PRSCF在保持照明角度与观察角度始终同时改变时呈现的颜色,颜色不变证明薄膜具有同轴同色的防伪功能。
The color presented by PRSCF when the illumination angle and observation angle are always changed simultaneously, and the unchanged color proves that the film has the anti-counterfeiting function of coaxial and same color.