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    • 15. 发明申请
    • Progressive refractive power lens
    • 渐进屈光力镜片
    • US20050099596A1
    • 2005-05-12
    • US10504967
    • 2004-02-17
    • Kazutoshi Kato
    • Kazutoshi Kato
    • G02C7/06G02C7/02
    • G02C7/068G02C7/061
    • It has been difficult to manufacture an inside surface progressive-power lens which is as thin as an outside surface progressive-power lens due to a limited configuration of an object-side refractive surface of the inside surface progressive-power lens. However, a thin progressive-power lens with less blur and distortion can be provided at a reduced cost by forming its object-side refractive surface from an aspherical surface which is symmetric with respect to a rotational axis and has a smaller curvature at a distance reference point than that at a near reference point, and by forming an eyeball-side refractive surface from a combination of a progressive surface, an astigmatic refraction surface and an “as-worn” corrective aspherical surface.
    • 由于内侧渐进屈光力镜片的物体侧折射面的构造有限,难以制造与外表面渐进屈光力镜一样薄的内表面渐进屈光力镜片。 然而,通过从相对于旋转轴线对称的非球面形成其物体侧折射表面并且在距离基准处具有较小的曲率,可以以较低的成本提供具有较少模糊和变形的薄的渐进屈光力镜片 并且通过从渐进表面,像散折射表面和“磨损”校正非球面表面的组合形成眼球侧折射表面。
    • 17. 发明授权
    • Progressive power lens
    • 渐进功率镜头
    • US5455642A
    • 1995-10-03
    • US920591
    • 1992-08-25
    • Kazutoshi Kato
    • Kazutoshi Kato
    • G02C7/02G02C7/06
    • G02C7/068G02C7/061
    • In the present invention, the distance, the intermediate, and the reading portions are smoothly jointed together, and thereby the present invention provides a progressive power lens which is capable of enlarging an area, which provides an excellent field of view, by improving aberration of the lens body as well as reducing in weight and thickness.The curvature of one of two refracting interfaces of the distance portion or the reading portion varies along the principal gazing line from the vicinity of the center of the lens toward the peripheral portion thereof, the refracting interfaces oppositely facing to each other.
    • PCT No.PCT / JP91 / 01759 Sec。 371日期:1992年8月25日 102(e)日期1992年8月25日PCT 1991年12月25日PCT PCT。 第WO92 / 12452号公报 日本1992年7月23日。在本发明中,距离,中间和读取部分平滑地接合在一起,从而本发明提供了能够扩大面积的渐进屈光力镜片,其提供了优异的场 的观点,通过改善透镜体的像差以及减轻重量和厚度。 距离部分或读取部分的两个折射界面之一的曲率沿着主透视线从透镜中心附近朝向其周边部分变化,折射界面彼此相对。
    • 19. 发明授权
    • Progressive power lens and progressive power lens design method
    • 渐进功率透镜和渐进屈光力镜片设计方法
    • US08550622B2
    • 2013-10-08
    • US13290936
    • 2011-11-07
    • Takateru MoriKazutoshi KatoAyumu Ito
    • Takateru MoriKazutoshi KatoAyumu Ito
    • G02C7/06
    • G02C7/065G02C7/061
    • A progressive power lens including a distance portion for visual recognition of a far working distance, a near portion for visual recognition of a near working distance, and an intermediate portion provided between the distance portion and the near portion, the intermediate portion including a position of an amount of intermediate inset in which a visual line when the intermediate working distance is visually recognized passes an eyeball side surface of the progressive power lens, and addition at intermediate position for viewing an intermediate working distance smaller than the far working distance and larger than the near working distance being set to the position of the amount of intermediate inset.
    • 一种渐进式功率透镜,包括用于远距离工作距离的视觉识别的距离部分,用于近距离工作距离的视觉识别的近部分,以及设置在所述距离部分和所述近距离部分之间的中间部分,所述中间部分包括 当视觉识别出中间工作距离时的视线的中间插入量通过渐进屈光力镜片的眼球侧表面,并且在用于观察比远距离工作距离小的中间工作距离的中间位置处的添加量大于 近工作距离被设定为中间插入量的位置。
    • 20. 发明授权
    • Progressive refractive power lens
    • 渐进屈光力镜片
    • US07159981B2
    • 2007-01-09
    • US10504967
    • 2004-02-17
    • Kazutoshi Kato
    • Kazutoshi Kato
    • G02C7/06G02C7/10
    • G02C7/068G02C7/061
    • It has been difficult to manufacture an inside surface progressive-power lens which is as thin as an outside surface progressive-power lens due to a limited configuration of an object-side refractive surface of the inside surface progressive-power lens. However, a thin progressive-power lens with less blur and distortion can be provided at a reduced cost by forming its object-side refractive surface from an aspherical surface which is symmetric with respect to a rotational axis and has a smaller curvature at a distance reference point than that at a near reference point, and by forming an eyeball-side refractive surface from a combination of a progressive surface, an astigmatic refraction surface and an “as-worn” corrective aspherical surface.
    • 由于内侧渐进屈光力镜片的物体侧折射面的构造有限,难以制造与外表面渐进屈光力镜一样薄的内表面渐进屈光力镜片。 然而,通过从相对于旋转轴线对称的非球面形成其物体侧折射表面并且在距离基准处具有较小的曲率,可以以较低的成本提供具有较少模糊和变形的薄的渐进屈光力镜片 并且通过从渐进表面,像散折射表面和“磨损”校正非球面表面的组合形成眼球侧折射表面。