1. Spectrophotometer test method. This is a laboratory method, the equipment is expensive and bulky, not easy to carry, but the data is accurate, full, quantitative. The use of portable blue light meter produced by Shenyang Shangshan Medical Equipment Co., Ltd. can measure ultraviolet and blue light transmittance, this method is a multi-point wavelength-weighted average test, you can test its integrated blue light value, there is no sub-wavelength test value.
2, to the market of anti-blue light pen test. This method is low cost, easy to test, and can be used for terminal display.