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High-intensity discharge lamp

A discharge lamp and high-brightness technology, applied in the direction of discharge lamps, gas discharge lamps, discharge tubes, etc., can solve the problems of high cost, cracks in the thin tube, welding and falling off of the placement part, etc., and achieve stable contact area, good starting performance, The effect of stable starting performance

Inactive Publication Date: 2012-05-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since it is difficult to connect the conductive film and the power supply line with metal leads, the connection between the conductive film and the power supply line will fall off during transportation.
[0019] In the technology described in Patent Document 8, since a metal plate is used, the contact area with the thin tube can be stably secured, and good starting performance can be obtained. , so there is a problem that the welding operation is complicated and the cost is high
In addition, there are problems such as that the welding of the facing part is peeled off due to thermal expansion of the thin tube part during lighting, or cracks are generated in the thin tube part due to the fastening stress of the metal plate.

Method used

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Examples

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Embodiment Construction

[0055] Next, metal halide lamps according to embodiments of the present invention will be described with reference to the accompanying drawings.

[0056] 1. Structure

[0057] (1) Lighting device

[0058] First, an example of a lighting device including a metal halide lamp (hereinafter also simply referred to as a "lamp") according to an embodiment will be described.

[0059] figure 1 It is an overall view of a lighting device 10 having a metal halide lamp according to this embodiment, and a part is cut away so that the inside of a lighting fixture 12 can be seen.

[0060] Lighting device 10 such as figure 1 As shown, it consists of a lighting fixture 12 and a lamp 14 mounted on the lighting fixture 12 . In addition, although this lighting fixture 12 is for a spotlight, the metal halide lamp of embodiment is also mounted and used in the lighting fixture of other uses, such as so-called base lighting (base light).

[0061] The lighting fixture 12 has a reflector 16 that refl...

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PUM

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Abstract

Disclosed is a high-intensity discharge lamp provided with: a light-emission tube (30) comprising a pair of narrow tube sections (46) on the two ends of a main tube section; and a contact conductor (78) that has a band-shaped metal sheet. In said contact conductor (78), the part of the metal sheet from the lengthwise middle thereof to just before one end is a grip section (92) shaped so as to be able to grip the outer surface of one of the narrow tube sections (46). One end of the grip section (92) is free. The grip section is provided around the outer circumference of that narrow tube section (46), in contact with the outer surface thereof, and can elastically deform in accordance with increases in the diameter of that narrow tube section (46).

Description

technical field [0001] The present invention relates to the improvement of the starting performance of high intensity discharge lamps. Background technique [0002] As technologies for improving the starting performance of high-intensity discharge lamps such as high-pressure mercury lamps and metal vapor discharge lamps, there are, for example, a technology of encapsulating a starting performance-improving substance in an arc tube (Patent Document 1), and a technology of providing an adjacent conductor in the arc tube ( Patent Documents 2 to 8) and the like. [0003] As adjacent conductors, there are conductors using metallic wire bundles (Patent Documents 2 to 6), conductors using conductive films (Patent Document 7), conductors using metal plates (Patent Document 8), and the like. [0004] In Patent Documents 2 to 6 using a wire bundle, there are described a technique of winding a wire bundle (multiple times) into a coil shape on a thin tube portion of an arc tube, a tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/54
CPCH01J61/34H01J5/54H01J61/547H01J61/54
Inventor 打保笃志柿坂俊介田久保章夫吉田雅人金泽有岐也
Owner PANASONIC CORP
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