公开(公告)号：US5455644A

公开(公告)日：1995-10-03

申请号：US23114

申请日：1993-02-26

申请人： Koji Yazawa ,  Kazunobu Kobayashi ,  Kazuhiro Matsumoto ,  Shinya Tanaka

发明人： Koji Yazawa ,  Kazunobu Kobayashi ,  Kazuhiro Matsumoto ,  Shinya Tanaka

IPC分类号： A61B3/14

CPC分类号： A61B3/145

摘要： An ophthalmologic apparatus has an illuminating system for illuminating the fundus of an eye to be examined with infrared light from substantially the front of the eye to be examined through a pupil area, the illuminating system having a light source, and an image pickup camera for receiving infrared reflected light from the fundus of the eye to be examined illuminated by the illuminating system on an image pickup surface conjugate with the front eye part of the eye to be examined. The turbid state of the light transmitting body portion of the eye to be examined can be ascertained by the image output from the image pickup camera.

摘要翻译： 一种眼科装置具有照明系统，用于通过瞳孔区域从被检眼大致前方的红外线照射被检眼的眼底，所述照明系统具有光源，以及摄像摄像机，用于接收 来自被检查的眼睛的眼底的红外反射光由照明系统照射在与待检查的眼睛的前眼部分共轭的图像拾取表面上。 可以通过从摄像摄像机输出的图像来确定要检查的眼睛的透光体部分的混浊状态。

公开(公告)号：US4227780A

公开(公告)日：1980-10-14

申请号：US918923

申请日：1978-06-26

申请人： Shinichi Ohta ,  Kazunobu Kobayashi ,  Haruhisa Madate

发明人： Shinichi Ohta ,  Kazunobu Kobayashi ,  Haruhisa Madate

IPC分类号： A61B3/10 ,  A61B8/10 ,  G01S15/89 ,  A61B3/14 ,  G03B29/00

CPC分类号： G01S15/8965 ,  A61B3/10 ,  A61B8/10

摘要： An eye examining instrument comprises an ultrasonic wave generating source, reflecting members and a receiver. A concave reflecting mirror is provided to direct the generated ultrasonic waves in the direction along the optical axis of the objective lens of the instrument while converging the waves. Also, a concave reflecting mirror is provided to converge the ultrasonic waves reflected upon the cornea of the eye under test and examination into the receiver. The ultrasonic waves received by the receiver are transformed into an electric signal. The electric signal thus produced includes a component informing of the time required to receive the ultrasonic waves after the generation thereof and a component informing of the intensity of the received ultrasonic waves. The time component signal is compared with a reference signal representative of a predetermined working distance between the objective lens and the eye whereas the intensity component signal is compared with a reference signal representative of the alignment of the objective lens with the eye.

摘要翻译： 检眼仪器包括超声波发生源，反射构件和接收器。 设置凹面反射镜，以使得所产生的超声波在沿着仪器的物镜的光轴的方向上引导，同时会聚波。 此外，设置凹面反射镜以将被测眼睛上的反射的超声波收集在接收器中。 由接收机接收的超声波变换为电信号。 由此产生的电信号包括通知在生成之后接收超声波所需的时间和通知接收到的超声波的强度的分量的分量。 将时间分量信号与表示物镜和眼睛之间的预定工作距离的参考信号进行比较，而将强度分量信号与表示物镜与眼睛的对准的参考信号进行比较。