CN2373810Y - 凸透阶梯棱镜式眼镜 - Google Patents

凸透阶梯棱镜式眼镜 Download PDF

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Publication number
CN2373810Y
CN2373810Y CN99211181U CN99211181U CN2373810Y CN 2373810 Y CN2373810 Y CN 2373810Y CN 99211181 U CN99211181 U CN 99211181U CN 99211181 U CN99211181 U CN 99211181U CN 2373810 Y CN2373810 Y CN 2373810Y
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prism
convex lens
eyeglass
object distance
lens
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许澍翔
许晓刚
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Room 301 Unit 1 House 39 No 16 Beidadisanli
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Priority to EP00926659A priority patent/EP1184710A4/en
Priority to KR1020017015066A priority patent/KR100715085B1/ko
Priority to AU45355/00A priority patent/AU773051B2/en
Priority to HK02103930.5A priority patent/HK1042138A1/zh
Priority to JP2000620413A priority patent/JP2003500695A/ja
Priority to CA002374734A priority patent/CA2374734A1/en
Priority to PCT/CN2000/000126 priority patent/WO2000072082A1/zh
Priority to US09/575,999 priority patent/US6347869B1/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/08—Auxiliary lenses; Arrangements for varying focal length
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/14—Mirrors; Prisms
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/24—Myopia progression prevention

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

本实用新型涉及一种持续近作业时戴用的眼镜,其镜片由一体化的凸透镜及底向鼻侧的棱镜构成。为减少镜片厚度及重量,棱镜采用阶梯式结构,整个镜片用光学树脂一次注塑热固成型,凸透镜的屈光度等于以米为单位的物距的倒数,棱镜的度数=(0.5瞳距/物距)×100。眼镜可将近物光变为远物光,大大减轻了持续近作业时的眼疲劳,并彻底消除了产生近视眼的后天主要环境因素。

Description

凸透阶梯棱镜式眼镜
本实用新型涉及一种持续近作业时戴用的眼镜，可预防近视眼的发生，减轻近作业时的眼疲劳。
近视眼的发生原因，公认有遗传和环境两大因素。但从人类发展的历史长河追根溯源，考察环境、适应、突变、进化的辩证关系，遗传也是由环境决定的。这里所谓的环境因素即近环境。
目前，对发生近视眼的遗传因素还暂不能用基因改造的办法来解除；对环境因素，专家们提出了不少限制性措施，例如，长期近作业时的间断性休息、眺远、眼保健操，阅读书写时照明要好，字与纸张的明暗反差要大，坐姿要正确，视物距不能过近，字不能太小等等。有的提出近雾视法，即当近作业时，戴用低度的老花镜，以雾视(视物不清)强使造成假性近视的睫状肌痉挛放松下来。还有的在此基础上加上脉冲电刺激、磁场或穴位按摩等，使睫状肌进一步松弛。这些办法对预防近视都有一定作用，但并未触动引起近视眼的后天主要因素——“近环境”这个根本。(1.徐广第，近视眼的预防，徐广第，眼科屈光学，北京，军事医学科学出版社，1995，59-60.2.刘欣华，近视的预防，刘欣华，近视眼的预防和治疗，郑州，河南医科大学出版社，1996，50-81.3.汪芳润，近视眼的预防，汪芳润，近视眼，上海，上海医科大学出版社，1996，324-339.)
本实用新型的目的就是要用光学办法把近物光变为远物光，使近环境在光学上等效于远环境，从而也就彻底消除了导致近视眼发生的后天最主要的环境因素。
本实用新型是这样实现的：采用优质光学塑料，如烯丙基二甘醇碳酸酯(CR-39)、聚碳酸酯(PC)等，通过特制模具注塑热固一次成型，获得凸透阶梯棱镜，再经精加工、抛光、镀膜增透加硬、磨边、装框，制成凸面在前、棱镜在后底向鼻侧的眼镜。凸透镜及棱镜的度数依近作业的物距而定。凸透镜的屈光度D和以米为单位的物距d的关系为：D＝1/d；棱镜的度数Dp和瞳距de及物距d的关系为：Dp＝(0.5de/d)×100。例如阅读书写时物距为0.3米，则透镜的屈光度应为3.3D，若瞳距为0.06米，则棱镜度数为10Δ。操作电脑长期看屏幕时，物距约0.5米，凸透镜屈光度应为2.0D，棱镜应为6Δ。因此模具应根据使用需要设计。阶梯棱镜的阶距过宽则镜片厚度增加，过窄则分辨率降低，本方案阶距取1-2毫米。
采用本方案的优点有：(1)看近物如同看远物一样，不需要调节及会聚，消除了持续近作业时持续近反射造成的内外眼肌疲劳、头昏眼花、眼血循环障碍以及使眼球变形的压力。(2)不是停下工作戴镜，而是戴镜工作，既不耽误工作，又使眼在工作全程得到保护。(3)只是持续近作业时戴用，短时间或间歇性近作业则不必戴用，因此丝毫不会减弱眼的调节功能及会聚功能。(4)其作用不仅是预防近视，还同时在于消除持续近作业时的不适——近反射综合症，因此不分老中青少、正视、近视和老花，皆宜戴用。
下面结合附图和实施例对本实用新型进一步说明。
图1是本实用新型实施例的正面图。
图2是本实用新型实施例的水平剖视图。
图3是本实用新型实施例左右镜片阶梯棱镜两个阶的水平剖视放大图。
图中1.光学树脂镜片  2.镜片的凸透镜部分  3.镜片的阶梯棱镜  4.眼镜架  5.近物体上的被注视点  6.阶梯距
在图1中，镜片(1)安装于镜架(4)上。
在图2中，镜片由一体化的凸透镜(2)和阶梯棱镜(3)所构成，镜片的凸面向物，棱镜面向眼。由被注视的近物点(5)发出的发散光经镜片的凸透镜(2)后变为斜入射的平行光，再经阶梯棱镜(3)折射，变为向眼正入射的平行光，即近物光转化为远物光。这时两眼看近物时，如同看远物一样，不需调节，也不需会聚。
在图3中，所示的棱镜的阶梯距(6)实际取1-2毫米。棱镜的一个角为直角，其顶角α依棱镜的度数及片基折射率按公知的计算得出。
在使用时，根据眼和物距的不同情况，所选用的镜片度数也不一样，设瞳距0.06米，当0.3米及0.5米持续近作业时，选用镜片度数如下表：
   物距(米)    正视正视老花                  近视(D)1          2          3        4         5        6
0.3   +3.3D球10Δ棱 +2.3D球    +1.3D球   +0.3D球  -0.7D球   -1.7D球   -2.7D球10Δ棱    10Δ棱   10Δ棱  10Δ棱   10Δ棱   10Δ棱
0.5   +2.0D球6Δ棱 +1.0D球    0D球      -1.0D球  -2.0D球   -3.0D球   -4.0D球6Δ棱     6Δ棱    6Δ棱   6Δ棱    6Δ棱    6Δ棱

Claims (4)

1.本实用新型涉及一种持续近作业戴用的眼镜，由光学塑料镜片及镜架组成，其特征是镜片为一体化的凸透镜及底向鼻侧的棱镜构成。
2.根据权利要求1所述的眼镜镜片，其特征是镜片的凸透镜及棱镜度数依物距而定，凸透镜的屈光度等于以米为单位的物距的倒数；棱镜的度数＝(0.5瞳距/物距)×100。
3.根据权利要求1所述的眼镜镜片，其特征是镜片棱镜为阶梯式，阶距1-2毫米。
4.根据权利要求1所述的眼镜镜片，其特征是镜片凸面在前向物侧，棱镜面在后、向眼侧。
CN99211181U 1999-05-24 1999-05-24 凸透阶梯棱镜式眼镜 Expired - Fee Related CN2373810Y (zh)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CN99211181U CN2373810Y (zh) 1999-05-24 1999-05-24 凸透阶梯棱镜式眼镜
PCT/CN2000/000126 WO2000072082A1 (en) 1999-05-24 2000-05-22 A spectacle with lens and prisms
AU45355/00A AU773051B2 (en) 1999-05-24 2000-05-22 A spectacle with lens and prisms
KR1020017015066A KR100715085B1 (ko) 1999-05-24 2000-05-22 렌즈 및 프리즘을 갖는 안경
EP00926659A EP1184710A4 (en) 1999-05-24 2000-05-22 GLASSES WITH LENS AND AND PRISMS
HK02103930.5A HK1042138A1 (zh) 1999-05-24 2000-05-22 凸透階梯棱鏡式眼鏡
JP2000620413A JP2003500695A (ja) 1999-05-24 2000-05-22 眼 鏡
CA002374734A CA2374734A1 (en) 1999-05-24 2000-05-22 Convex lens and stepped prism combined glasses
US09/575,999 US6347869B1 (en) 1999-05-24 2000-05-23 Convex lens and stepped prism combined glasses

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Application Number Priority Date Filing Date Title
CN99211181U CN2373810Y (zh) 1999-05-24 1999-05-24 凸透阶梯棱镜式眼镜

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EP (1) EP1184710A4 (zh)
JP (1) JP2003500695A (zh)
KR (1) KR100715085B1 (zh)
CN (1) CN2373810Y (zh)
AU (1) AU773051B2 (zh)
CA (1) CA2374734A1 (zh)
HK (1) HK1042138A1 (zh)
WO (1) WO2000072082A1 (zh)

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WO2006092088A1 (fr) * 2005-03-01 2006-09-08 Zhenjiang Wanxin Optical Glasses Co., Ltd. Lunettes composites
CN104020584A (zh) * 2013-03-01 2014-09-03 埃西勒国际通用光学公司 用于对眼镜片的体位棱镜进行优化的方法
CN105242406A (zh) * 2015-11-11 2016-01-13 田文胜 一种3d眼镜
CN107735471A (zh) * 2015-07-10 2018-02-23 费罗公司 用于抛光有机聚合物基眼用基材的浆液组合物和添加剂以及方法
WO2021012543A1 (zh) * 2019-07-19 2021-01-28 浙江工业大学 一种抗疲劳眼镜及其制作方法

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Publication number Priority date Publication date Assignee Title
WO2006092088A1 (fr) * 2005-03-01 2006-09-08 Zhenjiang Wanxin Optical Glasses Co., Ltd. Lunettes composites
CN104020584A (zh) * 2013-03-01 2014-09-03 埃西勒国际通用光学公司 用于对眼镜片的体位棱镜进行优化的方法
CN104020584B (zh) * 2013-03-01 2018-03-16 依视路国际公司 用于对眼镜片的体位棱镜进行优化的方法
CN107735471A (zh) * 2015-07-10 2018-02-23 费罗公司 用于抛光有机聚合物基眼用基材的浆液组合物和添加剂以及方法
CN107735471B (zh) * 2015-07-10 2021-02-12 费罗公司 用于抛光有机聚合物基眼用基材的浆液组合物和添加剂以及方法
CN105242406A (zh) * 2015-11-11 2016-01-13 田文胜 一种3d眼镜
WO2021012543A1 (zh) * 2019-07-19 2021-01-28 浙江工业大学 一种抗疲劳眼镜及其制作方法

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HK1042138A1 (zh) 2002-08-02
CA2374734A1 (en) 2000-11-30
US6347869B1 (en) 2002-02-19
KR100715085B1 (ko) 2007-05-07
AU773051B2 (en) 2004-05-13
AU4535500A (en) 2000-12-12
WO2000072082A1 (en) 2000-11-30
KR20020012241A (ko) 2002-02-15
JP2003500695A (ja) 2003-01-07
EP1184710A1 (en) 2002-03-06
EP1184710A4 (en) 2004-03-10

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