Jones D P, Harris S J, Scicinski S R
Department of Medical Electronics, St Bartholomew's Hospital Medical College, London, UK.
Med Biol Eng Comput. 1992 Sep;30(5):487-90. doi: 10.1007/BF02457826.
A new pupillometer for measuring the size of the pupil of the human eye is described. It uses two inexpensive 256-element charge coupled device (CCD) arrays in an orthogonal configuration. The system is controlled and data are analysed by means of a Z80A microcomputer. Software allows the position and diameter of the pupil to be displayed on a monochrome video monitor. Infra-red diodes irradiate the eye so that measurements can be made in darkness. The accuracy is better than +/- 0.1 mm, over the range 3.2-9.5 mm. Dynamic measurements of the pupil light reflex response can be made with sampling periods as short as 20 ms.
本文描述了一种用于测量人眼瞳孔大小的新型瞳孔计。它采用两个廉价的256像素电荷耦合器件（CCD）阵列，呈正交配置。该系统由一台Z80A微型计算机控制并进行数据分析。软件可将瞳孔的位置和直径显示在单色视频监视器上。红外二极管照射眼睛，以便能在黑暗环境中进行测量。在3.2 - 9.5毫米的范围内，测量精度优于±0.1毫米。瞳孔对光反射反应的动态测量采样周期可短至20毫秒。
