The National Institute of weights and measures tells you what is light pollution

Have you ever felt that the outdoor dynamic advertising LED (diode, light emitting) billboard is very novel and attractive, but also for its dazzling light can not help but blink?

The national measurement standards of weights and laboratory director Duan Jiarui said that in the standard Inspection Bureau under the support of the national measurement laboratory positive development of LED measurement technology, test method development of 2D brightness measurement, the use of digital camera (array type brightness measuring device) LED brightness distribution measurement, to replace the traditional single point type colorimeter, can greatly improve the measurement efficiency, also in line with the manufacturers to quickly verify the effective demand, to measure the extent of pollution source.

With the LED gradually become the new darling of lighting products, and gradually replace the traditional light emitting light source of low efficiency, although bring more and more high brightness, but also because of excessive use and abuse, resulting in light pollution. Light pollution, also known as light damage. According to the national standard CNS 15015 outdoor landscape lighting standard, defined as "light pollution or excessive interference of light radiation (including visible light, ultraviolet and infrared radiation) caused by general negative impact on the human environment and human survival and health". Light interference light pollution mainly from buildings, roads, landscape lighting, advertising signs and the negative impact on people and the environment, such as light or flicker caused by passers-by eye discomfort, or light into the room, causing people to feel annoyance, heart and other adverse effects.

Duan Jiarui stressed that the light pollution prevention, the laboratory has built a static light source brightness, vertical illuminance control parameters, as well as related measurement techniques. For example, the two-dimensional brightness measurement method for dynamic light, glare and flicker LED were measured by LED method, the amount of more perfect measurement methods and standards, accelerate the penetration of LED and the maintenance of the environment, let Taiwan in support of the international scientific and technological strength of light "," world metrology day international activities to promote the continued development of global mission to contribute. At the same time, the government can provide planning related measures, including perfecting the measurement standard, establish or assist to establish qualified inspection units, inspection personnel training, and the government is expected at the end of this year is expected to soon put forward "light pollution pollution prevention law" draft.

Duan Jiarui pointed out that the "light" technology is 2015 the most great technology, UNESCO advocate and by 2015 the "International Year of 2015, world metrology Day theme has been set as the" measurement and light ", on the eve of world metrology day in May 20th this year, the world's highest metrology organizations - the International Bureau of weights and measures (BIPM) director Martin Milton, was invited to Taiwan for public speaking, city - Global LED production in Taiwan, discusses the importance of light on human beings, to evoke more attention and promote the sustainable development of optical technology, and make a significant contribution to the global energy, agriculture, education, communication and health.

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