Philo Taylor Farnsworth (August 19, 1906, Beaver, Utah, United States – March 11, 1971, Salt Lake City, Utah, United States) was an American inventor and pioneer of telecommunications. He is best known for inventing the world’s first fully electronic television system and is therefore regarded as one of the “fathers of television.” Throughout his life, he obtained more than 300 U.S. and foreign patents for electronic and mechanical devices.

Philo Taylor Farnsworth was born on August 19, 1906, in a log cabin in Beaver City, Utah, United States, built by his grandfather, Mormon leader Brigham Young. From an early age, he displayed a passion for science and read Popular Science magazine and science books. His primary interests included molecular theory and motors. He was also fascinated by new technologies of the 1920s such as the Bell telephone, Edison gramophone, and mechanical television based on the Nipkow disk.

When he was twelve, his family moved to a farm near Rigby, Idaho, and his first encounter with electricity there became a turning point. Driven by curiosity about electricity, by the time he reached high school he had successfully modified most of the household electrical appliances to run on electric power. Even in high school, he conducted studies on advanced topics such as molecular theory, electrons, and Einstein’s theory.

At the age of fifteen in 1922, Farnsworth developed the idea for a fully electronic television system after recognizing the limitations of the mechanical systems of the time. He sketched for his high school chemistry teacher the concept of an “Image Dissector” vacuum tube that would convert images into electrical signals by controlling the speed and direction of fast-moving electrons. This drawing later served as crucial evidence in his patent dispute with RCA, proving he was the original inventor of the idea.

In 1924, he enrolled at Brigham Young University but was forced to drop out at the end of his second year after his father’s death, to help support his family. He then established a radio repair business in Salt Lake City. While working on fundraising campaigns, he met business partners George Everson and Leslie Gorrell, whom he convinced to invest in his vision of electronic television. With this financial backing, Farnsworth took his first step toward realizing his invention by establishing his own research laboratory in San Francisco in 1926.

Philo Taylor Farnsworth designed the world’s first fully electronic television system at the age of fifteen to overcome the limitations of the mechanical television systems of the era. At the time, mechanical scanning television systems, such as those used by John Logie Baird, relied on rotating disks with holes (Nipkow disks) and were limited in image transmission speed and resolution, producing small and flickering images on screens.

Farnsworth conceived this idea at age fourteen while plowing a field on the family farm: he realized that just as furrows created by plowing were arranged in horizontal lines, an image could be transmitted by scanning it with a beam of electrons. This insight envisioned a completely electronic method of image scanning, replacing mechanical components with an electron beam.

To realize this vision, in 1922 he drew a schematic for his high school chemistry teacher Justin Tolman of a camera tube called the “Image Dissector”, designed to convert optical images into patterns of electrical charges. In 1926, with financial support from investors George Everson and Leslie Gorrell, Farnsworth began working at the Crocker Research Laboratories in San Francisco.

The historic milestone occurred on September 7, 1927. At age twenty-one, Farnsworth successfully produced the world’s first fully electronic television image using two key electronic components he named the “Image Dissector” (camera tube) and the “Oscillite” (picture tube). Initially, the system could only transmit silhouettes, but Farnsworth continuously improved it to achieve clearer images.

He received a patent for the fully electronic television system in 1930. That same year, Vladimir Zworykin, head of RCA’s television project, visited Farnsworth’s laboratory. Although Zworykin had developed his own “Iconoscope,” Farnsworth’s Image Dissector proved more effective. RCA’s president David Sarnoff immediately recognized the technology’s importance and offered Farnsworth $100,000 to purchase all his patents, but Farnsworth rejected the offer.

This refusal led RCA to file a patent infringement lawsuit against Farnsworth in 1932, claiming his patent violated Zworykin’s earlier application. However, Farnsworth won the case in 1935 by presenting as evidence the original 1922 schematic drawn by his high school teacher Justin Tolman. Although RCA lost the patent battle, it recognized the future of Farnsworth’s technology and in 1939, contrary to its own corporate policy, agreed to pay him royalties for television patents covering scanning, focusing, synchronization, contrast, controls, and power. This agreement provided Farnsworth with approximately one million dollars in income.

^{George Everson, Richard C. Patterson and Philo Taylor Farnsworth (Center) (}Library of Congress⁾

Philo Taylor Farnsworth’s inventions extended beyond modern television, paving the way for electronic advancements that made possible television broadcasts from the Moon and satellite transmissions. Throughout his life, he obtained more than 300 U.S. and foreign patents for electronic and mechanical devices.

His innovations beyond television include:

• Cold Cathode Ray Tubes: He invented the first cold cathode ray tubes.

• Electronic Microscope: He developed the first primitive electronic microscope.

• Defense and Surveillance Technologies: During World War II, he worked on the foundations of systems that used radio waves for navigation, later known as radar. He also invented night vision systems using black light and an infrared telescope.

• Other Patented Inventions: He also held patents for inventions in various fields, including air traffic control systems, baby cribs, and gastroscopes.

• Farnsworth Television and Radio Corporation: In 1938, he founded his own company, Farnsworth Television and Radio Corporation, to advance television development. The company struggled to remain competitive during World War II and was sold to ITT in 1949.

• Nuclear Fusion Research: From the 1950s until the end of his life, his primary interest was nuclear fusion as a means of producing clean and limitless energy. In 1965, he received a patent for a series of tubes he called “Fusors,” capable of producing fusion reactions lasting 30 seconds.

Philo Taylor Farnsworth laid the foundations of television and modern electronics but died before completing all his work, on March 11, 1971, from pneumonia. At the time of his death, he held more than 300 U.S. and foreign patents for electronic and mechanical devices.

Even after his death, Farnsworth was honored nationally for his role in the development of television:

• National Inventors Hall of Fame: He was inducted in 1984 for his Television System patent (U.S. Patent No. 1,773,980).

• U.S. Postal Stamp: Recognized as one of the “fathers of television,” Farnsworth was honored with a U.S. Postal Service stamp bearing his portrait in 1983.

• Statue in the National Statuary Hall: As a native of Utah, a statue representing him is displayed in the National Statuary Hall in the U.S. Capitol Building in Washington, D.C. The statue was sculpted by James R. Avati in 1990.