| 摘要 |
<p>There is disclosed a spectral imaging apparatus for processing electromagnetic (EM) radiation, the EM radiation originating from a target scene (S) and comprising a wide range of frequencies, the system comprising:
a dispersive element (2) for receiving EM radiation from the target scene and promoting differing amounts of dispersion depending on the frequency of the EM radiation,
a deformable lens (4) arranged to receive EM radiation from the dispersive element,
an imaging sensor (6) for detecting EM radiation across the wide range of frequencies, and arranged to receive EM radiation from the deformable lens (4),
wherein the deformable lens (4) is operable to adopt any one of a plurality of focal conditions, each focal condition tending to focus a different range of the EM radiation at the imaging sensor (6), each focal condition thereby defining a component band for the EM radiation.</p> |
