A field emission device

Abstract

This invention discloses a field emission device, comprising a first housing, a second housing, a third housing, a first rotation shaft, a second rotation shaft and gas electronic sources. The third housing is embedded in the second housing; the second housing is embedded in the first housing; the first rotation shaft and the second rotation shaft are embedded in the third housing; the first housing comprises a first basal plate, a first anode layer and a first fluorescent layer from the outside to the inside; the second housing comprises a first cathode layer, a second basal plate, a second cathode layer and a second fluorescent layer from the outside to the inside; the third housing comprises a second cathode layer and a third basal plate; the first rotation shaft is used for driving the first housing to rotate; the second rotation shaft is used for driving the second housing to rotate; the first rotation shaft and the second rotation shaft have different rotation palstances; the gas electronic sources fill the first housing and the second housing and a cavity between the second housing and the third housing. The field emission device reduces the difficulties and cost of traditional preparation technology, the light and color are multiple and easy to change, the structure is easy, the practicability is high, and field emission device is applicable to novel decorative light fixtures.

Description

technical field [0001] The invention relates to the field of illumination light sources, in particular to a field emission device. Background technique [0002] Field Emission Device (Field Emission Device) is a new light source device. Because of its advantages of uniform, thin and surface light source, it has been widely used in decoration, display, lighting equipment and microwave components, and has huge applications. potential. [0003] The light-emitting principle of the existing field emission device is that in a vacuum environment, the electrons emitted by the electron emitter on the cathode plate are attracted by the positive voltage on the anode plate, thereby accelerating the movement, bombarding the phosphor on the anode plate, and then emitting visible light. However, at present, the preparation technology of field emission devices is difficult, the cost is high, the production efficiency is low, and the finished field emission devices have poor luminous unifor...

AI Technical Summary

Problems solved by technology

However, the current preparation technology of field emission devices is difficult, the cost is high, the production efficiency is low, and the finished field emission devices have poor luminous uniformity.

[0004] Existing field emission devices mainly achieve the purpose of decoration by changing their light color, but the form of common field emission devices used for decorative lamps is still relatively monotonous, can only produce a single color, and usually requires a complex drive system

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