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Fluorescent-powder composition for exciting light-catalyst function and its use

A catalyst and phosphor technology, applied in luminescent materials, parts of gas discharge lamps, chemical instruments and methods, etc., can solve problems such as difficult color rendering, achieve high-quality indoor lighting, and inhibit bacterial growth.

Inactive Publication Date: 2007-11-21
浙江晨辉光宝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the color rendering index Ra of most indoor lighting tubes ranges from about 48 to 80, and it is difficult to present the color of the illuminated object itself.

Method used

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  • Fluorescent-powder composition for exciting light-catalyst function and its use
  • Fluorescent-powder composition for exciting light-catalyst function and its use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Referring to Fig. 1 and Fig. 2, the lighting discharge lamp of the present invention comprises a glass tube 1 and a titanium dioxide coating film 2. In Fig. 2, the outer wall of the glass tube 1 is covered with a light-transmitting titanium dioxide coating film 2, and the inner wall of the glass tube 1 is coated with Near ultraviolet and visible light emitter layer 3 . The near-ultraviolet and visible ray emitter layer 3 is the phosphor composition coating of the present invention, and the titanium dioxide coating film 2 and the near-ultraviolet and visible ray emitter layer 3 are all coated by common techniques in the field.

[0027] The weight percent of the fluorescent powder composition adopted in the near-ultraviolet and visible light luminous body layer 3 of the inner wall of the glass tube 1 is composed of:

[0028] SrB 4 o 7 : Eu 7%

[0029] Y 2 o 3 : Eu 54%

[0030] CeMgAl 11 o 19 : Tb 31%

[0031] BaMgAl 10 o 17 : (Eu.Mn) 8%

[0032] After testing,...

Embodiment 2

[0034] Prepare a lighting discharge lamp according to the description of Example 1, wherein the percentage by weight of the fluorescent powder composition adopted in the near-ultraviolet and visible light luminous body layer 3 of the inner wall of the glass tube 1 consists of:

[0035] SrB 4 o 7 : Eu 5%

[0036] Y 2 o 3 : Eu 52%

[0037] CeMgAl 11 o 19 : Tb 33%

[0038] BaMgAl 10 o 17 : (Eu.Mn) 10%

[0039] After testing, the color rendering index of the lighting discharge lamp of this embodiment is Ra=86.

Embodiment 3

[0041] Prepare a lighting discharge lamp according to the description of Example 1, wherein the percentage by weight of the fluorescent powder composition adopted in the near-ultraviolet and visible light luminous body layer 3 of the inner wall of the glass tube 1 consists of:

[0042] SrB 4 o 7 : Eu 6%

[0043] Y 2 o 3 : Eu 51%

[0044] CeMgAl 11 o 19 : Tb 33%

[0045] BaMgAl 10 o 17 : (Eu.Mn) 10%

[0046] After testing, the color rendering index of the lighting discharge lamp of this embodiment is Ra=85.

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Abstract

A fluorescent powder composite for exciting light catalyst and luminescent discharging light from it are disclosed. The composite consists of SrB407: Eu 4-7 wt%, Y203: Eu 51-54 wt%, CeMgAl11019: Tb 31-34 wt% and BaMgAl10017: (Eu.Mn) 7-10 wt%. The light can produce near-ultraviolet ray 368 nm and visible light 380-780 nm in light-catalyst effective zone. It has high-quality indoor illumination.

Description

technical field [0001] The invention relates to a phosphor composition, in particular to a phosphor composition capable of stimulating photocatalyst action and its application. Background technique [0002] According to the principle of photocatalyst technology application, the photocatalyst reaction is mainly that after the catalyst is irradiated by ultraviolet rays, hydroxyl groups and oxygen ions are generated, and bacteria, molds, and organic compounds are oxidatively decomposed and redox reacted through hydroxyl groups and oxygen ions, and the reaction products for water and carbon dioxide. The application of this technology has obvious effects on sterilization, inhibition of bacterial growth, and adjustment of indoor air quality. [0003] At present, the most widely used ultraviolet light source is used to stimulate the photocatalyst action. As an independent excitation light source, the whole function is to stimulate the photocatalyst reaction. For indoor use, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/80H01J61/44
Inventor 赵国松
Owner 浙江晨辉光宝科技有限公司