| 摘要 |
A display apparatus includes an image source, an eye position detector, and a combiner, that are aligned to a user's eye. The eye position detector monito rs light reflected from the user's eye to identify the pupil position. If light from the image source becomes misaligned with respect to the pupil, a physic al positioning mechanism adjusts the relative positions of the image source and the beam combiner so that light from the image source is translated relative to the pupil, thereby realigning the display to the pupil. In one embodiment , the positioner is a piezoelectric positioner and in other embodiments, the positioner is a servomechanism or a shape memory alloy.
|
