An imaging device for in-line holographic imaging of an object (110) comprises: a set of light sources (102), wherein each light source (102) is configured to output light in a confined illumination cone; an image sensor (120), which comprises a set of light-detecting elements (122) for detecting incident light, wherein the set of light sources (102) are configured to output light such that the confined illumination cone of each light source (102) illuminates a specific part of the object (110); and wherein the light-detecting elements (122) detect a plurality of interference patterns, wherein each interference pattern is formed by diffracted light from the object (110) originating from a single light source (102) and undiffracted light from the same single light source (102), wherein at least a sub-set of light-detecting elements (122) is arranged to detect light relating to not more than one interference pattern.
展开▼
