1、光强 light intensity; intensity of light常用词组光强标准 standard of luminous intensity;光强波动 light-intensity variation;光强测定仪 actinograph; actinoscope;光强测量 luminous intensity measurement;光强（度）分配 distribution of luminous intensity;光强级 light level;光强空间分布 spatial light intensity distribution;光强灵敏度 luminous intens
2、ity sensitivity;光强调节 regulation of luminous intensity;光强调节器 电工 dimmerdivide byMultiply by 乘以divide by 除以，Divided by 除以，DivisionRound by 循环照度 illuminanceIllinois Institute of Technology 伊利诺斯理工学院illuminance 照度illuminant 照明剂illumination 照度illuminating system,照明系统illumination,照度Illuminance, E光强度单位：坎德拉 c
3、andela, cd照度 Illuminance, E照度单位：勒克斯 Lux, lxintensity of illuminationintensity 强度intensity of illumination 照度interaction force 相互酌力亮度luminance .lju:minns brightness亮度计 摄 luminance meter; brightness meter; stilb-meter;LEDLED =Large Electronic Display 大型电子显示器;Light Emitting Diode 发光二极管 abbreviation bri
4、:viein n. 缩写; 缩写词荧光灯 fluorescent light fluorescence 白炽灯incandescent lampincandescent bulb 白炽灯泡incandescent lamp 白炽灯incandescent 炽热的incandescent D.J.,nkndesnt adj. 白热的;白炽的 adj. 1 2 十分明亮的,耀眼的 3 感情强烈的;激情的1 LED 特性(1) Luminous Flux 30-60lm(1-2W) 光通量(2) Light Effect 30-40lm/W 光效(3) Energy-converted effect
5、 能量转换效率 15-20(4) Colour Temperature 色温 4600-15000K(5) Ra 显色性 72(6) Life 寿命 several ten hours or 20hours(7) Heat heat quantity loss/heat loss 80-90%(8) Response time less than 100 ms(9) Orientated characteristic :lens(10)Relationship between current and light effect(11)Relationship between temperatur
6、e and light effect(12)Conventional light and traditional light lamp house 光源Spectrum characteristic.spektrm 光谱特性 470nm-575nm nanometer D.J.nn,mi:tK.K.nn,mit 纳米Convenc2 LEDs strength(1) high reliability, high light effect , low heat, short response time, resistant to collision collide, small volume,
7、non-polluted pollutant pollution3 LEDs weeknessLow luminous flux poor Ra and colour temperature (higher than incandescent lamp, similar to fluorescent lamp and HID) 4 LEDs optical characteristic(1) Characteristic of current and light outputWhen current is less than rated value: current is proportion
8、able with light outputWhen current is larger than rated value: LED will be overheated and current isnt proportionable with light output(2) Characteristic of temperature and light outputBetween minus 20 and plus 80 centigrade degree: light output is hardly subjected to temp., but traditional fluoresc
9、ent light ,its output will descend to the 40 percent of normal temp. value when under the circumstance of minus 10 centigrade degree5 Electrical characteristic(1) polarAnode cathode: alternating current cannot link to LED directly, but if necessary, can do that through linking in inverted diode (2)Voltage and current : join resistance of current limited in the circuit to prevent the LED from overcurrent if parallel connection, the voltage-current shoud be similar 串联 in series, series-wound
