公开(公告)号：US07478911B2

公开(公告)日：2009-01-20

申请号：US11662640

申请日：2005-09-05

申请人： Satoru Inakagata ,  Shuji Murakami ,  Shogo Fukushima ,  Hideo Fukunaga ,  Akio Tabuchi ,  Kazutaka Kani ,  Fumiatsu Maeda

发明人： Satoru Inakagata ,  Shuji Murakami ,  Shogo Fukushima ,  Hideo Fukunaga ,  Akio Tabuchi ,  Kazutaka Kani ,  Fumiatsu Maeda

IPC分类号： A61B3/02

CPC分类号： A61B3/112 ,  A61B3/0091 ,  A61B3/111

摘要： The perimeter comprises a display device 1, infrared light-emitting diodes 2, a CCD camera 3, a half mirror 4, an image processing device 5, a computer 6, and an operating switch 7. The computer 6 shows a fixed eye-target for fixing a line of sight of a subject and a light stimulus eye-target for giving a light stimulus to a pupil of the subject at a plurality of predetermined positions on the display device 1. The infrared light-emitting diodes 2 irradiate infrared light to an eye of the subject. The CCD camera 3 takes an image of the eye of the subject using the infrared light irradiated from the infrared light-emitting diodes 2. The image processing device 5 detects a pupil diameter of the subject based on the image taken by the CCD camera 3. The computer 6 measures a visual field of the subject based on the change of the pupil diameter of the subject detected by the image processing device 5. The feature of the present invention resides in that the display device 1 comprises a display device capable of adjusting background luminance of a screen and brightness of the light stimulus eye-target separately.

摘要翻译： 周边包括显示装置1，红外发光二极管2，CCD照相机3，半反射镜4，图像处理装置5，计算机6和操作开关7.计算机6显示固定的眼睛目标 用于固定被摄体的视线和用于在显示装置1上的多个预定位置处给予对象的瞳孔的光刺激眼睛目标。红外发光二极管2将红外光照射到 这个主题的眼睛。 CCD照相机3使用从红外发光二极管2照射的红外光拍摄被摄体的眼睛的图像。图像处理装置5基于CCD照相机3拍摄的图像来检测被检体的瞳孔直径。 计算机6基于由图像处理装置5检测到的被摄体的瞳孔直径的变化来测量被检体的视野。本发明的特征在于，显示装置1包括能够调整背景的显示装置 屏幕的亮度和光刺激眼睛目标的亮度分开。

公开(公告)号：US20080117384A1

公开(公告)日：2008-05-22

申请号：US11662640

申请日：2005-09-05

申请人： Satoru Inakagata ,  Shuji Murakami ,  Shogo Fukushima ,  Hideo Fukunaga ,  Akio Tabuchi ,  kazutaka Kani ,  Fumiatsu Maeda

发明人： Satoru Inakagata ,  Shuji Murakami ,  Shogo Fukushima ,  Hideo Fukunaga ,  Akio Tabuchi ,  kazutaka Kani ,  Fumiatsu Maeda

IPC分类号： A61B3/02

CPC分类号： A61B3/112 ,  A61B3/0091 ,  A61B3/111

摘要： The perimeter comprises a display device 1, infrared light-emitting diodes 2, a CCD camera 3, a half mirror 4, an image processing device 5, a computer 6, and an operating switch 7. The computer 6 shows a fixed eye-target for fixing a line of sight of a subject and a light stimulus eye-target for giving a light stimulus to a pupil of the subject at a plurality of predetermined positions on the display device 1. The infrared light-emitting diodes 2 irradiate infrared light to an eye of the subject. The CCD camera 3 takes an image of the eye of the subject using the infrared light irradiated from the infrared light-emitting diodes 2. The image processing device 5 detects a pupil diameter of the subject based on the image taken by the CCD camera 3. The computer 6 measures a visual field of the subject based on the change of the pupil diameter of the subject detected by the image processing device 5. The feature of the present invention resides in that the display device 1 comprises a display device capable of adjusting background luminance of a screen and brightness of the light stimulus eye-target separately.

摘要翻译： 周边包括显示装置1，红外发光二极管2，CCD照相机3，半反射镜4，图像处理装置5，计算机6和操作开关7。 计算机6示出了用于固定被摄体的视线的固定眼睛目标和用于在显示装置1上的多个预定位置处给予对象的瞳孔的光刺激眼睛目标。 红外线发光二极管2向被摄体的眼睛照射红外光。 CCD照相机3使用从红外发光二极管2照射的红外光拍摄被摄体的眼睛的图像。 图像处理装置5基于由CCD照相机3拍摄的图像来检测被检体的瞳孔直径。 计算机6基于由图像处理装置5检测到的被摄体的瞳孔直径的变化来测量被检体的视野。 本发明的特征在于，显示装置1包括能够分别调整屏幕的背景亮度和光刺激眼睛目标的亮度的显示装置。