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Guillermo González Camarena was just 23 years old in 1940 when he obtained US Patent No. 2,296,022 protecting his invention of a "Trichromatic" system for color television transmissions.

The method is sometimes referred to as a "field sequential" system. Basically, a motor-driven disk, consisting of three segments in the primary colors - red, blue and green - rotates behind the camera lens. The resulting film is monochromatic (black and white). If it is replayed fast enough through an identical disk, precisely synchronized with the original filming, then each separate single-color "filtered view" is retained by the eye long enough to complete a full-color image.

The system became the first color TV system to be approved by the U.S. Federal Communications Commission, and in 1950 was accepted as the "standard" system. Its major disadvantage was that the signals used to transmit the images did not allow a good picture to be obtained on any TV that was only capable of displaying black-and-white images.

But how did a 23-year-old come to invent the world's first color TV system?

González was born in Mexico's second city, Guadalajara, on February 17, 1917. His family moved to Mexico City when he was two years old. At...

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