David Brewster (1781 - 1868)

Sir David Brewster KH PRSE FRS FSA(Scot) FSSA MICE (11 December 1781 – 10 February 1868) was a Scottish physicist, mathematician, astronomer, inventor, writer and university principal. Most noted for his contributions to the field of optics, his inventions include the kaleidoscope and an improved version of the stereoscope.