Multifocal toric lens
AssigneePegavision Corporation
InventorsChia-Hung Lan, Yi-Fang Huang
Life of this patent
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AssigneePegavision Corporation
InventorsChia-Hung Lan, Yi-Fang Huang
Estimating the term…
An intelligent multifocal lens includes an optical zone. The optical zone includes a near vision zone, a transition vision zone, and a far vision zone surrounding the near vision zone and the transition vision zone. An add power of the near vision zone has a negative correlation with a radius of the near vision zone. A reduction of the power of the transition zone is in a range of 0.1 D to 0.6 D. The near vision zone and the transition vision zone have an interface therebetween, and a power of the near vision zone and a power of the transition vision zone at the interface therebetween are the same. The transition vision zone and the far vision zone have an interface therebetween, and a power of the transition vision zone and a power of the far vision zone at the interface therebetween are the same.
An multifocal lens, comprising:
An multifocal toric lens for astigmatism, comprising:
Dependencies are inferred from the claim text.