Progressive spectacle lens exhibiting only slight dynamic change of the properties of use during a horizontal viewing movements

Spectacle lens comprising

• a region (distance portion) designed for viewing at greater distances and, in particular, “to infinity”;
• a region (near portion) designed for viewing at shorter distances and, in particular, “reading distances”;
• and
• a progression zone disposed between the distance portion and the near portion, in which a power of the spectacle lens increases from a value in a distance reference point located in the distance region to a value at a near reference point located in the near portion along a line (principal meridian) curving towards a nose;
• characterized in that for minimizing a change of imaging properties with horizontal movements of a gaze along a curve described by points of penetration of principal rays through a front surface, these principal rays passing through a point having the coordinates (x−dx, y, s) at the beginning of a movement and a point having the coordinates (x+dx, y, s) at the end of the movement, at s=−40 mm and dx=10 mm an absolute value of a difference between a minimum and a maximum astigmatism occurring along the curve is smaller than AH:
• 6 Sph = −4.0 dpt, add = 1.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.172 0.106 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 0.527 0.567 Sph = −4.0 dpt, add = 2.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.401 0.341 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 0.998 1.202 Sph = −4.0 dpt, add = 3.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.490 0.384 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 1.617 2.003 Sph = 0.5 dpt, add = 1.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.197 0.130 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 0.667 0.727 Sph = 0.5 dpt, add = 2.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.413 0.353 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 1.074 1.194 Sph = 0.5 dpt, add = 3.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.523 0.390 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 1.708 2.030 Sph = 5.0 dpt, add = 1.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.205 0.135 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 0.719 0.732 Sph = 5.0 dpt, add = 2.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.411 0.333 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 1.192 1.330 Sph = 5.0 dpt, add = 3.0 dpt y = 15 mm x [mm] −15.0 15.0 AH [dpt] 0.627 0.383 y = −35 mm x [mm] −15.0 15.0 AH [dpt] 1.772 2.271