Richard H Bauder

US Patent:

47483717, May 31, 1988

Filed:

Feb 10, 1987

Appl. No.:

7/013090

Inventors:

Richard C. Bauder - Millersville PA

Assignee:

RCA Licensing Corporation - Princeton NJ

International Classification:

H01J 2907

US Classification:

313407

Abstract:

A cathode-ray tube includes a shadow mask having an array of apertures mounted adjacent a substantially rectangular faceplate panel with curvature along major and minor axes orthogonal to each other and to a central longitudinal axis passing through the center of the faceplate panel. The shadow mask has a border of varying width disposed between the perimeter of the apertured array and a bend line adjoining a peripheral mask skirt which substantially parallels the central axis and is supported by a shadow-mask frame oriented orthogonally to the central axis. The width of the border is narrow at the major axis, being no greater than five percent of the distance from the minor axis to the bend line along the major axis.

US Patent:

50217070, Jun 4, 1991

Filed:

Nov 17, 1989

Appl. No.:

7/437577

Inventors:

Richard C. Bauder - Lancaster PA

Assignee:

RCA Licensing Corporation - Princeton NJ

International Classification:

H01J 2907

US Classification:

313402

Abstract:

An improved color picture tube includes a rectangular faceplate panel having two long sides and two short sides. A rectangular shadow mask is suspended at its four corners by support means within the panel adjacent to a cathodoluminescent screen located on the panel. The tube has three principal axes that are mutually orthogonal to each other. These axes include a longitudinal axis which extends through the center of the tube perpendicularly to the center of the panel, a major axis which passes through the center of the panel paralleling the long sides of the panel, and a minor axis which passes through the center of the panel paralleling the short sides of the panel. Each of the support means has a central support axis. The improvement comprises the two support axes on each side of the minor axis crossing a plane containing the longitudinal and major axes at a point located between the minor axis and a short side of the panel.

US Patent:

53091892, May 3, 1994

Filed:

Aug 14, 1992

Appl. No.:

7/929223

Inventors:

Bruce G. Marks - Lancaster PA
Andrew Good - Reamstown PA
Frank R. Ragland - Lancaster PA
Richard C. Bauder - Millersville PA

Assignee:

Thomson Consumer Electronics, Inc. - Indianapolis IN

International Classification:

G03B 4100
G03C 500

US Classification:

354 1

Abstract:

The present invention is an improvement in a method of screening a line screen slit mask color picture tube that includes coating a faceplate panel of the tube with a photosensitive material, inserting a slit shadow mask into the panel and exposing the photosensitive material by passing light from a line light source through a misregister correction lens and through the slits of the mask. The improvement comprises positioning a skew correction lens between the line light source and the misregister correction lens during exposure of the photosensitive material. The skew correction lens has a surface with a general overall cylindrical shape with deviations from the cylindrical shape being in the four corners of the skew correction lens.