ufo forum :: Topic review - LED industry with the introduction and application

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3. Close to the tunnel exit problem when watching the external brightness through the export of high export appears to be a bright hole, a serious glare, exports become a white cave,LED sign, which is called white hole phenomenon; the background of the white hole, and motor vehicles became a black silhouette is easy to identify, but in a large box truck with cars and trucks behind the silhouette of coincidence is hard to see, in heavy traffic near the tunnel exit, in order to identify overlap, the size of the vehicles to do exports of lighting as lighting, exit lighting of the interval length is tens of meters.
4. Night pulled out of the problems the night before the tunnel, the tunnel exit from the bright to the road without lighting before the tunnels became a black hole, could not see the road alignment and the presence of obstacles, then, should be In the newly hatched tunnel exit on the road, in the longer than the safe braking distance of approximately a few seconds of motor vehicle driving range, on the road for lighting, in order to achieve an appropriate level of brightness.
Third, the LED products in the tunnel of LED as a green energy, is expected to develop a new fourth-generation lighting source, his light close to natural color, no flicker, can be better to restore the real objects radiation color, more useful to the human eye to adapt. More importantly, it is more energy efficient than other light sources, in this era of energy are depleting, energy-saving means less than competitive.
Information, LED light sources 87% of electricity than incandescent, fluorescent energy saving than the 50%, while the life span of 20-30 times longer than incandescent, 10 times longer than fluorescent lamps. LED tunnel lighting applications in the country to start implementation of the road tunnel in Nanjing became the model for the first LED light tunnel.
It implements the LED lantern with the intensity of light entering the tunnel automatically adjust the lighting intensity of intelligent dimming control system. Compared to traditional programs,LED display board, to achieve 45% energy saving,LED writing board, and source life is 6-8 times of traditional tunnel lamps, greatly reducing light loss and maintenance costs. Summary High Power LED lamps in the tunnel lighting applications can save energy and save on maintenance costs with greater economic benefits,restaurant board, and can provide drivers with better visual environment, increase the driver's sense of security and comfort, increase the tunnel traffic flow and reduce accident rates.