What is high pressure LED

Cautiously understand again once, originally it is just small power LED of a lot of 20 mAses to establish and becomes so-called high pressure LED.Establish a lot of small power LEDs be not what fresh matter, in fact use early and like this in a lot of lamps.Unique dissimilarity of is past lamp manufacturer all already seal to pack good of small power LED establish.For example figure 1 is Long Xing 's company in Shanghai to establish all of the 0.1 Ws small power LEDs that 80 surfaces sticks to pack used for a LED ball bubble light with the characteristic that gets the high electric voltage small electric current in.

Now then from LED production factory house provide 1 kind to establish like of small power LED, and calls it that it is "high pressure LED" just.It is just a kind in integration LED.In fact early there was LED of various integration in the past, with the LED string of different amount LED that merge, gets various different power and electric voltage.Could say to is the Pu Rui(Bridgelux) of the United States at the earliest stage the companies have already released this kind of integration LED.Is also merge for the string on the board to get a big power LED by a lot of small power LEDs.They call it is LED array, for example they releases in 2009 of LED of a 30 Ws the array BXRA-C2000 actually is 25 LEDs of 1 Ws are on the chip 5 combine 5 string but get, its size gives out light the diameter of noodles as 17.5 mms(figure 2) for the 25.3 xes 22.3 mms, just to the electric voltage 16.6 Vs, just to the electric current 1.75 As, the hot Zu is 0.5 ° Cs|W.

High pressure LED and this kind of main difference that integrates LED lie in high pressure LED is all establish, but integrate LED the string then merge.The characteristics that integrates LED is in a method that opens slot on adoption of big chip, incise it becomes a lot of small LEDs, the depth of groove invite in 4-8 μ ms, groove can not too the breadth in order to prevent let up to give out light area.After opening a groove, for spreading to establish to link leading of each LED line, also need to use to insulate a layer to fill up these grooves, again according to establishing or the request for merging but spread homologous aluminum line.