| 摘要 |
<p>The invention concerns a collapsible projection assembly (112) and a method (600) for operating same. The collapsible projection assembly can include a rotatable arm (116) having at least one pivot point (118), a projector (120) that can project an image (122) onto a surface (114), a first sensor (124) that can detect the location of an input device (128) in relation to the image and a second sensor (126) that can detect when the input device pierces a plane (130) above the image. The rotatable arm can be movable from a non-operational position to an operational position such that a predetermined spatial relationship between the projector, the first sensor and the second senor can be at least substantially maintained when the rotatable arm reaches the operational position.</p> |
