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公开(公告)号:US20090096989A1
公开(公告)日:2009-04-16
申请号:US11912263
申请日:2007-02-14
IPC分类号: A61B3/12
CPC分类号: A61B3/132 , A61B3/0008
摘要: A binocular indirect opthalmoscope has a light source for producing an illumination beam and an illumination mirror (7) for directing the illumination beam to an eye to be viewed. The opthalmoscope also has, viewing optics including left-hand and right-hand eyepieces (12,13) and an optical splitter (9,10) for directing light along left-hand and right-hand viewing paths to the two eyepieces. An aperture holder (20) is pivotally mounted in a frame (3,5,6) of the opthalmoscope and adjusts the size of the illumination beam, under the control of a manually rotatable control knob (24). The movement of the aperture holder is transmitted, by means of mechanical linkage, to a moveable carriage (15) on which is mounted both the optical splitter and the illumination mirror, so that when the user moves the control knob to adjust the size of the illumination beam the optical splitter and the illumination mirror are also adjusted in position with respect to the opthalmoscope frame.
摘要翻译: 双目间接眼镜具有用于产生照明光束的光源和用于将照明光束引导到眼睛以观看的照明镜(7)。 眼镜还具有观察光学元件,包括左眼和右眼目镜(12,13)和用于将光线沿着左眼和右眼观察路径引导到两个目镜的光分路器(9,10)。 光圈保持器(20)可枢转地安装在眼镜的框架(3,5,6)中,并且在手动旋转的控制旋钮(24)的控制下调节照明光束的尺寸。 孔保持器的运动通过机械连杆传递到安装有分光器和照明反射镜的可移动滑架(15),使得当用户移动控制旋钮以调整尺寸 光分路器和照明反射镜的照明光束也相对于眼镜框架调整到适当的位置。
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公开(公告)号:US08132915B2
公开(公告)日:2012-03-13
申请号:US11912263
申请日:2007-02-14
IPC分类号: A61B3/10
CPC分类号: A61B3/132 , A61B3/0008
摘要: A binocular indirect opthalmoscope has a light source for producing an illumination beam and an illumination mirror (7) for directing the illumination beam to an eye to be viewed. The opthalmoscope also has, viewing optics including left-hand and right-hand eyepieces (12,13) and an optical splitter (9,10) for directing light along left-hand and right-hand viewing paths to the two eyepieces. An aperture holder (20) is pivotally mounted in a frame (3,5,6) of the opthalmoscope and adjusts the size of the illumination beam, under the control of a manually rotatable control knob (24). The movement of the aperture holder is transmitted, by means of mechanical linkage, to a moveable carriage (15) on which is mounted both the optical splitter and the illumination mirror, so that when the user moves the control knob to adjust the size of the illumination beam the optical splitter and the illumination mirror are also adjusted in position with respect to the opthalmoscope frame.
摘要翻译: 双目间接眼镜具有用于产生照明光束的光源和用于将照明光束引导到眼睛以观看的照明镜(7)。 眼镜还具有观察光学元件,包括左眼和右眼目镜(12,13)和用于将光线沿着左眼和右眼观察路径引导到两个目镜的光分路器(9,10)。 光圈保持器(20)可枢转地安装在眼镜的框架(3,5,6)中,并且在手动旋转的控制旋钮(24)的控制下调节照明光束的尺寸。 孔保持器的运动通过机械连杆传递到安装有分光器和照明反射镜两者的可移动滑架(15),使得当用户移动控制旋钮以调整尺寸 光分路器和照明反射镜的照明光束也相对于眼镜框架调整到适当的位置。
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公开(公告)号:US07252381B2
公开(公告)日:2007-08-07
申请号:US10540297
申请日:2004-08-25
申请人: Clive Harrold Thomas Burrows , Kelvyn Church , Stephen Church , David Ernest Lane Freeman , James Robert Arnold Matthews
发明人: Clive Harrold Thomas Burrows , Kelvyn Church , Stephen Church , David Ernest Lane Freeman , James Robert Arnold Matthews
IPC分类号: A61B3/14
CPC分类号: A61B3/156
摘要: An ophthalmoscope has illuminating optics (10) for projecting a beam of light into an eye under examination and imaging optics (14) for creating an image of said eye for viewing by a user. The imaging optics comprises an objective lens system (16) and an eye piece lens system (20). Two corneal reflex stops (138 and 148) are positioned one on either side of the corneal image formed by the objective lens system. The stops block reflections from the cornea of the eye under examination over a range of distances of the ophthalmoscope from the eye. The use of the two corneal reflex stops results in the precise positioning of the ophthalmoscope relative to the eye under examination not being critical to the blocking of the corneal reflex.
摘要翻译: 检眼镜具有用于将光束投射到被检查的眼睛中的照明光学器件(10)和用于创建用于用户观看的所述眼睛的图像的成像光学器件(14)。 成像光学元件包括物镜系统(16)和眼镜透镜系统(20)。 两个角膜反射停止(138和148)位于由物镜系统形成的角膜图像的任一侧上。 止血块阻止了眼睛从眼睛的距离范围内的眼睛的角膜的反射。 使用两个角膜反射停止导致检眼镜相对于检查眼睛的精确定位不对阻塞角膜反射至关重要。
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公开(公告)号:US20060077345A1
公开(公告)日:2006-04-13
申请号:US10540297
申请日:2004-08-25
CPC分类号: A61B3/156
摘要: An ophthalmoscope has illuminating optics (10) for projecting a beam of light into an eye under examination and imaging optics (14) for creating an image of said eye for viewing by a user. The imaging optics comprises an objective lens system (16) and an eye piece lens system (20). Two corneal reflex stops (138 and 148) are positioned one on either side of the corneal image formed by the objective lens system. The stops block reflections from the cornea of the eye under examination over a range of distances of the ophthalmoscope from the eye. The use of the two corneal reflex stops results in the precise positioning of the ophthalmoscope relative to the eye under examination not being critical to the blocking of the corneal reflex.
摘要翻译: 检眼镜具有用于将光束投射到被检查的眼睛中的照明光学器件(10)和用于创建用于用户观看的所述眼睛的图像的成像光学器件(14)。 成像光学元件包括物镜系统(16)和眼镜透镜系统(20)。 两个角膜反射停止(138和148)位于由物镜系统形成的角膜图像的任一侧上。 止血块阻止了眼睛从眼睛的距离范围内的眼睛的角膜的反射。 使用两个角膜反射停止导致检眼镜相对于检查眼睛的精确定位不对阻塞角膜反射至关重要。
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公开(公告)号:US06250761B1
公开(公告)日:2001-06-26
申请号:US09649395
申请日:2000-08-28
IPC分类号: A61B310
CPC分类号: A61B3/1208
摘要: A spot retinoscope is used to assess a refractive error of an eye, and has viewing means (11, 12) for viewing the eye under examination, and projection means (6, 9) for directing a beam of light from a light source (5; 82) into said eye thereby to project a spot of light onto the latter. The divergence and convergence of the beam can be altered by focusing means (6, 48) movable from a normal position in which the beam is divergent, or converges to a point (in use) behind the eye under examination, to a cross-checking position, in which the beam is convergent on a point which, in use, is sufficiently far in front of the eye under examination to enable the user to detect movement of the patch of light projected onto the retina of said eye where any refractive error in the eye has not been corrected by a lens placed between the eye and the retinoscope. The retinoscope may also be used (with a further light source) as a streak retinoscope.
摘要翻译: 使用斑点视网膜检查器来评估眼睛的屈光不正,并且具有用于观察检查眼睛的观察装置(11,12)和用于引导来自光源(5)的光束的投影装置(6,9) ; 82)进入所述眼睛,从而将光点投射到后者上。 光束的发散和会聚可以通过可从光束发散的正常位置移动的聚焦装置(6,48)改变,或者会聚到检查眼睛后面的一个点(使用中)到交叉检查 位置,其中光束会聚在使用中在被检查的眼睛前方足够远的点,以使得用户能够检测到投射到所述眼睛的视网膜上的光斑的移动,其中任何屈光不正 眼睛没有被放置在眼睛和视网膜镜之间的镜片校正。 也可以使用视网膜显微镜(带另外的光源)作为条纹视网膜。
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