Abstract: The color-separating electrode structure for use in a color CRT includes a color-separating electrode body which is substantially rectangular in form and fixed in a tensioned condition to a frame made by a sheet metal bending or flexing process. The frame includes two supporting parts opposed to each other, each of the supporting parts having a flexed portion that extends in parallel to an upper edge and a lower edge of the color-separating electrode body and has a predetermined curvature. The color-separating electrode body is welded to the frame at contact portions thereof each of which is in contact with corresponding one of the flexed portions of the supporting parts.

Abstract: In a method of manufacturing a color-separating electrode structure for color cathode ray tube, welding is performed by rolling a roller electrode with a rotation shaft being tilted so that an electrode surface of the roller electrode faces to an inside of a substantially rectangular frame, and by pressing a pressing roller to a portion defined as the portion of an outside of a contact portion in which an outer edge portion of an upper surface of the side of the frame is kept in contact with a rear surface of the color-separating electrode, both the roller electrodes and the pressing rollers being rolled together along the contact portion, whereby the color-separating electrode structure having sufficient welding strength can be obtained with higher stability.

Abstract: A leading fiber penetrates through a holding element and is optically coupled to an optical element placed in a package. An external cord fiber longer than the leading fiber passes a through hole of a glass sleeve and is connected to the leading fiber to form an optical fiber composed of the leading fiber and the external cord fiber. The holding element is inserted into the glass sleeve to place a fusion-spliced portion between the leading fiber and the external cord fiber in the through hole of the glass sleeve. UV hardening resin hardened by receiving ultraviolet rays is packed and hardened in the through hole of the glass sleeve to cover the fusion-spliced portion with the UV hardening resin and the glass sleeve.