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How big is blue light hazard? The name is LED!

Number of visits: Date:2016年10月7日 16:44

In our life, we often hear this argument, do not buy those cheap LED lights, Blu ray harm greatly, will lead to decreased vision, and even blindness!

 

Is the blue light of LED lamp particularly strong?

Pictured above is a blue light hazard efficiency of various light sources, visible in the same color, whether it is the thermal radiation source, fluorescent lamp, metal halide lamp or LED, they all have similar efficiency of blue light hazard, the color temperature is the main factor affecting the efficiency of light blue light hazard. This is because the color index is larger than 80, and the spectral composition of the light source is similar to that of the color coordinates near the black line.
 
 

 Pictured above is a blue light hazard efficiency of various light sources, visible in the same color, whether it is the thermal radiation source, fluorescent lamp, metal halide lamp or LED, they all have similar efficiency of blue light hazard, the color temperature is the main factor affecting the efficiency of light blue light hazard. This is because the color index is larger than 80, and the spectral composition of the light source is similar to that of the color coordinates near the black line.

Above is a PPT, 8.24, far from the Institute of optics, Optical Science Institute, Li Qian, in the bright classroom Sharon used a, through the measurement uncertainty (AMU) to assess the type of hazard. The percentage of the graph represents a hazard detected in under the national standard number, "100%+" said hazards detected far below the national standard, "*" said according to the CIES009 standard does not need to detect the parameters, and the "-" hazard exceed the standard.
From the figure, we can see LED in the light of the field of bio safety is quite good, compared to the fluorescent lamp, it has no UV damage, compared to the old tungsten lamp it is not thermal hazard and infrared hazards, so compared to traditional light sources, LED is an excellent light source.
According to the research on indoor general lighting, if LED can be the maximum luminance or illuminance control in a safe range, such as 100kcd, m-2 or less than 1000lx, so these products there is no blue light hazards, people can rest assured that the use of.

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