| abstract |
Methods are provided for coating optical lenses and other optical articles having antireflective (AR) coatings. The lens is ideally suited for optical lenses made using a molding process that has low reflectivity, provides substantially white light reflection, has a low stress AR coating, and provides a low stress lens substrate. In one aspect, the method uses a coating composition, one having a high refractive index composition and the other having a low refractive index composition. In another aspect, the method also uses an optical monitor in conjunction with a conventional vacuum deposition apparatus whereby an optical reference lens is used and the specific optical frequency of the reflected light is measured and this measurement is subsequently determined when the desired optical coating is achieved. It is disclosed that it is used to. In another aspect, the method also preferably calculates the optical thickness using a specific ratio of blue to green to red color in the reflected light. The stress of the AR coating is also controlled by adjusting the optical thickness for each layer if necessary to minimize the difference in tensile and compressive stresses between the low and high refractive index layers.n n n n Optical lens, antireflective coating, white light band, optical frequency, refractive index |