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    Lens for eyeglasses
    8.
    发明公开
    Lens for eyeglasses 失效
    Brillenlinse

    公开(公告)号：EP0756183A3

    公开(公告)日：1997-11-12

    申请号：EP96112149.8

    申请日：1996-07-26

    申请人： KYOWA HAKKO KOGYO CO., LTD. ,  YAMAMOTO KOGAKU CO., LTD.

    发明人： Matsushita, Shoshiro ,  Shimizu, Ikuo ,  Mabuchi, Kazuko ,  Ishiba, Yoshihisa ,  Murata, Oritoshi

    IPC分类号： G02B1/04

    CPC分类号： G02C7/10 ,  C08K5/132 ,  G02B1/041 ,  G02C7/12

    摘要： A lens for eyeglasses is disclosed, which can reduce the glare of sunlight, while retaining the lightness in the field of vision. The lens is made of a synthetic resin base material which contains an organic dye with an absorption maximum in the vicinity of the central wavelength on the standard relative visibility curve, as well as an ultraviolet light absorbing agent and a blue light absorbing agent, and which may further contain an infrared light absorbing agent and/or an infrared light reflecting agent as an optional ingredient. The lens has the optical characteristics that it has a transmittance minimum in the range of wavelength extending from 550 to 585 nm on the transmittance curve; the transmittance of light at the transmittance minimum is not greater than 25%; the average transmittance of light over the range of wavelength extending from 590 to 660 nm is not less than 15%; and the average transmittance of light over the range of wavelength extending from 470 to 550 nm is not less than 10%.

    摘要翻译： 公开了一种用于眼镜的透镜，其可以减少阳光的眩光，同时保持视野中的亮度。 透镜由合成树脂基材制成，其含有在标准相对可见度曲线上在中心波长附近具有最大吸收的有机染料，以及紫外光吸收剂和蓝光吸收剂，其中 还可以含有作为任意成分的红外光吸收剂和/或红外光反射剂。 该透镜具有在透射率曲线上从550至585nm的波长范围内的透射率最小值的光学特性; 透光率最小值下的透光率不大于25％; 在从590nm到660nm的波长范围内的光的平均透射率不小于15％; 并且在从470nm到550nm的波长范围内的光的平均透射率不小于10％。