An Automatic High Efficient Method for Dish Concentrator Alignment
Figure 3
(a) Testing experiment setup. Light from a laser pointer is projected to the facets; its reflection is viewed on a screen near the focus. (b) Recorded positions of light spots by moving , in same direction with interval of 2 cm (blue arrow) and in opposite direction with interval of 1 cm (red arrow). (c) The lights spots formed by moving , can be well fitted by straight lines. Only the points indicated by arrows are plotted. (d) The relative errors to the fitted lines are of order .
