Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cold cathode type fluorescent lamp

A technology of cold cathode and fluorescent lamps, which is applied in the direction of discharge lamps, gas discharge lamps, parts of gas discharge lamps, etc. It can solve the problems of inability to install, small size, luminous intensity, and inability to be widely used, so as to prolong the service life and high The effect of discharge efficiency

Inactive Publication Date: 2004-07-21
希拉技术公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, because the size of the conventional CCFL 50 is small and limited by the luminous intensity, the conventional CCFL 50 cannot be widely used and cannot be installed in places where strong light is required, although it can be applied to small lighting occasions such as optical system or computer screen lighting. lighting occasions

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
  • Cold cathode type fluorescent lamp
  • Cold cathode type fluorescent lamp
  • Cold cathode type fluorescent lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 3 is a projected perspective view showing a cold cathode type fluorescent lamp according to a first embodiment of the present invention, and Figure 4 It is a partial enlarged sectional view showing the first base of the cold cathode fluorescent lamp shown in FIG. 3 .

[0053] Referring to Figure 3 and Figure 4 , the cold cathode fluorescent lamp 100 has a fluorescent tube 105, a first base 110, a second base 115, a first electrode 120, a second electrode 125, a first lead 130, a second lead 135, a first electron emission element 140, The second electron emission element 143 , the discharge enhancement element 145 and the discharge gas 150 .

[0054] According to the energy consumption of the cold cathode type fluorescent lamp 100, the diameter of the fluorescent tube 105 is about 8 to 17 mm, and the length is about 600 to 1,600 mm. Fluorescent material is coated on the inner wall of the fluorescent tube 105 , and the discharge gas 150 is uniformly filled in the fluo...

Embodiment 2

[0076] Figure 5 is a sectional view showing a cold cathode type fluorescent lamp according to a second embodiment of the present invention.

[0077] refer to Figure 5 , the cold cathode fluorescent lamp 200 of this embodiment includes a fluorescent tube 205 , a first base 210 , a first electrode 220 , a first lead 230 , a first electron emission element 240 , a discharge gas 250 and a fixing element 265 .

[0078] In this embodiment, the second base and the second lead are the same as those in the first embodiment, and therefore, descriptions of these elements are omitted. In addition, the fluorescent material coated on the inner wall of the fluorescent tube 205 and the discharge gas 250 filled into the fluorescent tube 205 are also the same as those in the first embodiment.

[0079] The first electrode 210 generally has a cross-sectional shape of "T". Both ends of the first electrode 210 extend toward the inner wall of the fluorescent tube 205 . The first electron emiss...

Embodiment 3

[0084] Figure 6 is a sectional view showing a cold cathode type fluorescent lamp according to a third embodiment of the present invention.

[0085] refer to Figure 6 , the cold cathode fluorescent lamp 300 of this embodiment has a fluorescent tube 305, a first base 310, a first electrode 320, a pair of first lead wires 330 and 331, a first electron emission element 340, a discharge enhancing element 345, a discharge gas 350 and fixing element 365 .

[0086] In this embodiment, the fluorescent material coated on the inner wall of the fluorescent tube 305 and the discharge gas 350 filled in the fluorescent tube 305 are the same as those in the first embodiment. The second base, the second electrode, and the second electron-emitting element are also the same as those of the first embodiment, so descriptions of these elements are omitted.

[0087] According to the present embodiment, the CCFL 300 can be applied to a conventional fluorescent lamp receiving structure without ch...

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

No PUM Login to View More

Abstract

The invention discloses a cold cathode type fluorescent lamp having long service life and working at low voltage. The lamp includes fluorescent tube with fluorescent material formed on it. Discharging gases include mercury vapor in approximate ratio 1:0.6 and vapor of inert gases in approximate ratio 1:2.0. First and second bases are installed at two ends of the fluorescent tube, and first electrode and second electrode are setup inside the fluorescent tube. First electron emission element is fixed on the first electrode, and second electron emission element is fixed on the second electrode. The cold cathode type fluorescent lamp can be operated immediately without need of preheating electrode. Moreover, when electron emission element is disconnected, the fluorescent lamp works still on. Thus, service life of the cold cathode type fluorescent lamp is raised greatly. The cold cathode type fluorescent lamp provides enough luminous intensity, being capable of utilized in diversified occasion such as traffic light or street lighting lamp.

Description

technical field [0001] The present invention relates to a cold-cathode fluorescent lamp, in particular to a cold-cathode fluorescent lamp which has sufficient luminous intensity and greatly extended service life while being economically produced and conveniently maintained. Background technique [0002] Generally, a conventional fluorescent lamp has a glass tube whose inner wall is coated with a fluorescent material and filled with mercury (Hg) vapor. The mercury vapor emits ultraviolet rays, and the fluorescent material emits visible light after receiving the ultraviolet rays emitted by the mercury vapor. Fluorescent lamps display different colors depending on the type of fluorescent material. Mercury vapor and argon vapor are filled in a glass tube of a fluorescent lamp so that ultraviolet rays are generated by applying electrons emitted from a filament to the mercury vapor and argon vapor. Filaments are available with double or triple coils. The surface of the filament...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/00H01J61/067H01J61/16H01J61/20
Inventor 徐晓明
Owner 希拉技术公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com