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1. 发明授权

US07441896B2 Macular pigment measurements 失效
标题翻译：黄斑色素测量
公开(公告)号：US07441896B2
公开(公告)日：2008-10-28
申请号：US10837720
申请日：2004-05-03
申请人： Richard Andrew Bone , John Thomas Landrum
发明人： Richard Andrew Bone , John Thomas Landrum
IPC分类号： A61B3/10
CPC分类号： A61B3/14
摘要： Apparatus for use in measuring the density and spatial distribution of macular pigment in an eye comprises a camera (4) for capturing a color image of an eye, at least one filter (36) for filtering light reaching the camera (preferably by filtering the light illuminating the eye). The filter (36) has a transmission spectrum with one peak in the region of light absorbed by the pigment and another peak in a region where no such absorption occurs. The filter increases the sensitivity of the camera to macular pigment while enabling the effect of other pigments to be reduced or eliminated. A method of measuring macular pigment involves obtaining a color image of an eye, the image having two color components each having a spectrum having a respective one of said peaks. Corresponding portions of the components are mathematically combined so as to provide a measurement of macular pigment density and the results of the combination are used to provide an output representative of the contribution of macular pigment to the image.
摘要翻译：用于测量眼睛中黄斑色素的密度和空间分布的装置包括用于捕获眼睛彩色图像的照相机（4），用于过滤到达照相机的光的至少一个滤光器（36）（优选地通过过滤光照亮眼睛）。滤光器（36）具有在由颜料吸收的光的区域中具有一个峰的透射光谱，并且在不发生这种吸收的区域中具有另一个峰。过滤器增加了相机对黄斑色素的敏感性，同时能够降低或消除其他颜料的影响。一种测量黄斑色素的方法包括获得眼睛的彩色图像，该图像具有两个颜色分量，每个颜色分量具有具有相应一个峰的光谱。组分的相应部分在数学上组合以提供黄斑颜料密度的测量，并且组合的结果用于提供代表黄斑色素对图像的贡献的输出。

2. 发明申请

US20090002629A1 RETINAL CAMERA FILTER FOR MACULAR PIGMENT MEASUREMENTS 审中-公开
标题翻译：离子相机过滤器用于微粒颜料测量
公开(公告)号：US20090002629A1
公开(公告)日：2009-01-01
申请号：US12204468
申请日：2008-09-04
申请人： Richard Andrew Bone , John Thomas Landrum
发明人： Richard Andrew Bone , John Thomas Landrum
IPC分类号： A61B3/14
CPC分类号： A61B3/14
摘要： Apparatus for use in measuring the density and spatial distribution of macular pigment in an eye comprises a camera (4) for capturing a colour image of an eye, at least one filter (36) for filtering light reaching the camera (preferably by filtering the light illuminating the eye). The filter (36) has a transmission spectrum with one peak in the region of light absorbed by the pigment and another peak in a region where no such absorption occurs. The filter increases the sensitivity of the camera to macular pigment whilst enabling the effect of other pigments to be reduced or eliminated. A method of measuring macular pigment involves obtaining a colour image of an eye, the image having two colour components each having a spectrum having a respective one of said peaks. Corresponding portions of the components are mathematically combined so as to provide a measurement of macular pigment density and the results of the combination are used to provide an output representative of the contribution of macular pigment to the image.
摘要翻译：用于测量眼睛中黄斑色素的密度和空间分布的装置包括用于捕获眼睛彩色图像的照相机（4），用于过滤到达照相机的光的至少一个滤光器（36）（优选地通过过滤光照亮眼睛）。滤光器（36）具有在由颜料吸收的光的区域中具有一个峰的透射光谱，并且在不发生这种吸收的区域中具有另一个峰。该过滤器增加了相机对黄斑色素的敏感性，同时能够降低或消除其他颜料的影响。一种测量黄斑色素的方法包括获得眼睛的彩色图像，该图像具有两个颜色分量，每个颜色分量具有具有相应一个峰的光谱。组分的相应部分被数学地组合以提供黄斑色素密度的测量，并且组合的结果用于提供代表黄斑色素对图像的贡献的输出。

3. 发明授权

US6017122A Flicker photometer 失效
标题翻译：闪烁光度计
公开(公告)号：US6017122A
公开(公告)日：2000-01-25
申请号：US38413
申请日：1998-03-11
申请人： Richard Andrew Bone , John Thomas Landrum , Wenlue Huang , Carlos Manuel Orta
发明人： Richard Andrew Bone , John Thomas Landrum , Wenlue Huang , Carlos Manuel Orta
IPC分类号： A61B3/02 , A61B3/06 , G01J3/08 , A61B3/10
CPC分类号： A61B3/02
摘要： A flicker photometer comprises generating means (1, 8, 4) for generating two beams of light of different colors. Both beams are directed to a viewing means (190), and a subject can vary the intensity of light from one beam relative to the other. The color of the light seen by the subject is caused to alternate by a shutter (18) which is rotated about an axis by a motor, the shutter having a portion which extends non-perpendicularly relative to the axis to facilitate a compact construction of photometer. The performance of the photometer is improved by screens which scatter light before it reaches the subject. A first of the screens reflects light from one beam, whilst a second screen transmits light from the other. If light of wavelengths to which the eye is less sensitive is passed through the second screen, whilst light of a wavelength to which the eye is more sensitive passes through the first screen, the screens help to make it practicable for the generating means to use a single lamp (1) to produce the light for both beams.
摘要翻译：闪烁光度计包括用于产生不同颜色的两束光的发生装置（1,8,4）。两个光束被引导到观察装置（190），并且被摄体可以改变来自一个光束相对于另一个光束的光的强度。由受试者所看到的光的颜色由通过马达围绕轴线旋转的快门（18）交替引导，闸板具有相对于轴线非垂直延伸的部分，以便于光度计的紧凑结构。通过在光到达被摄体之前散射光的屏幕改善了光度计的性能。屏幕中的第一个屏幕反射来自一个光束的光，而第二个屏幕则透射来自另一个光束的光。如果眼睛较不敏感的波长的光通过第二屏幕，而眼睛更敏感的波长的光通过第一屏幕，屏幕有助于使生成装置使用单灯（1）产生两束光。

4. 发明授权

US5936724A Flicker photometer 失效
标题翻译：闪烁光度计
公开(公告)号：US5936724A
公开(公告)日：1999-08-10
申请号：US38420
申请日：1998-03-11
申请人： Richard Andrew Bone , John Thomas Landrum , Wenlue Huang , Carlos Manuel Orta
发明人： Richard Andrew Bone , John Thomas Landrum , Wenlue Huang , Carlos Manuel Orta
IPC分类号： A61B3/06 , G01J1/22 , G01J1/34 , G01J1/00 , G01J1/36 , G01J1/60
CPC分类号： A61B3/063 , G01J1/22 , G01J1/34
摘要： A flicker photometer has beam generating means (1, 8 and 4) for generating two beams of light of different colors. Light from the beams is viewed at the viewing means, and the intensity of light of one beam relative to that of the other beam can be adjusted by adjustment means comprising an attenuating filter (20) which is movably mounted in the path of one beam. Movement of the filter relative to the beam alters the degree to which the beam is attenuated, and is achieved using an electric motor (22). The motor provides a relatively easy means of adjusting the filter position, and can be used to provide coarse and fine adjustments in response to suitable signals from an optical encoder. The motor also enables the filter, along with the beam generating means, to be mounted on a movable table for use in enabling the photometer to accommodate both short and long-sighted subjects.
摘要翻译：闪烁光度计具有用于产生不同颜色的两束光的光束产生装置（1,8和4）。在观察装置处观察来自光束的光，并且可以通过包括可移动地安装在一个光束的路径中的衰减滤光器（20）的调节装置来调节一个光束相对于另一个光束的光的强度。滤波器相对于光束的运动改变了光束被衰减的程度，并且使用电动机（22）来实现。电动机提供了相对简单的调节过滤器位置的装置，并且可以用于响应于来自光学编码器的适当信号而提供粗略和微调。电动机还使得过滤器与梁产生装置一起安装在可移动工作台上，以用于使光度计能够容纳短视和远视物体。

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