… An efficient approach for the designing of ophthalmic lenses, based on the optimization of
the aspherical surface coefficients is presented. We show that five optimization constraints are …

… Many higher order coefficients of aspheric surfaces can easily … ophthalmic lens could also
make the spectacle lenses well … spherical ophthalmic lens and other conicoidal ophthalmic lens…

… The main factor is the large differences in the temperature expansion coefficient between
the plastic substrate and the dielectric coating which leads to large stress differentials. One …

… Here, we presented analytical expressions for the surface coefficients c 2 up to c 8 and a
general recursive relation for higher-order terms. The need for higher-order polynomial terms in …

… coefficients with Equations (A2,l) and (A2,2), For the refractive index profile containing up to
a Cj coefficient, the N^j coefficients … Perhaps the next step is to try to model the lens surface …

… Ophthalmic Applicator and water phantom. Dotted line represents curve fit for the surface
dose rate and attenuation coefficient. Error bars are smaller than the symbols used, and thus …

… for specifying aspheric surfaces have been in use, particularly in the case of ophthalmic
lenses. The purpose of this paper is to review the nature of aspheric surfaces, their mathematical …

… Regarding hardness, silica glass has a Knoop hardness coefficient of around 500kg/mm2, …
, highly symmetric surfaces is still mandatory in a book about ophthalmic lenses, either …

… five aspherical coefficients of the first surface P 1 , … surface of the ophthalmic lens, to within
a range of 1D is possible, and promises some benefits for the reduction of production surface …

… The radii of the front and back spherical surface of the ophthalmic lens are 292.5 mm and
146.25 mm, respectively. The … The fitting coefficients of the equation are listed in Table 2. …