Spectrum Transmission Meter test anti-blue materials

Definition of blue light: According to the spectral band, the blue light band is mainly concentrated in the visible light region of 400nm-500nm and 380-760nm. Therefore, in the industry, we can understand blue light as 400-500nm visible light, so the anti-blue lens tester needs to test the blue light performance of 400nm and 460nm.The hazards of blue light: First, under the blue light environment for a long time, excessive blue light radiation has chronic light damage to the fundus retina. Some scientists have done similar tests. A small white mouse is continuously exposed to blue light, and after a few days of observation It was found that the layer of retinal pigment epithelium in the fundus of the mouse became significantly thinner, and eventually induced the oxidative apoptosis of photosensitive cells (cone cells and rod cells). Therefore, if people live in a blue light environment for a long time, the human retina will also be seriously affected, especially if the crystals of infants and young people are not fully developed, the impact will be more obvious. Secondly, the harm of blue light to our body is also concentrated on the effect of melatonin secretion, also known as the Sichen effect. It has been confirmed that the blue light in visible light is the spectrum with the strongest inhibition rate of melatonin secretion at night, and the blue light at a wavelength of 450 nm is the most resistant to the spectrum of melatonin. Finally, blue light has the shortest wavelength, so it is easy to scatter in the air to form glare and other bad places.As some industries such as the ophthalmology medical industry, the eyeglass lens industry, and the LED industry have become more and more concerned about the hazards of blue light, many unscrupulous merchants have also found a way to get rich, and they do not hesitate to overstate the effectiveness of their anti-blue light glasses brand Over-amplify the blue light hazard. Therefore, the industry urgently needs an anti-blue light tester to detect the anti-blue light performance of eyeglass lenses. The LS108 anti-blue spectrum transmission meter came into being. The light source of the instrument was screened by the spectrometer, and the deviation from the data of the large spectrometer did not exceed 2%. However, there is no unified standard for the industry in the country. At present, it can only be based on the internal standards of the industry.Anti-blue spectrum transmission meter.
How to use the anti-blue spectrum transmission meter: plug in the power and turn on the power switch of the tester. The instrument first performs self-test and self-calibration. After the self-calibration is completed, the three display values ​​are all "100", indicating that the transmittance without the test object is 100%. Put the sample to display the test data immediately.