How To Tell If The Anti-blue Light Lens Is Indeed Anti-blue Light

There are 3 ways to distinguish whether the anti-blue light lens has the effect of anti-blue light:

(1) Test standards for anti-blue lenses and photometers. This is a laboratory method. The machinery and equipment are expensive and heavy and not easy to carry, but the data and information are sufficient and quantitative analysis. General retail stores are unlikely to choose this method, but there is an alternative method that can measure the transmittance of ultraviolet light and high-definition blue light. There is no spectroscopic wavelength detection value.

(2) Anti-blue light lenses are tested with anti-blue light pens on the market. This method has low cost, convenient detection, and can be used for display in terminal equipment, but has the following three problems: the blue light wavelength of the high-definition blue pen on the sales market is based on 405nm, and the network bandwidth is about 10nm. Purple light. Relatively speaking, there is no need to find a light source with this light wavelength. If you want to use 430nm as the blue light source that manages the light wavelength, which is relatively unique, the price of the pen will also increase. The detection of the wavelength of the spot light is not sufficient for everyone. Everyone should also care about the actual transmittance of each light wavelength point, not a judged data information. On the whole, using a high-definition Blu-ray pen method is a last resort, you can choose a reference.

(3) Anti-blue lens, use the company's own statement. At this time, we must firmly believe in the mystery of the brand, and that most spectacle lens manufacturers cannot easily focus on the quality and function of their products. For customers, you can also use the same core concept. For example, you can say to consumers: "This well-known brand is an international brand, and everyone has been on the market for a long time. The customer reviews are very good. You can rest assured; it is The product inspection report produced by the brand owner is produced by our country’s organization, and it is not easy to cause any problems.”