Patent ID: 11892712
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. The product as claimed in claim 1, further comprising:
(i) a representation, stored on the non-transitory data medium as the computer-readable data, of a predetermined arrangement of the progressive power spectacle lens in front of an eye of a progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, or (ii) the non-transitory data medium having the computer-readable data concerning the predetermined arrangement of the progressive power spectacle lens in front of an eye of a progressive power spectacle wearer, for whom the progressive power spectacle lens is intended,
wherein the progressive power spectacle lens has a distribution of a spherical equivalent for the predetermined arrangement of the progressive power spectacle lens in front of the eye of the progressive power spectacle wearer, for whom the progressive power spectacle lens is intended,
wherein the product further includes:
(i) a representation, stored on the non-transitory data medium as the computer-readable data, of a residual astigmatism distribution for the predetermined arrangement of the progressive power spectacle lens in front of the eye of the progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, and/or
(ii) a representation, stored on the non-transitory data medium as the computer-readable data, of an astigmatic power distribution, required for a full correction, for the predetermined arrangement of the progressive power spectacle lens in front of the eye of the progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, and/or
(iii) a representation, stored on the non-transitory data medium as the computer-readable data, of a prescription and an object distance model for the predetermined arrangement of the progressive power spectacle lens in front of the eye of a progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, and/or
(iv) a representation, stored on the non-transitory data medium as the computer-readable data, of a distribution of the spherical equivalent for the predetermined arrangement of the progressive power spectacle lens in front of the eye of the progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, and/or
(v) the non-transitory data medium having the computer-readable data concerning a residual astigmatism distribution for the predetermined arrangement of the progressive power spectacle lens in front of the eye of the progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, and/or
(vi) the non-transitory data medium having the computer-readable data concerning an astigmatic power distribution, required for a full correction, for the predetermined arrangement of the progressive power spectacle lens in front of the eye of the progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, and/or
(vii) the non-transitory data medium having the computer-readable data concerning a prescription and an object distance model for the predetermined arrangement of the progressive power spectacle lens in front of the eye of a progressive power spectacle wearer, for whom the progressive power spectacle lens is intended, and/or
(viii) the non-transitory data medium having the computer-readable data concerning a distribution of the spherical equivalent for the predetermined arrangement of the progressive power spectacle lens in front of the eye of the progressive power spectacle wearer, for whom the progressive power spectacle lens is intended,
wherein the progressive power spectacle lens includes an intermediate corridor and a principal line of sight, and where in the refractive index of the progressive power spectacle lens varies in space such that for a predetermined residual astigmatism value Ares,lim of the group
(a) the residual astigmatism value Ares,lim lies in the range between 0.25 dpt and 1.5 dpt,
(b) the residual astigmatism value Ares,lim lies in the range between 0.25 dpt and 1.0 dpt,
(c) the residual astigmatism value Ares,lim lies in the range between 0.25 dpt and 0.75 dpt,
(d) the residual astigmatism value Ares,lim lies in the range between 0.25 dpt and 0.6 dpt,
(e) the residual astigmatism value Ares,lim lies in the range between 0.25 dpt and 0.5 dpt,
(f) the residual astigmatism value Ares,lim is 0.5 dpt, on a horizontal section at a narrowest point of the intermediate corridor or for a horizontal section through a point on the principal line of sight at which the half addition is achieved, the following relationship applies within a region with a horizontal distance of 10 mm on both sides of the principal line of sight:, B
  >
  
    c
    ×
    
      
        A
        
          res
          ,
          lim
        
      
      
        grad
        ⁢
        
          
        
        ⁢
        W, wherein grad W describes the power gradient of the spherical equivalent in the direction of the principal line of sight of the progressive power spectacle lens at the narrowest point of the intermediate corridor on the principal line of sight or in a point on the principal line of sight at which the half addition is achieved, B describes the width of the region in the progressive power spectacle lens in which the residual astigmatism is Ares≤Ares,lim, where c is a constant selected from the group:
(a) 1.0<c,
(b) 1.1<c,
(c) 1.2<c, or
(d) 1.3<c.