Development of Color-Controlled Discharge Lamps by utilizing afterglow of phosphors

利用荧光粉余辉开发颜色控制放电灯

• 批准号: 10555095
• 负责人: RYOKO Masatoshi
• 金额: $ 2.69万
• 依托单位: Akashi National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10555095/
• 关键词: variable color; neon-mercury; xenon-mercury; negative glow; positive-column; pulsed discharge; external electrodes; time sharing; dielectric barrier discharge; phosphor; afterglow; 発光色制御; 残光時間; パルス放電; デューティ比; 励起レベル; 可変色放電; 周波数

In this research, we investigated about the effect of afterglow in color control of fluorescent lamps. And we developed variable color fluorescent lamps with internal electrodes. We also developed variable color lamps with external electrodes, by using negative glow discharge (dielectric barrier discharge) which was based on the principle of color controlled discharge.(1) Effect of afterglow characteristics in color control of fluorescent lamps We thought that the ratio of the light emission would change according to frequency and pulse duration of the discharge, if the risetime and the lifetime of afterglow of ***nds of phosphors were different. Therefore, we simulated the effect of afterglow. In this simulation, it was possible to change the luminous color. But in the basic experiment, the sufficient color change was not obtained only by the phosphor.(2) Neon-mercury mixed gas fluorescent discharge lamp with internal electrodes In a lamp with internal electrodes and Ne 2.65kPa + Hg filled (phosphor : NICHIA NP105 : NP320 = 10:20), color control was possible within (0.425, 0.256) and 522cd/mィイD12ィエD1 - (0.337, 0.207) and 526cd/mィイD12ィエD1 in CIE-xy chromaticity and luminance.(3) Xenon-mercury mixed gas fluorescent discharge lamp with internal and external electrodes In the lamp with internal and external electrodes and Xe 2.67 kPa + Hg filled (NP99 : NP360 = 10:10), it was possible to change the luminous color from (0.540, 0.339) and 350cd/mィイD12ィエD1 to (0.309, 0.299) and 600cd/mィイD12ィエD1, by using time shared negative glow (dielectric barrier) discharge.(4) Full bridge lighting circuit We produced and used the full bridge switching circuit. In Xe-Hg lamp, we developed time shared full bridge circuit for axial (internal electrodes) and radial (external electrodes) discharge.

在这项研究中，我们研究了余辉对荧光灯颜色控制的影响。我们还开发了带有内部电极的可变颜色荧光灯。我们还开发了带有外部电极的可变颜色灯，利用基于颜色控制放电原理的负辉光放电（介质阻挡放电）。 （1）余辉特性对荧光灯颜色控制的影响我们认为，如果多种荧光粉的余辉上升时间和余辉寿命不同，发光的比例会根据放电的频率和脉冲持续时间而变化。因此，我们模拟了余辉的效果。在这个模拟中，可以改变发光颜色。但在基本实验中，仅靠荧光体并不能获得足够的颜色变化。 (2) 带内部电极的氖汞混合气体荧光放电灯 在具有内部电极且填充 Ne 2.65kPa + Hg 的灯中（荧光体：NICHIA NP105：NP320 = 10：20），可以将颜色控制在（0.425，0.256）和522cd/mィイD12ィエD1 - CIE-xy 色度和亮度为 (0.337, 0.207) 和 526cd/miiD12ィエD1。 (3) 具有内部和外部电极的氙-汞混合气体荧光放电灯 在具有内部和外部电极且填充 Xe 2.67 kPa + Hg 的灯中 (NP99 : NP360 = 10:10)，可以改变发光颜色 （0.540，0.339）和350cd/miiD12ィエD1到（0.309，0.299）和600cd/miiD12ィエD1，通过使用分时负辉光（介质屏障）放电。（4）全桥照明电路我们制作并使用了全桥开关电路。在氙汞灯中，我们开发了用于轴向（内部电极）和径向（外部电极）放电的分时全桥电路。

项目成果

藤野達士: "内部電極と外部電極を併用した可変色光源に関する研究"電気学会放電研究会資料. ED-99-193. 25-30 (1999)

Tatsushi Fujino：“使用内部和外部电极的可变颜色光源的研究”IEEJ Discharge Study Group Materials ED-99-193 (1999)。

Tatsushi Fujino, Masatoshi Ryoko: "Variable color discharge lamps with internal and external electrodes"Papers of Technical Meeting on Electrical Discharges, The Institute of Electrical Engineers of Japan. ED-99-193. 25-30 (1999)

Tatsushi Fujino、Masatoshi Ryoko：“具有内部和外部电极的可变颜色放电灯”日本电气工程师协会放电技术会议论文。