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Lamp housing of ceramic metal halide lamp and preparation method thereof

A technology for ceramic metal halide lamps and lamp housings, which can be used in the manufacture of gas discharge lamp parts, ships or lead-in wires, lighting and heating equipment, etc. It can solve the problems of low ultraviolet transmittance, underutilization, and radiation loss To achieve the effect of improving lumen efficiency, maintaining temperature and reducing energy loss

Inactive Publication Date: 2013-02-27
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the high-temperature, plasma-state material in the bulb works, it emits strong visible light and ultraviolet light radiation. The lamp housing is made of glass material with high transmittance to the visible spectrum but extremely low transmittance to ultraviolet light, so that Ultraviolet rays cannot penetrate the lamp housing to protect the health of users
[0004] The existing ceramic metal halide lamp structure, although a vacuum state is formed between the bulb and the lamp shell, which reduces the heat loss of the bulb, and the lamp shell also has a strong absorption capacity for ultraviolet rays, but because the ceramic metal halide lamp is a kind of heat The light source, while emitting visible light, also emits a large amount of infrared rays, and a considerable part of the energy is lost in the form of infrared rays through the glass lamp housing transparent to infrared rays; in addition, the short-wavelength part of the light emitted by the bulb, Not fully utilized, part of it is absorbed by the glass lamp housing to prevent harm to human health, and the other part is lost by radiation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment presents the realization of the lamp housing structure proposed by the present invention as a single layer of glass.

[0037] The process of this embodiment is composed of: glass shell cleaning→transparent conductive film coating→phosphor powder layer coating→drying and other process steps.

[0038] The glass shell (the appropriate size can be selected according to the size of the lamp) is ultrasonically cleaned in 10wt% NaOH aqueous solution at 40C for 10 minutes, then ultrasonically rinsed with demineralized water for 3 times, each time for 5 minutes, and dried with high-pressure air after washing.

[0039] The glass shell after cleaning is placed in the coating equipment, heated to 600C in the air, and then nitrogen is used as the carrier gas to pass monobutyltin trichloride (MBTC) and trifluoroacetic acid (TFA) into the glass shell. Mixed gas, the ratio of tin and fluorine atoms in the mixed gas is 2.5:1. After the reaction gas contacts the hot glass...

Embodiment 2

[0042] This embodiment describes the implementation of the lamp housing structure proposed by the present invention as two layers of glass.

[0043] The process of this embodiment consists of: cleaning the inner and outer glass shells → coating the inner glass shell with a transparent conductive film → coating the phosphor layer inside the outer glass shell → drying → assembling the inner and outer glass shells.

[0044] The inner and outer glass shells (the appropriate size can be selected according to the size of the lamp) are placed in 40C, 10wt% NaOH aqueous solution and ultrasonically cleaned for 10 minutes, and then ultrasonically rinsed with demineralized water for 3 times, each time for 5 minutes. After washing, use high-pressure air blow dry.

[0045] The inner glass shell after cleaning is placed in the coating equipment, heated to 600C under the atmosphere, and then nitrogen is used as the carrier gas to pass monobutyltin trichloride (MBTC) and trifluoroacetic acid ...

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Abstract

The invention relates to a high-intensity gas discharge lamp, and particularly a lamp housing of a ceramic metal halide lamp and a preparation method thereof. The lamp housing comprises a lamp housing body composed of a layer of glass. The lamp housing is characterized in that the inner side of the lamp housing body is coated with a transparent conductive film with functions of visible light anti-reflection and infrared reflection, and the external side of the lamp housing body is coated with a fluorescent powder layer capable of converting short wavelength light into long wavelength light. The invention provides a structure of a ceramic metal halide lamp housing coated with the transparent conductive film and fluorescent powder; the transparent conductive film has characteristics of high transmittance on short wavelength and visible spectrum, and low transmittance and high reflectivity on middle to far infrared light, so as to reflect infrared spectrum in the light emitting from bulb into the lamp during working of the ceramic metal halide lamp, reduce the loss of heat from the bulb in infrared radiation way, and improve the effect of light.

Description

technical field [0001] The invention relates to a high-intensity gas discharge lamp, in particular to a lamp shell of a ceramic metal halide lamp and a preparation method thereof. Background technique [0002] The ceramic metal halide lamp is a high-intensity gas discharge lamp invented by Philips in the 1990s. The luminous efficiency of the ceramic metal halide lamp is generally 90-1201m / w, and the color rendering Ra value is generally between 85-95. The service life is generally more than 12000 hours. It has high luminous efficiency, good color rendering, and long service life. Its spectrum is in good agreement with the sensitive spectrum range of human dark vision. When night lighting is used, it has the same luminous flux as the most widely used street light source, such as high-pressure sodium lamps. The color seen by the human eye is more realistic, the feeling is brighter, and the visibility is better. When used in night lighting applications such as street lights, i...

Claims

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Application Information

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IPC IPC(8): C03C17/34H01J61/42H01J9/24
Inventor 唐李晟
Owner IRICO