If you get the coefficients of an aspheric surface and have no computer at hand, you could run this APP to input the coefficients to get its sagitta and tangential angle. Also you can see the profile about this aspheric surface roughly.
If you get the coefficients of an aspheric surface and have no computer at hand, you could run this APP to input the coefficients to get its sagitta and tangential angle. Also you can see the profile about this aspheric surface roughly.