Stiles-Crawford effect

Stiles–Craw·ford effect

noun \ˌstīlz-ˈkrȯ-fərd-\

Definition of STILES-CRAWFORD EFFECT

: an optical phenomenon in which light passing through the center of the pupil is perceived as more intense than light passing through the periphery of the pupil

Biographical Note for STILES-CRAWFORD EFFECT

Stiles, Walter Stanley (1901–1985), and Crawford, Brian Hewson (1906–1991), British physicists. Stiles spent almost all of his career as a research scientist at the National Physical Laboratory in Great Britain. He was the author of numerous papers on illuminating engineering and physiological optics. He published book-length studies on thermionic emission (1932), the science of color (1967), and the mechanisms of color vision (1978). The Stiles-Crawford effect honors their names.