The present invention relates to specific photochromic h-annellated benzo[f]chromene derivatives and their use in synthetic resins of all types, especially for ophthalmic applications. In particular, the present invention relates to photochromic compounds derived from benzo[f]chromenes, which in the open form have especially long-wave absorption maxima making it possible to obtain violet to blue tints when used in phototropic glasses.
本发明涉及特定的光致变色 h-annellated苯并[f]
铬烯衍
生物及其在各类合成
树脂中的应用,特别是在眼科应用中的应用。特别是,本发明涉及从苯并[f]
铬烯衍生的光致变色化合物,这种化合物在开放形式下具有特别长的波长吸收最大值,因此当用于趋光性
玻璃时,可以获得紫色至蓝色的色调。