High reflectance

High reflectance

The ability of materials to effectively reflect the sun’s energy. Roof materials with high reflectance stay cooler in the sun, reduce energy costs, improve occupant comfort, and reduce the urban heat island effect.
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The foam-like microstructure created during the solvent casting process gives high reflectance without the use of pigments.
Optics include a die-formed high reflectance white powder coat reflector, a flush mounted acrylic snap-in lens, and proprietary batwing optics for vertical light distribution.
It is generally used to measure fiber links and locate fiber breaks, end-to-end loss, high reflectance and optical return loss.
This device achieves cooler sample temperatures through a patented "cool mirror" that has very high reflectance in the UV and near-visible wavelengths, while attenuating reflectance in the longer wavelength visible and IR portions of the solar spectrum.
The use of parts formed from different materials, in devices lead to differences in the optical appearance of side by side components due to the high reflectance of sapphire.
UF Grade also has high reflectance performance which will help to increase brightness of LED lighting.
Apart from a considerable cost and limited supply of this material, it has additional problems: high reflectance of this materials reduces contrast ratio, optical properties degrade rapidly below 50 ohms/sq, which limits the size of display produced using ITO without degradation of performance.
According to Ticona, they are able to withstand the demanding LED requirements for reflector resins with regard to heat and light stability, including high initial reflectance, high reflectance stability under heat and light, excellent silicone adhesion, processability and mechanical properties.
3 Linear, RGB LEDs mounted to the backside of the mullions light a high reflectance white wall 3 ft behind the glass.
Hence, it was concluded that in case of high reflectance shades, smaller overhangs result in larger shade areas, consequently rejecting a larger portion of solar radiation, and reducing peak cooling demand.
The company says that Baytec Sil 100 contains no petroleum solvents, is low odor and very low VOC, meets LEED guidelines as a low-emitting and high reflectance material, is Title 24 compliant, and has been extensively tested to meet industry standards such as UL 790, ASTM D-6694-01, and Miami-Dade County (Florida) Product Control Approval.
Furthermore, in the short wave range (450 to 495nm) that is vital for lighting LEDs, the product exhibits a high reflectance rate of 80 percent, compared with gold's reflectance rate of 50 percent.