公开(公告)号：US07320519B2

公开(公告)日：2008-01-22

申请号：US11680951

申请日：2007-03-01

申请人： Tomoyuki Iwanaga ,  Hiroshi Itoh ,  Shinya Tanaka

发明人： Tomoyuki Iwanaga ,  Hiroshi Itoh ,  Shinya Tanaka

IPC分类号： A61B3/10

CPC分类号： A61B3/12 ,  A61B3/0091 ,  A61B3/14

摘要： An ophthalmic apparatus allows a fixation-target projecting unit for fundus observation to project a fixation target for fundus observation onto a position not coinciding with a center of a light path of an observation optical system but corresponding to a position to which a fixation target for anterior-ocular-observation is projected. Thus, it is not necessary for an operator to perform positioning and fixation guiding operations again, thereby contributing to a shorter imaging time and less complexity and trouble in the overall operation.

摘要翻译： 眼科装置允许用于眼底观察的定影目标投影单元将用于眼底观察的固定目标投影到与观察光学系统的光路中心不重合的位置，但对应于前方的固定目标的位置 预测眼睛观察。 因此，操作者不需要再次执行定位和定影引导操作，从而有助于缩短成像时间，并且在整体操作中有较少的复杂性和麻烦。

公开(公告)号：US20070242222A1

公开(公告)日：2007-10-18

申请号：US11680951

申请日：2007-03-01

申请人： Tomoyuki Iwanaga ,  Hiroshi Itoh ,  Shinya Tanaka

发明人： Tomoyuki Iwanaga ,  Hiroshi Itoh ,  Shinya Tanaka

IPC分类号： A61B3/12

CPC分类号： A61B3/12 ,  A61B3/0091 ,  A61B3/14

摘要： An ophthalmic apparatus allows a fixation-target projecting unit for fundus observation to project a fixation target for fundus observation onto a position not coinciding with a center of a light path of an observation optical system but corresponding to a position to which a fixation target for anterior-ocular-observation is projected. Thus, it is not necessary for an operator to perform positioning and fixation guiding operations again, thereby contributing to a shorter imaging time and less complexity and trouble in the overall operation.

摘要翻译： 眼科装置允许用于眼底观察的定影目标投影单元将用于眼底观察的固定目标投影到与观察光学系统的光路中心不重合的位置，但对应于前方的固定目标的位置 预测眼睛观察。 因此，操作者不需要再次执行定位和定影引导操作，从而有助于缩短成像时间，并且在整体操作中有较少的复杂性和麻烦。

公开(公告)号：US20080123050A1

公开(公告)日：2008-05-29

申请号：US11945793

申请日：2007-11-27

申请人： Shinya Tanaka ,  Tomoyuki Iwanaga ,  Hiroshi Itoh

发明人： Shinya Tanaka ,  Tomoyuki Iwanaga ,  Hiroshi Itoh

IPC分类号： A61B3/14 ,  A61B3/12

CPC分类号： A61B3/14

摘要： A focusing unit can be inserted into and removed from an illumination light path by rotating around a supporting portion. An index light source, a green LED, is attached to the bottom of a base. A transparent acrylic-resin disk is fixed to the base. A deflection prism is attached to the bottom of the disk. A beam from the light source enters the deflection prism. A focus index forming portion is provided on the top of the disk. In the center of a light-shielding portion is formed a slit-like opening, under which split prisms are provided. Deflected by the prisms, the beam from the light source is split into two, right-half and left-half, directional beams, and combined with an illumination optical system, in the form of two slit images, at the opening.

摘要翻译： 可以通过围绕支撑部分旋转而将聚焦单元插入照明光路中并从照明光路中移除。 索引光源（绿色LED）连接到底座的底部。 透明的丙烯酸树脂盘固定在基座上。 偏转棱镜连接到盘的底部。 来自光源的光束进入偏转棱镜。 焦点指标形成部分设置在盘的顶部。 在遮光部分的中心形成狭缝状的开口，在该开口处设有分割的棱镜。 由棱镜偏转，来自光源的光束被分成两个，右半部分和左半部分的定向光束，并且在开口处与两个狭缝图像的形式的照明光学系统组合。

公开(公告)号：US07736001B2

公开(公告)日：2010-06-15

申请号：US11945793

申请日：2007-11-27

申请人： Shinya Tanaka ,  Tomoyuki Iwanaga ,  Hiroshi Itoh

发明人： Shinya Tanaka ,  Tomoyuki Iwanaga ,  Hiroshi Itoh

IPC分类号： A61B3/10 ,  A61B3/14

CPC分类号： A61B3/14

摘要： A focusing unit can be inserted into and removed from an illumination light path by rotating around a supporting portion. An index light source, a green LED, is attached to the bottom of a base. A transparent acrylic-resin disk is fixed to the base. A deflection prism is attached to the bottom of the disk. A beam from the light source enters the deflection prism. A focus index forming portion is provided on the top of the disk. In the center of a light-shielding portion is formed a slit-like opening, under which split prisms are provided. Deflected by the prisms, the beam from the light source is split into two, right-half and left-half, directional beams, and combined with an illumination optical system, in the form of two slit images, at the opening.

摘要翻译： 可以通过围绕支撑部分旋转而将聚焦单元插入照明光路中并从照明光路中移除。 索引光源（绿色LED）连接到底座的底部。 透明的丙烯酸树脂盘固定在基座上。 偏转棱镜连接到盘的底部。 来自光源的光束进入偏转棱镜。 焦点指标形成部分设置在盘的顶部。 在遮光部分的中心形成狭缝状的开口，在该开口处设有分割的棱镜。 由棱镜偏转，来自光源的光束被分成两个，右半部分和左半部分的定向光束，并且在开口处与两个狭缝图像的形式的照明光学系统组合。

公开(公告)号：US5894337A

公开(公告)日：1999-04-13

申请号：US921356

申请日：1997-08-29

申请人： Satoru Okinishi ,  Shinya Tanaka ,  Yasuyuki Numajiri ,  Toshiaki Okumura ,  Shigeaki Ono ,  Hiroshi Itoh ,  Tomoyuki Iwanaga

发明人： Satoru Okinishi ,  Shinya Tanaka ,  Yasuyuki Numajiri ,  Toshiaki Okumura ,  Shigeaki Ono ,  Hiroshi Itoh ,  Tomoyuki Iwanaga

IPC分类号： A61B3/10 ,  A61B3/12 ,  A61B3/14 ,  A61B5/0285 ,  A61B3/00

CPC分类号： A61B3/1241

摘要： A eye fundus examining apparatus includes a first optical system for projecting measurement light onto the fundus of an eye, a deflecting member provided in the first optical system for deflecting the measurement light, a light receiving element for receiving the reflected light of the measurement light from the fundus of the eye, a predetermined parameter of a target on the fundus of the eye being measured from the light reception information of the light receiving element, a second optical system for projecting a tracking light beam to an area including the target on the fundus of the eye, an image pickup element for receiving the image of the target illuminated by the tracking light beam, and a control system for driving the deflecting member and directing the measurement light onto the target so that the distance of deviation from the illuminated point by the measurement light under an ideal condition on the fundus of the eye to the target image received on the image pickup element may become a set value, the set value being suitably resettable.

摘要翻译： 眼底检查装置包括用于将测量光投射到眼底的第一光学系统，设置在第一光学系统中用于偏转测量光的偏转构件，用于接收测量光的反射光的光接收元件 眼睛的眼底，根据光接收元件的光接收信息测量眼睛的眼底上的目标的预定参数，用于将跟踪光束投射到眼底的包括目标的区域的第二光学系统 用于接收由跟踪光束照射的目标的图像的图像拾取元件，以及用于驱动偏转构件并将测量光引导到目标上的控制系统，使得偏离照明点的距离由 在眼睛的眼底上的理想条件下的测量光到在图像拾取元件上接收的目标图像 可能成为设定值，设定值可以适当地重置。

公开(公告)号：US08070291B2

公开(公告)日：2011-12-06

申请号：US13035877

申请日：2011-02-25

申请人： Tomoyuki Iwanaga ,  Manabu Wada ,  Shinya Tanaka

发明人： Tomoyuki Iwanaga ,  Manabu Wada ,  Shinya Tanaka

IPC分类号： A61B3/14

CPC分类号： A61B3/12 ,  A61B3/14

摘要： A fundus camera includes an illumination unit which includes an optical element configured to irradiate an eye fundus with visible light from a position conjugate with an anterior eye portion of an eye to be examined, and an imaging unit configured to take an image of the eye fundus with light which is emitted from the illumination unit and reflected from the eye fundus, wherein the illumination unit includes a blue LED chip and a fluorescent member that is excited by light emitted from the blue LED chip and emits fluorescence, and the fluorescent member is irradiated again with a part of the light reflected by the optical element.

摘要翻译： 眼底照相机包括照明单元，该照明单元包括被配置为从与要检查的眼睛的前眼部分共轭的位置照射眼底的光学元件和被配置为拍摄眼底图像的成像单元 具有从照明单元发射并从眼底反射的光，其中照明单元包括由蓝色LED芯片发出的光激发的蓝色LED芯片和荧光部件，并发出荧光，荧光部件被照射 再一次由光学元件反射的一部分光。

公开(公告)号：US07918557B2

公开(公告)日：2011-04-05

申请号：US12619446

申请日：2009-11-16

申请人： Tomoyuki Iwanaga ,  Manabu Wada ,  Shinya Tanaka

发明人： Tomoyuki Iwanaga ,  Manabu Wada ,  Shinya Tanaka

IPC分类号： A61B3/14

CPC分类号： A61B3/12 ,  A61B3/14

摘要： A fundus camera includes an illumination unit which includes an optical element configured to irradiate an eye fundus with visible light from a position conjugate with an anterior eye portion of an eye to be examined, and an imaging unit configured to take an image of the eye fundus with light which is emitted from the illumination unit and reflected from the eye fundus, wherein the illumination unit includes a blue LED chip and a fluorescent member that is excited by light emitted from the blue LED chip and emits fluorescence, and the fluorescent member is irradiated again with apart of the light reflected by the optical element.

摘要翻译： 眼底照相机包括照明单元，该照明单元包括被配置为从与要检查的眼睛的前眼部分共轭的位置照射眼底的光学元件和被配置为拍摄眼底图像的成像单元 具有从照明单元发射并从眼底反射的光，其中照明单元包括由蓝色LED芯片发出的光激发的蓝色LED芯片和荧光部件，并发出荧光，荧光部件被照射 再次由光学元件反射的光分开。

公开(公告)号：US20100123871A1

公开(公告)日：2010-05-20

申请号：US12619446

申请日：2009-11-16

申请人： Tomoyuki Iwanaga ,  Manabu Wada ,  Shinya Tanaka

发明人： Tomoyuki Iwanaga ,  Manabu Wada ,  Shinya Tanaka

IPC分类号： A61B3/14

CPC分类号： A61B3/12 ,  A61B3/14

摘要： A fundus camera includes an illumination unit which includes an optical element configured to irradiate an eye fundus with visible light from a position conjugate with an anterior eye portion of an eye to be examined, and an imaging unit configured to take an image of the eye fundus with light which is emitted from the illumination unit and reflected from the eye fundus, wherein the illumination unit includes a blue LED chip and a fluorescent member that is excited by light emitted from the blue LED chip and emits fluorescence, and the fluorescent member is irradiated again with apart of the light reflected by the optical element.

摘要翻译： 眼底照相机包括照明单元，该照明单元包括被配置为从与要检查的眼睛的前眼部分共轭的位置照射眼底的光学元件和被配置为拍摄眼底图像的成像单元 具有从照明单元发射并从眼底反射的光，其中照明单元包括由蓝色LED芯片发出的光激发的蓝色LED芯片和荧光部件，并发出荧光，荧光部件被照射 再次由光学元件反射的光分开。

公开(公告)号：US20090279051A1

公开(公告)日：2009-11-12

申请号：US12432626

申请日：2009-04-29

申请人： Nobuyoshi Kishida ,  Tomoyuki Iwanaga ,  Hideyuki Ohban ,  Shinya Tanaka

发明人： Nobuyoshi Kishida ,  Tomoyuki Iwanaga ,  Hideyuki Ohban ,  Shinya Tanaka

IPC分类号： A61B3/14 ,  A61B3/12

CPC分类号： A61B3/14

摘要： A fundus camera includes a fundus photographing optical system including an image-recording image sensor for photographing a fundus image via a focusing lens, a focus target having a plurality of regions for forming light fluxes passing through a plurality of different areas on pupil of a subject's eye, and a focus drive unit for driving the focusing lens based on positions of a plurality of images of the focus target in an image captured by the image-recording image sensor and on contrast of the images.

摘要翻译： 眼底照相机包括眼底拍摄光学系统，其包括用于通过聚焦透镜拍摄眼底图像的图像记录图像传感器，聚焦目标具有多个区域，用于形成通过被检体的瞳孔上的多个不同区域的光通量 眼睛和聚焦驱动单元，用于基于由图像记录图像传感器捕获的图像中的焦点对象的多个图像的位置以及图像的对比度来驱动聚焦透镜。

公开(公告)号：US20120154748A1

公开(公告)日：2012-06-21

申请号：US13393001

申请日：2010-08-30

申请人： Hiroyuki Inoue ,  Tomoyuki Iwanaga ,  Shinya Tanaka

发明人： Hiroyuki Inoue ,  Tomoyuki Iwanaga ,  Shinya Tanaka

IPC分类号： A61B3/14

CPC分类号： A61B3/14 ,  A61B3/12 ,  G02B7/365

摘要： If a position of a focus lens is greatly displaced from a focus state when automatic focusing is started, and pattern recognition cannot be performed, the process proceeds to step S3. In step S3, the lens is sequentially driven until pattern recognition can be performed. If it is determined that the pattern recognition can be performed in step S2, a focus detection range is determined in S4. In step S5, an AF evaluation value of the range is calculated, and the value is stored in step S6.

摘要翻译： 如果当自动对焦开始时聚焦透镜的位置大大偏离聚焦状态，并且不能执行图案识别，则处理进行到步骤S3。 在步骤S3中，依次驱动镜头，直到可以执行图案识别。 如果在步骤S2中确定可以执行模式识别，则在S4中确定焦点检测范围。 在步骤S5中，计算该范围的AF评价值，并且在步骤S6中存储该值。