OPTICAL OBJECTIVE WITH ENLARGEMENT OF THE EXIT PUPIL BY MEANS OF A DIFFRACTIVE ELEMENT

摘要

Optical instrument, e.g. microscope, for producing an image and comprising a diffractive element (25) located in an image plane (SIP) for producing an array of exit pupils which are perceivable as a single, enlarged, exit pupil by the observer. The diffractive element (25) comprises an array of units (39) being lenticules (41) producing diffractive interference generating the plurality of exit pupils.