🛠️ Invention or technique

Trichromatic field-sequential colour TV system

Sistema tricromático secuencial de campo (televisión en color)

Date
1940 · confidence high
Place
Mexico City, Mexico
Credited to
Guillermo González Camarena
People
👤 Guillermo González Camarena1917–1965
Field
Communication

⚠️ Disputed: the sources disagree.

What it is

A synchronised adaptor of red, green and blue filter discs for transmitting colour images, patented in Mexico (1940) and the United States (1942). He later devised the simplified two-colour system used in the 1960s.

Peter Goldmark (CBS) developed an almost identical field-sequential system in 1940; the compatible NTSC standard eventually prevailed.

What it led to

  • experimental colour broadcasts in Mexico
  • colour television cameras on NASA missions (field-sequential principle)
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Sources✓ verified 2026-09-25