Abstract: A cathode ray tube includes an evacuated envelope having a substantially rectangular faceplate panel with two diagonal axes that extend between the opposing corners of the panel. The panel includes a mask-frame assembly having a frame with two opposing long sides and two opposing short sides forming a continuous mask support frame. The frame is mounted within the tube by brackets located near the corners of the frame. Each bracket is adjustably secured along the short sides of the frame and includes a flat surface section extending normal to the diagonal axes of the panel. A spring clip assembly is secured to the flat surface section of the bracket for engaging a stud affixed to the panel.

Abstract: A nickel alloy for the manufacture of cathodes for cathode-ray tubes, comprises magnesium and aluminium in proportions chosen so as to allow good adhesion of an emissive oxide layer to the basis metal cap consisting of the alloy.

Abstract: A tension mask frame assembly for use in a cathode ray tube is provided. The tension mask frame assembly includes a substantially rectangular mask support frame, having a first coefficient of thermal expansion. The frame is formed of a pair of opposing long sides being joined to a pair of opposing short sides wherein one of these pairs has an attachment zone. The tension mask, having a second coefficient of thermal expansion, is supported by the frame at the attachment zones along the opposing sides. The attachment zones are formed of a material having a coefficient of thermal expansion which is approximately the same as the second coefficient of thermal expansion in order to be matched with the tension mask.

Abstract: A method of filming a luminescent screen is disclosed which improves the light output of CRTs that contain printed phosphor lines. The method incorporates both the application and film formulation requirements and optionally includes in-line diagnostic techniques. The novel film formulation contains a lacquer and solvents, wherein one of the solvents is a non-solvent for the lacquer. The optional diagnostic technique include surface gloss measurements to characterize and monitor the process and provide predictive capability of CRT performance with respect to light output.

Abstract: The invention relates to a motion control system for driving a motor-driven device precisely to a predetermined position in a short time. More particularly, this invention relates to a CD-carousel loader having a precise and short access to the next information medium. The object of the invention is to provide a motion control system for a platter of a CD carousel which requires little outlay and satisfies the requirements in respect of high positioning accuracy, short motion duration and self-locking. According to the invention, this object is achieved by means of a drive system comprising a motor driving circuit and a braking circuit having a common input terminal responsive to a pulse signal during a deceleration period in front of a predetermined position of the motor-driven device.

Abstract: Reproduction and/or recording device for optical recording media having a unit for adjusting the inclination of a bearing, is disclosed. The device includes a unit for adjusting the inclination of a bearing of a laser disk scanning apparatus, which has a board to which the bearing is fastened. The inclination of the bearing can be set with regard to the board by setting units, which alters the distance between the board and the bearing, the selling units each having at least one elastic element, is known. In order to improve the device to the extent that its individual components are inexpensive to produce and the adjustment can be carried out rapidly and in a simple manner, it is provided that the board has at least two elastic lugs, which are connected to the bearing. The inclinations of the lugs can be set with regard to the board by setting units, which act on the lugs.

Abstract: An apparatus for reading from and/or writing to optical recording media on which data markings are arranged along tracks arranged next to one another. The apparatus according to the present invention comprises a light source, a focusing means and an intensity distribution converter. In the present invention, both the extent of the focus spot of the primary beam is reduced and the disadvantages occurring due to the secondary beams are reduced. In an exemplary embodiment, the intensity distribution converter comprises a filtering strip arranged in the region of the focusing means.

Abstract: A color cathode-ray tube (CRT) having an evacuated envelope with an electron gun therein for generating at least one electron beam is provided. The envelope further includes a faceplate panel having a luminescent screen with phosphor elements on an interior surface thereof. A focus mask, having a plurality of spaced-apart first conductive strands, is located adjacent to an effective picture area of the screen. The spacing between the first conductive strands defines a plurality of apertures substantially parallel to the phosphor elements on the screen. Each of the first conductive strands has a substantially continuous insulating material layer formed on a screen facing side thereof. A plurality of second conductive wires are oriented substantially perpendicular to the plurality of first conductive lines and are bonded thereto by the insulating material layer. The insulating material layer comprises a low porosity lead-zinc-borosilicate glass.

Abstract: The present invention relates to a device for reading from and/or writing to optical recording media having a scanning unit, which is equipped with at least two detector units each having a plurality of detector elements, and also an evaluation unit, each of the detector elements being connected to the evaluation unit by means of a line. The object of the present invention is to simplify the structure of a device of this type. This object is achieved by virtue of the fact that detector elements of different detector units are each connected to the evaluation unit via a single line. The device according to the invention is advantageously a device which can read from and/or write to not only optical recording media which correspond to a CD standard but also those which correspond to a DVD standard.

Abstract: A method and apparatus of maintaining spacing between tension mask strands in a tension mask. The method includes providing a tension mask with strands connecting therebetween and attaching a set of barrier ridge elements to a first side of the strands. Next, the tension mask is tensioned and affixed to a mask frame to form a mask frame assembly.

Abstract: The present invention provides a tension mask having a frequency distribution with improved vibration damping. The tension mask includes a center portion between two edge portions. The tension mask also has a parabolic frequency distribution between the edge portions whereby the center portion has a central frequency distribution value and the edge portions have a relatively lower peripheral frequency distribution value characterized in that the range of variation between the center and edge portions frequency distribution value is in the closed interval of about 8 Hz≦&Dgr;≦12 Hz.

Abstract: A socket for a cathode ray tube (CRT) forms part of a circuit board. The socket is positioned on the side of the circuit board away from the funnel portion of the CRT. The terminals which couple to the electron gun of the CRT are positioned along the side of the neck of the CRT, so that when the socket is engaged with the CRT, there is substantially no portion of the socket board which protrudes beyond the end of the neck portion of the CRT.

Abstract: A CRT including an evacuated envelope with a color selection electrode assembly disposed within the envelope, and an internal magnetic shield (IMS) secured to the color selection electrode assembly, and having a replaceable getter attachment assembly comprising a mounting rail and replaceable getter portion. The mounting rail having a first portion with a coupling clip attached to the IMS and a second portion extending therefrom. The replaceable getter portion includes a first end extending from the mounting rail with a getter cup attached thereto and a second end detachably attached to the second portion of the mounting rail. The replaceable getter portion extends from the mounting rail to deposit a film of evaporated getter material therefrom within the envelope.

Abstract: The oxide cathode comprises a support and an oxide layer on the latter. It furthermore includes particles of a conducting material having a first end incorporated in the support and a second end lodged in the oxide layer, so as to constitute conducting bridges passing through an interface layer forming between the support and the oxide layer. The invention also relates to a process for manufacturing such a cathode. The conducting particles make it possible to improve the electrical conductivity of the cathode, both within the oxide layer and within the interface layer.

Abstract: The present invention provides an implosion prevention tension band 16 for use in a cathode ray tube (CRT) 10. The CRT includes a faceplate panel 18 with a substantially flat viewing faceplate 21 and a peripheral rearwardly extending sidewall 22 having an inside blend radius 23 from the viewing faceplate 21 to the sidewall 22. The tension band 16 is a single layer band surrounding the panel 18 and having a predetermined width extending rearwardly from near the faceplate 21 to at least half the distance between the rear edge of the inside blend radius 23 and the rear edge of the sidewall 22. According to another aspect of the present invention, the tension band 16 includes a plurality of tension adjusting features 40 being positioned at locations around the band 16 aft of the inside blend radius 23 in such manner that the stresses in predetermined areas of the panel 18 are reduced.

Abstract: A cathode ray tube having an evacuated envelope including a substantially rectangular faceplate panel with a sidewall joined to a funnel and an implosion resistant band surrounding at least a portion of the sidewall and in contact therewith. The cathode ray tube is mounted in a cabinet by a plurality of mounting lugs. The mounting lugs having a base portion attached to the implosion resistant band, an adjoining portion substantially perpendicular to the base portion, and a mounting portion positioned at an angle in respect to the adjoining portion. The mounting portion having an aperture for receiving a fastner for coupling the mounting portion to the cabinet.

Abstract: The invention relates to a cathode-ray tube having funnel sealed at one end to a faceplate panel with a viewing screen on an interior surface thereof, the funnel and the faceplate panel form an evacuated envelope, and a mask frame assembly supported within the envelope and in proximity to the screen. The cathode-ray tube includes a knee action circuit connector which electrically connects the internal conductive coating which is supported on an inside surface of the funnel. The knee action circuit connector is disposed between the exterior surface of the magnetic shield and the inside surface of the funnel and extends from the magnetic shield to form a curved first contact portion resiliently engaging the conductive coating of the funnel and a second contact portion extending from the curved portion and urged inwardly against the exterior surface of the internal magnetic shield thereby making electrical contact between the conductive coating and the internal magnetic shield.

Abstract: The present invention provides an improvement in the mounting of a cathode-ray tube within a bezel. The cathode-ray tube includes a unitary shellbond frame having integral mounting lugs which are positioned at locations either in the corners or off of the corners. The mounting lugs are formed with tapered sections along a depth dimension to allow a tube having the shellbond frame applied to be simply lowered into a bezel having lug receiving recesses of a complimentary shape. The tapered lug and complimentary lug receiving recess provides self-alignment of the tube before it is secured to the bezel.

Abstract: A cathode ray tube includes a tension mask attached to a rectangular mask frame assembly that has two longs sides paralleling a central major axis thereof and two short sides paralleling a central minor axis thereof. A pair of support blade members are attached each to one of the long or short sides at a central location. Each support blade member includes an inner edge having of a plurality of first sides formed from a relatively low coefficient of thermal expansion material and an outer edge having a second side formed of a material having a relatively high coefficient of thermal expansion. Each edge having a centroid separated from each other along the minor axis.

Abstract: A color picture tube has a tensioned mask supported by a support frame mounted within said tube. The mask has a significantly lower coefficient of thermal expansion than the frame. Intermediary members are located between the mask and the frame. The intermediary members are of a material having a coefficient of thermal expansion similar to that of the mask. Each of the intermediate members is attached to the frame by a plurality of connectors. Each of the connectors is elongated, and each of the connectors is attached at one end thereof to one of intermediate members and attached at an opposite end to said frame.