Patent ID: 6191829
Filing Date: 2001-02-20
Classification: B82Y,G02B,G03F,G11B

Abstract:
An optical apparatus for providing super resolution of an image provided with a focusing optics for focusing linearly polarized light containing such image;said optical apparatus characterized in that an optical rotatory element having a region wherein a polarization axis of the linearly polarized light can be optically rotated in at least a portion thereof is disposed in an optical path of the linearly polarized light so as to differentiate locally the orientation of the polarization axis of the linearly polarized light; andsaid optical rotatory element has a .theta..degree. twisted region optically rotatable region capable of optically rotating the polarization axis of the linearly polarized light falling thereon by an switchable angle .theta..degree., and a (.theta.-90).degree. twisted region optically rotatable region capable of optically rotating the polarization axis of the linearly polarized light falling thereon substantially by an angle of (.theta.-90).degree..