JPS6417375A - Fluorescent lamp - Google Patents

Abstract

PURPOSE:To make an extrusion part from a display screen reducible by bending both tube ends of a fluorescent lamp being other than the display screen inside inward or outward so as to go along the display screen almost orthogonally. CONSTITUTION:A lamp 1 is formed into structure where a tube end exists at one side, for example, as into U-shaped, W-shaped forms and so on, and the tube end is bent inward or outward almost orthogonally on a plane surface of the lamp 1 at a spot nearer to the central part as much as anout 5-10mm from an electrode 3 especially at the tube end of the lamp 1. The electrode 3 is situated in at least outside of a display screen 2, and since the bent part is situated nearer to the central part than the electrode 3, such a Faraday dark space that is inevitably produced at discharge exists at the outside of the screen, and at the part entered in the screen inside, surface brightness of the lamp 1 can be almost uniformized. With this constitution, variations in luminance on the screen can be reduced, and an extrusion size from the screen is formable in one direction among four directions of the screen, but the size can be checked by tube diametral dimensions of the lamp.