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Light source

A light source and light tube technology, applied in the field of light source with external electrodes, can solve the problems of small holding force of the storage tank, poor electrical connection, easy loosening or rotation of the light tube, etc., and achieve stable electrical connection and tight fixation Effect

Inactive Publication Date: 2010-05-19
CORETRONIC (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, after the lamp tube is engaged in the receiving groove, since the lamp tube 20 and the receiving groove 22 are both cylindrical, if the size of the receiving groove is slightly larger than the diameter of the lamp tube due to manufacturing factors, or When the lamp tube is subjected to vibration or impact from the outside, or the locking force of these receiving grooves becomes smaller after repeated snapping and pulling out, the lamp tube is easily loosened or rotated in the receiving groove, which may cause When the electrical connection between the storage tank 22 and the electrode 21 is poor

Method used

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Embodiment Construction

[0014] The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.

[0015] Please refer to Figure 3 to Figure 5 As shown, an embodiment of the light source of the present invention is shown, the light source 100 of the present invention is, for example, an external electrode fluorescent lamp, and of course the present invention may also be a cold cathode fluorescent lamp. The light source of the present invention can be applied in a backlight module, especially a direct type backlight module.

[0016] According to an embodiment of the present invention, the light source 100 includes a cylindrical lamp tube portion 2 and two electrodes 1 , and can be accommodated in a receiving groove 3 provided on a bottom plate 8 . The electrode 1 is combined with the end periphery of the la...

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Abstract

The invention discloses a lamp source which can be housed in an accommodation groove arranged on a soleplate. The lamp source comprises a lamp tube part and at least one electrode. The lamp tube partis cylindrical. The electrode, combined at the periphery of one end of the lamp tube part, is composed of an electrode main body and a retainer part; wherein the electrode main body is housed in the accommodation groove; and the retainer part is arranged around the external surface of the electrode main body and forms at least one platform which contacts with the soleplate. The lamp source can prevent the lamp tube and the electrode from revolving inside the accommodation groove; therefore, the electrode and the accommodation groove of the lamp source can be tightly fixed, thereby, electric connection is stable.

Description

【Technical field】 [0001] The present invention relates to a light source, in particular to a light source with external electrodes. 【Background technique】 [0002] At present, cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp, CCFL) is widely used in many fields as a light source with stable electrical and optical characteristics, long life, shock resistance, and impact resistance. The internal lead of the glass fluorescent tube is a built-in electrode. Another new type of light source is the External Electrode Fluorescent Lamp (EEFL), which is the same as the cold cathode fluorescent lamp as a slender cylindrical lamp tube. The biggest difference between the two is that the external electrode fluorescent lamp is an external electrode. The electrodes are wrapped and enveloped on the outside of the glass fluorescent tube. The external electrode fluorescent lamp has the advantages of less required number of driving devices, high luminous efficiency, and low heat. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J65/04F21V19/00
Inventor 上田昭一
Owner CORETRONIC (SUZHOU) CO LTD