Nowadays, almost every glasses wearer know bluecut lens. Once you enter a glasses shop and try to buy a pair of glasses, the salesman/woman probably recommend you bluecut lenses, since there are many advantages for bluecut lenses. Bluecut lenses can prevent eye strain and eye dryness, reduce eye disease risk and provide you better sleep… Customers know bluecut lenses are a good choice for them, but there are so many brands/factories to provide bluecut lenses. Why do the customers choose your lenses? Why are your bluecut lenses better than others?
On the internet, there are many ways and tips to teach you how to check your bluecut lens. Undeniably, some ways will tell if your blue light glasses work as intended. They are really useful to see if most blue light is filtered out. However, as a professional Blue light blocking lenses wholesale and manufacture, you must know the professional way to test the blue light blocking lenses.
The only way to accurately measure how much blue light a blue light blocker lens filters out is to use a visible spectrophotometer. This instrument can measure the exact blue light–filtering capacity with high precision.
An essential part of how this type of expensive laboratory instrument works is that the light used during lens testing is standardized. This means that the incoming light contains all the colors needed to perform an accurate test.
With this understanding, it is easy to see that a handheld visible spectrometer can't give accurate spectral analysis test results. Any measurement taken using a non-standardized light source, such as a laser pen or other random light source can't be trusted.
With the Spectrophotometer, we will get accurate reports on blue blocking rate, transmittance on each wavelength…
As you may know, the lens tranmittance is inversely proportional to the blue light blocking rate. When the blue light blocking rate is higher, the lens tranmittance usually is lower. So a good bluecut lens not only has high transmittance, and also has high blue light blocking rate. Universe Clear Base Bluecut lens is a very good choice for you. Universe Clear Base Bluecut lens is made with new blueblock lens material plus the revolutionary anti-reflective coating technology. With the innovative new bluecut material and coating, keeping the same blue light blocking rate as the traditional bluecut lens, the lens is more clear and transparent compared with the traditional bluecut lenses. For more information, you can check our website:https://www.universeoptical.com/deluxe-blueblock-product/