Half bepowdering method for fluorescent lamp tube

A technology for fluorescent tubes and fluorescent powder, which is applied in the processing of fluorescent tubes and half-coating of fluorescent tubes. It can solve the problems of not considering the length and shape of the tubes, and can not be used, so as to save fluorescent powder, improve utilization rate, spectrally rich effect

Inactive Publication Date: 2006-04-26
陈宗烈
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Problems solved by technology

[0003] The technical problem in the prior art to be solved by the present invention is: because in the prior art, the length and the shape characteristics of the lamp tube are not considered when the fluorescent powder is coated on the inner wall of the lamp tube, the whole tube is coated with powder, using this method, The visible light generated by the lamp tube is attenuated by more than 20% when it penetrates the powder layer on the tube wall, and a dark blue visible light emitted by mercury vapor when it is ionized is also absorbed by the fluorescent powder and cannot be used.

Method used

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  • Half bepowdering method for fluorescent lamp tube
  • Half bepowdering method for fluorescent lamp tube

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Embodiment Construction

[0014] Such as figure 1 and figure 2 As shown, a method for semi-powdering a fluorescent lamp tube of the present invention includes the first step of cleaning and drying the glass tube 1, the second step of coating the glass tube 1 wall with an aluminum oxide powder protective film and drying it, The third step of coating the inner wall of the glass tube 1 with phosphor powder and the fourth step of baking the glass tube 1 coated with phosphor powder, wherein, in the first step of coating the inner wall of the glass tube 1 with phosphor powder In the third step, the phosphor powder is coated on part of the inner wall of the glass tube 1, and a light-transmitting area 2 is reserved on the remaining part of the inner wall of the glass tube 1, and the light-transmitting area 2 is isolated from the phosphor powder.

[0015] Further, the length direction of the light-transmitting region 2 is parallel to the axial direction of the glass tube 1, and the width of the curved surface...

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Abstract

The semi-coat powder method for fluorescent tube comprises: first, cleaning and baking the glass tube; second, coating alumina powder protection membrane on tube inner wall; third, coating fluorescent powder partly on tube inner wall to reserve a translucent zone toward object side with arc surface width as one sixth to fourth of tube cross-section perimeter and isolated to fluorescent powder; fourth, baking the tube and clearing powder. This invention reduces efficiently the effect that light ray is absorbed by fluorescent powder, increases luminous efficiency, saves energy more than 20%, and enriches spectrum of light ray.

Description

technical field [0001] The invention relates to the processing technology of the lamp tube, in particular to the processing method of the fluorescent lamp tube, in particular to a method for half-coating the fluorescent lamp tube with powder. Background technique [0002] In the prior art, the principle of luminescence of low-voltage electrical discharge fluorescent lamps is: after the mercury vapor in the lamp tube is ionized, it releases 253.7nm ultraviolet light when it is de-excited, and the ultraviolet light bombards the fluorescent powder coated on the inner wall of the lamp tube to emit visible light. Implement lighting. In the prior art, the length and shape characteristics of the lamp tube are not considered when coating the inner wall of the lamp tube with powder, and the entire tube is coated with powder. Using this method, the visible light generated by the lamp tube is attenuated when it penetrates the powder layer on the tube wall It is more than 20%, and a da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/20H01J9/22
Inventor 陈宗烈
Owner 陈宗烈
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