| 摘要 |
<p>An electronic digital imaging apparatus includes an intensity-modulated light source (80) for emitting a light beam along an optical path, an adjustment block (100) to which the light source (80) is fixed and which is movable along the optical path to move the light source (80) along the optical path, and means for scanning the light beam along a recording surface. The adjustment block (100) has two opposed ends (102, 104) and a central region (103); one of the opposed ends being fixed relative to the optical path, the other of the opposed ends being adjustable in the general direction of the optical path, and the central region (103) carries the light source (80); whereby adjustment of the other of the opposed ends (102, 104) in the general direction of the optical path by a given distance is effective to move the light source 80) along the optical path by a fraction of the given distance. Projection optics (31) are detachably integral with the light source (80) in the optical path for focusing the light beam at the recording surface. The projection optics (31) being detachable from the light source (80) without effecting the position of the light source along the optical path so as to not disturb the focus of the imaging apparatus upon re-attachment of the projection optics (31) to the light source (80). <IMAGE></p> |
