Abstract: A vehicle cowl structure includes a cowl box including a closed cross-section, an inclined holding surface configured to hold a lower end portion of a windshield, an upper wall extending toward an interior of a vehicle cabin from an upper end of the holding surface, a vertical wall extending downward from an inside end of the upper wall, a bottom wall extending toward a front portion of the vehicle from a lower end of the vertical wall, and a recessed portion formed on the upper wall extending in a direction of the width of the vehicle, wherein the recessed portion is depressed toward an inside of the cowl box and is smoothly curved from the windshield holding surface to the vertical wall.

Abstract: A vehicle cowl structure includes a cowl box including a closed cross-section, an inclined holding surface configured to hold a lower end portion of a windshield, an upper wall extending toward an interior of a vehicle cabin from an upper end of the holding surface, a vertical wall extending downward from an inside end of the upper wall, a bottom wall extending toward a front portion of the vehicle from a lower end of the vertical wall, and a recessed portion formed on the upper wall extending in a direction of the width of the vehicle, wherein the recessed portion is depressed toward an inside of the cowl box and is smoothly curved from the windshield holding surface to the vertical wall.

Abstract: In an internal magnetic shield (28) that is substantially in a shape of a hollow truncated pyramid which is rectangular in a cross section, and has a small diameter opening on the side of an electron gun, the short edges (52 and 54) at the small diameter opening are formed in the shape of an inverted trapezoid that drops toward the panel, and the long edges (56 and 58) are formed in the shape of an obtuse-angled isosceles triangle that rises toward the electron gun.

Abstract: In a cathode ray tube including a panel provided with a phosphor screen, a funnel integrated with the panel, an electron gun disposed inside the funnel, a magnetic shield (1) for shielding an electron beam (5) emitted from the electron gun against an external magnetic field, and a frame (2) for holding the magnetic shield (1), the magnetic shield (1) includes, at a portion to be joined with the frame (2), a bent portion (20) bent toward a tube axis side, and a thickness T of the bent portion (20) at its edge on the tube axis side is 0.08 mm or less. By making the thickness T small, halation that is liable to occur in a cathode ray tube with a large deflection angle can be suppressed because electron beams reflected from an end face (11) and allowed to reach the screen without being shielded by the frame (2) are reduced.

Abstract: A color cathode-ray tube includes a shadow mask (20) stretched and held with tension applied thereto in one direction. The shadow mask is made of an Invar material. A stress generated in the shadow mask by the tension is 32 MPa or more in a range of ±20 mm with respect to a center position of the shadow mask in a direction orthogonal to a direction in which the tension is applied, and is 26 MPa or more outside the range. By stretching the shadow mask under this stress condition, magnetic shield characteristics are enhanced, and mislanding of an electron beam can be reduced. As a result, a satisfactory color image display can be obtained.

Abstract: A color cathode-ray tube includes a shadow mask (20) stretched and held with tension applied thereto in one direction. The shadow mask is made of an Invar material. A stress generated in the shadow mask by the tension is 32 MPa or more in a range of ±20 mm with respect to a center position of the shadow mask in a direction orthogonal to a direction in which the tension is applied, and is 26 MPa or more outside the range. By stretching the shadow mask under this stress condition, magnetic shield characteristics are enhanced, and mislanding of an electron beam can be reduced. As a result, a satisfactory color image display can be obtained.

Abstract: In a cathode ray tube including a panel provided with a phosphor screen, a funnel integrated with the panel, an electron gun disposed inside the funnel, a magnetic shield (1) for shielding an electron beam (5) emitted from the electron gun against an external magnetic field, and a frame (2) for holding the magnetic shield (1), the magnetic shield (1) includes, at a portion to be joined with the frame (2), a bent portion (20) bent toward a tube axis side, and a thickness T of the bent portion (20) at its edge on the tube axis side is 0.08 mm or less. By making the thickness T small, halation that is liable to occur in a cathode ray tube with a large deflection angle can be suppressed because electron beams reflected from an end face (11) and allowed to reach the screen without being shielded by the frame (2) are reduced.