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A film is attached to the window frame to trap a pocket of air between the glass and the film, creating a double-glazed system with an insulating gap of still air. Thermal conductivity of still air is 0.024 W/(m.K) and much lower than that of glass (0.96 W/(m.K)). [1]
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 ...
The colorful film on these windows gives the building a unique appearance while providing privacy and insulation from the sun. Heat rejection films are normally applied to the interior of flat glass windows to reduce the amount of infrared, visible light, and ultraviolet (UV) radiation entering the windows.
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.
Due to the normally high solids content of UV coating/varnish the surface of the cured film can be extremely reflective and glossy. 80 lb text and heavier weights of paper can be UV coated, however, cover weights are preferred. UV can be applied on spot locations of the paper or by flooding the page.
Photo taken with daylight film. Photography based on visible fluorescence induced by UV radiation uses the same ultraviolet illumination as in reflected UV photography. However, the glass barrier filter used on the lens must now block all ultraviolet and infrared radiation, permitting only visible radiation (light) to pass. Visible fluorescence ...
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