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Arc Tubes for Single-Ended Ceramic Metal Halide Lamps

A ceramic metal and halide lamp technology, applied in the field of photoelectric power supply, can solve problems such as poor output parameters, and achieve the effect of improving load capacity

Active Publication Date: 2018-04-20
NINGBO YAMAO OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, the present invention proposes a method using a-Al 2 o 3 The fired polycrystalline transparent ceramic is used as the arc tube of the single-ended ceramic metal halide lamp in the cavity, which effectively solves the technical problem of poor output parameters of existing similar products

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  • Arc Tubes for Single-Ended Ceramic Metal Halide Lamps
  • Arc Tubes for Single-Ended Ceramic Metal Halide Lamps
  • Arc Tubes for Single-Ended Ceramic Metal Halide Lamps

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Embodiment Construction

[0021] In the following, the present invention will be described in detail and specifically through specific examples, so as to better understand the present invention, but the following examples do not limit the scope of the present invention.

[0022] Such as Figure 1-3 As shown, this embodiment provides a single-ended ceramic metal halide lamp arc tube, which includes an open cavity 1, a capillary 2 arranged at the top of the hemisphere of the cavity 1, and a capillary 2 arranged at the opening of the cavity 1. Stepped ceramic plug 3, two emitter electrodes 4 are fixedly installed on the ceramic plug 3, and the cavity 1 is filled with halide, mercury 6 and starting gas 7 through the capillary 2.

[0023] The key point of the design of this embodiment is that two emitter electrodes 4 are arranged on the ceramic plug 3 on one end surface of the cavity body 1. The emitter electrode 4 is composed of an electrode and a porcelain tube. The distance between the two emitter electr...

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Abstract

Disclosed in the invention is a single-ended ceramic metal halide lamp arc tube comprising an open cavity (1), a capillary tube (2) arranged on the top of a hemisphere of the cavity (1), and a stepped ceramic plug (3) arranged at the opening of the cavity (1). Two emitter electrodes (4) are fixedly installed on the ceramic plug (3). And the cavity (1) is filled with halide, mercury (6), and starting gas (7) through the capillary tube (2). According to the invention, the load capacity and cold-end temperature of the arc tube are improved effectively; and luminous efficiency and color rendering index improvement of the product is promoted. Moreover, on the basis of the single-ended arc tube structure, the lamp assembling and lamp grading can be realized well, so that an energy saving effect is realized.

Description

technical field [0001] The invention belongs to the technical field of light sources, and in particular relates to an arc tube of a single-ended ceramic metal halide lamp. Background technique [0002] At present, the metal halide lamp arc tube uses quartz as the cavity of the arc tube. The defect of the quartz as the arc tube cavity is that the load of the cavity is low, and the surface load of the quartz tube is too high to cause the surface temperature to rise, and the deformation temperature of the quartz itself 1120°C, softening temperature 1683°C, and operating temperature below 1100°C. From the data, it can be concluded that the load design of the quartz cavity should not exceed 1100°C, but the optimal vaporization temperature of the different halides filled in the cavity is 1400°C, 2080°C ℃, etc., because the temperature in the cavity cannot meet the gasification temperature point required by the halide, resulting in low luminous flux, the general luminous efficacy i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J61/30H01J61/36
CPCH01J61/30H01J61/361H01J61/366
Inventor 陈晖樊开强杜志挺
Owner NINGBO YAMAO OPTOELECTRONICS CO LTD
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