本文介绍了无形双光眼镜片的形成原理、设计方法和计算数据。同时也介绍了无形双光眼镜片某些特殊加工方法,诸如无形双光眼镜的熔凝加工,子镜片及其主镜片凹坑的加工,以及对熔凝毛坯的加工等。文中还专题介绍了万向视野双光镜(UNIVIS),这对全面了解无形双光眼镜是有益的。 This article introduces the formation principle, design method and calculation data of invisible bifocal ophthalmic lens. At the same time also introduces some special processing methods of invisible bifocal ophthalmic lenses, such as the melting process of invisible bifocal glasses, the processing of sub-lenses and their main lens pits, and the processing of fused blank. The article also introduced the universal vision binocular (UNIVIS), which is beneficial to understand the invisible bifocals.