Optics > Color > Synthesis and Analysis
DCS# 6F10.45
COMPLEMENTARY SHADOWS
APPARATUS
three slide projectors
202-09-F
red, green, and blue filters
202-21-E4
12 cm diameter aperture slides
202-09-C2
DESCRIPTION
Project overlapping red, green, and blue beams of light on the screen to produce a large area of white light. Place something in the path of the three overlapping beams to show that its shadows appear in the complementary color of the blocked beams.