orgeron chapter 1 tv history part 1 (ms)
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Tanna Orgeron PowerPoint on TV History part 1 LMP middle schoolTRANSCRIPT
History of TelevisionTV PRODUCTION
Tanna Orgeron
Anything on television or in film is based off of the idea of:
TV History
Persistence of Vision
Persistence of Vision
The ability of the brain to retain an image a split second longer than the eye actually sees it.
Persistence of Vision
The ability of the brain to retain an image a split second longer than the eye actually sees it.
Persistence of Vision is the phenomenon that explains why the intervals between the successive images merge into a single image as our eyes hold one image long enough for the next one to take its place.
Toy Makers
Toy makers used this theory to create hand held machines that were the basis of film development.
Zoetrope
1834 by William Horner Circular drum
with slits.◦allows moments
of darkness.◦creates illusion
of movement.
In 1878 Edward Muybridge, an Englishman, needed to settle a $25,000.00 bet.
He believed that a galloping horse had all four feet off of the ground at the same time but others said that this was impossible.
The problem was that galloping hooves move too fast for the eye to see.
Film History
To settle the bet indisputable proof was needed. In an effort to settle the issue once and for all an experiment was set up in which a rapid sequence of photos was taken of a running horse.
When the pictures were developed it was found that the horse did indeed have all four feet off the ground for a split-second.
Film History
Why is this significant?
In doing this experiment they found out something else — something that becomes obvious from the illustrations of the horse on the left.
That discovery would soon make that $25,000 look like pocket change.
Film History
When a series of still images of a moving object are viewed at a certain speed the illusion of motion is created.
In the case of Muybridge’s series of still photos, when they were presented sequentially at 0.1 second intervals they created the illusion of continuous motion.
This is Muybridge’s actual footage
Film History
HISTORY OF TELEVISION
1897Karl Ferdinand Braun develops the Cathode Ray Tube.
HISTORY OF TELEVISION
1897A cathode ray tube is a vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface.
HISTORY OF TELEVISION
Two main inventors began working with electronic television and the Cathode Ray Tube
Vladimir ZworykinPhilo T. Farnsworth
HISTORY OF TELEVISION
1923Vladimir Zworykin develops the kinescope for picture display.
HISTORY OF TELEVISION
1927PHILO T. FARNSWORTH (1906-1971)
HISTORY OF TELEVISION
1927PHILO T. FARNSWORTH (1906-1971)
*1918 - At the age of 12, he built an electric motor and produced the first electric washing machine his family had ever owned.
HISTORY OF TELEVISION
1927PHILO T. FARNSWORTH (1906-1971)
*1918 - At the age of 12, he built an electric motor and produced the first electric washing machine his family had ever owned.
*1921 - Conceived the world's first all-electronic television at the age of 15.
HISTORY OF TELEVISION
1927PHILO T. FARNSWORTH (1906-1971)
*1918 - At the age of 12, he built an electric motor and produced the first electric washing machine his family had ever owned.
*1921 - Conceived the world's first all-electronic television at the age of 15.
*1927, Philo Farnsworth was the first inventor to transmit a television image comprised of 60 horizontal lines. The image transmitted was a dollar sign.
HISTORY OF TELEVISION
Who invented Television?
Vladimir Zworykin
OR
PHILO T. FARNSWORTH
HISTORY OF TELEVISION
1930 In 1930, the same year that Farnsworth won a patent for his all-electronic TV, his labs were visited by Vladimir Zworykin of RCA, who had invented a television that used a cathode ray tube and an all-electric camera tube.
HISTORY OF TELEVISION
Off to Court
This led to a patent battle that lasted over ten years.
During a patent lawsuit against RCA in 1935, his high school chemistry teacher, Justin Tolman, reproduced a drawing that Farnsworth, when he was just 14, had made on the blackboard at the school.
Farnsworth won the suit. Which resulted in RCA paying Farnsworth $1M for patent licenses.
***That is why FARNSWORTH is often credited with the invention of Television
HISTORY OF TELEVISION
Vladimir Zworykin
OR
PHILO T. FARNSWORTH