Optics

Johannes Kepler (27.12.1571-15.02.1630) was a German scientist and one of the creators of celestial mechanics.

John Kerr (17.12.1824-18.08.1907) was a Scottish physicist and a Fellow of the Royal Society (1890).

Karl Hermann Knoblauch (02.04.1820-30.06.1895) was a German physicist.

William Weber Coblentz (20.02.1873 —15.09.1962) was an American physicist and astrophysicist and a member of the National Academy of Sciences.

Walter Kossel (4.01.1888-22.05.1956) was a German experimental physicist.

Aimé Cotton (9.10.1869-15.04.1951) was a French experimental physicist and a member of the Paris Academy of Sciences (1923), and its president in 1938.

Torichan Pavlovich Kravets (22.03.1876 —21.05.1955) was a Soviet physicist and a corresponding member of the USSR Academy of Sciences (1943).

Kariamanickam Srinivasa Krishnan (4.12.1898-13.06.1961) was an Indian physicist and a member of the Indian Academy of Sciences.

August Adolph Kundt (18.02.1839-21.01.1894) was a German experimental physicist and a member of the Berlin Academy of Sciences (1888).

Johann Heinrich Lambert (26.08.1728-25.09.1777) was a German scientist and a member of the Berlin Academy of Sciences (1765).

Grigory Samuilovich Landsberg (22.01.1890—2.02.1957) was a Soviet physicist and an academician (1946; corresponding member 1932).

Max Felix Theodor von Laue (9.10.1879 —24.04.1960) was a German theoretical physicist and a member of the Berlin Academy of Sciences (1921).

Alexander Alexeyevich Lebedev (26.02.1893—15.03.1969) was a Soviet physicist and an academician (1943; corresponding member 1939).

Petr Nikolayevich Lebedev (8.03.1866—14.03.1912) was a Russian experimental physicist.

Vadim Leonidovich Levshin (28.01.1896-12.12.1969) was a Soviet physicist and a Doctor of Physical and Mathematical Sciences (1935).

Vladimir Pavlovich Linnik (born 6.07.1889) is a Soviet physicist and an academician (1939).

Gabriel Lippmann (16.08.1845-12.07.1921) was a French physicist and a member of the Paris Academy of Sciences (1886).

Jules Antoine Lissajous (4.03.1822-24.06.1880) was a French physicist and a corresponding member of the Paris Academy of Sciences (1879).

Humphrey Lloyd (16.04.1800-17.01.1881) was an Irish physicist and a member of the Royal Irish Academy, its president in 1846—51.

Eugen Cornelius Joseph Lommel (17.03.1837-19.01.1899) was a German optical physicist.