Ferry-Porter law

Fer·ry-Por·ter law

(fār'ē pōr'tĕr),
the critical fusion is directly proportional to the logarithm of the light intensity.

Ferry,

Erwin S., U.S. physicist, 1868-1956.
Ferry-Porter law - the critical fusion is directly proportional to the logarithm of the light intensity.

Porter,

Thomas C., English scientist, 1860-1933.
Ferry-Porter law - see under Ferry
Porter law - a principle that critical flicker frequency increases with brightness of stimulus independent of stimulus wavelength.