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公开(公告)号：US11326875B2
公开(公告)日：2022-05-10
申请号：US16725968
申请日：2019-12-23
Applicant: HOYA LENS THAILAND LTD.
Inventor： Takahiro Uchidani , Hua Qi
IPC: G01B11/255 , G02C7/02 , G02B1/14 , G02B1/11
Abstract: Provided is a method for evaluating production precision of a spectacle lens having micro convex segments protruding from a convex surface on an object side of the spectacle lens, including measuring a shape of the convex surface of the spectacle lens; setting an actual device virtual model including a spectacle lens model based on the measured shape and an eyeball model; performing ray tracing calculation on the actual device virtual model and specifying an actual device convergence position where light rays converge on an front side of a retina of the eyeball model; and evaluating production precision of the spectacle lens on the basis of the actual device convergence position.
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Patent Agency Ranking
公开(公告)号：US12007626B2
公开(公告)日：2024-06-11
申请号：US17423317
申请日：2020-06-18
Applicant: HOYA LENS THAILAND LTD.
Inventor： Toshiaki Sonehara , Hua Qi
IPC: G02C7/02
CPC classification number: G02C7/022 , G02C7/024 , G02C2202/24
Abstract: An object is to not lose an effect of suppressing the progression of myopia or hyperopia even in a peripheral area of a spectacle lens. A spectacle lens and a technology related thereto are provided, the spectacle lens including: 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.
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公开(公告)号：US11880094B2
公开(公告)日：2024-01-23
申请号：US17255411
申请日：2019-06-27
Applicant: HOYA LENS THAILAND LTD. , Hua Qi , Takako Ishizaki , Shigetoshi Kono
Inventor： Hua Qi , Takako Ishizaki , Shigetoshi Kono
Abstract: Provided is an eyeglass lens 1 configured to cause rays that have entered from an object-side surface 3 to be emitted from an eyeball-side surface 4, and cause the emitted rays to converge at a predetermined position A. The eyeglass lens 1 includes a lens base material 2 having a plurality of base material convex portions 6 on at least one of the object-side surface 3 and the eyeball-side surface 4, and a coating film covering the surface provided with the base material convex portions 6. The shape of convex portions present on the outermost surface of the eyeglass lens located on a side on which the base material convex portions 6 are provided is an approximate shape of the base material convex portions configured to cause rays that have entered the eyeglass lens 1 to converge at a position B that is closer to the object than the predetermined position A is.
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公开(公告)号：US11947191B2
公开(公告)日：2024-04-02
申请号：US17255400
申请日：2019-06-27
Applicant: HOYA LENS THAILAND LTD.
Inventor： Hua Qi , Takako Ishizaki , Shigetoshi Kono
Abstract: Provided is an eyeglass lens configured to cause rays that have entered from an object-side surface to be emitted from an eyeball-side surface and cause the emitted rays to converge at a predetermined position A. The eyeglass lens includes a lens base material having a plurality of base material convex portions on at least one of the object-side surface and the eyeball-side surface, and the eyeglass lens has a configuration for suppressing stray light rays that do not pass through the vicinity of the predetermined position A or the vicinity of the position B that is closer to the object than the predetermined position A is.
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公开(公告)号：US12092547B2
公开(公告)日：2024-09-17
申请号：US17297747
申请日：2019-12-11
Applicant: HOYA LENS THAILAND LTD.
Inventor： Hua Qi , Takahiro Uchidani
CPC classification number: G01M11/0228 , G02C7/024 , G02C7/06 , G02C2202/24
Abstract: Provided is a method for evaluating an eyeglass lens that has a plurality of convex portions on at least one of an object-side surface and an eyeball-side surface, in which the eyeglass lens is evaluated based on the number of rays at a plurality of focal positions A at which rays, which pave passed through the plurality of convex portions in a predetermined evaluation region of the eyeglass lens, converge when ray tracing is performed on the predetermined evaluation region, and technology related thereto.
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公开(公告)号：US12013598B2
公开(公告)日：2024-06-18
申请号：US17255412
申请日：2019-06-27
Applicant: HOYA LENS THAILAND LTD. , Hua Qi , Takako Ishizaki , Shigetoshi Kono
Inventor： Hua Qi , Takako Ishizaki , Shigetoshi Kono
Abstract: Provided is an eyeglass lens 1 configured to cause rays that have entered from an object-side surface 3 to be emitted from an eyeball-side surface 4 and cause the emitted rays to converge at a predetermined position A. The eyeglass lens 1 includes a lens base material 2 having a plurality of base material convex portions 6 on at least one of the object-side surface 3 and the eyeball-side surface 4, and a coating film covering the surface provided with the base material convex portions 6, in which convex portions present on the outermost surface of the eyeglass lens 1 located on a side on which the base material convex portions 6 are provided and the base material convex portions 6 have common light ray convergence properties.
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