| 摘要 |
A mounting apparatus (34) for repeatable positioning of an item (152) may include a first mount, a second mount, and a third mount (40, 60, 80). The first mount (40) may be configured to receive a first member (120) coupled to the item (152) wherein the first mount (40) may constrain the first member (120) against movement along three mutually-orthogonal directions (44, 46, 48). The second mount (60) may be configured to receive a second member (122) coupled to the item (152) and constrain the second member (122) against movement along two of the directions (46, 48). The third mount (80) may be configured to receive a third member (124) coupled to the item (152) and constrain the third member (124) against movement along one of the directions (46). The first, second, and third members (120, 122, 124) may be at least partially-spherical and may be engaged to the respective first, second, and third mounts (40, 60, 80). |
