УСТРОЙСТВО ОТКЛОНЕНИЯ ДЛЯ ЭЛЕКТРОННО-ЛУЧЕВОГО ИНДИКАТОРА

Изобретение относится к устройствам управления индикаторными приборами. Технический результат - уменьшение мощности, потребляемой при формировании обратного хода развертки в режиме формирования строк растра. В предлагаемом устройстве, содержащем схему вычитания, усилитель, отклоняющую катушку, резистор обратной связи и цепь обратной связи, указанный результат достигается введением двустороннего ключа, конденсатора, диода, второго усилителя, второй цепи обратной связи и транзисторного ключа. Уменьшение потребляемой мощности обусловлено тем, что на большую часть времени формирования обратного хода развертки первый усилитель отключен от отклоняющей катушки, а для изменения направления протекания тока используется явление резонанса в индуктивно-емкостном контуре. 2 ил.

Устройство для формирования токов в отклоняющей катушке электроннолучевой трубки

Формирователь тока электромагнитной развертки

Установка для электронно-лучевой сварки

Электростатическое отклоняющее устройство для электронно-лучевых приборов

Магнитная отклоняющая система

Оконечный каскад генератора строчной развертки

Устройство для сдвига изображения

Устройство отклонения пучка в электроннолучевых телевизионных передающих трубках

Генератор кадровой развертки

... 1.-ГЕНЕРАТОР КАДРОВОЙ РАЗВЕРТКИ , содержащий последовательно соединенные генератор пилообразного напряжения строчной частоты и интегратор, а также генератор п 1лообразного напряжения кадровой частоты, первый выход которого соединен с первым входом первого смесителя, выход которого является первым выходом устройства, отличающийся тем, что, с целью повышения качества растра за счет повышения линейности развертки, в него введены амплитудный фазоинверсный модулятор, разностный усилитель, инвертирующий усилитель , неинвертирующий усилитель, второй смеситель и переключатель, причем выход интегратора соединен с первым входом амплитудного фазойнверсного модулятора, выход которого соединен с первым входом разностного усилителя, а второй вход - с вторым входом разностного усилителя и выходом переключателя, первый и второй входы которого соединены соответственно с первым . и вторым выходами генератора пилообразного напряжения кадровой частоты, второй выход которого соединен также с первым входом второго ...

Способ изготовления секционированной отклоняющей системы

Электромагнитная отклоняющая система трехлучевого цветного кинескопа

Отклоняющая система бегущей волны

Устройство статического сведения электронных лучей в кинескопе

1. УСТРОЙСТВО СТАТИЧЕСКОГО СВЕДЕНИЯ ЭЛЕКТРОННЫХ ЛУЧЕЙ В КИНЕСКОПЕ с пленарным расположением прожекторов , содержащее установленную на горловине кинескопа магнитную систему , отличающеес  тем, чтО} с целью повьппени  качества сведени , магнитна  система выполнена в виде магнитного блока, образованного по крайней мере одним четырехполюсным магнитньм элементом, и магнитного блока, образованного по крайней мере одним шестиполюсным магнитным эле-, ментом, при этом каждый из указанных элементов вьтолнен с возможностью независимого поворота полюсов и peгулировани  величины магнитного пол . СГ) ел со 1. DEVICE OF STATIC INFORMATION OF ELECTRONIC RAYS IN KINESCOPE with a plenary arrangement of searchlights, containing a magnetic system installed on the neck of the kinescope, characterized in that, in order to improve the quality of the information, the magnetic system is made in the form of a magnetic unit formed in at least one four directions of 4 directions. and a magnetic unit formed by at least one six-pole magnetic element, each of these elements being complete with the possibility of independent gate poles and adjusting the magnitude of the magnetic field. SG) ate with

System zur automatischen Einstellung der Schirmgittervorspannung einer Bildröhre abhängig von einem für die automatische Vorspannungserzeugung abgeleiteten Schwarzpegelsignal

Konvergenzvorrichtung

Bildröhre mit Korrekturspule für die Erzeugung eines axialen Korrekturfeldes

Farbbildröhre mit verringertem Fleckwachstum

Colour TV CRT with triple electron gun system - has second correction deflection system between main and first correction systems with opposite effect

At least two electron guns of the triple system (3, 4, 5) are mounted outside the tube long axis. In front of the phosphor screen is mounted in a shadow mask (2). The three electron beams are treated by a main deflection system in two mutually orthogonal deflection direction. A correction deflection device is effective in one plane only and effects a predeflection of at least one electron beam. Between this correction deflection device and the main deflection system is provided a second correction deflection device, also effective in one plane only. The deflection direction of the two correction devices are in opposite senses. The predeflection capacity for the two non-axial electron beams are adjustable as to provide in the region of the main deflection system the desired direction and spacing from the tube axis.

VERFAHREN ZUR HERSTELLUNG EINER FARBBILDROEHRE

BLAULATERAL-SYSTEM

Farbbildwiedergaberoehre

Farbbildroehre

TOROIDAL ELECTROMAGNETIC DEFLECTION YOKE

... 1353623 Electron beam deflection systems RCA CORPORATION 27 May 1971 [3 June 1970] 17486/71 Addition to 1299491 Heading H1D A toroidally wound deflection yoke for providing beam deflection in a multi-beam colour TV picture tube (e.g. delta array) while maintaining substantial convergence over the raster comprises an annular core and a pair of orthogonally acting beam deflection windings symmetrically disposed about respective axes of symmetry, each winding comprising in each quadrant a first winding portion from the related axis of symmetry through a predetermined angular segment (e.g. # 1H ), a second winding portion extending through another angular segment (e.g. # 2H ), and a third winding portion extending through an annular segment (# 3H -# 4H ) angularly separated from that occupied by the second winding portion and disposed in the separation between second and third winding portions of the other windings. Convergence and registration can be maintained while ensuring minimum coma.

Improvements in or relating to variable inductances for use in line time base circuits of television receivers

... 740,532. Inductances. MULLARD RADIO VALVE CO,., Ltd. May 6, 1952 [May 22, 1951J. No. 12000/51. Class 38 (2). [Also in Group XL (c)] A line scan linearity control for a television receiver comprises an inductance coil 1 through which is passed the line scan deflecting current, the coil having a core 9 of ferromagnetic cubic ferrite material, a permanent magnet 3 being non-adjustably arranged adjacent the coil in such a position that the required shape of voltage waveform across the coil can be obtained by moving the core 9 into or out of the coil I. The clips 4 and 5 are of magnetic material and form polepieces for the magnet 3 so that when the core 9 is in the coil it is saturated thereby, thus only one side of the B-H curve is used, the resulting voltage across the coil can be used to correct for the voltage drop across the effective circuit resistance.

CONVERGENCE SYSTEM FOR A COLOUR TELEVISION RECEIVER

... 1387463 Colour cathode ray tubes MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 8 June 1972 26912/72 Heading H1D A convergence system for a plural beam colour cathode ray tube comprises dynamic and static convergence units and at least one blue lateral magnet 84 mounted on the neck 80 and rotatable by means of protrusions 85 engaging in spiral grooves of a rotatable plate 90. but without any linear movement of the magnet. In Fig. 16, a single magnet 85 is used in co-operation with a pole plate 88. In Fig. 4a (not shown), two diametrically opposed rotatable magnets are operated by a single grooved plate. In Fig. 12 (not shown), two rotatable magnets (54, 55), are disposed 120 degrees apart around the neck and each has a L-shaped pole plate (60, 61).

CATHODE RAY TUBES

COLOUR CATHODE RAY TUBE

... 1397804 Colour television tubes TOKYO SHIBAURA ELECTRIC CO Ltd 26 Sept 1972 44348/72 Heading H1D In a colour cathode ray tube employing the electron guns arranged in a line, the beams 12, 14, 16 from which pass through a magnetic convergence device and then through electromagnetic scanning coils, disturbance of the convergence fields by the scanning fields and non-uniform raster size is reduced by the inclusion in the convergence device of a pair of magnetic shielding plates 38, 40 between the central beam and the two side beams, which shielding plates are convex towards the central beam. In a modified arrangement (Fig. 3, not shown), the plates 38 and 40 are made of plane portions, their centres being stepped towards the central beam. As shown, the convergence magnetic field operators include dynamic convergence coils 48, 50 wound around the legs of a U-shaped core 42, and static convergence permanent magnets 56.

CONVERGENCE CORRECTION IN CATHODE RAY TUBES.

In a color cathode ray tube equipped with an in-line type electron gun and a deflection yoke designed to generate a uniform deflection magnetic field in which misconvergence is corrected by a dynamic convergence system, the in-line type electron gun has a focusing grid 15 which accommodates three pole pieces 17, 21, 22 of magnetic bodies, and a magnetic field generator 23, in the form of a ring shaped core 24 with four poles 24a, 24b, 24d, 24e each having coils 25a-f wound thereon, is disposed outside the cathode ray tube so as to apply 4-pole dynamic magnetic fields to the pole pieces, thus constituting a dynamic convergence system capable of correcting any misconvergence of the three electron beams in a vertical direction or a horizontal direction. As shown, the outer surfaces of the outer pole pieces 21, 22 are curved similar to the curved side of the oval hollow body of the focussing grid 15. The central pole piece 17 is a rectangular shaped body that is centred inside the hollow body ...

Colour picture tube

ELECTRON BEAM DEFLECTION APPARATUS

... 1367022 Cathode-ray tubes; travelling wave tubes TEKTRONIX Inc 4 Jan 1972 [24 Feb 1971] 38331/73 Divided out of 1367021 Heading H1D The disclosure is substantially identical to that of application (Specification 1,367,021) but the claims are directed to the provision of compensating plates (56, 58) which overlie the helices of a delay line type deflection system.

Display system

An electron source having a cathode and a permanent magnet having perforated channels extending between opposite poles of the magnet. Each channel forms electrons received from the cathode into an electron beam for guidance towards a target. The electron source has applications in a wide range of technologies, including display technology and printer technology.

Electron sources

An electron source having a cathode and a permanent magnet having perforated channels extending between opposite poles of the magnet. Each channel forms electrons received from the cathode into an electron beam for guidance towards a target. The electron source has applications in a wide range of technologies, including display technology and printer technology.

Cathode ray tubes including assembly locating means

... 1,021,775. Colour television receiving tubes. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 11, 1964 [Dec. 13, 1963], No. 50626/64. Heading H1D. A three-gun, three-colour, shadow-mask-type cathode-ray tube in which electron beams emanating from individual terminal accelerating electrodes of the gun structure are directed through corresponding apertures in a disc-like base element of a magnetic polepiece assembly which deflects the beams so they all converge to a point on the screen has a plurality of positioning members arranged so as to ensure a coaxial mating relationship between the apertures and the terminal electrodes. The positioning members may be L-shaped brackets so disposed as to position the terminal electrodes coaxial with respect to the apertures in the base element, the electrodes having one or more outstanding tabs or lugs for joining to the base element. In further embodiments a plurality of upstanding integral tabs may be produced by suitably punching the base element; an upstanding ...

Device for correcting an image on a picture tube having in-line electron guns and a coil assembly for the device

In a deflecting yoke of an in-line type color picture tube, a pair of saturable reactors responsive to vertical deflection is connected to the horizontal deflecting coils so that horizontal deflection currents respectively flowing two horizontal deflecting coils are controlled differentially in accordance with the degree of the vertical deflection, thereby minimizing raster distortion. Each of the saturable reactors may comprise a series connection of two coils connected to the vertical deflecting coils, and another series connection of two coils connected to the horizontal deflecting coils. The first-mentioned series connection may be omitted by positioning the second-mentioned series connection so that leakage flux from the vertical deflecting coils can be picked up. The core or cores of each of the saturable reactors is magnetically biased by means of a permanent magnet. A single disk-like magnet may be rotatably held to be in contact with parallel arranged two cores so that rotation ...

CORRECTION FOR CRT RASTER

DEFLECTION YOKE ASSEMBLY INCLUDING A BEAM POSITIONING MAGNET ARRANGEMENT

TELEVISION RECEIVER SATURATING CORE REGULATED POWER SUPPLY WITH PERMANENT MAGNET BIASING

An improved automatic integrating instrument

... 755,311. Telemetering. LANDIS & GYR AKT.-GES. Oct. 25, 1954 [Oct. 23, 1953], No. 30674/54. Class 40(1) The invention relates to tape recordings in which a record strip R, Fig. 1, is moved forward by two superposed independent drives, a zero feed which advances the strip at a constant speed a fixed distance a 0 during each constant duration measuring period La-L1, and the power feed which advances the tape a varying amount a 3 during the measuring period. The measuring periods are separated by marks La, L1, &c., and a mark L2 indicates the end of a day's recordings. The invention is concerned with transmitting successively measured values a 1 to respective registers which each integrate the measurements made during their respective measuring periods at a plurality of measuring points. For this purpose the day record strips produced at the various stations are successively passed at constant speed through the integrator, Fig. 2. As each mark La, L1, &c., is scanned, contacts T1 close to energize ...

Superbroad bandwidth cathode-ray tube device

... 1,081,653. Cathode-ray tubes; travelling wave tubes. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. May 29, 1964 [May 31, 1963], No. 22352/64. Heading H1D. A travelling wave tube, e.g. an oscilloscope, has an electron beam deflecting system formed of a superconducting coaxial slow-wave line. The tube has an electron gun 1, Fig. 1, liquid helium cooled vertical deflecting system 3 horizontal scanning electrodes 8 and fluorescent screen 9, and also has liquid nitrogen shield vessels 10, 11 within the envelope 12. The envelope may be continuously evacuated through port 13; or the envelope may be hermetically sealed with an external cryostat contacting a metal envelope portion. The deflecting system has input and output coaxial lines 4, 5, and comprises in section a metal block 61, 62, 63, Fig. 2a, whose outer annular space 7 contains liquid helium and whose inner annular space contains a helium coil 15 supported on insulating material 16 within the helical groove 14 cut in solid inner metal core ...

Improvements in or relating to Convergence Coil Assemblies for Colour Television

... 1,167,484. Colour television tubes. GENERAL INSTRUMENT CORP. 22 March, 1968 [19 May, 1967], No. 14091/68. Heading H1D. A convergence coil assembly for a colour television tube comprises a frame plate 12 with a hole for receiving the neck of the tube and guides 16, 18 to receive three coil housings 20 disposed at 120 degrees, the housings being movable radially to compensate for tube necks of different diameters and having flanges 22 at their inner ends to receive a clamp ring 24 to draw the housings toward one another and against the tube neck. The free ends of the clamp ring are bent, 68, 70, 72, so that two different clamp tensions can be obtained. A permanent magnet 80 rests against the outer end 42, 44 of the U-shaped core of each coil and is rotatable manually, a leaf-spring 88 urging the magnet to contact the core-pieces so as to form a frictional brake to help retain the adjustment of the magnet. An additional lock in the form of a lever with a locking cam bearing upon a locking ...

DISPLAY SYSTEM

... 1510536 Cathode-ray tube circuits RCA CORPORATION 2 May 1975 [20 May 1974] 18555/75 Heading H4T [Also in Division H1] In a colour display system including a colour picture tube having three co-planar beams, the beams are converged at the screen centre by static convergence means, the winding distribution of the horizontal deflection coils is so arranged as to substantially converge vertical lines at the central screen region, the winding distribution of the vertical deflection coils is so arranged as to substantially converge horizontal lines at all screen positions and the residual mis-convergence of the vertical lines (at the top and bottom of the screen) is substantially corrected by means of a quadripolar field varied at the vertical scanning rate. The quadripolar field may be produced by four suitably positioned coils adjacent the scanning yoke or it may be produced by unbalancing the scanning current in the vertical deflection coils. Fig. 1 shows one embodiment in which the deflection ...

Beam conveyance arrangement for a plurality of electron beams in a tri-colour kinescope

... 761,814. Electromagnets. RADIO CORPORATION OF AMERICA. June 2, 1954 [June 25, 1953; Sept. 30, 1953], No. 16328/54. Class 35. [Also in Group XL (a)] An electromagnet for deflecting a beam of a multiple beam colour television tube (see Group XL (a)) comprises an E- shaped core 76 coupling with pole pieces 70, 72 within the envelope. Other magnets described have a U-shaped core outside the envelope and within the envelope plate-shaped pole-pieces extending radially of the tube axis. Permanent magnets may be used.

DISTRIBUTED ELECTRON DEFLECTION STRUCTURE EMPLOYING DIELECTRIC SUPPORT

... 1466985 Electron beam deflecting system TEKTRONIX Inc 30 May 1974 [19 July 1973] 23969/74 Heading H1D To support a flat-faced helical delay line in a cathode-ray tube, in order to provide an irregularity-free travelling field between the line 22 and either a similar complementary line 23 or an earth plane (Figs. 1, 2, 3, not shown) to deflect an electron beam, the teeth 19 of a dielectric comb, integral with a dielectric base or inserted into holes in a glass rod 20, are bonded to every turn or to a fraction of the turns of the helix. Various arrangements of balanced or single sided deflection systems are illustrated (Fig. 3, not shown). The dielectric supports may be made slightly conducting if necessary to bleed stray charge.

CONVERGENCE APPARATUS FOR IN-LINE BEAM CATHODE RAY TUBE

Convergence device for projection type colour television system

In a convergence device for a three primary-color projection type color television system with three cathode-ray tubes, it is known to use two separate cores respectively for dynamic and static convergence correction. In the present invention a single core is used and the core is provided with eight pole pieces aligned along the vertical, horizontal and two diagonal axes, each pole piece having a winding therearound. The vertically and horizontally aligned pole pieces are used to correct horizontal and vertical dynamic convergence respectively. The diagonally aligned pole pieces are used for both the horizontal and vertical static convergence correction by producing magnetic fields horizontally and vertically. The construction is much simpler than the prior art, and the correction of dynamic and static convergence which is required as a result of the difference in incident angles between electron beams projected on a screen can be easily attained.

DEVICE FOR DISPLAYING COLOUR TELEVISION IMAGES

... 1528600 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 Oct 1975 [14 Nov 1974] 45302/75 Heading H1D In a colour television tube having three in-line electron beams, independent displacement in any direction of the two outer beams, and horizontal and vertical displacement of all three beams simultaneously, is effected by the provision, equally spaced around the tube neck, of either 8, as shown, or 12 (Figs. 5 and 6, not shown) sets of coils, the sets being either radially, Fig. 2, or toroidally, Fig. 3b, arranged with their axes in a common plane, the adjustable D.C. energization of six coil circuits, every coil of a circuit deriving from a different set, permitting the independent production of horizontal and vertical axis 2 pole and 6 pole fields, a horizontal axis 4 pole field, and a 4 pole field having an axis at 45 degrees to the horizontal, whereby to permit correction of convergence, frame, and colour purity errors. The coils may be provided with ferromagnetic ...

Device of reproduction of images of television.

Device of reproduction for television colors.

MECHANISM FOR THE CONVERGENCE OF SEVERAL BEABSTANDETER, COPLANAR ELECTRON-BEAMS

VERFAHREN UND EINE EINRICHTUNG ZUM EINSTELLED DER FARBREINHEIT VON DREI IN EINER EBENE VERLAUFENDEN ELEKTRONENSTRAHLEN IN EINER KATHODENSTRAHLROEHRE

PROCEDURE AND A MECHANISM FOR EINSTELLED THE CHROMA OF THREE ELECTRON-BEAMS IN A CATHODE RAY TUBE, RUNNING IN ONE LEVEL

PROCEDURE AND A MECHANISM FOR ADJUSTING THE CHROMA OF THREE ELECTRON-BEAMS RUNNING IN ONE LEVEL IN A CATHODE RAY TUBE

COLOR TV PICTURE TUBE WITH A CORRECTION OF COMA ERRORS OF SMALL AMPLITUDE.

WITH SIMPLIFIED CONVERGENCE WORKING COLOR REPRODUCTION OF THE PICTURE MECHANISM

Electromagnetic deflection yoke for a color television picture tube

EINRICHTUNG ZUR KONVERGENZ MEHRERER BEABSTANDETER, KOPLANARER ELEKTRONENSTRAHLEN

ABLENKSPULENSATZ FUR EINE FARBBILDWIEDERGABEEINRICHTUNG

IMAGING EQUIPMENT

Cathode ray tube with three electron-beam centrifuges

COLOR PICTURE DISPLAY DEVICE WITH A MAGNETIC QUADRUPOLE COIL

Space-saving cathode ray tube employing magnetically amplified deflection

DISPLAYING TELEVISION PICTURES

MICROWAVE ELECTRON GUN

MAGNETIZING APPARATUS AND METHOD FOR PRODUCING A STATICALLY CONVERGED CATHODE RAY TUBE AND PRODUCT THEREOF

INLINE ELECTRON GUN HAVING AN IMPROVED CONVERGENCE ASSEMBLY

COLOR PICTURE TUBE BEAM CONVERGENCE APPARATUS

APPARATUS FOR LATERALLY CORRECTING THE POSITION OF THE BLUE BEAM IN A CRT

COLOUR DISPLAY TUBE

METHOD AND MEANS FOR DYNAMIC CORRECTION OF ELECTROSTATIC DEFLECTOR FOR ELECTRON BEAM TUBE

An electron beam tube electrostatic deflection system and method of operation is described. The electron beam tube includes an eight-fold deflector and means are provided for applying two different quadrupole correction electric potentials to selected ones of the eight-fold deflector members and for applying an octupole correction electrical potential to all eight deflector members. In the preferred embodiment, the quadrupole and octupole correction potentials applied to one set of four deflector members are represented by the respective values (V2c - ?),(-V2c - ?),(V2c - ?),and(-V2c - ?), and the quadrupole and octupole correction potentials applied to the second set of four deflector members are represented respectively by the values(V2s + ?), (-V2s + ?), (V2s + ?) and (-V2s + ?) where the quadrupole correction electric potential , (1) the quadrupole correction electric potential , (Z) and the octupole correction potential ? applied to all eight of the eight-fold deflector members is ...

STATIC CONVERGENCE UNIT

Two six-pole annular magnetic structures are arranged about the neck of a three-in-line colour display tube so as to be eccentric with respect to each other and with respect to the centre of the neck. The centre of one six-pole is situated halfway between the central electron beam and one outer electron beam. The two beams on both sides of the centre of the six-pole, consequently,are subjected to equal forces of the same direction. The third beam is subjected to a force in the same direction, but this force is nine times larger due to the three times as larger distance from the centre of the six-pole and due to the square-law field variation thereof. Because of their identical direction and value, the forces acting on the former beams will not disturb the convergence therebetween.

PLURAL BEAM COLOR PICTURE TUBE WITH IMPROVED MAGNETIC CONVERGENCE STRUCTURE

ELECTRON BEAM DEFLECTION APPARATUS

CONVERGENCE MEANS FOR PLURAL IN-LINE BEAM CATHODE RAY TUBE

PICTURE DISPLAY DEVICE

By arranging in a picture display device comrising a display tube and deflection coils the deflection point of the deflection coils substantially in the centre of the focusing lens of the electron gun of the display tube, the curvature of field of the deflection coils is at least partly compensated for.

PINCUSHION RASTER DISTORTION CORRECTOR WITH IMPROVED PERFORMANCE

A television display system includes a kinescope for producing an electron beam and a deflection yoke for deflecting the electron beam to form a raster on a display screen of the kinescope. A field forming apparatus is located external to the yoke for correcting side pincushion distortion of the raster on the kinescope display screen. The field forming apparatus comprises a pair of magnetically permeable flux gathering members located on opposite sides of the yoke within the stray field produced by the vertical deflection coils of the yoke. Flux channeling members carry the flux from the flux gathering members to flux directing members at the front of the yoke where the appropriate distortion correction field is formed. The flux channeling members include a part that extends perpendicular to the kinescope so as to place the flux directing members close to the funnel of the kinescope in order to generate a field of sufficient intensity to provide the desired amount of pincushion distortion ...

COLOR PICTURE TUBE WITH CORRECTION MAGNET OUTSIDE ITS NECK

PHN. 9613 11 "Device for displaying coloured pictures". If in a device for displaying coloured pictures comprising a colour display tube of the "in-line" type, which comprises magnetized means for maintaining a static magnetic multipole field near the output of the electron gun system for carrying out static beam corrections, a correction magnet is provided outside the neck near the output of the electron gun system and near at least one outermost electron beam, which magnet forms a magnetic dipole and is intersected by the said plane and which correction magnet is small with respect to its distance to said electron beam, it is possible afterwards to provide small corrections in the horizontal static convergence.

CATHODE-RAY TUBE WITH MAGNETIC RING

Cathode-Ray Tube with Magnetic Ring A cathode-ray tube 10 with a deflection system 15 and an electron gun 14 having a magnetic ring 19 attached thereto is designed so that the magnetic ring 19 is not covered by the deflection system 15. To achieve this, the magnetic ring 19 is placed further to the back of the colour-picture tube 10 than in conventional tubes, and/or the deflection system 15 is made shorter at the back. On an adjusting apparatus comprising both a magnetizing device and a deflection-system-posi-tioning device, the magnetization of the magnetic ring and the positioning of the deflection system of such a tube 10 can be performed simultaneously and independent of each other. The measure can be taken on all tubes having a deflection system 15 and a magnetic ring 19 for adjusting the positions of at least two electron beams; in the case of colour-picture tubes, colour purity and static convergence are adjusted with such a ring.

BOX-SHAPED SCAN EXPANSION LENS FOR CATHODE RAY TUBE

BOX-SHAPED SCAN EXPANSION LENS FOR CATHODE RAY TUBE A cathode ray tube is provided with a rectangular box-shaped lens intermediate the tube's screen and beam deflection plates for amplifying beam deflections in both of the horizontal and vertical axes. In one form, useful in either monoaccelerator or PDA tubes, the lens includes four tubular elements disposed end-to-end and spaced apart a sufficient distance to isolate them electrically. The adjacent ends of each pair of the elements are oppositely curved to provide electron lenses having vertical cylindrical mid-surfaces. The radii of the cylindrical surfaces and the voltages applied to each element are adjusted to provide a lens system that produces minimum distortion and optimum linearity in the resultant display.

CIRCUIT ARRANGEMENT IN A PICTURE DISPLAY DEVICE

DUAL BEAM CRT

DUAL-BEAM CRT A dual beam cathode-ray tube having a pair of electron guns and associated deflection means disposed side-by-side on each side of a central axis is described in which the electron guns are parallel and the deflection means includes beam centering plates and angled horizontal deflection plates to direct the electron beams toward the central axis, precluding the need for a large-diameter tube neck in which the entire gun structures are angled. Bowing control plates are disposed adjacent the beam centering plates to minimize trace bowing, and an intergun shield is disposed between the horizontal deflection plates to control and correct display pattern geometry distortion.

METHOD OF MANUFACTURING A STATIC CONVERGENCE UNIT, AND A COLOUR DISPLAY TUBE COMPRISING A CONVERGENCE MANUFACTURED ACCORDING TO THE METHOD

The method according to the invention consists in the determination of data of the convergence errors of a colour display tube, data being derived from the said determinations for determining the polarity and the intensity of magnetic poles of a structure. The structure thus obtained generates a static, permanent, multipole magnetic field adapted to the convergence errors occurring, so that the errors are corrected.

STATIC CONVERGENCE DEVICE FOR ELECTRON BEAMS

STORAGE CATHODE RAY TUBE HAVING AUXILIARY COILS TO CORRECT NON-SYMMETRICAL GEOMETRY

DEVICE FOR CORRECTING AN IMAGE ON A PICTURE TUBE HAVING IN-LINE ELECTRON GUNS AND A COIL ASSEMBLY FOR THE DEVICE

CATHODE-RAY TUBE

DEVICE FOR ADJUSTING THE ELECTRON BEAMS OF A COLOUR- PICTURE TUBE

ELECTRON BEAM DEFLECTION SYSTEM

DISPLAY SYSTEM WITH SIMPLIFIED CONVERGENCE

DEFLECTION YOKE AND COLOR CATHODE RAY TUBE WITH THE DEFLECTION YOKE

A deflection yoke for a cathode ray tube can correct both the pincushion distortion at the upper and lower edges of the screen and the misconvergence of the screen at the same time by the deflection yoke itself without the need for a correction magnet. The deflection yoke comprises a saddle shaped horizontal deflection coil, a saddle shaped vertical deflection coil located outside the horizontal deflection coil, and a high permeability core located outside the vertical deflection coil. The core has notch portions at the center parts of the upper and lower portions of the screen side end.

Kathodenstrahlröhre für Polarkoordinatenaufzeichnung.

Vorrichtung mit einer Elektronenstrahlröhre zur Bildwiedergabe

Elektronenstrahlröhre mit mindestens zwei Elektrodensystemen.

Verfahren zur Herstellung von überzogenen Glasfäden und vorrichtung zur durchführung des Verfahrens

METHOD FOR ROUTING GAMMA VOLTAGES IN FLAT PANEL DISPLAY

A method for routing gamma voltages in a flat panel display that includes a plurality of source driver integrated circuits (SDICs) each having a plurality of gamma buffers. The method includes forming routing lines to route a plurality of gamma voltages; connecting the routing lines to output terminals of the gamma buffers; applying the reset gamma voltage to the gamma buffer of selected SDIC after selecting the SDIC in which the gamma voltage is required to be reset in consideration of heating values of the SDICs, and changing connection between a routing line corresponding to the selected gamma buffer and a tap point of a resistor string of the SDIC such that the connection corresponds to the reset gamma voltage. 1. A method for routing gamma voltages in a flat panel display that includes a plurality of source driver integrated circuits (SDICs) each having a plurality of gamma buffers , the method comprising:forming routing lines to route a plurality of gamma voltages;connecting the routing lines to output terminals of the gamma buffers;applying the reset gamma voltage to the gamma buffer of selected SDIC after selecting the SDIC in which the gamma voltage is required to be reset in consideration of heating values of the SDICs, andchanging connection between a routing line corresponding to the selected gamma buffer and a tap point of a resistor string of the SDIC such that the connection corresponds to the reset gamma voltage.2. The method according to claim 1 , wherein the SDIC in which the gamma voltage is required to be reset is selected as an SDIC having the highest heating value.3. A method for routing gamma voltages in a flat panel display that includes a plurality of SDICs each having a plurality of gamma buffers claim 1 , the method comprising:forming routing lines to route a plurality of gamma voltages; andexchanging positions to which a pair of selected gamma voltages are applied and transmitting the pair of selected gamma voltages to the routing lines ...

インライン形カラ−受像管装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Color cathode ray tube display device and color purity adjusting method thereof

Patent JPH0217904B2

Detection of position of electron gun

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

A kind of multipurpose THz wave electronic generator

本发明公开了一种多用途太赫兹波电子发生器，包括逻辑单元、基波单元、均衡电路、放大器和辐射器基波单元，包括若干个并联设置的基波模块，逻辑单元控制各基波模块发射出太赫兹基波，太赫兹基波传输到均衡电路，均衡电路对接收到的太赫兹基波进行调理得到复合太赫兹波，复合太赫兹波传输给放大器，放大器对接收到的复合太赫兹波进行放大得到放大太赫兹波，放大太赫兹波传输到辐射器，辐射器将放大太赫兹波辐射给待处理对象。本发明：1、能耗低；2、输出能量强，穿透力强；3、输出可以控制，易于调整、随时调整到与处理对象相符的复合波；4、性能稳定，寿命长；5、应用广泛；6、本发明的太赫兹辐照大型设备与其他具有明显成本优势。

Method of manufacturing hydrogen-filled discharger

Изобретение относится к газоразрядной технике и может быть использовано при разработке и изготовлении газонаполненных разрядников с водородным наполнением. Технический результат - повышение долговечности и стабильности динамического напряжения пробоя разрядника с водородным наполнением. Способ изготовления разрядника с водородным наполнением заключается в размещении элементов конструкции в оболочке, включающей изолятор, наполнении оболочки электроотрицательным газом, тренировке с последующим удалением газа из оболочки, промывке ее водородом и наполнении рабочим газом до давления, обеспечивающего заданное динамическое напряжение пробоя. После этого на электроды разрядника подают импульсы напряжения и проводят тренировку в рабочем режиме при условии, что динамическое напряжение пробоя находится на уровне напряжения скользящего пробоя по внутренней поверхности изолятора с исключением возможности пробоя по изолятору, в процессе наполнения разрядника рабочим газом первоначально его наполняют до давления, при котором величина динамического напряжения пробоя на 5÷10% больше напряжения равновесного состояния, когда динамическое напряжение пробоя равно напряжению скользящего пробоя по внутренней поверхности изолятора. Затем на электроды разрядника подают импульсы напряжения и тренируют до стабилизации динамического напряжения пробоя, затем постепенно снижают давление до момента установления динамического напряжения пробоя на уровне напряжения скользящего пробоя по внутренней поверхности изолятора с исключением возможности пробоя по изолятору и достижения заданного значения динамического напряжения пробоя, лежащего в пределах: 0.9U 0 <U пб.дин. <1,05U 0 , где U 0 - напряжение равновесного состояния, когда динамическое напряжение пробоя равно напряжению скользящего пробоя по внутренней поверхности изолятора. 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 658 320 C1 (51) МПК H01J 17/02 (2006.01) H01J 9/44 (2006.01) H01T 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ...

Deflecting unit

Inline-type color picture tube device

Colored cathode ray tube

본 발명은 논셀프 컨버전스편향방식의 인라인형 칼라 음극선관을 개시한다. 본 발명은 그 저면에 전자빔 통과공이 형성되어 편향요크의 누설편향자계를 차폐하는 시일드컵을 구비하여 된 인라인형 칼라 음극선관에 관한 것으로, 상기 시일드컵의 내면과 배면에 수평편향력에 의한 전자빔 스포트의 왜곡을 보정하는 제 1 보정수단과 수직편향력에 의한 전자빔 스포트의 왜곡을 보정하는 제 2 보정수단을 각각 설치하여 된 것에 특징이 있으며, 이는 편향수차에 의한 전자빔 스포트의 왜곡을 방지할 수 있는 이점이 있다. (제 6 도)

Automatic sharpness adjustment for picture tubes

In-line type color cathode ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Color crt display apparatus and color purity adjusting method

종래의 ITC조정작업은 경험과 직감에 의한 쉽지 않은 작업이다. Conventional ITC coordination is a difficult task based on experience and intuition. CRT1, DY8의 후부의 CRT네크(29)에 CP-ASSY10을 준비하고, 그 CP-ASSY10근방에 2극 자계를 만드는 2극코일(12)과, CRT패널(3) 주위에 감겨진 퓨리티코일(13)을 설치하고, 이들 코일에 수평, 수직 주기의 전류를 통전하는 전류 공급회로(15)를 설치한다. The CP-ASSY10 is prepared in the CRT neck 29 at the rear of the CRT1 and DY8, and the two-pole coil 12, which produces a two-pole magnetic field near the CP-ASSY10, and the purity coil wound around the CRT panel 3 ( 13), and a current supply circuit 15 for supplying current in horizontal and vertical cycles to these coils. 또, 화면상의 미스랜딩을 다른장치에 의해 계측해서, 그 데이터를 분석하는 배분기와 배분기의 지시에 의해 2극코일(10) 및 퓨리티코일(13)에 흘리는 전류제어회로(16)를 설치한다. In addition, a current control circuit 16 is provided which measures the mislanding on the screen by another device and flows the bipolar coil 10 and the purity coil 13 by the instruction of the distributor and the distributor to analyze the data. CP-ASSY10의 2극부(103)의 조정, DY8의 부착위치의 조정에 대해, 2극코일(12)에의 통전전류 및 퓨리티코일(13)에의 통전전류에 의해 랜딩 보정이 가능하고, 또 이들의 조정해야 할 량이 배분기에 의해 지시되므로 ITC조정작업이 쉬워진다. With respect to the adjustment of the bipolar portion 103 of the CP-ASSY10 and the adjustment of the attachment position of the DY8, landing correction is possible by the energizing current to the bipolar coil 12 and the energizing current to the purity coil 13, and these The amount to be adjusted is indicated by the distributor, making ITC adjustment easier.

Electron gun for cathode ray tube

Automatic picture regulator for color cathode-ray tube

Manufacture of cathode-ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Apparatus for adjusting assemblages of electric components

요약없음 No summary

Electron-gun for color cathode ray tube

본 발명은 칼라 음극선관용 전자총을 개시한다. The present invention discloses an electron gun for a color cathode ray tube. 본 발명은 전치 삼극부를 이루는 캐소오드, 제어전극 및 스크린 전극과, 보조 및 주렌즈부를 이루는 복수개의 전극을 구비하여 된 칼라 음극선관용 전자총에 관한 것으로, 주렌즈부를 이루는 전극이 림전극부재와, 이 림전극부재의 내부에 전자빔의 진행방향으로 설치되어 림전극부재의 내부를 세 전자빔이 각각 통과하는 통로로 구획하는 절연부재를 구비하여 구성된 것에 그 특징이 있으며, 전자총으로부터 방출된 전자빔을 정확하게 형광점에 랜딩시킬 수 있는 이점을 가진다. The present invention relates to a cathode for a color cathode ray tube comprising a cathode, a control electrode, and a screen electrode forming an anterior tripolar portion, and a plurality of electrodes forming an auxiliary and main lens portion, wherein the electrode forming the main lens portion comprises a rim electrode member; It is characterized in that it is provided in the rim electrode member in the traveling direction of the electron beam and has an insulating member for partitioning the inside of the rim electrode member into passages through which the three electron beams pass, and the electron beam emitted from the electron gun is precisely fluorescent point. Has the advantage of landing on

Deflection yoke

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Deflection Device of Cathode Ray Tube

본 발명은 음극선관의 편향장치에 관한 것으로서, 음극선관의 퍼넬 외주에 설치된 편향장치는 수직편향코일(38) 및 수평편향코일(34)을 구비하는 편향요크(40)를 구비하고 있고, 편향요크의 선단개구부(40a)의 외주에는 보정코일(42)이 설치되어 있으며, 보정코일의 양 단자간에는 정전용량소자가 접속되어 있고, 정전용량소자의 용량은 보정코일의 단자간에 생기는 유기전압이 소정값 이하가 되는 값으로 설정되어 있는 것을 특징으로 한다.

Color image-receiving tube

(57)【要約】 【課題】 シャドウマスクをハウリング、変形、局部的 なドーミングなどをおこしにくい構造に形成して、品位 良好な画像を表示するカラー受像管を構成することを目 的とする。 【解決手段】 実質的に矩形状パネル22の有効部20がほ ぼ平面または平面に近い曲面からなるカラー受像管にお いて、シャドウマスク25のマスク本体32の短軸付近およ び長軸付近のうち少なくとも短軸付近における対向スカ ート部の開放端縁間の間隔をマスクフレーム33取付け前 後で異なる大きさに形成した。

Color cathode-ray tube device

본 발명은 칼라음극선관장치에 관한 것으로서, 복수의 궤도 보정 코일(22a, 22b, 24a∼24d) 및 이 코일에 전류를 공급하는 전류공급회로로 이루어진 적어도 하나의 궤도보정수단(14, 15)이 설치되고, 이 궤도보정수단은 한쌍의 사이드빔(4B, 4R)에 형광체스크린의 중심에 대해 주변부에서 오버 또는 언더컨버전스를 부여한다. 이 궤도보정수단은 이 발상 자계중에 3전자빔(4B, 4G, 4R)에 힘을 미치지 않는 위치가 있도록 자계를 발생하고 이 위치가 관축과 제 1 또는 제 2 방향을 포함하는 면에서 멀어져 있으며, 이와 같은 구조를 갖는 칼라음극선관장치에서는 프레스 성형된 섀도우마스크를 이용하여 평탄 화면을 실현하는 경우등에 이용되는 궤도보정수단을 설치해도 포커스특성 또는 변형등의 특성 열화를 생기지 않도록 할 수 있는 것을 특징으로 한다. The present invention relates to a color cathode ray tube device, comprising a plurality of track correction coils (22a, 22b, 24a to 24d) and at least one track correction means (14, 15) comprising a current supply circuit for supplying current to the coil. This orbital correction means imparts an over or underconvergence at the periphery to the center of the phosphor screen to the pair of side beams 4B and 4R. The trajectory correction means generates a magnetic field so that there is a position in the magnetic field that does not apply force to the three electron beams 4B, 4G, and 4R, and the position is far from the plane including the tube axis and the first or second direction. The color cathode ray tube device having the same structure is characterized in that it is possible to prevent the deterioration of characteristics such as focus characteristics or deformation even if the track correction means used for realizing a flat screen using a press masked shadow mask is provided.

Convergence correction device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Convergence device

Patent DE3036495C2

Method for preheating heater of color cathode-ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Plasma display panel and its aging method

本发明涉及一种等离子体显示板及其老化方法。至少在扫描电极(5)和维持电极(6)之间施加包含交变电压分量的电压从而进行在保护层上产生放电痕(飞溅痕)的老化放电，形成比扫描电极(5)侧的放电痕浅的维持电极(6)侧的放电痕，或者，在维持电极(6)侧的放电痕中，距与维持电极成对作为显示电极的扫描电极(5)远的区域的放电痕比距与维持电极成对作为显示电极的扫描电极(5)近的区域的放电痕浅。

Magetizing device for colour purity magnet of colour kinescope with coplanar arrangement of three electron guns

Electron gun for colored cathode ray tube

제어전극(10)과, 가속전극(20)과, 양극(50)과, 제1 및 제2집속전극(30, 40)으로 2분할된 집속전극을 갖는 컬러 음극선관용 전자총에 있어서; 상기 제어전극 및 가속전극에 가까운 위치에 있는 제1집속전극(30)에는 편향 주기에 상관없이 일정한 스태틱 포커스 전압을 인가하고, 상기 양극에 가까운 위치에 있는 제2집속전극(40)에는 편향주기에 따라 가변되는 패러볼릭 파형의 다이내믹 포커스 전압을 인가하고; 상기 제1집속전극(30)은 3개의 전자빔 통과공을 가지며, 각각의 전자빔 통과공의 주변에는 전자빔의 진행방향과 반대방향으로 수직 평행평판(31)이 동간격으로 설치되어 있고; 상기 3개의 전자빔 통과공은, 중간 전자빔 통과공의 중심으로부터 좌우측 전자빔 통과공의 중심에 이르는 거리가 수직 평행평판(31)간의 중심간의 거리보다 크기 때문에, 좌우측 전자빔 통과공이 수직 평행평판(31)에 대해서 만큼 좌우측으로 각각 편심되어 있는 구조로 이루어져서; 전자총의 조립성을 향상시킴과 동시에 작은 값을 갖는 다이내믹 전압(Vd)으로도 전자빔을 충분히 종장화시킴으로써 전자빔의 포커스 형태를 개선시킬 수 있는 효과를 갖는 컬러 음극선관용 전자총에 관한 것.

Aging of magnetron

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Deflection yoke

내용 없음. No content.

Deflection apparatus for cathode ray tube

본 발명은 음극선관의 편향장치에 관한 것으로서, 음극선관의 퍼넬 외주에 설치된 편향장치는 수직편향코일(38) 및 수평편향코일(34)을 구비하는 편향요크(40)를 구비하고 있고, 편향요크의 선단개구부(40a)의 외주에는 보정코일(42)이 설치되어 있으며, 보정코일의 양 단자간에는 정전용량소자가 접속되어 있고, 정전용량소자의 용량은 보정코일의 단자간에 생기는 유기전압이 소정값 이하가 되는 값으로 설정되어 있는 것을 특징으로 한다. The present invention relates to a deflection device for a cathode ray tube, wherein a deflection device provided on an outer periphery of the cathode ray tube includes a deflection yoke 40 having a vertical deflection coil 38 and a horizontal deflection coil 34. A correction coil 42 is provided on the outer circumference of the tip opening portion 40a of the capacitor. A correction element 42 is connected between both terminals of the correction coil, and the capacitance of the capacitance element is a predetermined value generated between the terminals of the correction coil. It is set to the following values, It is characterized by the above-mentioned.

Color cathode ray tube system with reduced spot growth

내용없음 No content

Colour cathode-ray tube

目的在于通过形成不易造成使荫罩振鸣、变形、局部隆起等的结构，构成显示良好质量的图象的彩色阴极射线管。在实际上矩形屏盘(22)的有效部分(20)由大致平面或接近平面的曲面构成的彩色阴极射线管中，在荫罩(25)的荫罩主体(32)的短轴附近和长轴附近，至少在短轴附近，按荫罩框架(33)安装前后不同的大小形成相对的裙边部分的开放端边缘间的间隔。

Patent JPH0250581B2

Electron beam convergence correcting apparatus of cathode ray tube

PURPOSE: An electron beam convergence correcting apparatus of a cathode ray tube is provided to maintain horizontal axes of a deflection yoke and a mis-convergence correcting magnet parallel to each other and improve effect of mis-convergence correction. CONSTITUTION: An electron beam convergence correcting apparatus of a cathode ray tube comprises many ring elements(41) and a transport unit(50). Each of the ring elements(41) is of an oval ring and inserted into a neck(21). The transport unit(50) transports the ring elements(41) parallel to a horizontal axis of the cathode ray tube or a horizontal axis of a deflection yoke(24) relative to a neck(21). The ring elements(41) are magnetized to alternate N poles and S poles. The transport unit(50) includes a rack gear(51) alternately arranged inside the ring elements(41), and a rotating element(55) coupled to the ring elements(41) at outer boundary of a fixed element(53a) of a separator(53) attached to the neck(21). The rotating element(55) has a gear(55a) along its outer boundary.

Controlling apparatus for mislanding allowance of electron beam of crt

본 고안은 브라운관의 펀넬 하단부 내지 넥크 상단부의 막고부에 설치되는 편향 요오크의 장착위치 조정에 관한 것으로 퓨리티 마그네트(Purity Magnet)로 전자빔의 센터 랜딩(Center Landing)을 조정한 상태에서 편향요오크를 이동시켜 퓨리티가 취해지는 범위를 조정하는 것이다. The present invention relates to the adjustment of the mounting position of the deflection yoke installed at the bottom of the funnel of the CRT or the upper part of the neck. The deflection yoke is adjusted in the state of adjusting the center landing of the electron beam with a purity magnet. To adjust the range in which purity is taken. 본 고안은 편향요오크의 안착을 지지하는 고정수단과, 이 고정수단과 나사산이 형성된 축에 의해 연결되는 조절수단과, 조절수단의 좌우전값을 표시하는 계측수단을 구비하여 전자빔의 여유도 조종에 오차 발생을 배제하여 제품의 신뢰성을 향상시킨다. The present invention includes a fixing means for supporting the mounting of the deflection yoke, an adjusting means connected by the fixing means and a threaded shaft, and a measuring means for displaying the left and right values of the adjusting means. Improve product reliability by eliminating errors.

Withstand voltage treatment method of cathode ray tube

본 발명은 음극선관의 내전압처리방법에 관한 것으로서, 음극선관(10)의 관외에 전자총의 중간전압전극에 고전압의 펄스를 인가하기 위한 방전갭(50)을 설치하고 이 방전갭에 발생하는 방전에 의해 중간전압전극에 고전압을 인가하고 있으며,따라서 음극선관의 내전압처리의 부족을 없앨 수 있는 것을 특징으로 한다.

Device of measuring deflection characteristic of electron-beam

본 발명은 칼라브라운관은 사용자의 욕구에 적합하게 색순도 및 컨버젼스를 조정하는 ITC(Integrated Tube Component)공정에 관한 것으로, 베이스 부에 취부되어 있는 전자총으로 부터 방사된 전자빔이 지자계등의 영향에 의해 발생되는 미스 컨버젼스(Mis-Convergence)를 측정하여 보상하는 장치에 관한 것이다. The present invention relates to an ITC (Integrated Tube Component) process that adjusts color purity and convergence according to a user's desire. An electron beam emitted from an electron gun mounted on a base part is generated by the influence of a geomagnetic field. The present invention relates to an apparatus for measuring and compensating for mis-convergence. 본 발명은 튜브의 판넬 측면을 지지고정하는 프레임과 튜브의 애노우드 컵에 고전압을 인가하는 애노우드 소켓과 베이스부에 전자빔 방사를 위한 전압을 인가하는 베이스 소켓과, 방사되는 전자빔의 편향을 수직 또는 수평으로 조절하는 편향요오크 및 전자빔의 수직 또는 수평에 대한 조절을 수행하는 조정판넬을 구비하여 이루어진다. The present invention is a vertical or horizontal deflection of the frame for holding the panel side of the tube and the anode socket for applying a high voltage to the anode cup of the tube and the base socket for applying a voltage for electron beam radiation to the base portion, the deflection of the emitted electron beam It comprises a deflection yoke and a control panel for adjusting the vertical or horizontal of the electron beam.

Separator for crt

화면의 코너 부분에서 G빔이 화면 외부로 벗어나지 않게 하는 브라운관의 미스 컨버어젼스 보정용 마그네트를 용이하게 장착하기 위한 세퍼레이터를 제공하고자, 세퍼레이터(2)의 훤넬 측 플랜지(6) 외주 소정 개소, 즉, 세퍼레이터(2)의 내주에 장착된 수평 편향 코일(3)의 양측 권선부 중심의 연장선상에 위치되는 세퍼레이터(2)의 소정 개소에 마그네트(10)를 삽입 고정하기 위한 삽입홈(16)을 상기한 세퍼레이터(2)에 일체로 형성하여, 상기한 삽입홈(16)에 마그네트(10)를 장착한 것이다. In order to provide a separator for easily mounting the miss convergence correction magnet of the CRT which prevents the G-beam from escaping the outside of the screen at a corner portion of the screen, a predetermined portion of the channel side flange 6 of the separator 2, namely, The insertion groove 16 for inserting and fixing the magnet 10 in the predetermined position of the separator 2 located on the extension line of the center of both winding parts of the horizontal deflection coil 3 mounted in the inner periphery of the separator 2 is mentioned above. It is formed integrally with one separator 2, and the magnet 10 is attached to the insertion groove 16 mentioned above.

A color cathode ray tube having a centering cup (a centering cup)

칼라 음극선관의 인－라인 전자총의 센터링 컵에는 네 개의 슬릿이 제공되며, 상기 슬릿들은 인－라인 평면에 관하여 및 상기 인－라인 평면에 수직인 평면에 관하여 상기 중앙 어퍼쳐를 통해 실질적으로 미러－대칭인 구조로 위치되며, 라인은 두 개의 슬릿을 통해 인출되며, 중앙의 개구부인 인－라인 평면과 약 51 내지 63도의 각도를 이룬다. 슬릿은 수렴 오차를 유도하지 않은 채 에디 전류의 발생을 감소시킨다.

PROCEDURE AND APPARATUS FOR CORRECTING THE COLOR UNIT IN A COTTON RADIATION

Electrostatic alignment of a charged particle beam

A field emission source produces a charged particle beam that can be electrostatically aligned with the optical axis. Quadrupole (or higher multipole) centering electrodes approximately centered on the optical axis are placed between the emitter and the extraction electrode. By applying centering potentials of equal amplitude and opposite polarity on opposing elements of the centering electrodes, an electrostatic deflection field is created near the optical axis. The electrostatic deflection field aligns the charged particle beam with the optical axis thereby obviating the need to mechanically align the emitter with the optical axis. A second set of centering electrodes may be used to deflect the charged particle beam back and to ensure that the charged particle beam is parallel with the optical axis. Further, the extraction electrode may be split into a quadrupole arrangement with the extraction and centering potentials superimposed.

Patent FR2167968A1

Improvements to cathode ray tubes

Convergence and position correction circuit for colour TV - corrects effects of earths magnetic field taking direction into account

The convergence correction circuit, for a colour television receiver, corrects for the effects of the magnetic field of the earth and takes the direction of the field into accout. Extra deflection coils are used to compensate beam convergence and location on the screen in addition to the horizontal and vertical deflection systems. This extra coil system is supplied with a compensating current. Control elements (20) are used to regulate the correction current generating circuitry so that the waveform of the current generating circuitry so that the waveform of the current supplied to the coils (19a, 19b) is dependent on the compass bearing-- i.e. on the direction that the CRT is facing.

PROCESS FOR THE REALIZATION OF A TUBE OF COLOR IMAGES AND TUBE THUS REALIZED

Il est possible de corriger les défauts de convergence, de pureté de couleur et de trame d'un tube d'images en couleur par application d'un anneau magnétisé de façon à engendrer un multipôle fixé dans ou autour du col du tube et autour des trajets des faisceaux d'électrons. La magnétisation d'un tel anneau s'effectue le mieux par excitation d'une unité de magnétisation à l'aide d'une combinaison de courants et engendrement d'un champ magnétique multipolaire suivi de la magnétisation par l'engendrement d'un champ alternatif magnétique décroissant, dont la direction varie de préférence continuellement. Application : réalisation de tubes d'images en couleur. It is possible to correct the defects of convergence, purity of color and screen of a tube of images in color by application of a magnetized ring so as to generate a multipole fixed in or around the neck of the tube and around the electron beam paths. Magnetization of such a ring is best accomplished by exciting a magnetizing unit with a combination of currents and generating a multipolar magnetic field followed by magnetization by generating a magnetic field. decreasing magnetic alternating, the direction of which preferably varies continuously. Application: production of color picture tubes.

COMPENSATING DEVICE IN A COLOR TELEVISION TO ENHANCE CONVERGENCE

L'INVENTION CONCERNE UN DISPOSITIF DE COMPENSATION DANS UN TELEVISEUR POUR AMELIORER LA CONVERGENCE. SELON L'INVENTION, DEUX FORMEURS DE CHAMP MAGNETIQUE PERMEABLES 34 SONT PLACES SUR LES COTES OPPOSES D'UN BOBINAGE 17, CHACUN COMPRENANT UNE PREMIERE PARTIE ALLONGEE 35 DISPOSEE ADJACENTE AU BOBINAGE 17 DANS UNE SECONDE REGION DE CHAMP EXTERNE DISPOSEE SUR LES COTES DU BOBINAGE, ET UNE SECONDE PARTIE 36 EN ANGLE PAR RAPPORT A LA PREMIERE, CHACUNE DES SECONDES PARTIES 36 AYANT UNE EXTREMITE DISPOSEE ADJACENTE AU COL DU TUBE-IMAGE APROXIMITE DE L'EXTREMITE DE SORTIE DE L'ENSEMBLE DES CANONS D'ELECTRONS 14 POUR PROVOQUER UNE INTERACTION DES FAISCEAUX D'ELECTRONS AVEC UN CHAMP MAGNETIQUE FORME ENTRE LES SECONDES PARTIES 36 DE FACON A COMPENSER L'EXCES DE CONVERGENCE PRODUIT PAR L'ELECTRODE MAGNETIQUEMENT PERMEABLE DE FOCALISATION 23. L'INVENTION S'APPLIQUE NOTAMMENT A LA TELEVISION EN COULEUR. THE INVENTION RELATES TO A COMPENSATION DEVICE IN A TELEVISION TO IMPROVE CONVERGENCE. ACCORDING TO THE INVENTION, TWO PERMEABLE MAGNETIC FIELD SHAPERS 34 ARE PLACED ON THE OPPOSITE SIDES OF A WINDING 17, EACH INCLUDING A FIRST ELONGATED PART 35 ARRANGED ADJACENT TO THE WINDING 17 IN A SECOND EXTERNAL FIELD REGION PROVIDED ON THE SIDES OF THE WINDING, AND A SECOND PART 36 AT AN ANGLE TO THE FIRST, EACH OF THE SECOND PARTS 36 HAVING AN END PROVIDED ADJACENT TO THE NECK OF THE IMAGE TUBE APPROXIMATE TO THE EXIT END OF ALL THE ELECTRON BARRELS 14 TO CAUSE AN INTERACTION ELECTRON BEAMS WITH A MAGNETIC FIELD SHAPED BETWEEN THE SECOND PARTS 36 SO AS TO COMPENSATE THE EXCESS OF CONVERGENCE PRODUCED BY THE MAGNETICALLY PERMEABLE FOCUSING ELECTRODE 23. THE INVENTION APPLIES IN PARTICULAR TO COLOR TELEVISION.

HV treatment of CRT - with end of tube collar connected into socket immersed in liq. dielectric and with HV applied to socket

PROCEDE DE TRAITEMENT A HAUTE TENSION DES ELECTRODES D'UN TUBE A RAYONS CATHODIQUES QUI CONSISTE A INTRODUIRE LES CONDUCTEURS DE CE TUBE DANS UNE DOUILLE, A APPLIQUER DES HAUTES TENSIONS AUX BORNES DE LADITE DOUILLE ET ENSUITE A SUPPRIMER CES TENSIONS DE LA DOUILLE, CE PROCEDE ETANT EN OUTRE CARACTERISE EN CE QUE LADITE DOUILLE ET LES PARTIES ADJACENTES DU TUBE SONT IMMERGEES DANS UN LIQUIDE DIELECTRIQUE PENDANT L'ETAPE D'APPLICATION DES HAUTES TENSIONS AUX BORNES DE LA DOUILLE.

Patent FR2399121B1

Body for concentrating the electron flow of a cathode ray tube

Cathode ray tube scanning coil assembly

DEVICE FOR CORRECTING NORTH-SOUTH GEOMETRIC DEFORMATIONS OF A CATHODE RAY TUBE, PARTICULARLY AN ASPHERICAL TUBE

MEANS FOR CORRECTING CORRECTION OF THE FRAME BY MODIFYING EXTERNAL FIELDS OF THE WIND DEFLECTOR OF THE TELEVISION

L'INVENTION CONCERNE UN SYSTEME DE VISUALISATION DE TELEVISION AYANT UN TUBE-IMAGE POUR PRODUIRE UN FAISCEAU D'ELECTRONS ET UN BOBINAGE DEFLECTEUR POUR LE DEVIER ET FORMER UNE TRAME SUR UN ECRAN DU TUBE-IMAGE, UN DISPOSITIF DE FORMATION DU CHAMP ETANT PLACE A L'EXTERIEUR DU BOBINAGE POUR CORRIGER UNE DISTORSION EN COUSSINET LATERAL DE LA TRAME SUR L'ECRAN. SELON L'INVENTION, LE DISPOSITIF DE FORMATION DU CHAMP 21 COMPREND DEUX ORGANES MAGNETIQUEMENT PERMEABLES22 RASSEMBLANT LE FLUX QUI SE TROUVENT SUR LES COTES OPPOSES DU BOBINAGE13 DANS LE CHAMP PARASITE PRODUIT PAR LES BOBINES DE DEVIATION VERTICALE14 DU BOBINAGE13; DES ORGANES DE CANALISATION DU FLUX 23, 24 ENTRAINENT LE FLUX DES ORGANES22 AUX ORGANES DIRECTEURS DU FLUX 36, 37 A L'AVANT DU BOBINAGE13 OU EST FORME LE CHAMP APPROPRIE DE CORRECTION DE LA DISTORSION; LES ORGANES 23, 24 COMPRENNENT UNE PARTIE 32, 33 PERPENDICULAIRE AU TUBE-IMAGE 10 POUR PRODUIRE UN CHAMP D'UNE INTENSITE SUFFISANTE POUR OBTENIR LA QUANTITE SOUHAITEE DE CORRECTION DE DISTORSION EN COUSSINET. L'INVENTION S'APPLIQUE NOTAMMENT A LA TELEVISION. THE INVENTION RELATES TO A TELEVISION DISPLAY SYSTEM HAVING AN IMAGE TUBE FOR PRODUCING A BEAM OF ELECTRONS AND A DEFLECTOR WINDING FOR DEVIATION AND FORMING A FRAME ON A SCREEN OF THE IMAGE TUBE, A FIELD FORMING DEVICE BEING PLACED IN THE EXTERIOR OF THE WINDING TO CORRECT A LATERAL CUSHION DISTORTION OF THE WEFT ON THE SCREEN. ACCORDING TO THE INVENTION, THE FIELD 21 TRAINING DEVICE INCLUDES TWO MAGNETICALLY PERMEABLE 22 ORGANS ASSEMBLING THE FLOW WHICH ARE ON THE OPPOSITE SIDES OF THE WINDING13 IN THE PARASITE FIELD PRODUCED BY THE VERTICAL DEVIATION COILS14 OF THE WINDING13; FLOW CANALIZATION BODIES 23, 24 DRIVE THE FLOW OF ORGANS22 TO FLOW DIRECTORS 36, 37 BEFORE WINDING13 WHERE THE APPROPRIATE DISTORTION CORRECTION FIELD IS FORMED; THE ORGANS 23, 24 INCLUDE A PART 32, 33 PERPENDICULAR TO THE IMAGE TUBE 10 TO PRODUCE A FIELD OF SUFFICIENT INTENSITY TO OBTAIN ...

Concentrating process and device for an electron - beam

Concentrating process and device for an electron beam.. Is intended to be used in combination with an electron beam welding apparatus in which it is important that the beam will be concentrated and regulated in a precise manner. A plate is arranged, which comprises a slit, at the point where it is desired to concentrate the beam. The beam is oscillated through the plate so that the electrons pass through the slit and pass into a collecting cup; the potential developed in this cup is measured and the beam is then concentrated so that the potential developed in this cup is measured and the beam is then concentrated so that the potential is at a maximum value. The device is intended to be used in combination with a welding apparatus and an oscillograph for operating the process. It comprises in combination a heat dissipater, a plate supported by this dissipator and comprising a slit, and a collecting cup, supported by the heat dissipater but insulated from the latter by a ceramic material. The cup is arranged so that the electrons can pass through the slit and pass into the cup.

MAGNETIZING DEVICE AND METHOD TO BE USED TO CORRECT THE COLOR PURITY OF A CATHODIC-RAY TUBE AND THE PRODUCT THUS OBTAINED

L'invention concerne un dispositif de magnétisation à utiliser pour établir la pureté de couleurs de trois faisceaux d'électrons en ligne dans un tube à rayons cathodiques qui comprend un matériau magnétique placé à proximité de son col. Selon l'invention, un agencement conducteur 39, 40 peut être placé autour du col 21 à proximité du matériau magnétique 20, et il peut être excité par un courant d'aimantation pour créer des regions aimantées en permanence dans le matériau magnétique afin de produire un champ magnétique de pureté de couleurs dans le tube à rayons cathodiques pour établir la pureté de couleurs des trois faisceaux d'électrons en ligne 24, 25, 26; l'agencement conducteur est configuré afin de produire dans le matériau magnétique, lors d'une excitation par le courant d'aimantation, un champ magnétique ayant une composante sensible tangentielle à la circonférence du col. L'invention s'applique notamment aux téléviseurs couleurs. Provided is a magnetization device for use in establishing the color purity of three in-line electron beams in a cathode ray tube that includes a magnetic material placed near its neck. According to the invention, a conductive arrangement 39, 40 can be placed around the neck 21 near the magnetic material 20, and it can be excited by a magnetizing current to create permanently magnetized regions in the magnetic material to produce a color purity magnetic field in the cathode ray tube to establish the color purity of the three in-line electron beams 24, 25, 26; the conductive arrangement is configured to produce in the magnetic material, upon excitation by the magnetizing current, a magnetic field having a sensitive component tangential to the circumference of the neck. The invention applies in particular to color televisions.

Device for Measuring Deflection Characteristics of Electron Beams

본 발명은 칼라브라운관은 사용자의 욕구에 적합하게 색순도 및 컨버젼스를 조정하는 ITC(Integrated Tube Component)공정에 관한 것으로, 베이스 부에 취부되어 있는 전자총으로 부터 방사된 전자빔이 지자계등의 영향에 의해 발생되는 미스 컨버젼스(Mis-Convergence)를 측정하여 보상하는 장치에 관한 것이다. 본 발명은 튜브의 판넬 측면을 지지고정하는 프레임과 튜브의 애노우드 컵에 고전압을 인가하는 애노우드 소켓과 베이스부에 전자빔 방사를 위한 전압을 인가하는 베이스 소켓과, 방사되는 전자빔의 편향을 수직 또는 수평으로 조절하는 편향요오크 및 전자빔의 수직 또는 수평에 대한 조절을 수행하는 조정판넬을 구비하여 이루어진다.

METHOD FOR MANUFACTURING A STATIC CONVERGENCE UNIT, AND COLOR IMAGE TUBE EQUIPPED WITH A CONVERGENCE UNIT MANUFACTURED OF THE KIND

Electronic harness control device

Spot knocking process of cathode-ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Colour picture tube with in line electron guns - has method for convergence to correct errors in beam deflections

The deflection unit for the colour T. V. picture tube is mounted on the tube neck at the flare end. Its field is effective in the main deflection plane of the electron beams, and a static convergence unit is provided before the deflection unit. The outer beams are pre-deflected before their entry into the magnetic fields generated by the above units by a static magnetic field, of a quadripole pattern. Four alternating poles are provided on a ring of plasto ferrite material (15).

Patent FR2237309B3

METHOD AND APPARATUS FOR ADJUSTING STATIC CONVERGENCE AND PURITY OF COLOR TELEVISION TUBES

APPAREIL DE REGLAGE DE LA CONVERGENCE STATIQUE ETOU DE LA PURETE D'UN TUBE DE TELEVISION EN COULEURS NOTAMMENT DU TYPE A MASQUE PERFORE. UN ANNEAU AIMANTABLE 10 ENTOURE LE COL 11 DU TUBE. DES POLES SONT FORMES DANS CET ANNEAU GRACE A DES BOBINES 16 DEPLACABLES DE FACON A ETRE APPLIQUEES CONTRE LA PERIPHERIE DE L'ANNEAU AIMANTABLE 10. L'APPLICATION DES BOBINES CONTRE L'ANNEAU REND CONSTANTE LA RELATION ENTRE LE COURANT FOURNI A CES BOBINES ET L'INTENSITE DE L'AIMANTATION OBTENUE. APPARATUS FOR ADJUSTING THE STATIC CONVERGENCE AND / OR THE PURITY OF A COLORED TELEVISION TUBE, PARTICULARLY OF THE PERFORATED MASK TYPE. A MAGNETIC RING 10 SURROUNDING THE NECK 11 OF THE TUBE. POLES ARE FORMED IN THIS RING THROUGH COILS 16 MOVABLE IN A WAY TO BE APPLIED AGAINST THE PERIPHERY OF THE MAGNETIC RING 10. THE APPLICATION OF THE COILS AGAINST THE RING MAKES THE RELATIONSHIP BETWEEN THE CURRENT PROVIDED TO THESE COILS AND THE '' INTENSITY OF MAGNETATION OBTAINED.

Improvements in the construction of electronic picture tubes

METHOD AND DEVICE FOR ADJUSTING THE STATIC CONVERGENCE AND / OR THE PURITY OF A COLORED TELEVISION TUBE

Device for correcting distorted images on the screens of cathode-ray tubes, in particular television tubes

CATHODIC TUBE TO REPRODUCE COLOR TELEVISION IMAGES

METHOD FOR ALIGNING A SET OF ELECTRON GUNS FOR A COLOR TELEVISION TUBE AND DEVICE USING THE METHOD

LA PRESENTE INVENTION CONCERNE UN PROCEDE ET UN DISPOSITIF POUR ALIGNER UN ENSEMBLE DE CANONS A ELECTRONS POUR UN TUBE DE TELEVISION EN COULEURS. ON FORME POUR CELA L'IMAGE DE REPERES 25A, 25B DE L'ENSEMBLE DE CANONS A ELECTRONS SUR DES ANALYSEURS 12, 13 COMPORTANT CHACUN UNE BARRETTE PHOTOSENSIBLE A TRANSFERT DE CHARGE 21, 22. L'ALIGNEMENT EST CONSTATE QUAND LE SIGNAL DE COMPARAISON EST INFERIEUR A UNE VALEUR PREDETERMINEE. APPLICATION A LA FABRICATION DE TUBES DE TELEVISION EN COULEURS. THE PRESENT INVENTION RELATES TO A METHOD AND A DEVICE FOR ALIGNING A SET OF ELECTRON BARRELS FOR A COLOR TELEVISION TUBE. FOR THIS IS THE IMAGE OF MARKS 25A, 25B OF THE ASSEMBLY OF ELECTRONIC GUNS ON ANALYZERS 12, 13 EACH INCLUDING A PHOTOSENSITIVE CHARGE TRANSFER BAR 21, 22. THE ALIGNMENT IS NOTED WHEN THE COMPARISON SIGNAL IS LESS THAN A PREDETERMINED VALUE. APPLICATION TO THE MANUFACTURE OF COLOR TELEVISION TUBES.

ELECTRONIC BEAM DEVIATOR WITH MAGNETIC FIELD OF CORRECTION AND AUXILIARY MAGNETIC SHIELD INCORPORATED.

L'invention a pour objet un déviateur de faisceau électronique perfectionné avec des aimants permanents de correction d'image incorporés caractérisé en ce que lesdits aimants et le champ magnétique généré par ces aimants sont entourés par un blindage magnétique auxiliaire intégral audit déviateur et positionné avec une grande précision géométrique par rapport auxdits aimants. Ce blindage auxiliaire rend l'efficacité de correction d'image insensible à la forme et à la géométrie de positionnement des éléments métalliques dans le voisinage du déviateur lors de son montage et de son fonctionnement. Application aux tubes à image et plus particulièrement aux tubes à rayons cathodique. The invention relates to an improved electron beam deflector with incorporated permanent image correcting magnets characterized in that said magnets and the magnetic field generated by these magnets are surrounded by an auxiliary magnetic shield integral with said deflector and positioned with a high geometric precision with respect to said magnets. This auxiliary shielding makes the image correction efficiency insensitive to the shape and positioning geometry of the metal elements in the vicinity of the deflector during its assembly and operation. Application to image tubes and more particularly to cathode ray tubes.

APPARATUS FOR ADJUSTING THE POSITION OF A DEVIATOR ON A TELEVISION TUBE, PARTICULARLY IN COLOR

Electromagnetic deflection yoke having bypassed winding turns

A DEFLECTION YOKE FOR A COLOR TELEVISION PICTURE TUBE IS PROVIDED THE COILS OF WHICH HAVE ELECTRICAL TAPS WHICH ARE CONNECTED SUCH THAT A PORTION OF THE COIL WINDINGS ARE BYPASSED TO PROVIDE AN EFFECTIVE TURNS DISTRIBUTION MODIFICATION TO CONTROL THE ELECTRON BEAM MISCONVERGENCE.

Cathode-ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

COLOR IMAGE DISPLAY FITTED WITH A COLOR IMAGE TUBE AND CONVERGENCE ERROR CORRECTORS.

Dynamic convergence device for color cathode-ray tube

A dynamic convergence device in a color cathode-ray tube has two pairs of confronting high- and low-voltage electrode plates disposed in a color cathode-ray tube bulb and arranged such that a central electron beam will pass between the high-voltage electrode plates and side electron beams will pass between the high-voltage electrode plates and the low-voltage electrode plates. A first parallel-connected circuit is composed of a first resistor and a first diode which are connected between the low-voltage electrode plates and a high DC voltage source. A second parallel-connected circuit is composed of a second resistor and a second diode which are connected between the high-voltage electrode plates and the high DC voltage source. A convergence voltage source generates a convergence voltage which is composed of a vertical parabolic wave voltage added to a modulated voltage in horizontal blanking intervals thereof which is produced by amplitude-modulating a horizontal parabolic wave with a vertical parabolic wave. A first capacitor is connected between the convergence voltage source and the low-voltage electrode plates or the high-voltage electrode plates, and a second capacitor is connected between the low-voltage electrode plates or the high-voltage electrode plates and ground.

Arrangement for correction of geometric distortion in a raster displayed on a cathode ray tube

1,047,679. Cathode-ray tubes. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Sept. 10, 1965 [Sept. 11, 1964], No. 38718/65. Heading H1D. In an arrangement for correcting pin-cushion or trapezoidal distortion of the raster on the screen of a television tube an array of rubber permanent magnets are mounted on radially extending pegs provided on and arranged around the periphery of an insulating sleeve for the horizontal deflection coils. The rubber magnets comprise rubber, or similar elastic compound in which magnetic material is distributed, and may be round or square in shape. After adjustment the magnets are secured in position by lacquering. Two magnets rotatable in mutually opposite directions may be mounted on each or on one or more of the pegs.

Device for correcting an image on a picture tube having in-line electron guns and a coil assembly for the device

ABSTRACT OF THE DISCLOSURE: In a deflecting yoke of an in-line type color picture tube, a pair of saturable reactors responsive to vertical deflection is connected to two horizontal deflecting coils so that horizontal deflection currents respectively flowing through the two horizontal deflecting coils are controlled differentially in ac-cordance with the degree of the vertical deflection, thereby minimizing raster distortion. Each of the saturable reactors may comprise a series connection of two coils connected to the vertical deflecting coils, and another series connection of two coils connected to the horizon-tal deflecting coils. The first-mentioned series con-nection may be omitted by positioning the second-mentioned series connection so that leakage flux from the vertical deflecting coils can be picked up. The core or cores of each of the saturable reactors is magnetically biased by means of a permanent magnet. A single disk-like magnet may be rotatably held in contact with two parallel arranged reactor cores, so that rotation thereof results in change in impedance of the reactor.

Permanent magnetic beam alignment apparatus for cathode ray tube

ABSTRACT Means for aligning an electron beam in a cathode ray tube includes a rear bobbin surrounding the cathode ray tube in which is mounted at least one cylindrical-shaped magnet magnetised in the direction of a diameter of the cylinder and rotatable so as to correct for misalignment. In one embodiment, two rotatable magnets mounted at right angles to each other are utilised and in a second embodiment a single magnet can be utilised and the supporting bobbin rotatable by 180°. Dimensions and pick-up and storage type tubes are exemplified.

Method for spot-knocking an electron gun mount assembly of a crt

RCA 85,020/85,020A ABSTRACT OF THE DISCLOSURE A spot-knocking method for an electron gun mount assembly in a evacuated CRT comprises applying a spot-knocking voltage between an anode and a first focus electrode, with the remaining gun elements, including a heater, a cathode, a control electrode, at least one screen electrode and a second focus electrode, electrically floating. (Figure 1)

Deflection apparatus for cathode ray tube

A deflection apparatus arranged on the outer circumference of a funnel of a cathode ray tube includes a deflection yoke having vertical deflection coils and horizontal deflection coils. A compensation coil is provided on the outer circumference of a front end opening portion of the deflection yoke. An electrostatic capacitance element is connected between both end terminals of the compensation coil. The capacity of the electrostatic capacitance element is set such that an inducing voltage generated between both end terminals of the compensation coil is equal to or lower than a predetermined value.

Method of obtaining suitable color purity and magnetizer used therefor

Patent DE3222280C2

Cathode ray tube display device - supplies field coils with sawtooth current synchronous with deflection current of CRT

The display device includes a bipolar electromagnet (12) with field coils on the neck area of the CRT. The electromagnet has field coils for generating bipolar magnetic fields for deflecting electron beams in vertical and horizontal directions via a deflection yoke. A current supplying circuit (13,15) supplies the field coils a saw-tooth current with positive and negative half cycles synchronous with the deflection current of the CRT. A current control circuit (14,16) controls the amplitude of the saw tooth current. USE/ADVANTAGE - E.g for TV. Incorrect setting of electron beams can be corrected simply and without complicated adjustment of fixing position of deflection yoke.

Patent JPS5136015A

Display device with deflection means and means for influencing the distance between electron beams

A cathode ray tube display having an in-line tube includes an electromagnetic unit for dynamically influencing the path or shape of the electron beams. The power for supplying current to the electromagnetic unit is drawn from the line deflection circuit, either through supply coil on a transformer arranged in parallel with the line deflection coil, or from a supply coil sound around the deflection unit core.

Apparatus for color purity correction in color television receivers

Shielded magnet-assembly for colorkinescopes, etc.

Plural beam cathode ray tube including an astigmatic electron lens and self-converging

A cathode ray tube having three electron guns in one plane which are deflected by a self-converging deflection coil. In order to obtain circular electron spots, the tube includes an astigmatic electron lens which restricts the dimension of the electron spots perpendicular to this one plane.

CONVERGENT APPARATUS FOR IN-LINE STRAOLAR

Color picture tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Cathode ray apparatus

Color cathode-ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

DEFLECTION DEVICE FOR A CATHODE BEAM TUBE

Color cathode-ray tube device

A color cathode-ray tube device including trajectory correcting means (14, 15) for giving a pair of side beams (4B, 4R) over- or under-convergence at the peripheral part with respect to the center of the phosphor screen. The trajectory correcting means produce a magnetic field such that there is a region where the magnetic field exerts no force on the three electron beams (4B, 4G, 4R) in the magnetic field and the region is away from the plane including the tube axis and a first or second direction. Even if such trajectory correcting means is provided to a color cathode-ray tube having a flat screen realized by means of a shadow mask produced by press forming, degradation of the characteristics, such as degradation of the focusing characteristic and distortion is not caused.

Color television display tube

METHOD FOR MANUFACTURING A CATHODIC RAY TUBE

Socket for electric part

(57)【要約】 【課題】 カラー陰極線管バルブ内の磁束密度分布が画 面中央に対して非対称であると３本の電子ビームの内、 両側の電子ビーム間のミスコンバーゼンスを生じ、補正 が煩雑となる。 【解決手段】 バルブ１内に蛍光膜２とインライン型電 子銃３を対向配置し、バルブ１の中間部外周に、水平並 びに垂直偏向コイル６、７をボビン５に巻装してなる偏 向ヨーク４を挿着したカラー陰極線管において、上記ボ ビン５の電子銃３側の端部でかつ水平走査方向側方の水 平偏向コイル６からの漏れ磁界と交差する位置に、低ヒ ステリシス特性の高透磁率磁性体よりなる第１の補正部 材１４と、ヒステリシス特性を有する磁性体よりなる第 ２の補正部材１５とを配置した。

Method of correcting deflection defocusing in self-converged color crt display systems

A B S T R A C T This disclosure pertains to the production of self-converged color CRT display systems, and in particular to a method of reducing the effects of off-axis deflection defocusing of electron beams in such systems. The disclosed method comprises installing in the neck of each color CRT bulb a three beam in-line-type electron gun whose mechanical and electrical design parameters are such that the beams in their free fall state have a selected nominal value of underconvergence at the screen which is such that substantially the entire population of production tubes is underconverged. On the neck of each tube is installed a self-converging yoke which establishes, in addition to main deflection magnetic field components, an astigmatic field component which self-converges said beams, but which undesirably introduces astigmatic deflection defocusing of the beams when deflected off the tube axis. Static convergence of said beams at said screen effected by establishing a static astigmatic quadrupolar magnetic field component common to all three beams and opposite to said astigmatic yoke field component which, while accomplishing the desired static beam convergence, deliberately introduces an astigmatic distortion of said beams. The distortion is a function, for each tube, of the free fall underconvergence value for that tube and at least partially compensating the deflected beams for the deflection defocusing of the beams by the oppositely directed astigmatic yoke field component.

Color receiving tube

Ferrite sheet for magnetic field correction of deflection yoke