g-a-lenkova documents

On focal shift and phase Fresnel lens

Documents On focal shift and phase Fresnel lens

$Methods for investigating optical characteristics of bifocal diffractive-refractive intraocular lenses$

Documents Methods for investigating optical characteristics of bifocal diffractive-refractive intraocular lenses

$Effect of the eye pupil diameter and the phase shift in the diffraction structure on bifocal properties of diffractive-refractive intraocular lenses$

Documents Effect of the eye pupil diameter and the phase shift in the diffraction structure on bifocal properties of diffractive-refractive intraocular lenses

Autocollimator with photoelectric display

Documents Autocollimator with photoelectric display