PHOTOCHROMIC PLASTIC OBJECT WITH PERMANENTLY INCREASED CONTRAST

摘要

The invention relates to a photocromic plastic object, characterised by a permanently increased contrast relative to that of photocromic plastic objec ts available according to the state of the art. In other words, the photocromic plastic object according to the invention displays an improved contrast in the stationary state and i n every phase, even during the darkening as well as during the lightening. Said plastic object can be used for as photocromic spectacle glass, in particular for sports glasses.