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2020-02-09-
2019-12-25-Chinese LED industry, "Great Leap Forward" caused by global overcapacity crisis
2016-04-23-LED lighting effect is disabled pricing strategy under incandescent Interpretation
2016-04-23-LED market started to accept the protection element will increase demand for the next few years
2016-04-22-LED lamps wholesale sales growth momentum is good analysis of market prospects
2016-04-06
Customer question and answer / 客户问答
q
What LED optical characteristics?a
1.LED light emitted is neither monochromatic nor broadband light, but the balance between the two.2.LED like light point source and non-point sources.3.LED color of the emitted light with spatial directions differ.4. LED constant current operation with junction temperature under the strong influence of the forward voltage VF.
q
LED light-emitting mechanism works and w...a
LEDs are made Ⅲ-Ⅳ compounds, such as GaAs (gallium arsenide), GaP (gallium phosphide), GaAsP (gallium arsenide phosphorus) and other semiconductor made of, its core is the PN junction. Therefore, it has a general PN junction iN the characteristic that the forward pass, reverse cut-off, breakdown characteristics. in addition, under certain conditions, it also has a light emitting characteristic. in the forward voltage, electrons injected from the n area P area, hole injection from the P region N
q
Why is the fourth generation light sourc...a
Electric light emitting mechanism according to the classification: the first generation of light source: the second generation of resistance such as incandescent light emitting source: arc and gas-emitting source, such as sodium Third Generation: fourth-generation light-emitting phosphors such as fluorescent light: a solid-state light-emitting chip such as LED.
q
LED is a what?a
English LED Light Emitting Diode, light-emitting diode, is a semiconductor light-emitting solid device, it is the use of solid semiconductor chip as luminescent materials, when both ends with a positive voltage, the semiconductor carrier recombination occurs and cause photon emission It produces light .LED can emit red, yellow, blue, green, blue, orange, purple, white light. the first commercial diode produced in 1960. its basic structure is an electroluminescent semiconductor materials, placed
