Kamāl al-Dīn al-Fārisī
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Kamal al-Din Hasan ibn Ali ibn Hasan al-Farisi or Abu Hasan Muhammad ibn Hasan was a Persian Muslim scientist. He made two major contributions to science, one on optics, the other on number theory. Fa
Kamal al-Din al-Farisi's autograph manuscript in Optics, Tanqih al-Manazir, 1309 A.D., Adilnor Collection.
Kamāl al-Dīn al-Fārisī: Primary and secondary rainbow construction, around 1300. From Revision of the Optics of Ibn al-Haytham (Tanqīḥ al-Manāẓir li-Ḏawī'l-Abṣār wa'l-Baṣāʾir). The point light source is on top. A partial explanation, with the rays in red and black producing the primary and secondary rainbow, respectively.
The colophone of Al-Basa'ir fi 'ilm al-Basa'ir, copied in 731 H.E. from Kamal al-Din's original manuscript, states that Kamal al-Din's real name is al-Hasan ibn Ali ibn al-Hasan and he has completed the work in 708 H.E. The scribe states also that Kamal al-Din died on 19 Dhu al-Qa'dah 718 H.E. (12 January 1319)
Gravure originale du compas parfait par Abū Sahl al Qūhī
Qutb al-Din al-Shirazi
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Qotb al-Din Mahmoud b. Zia al-Din Mas'ud b. Mosleh Shirazi was a 13th-century Persian polymath and poet who made contributions to astronomy, mathematics, medicine, physics, music theory, philosophy an
Kamāl al-Dīn al-Fārisī
…scientist. He made two major contributions to science, one on optics, the other on number theory. Farisi was a pupil of the astronomer and mathematician Qutb al-Din al-Shirazi, who in turn was a pupil of Nasir al-Din Tusi. According to Encyclopædia Iranica, Kamal al-Din was the most advanced Persian author on optics…
Epicyclic planetary model in a medieval manuscript by Qutb al-Din al-Shirazi.
a manuscript copy of Shirazi's al-Tuhfa al-Shahiya, 15th century
Shirazi's Tomb in Tabriz, Charandab