公开(公告)号：US4293199A

公开(公告)日：1981-10-06

申请号：US960056

申请日：1978-11-13

申请人： Shinzi Wada ,  Ikuo Kitao ,  Yoshinori Oana ,  Yasuo Kato ,  Taketoshi Ishihara

发明人： Shinzi Wada ,  Ikuo Kitao ,  Yoshinori Oana ,  Yasuo Kato ,  Taketoshi Ishihara

IPC分类号： A61B3/10 ,  A61B3/103 ,  G01M11/02

CPC分类号： G01M11/0264 ,  A61B3/1035 ,  G01M11/0228

摘要： An apparatus for detecting astigmatic axes and measuring refractive powers such as the lens of a human eye. A disc has a first group of slits oriented in one direction and a second group of slits oriented perpendicular thereto. Each slit has a deflecting means with a direction of deflection perpendicular to the lengthwise direction of its slits for measuring the refractive power. The apparatus also has astigmatic axis detecting target means which can be used immediately prior to the refraction so that the refraction on each astigmatic axis can be measured before conditions change in the eye.

摘要翻译： 用于检测散光轴并测量折射力的装置，例如人眼的透镜。 盘具有沿一个方向定向的第一组狭缝和与其垂直定向的第二组狭缝。 每个狭缝具有偏转方向，其偏转方向垂直于其狭缝的长度方向，用于测量折射力。 该装置还具有散光轴检测目标装置，其可以在折射之前立即使用，使得可以在眼睛中的条件改变之前测量每个散光轴上的折射。

公开(公告)号：US4277150A

公开(公告)日：1981-07-07

申请号：US935608

申请日：1978-08-21

申请人： Shinzi Wada ,  Ikuo Kitao ,  Yasuo Kato ,  Taketoshi Ishihara

发明人： Shinzi Wada ,  Ikuo Kitao ,  Yasuo Kato ,  Taketoshi Ishihara

IPC分类号： A61B3/103 ,  G03B29/00 ,  A61B3/10 ,  A61B3/14

CPC分类号： A61B3/103

摘要： An eye refractmeter comprising a target projecting optical system for projecting an image of a target means through a pupil of a patient's eye to produce a target image on a retina of the eye, an observing optical system including objective lens means for observing the target image through the pupil, and a sighting optical system for observing light reflected at the cornea of the eye to determine that the objective lens means is appropriately spaced from the patient's eye, means being provided in the projecting optical system so that the image of the target means is projected by an infrared ray, half-transparent optical means for passing therethrough one of the light bundles along the observing and sighting optical systems and reflecting the other of the bundles, means for directing both of the light bundles passing through the observing and sighting optical systems to a single image pick-up tube, the half-transparent optical means having a reflecting rate such that more than 50% of the light along the observing optical system and less than 50% of the light along the sighting optical system are directed to the image pick-up tube.

摘要翻译： 一种眼睛折射仪，包括：目标投影光学系统，用于通过患者眼睛的瞳孔投影目标装置的图像，以在眼睛的视网膜上产生目标图像;观察光学系统，包括用于观察目标图像的物镜装置 瞳孔和用于观察在眼睛的角膜反射的光的瞄准光学系统，以确定物镜装置与患者眼睛适当地间隔开，装置设置在投影光学系统中，使得目标装置的图像为 通过红外线投影的半透明光学装置，用于沿着观察和瞄准光学系统通过其中的一个光束并反射束中的另一个;用于引导通过观察和瞄准光学系统的两束光束的装置 对于单个图像拾取管，半透明光学装置具有使得大于50％的反射率 沿着观察光学系统的光，并且沿着瞄准光学系统的小于50％的光被引导到图像拾取管。

公开(公告)号：US4306778A

公开(公告)日：1981-12-22

申请号：US92978

申请日：1979-11-09

申请人： Shinji Wada ,  Ikuo Kitao ,  Yasuo Kato ,  Taketoshi Ishihara ,  Yuji Sugahara

发明人： Shinji Wada ,  Ikuo Kitao ,  Yasuo Kato ,  Taketoshi Ishihara ,  Yuji Sugahara

IPC分类号： A61B3/10 ,  A61B3/103

CPC分类号： A61B3/103

摘要： Eye refractmeter using infrared rays in which the target projecting optical system includes an aperture disc having a semicircular apertures disposed within a circle corresponding to the pupil of the patient's eye with chord portions thereof opposed to each other with a spacing therebetween. The observing optical system includes a disc having a slot located at a position corresponding to the space between the apertures. The apertures and the slots are located in conjugate with the patient's pupil with respect to the objective lens.

摘要翻译： 使用红外线的眼睛折射仪，其中目标投影光学系统包括孔径盘，其具有设置在与患者眼睛的瞳孔相对应的圆圈内的半圆形孔，其中弦部分彼此相对地间隔开。 观察光学系统包括具有位于与孔之间的空间相对应的位置处的狭槽的盘。 孔和槽相对于物镜位于与患者瞳孔共轭处。

公开(公告)号：US4408847A

公开(公告)日：1983-10-11

申请号：US204229

申请日：1980-11-05

申请人： Shinji Wada ,  Yoshinori Oana ,  Ikuo Kitao ,  Yasuo Kato ,  Taketoshi Ishihara

发明人： Shinji Wada ,  Yoshinori Oana ,  Ikuo Kitao ,  Yasuo Kato ,  Taketoshi Ishihara

IPC分类号： A61B3/10 ,  A61B3/103 ,  G01M11/02

CPC分类号： G01M11/0264 ,  A61B3/103 ,  G01M11/0228

摘要： A refractory power measuring device for measuring the refractory power of the human eye or a lens. The device includes a target projecting optical system having two optical elements which are movable along the optical axis of the system independently from each other. The device can measure simultaneously the refractory powers along two astigmatic axes.

摘要翻译： 一种用于测量人眼或镜片耐火能力的难熔电力测量装置。 该装置包括具有两个光学元件的目标投影光学系统，它们可以彼此独立地沿着该系统的光轴移动。 该装置可以同时测量沿两个散光轴的耐火能量。

公开(公告)号：US4917480A

公开(公告)日：1990-04-17

申请号：US277439

申请日：1988-11-28

申请人： Yasuo Kato ,  Kiwami Horiguchi ,  Ikuo Kitao ,  Yoshihiro Takahashi

发明人： Yasuo Kato ,  Kiwami Horiguchi ,  Ikuo Kitao ,  Yoshihiro Takahashi

IPC分类号： A61B3/103

CPC分类号： A61B3/103

摘要： An eye refractive power measuring apparatus is disclosed. It includes a chart projection system for projecting a chart image for test use to a retina of an eye under test by using visible light, a measuring target projection system for projecting a measuring target image to the retina of the eye under test by using invisible light, a display device for displaying the measuring target image as a visible image, a focussing state of the measuring target image being made changeable simultaneous with change of a focussing state of the chart image for test.

摘要翻译： 公开了一种眼屈光力测量装置。 它包括一个图表投影系统，用于通过使用可见光将用于测试使用的图表图像投影到被测眼睛的视网膜，用于通过使用不可见光将测量目标图像投影到被测眼睛的视网膜的测量目标投影系统 用于将测量目标图像显示为可见图像的显示装置，使测量对象图像的聚焦状态随着用于测试的图表图像的聚焦状态的改变而同时变化。

公开(公告)号：US4848895A

公开(公告)日：1989-07-18

申请号：US820793

申请日：1986-01-22

申请人： Yasuo Kato ,  Kiwami Horiguchi ,  Shinji Wada ,  Ikuo Kitao

发明人： Yasuo Kato ,  Kiwami Horiguchi ,  Shinji Wada ,  Ikuo Kitao

IPC分类号： A61B3/103

CPC分类号： A61B3/103

摘要： There is disclosed an automatic eye refractive power measuring apparatus for automatically measuring refractive power of an eye under test by means of objective measurement. It comprises a projection system for projecting a measuring target image to a retina of the eye under test by invisible light; an imaging optical system for imaging a reflection image of the measuring target image projected to the retina and reflected by the retina; an opto-electric detector having a photosensitive surface disposed at imaging position and adapted to output electrical signal corresponding to the measuring target image formed on the photosensitive surface; display device for displaying the measuring target image reflected on the retina based on the electrical signal as a visible image; and an auto-measuring portion adapted to detect focussing state of the measuring target image projected to the retina based on the electrical signal and automatically calculated refractive power of the eye under test from the electrical signal.

摘要翻译： 公开了一种用于通过客观测量自动测量被测眼睛的屈光度的自动眼睛屈光度测量装置。 它包括用于通过不可见光将测量目标图像投射到被测眼睛的视网膜的投影系统; 成像光学系统，用于对投射到视网膜并由视网膜反射的测量对象图像的反射图像进行成像; 光电检测器，其具有设置在成像位置处的光敏表面，并适于输出对应于形成在感光表面上的测量目标图像的电信号; 显示装置，用于基于电信号显示在视网膜上反射的测量对象图像作为可视图像; 以及自动测量部分，其适于基于所述电信号检测投影到所述视网膜的所述测量对象图像的聚焦状态，并且根据所述电信号自动计算被测眼睛的折射力。

公开(公告)号：US4859051A

公开(公告)日：1989-08-22

申请号：US137718

申请日：1987-12-24

申请人： Yasufumi Fukuma ,  Ikuo Kitao ,  Yasuo Kato

发明人： Yasufumi Fukuma ,  Ikuo Kitao ,  Yasuo Kato

IPC分类号： A61B3/12 ,  A61B3/10 ,  A61B3/103

CPC分类号： A61B3/103

摘要： An eye testing apparatus, in which a cornea reflecting image and a retina reflecting image formed by projecting each target mark image onto a cornea and a retina of an eye to be tested are projected to a slight receiving portion through a measuring optical system, and in which a corneal configuration and a refractive power of the eye to be tested are measured according to a signal detected by the light receiving portion, characterized in that the light receiving portion includes a two-dimensional light receiving element, the measuring optical system simultaneously projecting the cornea reflecting image and the retina reflecting image to different areas of the two-dimensional light receiving element.

摘要翻译： 一种眼睛检查装置，其中将通过将每个目标标记图像投影到待测试的眼睛的角膜和视网膜上形成的角膜反射图像和视网膜反射图像通过测量光学系统投射到轻微的接收部分，并且 根据由受光部检测出的信号测量被测眼睛的角膜构造和屈光度，其特征在于，所述受光部包括二维光接收元件，所述测量光学系统同时投影 角膜反射图像和视网膜反射图像到二维光接收元件的不同区域。

公开(公告)号：US5984763A

公开(公告)日：1999-11-16

申请号：US215198

申请日：1998-12-18

申请人： Ikuo Kitao ,  Yoshiyuki Hatano ,  Toshihiro Iwai ,  Takeshi Nakamura ,  Hisao Fujinuma ,  Shinji Uno ,  Jun Akiyama

发明人： Ikuo Kitao ,  Yoshiyuki Hatano ,  Toshihiro Iwai ,  Takeshi Nakamura ,  Hisao Fujinuma ,  Shinji Uno ,  Jun Akiyama

IPC分类号： B24B9/14 ,  B24B49/00 ,  B24B49/02 ,  B24B1/00 ,  B24B7/19

CPC分类号： B24B9/148 ,  B24B49/00 ,  B24B49/02

摘要： A lens shape measuring apparatus is provided which comprises lens rotating shafts (16, 17) for rotatably holding an uncut lens, a feeler (63, 219, 220) disposed in contact with a working locus of the front or rear surface of the lens, and a calculation/control circuit (100) for detecting a difference in surface level of the lens from a change in data measured by the feeler (63, 219, 220) and controlling the contact of the feeler with the lens.

公开(公告)号：US5071245A

公开(公告)日：1991-12-10

申请号：US443111

申请日：1989-11-29

申请人： Yasufumi Fukuma ,  Akio Umeda ,  Ikuo Kitao ,  Noriyuki Nagai ,  Yasuhisa Ishikura ,  Kazutoshi Uchida

发明人： Yasufumi Fukuma ,  Akio Umeda ,  Ikuo Kitao ,  Noriyuki Nagai ,  Yasuhisa Ishikura ,  Kazutoshi Uchida

IPC分类号： A61B3/103

CPC分类号： A61B3/103 ,  A61B3/0008 ,  A61B3/113

摘要： An ocular refracting power measuring system includes a projector system for projecting the image of a light source on the eyeground of an eye to be tested and a light receiving system for condensing the light beam from the eyeground onto a light receiving element disposed at a position substantially conjugate with the pupil of the eye to be tested, whereby the ocular refracting power of the eye to be tested can be measured based on the distribution of light amount on the light receiving element and variations of the distribution of light amount due to the changed amount of light in the light source.

公开(公告)号：US4367019A

公开(公告)日：1983-01-04

申请号：US142720

申请日：1980-04-22

申请人： Ikuo Kitao ,  Kiichi Kamiyama

发明人： Ikuo Kitao ,  Kiichi Kamiyama

IPC分类号： A61B3/10 ,  A61B3/103

CPC分类号： A61B3/1035

摘要： Eye refractometer including a target projecting optical system for projecting a target image on the retina of a patient's eye, and an observing optical system for observing the target image. An image rotator is provided for rotating the target image to thereby locate the astigmatic axes. The image rotator is associated with a rotating mechanism which includes an actuating member for producing a stepless rotation of the image rotator and a second member for rotating the first member by an angle corresponding to a 90.degree. rotation of the target image.

摘要翻译： 眼睛折射计包括用于将目标图像投影在患者眼睛的视网膜上的目标投影光学系统和用于观察目标图像的观察光学系统。 提供图像旋转器用于旋转目标图像，从而定位散光轴。 图像旋转器与旋转机构相关联，旋转机构包括用于产生图像旋转器的无级旋转的致动构件和用于使第一构件旋转相应于目标图像的90度旋转的角度的第二构件。