Word: zworykin
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Television has had one of the oddest histories of any human enterprise. An established technological fact, mainly accomplished by U. S. research, it refuses in the U. S. to emerge from the laboratory. With either the Zworykin iconoscope (RCA-Victor) or the Farnsworth cold-cathode dissector tube "high-definition" images equal in clarity to home cinema and 6 by 8 inches in size can be transmitted. Blond, young Philo Taylor Farnsworth, who rose from obscurity with the help of San Francisco bankers, has leased his system to England and Germany where broadcasting is in government hands. Currently television is regularly...
Last summer the skilled hands of RCA-Victor Co.'s Dr. Vladimir Kosma Zworykin fashioned the closest known approximation of the human eye (TIME, July 10). Designed for television, the device was called the iconoscope. On 20 square inches of mica were 3,000,000 dots of photosensitive material. Light falling on the mica set up an electromagnetic tension which was discharged by an electron beam. The changing pattern of this discharge could be transmitted by radio. At the receiving end the image was reproduced on a fluorescent screen by a reversal of the iconoscope's operating principle...
Last week plump-cheeked Dr. Zworykin announced that his iconoscope was ready for use as the "eye" of a powerful ultramicroscope. Its field of operation extends on both sides of the visible light spectrum -up to 10,000 angstrom units on the infra-red range, down to 1,000 on the ultra-violet.* This point on the ultraviolet side is 2,000 units lower than in other ultramicroscopes. If organisms never seen by human eye do exist in the filtrable viruses of common colds and infantile paralysis, they might be detected by light of such short wavelength. Light of longer...
Externally Dr. Zworykin's iconoscope resembles a big electric light bulb with a long neck. The bulb part is 8 in. in diameter, the whole 16 in. long. Inside are, in order from bulb to butt, 1) an ordinary motion picture camera lens which focuses on 2) a 5x4 in. sheet of thin mica. The mica is coated with microscopic particles of a secret light-sensitive material (3,000,000 particles. Dr. Zworykin computes). In the bulb's neck is 3) a small, efficient, oscillating cathode tube which sends a slim beam of electrons weaving over the light...
...receiver of this radio system Dr. Zworykin calls a kinescope. It looks like the iconoscope. In the tube's neck is an oscillating cathode tube which weaves a pulsating beam of electrons over a fluorescent screen. Under the electron impacts the screen glows and thus shows the original iconoscoped scene...