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- science control definitionSunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials. The black-tie awards ceremony was held on 15 June at the Royal Armouries in Leeds, at the centre of the country’s great east-west glass manufacturing corridor – where nine out of ten of the UK’s largest glass manufacturers have production sites. Awarded a UK patent, Senior’s PURe® range of energy-efficient aluminium windows and doors is the first on the UK market to benefit from an enhanced thermal barrier manufactured from expanded polyurethane foam (PUR). Traditionally used in cladding and insulation products, the innovative use of PUR as a thermal barrier in windows and doors gives the PURe ® range the potential to achieve U-values as low as 0.71W/m2 K when calculated as a commercial CEN standard window and 0.93W/m2 K when calculated as a CEN standard door. The new architecture also means the pages on the content rich site now load in milliseconds, ensuring that potential customers visiting the site are engaged for long enough to register their interest. “Our entry for this award is a thank you to them for their vision and willingness to do things differently. It’s also a thank you to BEIS for the courage and far-sightedness they have shown in working constructively with industry to fit their approach to the needs and circumstances of UK manufacturing.”
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