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    Method of fabricating an apertured mask for a cathode-ray tube
    1.
    发明授权
    Method of fabricating an apertured mask for a cathode-ray tube 失效
    用于制作阴极射线管的掩膜的方法

    公开(公告)号：US3923566A

    公开(公告)日：1975-12-02

    申请号：US26483372

    申请日：1972-06-21

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL

    IPC: C23F1/04 ,  H01J9/14 ,  H01J29/07 ,  C23F1/02

    CPC classification number: C23F1/04 ,  H01J9/142 ,  H01J29/07 ,  Y10T29/49812

    Abstract: A metal sheet is embossed by a special embossing tool to provide regions in the sheet of minimum thickness at the intended aperture locations thereon. Following embossing, the sheet is shaped into a desired mask contour and the embossed side of the sheet is coated with a stop-off substance to prevent subsequent removal of material from that side. The regions of minimum thickness are then removed, such as by etching the uncoated side of the sheet, to provide the apertures.

    Abstract translation: 通过特殊压花工具对金属板进行压花，以在其上的预定孔径位置处提供最小厚度的片材区域。 在压花之后，将片材成形为期望的掩模轮廓，并且片材的压纹侧涂覆有停止物质以防止随后从该侧移除材料。 然后去除最小厚度的区域，例如通过蚀刻片材的未涂覆侧面以提供孔。

    Method of producing a color kinescope
    2.
    发明授权
    Method of producing a color kinescope 失效
    生产色彩鲜艳的方法

    公开(公告)号：US3631576A

    公开(公告)日：1972-01-04

    申请号：US3631576D

    申请日：1970-03-17

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL ,  LEE RAY HUI-CHUNG

    IPC: H01J9/14 ,  H01J9/16 ,  H01J9/44

    CPC classification number: H01J9/144

    Abstract: A method for producing a color kinescope having an image screen and a color-selection mask comprising final-size apertures. The method includes the steps of providing at least one perforated resist layer on a metal substrate and removing through the perforations of the resist layer both certain portions of the substrate so as to provide corridors of a given size through the substrate and other portions of the substrate adjacent to the corridors, so as to provide recesses extending only partially through the substrate thereby producing a preliminary mask. The image screen is produced with the preliminary mask, and, then, portions of the substrate located beneath the various recesses are removed so as to produce a color-selection mask comprising final-size apertures of larger size than the corridors. The color selection mask is then incorporated in a kinescope.

    Abstract translation: 一种用于制造具有图像屏幕和包括最终尺寸孔径的颜色选择掩模的彩色显像管的方法。 该方法包括以下步骤：在金属基底上提供至少一个穿孔的抗蚀剂层，并且通过基底的某些部分去除抗蚀剂层的穿孔，从而通过基底和基底的其它部分提供给定尺寸的走廊 邻近走廊，以便提供仅部分延伸通过基底的凹槽，从而产生预备掩模。 用初步掩模制造图像屏幕，然后去除位于各种凹部下方的基板的部分，以便产生包括比走廊尺寸更大的最终尺寸的孔的选色掩模。 然后将颜色选择面罩并入显像管。

    4.
    发明专利
    未知

    公开(公告)号：DE2249805A1

    公开(公告)日：1973-04-19

    申请号：DE2249805

    申请日：1972-10-11

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL

    IPC: H01J9/14 ,  H01J9/20

    Abstract: Each of the final-sized apertures of an apertured-mask for a cathode-ray tube is closed with a film of an organic material. The central portion of the film closing each final-sized aperture is then opened so as to provide a temporary aperture smaller than the final-sized aperture. An image-screen structure is then photodeposited using the mask with the smaller temporary apertures as a photographic master. After the screen structure is deposited, the organic material is removed to restore the permanent mask with the larger final-sized apertures therein for use in the cathode-ray tube.

    5.
    发明专利
    未知

    公开(公告)号：DE862914C

    公开(公告)日：1953-01-15

    申请号：DER0005564

    申请日：1951-03-14

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL

    IPC: H01J9/227

    Abstract: 702,468. Cathode-ray tubes. RADIO CORPORATION OF AMERICA April 27, 1951 [April 28, 1950], No. 9946/51. Class 39(1) In a cathode-ray tube for colour television in which one or more electron beams scan a threecolour target 5 through an apertured mask, the target has phosphor areas, corresponding to each colour, of the same shape and pattern as the apertures in the mask 4. To realize that pattern on the target, a jig is set up in which a light source corresponds to an electron gun, and a photographic plate to the target. Light directed through the mask on to the photographic plate discloses the required pattern. Instead of light, electrons may be used, the apparatus being mounted in an evacuable chamber. A stencil is then prepared from the photographic plate, and is used either in a settling process, or in a silk screen printing process to form the required phosphor pattern on the target. By movement of the stencil to each of three positions in turn, the three patterns corresponding to the three colours are laid down. The target is then mounted in place of the photographic plate on the back of the frame on which the mask is mounted. Centring masks on the mask and target, photographically recorded, serve as an aid in positioning the target on the frame. The correct position is tested by observing the pattern of light passing through the mask. The mask is mounted on the metal frame so as to be taut. This is effected by clamping the mask to the frame and expanding it by heating. In clamping the glass target to the metal frame holes are provided to allow for differential expansion when, in sealing and evacuating the cathode-ray tube, the frame and other metal parts are heated. The frame supported mask and target assembly 4-5, is then transferred to a smaller jig 52 by which the assembly is mounted in the cathode-ray tube. After orientating the electron gun, or battery of guns 1, 2, 3 at the precise angle or angles required with the aid of an auxiliary jig 59 the correct orientation is recorded by making reference lines 65 on one of the gun barrels, and on the neck of the tube. The tube neck 10 is then removed, and the target assembly fixed in position. The jigs are removed, and the tube neck is then sealed to the tube body 6 in its correct position by use of the reference lines. The conductive coatings 68 on the tube neck and body part are connected across the join by conductive strips extending between the terminals 67, 70 for the coatings.

    6.
    发明专利
    未知

    公开(公告)号：DE2223015A1

    公开(公告)日：1973-07-19

    申请号：DE2223015

    申请日：1972-05-10

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL

    IPC: H01J9/227 ,  H01J9/22

    Abstract: A substantially continuous line screen structure pattern is formed in a color television picture tube having an interrupted-aperture shadow mask by applying a photosensitive material to a screen support and projecting light from an extended source through the shadow mask apertures and onto the coated screen support. In a preferred embodiment, the line screen is formed by projecting light from a line source through a shadow mask having a plurality of rows of elongated apertures and onto the coated screen support.

    8.
    发明专利
    未知

    公开(公告)号：DE1130938B

    公开(公告)日：1962-06-07

    申请号：DER0028280

    申请日：1960-07-06

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL

    IPC: H01J29/80

    9.
    发明专利
    未知

    公开(公告)号：DE2331535A1

    公开(公告)日：1974-01-17

    申请号：DE2331535

    申请日：1973-06-20

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL

    IPC: C23F1/04 ,  H01J9/14 ,  H01J29/07

    Abstract: A metal sheet is embossed by a special embossing tool to provide regions in the sheet of minimum thickness at the intended aperture locations thereon. Following embossing, the sheet is shaped into a desired mask contour and the embossed side of the sheet is coated with a stop-off substance to prevent subsequent removal of material from that side. The regions of minimum thickness are then removed, such as by etching the uncoated side of the sheet, to provide the apertures.

    10.
    发明专利
    未知

    公开(公告)号：DE2255208A1

    公开(公告)日：1973-05-17

    申请号：DE2255208

    申请日：1972-11-10

    Applicant: RCA CORP

    Inventor： LAW HAROLD BELL

    IPC: H01J9/14 ,  H01J29/80 ,  H01J29/86 ,  H01J29/58

    Abstract: Prior to assembly of the envelope of a focus grill tube, the cup-shaped panel portion of the envelope is wound with a wire helix which is disposed around and along the panel, each turn of the helix extending across the open side of the panel in predisposed relation with a pattern of phosphor strips on the bottom wall of the panel. Preferably, the helix turns are disposed in grooves in the end surface of the side wall of the panel, and portions of each helix turn are disposed about a member having a thermal expansion greater than that of the helix wire.

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