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Gas discharge tube

A gas discharge tube and gas sealing technology, which is applied to gas discharge lamps, parts of gas discharge lamps, discharge lamps, etc., can solve problems such as narrow discharge circuits

Inactive Publication Date: 2004-03-03
HAMAMATSU PHOTONICS KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the gas (deuterium) discharge tube described in this publication, two metal separators are arranged on the discharge path of the anode and the cathode, and a small hole is formed on each metal separator, and the discharge circuit is narrowed by passing through the small hole.

Method used

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  • Gas discharge tube
  • Gas discharge tube
  • Gas discharge tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] As shown in Fig. 1 and Fig. 2, the gas discharge tube 1 is an end window type deuterium lamp. Shaped side tube 3, a light exit window 4 that seals one side of the side tube 3, and a base 5 that seals the other side of the side tube 3. Furthermore, the light emitting unit assembly 6 is accommodated in the airtight container 2 .

[0025] This light emitting unit assembly 6 has a disk-shaped base 7 made of electrically insulating ceramics, and an anode plate (anode portion) 8 is held on the base 7 . The anode plate 8 is separated from the base portion 7 and is electrically connected to the top end portions of base lead wires (not shown) which are erected on the base 5 and extend in the tube axis G direction.

[0026] The light emitting unit assembly 6 has a disk-shaped converging electrode support unit 10 made of electrically insulating ceramics. The converging electrode support portion 10 is arranged to overlap the base portion 7 and has the same diameter as the base po...

Embodiment 2

[0044] Such as Figure 6 As shown, the gas discharge tube 40 is a side window type deuterium lamp, and this discharge tube 40 has a glass-made airtight container 42 in which deuterium of about several hundred Pa is sealed. The airtight container 42 is composed of a cylindrical side tube 43 that seals one end side and a base (not shown) that seals the other end side of the side tube 43, and a part of the side tube 43 is used as a light exit window 44. use. Furthermore, a light emitting unit assembly 46 is accommodated in the airtight container 42 .

[0045] The light emitting unit assembly 46 has a base 47 made of electrically insulating ceramics. An anode plate (anode portion) 48 is arranged in contact with the front surface of the base portion 47, and the top end of a base lead 49 vertically provided on the base and extending in the direction of the tube axis G is electrically connected to the back of the anode plate 48.

[0046] Furthermore, the light emitting unit assemb...

Embodiment 3

[0056] Next, another embodiment of the gas discharge tube will be described, but this description will be limited to the parts that are substantially different from the first embodiment, and the same reference numerals will be used for the same or equivalent components as the first embodiment, and the description will be omitted.

[0057] Figure 7~ Figure 9 As shown, the end window type gas discharge tube 75 has an electrically insulating ceramic discharge restricting plate (discharge restricting portion) 76 which is in contact with the surface of the converging electrode portion 14 and also in contact with the converging electrode supporting portion 10 . Accordingly, the discharge limiting plate 76 can be stably supported on the converging electrode support portion 10 . Furthermore, if the discharge limiting plate 76 itself is formed of ceramics, electrical insulation between the converging electrode portion 14 and the discharge limiting plate 76 disposed adjacently can be e...

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PUM

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Abstract

In a gas discharge tube 1 of the present invention, a focusing electrode portion 14 and a discharge limiting portion 30 are electrically insulated, and the discharge limiting portion 30 comprises a discharge limiting opening 31 which opposes an arc ball shaping concave portion 16. Thus the formation of a discharge path from a cathode portion 20 to the concave portion 16 is ensured and a starting discharge can be reliably generated. Further, by means of the discharge limiting opening 31 which opposes the concave portion 16, an arc ball S can be continuously maintained in an appropriate shape even when a lamp is illuminated, and thus the arc ball S can be shaped with stability, thereby stabilizing the luminance and light quantity.

Description

technical field [0001] In particular, the present invention relates to a gas discharge tube used as a light source for a spectroscope, a chromatograph, and the like. Background technique [0002] Conventionally, there is JP-A-6-310101 as a technology in this field. In the gas (deuterium) discharge tube described in this publication, two metal separators are arranged on the discharge path of the anode and the cathode, and a small hole is formed on each metal separator, and the discharge path is narrowed by passing through the small hole. As a result, high-brightness light can be obtained through the small holes in the discharge path. Moreover, if the number of metal spacers is three or more, higher brightness is obtained, and the smaller the small holes, the higher the brightness of the obtained light. Contents of the invention [0003] However, the conventional gas discharge tube has the following problems. That is, no voltage is applied to each metal partition, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/10H01J61/68H01J61/70
CPCH01J61/70H01J61/68H01J61/10H01J61/30
Inventor 伊藤喜延河合浩司南泽强
Owner HAMAMATSU PHOTONICS KK