US2367272A - Television method and apparatus - Google Patents

Description

I l I I I l I I I I I I I Jan. 16, 1945. H; HALDENIAN-JULIUS ,3

TELEVISION METHOD AND APPARATUS Filed Nov. 9, 1942 v 3 Sheets-:Sheet 1 1945- H. HALDEMAN-JULIUS 6 TELEVISION LIETHOD AND APPARATUS Filed Nov. 9, 1942 3' Sheets-Sheet 2 I I I I I I l I I I I I I I I I I I I Jan. 16, 1945. H.\ HALDEMAN-JUL|U$ 2,367,272

TELEVISION METHOD AND APPARATUS Filed Nov. 9, 142 s Sheets-Sheet a f .INVENTOR. nry f/a Zder/mn- Ju Zz'zqs I Patented Jan. 16, 1945 UNITED STATES PATENT OFFlCE TELEVISION METHOD AND APPARATUS Henry Haldema'n-Julius, Downey, Calif. Application November 9, 1942, Serial No. 465,019 (c1. us-c) 2 Claims.

greater or lesser degree in accordance with the strength or intensity of the light rays striking thereon. Electric currents delivered under the influence of said photo-electric cells to sound emitters or vibrators, of which there are as many as there are photo-electric cells, cause said vibrators to deliver sound waves constituting a multiplicity of tones. These tones, picked up by a microphone, are delivered at a distant point to a radio receiving apparatus having incorp like viewing rated therein a multiplicity of vibrators responding, sympathetically to, and only to, the corresponding vigrators of the sending apparatus.

The actuation of these vibrators sets up a muliplicity of electric currents in wires leading to a corresponding number of lights disposed behind a translucent screen, each light being shielded from its companion lights so that the whole screen, when it is illuminated, will present an image that is a duplicate of the image at the sending. station.

Means by which the foregoing objects are accomplished in a simple, emcient and economical way are illustrated in the accompanying drawings, wherein:

Fig. 1 is a view partly in section and partly in side elevation of a camera-like structure which constitutes the viewing element o the scene to be transmitted;

Fig. 2 is a view partly in side elevation and partly in section of a casing containing the sound emitters and microphone receiver, hereinafter described;

'Fig. 2' is a modification of Fig. 2;

Fig. 3 is a vertical, sectional view with parts in elevation, showing the radio receiving element at the receiving station, hereinafter described;

4 Fig. 4 in a front elevation of the structure of P18. 3; I Fig.

vibrators of Fig. 3;

Fig. 6 is a. view partly in edge elevation and partly in vertical section, of the translucent screen and associated lights; and

dis a diagrammatic view illustrating the and the loud speaker or the structure .,cally disposed with relation to the strenBth pitch.

Like numerals designate corresponding-parts throughout the several views of the drawings.

In the drawings, Fig. 1 designates a cameradevice or box-like formation, comprising a body 5. A small opening or a lens 6 is provided through which light rays from the scene to be transmitted, Pass to the rear wall of the structure where they impinge upon the photo-electric cells 1. These cells are disposed upon the arc of a circle that is concentric with the center of the lens or the opening 6 and they are preferably so disposed as to constitute an internal segment of a sphere, so that every photoelectric cell will be equi-distant from the center of the lens 6 and so that sharp images may be transmitted. Each cell I has its own individual electric wire 8, in which electric currents may be set up, which currents will vary in intensity in proportion to the intensity of the light rays impinging upon the several cells, it being clear that these will vary'as the lights and shadows of the images to be televised, vary. The wires 8 lead to a corresponding number of vibrators 9 disposed in such relation to the receiving microphone Id of a conventional radio broadcasting device that the .tones broadcast under control of the micro phone It will represent a combination of the tones delivered thereto by the vibrators 9. In Fig. 2* a modification of this structure is illustrated, wherein the vibrators 8" are concentrimicrophone lll'. Thus, each vibrator will deliver the proper volume of tone to the receiving microphone even though they deliver tones of varying quality or At the receiving station the radio waves broadcast from the sending station are picked up by a conventional type of receiving apparatus II, by which they are converted into waves of audio frequency and delivered to a standard speaker l3. V'brators ll of the character of those illustrated in Fig. 2, are stimulated to varying degrees and in accordance with the composition of the tones delivered from the speaker l3. Electrical conductors leading from the vibrators have currents set' up therein which vary in under the control of vibrators ll. These conductors lead to light bulbs I! that are disposed in the rear of a translucent screen it upon which cell-like structure them from each other and (mm one bulb from affecting meat with said bulb. Thus sharp images are secured, it being apparent that the images will be produced by the lights and shadows arising from the fact that some of the bulbs will be only slightly stimulated, others will be highly stimulated and some will not be lighted, at all. It will be seen that by the use of the method and apparatus hereindescribed, television may be efiected without scanning apparatus and sharp images may be had. The capability of the apparatus to produce these sharp images arises in large measure from the fact that all of the photoelectric cells I are equi-distant from lens 6, all of the vibrators 9 may be made equi-distant from every other bulb. As far as I am aware I am the first; to provide apparatus having these capabilities. Further, the principle of transferring images in space (radio, telephone, etc.) or time (recordings) or both by segregating differential light quantities into gradiated sound impulses of varied intensity and pitch is not to be interpreted as limited to the medium of radio for that sound transference. It is intended to have represented as an example of the several mediums by which all parts of an image may simultaneously be communicated in time and/or space. And it is intended that such pitches or tones and intensities of sound, which establish a relationship between the receiving or reproducing sets, will find use, by themselves or 9.07

2,367,272 translucent screen I 6 that is out of alignment companying music, voice, or any other kind of sound, in the other ways, such as wire transmission or sound recordings, that sound may be transferred or kept.

It is to be understood that the invention is not limited to the precise construction shown but that it includes within its purview Whatever changes may be fairly made within either the terms or the spirit of the appended claims.

Having described my invention, what I claim is 1. In apparatus 0! the character described, a translucent screen, abank of lights rearwardly of said screen and a cell-like housing for shielding said lights from each other, a plurality of vibrators, and means for lighting said lights to varying degrees ofv intensity under the influence of the vibrators, there being an individual vibrator for each 0! said lights.

2. The hereindescribed method of reproducing images at distant points by television which consists of converting light rays from the images to be transmitted to a multiplicity out sound tones which varyin accordance with the lights and shadows, transmitting the composite effect of said tones to a distant station as electrical *waves, converting said electrical waves back to a multiplicity of sound tones and illuminating an area with varying degrees of light under the influence of the variations of the sound tones at the-receiving station.

HENRY HALDEMAN-JULIUS.

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