Correcting device for adjusting wavelength dependence in diffraction-based optical systems has a diffractive optical light modulator with controllable structures and a source of light for illuminating the light modulator

摘要

Depending on wavelengths, degrees of diffraction (7,8) have a lateral chromatic offset (D) related to a light modulator's (4) surface normal line (9) regarding the position of their different expansions (BO R,BO B) in a filter surface plane (10) determined by a focal length in a subsequent optical system.