Optical tuning apparatus for afocal optic system includes deviator placed on optic axis, and selection of points in central zone of analysis and edge fields

摘要

Tuning is done by selecting point (P0) in central zone of analysis (Z0) of central field (chc) of object field of apparatus, and peripheral points (P1 - P4) in edge fields (chb) of object field. Optic system includes optic deviator (41a - 44a) placed on optic axis (delta e) and at pre-determined distance from optic apparatus to tune in (3). Peripheral points are brought back in central zone, and optic deviator is placed on transparent substrate (40a) transmitting light beam without modification.