| 摘要 |
A device ( 1 ) for measuring the three-dimensional movements of an eye includes: (a) a marker array ( 6 ) that identifies prescribed positions on the eye whose movements are to be measured, (b) a digital camera ( 2 ) for capturing the two-dimensional images of this marker array ( 6 ) as the eye is moved, (c) a light source ( 12 ) that illuminates the marker array ( 6 ) with an output that is outside the spectral range of the camera ( 2 ), (d) light sources ( 20 ) that are used to align the camera's optical axis with the center of the eye, (e) an algorithm for computing the three-dimensional positions of the marker array ( 6 ) from the information contained in the captured digital images, and (f) a base ( 16 ) for fixing the position of the camera relative to the position of the eye, wherein the materials of the marker array ( 6 ) are chosen so that the array has the ability to, when illuminated as described above, give off energy that is in the spectral range of the device's camera ( 2 ). |
