Unlock instant, AI-driven research and patent intelligence for your innovation.

Built-in cold cathode glow discharge light source and producing method

A glow discharge and cold cathode technology, applied in the field of light sources, can solve the problems of difficulty in controlling and adjusting the brightness, and the inability to control the change of advertising light boxes, etc., and achieve the effect of easy dimming and strong plasticity

Inactive Publication Date: 2004-07-14
北京中科天久科技发展有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because fluorescent lamps use low voltage and high current, it is difficult to control and adjust the brightness, and it is impossible to control the change of advertising light boxes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Built-in cold cathode glow discharge light source and producing method
  • Built-in cold cathode glow discharge light source and producing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 As shown, a stem 4 with an appropriate outer diameter is selected according to the inner diameter of the glass powder tube 3, and the electrode 2 is welded on the two wires at the front end of the stem 4. Afterwards, the welded stem 4 with the electrode 2 is put into the two ends of the powder tube 3 respectively, and the stem 4 and the powder tube 3 are welded, and the stem 4 is hidden in the two ends of the powder tube 3 . The electrode 2 is made of pure iron, and nickel is plated on the surface of the pure iron, and the thickness of the nickel plating is less than or equal to 8 microns.

[0016] The production method of the present invention is described below.

[0017] Such as figure 1 As shown, select a stem 4 with an appropriate outer diameter according to the inner diameter of the glass powder tube 3, weld the electrode 2 on the two wires at the front end of the stem, adjust the coaxiality between the stem 4 and the electrode 2, and remove the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

A concealed cold-cathode glow-discharge light source includes a phosphor-coated tube, core columns at its both ends and an electrode welded on the two leads at the front of the column. Life time of the light source is 35000-50000 hours and the tube coated with three basic colors of phosphor powers can be processed into dozens of colors, widely used in inbuilt light sources of various kinds of lamp boxes.

Description

technical field [0001] The invention relates to a light source, in particular to a built-in cold cathode glow discharge light source. Background technique [0002] At present, the built-in light sources of light box advertisements all use tubular fluorescent lamps. The lifespan of fluorescent lamps is generally 2500-3000 hours. Relevant data prove that once the eyelight is turned on, it will lose 3 hours of lifespan. Therefore, the life of fluorescent lamps is generally about 2000-2500 hours. In addition, because fluorescent lamps use low-voltage and high-current, it is difficult to control and adjust the brightness, and it is impossible to control the change of advertising light boxes. Contents of the invention [0003] The object of the present invention is to provide a built-in cold cathode glow discharge light source. [0004] Another object of the present invention is to provide a method for manufacturing a built-in cold cathode glow discharge light source. [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01J61/02H01J61/04H01J61/64
Inventor 杨放光李瑶
Owner 北京中科天久科技发展有限公司