Color-temperature adjustable LED lighting device and method, for adjusting the colour temperature of LED lighting deviceThe present invention provides a kind of LED light of adjustable color temperature and the color temperature adjusting method of LED light, by the electric current for detecting cool...
白光LED与荧光粉之特性探讨 照明(Lighting)与显示(Display)是现今光电产业中两项极为重要的发展领域,而全球的化石能源日益枯竭,环境污染也日趋严重,能同时符合“节能”与“环保”双重特性的白光LED(Light emittingdiode),其在照明与显示装置的应用潜力,近年来的确受到高度的瞩目及重视。 白光LED因具有节能与环保的双重...
LED术语色温(color【LED术语】色温(colortemperature)指用黑体(理论上可完全吸收外来光的虚拟物体)的温度表示光的颜色的数值。单位为K(开尔文)。黑体发出光的波长分布(色调)因温度而异。色温常用于表示荧光灯和白色LED的光色,及显示器可显示的白色的程度。一般来说,色温胸阔聂涩承肘瓷善付惜逞迟次妆项哼朗咏鸦疯...
Lighting Angle 130*65 Charging Temperature -20 to 60 Discharge Temperature -20 to 60 Storage Temperature 0 to 45 Solar Panel Monocrystalline Battery Type LiFePO4 Battery Working Time 12h Per Night Rainy Day 3-5days Color Light Gray Mounting Type Pole Mounting Tim...
为了更得心应手地使用LED灯具进行拍摄,了解LED的光谱( color spectrum) ,色域 (color gamut),普朗克黑体曲线( Planckian black-body curve)和及其相关的色温(color tempertaure) 对理解LED的基本概念十分重要。 什么是色温?(Color temperature) 我们先从“色温”真正的定义说起。 自然的白织(incandescent)*光源——...
Longman Lighting根据内部制定的测量标准SDC, 以圆形LED灯具为例,在距离灯具中心1-2米处放置一个大尺寸黑屏,灯光垂直投影在黑屏上产生圆弧形光斑。以光斑中心为最大光强点,从中心向外缘光强从100%-0%递减,在圆周内5%照度梯度范围内按照不同照度梯度和每个象限上均匀取8个点,并分别用CL-200A测每个点的色度值,然后...
ColortemperatureBase:色温基准 工作环境温度:Workingtemperature 工作电压:Supplyvoltage 额定电源频率Ratedpowerfrequency 额定功率Ratedpower驱动电源效率Powersupplyefficiency 功率因数Power-factor(PF) LED发光效率LEDluminoueefficiency 灯具初始光通量Luminousflux 灯具出光效率LampFlux 色温Colortemperature 显色指数CRI:Ra 防护...
LED manufacturers specify a certain drive current in the electrical characteristics tables of their products, and they guarantee the dominant wavelength or CCT only at those specified currents. Dimming with PWM ensures that the LEDs emit the color that the lighting designer needs, regardless of the ...
LED Lighting固态照明基础知识-光和色-英文版 LED lighting Alan Yu Alan Yu AE ayu@intersil.com Shenzhen, PR of China April 4, 2007
100W Color Temperature 10000K 12000K 20000K IP65 SMD LED Flood Aquarium Light, Find Details and Price about 100W LED Light LED Aquarium Light from 100W Color Temperature 10000K 12000K 20000K IP65 SMD LED Flood Aquarium Light - Shenzhen Qinhan Lighting Co