摘要:
The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials having two-core viologens and the use of these two-core viologens as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
摘要:
Systems, methods and ophthalmic lenses for image display of a virtual image, such as display of a holographic image. An ophthalmic lens is configured to optimize visualization of the displayed virtual images.