Abstract: To stabilize the illumination fluctuation rate of a short arc type discharge lamp of the type having a pair of electrodes disposed inside an arc tube in a manner of facing each other and a hydrogen getter, by absorbing hydrogen gas in an arc tube without causing a decline in the performance of the short arc type discharge lamp arising out of a hydrogen getter, the hydrogen getter is formed of a hollow container made of a material that allows the transmission of hydrogen with a getter material sealed tightly inside the hollow container, and a holder for the hydrogen getter is held on the electrode with the hydrogen getter fixed in the holder.

Abstract: A support for filiform elements containing an active material in form of powders is described, comprising anchoring means of the support and blocking means for the filiform element, a method for manufacturing said support and lamps wherein said supports are employed.

Abstract: A discharge lamp comprising a holed metallic structure that serves as a support for an amalgam Bi—In—X—Hg, a method for controlling pressure of mercury within discharge lamps and a process for manufacturing of the lamps are described.

Abstract: The present invention discloses a discharge valve assembly for a linear compressor, comprising: a discharge valve installed at one end of the cylinder to be opened and closed, a compression space for compressing a sucked refrigerant by linear reciprocation of a piston being formed in one end of the cylinder; a discharge cap fixedly installed at one end of the cylinder, for forming a discharge space to which the refrigerant of the compression space is discharged; a discharge valve spring installed between the discharge valve and the discharge cap, for opening and closing the discharge valve according to a refrigerant pressure; and a ring-shaped discharge valve supporter installed in the discharge cap, having at least one main protrusion directly contacting the inner circumference of the discharge cap and at least one auxiliary protrusion disposed with an interval from the inner circumference of the discharge cap being formed on the outer circumference of the discharge valve supporter.

Abstract: A low-pressure mercury vapor discharge lamp has a light-transmitting discharge vessel enclosing, in a gastight manner, a discharge space provided with a filling of mercury and a rare gas. The discharge vessel includes electrode(s) for maintaining a discharge in the discharge space. The discharge vessel further includes a dispenser for controllably dispensing hydrogen into the discharge space during lamp operation. The hydrogen gas pressure during lamp operation is in the range between 10?3 Pa and 10 Pa.

Abstract: A vacuum device, including a substrate and a support structure having a support perimeter, where the support structure is disposed over the substrate. In addition, the vacuum device also includes a non-evaporable getter layer having an exposed surface area. The non-evaporable getter layer is disposed over the support structure, and extends beyond the support perimeter, in at least one direction, of the support structure forming a vacuum gap between the substrate and the non-evaporable getter layer increasing the exposed surface area.

Abstract: A display device is disclosed for providing improved brightness and definition. The device includes a substrate which has anodes and phosphors formed on an inner surface thereof and a plurality of cathode lines that extend in one direction and include electron sources. Control electrodes are provided in a display region in a non-contrast manner. The control electrodes are formed on an inner surface of a back substrate and arranged to face a face substrate in an opposing manner. A support body is interposed between the face substrate and the back substrate such that the support body surrounds the display region and maintains a given distance. The device also includes a plurality of getters arranged between the support body and the partition wall body.

Abstract: Disclosed is a backlight unit that is suitable for reducing humming noise that occurs when power is applied for dimming control. The present invention provides a backlight unit including a plurality of lamps arranged over a bottom cover, first and second lower structures respectively mounted at opposite ends of the lamps, the first and second lower structures having a groove between adjacent lamps, sound absorbing pads disposed within the grooves, common electrodes mounted on the first and second lower structures having the sound absorbing pads thereon respectively, and first and second upper structures respectively coupled to the first and second lower structures. The first and second upper structures have a plurality of ribs that press down on the common electrodes and sound absorbing pads.

Abstract: A lamp electrode adapted to deliver mercury during an assembly process has a supporting electrical lead attached to the proximal end of a metallic shell. The proximal and a distal ends of the metallic shell each lie along a central axis. A container with a vitreous plug in a sealed end contains a substance for delivering mercury upon heating of the container. The sidewall of the container is attached to the electrical lead. The longitudinal axis of the container is skewed relative to the electrical lead to orient the container in a direction to reduce discharge of mercury directly toward the metallic shell. The container is heated to open it and discharge a mercury dose from the sealed end, which is prone to opening upon heating of the container.

Abstract: The lamp comprises a discharge vessel (2) which is closed off in a vacuum-tight manner and is arranged in an outer bulb (12), a getter material being held on a support body inside the outer bulb (12). The support body is a support strip (31) to which the getter material is applied, the support strip being bent in such a way that it is automatically held in the outer bulb (12) without the need for any auxiliary means.

Abstract: In a display device which includes a back substrate, a face substrate, a support body which is interposed between both substrates and surrounds a display region, thus forming an inner space, and a sealing material is provided which hermetically seals the support body and both substrates, thereby to provide a display device having a long lifetime and in which the desired degree of vacuum can be ensured in the inner space. A partition wall body is arranged substantially in parallel at the outside of the display region and at the inside of the support body, and getters are arranged in a space defined between the partition wall body and the support body.

Abstract: A vacuum device, including a substrate and a support structure having a support perimeter, where the support structure is disposed over the substrate. In addition, the vacuum device also includes a non-evaporable getter layer having an exposed surface area. The non-evaporable getter layer is disposed over the support structure, and extends beyond the support perimeter, in at least one direction, of the support structure forming a vacuum gap between the substrate and the non-evaporable getter layer increasing the exposed surface area.

Abstract: A field emission display (FED) and a manufacturing method thereof are provided. The FED includes a getter portion isolated outwardly from an active display region. This getter portion includes a non-evaporable getter layer for absorbing gas and an electron emission source for activating the getter layer. Accordingly, by activating the non-evaporable getter, the gas generated in the display is easily absorbed, and the FED is maintained in a high vacuum state.

Abstract: In a method for manufacturing an electron tube including a front substrate and a back substrate, a wiring and an electrode are formed on the front substrate and/or the back substrate. A component is mounted on the front substrate and/or the back substrate. A ring-less getter is mounted on at least one of the front substrate, the back substrate and the component. A vessel is assembled and sealed so that the front substrate faces the back substrate. A light is irradiated on the ring-less getter from outside of the sealed vessel, thereby activating the ring-less getter.

Abstract: A cathode ray tube has a cathode and plural grid electrodes fixed by insulating support rods. The cathode is supported within an eyelet disposed within and bonded to a cup-shaped support by a crystallized glass. The cup-shaped support is fixed by the insulating support rods. The crystallized glass is formed by firing a glass composition composed chiefly of zinc oxide, boron oxide, silicon oxide, and magnesium oxide. The crystallized glass exhibits a ratio in intensity of a diffraction peak A to a diffraction peak B in a range from 0.25 to 0.80 in an X-ray diffraction analysis using X-rays of 0.154 nm in wavelength, where the diffraction peak A is in the vicinity of 2&thgr;=25.5°, the diffraction peak B is in the vicinity of 2&thgr;=26.5°, 2&thgr;is an angle which a diffracted X-ray beam from a specimen surface makes with an incident X-ray beam.

Abstract: Providing a light bulb having a long life by preventing filament coil breakage. A glass bulb (1) has a sealing portion (4) at one end thereof and contains a filament coil (5). The filament coil (5) is suspended between lead-in wires (7, 8) extended externally of the sealing portion (4), with its opposite ends connected to respective one ends of the wires. The lead-in wires (7, 8) are supported by a stem (6) disposed between the sealing portion (4) and the filament coil (5). A getter (9) is disposed between the sealing portion (4) and the stem (6).

Abstract: A getter supporter of a cathode-ray tube according to the present invention comprises a mounting portion to be fixed to an inside of the cathode-ray tube at one end thereof, a getter holder for holding a getter at the other end thereof, and a spring portion for connecting the mounting portion and the getter holder, in which a contact support portion contacting with the inner surface of the funnel is provided on the spring portion at a position spaced apart in the longitudinal direction from the position of the getter holder. Accordingly, fine cracks of the funnel glass due to heat generation of the getter at getter flashing and heat generation of the contact support portion due to high frequency for heating can be prevented, and also the deformation of the getter supporter by the heat conducted to the contact support portion and the spring pressure can be prevented.

Abstract: A field emission display has an anode with a grille made at least in part of a getter material. The grille defines regions that are coated with phosphor to form pixels, and also getters free molecules within a sealed display. The getter material can alternatively be formed directly on at least a part of the grille, or over the grille on an intermediate layer.

Abstract: A getter assembly for use in a vacuum display panel is described. The novel getter assembly can be provided including both a non-evaporative getter and an evaporative getter which are uniquely positioned juxtaposed to each other such that ions emitted by the evaporative getter upon activation substantially shield the non-evaporative getter so that gases emitted by the non-evaporative getter when activated does not affect the state of vacuum in the vacuum display panel. A preferred embodiment of the present invention novel getter assembly is shown for vacuum display panels that have sufficient thickness in the cavity so that the getter assembly can be installed inside the cavity.

Abstract: The invention is directed to an improved hollow cathode lamp (15). In the preferred embodiment, the lamp is comprised of a stem (23), a cathode lead (18) which passes through the stem, and a getter (26). The improvement includes a flash shield (28) positioned between the getter and the stem, whereby the flash shield will limit the deposit of getter metal on the stem when the getter flashes. The flash shield may be a circular disk and composed of nickel. The flash shield may include an evacuation passage (46). The flash shield may also be capable of being heated to about 1000° C. during flashing, whereby the flash shield may be heated so as to convectionally repel the getter metal when the getter flashes.

Abstract: The invention relates to a color cathode ray tube and a getter assembly for use in such a cathode ray tube. The getter assembly comprises a conducting strip for contacting a high-voltage contact with a magnetic screening cone inside a cone portion of the tube. Due to the relatively large deflection angle of modern cathode ray tubes with flat display screens, the getter assembly has to be made smaller. Furthermore, in case of reworking during the manufacturing process, an operator can slide the new getter assembly with the aid of a special tool, from the neck side along the inner wall for engagement with the high-voltage contact.

Abstract: A reflector lamp 10 has a vitreous outer envelope 12 formed of a concave reflector 14 and a light-transmitting 16 cover peripherally sealed thereto. The concave reflector and cover are symmetrically arrayed about a longitudinal axis 18 and a substantially cylindrical, hollow neck 20 having a given depth is affixed to the concave reflector opposite the cover. The neck 20 also is symmetrically arrayed about the longitudinal axis 18 and has a substantially closed bottom 21. At least two eyelets, 22, 24, respectively, are sealed in the bottom 21 and a light source capsule 26 is positioned in the concave reflector and aligned with the longitudinal axis 18. The light source capsule 26 has a first end 28 situated in the neck 20 and a second end 30 extending into the concave reflector. The light source capsule 26 comprises a quartz arc tube 32 containing an arc generating and sustaining medium and a surrounding aluminosilicate glass shroud 34.

Abstract: The present invention provides an FED with a getter material deposited and activated on the substrates of the faceplate and the baseplate of the FED. In one embodiment of the invention, a large FED includes a faceplate, a baseplate, and an unactivated non-evaporable getter material. The faceplate has a transparent substrate with an inner surface, and a cathodoluminescent material disposed on a portion of the inner surface. The baseplate has a base substrate with a first surface and an emitter array formed on the first surface. The baseplate and the faceplate are coupled together to form a sealed vacuum space in which the inner surface and the first surface are juxtaposed to one another in a spaced-apart relationship across a vacuum gap. The unactivated non-evaporating getter material is deposited directly on the inner surface and/or the first surface.

Abstract: A metal halide lamp and a method for making the same, in which one end of each electrode projects into a discharge chamber to form a light-emitting portion and the other end thereof is supported by a pinch-sealed portion. A coil is wound around at least the pinch-sealed portion of the electrode to absorb gaseous impurities caused by the heat generated during the operation of the metal halide lamp and to prevent cracking, at the pinch-sealed portion, of bulb. A coil, made of high melting point material and gaseous impurities absorption material, is wound around at least the pinch-sealed portion of the electrode and the combination is disposed into the bulb. The diameter of the coil, the internal diameter of a circle made by the coil, and the pitch of the coil are fixed within specific values in connection with the diameter of the electrode.

Abstract: A mercury dispensing support strip capable of dispensing mercury and sorbing reactive gases. In one embodiment, the support strip of the invention includes at least one track of mercury releasing material deposited on one face of the support strip. At least one track of getter material is also deposited on the same face of the support strip. The tracks of mercury releasing and getter materials are deposited on the support strip such that the mechanical strains exerted by the materials on points of the support strip that are substantially symmetric with respect to a central axis of said first surface of said mercury dispensing support strip are substantially equivalent.

Abstract: A Field Emitter Device (FED) having a substantially reducing atmosphere is described. The atmosphere in a FED can be maintained substantially free of oxidizing gases and includes a partial pressure of hydrogen between about 1.times.10.sup.-7 millibar (mbar) and 1.times.10.sup.-3 mbar. In one embodiment, a non-evaporable getter material previously charged with hydrogen gas is placed inside the FED before the FED is sealed. The non-evaporable getter material can be charged by exposure to hydrogen gas at a pressure between about 1.times.10.sup.-4 and about 2 bar. Subsequently, the components forming the FED are sealed, and the FED is evacuated and hermetically sealed to the outside atmosphere.

Abstract: A field emission display has an anode with a grille made at least in part of a getter material. The grille defines regions that are coated with phosphor to form pixels, and also getters free molecules within a sealed display. The getter material can alternatively be formed directly on at least a part of the grille, or over the grille on an intermediate layer.

Abstract: A fluorescent lamp having an attachment mounted therein for reduction of soluble mercury contained in the lamp, and to act as a fail-safe at the end of lamp life, comprises a collar of iron mesh providing an iron surface area sufficiently large to reduce a portion of the soluble mercury to elemental mercury when the lamp is pulverized to granules and subjected to a suitable aqueous acid solution, such that a remaining portion of soluble mercury leachable is less than 0.2 milligram per liter of the aqueous acid solution, whereby to provide a substantially non-soluble mercury leachable lamp. The attachment is adapted for disposition around an electrode mount in the lamp and is electrically isolated from lead-in contacts in the mount, such that upon exhaustion of a cathode coating in the lamp, an electrical arc stream impinges on the attachment, causing the mount within the attachment to crack, whereby to provide for safe termination of operation of the lamp.

Abstract: A field emission display (400) includes a cathode plate (410), an anode plate (430), and a mechanical support/getter assembly (300) being disposed between the cathode plate (410) and the anode plate (430). The mechanical support/getter assembly (300) includes a unitary spacer-frame assembly (310) made from a photosensitive glass. A method for fabricating the mechanical support/getter assembly (300) includes the steps of: selectively exposing inter-spacer regions (110) and a getter frame region (120) of a layer (100) of the photosensitive glass to UV radiation, heating the layer (100) to crystallize the UV-exposed regions, and removing the crystallized inter-spacer regions (110) and partially removing the crystallized getter frame regions by contacting the layer (100) with an acid, thereby forming spacer ribs (314) and a getter land (322). The method further includes providing a getter frame (320) on the spacer land (322).

Abstract: A vacuum tube is provided with a line-shaped getter, which includes a holder (2) with a longitudinal axis, which holder (2) contains a getter material (3) over at least a part of its length, said getter being provided with clamping means to clamp the holder (2). The vacuum tube includes aligning means for exerting a torque about the longitudinal axis of the holder (2), said torque being as small as possible for a preferred orientation of the holder (2) relative to the clamping means. The clamping means preferably includes two leaf springs (7, 7'), which are bent so as to be S-shaped and which are provided with apertures (9, 9', 9") at locations where the leaf springs (7, 7') intersect, for passing the holder (2), and a member (6; 19) is provided on the holder (2) in a clamping manner and the clamping means are provided with an orientation surface (17, 17'; 18, 18'), which extends radially relative to the longitudinal axis of the holder (2).

Abstract: The invention relates to a method for producing a cap band for discharge lamps, in which a substrate band (1) is coated with at least one material to be introduced into the discharge lamp, in particular a mercury alloy (2) and/or getter material (3).According to the invention, a portion (5) of the substrate band (1) is severed in a direction transversely to the longitudinal direction of the substrate band (1) to form the cap band for the discharge lamp, so that the cap band, or portion, is coated over its entire width (BT) with the at least one material.

Abstract: The present invention provides an FED with a getter material deposited and activated on the substrates of the faceplate and the baseplate of the FED. In one embodiment of the invention, a large FED includes a faceplate, a baseplate, and an unactivated non-evaporable getter material. The faceplate has a transparent substrate with an inner surface, and a cathodoluminescent material disposed on a portion of the inner surface. The baseplate has a base substrate with a first surface and an emitter array formed on the first surface. The baseplate and the faceplate are coupled together to form a sealed vacuum space in which the inner surface and the first surface are juxtaposed to one another in a spaced-apart relationship across a vacuum gap. The unactivated non-evaporating getter material is deposited directly on the inner surface and/or the first surface.

Abstract: A metal halide discharge lamp includes an outer evacuated sealed glass envelope having a domed end and a socket end spaced from the domed end along a longitudinal axis. The socket end is subject to high temperature sealing fires during the lamp manufacturing process. A getter material is contained in the envelope for removing gaseous materials therefrom, the getter material being positioned in the envelope in an area of the lamp remote from the socket end. A pair of electrical conductors extend into the interior of the glass envelope and an arc tube containing an arc sustaining chemical fill and including a pair of spaced electrodes is electrically connected to the electrical conductors for creating an electric arc during operation of the lamp. The getter material comprises about 70 weight percent zirconium, about 24.6 weight percent vanadium, and about 5.4 weight percent iron. The activation temperature of the getter is in the range of 400.degree.-500.degree. C.

Abstract: A getter device capable of being re-activated as required and arranged in a narrow space in an envelope. The getter is arranged in a layer-like manner in an envelope of an electronic element to provide, in the envelope, a film-like getter for keeping an interior of the envelope at a vacuum. Electrons emitted from an electron feed section are impinged on the getter to activate it. The getter activated adsorbs thereon gas in an envelope of an image display device.

Abstract: An anode plate (10) for use in a field emission flat panel display device (8) includes a transparent substrate (26) having a plurality of spaced-apart, electrically conductive regions (28) are covered by a luminescent material (24) and from the anode electrode. A getter material (29) of porous silicon is deposited on the substrate (26) between the conductive regions (28) of the anode plate (10). The getter material (29) of porous silicon is preferably electrically nonconductive, opaque, and highly porous. Included are methods of fabricating the getter material (29) on the anode plate (10).

Abstract: The present invention relates to a color CRT 10 having an evacuated envelope 11 includes a funnel 15 sealed at one end to a faceplate panel 12. A luminescent screen 22 is provided on an interior surface of the panel. A color selection electrode assembly 27 is disposed within the envelope in proximity to the screen. An internal magnetic shield 30, having an exterior surface 32, is secured to the color selection electrode assembly and is spaced from and extends along at least a portion of the funnel. A getter spring assembly 33 is disposed within the envelope to deposit a film of getter spring material onto the exterior surface 32 of the magnetic shield 30. The getter assembly 33 is improved by being detachably attached to the color selection electrode assembly 27 and prevented from rotating by an orientation plate 60 having a projection 70 with a flat contact surface that bears against the color selection electrode assembly.

Abstract: In a cathode ray tube (CRT) having a glass envelope with a neck portion, a funnel portion and a display screen, or front panel, an electron gun disposed in the CRT's neck portion has a plurality of aligned electrodes, including a charged shield cup. The shield cup includes a plurality of contact springs disposed about the outer periphery thereof and engaging a conductive layer on the inner surface of the CRT's neck portion for supporting the electron gun and charging the shield cup to an electron accelerating, or anode, voltage. Also disposed on the outer periphery of the shield cup and engaging the inner conductive layer is a getter support member.

Abstract: A capsule containing a precise amount of a substance such as mercury is mounted in an electrode mount assembly on a temperature sensitive member. At elevated temperatures the capsule is moved away from lamp components by the temperature sensitive member to preclude inadvertent release of the mercury into the sealed lamp. After the lamp has cooled, the temperature sensitive member urges the capsule into biased engagement with a cutting wire so that upon supply of current thereto the capsule is melted and opened to release the mercury.

Abstract: A halide discharge lamp has a an evacuated outer envelope including a getter comprising from about 60 to about 85 percent zirconium, from about 10 to about 20 percent vanadium, and from about 2 to about 10 percent manganese having an activation temperature of less than about 350 degrees Centigrade for reducing the tendency of the lamps to discolor during operation.

Abstract: The invention relates to a high-pressure discharge lamp (2) provided with a discharge vessel (3) with a ceramic wall (3a) and provided with a bimetal element (11) which rests against the discharge vessel wall in the cold state of the lamp, and which is removed from the discharge vessel wall during lamp operation. The discharge vessel is surrounded by an outer bulb (30) with intervening space (6), in which space a solid-state getter (15) is provided. According to the invention, the solid-state getter is provided on the bimetal element.

Abstract: A thin type image display device for displaying an image by emitting light from a fluorescer with irradiation of electron beams thereto. The device has a cathode panel between a front panel and a back panel in such a manner that a space is existent between the cathode panel and the back panel, wherein through holes for diffusion of getters are formed in the cathode panel to maintain the image quality at the center of a display screen, or the cathode panel is supported by getters to maintain a required pressure, hence attaining a higher image quality even on a large-sized display screen. A gate electrode may be composed of a getter material.

Abstract: A lamp including an evacuated outer jacket, a light source capsule mounted within an evacuated outer jacket, and getter assembly disposed within the outer jacket is disclosed. the getter assembly includes a getter and protection device for protecting lamp parts, e.g., the inner surface of the outer jacket, during flashing of the getter. In a most preferred embodiment, the protection device is formed by a small glass envelope, preferably similar to a photoflash bulb envelope, having a small opening. A getter, such as a getter ring, typically used in the lighting art, is mouted within the bulb envelope. When the getter is activated, the metal vapor of the activated getter is caught inside this bulb envelope and condenses on the inside glass surface of the latter. the impurities within the outer jacket of the lamp diffuse through the opening in the bulb envelope of the protection device of the preferred embodiment and are absorbed by the getter.

Abstract: A cathode ray tube with an electrophoretic getter device incorporated therein is described. The electrophoretic deposition, in the form of a porous coating, of at least one getter material and simultaneously an antisintering agent on any form of getter support is also described. The getter material may be a powder of a metal, of a metal alloy or of a hydride thereof, or a mixture of these components.

Abstract: A high pressure metal vapor lamp including an outer protective envelope having a lens and a reflector member having a base for connecting the lamp to a source of electrical power. An elongaated arc tube is provided extending cross-axially relative to the axis of the lamp, the arc tue being supported by leads extending from the base. A pair of barium flash getters is provided extending from respective ends of the arc tube towards, and in close proximity to, the lens and facing the reflector member.

Abstract: A tungsten-halogen lamp achieves long life in any burning orientation by the inclusion within the lamp of copper, which reduces filament sag and filament corrosion.

Abstract: A hydrogen getter for use within the arc tube assembly of a gas discharge lamp e.g. a high pressure sodium discharge lamp, comprises a layer (11) of a getter material (eg Ti) sandwiched by diffusion bonding between layers (12, 13) of a hydrogen permeable material (eg Nb) there being an exposed region of getter material. Hydrogen getters in the form of disc-like washers are formed from the sandwiched layers by a stamping process.

Abstract: A cathode structure for a magnetron representative of a self-oscillation type microwave electron tube comprises a pair of opposite end shields for supporting both ends of a filament helically wound in an axial direction, and a getter fixed on at least an upper end shield positioned on the side of a terminal from which a microwave oscillation output is produced. The upper end shield is concaved with respect to a lower end shield, and the getter provided on the upper end shield is also concaved so as to be closely fitted over substantially the entirety of an outer surface of the upper end shield. Preferably, the getter provided on the upper end shield has an upright annular wall of a central burring hole. Thus, the improved cathode structure is immune to deformation and suitable for cleaning and welding, thereby ensuring improved lifetime stability and high fabrication efficiency.

Abstract: A television camera tube including a getter (23,24) is assembled so as to be thermally independent of an electron gun (4) and may be provided with any desired electric potential. The getter (23,24) is positioned in a tubular envelope portion (1) of the tube by means of a supporting member (12,21,25) which rests on a supporting edge (11) in the envelope (1). The supporting edge is formed by a stepped reduction of the internal transverse dimension of the envelope portion (1). The supporting member (12) comprises an inner ring (16) which is connected to an outer ring (15) in a limited number of places (19). In the circumferential direction the inner ring (16) and the outer ring (15) include an interruption (17) to counteract excessive heating of the rings during inductive heating of the getter (23,24). Metal strips (21) which support the getter (23,24) are connected to the inner ring (16). The supporting structure is well suited for use in comparatively small cathode ray tubes.

Abstract: In a cathode-ray tube having a glass envelope portion, a gettering device (18) is urged against an internal wall portion of the glass envelope portion (2) by means of a resilient metal strip (19) connected to a component of the tube. The gettering device comprises a getter holder (30) in the form of an annular metal channel which is connected to the resilient metal strip (19) via a metal connection strip (32) and furthermore is kept, spaced from the wall portion by a metal support member (33). The support member is formed by a metal supporting arm (33) extending from the metal connection strip (32) which at its free end (34) is curved convexly with respect to the wall portion and contacts the wall portion in an area (35) situated centrally with respect to the annular channel (30). This arrangement enables the temperature of the support member at the area where it contacts the wall portion to be kept below 700.degree. C.

Abstract: A getter assembly is described which has an antenna mount in the form of a small bar placed along the diameter of an annular container. The antenna mount is formed in such a way as to touch the container only in areas near to the inner wall. In order to reduce to a minimum the points and the areas of contact between the antenna mount and the getter material container, the connection of these two elements is made by means of two diametrically opposite spot welds near to the internal wall of the annular container and longitudinally disposed along the mount.The mounting bar is preferably furnished with a downwardly dependent support member for maintaining the getter assembly away from the wall of the cathode ray tube in which it will be located.