 45% of U.S. sunscreens, it is used as a chemical UVfilter. The salicylic acid portion of the molecule absorbs ultraviolet rays with...
UV-blocking and UV-passing filters; the latter are much less common, and more usually known explicitly as UV pass filters and UV bandpass filters. Neutral density...
mitochondrial dysfunction. Palau has banned the sale and use of three reef-toxic UVfilters including octocrylene in its Responsible Tourism Education Act of 2018...
unwanted wavelengths. Examples of UV transmission filters are the Baader-U filter or the StraightEdgeU ultraviolet bandpass filter, both of which exclude most...
well as some glass surface treatments can also filter some of the damaging ultra-violet radiation (UV) and heat (NIR). Artworks that require protective...
Because oxybenzone is the least lipophilic of the three most common UVfilters, it is the least likely to end up trapped in the stratum corneum and the...
products that contain a list of ten different chemicals, including the UVfilters octyl methoxycinnamate, oxybenzone and octocrylene, with fines of US$1...
Bisoctrizole is what is termed is a hybrid UV absorber, which has been described as an organic UVfilter produced in microfine organic particles (< 200 nm)...
Tinted films are necessary for protection to 500 nm. Window films filter out over 99% of UV rays at 380 nm, reducing the main factor in fading. However, additional...
that the use of nano titanium dioxide (95–100% rutile, ≦5% anatase) as a UVfilter can be considered to not pose any risk of adverse effects in humans post-application...
3-hydroxykynurenine, that together provide UV protection and aid in enhancing visual acuity. The use of kynurenine as a UVfilter is consistent with its photostability...
with a UVfilter on top to keep the non-visible ultraviolet radiation from exposing the silver-halide crystals, which are naturally sensitive to UV light...
et al. (February 2016). "Toxicopathological Effects of the Sunscreen UVFilter, Oxybenzone (Benzophenone-3), on Coral Planulae and Cultured Primary Cells...
alternative settings are commonly used- without/with uvfilter to control better the effect of uv brighteners within the paper stock. Samples are usually...
glass filter over or around the bulb. Alternatively, lamp bulbs may be doped or coated to filter out the UV radiation. With adequate filtering, a halogen...
et al. (February 2016). "Toxicopathological Effects of the Sunscreen UVFilter, Oxybenzone (Benzophenone-3), on Coral Planulae and Cultured Primary Cells...
miscible with alcohols, esters, and vegetable oils. It was approved as UVfilter in the USA by the FDA in 1961, but it is not commonly used in cosmetic...
use a single 6V PX28 battery. Accessories for Minox 35 include: UVfilter, ND filter, lens hood, eveready leather case, and dedicated electronic flash...