Seoul Semiconductor LED light source used for cul

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led lights facing the main technical problems: the output power and luminous flux, the second optical design, thermal design and power system design. increased output power and luminous flux white led also need the extension from the high-power technology, chip technology and other infrastructure level to further improve. in the second optical design, led lambertian radiation in the form of type, side emitting, bat wing, and several concentrator. in the field of road lighting, according to lambert-type design experience and more applicable bat wing, through the second optical design, the led light range, light curves meet the needs of road lighting. led lights need to focus on cooling is one of the issues addressed, as for high brightness led lamps, heat, and the relatively harsh outdoor environments such use, if not directly lead to heat led rapid aging, reduce the stability, in addition to the power good heat-type led itself, but the street has the characteristics of outdoor use at night, in the side of the radiating surface is conducive to the air above the natural convection cooling.led message board
the future, this technology makes cars and trucks between the front and rear lights can also be used to communicate. but the only voice communications, would like to have with the internet street. "led optical wireless networks," 2050 report on the feasibility of optical wireless networks is very commercial value, easy to use, but realize it is also difficult, because it chose a complex atmosphere to the channel --- transmission of data. the sky is full of unexpected storms will bring a lot of wireless optical communication variables, but certainly no problem with the interior. a series of optical wireless communication features: transmission speed, lower cost than optical shop, building speed, no radio frequency license, nor to the municipal pipeline excavation permit, portable and strong, easy to maintain, on the surrounding environment is not impact. led writing board
design complexity. lack of technology: the flux under the current technology is not enough, the luminous efficiency is too low, quality is difficult to guarantee. solutions: led lights require specialized products used in the design, but also requires special criteria (the traditional source of test data to evaluate the led light source is often not objective.) led lights are used have inherent advantages and disadvantages. advantages: first, led as light source, if properly designed, can solve a large extent must rely on the traditional ball of light emission source to solve the second problem of light extraction and optical loss.led display board