全彩LED显示屏用非对称节能型LAMP器件的设计

A new asymmetric LAMP design for Full Color LED Display

全彩LED显示屏通常是仰视的应用环境,上视角范围内的亮度没有被有效利用。本论文提出了一种将LAMP器件上视角范围内的亮度,向下视角范围转移的设计方法。通过设计得到透镜型面数据,制作透镜模具,封装成成品灯珠并进行测试,非对称LAMP器件上视角20°,下视角40°。下视角增大后,在同等条件下,非对称器件与常规器件相比,下视角可视范围内亮度提升了30%。同时,配光的一致性也获得了明显提升,降低了色偏差。由于上视角减小,也减少了上视角范围内的亮度造成的光污染。

The LED Display is usually used in the situation of head-up watching. The luminous intensity distribution in the upward 50% power angle is wasted. This paper presents a new asymmetric LAMP design concept that part of the luminous intensity in the upward 50% power angle can be transformed to the downward. After implementing the new design, the upward 50% power angle is reduced to 20° and the downward 50% power angle is increased to 40° . The luminous intensity of asymmetric LAMP in the downward 50% power angle increase 30% than the common LAMP. At the same time, the consistency of the light-matching also improved significantly, and the color bias of the display can be decreased.