An analytical approach was reported to correlate the polymer material upper service temperature (UST) to the onset of polymer material loss modulus as measured by DMTA. Increasing the lens refractive index range resulted in decreased optic sphericalaberrations that followed analytical predictions. The optical performance of a series of varied magnitude GRIN lenses, ranging from Δn = 0 to 0.185, was evaluated. A combination of extruded nanolayered GRIN film systems, comprised of five unique polymer materials, were combined to produce laminate optics comprised of a large internal refractive index gradient distribution, n = 1.445 – 1.630, without degradation of optical transmissive properties. Yin, Kezhen Ji, Shanzuo Fein, Howard Ponting, Michael Olah, Andrew Baer, EricĪ new polymer nanolayer gradient refractive index (GRIN) system with more robust thermal stability because of incorporation of a high glass transition temperature polyester, OKP4HT, was demonstrated. Evaluation of high temperature polymers in nanolayered films and gradient refractive index (GRIN) lenses Evaluation of high temperature polymers in nanolayered films and gradient refractive index (GRIN).
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