US 12,007,626 B2
Spectacle lens and method for designing the same
Toshiaki Sonehara, Tokyo (JP); and Hua Qi, Tokyo (JP)
Assigned to HOYA LENS THAILAND LTD., Pathumthani (TH)
Appl. No. 17/423,317
Filed by HOYA LENS THAILAND LTD., Pathumthani (TH)
PCT Filed Jun. 18, 2020, PCT No. PCT/JP2020/025119
§ 371(c)(1), (2) Date Jul. 15, 2021,
PCT Pub. No. WO2020/262570, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-117842 (JP), filed on Jun. 25, 2019.
Prior Publication US 2022/0121038 A1, Apr. 21, 2022
Int. Cl. G02C 7/02 (2006.01)
CPC G02C 7/022 (2013.01) [G02C 7/024 (2013.01); G02C 2202/24 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A spectacle lens comprising:
a first area that causes light rays incident on an object-side face of the lens to exit from an eyeball-side face of the lens and to converge at a predetermined position A on a retina of a wearer; and
a plurality of second areas configured to cause light rays to converge at a position B on the object side or a position C on the distal side relative to the position A,
wherein, in the first area in a peripheral area of the spectacle lens that is a radius range from 4.5 mm to 25 mm of a lens center, a refractive power error in a meridional direction and a refractive power error in a sagittal direction have values that cause light rays to converge in a direction extending from a vicinity of the position A toward the position B if the second areas cause the light rays to converge at the position B, or have values that cause light rays to converge in a direction extending from the vicinity of the position A toward the position C if the second areas cause the light rays to converge at the position C.