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FF200-0PB-006B 参数 Datasheet PDF下载

FF200-0PB-006B图片预览
型号: FF200-0PB-006B
PDF下载: 下载PDF文件 查看货源
内容描述: 基于小型LED灯 [Miniature Based LED Lamps]
分类和应用:
文件页数/大小: 28 页 / 2975 K
品牌: LEDTRONICS [ LEDTRONICS, INC ]
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Once limited to simple status indicators, Light Emitting Diodes (LEDs) now play prominent  
roles in back lighting, panel indication, decorative illumination, emergency lighting, animated  
signage, etc.... The emergence of LEDs as a viable alternative to incandescent lighting can be  
attributed to new manufacturing technologies, packaging innovations and an increasing  
number of colors. These factors along with the growing awareness of the advantages of LEDs  
(e.g., a life span measured in years not hours, vivid sunlight-visible colors and low power  
requirements) have engineers, product designers, purchasing agents and component vendors  
viewing LEDs in a whole new light.  
For many applications LED lamps are superior to incandescent lighting. So why is it that in  
tens of millions of switches, indicators, control panels, signs, annunciators, displays, decor  
lights and dozens of other applications, design engineers still specify incandescent  
technology? It might be that they’re just a few years behind what’s really happening in LED  
illumination.  
Although advances made in LED technology in the past few years have dramatically  
broadened the applications for these rugged little light sources, it wasn’t that long ago that red  
was the only “daylight-visible” colored LED. And that wasn’t the only thing limiting their use!  
Unlike incandescent bulbs that give off the full spectrum of light in a spherical pattern, LEDs  
emit a focused beam of a single wavelength (color) in only one direction, in a variety of angles.  
For many applications, such as indicators or switch illuminators, this is not a problem, but it  
took the development of multi-chip arrays and high-flux LED chips to begin to achieve the  
effect of an incandescent filament.  
Major advancements in LED technology have taken place in recent years such as  
development of new “doping” technologies that increase LED light output by as much as 20  
times over earlier generations, and allow the production of daylight-visible LEDs in virtually any  
color of the spectrum. In addition to red, yellow, and amber/orange, LEDs are now available in  
many colors from leaf green to ultra blue. Even white light, long thought to be an impossibility,  
is now available in three different shades as a light-emitting diode.  
The efficiency of LEDs is most apparent in applications requiring color. Light from a typical  
incandescent bulb must be filtered so that only light from a particular part of the spectrum  
(e.g., red, amber or green, etc...) for example—is visible. While LEDs deliver 100 percent of  
their energy as colored light, incandescent bulbs waste 90 percent or more of their energy in  
light blocked by the colored lens or filter. Incandescent bulbs also waste 80 percent to 90  
percent of their energy on heat generation to reach the temperature for which (Kelvin scale)  
they are designed.  
The point is that what was once a fairly marginal light source isn’t marginal any more. In many  
applications, LEDs exceed the energy available from incandescent bulbs and offer significant  
additional benefits making LED clusters and lamps as friendly to the environment as they are  
to the operating budget.