Interferómetro de compensación de campo

摘要

The invention relates to a field-compensated interferometer (1) including an optical assembly (2) for directing incident light beams (4) having a field angle &thetas; relative to an optical axis of the interferometer (1), into arms (5, 6) of the interferometer, and a beam splitter (12), the arms (5, 6) including at least one mechanically movable optical device (15, 16) for generating a variable optical path difference between beams generated by the separation of each incident beam (4) using said beam splitter (12), said interferometer (1) being characterized in that it includes at least one field compensation optical element (E) arranged in one or the other of the image focal planes of the optical assembly (2), said image focal planes being combined relative to the beam splitter (12), said element (E) including at least one surface (9) that is curved so as to generate a path difference between the incident beams having a non-zero field angle and the incident beams having a zero field angle, the generated path difference making it possible to compensate for the self-apodization resulting from the field angle.