State‐of‐the‐Art Neutral Tint Multichromophoric Polymers for High‐Contrast See‐Through Electrochromic Devices

Two new multichromophoric electrochromic polymers featuring a conjugated EDOT/ProDOT copolymer backbone (PXDOT) and a reversible Weitz‐type redox active small molecule electrochrome (WTE) tethered to the conjugated chain are reported here. The careful design of the WTEs provides a highly reversible redox behavior with a colorless red switching that complements the colorless blue switching of the conjugated backbone. Subtractive color mixing successfully provides high performing solution processable polymeric layers with colorless neutral tint switchable limiting states for application in see‐through electrochromic devices. Design, synthesis, comprehensive chemical and spectroelectrochemical characterization as well as the preparation of a proof‐of‐concept device are discussed.     

激光防护镜性能及其技术指标研究

本文根据激光辐射对眼的损伤规律，系统地分析了激光波长、发射方式、辐照度或辐照量、防护镜材料、结构类型及使用环境对激光防护镜防护性能的影响，经研究，并广泛征求意见后，确定了防护镜一般要求、光学性能、结构性能和环境适应性能共28项技术指标。