本文目录一览:
- 1、什么是荧光灯?
- 2、荧光灯 是什么?
- 3、荧光灯又称为什么?
- 4、关于荧光灯,你了解多少?
- 5、荧光灯是什么灯啊!节能灯和电棒灯属于荧光灯吗?
什么是荧光灯?
首次出现荧光灯是在1939年,灯管内壁涂有荧光粉,一般制成长长的管状或环状。有时为缩小体积,灯管曲曲折折盘成好几道弯,目的是尽量增大灯管的内壁面积。通电后灯管中的汞蒸气会产生紫外线,荧光粉吸收紫外线后便发出强烈的荧光。随着荧光粉成分的不同,发出的荧光颜色也不同。荧光灯的发光效率和寿命远比白炽灯高,一支40 W的荧光灯管所发的光相当于150 W的白炽灯,寿命可以达到5 000小时,效率可以达到80%以上。
荧光灯 是什么?
荧光灯(Fluorescent lamp),也称为日光灯。
传统型荧光灯即低压汞灯,是利用低气压的汞蒸气在通电后释放紫外线,从而使荧光粉发出可见光的原理发光,因此它属于低气压弧光放电光源。
1974年,荷兰飞利浦首先研制成功了将能够发出人眼敏感的红、绿、蓝三色光的荧光粉。三基色(又称三原色)荧光粉的开发与应用是荧光灯发展史上的一个重要里程碑。
荧光灯又称为什么?
又称为日光灯,日光灯两端各有一灯丝,灯管内充有微量的氩和稀薄的汞蒸气,灯管内壁上涂有荧光粉,两个灯丝之间的气体导电时发出紫外线,使荧光粉发出柔和的可见光。
关于荧光灯,你了解多少?
日光灯又名荧光灯,所以日光灯就是荧光灯。日光灯俗称“电棒”,就是细长圆柱形的白色不透明玻璃管,(灯管内的白色物质就是引起发光的荧光粉,所以也叫荧光灯),两端还各有两个细腿的那种,因为照出的光线和太阳照的一样不会引起物体变色,所以叫日光灯。用途非常广泛。在造型上也有柱型、环型、U型等多种。其更大特点是光亮、节电、散射、无影,是典型的重在照明的灯具,装饰效果较差。所以在选购时应更注重其照明效果。 还有就是荧光灯节能灯,与日光灯的发光原理和效果一样,发光的灯管一般是“U”形或螺旋形的白色不透明玻璃。因它把电子镇流器什么的都做在灯头里了,所以不象日光灯安装那么麻烦,可以直接替代普通电灯泡(白炽灯),虽然价格高一点,但是光线效果很好,还节能,一个16瓦的节能灯亮度相当于一只60瓦的灯泡。
荧光灯是什么灯啊!节能灯和电棒灯属于荧光灯吗?
荧光灯是个不规范的俗称,我们的日常生活中很少用到荧光的。生活中的灯光,一般属于日光灯,节能灯和老式的“电棒”多属于日光灯。
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