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1941 - four parallel beams of light, an inch apart, are sent across from one upright to the other, and detected by photoelectric cells

JUMP MEASURED BY ELECTRIC EYE APPLICATION

E&MP 94.031

Photo Electric Cells

June 10, 1941

Jump measured by electric eye application developed by General Electric engineers and tried out with great success at Schenectady track meet.

Four parallel beams of ligh[sic], an inch apart, are sent across from one upright to the other, and detected by photoelectric cells.

The photoelectric cells tell which, if any, beams are interrupted by the jumper's body.

PHOTO 3528


Original Caption by Science Service
© General Electric Co.



National Museum of American History

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