| 摘要 |
<p>The optimum optical properties of a spectacle lens that correspond with the state in which the spectacle lens is worn by respective wearers are found and evaluated. Three-dimensional shape data of the spectacle lens comprising the determinations of a three-dimensional determination device that determines the surface shape f the spectacle lens, parameters of the state in which the spectacle lens is worn, such as the distance from the center of rotation, and material parameters, such as the refractive index of the spectacle lens, are input to a computer that calculates optical properties of a spectacle lens. An optical model of the state in which the spectacle lens is worn is constructed by the computer based on these input data and optical properties at each position on the spectacle lens relating to the principal ray, or the beam comprising the principal ray, in the direction of the line of vision that passes through the center of rotation of the eyeball is calculated by this optical model and the calculation results are output to a printer, etc. <IMAGE></p> |
