Back projection visual field tester
    1.
    发明授权
    Back projection visual field tester 失效
    背投视野测试仪

    公开(公告)号:US06729728B2

    公开(公告)日:2004-05-04

    申请号:US10152744

    申请日:2002-05-22

    IPC分类号: A61B310

    CPC分类号: A61B3/024

    摘要: One embodiment of the present invention is a visual field tester that includes: (a) a projection screen; (b) a stimulus projection system that projects a light stimulus onto a first side of the projection screen; and (c) a background projection system that projects background light onto the first side of the projection screen; wherein the stimulus projection system includes: (i) a first rotatable disk having an aperture; (ii) a second rotatable disk disposed in the aperture; and (iii) a stimulus radiation projector that includes a stimulus radiation source and a radiation projection lens system that are configured to project the stimulus from the second disk onto the first side of the projection screen.

    摘要翻译: 本发明的一个实施例是一种视野测试仪,其包括:(a)投影屏; (b)刺激投影系统,其将光刺激投射到投影屏幕的第一侧上; 和(c)将背景光投影到投影屏幕的第一侧上的背景投影系统; 其中所述刺激投影系统包括:(i)具有孔的第一可旋转盘; (ii)设置在所述孔中的第二可旋转盘; 和(iii)刺激辐射投影仪,其包括刺激辐射源和辐射投影透镜系统,所述刺激辐射源和辐射投影透镜系统被配置为将来自第二盘的刺激投影到投影屏幕的第一侧上。