Ultrahigh mercury light and projection light with this light as wick

An ultra-high voltage, projection lamp technology, applied in the field of projection lamps, can solve the problems of brightness, emitted light color balance, service life cannot meet the projection light source, limit the improvement effect of halogen tungsten cycle, high temperature arc discharge is not stable enough, etc., to improve the output Quality and service life, improve service life, reduce the effect of electrode damage

Inactive Publication Date: 2008-04-09
李洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the air pressure of the lamp cavity, it is necessary to increase the working temperature during discharge accordingly, coupled with the influence of the reduction of the pole distance, these factors will intensify the loss of the electrode to a certain extent, limit the improvement effect of the halogen tungsten cycle, and due to the high temperature The arc discharge is not stable enough, so that the luminous effect is also affected
Therefore, this ultra-high pressure mercury lamp still cannot meet the growing requirements of projection light sources in terms of brightness, color balance of emitted light, and service life.

Method used

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  • Ultrahigh mercury light and projection light with this light as wick
  • Ultrahigh mercury light and projection light with this light as wick
  • Ultrahigh mercury light and projection light with this light as wick

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Embodiment Construction

[0024] The invention will now be described in detail with reference to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. In the described embodiments, the same parts are given the same names and symbols, and their repeated descriptions will be omitted.

[0025] see figure 1 , which is a schematic structural view of the ultra-high pressure mercury lamp according to the present invention. The ultra-high pressure mercury lamp 10 includes a lamp body 11 , two electrodes 12 , a molybdenum foil 13 respectively connected to the two electrodes, and a lamp cap 14 located at one end of the lamp body.

[0026] The lamp body 11 has an elongated structure, the middle of which forms a spherical part (ie, a discharge tube) 111 , and a lamp cavity (ie, a discharge cavity) 112 is formed in the spherical part 111 . The wall thickness of the spherical portion 111 is 2-5 mm, for example, 3 mm. The volume of the lamp cavity is 300~1000mm...

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Abstract

The invention includes a lamp body and electrodes. The lamp chamber is formed in the lamp body, and the electrodes extend into the interior of the lamp. The mercury and halide is filled into the lamp chamber. The invention features xenon-oxygen mixed gases filled into the lamp chamber. The electrodes above are equipped with round heads.

Description

technical field [0001] The invention relates to an ultra-high pressure mercury lamp, in particular to an ultra-high pressure mercury lamp mainly used as a projection light source. The invention also relates to a projection lamp using the ultra-high pressure mercury lamp as a wick. Background technique [0002] The ultra-high pressure mercury lamp belongs to the gas discharge lamp. It is an electric light source that uses ultra-high pressure mercury vapor discharge to emit light. Because of its short discharge arc and high brightness, it is widely used in optical imaging systems such as projectors as a projection light source (projection lamp wick). Generally speaking, the optical system of a projector requires that the projection light source be as close as possible to a point light source and have high brightness. In recent years, with the continuous development of projectors in the direction of miniaturization, high brightness, high image quality and long life, higher re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J61/12H01J61/073H01J61/30H01J61/82G03B21/20F21V7/00F21V29/00F21V29/70
Inventor 高文生李洋
Owner 李洋
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