Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 6367932 | Apparatus and method for visual field testing An apparatus for ocular is provided wit means (2, 3) for displaying targets (T1, T2) means (4) for tracking eye movement and means (5) for controlling the display of targets (T1, T2) on a screen. A method comprises arranging the control means (5) to chore... | 04/09/2002 |
| 5838420 | Method and apparatus for ocular motility testing Apparatus for ocular motility testing comprising, an item of headgear 5 onto which is mounted: gaze-detection means 25 for determining the visual axis directions of one or both eyes of an observer 14 wearing the headgear in relation to a reference primary... | 11/17/1998 |
