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excimer lamp

A technology for excimer lamps and discharge capacitors, which is applied in the direction of discharge lamps, parts of gas discharge lamps, electrical components, etc., can solve the problems of low luminous efficiency and light quantity deterioration of mercury lamps, and improve the starting characteristics and improve the starting characteristics. Effect

Active Publication Date: 2017-07-04
USHIO DENKI KK
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In the past, most of the ultraviolet lamps used low-pressure mercury lamps, but mercury lamps have low luminous efficiency in low-temperature environments, which also leads to poor light output.

Method used

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Examples

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experiment example

[0042] First, according to the following conditions, a figure 2 (a) Structure of the excimer lamp (Example 1).

[0043] Discharge vessel (1): total length 200mm, outer diameter φ10mm

[0044] End head (2): outer diameter φ6mm

[0045] External electrode (11): metal bare wire diameter 0.2mm

[0046] Internal electrode (12): The outer diameter of the electrode is 2mm

[0047] Phosphor (13): LaPO 4 : Pr

[0048] Enclosed gas: Xe13kPa

[0049] Then, fabricate the external electrodes with figure 2 Except the structure of (b), it is the excimer lamp of the same structure as Example 1 (Example 2). Embodiment 2 densely arranges bare wires constituting external electrodes in the outer surface of the tip portion.

[0050] In addition, for comparison, an excimer lamp in which an external electrode was not provided on the outer surface of the tip portion was produced (comparative example 1). The structures of the discharge vessel, the end portion, and the internal electrodes ar...

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Abstract

The present invention provides an excimer lamp which radiates ultraviolet rays by inducing excimer to discharge in a discharge container, can suppress generation of ozone and radiate ultraviolet light useful for sterilization and plays a superior starting characteristic. The excimer lamp is provided with a long size discharge container, an end head part formed by protruding from one end part of the discharge container, and a seal part formed at the other end part of the discharge container. An internal electrode arranged in the discharge container and an external electrode arranged out of the discharge container are used as a pair of electrodes, excimer illuminating gas is sealed in the discharge container. The excimer lamp is characterized in that a phosphor enabling the ultraviolet rays to light is arranged on the inner wall of the discharge container; the internal electrode extends along a tube axis of the discharge container; one end of the internal electrode is guided in the end head part; the other end of the internal electrode is embedded in the seal part; and the external electrode extends continuously from the discharge container and is arranged at the end head part.

Description

technical field [0001] The present invention relates to an excimer lamp that induces excimer discharge inside a discharge vessel to emit ultraviolet rays, and more particularly relates to an excimer lamp that has external electrodes disposed on the outer wall of the discharge vessel and internal electrodes disposed inside the discharge vessel. Background technique [0002] If the food is stored in the refrigerator for a long time, the food may be corroded and gas may be generated, causing bacterial growth, odor, and adverse effects on other foods in the refrigerator. Therefore, ultraviolet lamps are often used as means for sterilizing bacteria that multiply in the refrigerator. [0003] In the past, low-pressure mercury lamps were mostly used as ultraviolet lamps. However, mercury lamps have low luminous efficiency in low-temperature environments, which also leads to poor light output. Therefore, excimer lamps have attracted attention as an alternative light source. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J65/00H01J61/54H01J61/06
Inventor 朝山淳哉谷野贤二田川幸治
Owner USHIO DENKI KK
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