Ibn al-Haytham (latinized Alhazen[8] full name Abū ʿAlī al-Ḥasan ibn al-Ḥasan ibn al-Haytham أبو علي، الحسن بن الحسن بن الهيثم; c. 965 – c. 1040) was an Arab[9][10] mathematician, astronomer, and physicist of the Islamic Golden Age.[11] He made significant contributions to the principles of optics and visual perception in particular, his most influential work being his Kitāb al-Manāẓir (كتاب المناظر, "Book of Optics"), written during 1011–1021, survived in the Latin edition.[12] A polymath, he also wrote on philosophy, theology and medicine.[13]