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Because the film was sensitive to UV only, it could be easily handled under normal incandescent lamps with no need for a darkroom, although for archival storage it was placed in UV-protective boxes. The developed film could be stabilized or “fixed” by overall re-exposure to UV light which would destroy the remaining diazonium compound which ...
Interference UV Blockers are usually built into anti-reflective interference thin film stacks, and focus on maximizing the UV reflection below the visible light boundary. Industrially-available sol-gel processes offer up to 84% UV block, [ 13 ] while magnetron-sputtered AR/UV-Blocking layers can block up to 92% [ 14 ] [ 15 ] with no adverse ...
Films can be made to record non-visible ultraviolet (UV) and infrared (IR) radiation. These films generally require special equipment; for example, most photographic lenses are made of glass and will therefore filter out most ultraviolet light. Instead, expensive lenses made of quartz must be used.
Basic colorless clear films reject (absorb) some UV radiation up to 380 nm, and depending on the manufacturer, UV inhibitors are added to the polyester, with specialist films offering protection to 400 nm. Tinted films are necessary for protection to 500 nm. [7] Window films filter out over 99% of UV rays at 380 nm, reducing the main factor in ...
Photosensitive glass vase. Photosensitive glass, also called photostructurable glass (PSG) or photomachinable glass, is a glass in the lithium-silicate family of glasses onto which images can be etched using shortwave radiations, such as ultraviolet. [1]
In reflected UV photography the subject is illuminated directly by UV emitting lamps (radiation sources) or by strong sunlight. A UV transmitting filter is placed on the lens, which allows ultraviolet radiation to pass and which absorbs or blocks all light and infrared radiation. UV filters are made from special colored glass and may be coated ...
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