US2052133A - Television apparatus - Google Patents
Television apparatus Download PDFInfo
- Publication number
- US2052133A US2052133A US561512A US56151231A US2052133A US 2052133 A US2052133 A US 2052133A US 561512 A US561512 A US 561512A US 56151231 A US56151231 A US 56151231A US 2052133 A US2052133 A US 2052133A
- Authority
- US
- United States
- Prior art keywords
- disk
- kerr
- light
- scanning
- armature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
- H04N3/04—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving aperture also apertures covered by lenses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Definitions
- Fig. 7 is an enlarged sectional view showing It is well known to those familiar with the the details in the construction of a preferred art.that images can be converted into electrical form. of individual Kerr celladapted for use. in impulse modulations which may be transmitted connection with this invention;
- Fig. 8 is a, sectional. view which may be con- 10 where, through the medium. of so-called' televisidered as having been taken in a plane represion receiving. apparatus they can be converted sented bythe line 8-8 in Fig. 7. into images corresponding to the transmitted
- the reproduction of the images at the the. present invention is one in which the image receiving, station is generally accomplished by is produced directly by means of an apertured 15 means of a pulsating neon light associated with scanning disk of the usual type, which is pro a scanning disk, and since the quantity of such vided with novel means adapting the same to use light available.
- the apparatus employed, as illustrated in the 20, nification. It, therefore, becomes a primary obdrawings, consists in a general'way of a light ject of this invention to produce an apparatus of source. anda. scanning, disk of the conventional the class described whereby the televised'image Nipkow type which are associated wth means may be reproduced with light. of suflicient infor modulating or valvinga bright beam or area of tensity to permit its: magnification.
- the light valves which are preferably arranged in present invention contemplates the use of a. novel spiral. relation upon the scanning disk.
- type of-scanning disk which may be used with a In Fig. '1 the rectangle A' represents a small source of'lightof high intensity and is provided, intensely brightly illuminated, area on the back with light valves adapted to be controlled by side of a scanning disk I H! which is made of nonimpulsestfroma television receiverfor governconducting material.
- the light thrown on A 30; ing the quantity of light passing from the source comes preferably from an intense source of'light throughthe successive aperture of the. scanning shown in Fig.
- Fig. 21 is an end elevation illustrating the manture. nerof-utilizing the scanning disk shown in Fig. 1;
- One armature of each Kerr cell is connected
- Fig. 3 is an elevational View similar to Fig. 2, by means of the suitable conductor M9 to a corshowing a modified form ofscanning disk; responding segment I20.
- Fig.4 isan elevational viewillustrating a modiwhich is arranged around a shaft I22 which carfiedform' of Kerr-cell construction which may be ries the disk.
- Fig 6 isa sectional view illustrating the manner. of mounting the cellconstruction shown in illuminated area A is connected in the electric circuit.
- the other armature of each of the Kerr cells is connected to a common conductor I24.
- This common or bus conductor is connected through a conductor I24 to the metal shaft I22 which carries the scanning disk I I0.
- the brush I23 and shaft I22 are connected through conductors I25 and I26 to the output terminals of the secondary I21 of a transformer I28.
- High voltage polarizing batteries I29 Inserted in series in this secondary circuit are high voltage polarizing batteries I29, the purpose of which is to impress across the armature of Whichever Kerr cell happens to be in circuit a constant high voltage polarizing potential.
- the output of a television receiver amplifier (not shown) is led to the terminals of the primary I30 of the transformer I28.
- the action of the Kerr cell is to elliptically polarize the beam of light, which, from practical considerations, is the equivalent of rotating through a greater or less angle the plane of polarization of a polarized light beam passed therethrough.
- I provide in front of the scanning disk and directly opposite the polarizing Nicol prism II4, the analyzing prism I I4a whose axis is turned through 90 relative to the angle of the first.
- a projecting lens I 3I by means of which the small image which passes through the prism I Mat is enlarged and thrown upon a screen I32, so that the enlarged image is seen, preferably by reversed projection, by the eye of the observer at I33.
- Fig. 2 shows the synchronized motor I driving by means of the speed-multiplying gears I36I3'I the shaft carrying the scanning disk III] and commutator I2I.
- the shaft and circuit are shown grounded at E, (Fig. 5).
- I38 shows the 3 leads to the conventional three phase motor I35.
- I have shown no detailed means for synchronizing the scanning disk at the receiver with that at the distant transmitting station, inasmuch as I synchronize my receiver by any one of the well known and effecive synchronizing systems, and as this forms no part of my present invention it is unnecessary to go into detail regarding same at this time.
- Fig. 3 shows a somewhat improved method of using the Kerr cell and commutator, whereby troubles of contact commutation between a fixed brush and rapidly moving commutator segments are avoided.
- the individual Kerr cells III are arranged in spiral relationship as before, with the one armature of each connected to the common bus bar I24 which is connected, preferably by means of four conductors I40, 90 degrees apart, to the shaft I22 of the. scanning disk IIO, thence through the conductor to one terminal of the polarizing battery I29 and preferably grounded.
- the other terminal of this polarizing battery is led through the secondary I2I of the transformer I28, as described in connection with this same circuit as shown in Fig. l and thence through the conductor I25 to the insulated plate I4I.
- a single glass tube I50 arranged in the proper spiral form and carrying on its inner shorter face a common conductor, or armature, I5I Opposite this conductor and at an appropriate distance therefrom, and suitably spaced relative to each other, are a series of small armatures I52, a lead from each of which is brought out through the wall of the glass tube and led to its corresponding large-area plates I4I. These plates are arranged as shown in Fig. 3 about the circular periphery of the scanning disk.
- the common conductor I5I may be in the form of a metallic conductor deposited on the inside of the spiral formed glass tube, or may be located on the outside thereof, leaving only one set of armatures of the Kerr cell inside the glass tube.
- This glass tube is preferably not circular in cross section, but is flattened as shown in Fig. 5, which figure shows clearly the common armature I5I, in this case located outside of the glass tube on its bottom surface, and an individual short armature of the Kerr cell I52 10- cated inside of the glass tube with its lead I53 brought out through the flattened wall of the tube, sealed therethrough, and carried on to the conducting plate I42.
- the fixed condenser armature plate I4I is also shown in close proximity to the moving plate I42 and connected to the conductor I 25a.
- thebloser Inasmuch as the action of the Kerr cell to equivalently rotate the plane of polarization of the light beam is more effective thebloser together are the two armatures, or electrodes, of the Kerr cell, I prefer to locate the individual armature of :said' cell close to-th'e flattened bottom of the glass tube; '1' prefer to leave a gap of say ten one-thousandths of an inch between the armature I52 and the bottom wall of the tube, or between the two metal armatures of the Kerr cell in case both armatures are placed within the glass vessel.
- the most suitable metal for such Kerr cells armatures I have found to be gold, or some other suitable metal gold-plated. I prefer to use as my light rotating liquid in the Kerr cell a solution of nitro-benzol.
- Fig. 6 shows how the spiral formed glass vessel containing the multiplicity of Kerr cells is attached to one face of the insulating scanning disk.
- the glass tube is supported on the metal bracket I60 which is fastened by suitable means to one side of the scanning disk lllla.
- This figure shows a small aperture IBI drilled through the face of the scanning disk whereby a small beam of light is permitted to pass through the Kerr cell after having traversed the polarizing Nicol prism 2 I4. Having traversed the space between the armatures of the Kerr cell and having its plane of polarization more or less rotated by such passage the beam of light is shown thence passing through the analyzing Nicol prism 2l4a.
- Fig. 7 I have shown one form of small individual Kerr cell consisting of an elongated glass capsule I65 containing two metal armatures l l1a-l lBa, suitably separated, each with its lead brought out through an opposite end of the capsule, as shown by H9 and l24a.
- Reference numeral I66 indicates the extension of the glass envelope, whereby the Kerr cell is filled with nitro-benzol solution and then sealed off.
- These individual Kerr cells are then mounted in proper relationship around the scanning disk and the armature is connected respectively to the common conductor and to the individual commutator leads as described in connection with Fig. 1 or Fi 3.
- Fig. 8 shows a sectional view of one of these individual Kerr cells taken at right angles to the view shown in Fig. 7. It is here seen that the passage of the beam of light, indicated by arrow B, is through the small diameter of the glass envelope, and between the two armature plates of the cell. I so place these individual Kerr cells that the prolongation I66 is pointed towards the center of the scanning disk so that when the disk is in rapid rotation centrifugal force causes the fluid to completely fill the space between and surrounding the two armatures of the cell, leaving the air bubble (which is usually present after sealing off the glass capsule) in'the prolongation of the capsule.
- a scanning disk provided with a multiplicity of apertures; a Kerr cell at each of said apertures; means for rotatlrigsaid iscanning "disk; and. means for electrl callychargingthe successive Kerr cells from'a. television receiver during. the rotation. of said disk.
- Atelevision receiver a scanning diskpi ovid'ed with a;rnu-l'tiplicity of apertures; a Kerr cell at each of said apertures; a commutator on -sajid s'canning disk; means for connecting one armature of each Kerr cell to one segment of said commutator; a common conductor on said scanning disk; means for connecting the other armature of each Kerr cell to said common conductor; and means for connecting the common conductor and the successive segments of said commutator to the output of a television receiver.
- a scanning disk provided with a multiplicity of apertures; a Kerr cell at each of said apertures; a series of commutator segments on the periphery of said disk; means connecting one armature of each Kerr cell to one of said commutator segments; a common conductor on said disk; means for connecting the other armature of each Kerr cell to said common conductor; and means for connecting the successive commutator segments and the said common conductor to the output of a television receiver.
- a scanning device embodying; a scanning disk provided with a multiplicity of apertures arranged in a spiral path; a transparent tube containing a polarizing fluid mounted on said disk opposite the apertures therein; means for rotating said scanning disk; means for projecting a beam of polarized light toward said disk and over an area traversed by said apertures; a plurality of armatures on opposite sides of said tube adjacent said apertures; means for connecting said armatures with the output of a television receiver during the movement of said aperture through the illuminated area; and an analyzing prism for passing the light coming from said apertures.
- a scanning device embodying; a scanning disk provided with a multiplicity of apertures arranged in a spiral path; a Kerr cell mounted on said disk at each aperture; means for rotating said scanning disk; means for illuminating an area of said disk traversed by said apertures with a beam of polarized light; means for energizing each Kerr cell during its movement through the illuminated area from a television receiver; and an analyzing prism for passing the light coming from the successive Kerr cells.
- a scanning disk provided with a. multiplicity of spirally arranged apertures; means for rotating said disk; a spiral tube filled with polarizing fluid mounted on said disk opposite said apertures; armatures on opposite sides of said tube adjacent said apertures; and-means for connecting said armatures with the output of a television receiver during the movement of said apertures through a predetermined area.
- a rotatable scanning member provided with a plurality of scanning apertures, a Kerr cell for each aperture, a commutator, means connecting one armature of each Kerr cell to a corresponding segment of said commutator, a common conductor, means connecting the other armature of each Kerr cell to said common conductor, and means connecting the currentconductor and the segments of said commutator successively to the output of a television receiver.
- a rotatable perforated scanner having a plurality of scanning apertures and a plurality of sets of Kerr cell electrodes carried by said member, there being one 5 set of electrodes adjacent each of said apertures, and a polarizing medium between each set of electrodes.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE387958D BE387958A (xx) | 1931-04-24 | ||
NL38039D NL38039C (xx) | 1931-04-24 | ||
US561512A US2052133A (en) | 1931-04-24 | 1931-09-05 | Television apparatus |
GB10732/32A GB386183A (en) | 1931-04-24 | 1932-04-14 | Improvements in television receiving method and apparatus |
DEA65698D DE600191C (de) | 1931-04-24 | 1932-04-19 | Verfahren zur Zwischenaufzeichnung elektrisch fernuebertragener Bilder auf einem Film |
US606155A US2045570A (en) | 1931-04-24 | 1932-04-19 | Apparatus for receiving and projecting televised images in synchronism with sound |
FR735868D FR735868A (fr) | 1931-04-24 | 1932-04-23 | Procédé et appareil de réception d'images de télévision |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US532454A US2026872A (en) | 1931-04-24 | 1931-04-24 | Television receiving method and apparatus |
US561512A US2052133A (en) | 1931-04-24 | 1931-09-05 | Television apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US2052133A true US2052133A (en) | 1936-08-25 |
Family
ID=27063849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US561512A Expired - Lifetime US2052133A (en) | 1931-04-24 | 1931-09-05 | Television apparatus |
Country Status (6)
Country | Link |
---|---|
US (1) | US2052133A (xx) |
BE (1) | BE387958A (xx) |
DE (1) | DE600191C (xx) |
FR (1) | FR735868A (xx) |
GB (1) | GB386183A (xx) |
NL (1) | NL38039C (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2900443A (en) * | 1952-04-11 | 1959-08-18 | Armour Res Found | Magnetic recorder and reproducer for video |
-
0
- NL NL38039D patent/NL38039C/xx active
- BE BE387958D patent/BE387958A/xx unknown
-
1931
- 1931-09-05 US US561512A patent/US2052133A/en not_active Expired - Lifetime
-
1932
- 1932-04-14 GB GB10732/32A patent/GB386183A/en not_active Expired
- 1932-04-19 DE DEA65698D patent/DE600191C/de not_active Expired
- 1932-04-23 FR FR735868D patent/FR735868A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB386183A (en) | 1933-01-12 |
FR735868A (fr) | 1932-11-16 |
DE600191C (de) | 1934-07-18 |
BE387958A (xx) | |
NL38039C (xx) |
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