WO2005003841A1 - Lunettes corrigeant le daltonisme - Google Patents

Lunettes corrigeant le daltonisme Download PDF

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Publication number
WO2005003841A1
WO2005003841A1 PCT/CN2004/000756 CN2004000756W WO2005003841A1 WO 2005003841 A1 WO2005003841 A1 WO 2005003841A1 CN 2004000756 W CN2004000756 W CN 2004000756W WO 2005003841 A1 WO2005003841 A1 WO 2005003841A1
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Prior art keywords
color
blind
lens
normal
correcting
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PCT/CN2004/000756
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English (en)
French (fr)
Inventor
Mou Chen
Xiaoguang Chen
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Mou Chen
Xiaoguang Chen
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Priority to EP04738354A priority Critical patent/EP1744201A4/en
Priority to US10/563,729 priority patent/US20110090453A1/en
Publication of WO2005003841A1 publication Critical patent/WO2005003841A1/zh

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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
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection

Definitions

  • the invention belongs to the technical field of color blind correction, and particularly relates to a color blind correction glasses and a manufacturing method thereof.
  • ZL98201888.6 patented product is a single-eye color-corrected lens, which will inevitably cause color difference, affecting vision and color blind correction.
  • the technical problem to be solved by the present invention is to provide a color-blind correcting spectacles which can make the base color, hue, saturation and brightness in the eyes of a color blind patient normal, and a method of manufacturing the same.
  • one side of the frame is mounted with a lens which corrects the proportion of the three primary colors to be normal
  • the other side of the frame is mounted with a lens which improves the color perception and tends to be normal
  • the lens which corrects the ratio of the three primary colors to normal is According to the color blindness category and the step, the correction lens with the corresponding correction light* curve is selected, and the corrective lens with the color vision brightness tends to be normal is selected according to the degree of improvement of the transmittance of 500-600 nm.
  • the method for preparing the three-color proportional lens of the present invention is: first determining the type, step and color blind correction spectrum curve by the color vision detector, then dyeing the substrate, designing the film system according to the spectral curve, and then placing the substrate on the vacuum coating machine.
  • the coating is carried out according to the film design process, and the last layer is chrome-plated;
  • the lens for improving the color perception brightness is: first, the brightness is normalized by the color vision detector, and the ratio of the corrected three primary colors is unchanged, thereby determining the lens correction light Curve, then select the same substrate as the correcting three primary color ratio lens to dye the same color, design the film system according to the selected light curve, and then place the substrate in the vacuum coating machine according to the film design process, the last one
  • the layer is chrome-plated, and the above two kinds of lenses are installed in the frame, that is, the color-blind correcting glasses.
  • the advantages of the invention are: according to the human color blind correction mechanism and the physiology and psychological function of the human eyes, the primary color, the hue, the saturation and the lightness of the color blindness after wearing the color blindness tend to be Normal color-blind glasses achieve the goal of truly correcting color blindness.
  • the stratum corneum of the retina is decomposed into three primary colors of red (R), green (G), and blue (B) and reflected to the face of red, green, and blue.
  • Three kinds of cone cells respectively generate light stimulation values R, G, and B, and undergo matrix transformation through the retina to mediate the luminance signal L and the color difference signals II, V, and
  • V v ( B-L )
  • U is the red difference signal
  • V R is the blue difference signal
  • Ku and ⁇ ⁇ are the weighting coefficients
  • L, U The V signal is transmitted from the three optic nerve fibers with different thicknesses to the corresponding cell layer of the lateral geniculate body through the optic chiasm.
  • L, U, and V are decoded to reconcile the three primary color signals
  • This type of color blindness is defined as full color blindness; when there are two poor performances in the three cones on the retina or received by the cerebral cortex There are two kinds of three primary color values, and the red, green or blue light in the patient's eye is defined as A R , A G , and A B color blind; when the three cones on the retina have a low or cerebral cortex The three primary color values received by the region have a low level, and the patient's red, green, or blue darkness in the eye is defined as B R , B G , and B B color blindness, respectively.
  • the other six types of color blindness can achieve the purpose of improving color vision by changing the ratio of the three primary colors of the incident human eye from the outside, so that the proportion of the three primary colors received by the cerebral cortex tends to be normal.
  • the correction principle of the present invention is as follows:
  • the other eye is wearing a lens that maintains a normal brightness, and the brightness signal is ⁇ ' and the color difference signal ⁇ 7 and , and
  • V K- ( b 7 ⁇ b- T ) (6)
  • the outer geniculate body is decoded according to (4), (2) (3), ie from
  • Figure 1 is a spectral curve of an A G6 color blind correcting lens of the present invention
  • Figure 2 is a spectral curve of an A RG5 color-blind corrective lens.
  • the number of brightness steps is detected by the upper and lower semicircles of the color vision detector. Firstly, the brightness of the lower semicircle is lowered. When the brightness of the lower semicircle is different from that of the upper semicircle, the brightness of the upper semicircle is lowered. When the red brightness of the upper semicircle is different from the lower semicircle, the red brightness of the lower semicircle is lowered, and so on, the brightness step can be measured. quantity. Perform the detection of the number of green and blue steps as described above. When the number of steps is the same as that of a normal person, it is verified that the corrected three primary colors are the same as normal people.
  • the cerebral cortex is defined as white after receiving.
  • the detection method is that the semicircle on the screen is a normal proportion of white, so that the patient uses the R+G+B ratio in the lower semicircle to be the same white as the upper semicircle.
  • the correction index is reached. Similarly, it can be done. Tone ratio detection.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Eye Examination Apparatus (AREA)

Description

色盲矫正眼镜及其制造方法
技术领域：
本发明属于色盲矫正技术领域， 尤其涉及的是一种色盲矫正 眼镜及其制造方法。
背景技术：
目前， 全世界大约有两亿多色盲患者， 这些人对颜色没有辨 认能力， 无法感受五彩缤纷的大千世界， 他们将终生被剥夺从事 美工、 印染、 化工、 交通、 地质、 医药和国防等工作的权利， 因 此， 色盲矫正眼镜应运而生。 ZL90110297.0的色盲矫正眼镜及色 盲. 矫正方法、 美国专利 5369453 的色盲矫正眼镜、 日本专利 2813743的色盲矫正眼镜等专利产品的透.光率均在 35%以下， 虽 然能使患者色盲中的三基色比例趋于正常， 明度却大幅度下降， 不仅无法达到正常色觉， 在光线不足时还影响视力。
ZL98201888.6专利产品是单眼配戴色盲矫正镜片，这必然造成色 相差， 影响视力和色盲矫正效果。
发明内容：
本发明所要解决的技术问题是提供一种能使色盲患者眼中的 基色、 色调、 饱和度和明度都趋于正常的色盲矫正眼镜及其制造 方法。
本发明的技术方案是这样实现的： 镜架的一边安装矫正三基 色比例趋于正常的镜片， 鏡架的另一边安装提高色觉明度趋于正 常的镜片， 矫正三基色比例趋于正常的镜片是依据色盲类别与梯 级， 选择含有相应矫正光 *曲线制作的， 提高色觉明度趋于正常 的矫正镜片是以 500-600nm透过率提高程度而定为不同梯级供矫 正时选定。
_ι一 本发明矫正三基色比例镜片的制作方法是： 先通过色觉检测 仪确定类型、 梯级和色盲矫正光谱曲线， 然后对基片染色， 按光 谱曲线进行膜系设计， 再把基片放在真空镀膜机中根据膜系设计 工序进行镀膜， 最后一层镀鉻； 提高色觉明度的镜片的制作方法 是： 先通过色觉检测仪使明度趋于正常而矫正后的三基色比例不 变， 进而确定镜片矫正光傅曲线， 然后选择与矫正三基色比例镜 片相同的基片染相同颜色， 按选定的光讲曲线进行膜系设计， 再 把基片放在真空镀膜机中根据膜系设计工序进行镀膜， 最后一层 镀铬， 把上述两种镜片不分左右装在镜框内即成色盲矫正眼镜。
本发明的优点是： 根据人类色盲矫正机理和人类双眼视觉的 取大、 融合、 整合的生理机能以及心理功能， 制作出使色盲患者 配戴后色觉的基色、 色调、饱和度和明度均趋于正常的色盲眼镜， 达到了真正矫正色盲的目的。
根据人体色觉理论， 外界光线入射人眼后， 在视网膜角质层被 分解为红（R )、 绿（G )、 蓝（B )三种基色并反射给面对的感红、 感绿、 感蓝三种视锥细胞， 分别产生光刺激值 R、 G、 B， 经视网 膜层次的矩阵变换， 调解出亮度信号 L和色差信号 II、 V， 且
Figure imgf000004_0001
U=Ku ( R-L )
V= v ( B-L )
其中 LR、 LG、 LB为亮度系数且 LR+LG+LB=1， U为红色差信 号， VR为蓝色差信号， Ku、 Κν为加权系数， 上述 L、 U、 V信号 分别由粗细不同的三种视神经纤维通过视交叉传递给外侧膝状体 相应细胞层， 在此， L、 U、 V被解码重新调解出三基色信号， 且
R=U/Ku+L
G=L- ( LR/LG ) ( U/ u ) - ( LG/LB ) ( V/Kv )
B=V/KV+L 上述 R、 G、 B由视辐射传递给大脑皮层 17区， 大脑皮层则 依据固有的彩色立体坐标系根据三基色向量和 + 的方向和 大小定义彩色产生色觉。无论人类色觉过程哪一个层次发生变异， 致使大脑皮层视区接收到的三基色值异常， 大脑皮层仍然按固有 的彩色定义产生色觉， 必然造成色觉异常， 俗称色盲； 当视网膜 上三种视锥细胞全部失去功能或大脑皮层无法收到三基色信号 时， 患者全无色感， 此类色盲定义为全色盲； 当视网膜上三种视 锥细胞中有两种性能低下或大脑皮层视区接收到的三基色值有两 种低下， 患者眼中的红色、 绿色或蓝色发亮分别定义为 AR类、 AG类、 AB类色盲； 当视网膜上三种视锥细胞有一种低下或大脑 皮层视区接收到的三基色值有一种低下， 患者， 眼中红色、 绿色 或蓝色发暗分别定义为 BR类、 BG类、 BB类色盲。 除全色盲外， 其它六类色盲只要从外部改变入射人眼的三基色比例， 使大脑皮 层接收到的三基色比例趋于正常， 就能达到改善色觉的目的。
本发明的矫正原理如下：
设正常色觉在视网膜上产生的三基色光刺激值为 R、 G、 B， 调解出的亮度 L、 色差 U、 V，在外侧膝状体重新调解出三基色信 号传递给大脑皮层视区， JLR = R,G = G,B = B , 大脑则产生色觉
F( ) = R + G + B = VR2 + G2 + B2， 若色盲患者的三基色刺激值为 r、 g、 b, 其产生的亮度为 1、 色差为 u、 V, 两只色盲矫正镜片光 谱曲线上的三基色透过率分别为 F、 g , 和 、 g7, b7 , 一只眼 配戴使三基色比例趋于正常的鏡片， 则产生出亮度信号 Ϊ和色差 信号 ΰ和 ， 且
i=Lrr · r + Lgf · g + Lbb · b ( 1 )
u =Ku ( r · r - Ϊ ) ( 2 )
v=Kv ( b · b - Ϊ ) ( 3 )
另一只眼配戴保持明度趋于正常的镜片， 则产生亮度信号为 ϊ'和色差信号 ΰ7和 ， 且
=Lr r' · r + Lg- ' · g + Lb b' · b (4)
i=Ku ( 7 · r - Ϊ ) (5)
V=K- ( b7 · b- T ) (6)
外侧膝状体则依据 （4) 、 （2) (3) 进行解码， 即从
I'=Lrr' · r + Lgg' - g + Lbb' * b
u= u ( r · r- Ϊ ) (2)
v=Kv ( b · b- Ϊ ) (3) B, (2) 、 (3) 变
Figure imgf000006_0001
形为
U = U(R-T) (2')
Ϋ = Κν(Β-ϊ) (3')
从 (4) (2') (3') 调
Figure imgf000006_0002
R = V/KV+1' (7)
G=V- (LRLG)(U/ U )― (Lb/Lg )(V/KV) (8)
= γ/κγ + ν (9)
当 T'→L时， 必有 R→R， G→G, B B , 即大脑视觉 ( ) = R + 0+ «^ ^^矫正色觉趋于正常。
附图说明：
图 1是本发明 AG6色盲矫正镜片的光谱曲线；
图 2是 ARG5色盲矫正镜片的光谱曲线。
具体实施方式：
实施例
因色盲有 6类各 6个梯级， 配制方法相同， 可以举一反三。 例如色盲患者通过色觉检测仪确定为 AG类 6梯级， 矫正步骤： 参照图 1和图 2, 图 1为 AG6色盲矫正镜片的光谱曲线， 图 2 是 ARG5色盲矫正镜片的光谱曲线， 制作时， 首先以选用的光学镜 片为基色片进行染色， 然后按 Ace光谱曲线进行膜系设计， 在真 空镀膜机上对凹面进行镀膜， 最后一层则镀铬， 防止反光照眼影 响视力， 并以同样工艺过程生产 ARG5镜片。挑选能使三基色比例 趋于正常的含有相应矫正光谱曲线的镜片 AG6装入镜框内， 再选 择增强明度的矫正镜片 ARG5装入另一镜框内，让患者配戴镜框两 边分别为 AG6和 ARG5矫正镜片进行双眼色盲矫正达标检测：
1、通过色觉检测仪荧屏上下半圆均为最亮的红色进行明度梯 级数量的检测。 首先降低下半圆亮度， 当下半圆与上半圆明度不 同时，再降低上半圆亮度， 当上半圆的红色亮度与下半圆不同时， 再降低下半圆的红色亮度， 依此类推， 可测出明度梯级的数量。 按照上述方法再做绿色、 蓝色梯级数量的检测。 当梯级数量与正 常人相同时， 验证了矫正后的三基色明度与正常人相同。
2、 通过色觉检测仪进行白平衡和色调的配比检测。
白平衡的充要条件是视网膜上产生的三基色刺激值相等， 即 R=G=B， 亮度达到最大值， 视网膜调解出的两个色差信号 U=0、 V=0, 外侧膝状体解码出的三基色为 R=L、 G=L、 B=L, 大脑皮 层接收后定义为白色， 当矫正后的 κ = ό = δ， 且亮度达到正常， 则视网膜调解出的两个色差信号 ϋ=ο、 ν=ο , 外侧膝状体解码 出的 ¾= =¾且 =!7、 G =T =V , 当 I7=L时， 矫正后患 者眼中的白色趋于正常白色。 检测方法是荧屏上半圆为正常配比 的白色， 让患者在下半圆用 R+G+B配比与上半圆相同的白色， 当白色相同、 配比相同时， 达到矫正指标， 同理， 可做色调配比 检测。
3、 最后让矫正患者再进行 24幅色觉检测图表的测试。 上述检测全部通过， 则依配镜处方组装成色盲矫正眼镜， 患 者配戴后色觉趋于正常色觉。

Claims

权 利 要 求
1、 一种色盲矫正眼镜， 其特征在于： 利用色盲矫正机理和人 类双眼视力取大、 竟争、 融合和整合的生理机制和心理功能， 在 鏡架的一边安装矫正三基色比例趋于正常的镜片， 镜架的另一边 安装提高色觉明度趋于正常的镜片， 制成色盲矫正眼镜。
2、 根据权利要求 1所迷的色盲矫正眼镜， 其特征在于: 矫正 三基色比例趋于正常的镜片是依据色盲类别与梯级， 选择含有相 应矫正光谱曲线制作的。
3、 根据权利要求 1所述的色盲矫正眼镜， 其特征在于： 提高 色觉明度趋于正常的矫正镜片是以 500-600nm透过率提高程度而 定为不同梯级供矫正时选定。
4、 权利要求 1所述的色盲矫正眼镜的制造方法，其特征在于： 三基色矫正镜片是先通过色觉检测仪确定类型、 梯级和色盲矫正 光谱曲线， 然后对基片染色， 按光谱曲线进行膜系设计， 再把基 片放在真空镀膜机中根据膜系设计工序进行镀膜，最后一层镀铬； 提高色觉明度的镜片同样是先通过色觉检测仪使明度趋于正常而 矫正后的三基色比例不变， 进而确定镜片矫正光谱曲线， 然后选 择与矫正三基色比例镜片相同的基片染相同颜色， 按光傅曲线进 行膜系设计， 再把基片放在真空镀膜机中根据膜系设计工序进行 镀膜， 最后一层镀铬， 把上述两种镜片不分左右装在镜框内即成 色盲矫正眼鏡。
PCT/CN2004/000756 2003-07-08 2004-07-06 Lunettes corrigeant le daltonisme WO2005003841A1 (fr)

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Application Number Priority Date Filing Date Title
EP04738354A EP1744201A4 (en) 2003-07-08 2004-07-06 GLASSES FOR CORRECTING COLOR BLINDNESS
US10/563,729 US20110090453A1 (en) 2003-07-08 2004-07-06 Spectacles for correcting color blindness

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CNA031276148A CN1567028A (zh) 2003-07-08 2003-07-08 色盲矫正眼镜及其制造方法
CN03127614.8 2003-07-08

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EP1744201A4 (en) 2007-08-08
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EP1744201A1 (en) 2007-01-17
CN1567028A (zh) 2005-01-19

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