المناظر
Abdelhamid I. Sabra (1924-2013) was a professor of the history of science specializing in the history of optics and science in medieval Islam. He died December 18, 2013. Sabra provided English translation and commentary for Books I-III of Ibn al-Haytham's seven book "Kitab al-Manazir" ("Book of Optics"), written in Arabic in the 11th century.