Patent ID: 11886047
Assignee: HOYA LENS THAILAND LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The method according to claim 1, wherein
the amount of extra astigmatism reduces an inherent astigmatism change rate, a maximum amount of inherent astigmatism, and a skew distortion, wherein
the reduced inherent astigmatism change rate is smaller than an inherent astigmatism change rate corresponding to a zero amount of extra astigmatism,
the reduced maximum amount of inherent astigmatism is smaller than a maximum amount of inherent astigmatism corresponding to a zero amount of extra astigmatism, and
the reduced skew distortion is smaller than a skew distortion corresponding to a zero amount of extra astigmatism.