The invention relates to a group of novel electrochromic compounds. More specifically, it relates to benzazoles and condensed azole compounds substituted with one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
本发明涉及一组新型电致变色化合物。更具体地说,它涉及用一个或多个
吡啶鎓环取代的苯并唑和缩合唑类化合物,以及将这些化合物用作可变透射率介质来制造光学产品,如眼科镜片。