Patent Number: 6,885,140

Title: Color picture tube

Abstract: A color picture tube includes: a glass panel having a substantiallyrectangular-frame skirt; a rectangular frame holding a shadow mask; and asupport spring elastically supporting the frame inside the skirt and fixedto a first position at inside surface of a long side of the skirt and to asecond position at the facing outside surface of the frame. The first andsecond positions are away in horizontal axis direction perpendicular totube axis and substantially parallel to the long side. The second positionis more away from vertical axis perpendicular to tube axis and horizontalaxis than the first position. Materials for the support spring and frameare selected so that, in horizontal axis direction, thermal expansionamount of the support spring between the first and second positions issubstantially same as that of the frame between the second position andvertical axis when the tube is operated.

Inventors: Etou; Hideaki (Hirakata, JP)

Assignee:

International Classification: H01J 29/07 (20060101); H01J 029/02 (); H01J 029/07 ()

Expiration Date: 04/26/2013