Kitab al-Manazir is a famous book on optics written by Ibn Haytham, who is also known in the Latin world as Alhazen.
This work laid the foundation for the modern science of optics and explained vision, reflection, and refraction scientifically.
Ibn Sina (Avicenna) was a renowned philosopher and physician but did not write this book.
Ibn Rushd (Averroes) was a philosopher and commentator on Aristotle’s works.
Ibn Zuhr was a notable physician but not linked to optics.
Therefore, the author of Kitab al-Manazir is Ibn Haytham.