1、电灯电灯(Electric lamp),准确技术名称为白炽灯(Incandescent light bulb)。人工光源之一般通称.它是电流把灯丝加热到白炽状态而用来发光的灯。电灯泡外壳用玻璃制成,把灯丝保持在真空,或低压的惰性气体之下,作用是防止灯丝在高温之下氧化。它只有78的电能变成可见光,90以上的电能转化成了热,白炽灯的发光效率很低...
•In1841,Moleyns(莫林斯·wasgrantedthefirst英)patent（专利）foranincandescentlamp,withadesignusingplatinumwires（铂丝）containedwithinavacuumbulb(真空灯泡).•In1845,JohnStarr(约翰·斯塔尔-美)acquiredapatentforhisincandescentlightbulbinvolvingtheuseofcarbonfilaments.But,hediedshortlyafterobtainingthepatent,and...
•In1841,Moleyns(莫林斯·wasgrantedthefirst英)patent（专利）foranincandescentlamp,withadesignusingplatinumwires（铂丝）containedwithinavacuumbulb(真空灯泡).•In1845,JohnStarr(约翰·斯塔尔-美)acquiredapatentforhisincandescentlightbulbinvolvingtheuseofcarbonfilaments.But,hediedshortlyafterobtainingthepatent,and...
灯泡图标创意(light-bulb-bulb-icon-idea) 装饰圣诞花卉与灯泡图标 复古花纹元素与灯泡图标 圆形灯泡图标 蓝色商务图表 蓝色商务图表矢量素材 AI 白炽灯灯泡(incandescent-lamp-light-bulb) 炫彩光晕创意灯泡矢量素材 灯泡爱迪生白炽灯(bulb-edison-incandescent-lamp) ...
The present invention is to provide a correct positioning of the filament in the center axis of the airtight container so that the infrared rays reflected infrared reflecting film back to the real filament incandescent light bulb and a lighting device using this lamp. 白炽灯泡有一具有中心轴,一端...
a55 e27 incandescent bulb 75w 230V clear light bulbs, You can get more details about a55 e27 incandescent bulb 75w 230V clear light bulbs from mobile site on Alibaba.com
incandescent lamp in·can·des·cent lamp (ĭn′kən-dĕs′ənt) A lamp that produces light by heating up a filament of wire inside a bulb with an electric current. Because the filament, usually made of tungsten, would burn from the heat, the bulb is filled with a nonreactive ga...
An Amazon customer praised the bulb for its excellent value and reliability: "These bulbs do everything promised and are very reliable. I've used them for a few weeks and I'm ordering another four pack to use in a second floor lamp in my living room." Wyze Bulb Color smart bulb, $...
ST64 40W E27 Vintage incandescent Edison squirrel cage light bulb lamp for decoration $0.68 - $0.80 Min. order: 2 pieces T22 E14 15W 240V incandescent decorative filament oven candle lamp bulbs $0.05 - $0.12 Min. order: 1000 pieces A55 220V 60W E27 Clear vintage edison filament incandescent ...
They are, well, light years away from the simple incandescent bulbs the Philips brothers made when they started the business back in1891. 他们已远不再像飞利浦兄弟1891年始做生意一样,只销售简单的白炽灯泡了。 electric lamp (bulb), filament for lighting ...