NOVEL SPECTRALLY SELECTIVE WINDOW FILMS BASED ON MULTIPLEXED HOLOGRAPHY

IT IS PLANNED IN PHASE I TO DEVELOP ADVANCED MULTIPLEX HOLOGRAPHIC FILMS (MHF) WHICH CAN PROVIDE THE ADVANTAGES OF DAYLIGHTING AND SOLAR CONTROL SIMULTANEOUSLY. THESE FILMS WILL UTILIZE NEW HOLOGRAPHIC TECHNIQUES FOR BEAM SHAPING AND REFLECTIONS OF THE NEAR ULTRAVIOLET (UV) SOLAR SPECTRUM. THE RESULTING MHFS WILL BE SPECTRALLY SELECTIVE WITH HIGH TRANSMISSIONS IN THE VISIBLE SPECTRAL RANGE AND WITH HIGH REFLECTIVITY IN BOTH NEAR INFRARED AND NEAR UV SPECTRAL REGIONS. IN ADDITION THE BEAM SHAPING CAPABILITY OF THE PLANNED MHFS WILL PROVIDE MOST EFFICIENT AND UNIFORM DAYLIGHTING WITHOUT NEGATIVE TRADEOFFS. THEY CAN ALSO BE RECORDED ONTO FLEXIBLE SUBTRATES AND THEN ADHERED TO A SINGLE GLAZING. THE MHFS CAN BE PRODUCED USING COST-EFFECTIVE MANUFACTURING TECHNIQUES LEADING TO THE MOST EFFICIENT AND ECONOMICAL WINDOW FILMS WITH HIGH COMMERCIALIZATION POTENTIAL.