TY - JOUR
AU - Cornell, H.
AB - VISUAL PERFORMANCE Research basis for IES illumination levels Wherein Dick Blackwell builds the FTS, introduces the Landolt ring , and establishes VLs C. L. Crouch and H. Cornell Naval signa lmen in World Wa r I. perched Sc ientifica lly. Dr. Bla ckw ell was on ship's bridge wings to nash messages to st udying th e fundam enta ls of pur e visual surrounding convoy vessels in rad io silence. per for mance -th e a bility to see de ta il of hard ly could have known t hey wer e a lso vari ous cont ra sts a nd sizes under cha nging levels of illum inati on durin g differin g pe­ pla ying a role in light ing science. In fact . th ey were inspiri ng an historic post-wa r riods of exposure t ime. A trul y funda menta l exercise in t he system for det ermining how much light we need toda y to sec effectively . science of viewing. the visual'signa l-rea ding T ha t system came into being because task. was relati vely elementa ry. Tasks Dr. H. Richa rd Blackwell. then a resear ch found in 
TI - Research Basis for Ies Illumination Levels
JF - Lighting Design + Application
DO - 10.1177/036063257700701110
DA - 1977-11-01
UR - https://www.deepdyve.com/lp/sage/research-basis-for-ies-illumination-levels-gIDaQpVPEM
SP - 32
EP - 36
VL - 7
IS - 11
DP - DeepDyve
ER -