| 摘要 |
To provide a new progressive multifocal lens having eyesight corrective power and astigmatism corrective power in the same refracting interface by forming an eyeball-side refracting interface 2 or an object-side refracting interface 3 into a curved surface denoted by a combined refracting interface 14+15 composed of an original progressive refracting interface 14 set only to exhibit a desired eyesight corrective characteristic and an original toric surface 15 set only to exhibit a desired astigmatism corrective characteristic with a combination expression denoted by combination expression (1) or (2).
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