General Optics

A1-41: DRAWING PUZZLE - INTERSECTING RODS
A1-42: DRAWING PUZZLE - HALF CUBE
A1-43: CROSSING RODS
L1-03: LIGHT BULB WITHOUT VACUUM
L1-05: PERSISTENCE OF A FILAMENT
N3-03: COLOR MIXING WITH DICHROIC SPOTLIGHTS
O2-22: STROBOSCOPE AND FALLING WATER
O4-06: OPTICS OF A GLASS ROD
O4-08: GREEN TOMATO
O4-23: LIGHT PISTON
O4-31: TRAPEZOIDAL WINDOW
O4-32: SIZE OF COLORED FIGURES
O4-33: IMPOSSIBLE TRIANGLE
O4-34: IMPOSSIBLE CRATE
O4-35: WALK-IN BOX
O4-36: PERSPECTIVE BOX - CHAIR
O4-51: ANAGLYPH
O4-52: POLARIZATION 3D EFFECT
O4-53: STEREOGRAMS - 3D IMAGES FROM RANDOM PATTERNS
O4-54: VIEWMASTER