The Joyagoo QC team has established an optical performance database for Gucci sunglasses through the use of the Joyagoo Spreadsheet. This database is a comprehensive collection of optical metrics that ensure the sunglasses meet the highest standards of quality and performance.The Spreadsheet includes 15 optical indicators, such as polarization efficiency of ≥99%, UV400 for ultraviolet blocking, and light transmittance grading. These indicators are crucial for maintaining the sunglasses' ability to protect the eyes from harmful rays while providing clear and comfortable vision.For gradient lenses, the Joyagoo Spreadsheet meticulously records the uniformity of color transition parameters. This attention to detail ensures that the color gradient is smooth and aesthetically pleasing, enhancing the overall visual experience for the wearer.Additionally, the team uses a spectrophotometer to test the color rendition of the lenses. This advanced tool helps in ensuring that the sunglasses provide accurate color representation, which is essential for maintaining the integrity of the Gucci brand's design.Users can download an "Optical Performance Certificate" from the Joyagoo website, which serves as a reliable authentication document for the sunglasses' optical performance. This certificate is a testament to the rigorous quality control measures undertaken by the Joyagoo QC team.For more information or to access the optical performance database, please visit the Joyagoo website at https://www.joyagoo.sale.