Lighting Fair 2009: Japan Stanley exhibited large back LED lighting light guide plate

In March 2009 3 ~ 6, Tokyo lighting technology and lighting equipment exhibition "Lighting Fair 2009", Stanley exhibited the Japan length is 1.2m, the power consumption of LED lighting 40W.

It is understood that the LED lighting is the 20W of the LED installed in the company's sales of the existing backlight light guide plate products at both ends. The length of the light guide plate is 1.2m, Stanley is the longest light guide plate so far. The company pointed out that the light below the 2m brightness of 380 lx. The luminous efficiency of LED is 70lm/W. Because the luminous efficiency of the illuminating apparatus is very high, and there is no instrument to measure, the utility model has not been determined.

The use of the existing light guide plate products, there are still some problems. Stanley said, the left and right sides of the light emitted by the LED convergence in the middle, the phenomenon of uneven brightness. To solve this problem, it is necessary to adjust the configuration and density of light diffuse reflection in the light guide plate. And that, "plans to use special lighting light guide new development pattern optimization in the next products".