Although high-powered white-ray LED technology has made great breakthroughs in luminous efficiency, CRI and power consumption of single chip, and local LED manufacturers continued to improve their technologies and promote new products, white-ray LED technology still have a long way need to go before providing comfortable lighting environments practically. In order to improve the quality and also quantity of white-ray LED products in the indoor lighting area, the following points should be noticed by both producers and users.
In the view of the visual function, it is difficult for current LED products to meet basic needs for general lighting, both in luminous flux and lighting effect. Thus, reasonable lighting designs will be a key point to the indoor lighting. For example, using LED in local lighting and accent lighting, like spotlights; using LED as assisted lighting applications or in dimming designs, since they can be easily controlled. Some LED manufacturers even created intelligently controlled LED lighting system.
There is no doubt that the upstream business and midstream business are significant and crucial to the development of LED technology. But the downstream applications also played a lead role to the midstream business. Relations between scientists, engineers and designers should be strengthened, giving the LED industry a more reasonable and humanizing development.
LED secondary emitting is a key technology to LED lighting applications. Normally, lighting distribution can be optimized though LED secondary emitting designs. In this way, LED can emit much more reasonable light and meanwhile avoid glare.
Presently, testing departments in China have embarked on developing more effective test methods for LED lighting applications, including the development of relevant testing equipments. Standardization Technical Committee of National Lighting Appliance has already put the standardization work of LED lighting applications into agenda, including the standardization of LED technologies and also testing methods. The government hoped to promote the development of LED lights technologies and their applications in the field of lighting through the formulation of relevant LED standards. For LED indoor lighting standards, exerts believed that it is optical characteristics that should be improved at first, like luminous flux, lighting distribution, brightness, spectrum distribution, chromaticity coordinates, CRI, light attenuation, etc. Besides, the characteristics of electrical accessories, mechanical properties, temperature characteristics and appliance safety features should not be ignored, either.