1943 A. Koestler iii. 86 He stared at the ceiling of the dim room on which the shutters projected a streaky shadow-pattern of grey and white ribs.
1967 E. Short i. 32 Shadow patterns. If any three-dimensional object is suspended between a bright light and a sheet of white card or paper, and the object revolved, a series of patterns will be made by the shadow of the object on the card.