Kaleidoscope Paints Television Screen
Kaleidoscope pictures have gone on the air. Just as musical selections fill interludes in sound broadcasting, the eye-pleasing patterns of light entertain “lookers-in” between television features from the National Broadcasting Company’s station W2XBS. To transform a kaleidoscope from a child’s plaything into a scientific novelty of 1940, engineers first photograph a simple design upon movie film. The film then passes through a studio projector tube lined with mirrors, which multiply the design eight times to produce a symmetrical image. Two auxiliary projectors make a frame for the pictures, and superimpose any desired words or symbols upon the designs.
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TELEVISION on the JOB
It extends human vision beneath seas, into furnaces and throughout factories.
TELEVISION is adding overalls to its dress clothes. Its sleeves are rolled-it is ready to go to work!
To most of us, television has been a promise of armchair entertainmentâ€”a chance to have choice seats at boxing bouts, football games, news events and stage plays without budging from the budget or the living room. That phase of television is here, but television’s future goes far beyond the mere prospects of animated quiz shows and soap operas you can see.
Television, like radio, is a versatile tool. A relatively small percentage of the radio waves that flash around the earth today carry music and comedy to our loudspeakers. Most of them have more important missions. Radio helps us go places and do business. Without it, large-scale scheduled air travel would be impossible, sea travel would be slowed, crime prevention hampered, news coverage cut down, and international business and diplomacy limited.
Giant Television Images
By H. WINFIELD SECOR
ULYSSES A. SANABRIA is one of the foremost geniuses in Television today. Mr. Sanabria is only 24 years of age, yet this youthful electrical wizard has demonstrated to the engineering fraternity and to the press, the largest television images thus far shown. The author was present at the New York demonstration when television images six and one-half feet square were exhibited and they were surprisingly clear. At the New York Radio Show, television images 10 by 14 ft., have been promised by Sanabria. The following description of the Sanabria system for producing these gigantic television images is authentic and was obtained in a recent interview with Mr. Sanabria.
AT the Radio Trade Show held in Chicago last spring, and also at a recent demonstration given to engineers and members of the press in New York City, Ulysses A. Sanabria startled his audience by showing surprisingly clear television images six and one-half feet square. Many of those present took advantage of the inventor’s invitation to stand in front of the television pickup, and thus have the images of their faces projected on the glass exhibition screen, much to the enjoyment of their friends. Considerable merriment was caused when some of the wittier ones, who posed in front of the photo-cells, made a few remarks which were picked up by a microphone and sent through an amplifier to a loud speaker below the glass screen on which the moving images of the speaker appeared.
Behind the Split Screens of TV
By Jan and Bob Jensen
IF MR. KIPLING had been sitting in the gilt-edged Hollywood audience that March evening in 1954 when the Academy of Motion Picture Arts and Sciences presented the Oscars in their 26th annual awards ceremony, he would have had to eat his words that “East is East and West is West and never the twain shall meet.” They not only met, they talked to each other. On the large television-projection screen at the back of the golden bronze-draped stage, Donald O’Connor, master of ceremonies on the West Coast, was brought face to face with Fredric March on the East Coast, and the many thousands of miles lying between their respective noses had been eradicated by the magic of the communications era in which they live, so that the two were presented in one picture not only to the select audience of 2800 in the Pantages Theater in Hollywood, but to millions of TV viewers throughout the nation.
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This is pretty remarkable. Apparently the best way to filter the results of a radar, even in as late as 1955 was to actually build the display CRT so that it just cut off part of the rear signal and fit in more of the forward signal. As opposed to some sort of tunable electronics that would allow you to change the scale and proportion displayed. This seems sort of wasteful since they obviously have front and rear signals that go out to 50 miles but are perfectly happy throwing that data away…
Off-Center Radar Picture Tube Gives Added Forward Vision
Ships can “see” 50 miles ahead and 30 miles behind with a special radar cathode-ray tube. General Electric, which developed it, calls it the “far-sighted, nearsighted radar indicator tube.” Engineers built the first tube by taking a standard 17-inch TV picture tube and installing a different phosphor screen and electron gun. Then they bent the glass neck of the tube five degrees so that the electron gun would give an off-center indication on the screen. The tube, used on Navy cargo vessels, gives added forward vision without the addition of a larger tube and a more expensive radar set.
Television Our Next INDUSTRIAL BOOM
In the television laboratories a new industrial giant awaits the signal to step forth, bringing new miracles in science.
An Interview With PHILO T. FARNSWORTH – Vice President, Farnsworth Television Incorporated.
by DONALD G. COOLEY
“NINETEEN hundred and thirty-six will be the year of the big television explosion!”
You have the word of Philo T. Farnsworth for thatâ€”and as the founder of Farnsworth Television, Incorporated, as a pioneer television experimenter, and holder of basic patents on electronic image scanning which will be the basis of commercial television, the prediction comes from the one man best qualified to make it.
Electronic Color Television is Here
ALL-ELECTRONIC color television, which RCA engineers have achieved in a form that does not make black-and-white equipment obsolete, is a complete departure from the mechanical color transmissions of recent years. Mirrors and photoelectric cells replace moving parts.
In a recent demonstration at Princeton, N. J., pictures were broadcast with a new color-slide camera. Its developers plan laboratory transmission of live-action studio scenes by mid-1947, outdoor action scenes late in 1947, theater-size pictures in 1948.
Sharp reintroduced this idea last year with the Dual View, an LCD that allows two viewers to see different images depending on their viewing angle. Though frankly I think the glasses make this one look much cooler. Even the dog has a pair.
Two-Headed TV Set Displays Two Different Shows at Once
Two people can enjoy different TV programs at the same time with a new set. The experimental Du Mont Duoscopic is actually two receivers in one cabinet, with two chassis, two sets of controls and two viewing tubes mounted at right angles (inset). A semitransparent mirror superimposes the two pictures, but each viewer sees only one show by watching through polarizing spectacles. Earphones handle the sound.