Browse Iranica FĀRSI, KAMĀL-AL-DIN TypeCross-referenceLast UpdatedMay 27, 2013PublishedJanuary 1, 2000 Print citeshare (d. 1320), the most significant figure in optics after Ebn al-Hayṯam. See FĀRESĪ, KAMĀL-AL-DĪN ABU’L-ḤASAN MOḤAMMAD.