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    • 2. 发明授权
    • Method and apparatus for testing lenses
    • 用于测试镜片的方法和装置
    • US4545678A
    • 1985-10-08
    • US510264
    • 1983-07-01
    • Wolfgang GrimmHermann Schurle
    • Wolfgang GrimmHermann Schurle
    • G01M11/02G01B9/00
    • G01M11/0264
    • The invention concerns a method and apparatus for testing aspherical lenses, particularly continuous-focus eyeglass lenses. The negative picture (7) of a test pattern (1) is produced by means of a master lens (4) which is placed in the ray path of the optical system (6) of the testing device. (FIG. 1). Thereupon the negative picture is projected back onto the test pattern over said ray path, which is now traversed in the opposite direction. If the specimen to be tested is now substituted for the master lens, light edges appear in the plane of the test pattern and give information as to the deviations of the distribution of the refractive power of the test specimen from the desired values of the master lens.
    • 本发明涉及用于测试非球面透镜,特别是连续聚焦眼镜镜片的方法和装置。 测试图案(1)的负图像(7)通过放置在测试装置的光学系统(6)的光线路径中的主透镜(4)产生。 (图。1)。 因此,负图像在所述光线路径上被投射回到测试图案上,其现在沿相反的方向穿过。 如果要测试的样品现在代替主镜头,则在测试图案的平面中出现光边缘,并且提供关于测试样本的折射力分布与主镜片的期望值的偏差的信息 。
    • 6. 发明授权
    • Vision testing system for testing the sight function of a patient
    • 用于测试患者视力功能的视力测试系统
    • US5331358A
    • 1994-07-19
    • US879995
    • 1992-05-08
    • Hermann SchurleWolfgang GrimmHartmut Mennicke
    • Hermann SchurleWolfgang GrimmHartmut Mennicke
    • A61B3/02A61B3/032G02F1/1347H04N13/00G02B27/02
    • H04N13/0434A61B3/032G02F1/13471H04N13/0422
    • A vision testing system includes polarization spectacles having different polarization axes with or without .lambda./4 filters for the two polarization lenses forward of the eye of the patient to be tested. This system also includes a vision testing apparatus for generating light having a specific polarization direction. The vision testing apparatus includes essentially two polarization filters and two LCD-displays which are mounted alternately one behind the other. This arrangement can so influence the light coming from the light source that test figures or portions of the test figures can be seen by one eye or by both eyes. If a test figure is to be changed, then a corresponding command is issued via a key pad to a switching unit which drives two drive circuits of the two LCD-displays in a desired manner. By making appropriate modifications of the vision testing apparatus, a patient can be tested as to color-vision acuity.
    • 视力测试系统包括具有不同偏振轴的偏振眼镜,其具有或不具有用于待测试患者的眼睛前方的两个偏振透镜的λ/ 4滤光片。 该系统还包括用于产生具有特定偏振方向的光的视力测试装置。 视觉检测装置基本上包括两个偏振滤光器和两个交替安装在一起的LCD显示器。 这种布置可以影响来自光源的光,测试图形或测试图的部分可以被一只眼睛或两只眼睛看到。 如果要更改测试图,则通过键盘将相应的命令发送到以期望的方式驱动两个LCD显示器的两个驱动电路的切换单元。 通过适当地修改视力测试装置,可以对患者的颜色视力进行测试。