Xenon lamp coated with film

Abstract

The invention provides a xenon lamp coated with film and belongs to the technical field of light source parts. The xenon lamp coated with the film comprises a lamp base, a bulb holder fixed on the lamp base, a bulb inserted into the bulb holder and a lamp filament arranged in a bulb cavity of the bulb. The xenon lamp coated with the film is characterized in that the infrared light reflective film is arranged on the surface of the outer wall of the bulb in a combined mode. Due to the fact that the infrared light reflective film is arranged on the surface of the outer wall of the bulb in the combined model, the infrared light reflective film stops infrared light and prevents the infrared light from scattering towards the outer side of the bulb cavity, and light except the infrared light can scatter outwards. Therefore, the luminous flux, the color temperature and the lighting effect can be improved under the condition of the same power, and energy conservation is reflected. Due to the fact that the shape of the bulb is changed into an ellipsoid from a round sphere of the prior art, the xenon lamp coated with the film can withstand over 15MPa pressure generated when xenon in the bulb cavity expands. Therefore, the service life of the bulb can be remarkably prolonged.

Description

technical field [0001] The invention belongs to the technical field of light source components, and in particular relates to a film-coated xenon lamp, which is mainly used as a vehicle headlight. Background technique [0002] The xenon lamp mentioned above is filled with an inert chemical gas—xenon gas in an anti-ultraviolet crystal quartz glass tube. The white super-strong arc light produced by xenon gas can significantly increase the color temperature of the light, showing the sun's rays like daytime, and because the brightness generated by xenon lamps is more than three times that of traditional halogen lamps, and the service life is longer than traditional halogen bulbs More than ten times, so it is highly valued by people. [0003] In recent years, the application of xenon lamps in vehicles (cars) as a means of transportation has become popular because of its outstanding energy density and extreme light intensity, which is very conducive to expanding the visual (vision...

AI Technical Summary

Problems solved by technology

[0005] Not limited to the above-mentioned patented schemes, although each has its own unique achievements, objectively there are the following two disadvantages in terms of its use as a vehicle headlight: First, due to the relatively limited light effect and luminous flux For example, when the power is 75W, the luminous flux is 2000Lm, the color temperature is 3000K, and the luminous efficacy is 26.6m / w. Therefore, if you try to increase the luminous flux and luminous efficacy, the only way is to increase the power, but increasing the power will cause energy waste; other Second, because the shape of the bulb is generally spherical with equal diameter, the compressive strength is poor, and it can only withstand a pressure of about 7MPa. However, when the bulb is working (when it is turned on), the xenon gas filled in the bulb will expand The pressure generated is often difficult to bear by the bulb, which can easily lead to bursting and seriously affect the service life of the bulb

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