Blue Laser Pointer Can Light a Match
"Be careful to the 30000mw laser pointer, ask the children not to make the laser pointer as a toy!" Some time ago, the field experiment China experts, teach people to distinguish false.Among them, the people's livelihood quality laboratory expert service group field with a blue laser pen to start the experiment, in the light of the blue laser pointer, can actually light a match.
"Do not look down upon the hazards of the laser pointer." Experts and his assistant took out a blue laser pen, single point of power "as a solid light source new blue LED lamp, the light once entering one of the fundus, the damage of retina is greatly, so its Blu ray harm can not be ignored." In the end how much harm it? Experts and his assistant with a blue 20000mw laser pen aimed at matches, did not have a moment, even the match will be lit, "with a 1W blue laser pointer burst balloons, lit firecrackers in the demolition of gunpowder is very easy to do".
"Be alert to the laser pointer, ask the children not to make the burning laser pointers as a toy!" Experts give advice, he said, to be reasonable use of LED products, to avoid the harm of Blu ray, but the Blu ray is not equal to the harm is blue. According to the China electric light source quality supervision and Inspection Center (Shanghai) on the 27 LED lamp Market Sample survey results show that as long as the product diffusion cover intact, it will not constitute a blue light hazard. Experts believe that in daily life, to avoid the human eye long time to look directly at the surface of the light source, for the home of the weak awareness of infants and the elderly, should take measures to prevent the light source to the eye. Choose a diffusion cover (shield) of the LED lamp can decrease the damage of the Blu ray. Be careful not to use LED lamp shade is broken, not in the power supply has been shutdown for shade, not to take the diffusion cover lighting; choose single power is relatively small the LED lamp as the light source, and avoid light beads exposed directly or with transparent cover for the LED lamp; students with lamp color temperature choice is best not more than 4000K. The proposed election with warm white color light yellow as well.
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