The UV Laser Safety Window Film(1.52m *1m) is made of a super wear-resistant PET protective film layer and a multi-layer film compounded with a nano-absorbing material of a specific wavelength by a special process. This specific wavelength nano-absorbing material adopts the composite absorption principle (absorption + reflection), which overcomes the difficulty of achieving a high OD value for thin films. The protective film absorbs and reflects specific wavelength bands while maintaining high light transmittance and high definition, so as to achieve a laser-blocking effect of more than 99.9%.