Abu Ali al-Hasan ibn al-Haytham
Born: 965 in (possibly) Basra, Persia (now Iraq) Died: 1040 in (possibly) Cairo, Egypt .
Ibn al-Haytham is sometimes called al-Basri, meaning from the city of Basra in Iraq, and sometimes called al-Misri, meaning that he came from Egypt. He is often known as Alhazen which is the Latinised version of his first name "al-Hasan". In particular this name occurs in the naming of the problem for which he is best remembered, namely Alhazen's problem:
Given a light source and a spherical mirror, find the point on the mirror were the light will be reflected to the eye of an observer.
Given a light source and a spherical mirror, find the point on the mirror were the light will be reflected to the eye of an observer.
Among of his greatest contribution in Physics are:-
* Mathematical evolution of spherical mirrors
* Rectilinear motion of light and use of lenses
* Refraction angle variations
* Magnifying effects of the plano convex lens
