An ultra-high pressure mercury lamp electrode and an ultra-high pressure mercury lamp
An ultra-high voltage, electrode technology, applied in the direction of circuits, discharge lamps, electrical components, etc., can solve problems such as uneven distribution of light source brightness, uneven electrode temperature distribution, and unstable discharge, so as to reduce flickering problems, stabilize electrode status, Effect of improving thermal conductivity
Active Publication Date: 2019-01-25
SHANGHAI HAOYE OPTOELECTRONICS TECH
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Problems solved by technology
In the case where the electrode rod and coil radius are the same, the part of the motor coil that is not sufficiently melted will exist in the molten bead at the distal end of the electrode, see Figure 4 , when the distal end of the electrode wears away with the passage of lamp driving time, the unmelted electrode coil part inside the convex circle is gradually exposed, and the temperature distribution of the electrode in the molten convex circle is uneven, making the discharge environment in the process of driving the lamp Unstable discharge, uneven distribution of light source brightness, flickering
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[0029] The present invention will be described in detail below in terms of specific embodiments in conjunction with the accompanying drawings. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It is to be noted that other embodiments may be utilized or structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the invention.
[0030] The present invention aims at the problems in the prior art and fills the coil winding gap of the electrode with metal powder, these powders are heated and bonded with other surrounding powders or metal wires or electrode rods when the electrode is working, and the heat conduction between the coils is improved , Finally, the winding gap of the metal coil is filled, and the various parts of the electrode are firmly attached to each other, making the electrode part more s...
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Abstract
The invention provides an ultrahigh-voltage mercury lamp electrode and an ultrahigh-voltage mercury lamp. The ultrahigh-voltage mercury lamp electrode comprises an electrode rod and metal coils, the metal coils are wound around the far end of the electrode rod to form a winding, and winding gaps of the metal coils are filled with heat-conducting powder. By filling metal powder in the winding gaps, heat conductivity between each two adjacent coils can be improved substantially. The ultrahigh-voltage mercury lamp comprises a lamp bulb and a pair of electrodes oppositely arranged in the lamp bulb, and the far ends are close to each other. By adding the heat-conducting powder, the electrode is enabled to be stable in state, so that brightness and uniformity of the lamp bulb are improved, and the glittering problem is reduced.
Description
technical field [0001] The invention relates to an electrode of an ultra-high pressure mercury lamp and an ultra-high pressure mercury lamp. Background technique [0002] In recent years, a light source device in which an ultra-high pressure mercury lamp is combined with a reflector has been widely used as a light source for a projection device. The ultra-high pressure mercury lamp is installed at the focal point of the parabolic reflector or ellipsoid reflector of the light reflector to form an integral high-brightness light source. The light source can be used in projection technology fields such as multimedia projectors, liquid crystal rear projection display systems, projectors of DLP digital light output systems, and the like. [0003] The projection light source needs to be close to the point light source in order to ensure that the projection device provides sufficient brightness on the screen. Projection devices therefore mainly use short-arc discharges. However, ...
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IPC IPC(8): H01J61/073
CPCH01J61/0732H01J61/0735
Inventor 吴喜荣吴桐
Owner SHANGHAI HAOYE OPTOELECTRONICS TECH