Fluorescent lamp tube and plane lamp

Abstract

A fluorescent lamp tube consists of a transparent lamp tube , a sealed cavity packed with gas , a pair of electrodes being set at two ends of said lamp tube , a dielectric substance fully reflecting layer set on internal wall of said lamp tube for reflecting all ultraviolet ray in sealed cavity , a fluorescent layer set on dielectric substance fully reflecting layer for reacting on with ultraviolet ray to generate visible light and a planar lamp structure with said dielectric substance fully reflecting layer .

Description

technical field [0001] The invention relates to a fluorescent lamp tube and a plane lamp, in particular to a fluorescent lamp tube and a plane lamp with a dielectric omnidirectional reflection layer. Background technique [0002] Because of its high luminous intensity and uniform luminescence, the lamp tube can be made into extremely thin and can be made into various shapes, and can also be made into a flat plate as a flat light source, so it is currently used in liquid crystal displays, scanners, and automotive instruments. It has been widely used in the fields of plate, micro-advertising light box and mirror frame production. Generally speaking, the cold cathode fluorescent lamp is usually used as the backlight of the above products, and it is a novel miniature strong light source. [0003] Conventional CCFL tubes 100 such as figure 1 As shown, there is a layer of fluorescent layer 105 on the inner wall of the transparent lamp tube 101, a pair of electrodes 103a and 103b...

AI Technical Summary

Problems solved by technology

However, the fluorescent layer 105 cannot completely absorb the ultraviolet light 209 to generate visible light, and part of the ultraviolet light 209 will be absorbed by the cavity wall and converted into heat or be consumed by penetrating the cavity wall, so that the traditional fluorescent tube 100 cannot effectively use the light generated by the excitation of the electric field. UV light

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