Imaging device for in-line holographic imaging of an object

A diagnostic equipment for analysis of an object, comprising:

• an imaging device for in-line holographic imaging of the object, wherein the imaging device comprises:
• a set of light sources, wherein each light source is configured to output light in a confined illumination cone;
• and
• an image sensor comprising a set of light-detecting elements for detecting incident light,
• wherein the set of light sources are configured to output light such that the confined illumination cones of the light sources are arranged side-by-side and the confined illumination cone of each light source illuminates a specific part of the object,
• wherein first light sources in the set of light sources are configured to emit light of a first wavelength and second light sources in the set of light sources are configured to emit light of a second wavelength,
• wherein the first light sources and the second light sources are alternatingly arranged in the set of light sources such that each first light source has second light sources as closest neighbors,
• wherein the image sensor is arranged such that the light-detecting elements detect a plurality of interference patterns,
• wherein each interference pattern is formed by diffracted light from the object originating from a single light source in the set of light sources and undiffracted light from the same single light source,
• wherein adjacent parts of the object are illuminated by light of the first wavelength and light of the second wavelength in a spatially alternating fashion, and
• wherein at least a subset of the set of light-detecting elements is arranged to detect light relating to not more than one interference pattern based on wavelengths of the respective interference patterns.