公开(公告)号：US20170293159A1

公开(公告)日：2017-10-12

申请号：US15518158

申请日：2015-10-09

Applicant: HOYA LENS THAILAND LTD.

Inventor： Kazuma KOZU ,  Takao TANAKA

IPC: G02C7/06

CPC classification number: G02C7/063 ,  G02C7/06 ,  G02C7/068 ,  G02C2202/16

Abstract: Progressive power lens including: object side surface; eyeball side surface; and at least a near portion having a power for near vision, wherein object side surface includes power change in vertical direction of lens having progressive refractive power function, eyeball side surface includes power change in horizontal direction of lens having progressive refractive power function, when surface refractive power in the horizontal direction is defined as DHn and surface refractive power in vertical direction is defined as DVn in near power measurement point N in object side surface, relational expression of DHn

公开(公告)号：US20210271108A1

公开(公告)日：2021-09-02

申请号：US17256438

申请日：2019-06-28

Applicant: HOYA LENS THAILAND LTD.

Inventor： Kazuma KOZU

IPC: G02C7/02 ,  G02C7/06

Abstract: A progressive addition lens design method includes adjusting a lens surface shape to bring a difference between a first state when an object at a first location in a wearer's front and on the wearer's medial plane is visually recognized and a second state when an object at a second location positioned on the first location side in the horizontal direction at a constant height in the vertical direction is visually recognized in a plane parallel to a frontal plane and includes the first location at the time the lens is worn closer to a difference between a third state when an object at the first location is visually recognized and a fourth state when an object at the second location is visually recognized at the time a reference single focal lens corresponding to the progressive addition lens is worn or at the time equivalent to a naked eye.

公开(公告)号：US20170045757A1

公开(公告)日：2017-02-16

申请号：US15301214

申请日：2015-03-19

Applicant: HOYA LENS THAILAND LTD.

Inventor： Kazuma KOZU

IPC: G02C7/06 ,  G02C7/02

CPC classification number: G02C7/065 ,  G02C7/021 ,  G02C7/025 ,  G02C7/027 ,  G02C7/028

Abstract: A progressive addition lens, a manufacturing method and a design method therefor, and a progressive addition lens manufacturing system, capable of flexibly adapting to an actual use state of a wearer and are optimal for each wearer, for determining a main line of sight considering not only convergence of the eye occurring with near vision including passive accommodative power but also convergence of the eye induced by using an accommodative power margin of the eye. The design method includes a first main line of sight calculation step of calculating a first main line of sight, where accommodative convergence caused by use of the accommodative power margin is considered, based on lens design information including at least information of accommodative power of the eye and a final main line of sight determination step of determining a final main line of sight of a lens from the first main line of sight.

Abstract translation: 一种渐进附加镜片，其制造方法和设计方法以及渐进式镜片制造系统，其能够灵活地适应佩戴者的实际使用状态，并且对于每个佩戴者而言是最佳的，用于确定不考虑主视线 只有眼睛发生的收敛与近视力包括被动调节力，但也是通过使用眼睛的调节力边缘引起的眼睛收敛。 该设计方法包括：第一主视线计算步骤，基于至少包括眼睛调节力的信息的透镜设计信息来计算第一主视线，其中考虑使用调节功率裕度引起的调节收敛 以及从第一主视线确定透镜的最终主视线的最终主视线确定步骤。

公开(公告)号：US20170351116A1

公开(公告)日：2017-12-07

申请号：US15539862

申请日：2015-12-28

Applicant: HOYA LENS THAILAND LTD.

Inventor： Tadashi KAGA ,  Ayumu ITO ,  Kazuma KOZU

IPC: G02C7/06 ,  G02C7/02

CPC classification number: G02C7/063 ,  G02C7/02 ,  G02C7/024 ,  G02C7/027 ,  G02C7/06 ,  G02C7/061 ,  G02C7/065 ,  G02C7/14

Abstract: A technology concerns a spectacle lens to suppress unnecessary convergence. In the spectacle lens, when an inner horizontal direction of the spectacle lens is a direction toward the nose of a user who wears the spectacle lens, and an outer horizontal direction of the spectacle lens is a direction toward an ear of the user, a shape of a base in prism is formed in a portion in which power continuously changes and through which a main line of sight, influenced by convergence of the user of the spectacle lens, passes such that at least a part of a base out prism, which may be generated in the portion, is cancelled.