DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
6J11.00 | Physiology | | |
6J11.10 | retinal fatigue - color disc | PIRA 1000 | |
6J11.10 | retinal fatigue disc | Oi-12 | A red
light placed behind a rotating disc with a slot at the border of half black
and half white appears different colors depending on the direction of rotation. |
6J11.10 | retinal fatigue - color disk | L-94 | A
disk with a notch, half black, half white is spun in front of a red lamp.
The lamp appears green or red depending on the direction that the disk spins. |
6J11.11 | psychological colors | 6-2.8 | A black and white patterned disc appears colored when rotated. |
6J11.20 | visual fatigue | PIRA 1000 | |
6J11.20 | visual fatigue | L-61 | Stare at a bright spot and a complementary color appears when the spot is turned off. |
6J11.22 | after image and judgement of size | 6-2.2 | The retinal fatigue image seems to change size. |
6J11.30 | persistence of vision | PIRA 1000 | |
6J11.30 | persistence of vision | 6J11.30 | |
6J11.30 | persistence of vision | 6-2.7 | A wheel with circles with phase shifted dots painted on the rim is spun in strobed light. |
6J11.32 | colored fans | AJP 43(1),113 | Paint a four bladed fan different colors and illuminate with a strobe. |
6J11.33 | tubeless television | 6-2.9 | Wave a wand at the point a projected image is focused. |
6J11.35 | integration of light pulses | Oi-9 | If light intensity from a strobe that appears continuous at 3000 Hz is cut in half, it will appear continuous at about 1700 Hz. |
6J11.36 | fluorescence of retina | L-60 | Shine an UV source with a visible filter toward the class and notice the luminous haze that covers the field of view. |
6J11.37 | jarring the eye | Oi-10 | Stamp your foot while watching a free running oscilloscope. |
6J11.40 | subjectivity of colors | 6-2.4 | A red spot projected on the wall looks orange or brown if it is surrounded by white or black. |
6J11.42 | Mach disk | 6-2.11 | A spinning disk appears to have light and dark rings where it should be uniform. |
6J11.44 | relative black and white | 6-2.1 | A bright light shining on a black screen looks the same as a filtered light shining on a white screen. |
6J11.46 | most sensitive to green light | Oi-11 | A stick moved up and down in a projected spectrum will appear to bend at the green light area. |
6J11.50 | impossible triangles | PIRA 1000 | |
6J11.50 | impossible triangles | Disc 21-12 | An optical illusion that depends on viewing angle. |
6J11.51 | the square that ain't there | TPT 28(8),562 | A cutout of a square in black paper has the illusion of being a white square on top of black paper. |
6J11.52 | optical illusions | 6-2.3 | Compare the height to the width of a projected hat. |
6J11.55 | perception | AJP 42(7),531 | Many cases of optical perception are discussed along with some audio and misc. phenomena. |
6J11.60 | depth perception - special case | AJP 33(12),1085 | Apparatus for demonstration of depth perception when due solely to the geometrical disparity of binocular vision. |
6J11.70 | color blindness | PIRA 1000 | |
6J11.70 | color blindness | L-62 | Use standard color-blindness slides or charts to test the students. |