Andrey Gershun
Soviet physicist

Andrey Aleksandrovich Gershun (Russian: Андре́й Алекса́ндрович Ге́ршун, 22 October 1903 – 6 December 1952) was a Soviet physicist known for his work in photometry and optics, and was one of the founders of Vavilov State Optical Institute Hydrooptics Science School.
Biography
Andrey Aleksandrovich Gershun was born in 1903 in the family of Russian physicist Aleksandr L'vovich Gershun. After his father's death in 1915 he lived with his mother Rozaliya Feliksovna Gershun. In 1920 he entered the Physics Department of Peterburg State University and graduated in 1924. He then took a position in the State Optical Institute Photometric Laboratory under the direction of Professor S. O. Mayzel'.
In 1934, when the Photometric sector was organised at the State Optical Institute, Gershun took the position of the head of the Lighting Laboratory. His colleagues included well-known physicists M. M. Gurevich (head of the Photometric Laboratory), L. I. Demkin (head of the Color Laboratory), Lev Gassovsky (head of the Eye Laboratory) and G. K. Ustyugov (head of the Flood Lamp Laboratory). He also worked with D. N. Lazarev, G. N. Rautian, and A. A. Vol'kenshteyn. Their collaborations led progress at the institute in photometry, lighting technology, colorimetry, ophthalmology and the physiology of the eye. In 1937 Gershun received the Doctor nauk degree.
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