The University of Arizona

Richard John Koshel

Linan Jiang

Stanley K Pau

Rachel Nicole Ulanch

Methods, apparatus and systems that relate to high performance UV disinfection in a HVAC system with integrated concentrator optics are described. One example device for air disinfection includes a housing structured to include an interior volume and having an air inlet at a first end of the housing and an air outlet at a second end of the housing, the housing providing an air passage through the interior volume between the air inlet and the air outlet. The device filter includes at least one light source positioned proximate to the interior volume and at least one nonimaging optics element positioned proximate to the interior volume.

High performance ultraviolet disinfection in a heating, ventilation, and air conditioning system with integrated concentrator optics

A photovoltaic ('PV') module may comprise an array of freeform micro-optics and an array of PV cells. The PV module may be a flat panel with a nominal thickness smaller than the length and width of the flat panel. An array of lenses may be embedded in an array substrate. The lenses may be coupled to light pipes. The lenses may concentrate light through the light pipes to multi-junction cells. Diffuse light may be transferred through the array substrate to a silicon cell. The lenses and light pipes may be manufactured using a molding and drawing process.

Micro-scale concentrated photovoltaic module

A photovoltaic ('PV') module may comprise an array of freeform micro-optics and an array of PV cells. The PV module may be a flat panel with a nominal thickness smaller than the length and width of the flat panel. An array of lenses may be embedded in an array substrate. The lenses may be coupled to light pipes. The lenses may concentrate light through the light pipes to multi junction cells. Diffuse light may be transferred through the array substrate to a silicon cell. The lenses and light pipes may be manufactured using a molding and drawing process.

Systems and methods spectrally and radiometrically calibrate an optical spectrum detected with a color-image sensor of an optical spectrometer. When the color-image sensor includes a Bayer filter, the red-peaked, green-peaked, and blue-peaked spectral responses of the color filters forming the Bayer filter may be used to identify unique spectral signatures in the red, green, and blue color channels. These spectral signatures may be used to associate calibration wavelengths to the pixel locations of the color-image sensor where the spectral signatures are observed. A fitted model may then be used to associate a wavelength to each pixel location of the color-image sensor. These systems and methods account for translational shifts of the optical spectrum on the color-image sensor induced by optical image stabilization, and thus may aid optical spectrometry utilizing a digital camera in a smartphone or tablet computer.

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Tucson, AZ, United States of America

Richard John Koshel