16 April 2016 Cellulose nanocrystal and poly[di(ethylene glycol) adipate] blend for tunable lens
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In these days, consumer electronics and medical device for optical diagnosis are minimalized and mobilized. The focusing part is one of crucial parts of optical diagnosis systems to reduce the size and weight. Thus, demand for tunable lens that change the focus itself is increased. To meet the demand, many tunable lens has been studied by utilizing smart materials that responded under mechanical, magnetic, optical, thermal, chemical, electrical or electrochemical stimuli. This paper reports a cellulose nanocrystal (CNC) and poly[di(ethylene glycol) adipate] (PDEGA) blend that is able to respond under electromechanical stimulus. The preparation of CNC/PDEGA and its characterization are illustrated and its actuation behavior is tested . Because the material has high dielectric constant and high reflection index, it is good candidate material for tunable lens.
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Hyun-U Ko, Hyun-U Ko, Hyun Chan Kim, Hyun Chan Kim, Yaguang Li, Yaguang Li, Sang Youn Kim, Sang Youn Kim, Jaehwan Kim, Jaehwan Kim, "Cellulose nanocrystal and poly[di(ethylene glycol) adipate] blend for tunable lens", Proc. SPIE 9802, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2016, 98020Z (16 April 2016); doi: 10.1117/12.2219653; https://doi.org/10.1117/12.2219653

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