SPIE - Education Optical Super Resolution and Extended Depth of Focus SC1260

Digital imaging systems and human vision systems have limited capability for separating spatial features, thereby limiting imaging resolution. Reasons for this limitation are related to the effects of diffraction, i.e. the finite dimensions of the imaging optics, the geometry of the sensing array and its sensitivity, and the axial position of the object which may be out of focus. In this course, we will examine novel photonic approaches to imaging beyond the diffraction limit with an emphasis on practical methods to overcome these limitations. We will use the eye to model optical extended depth of focus concepts based on the “interference” effect. Implementation on conventional refractive devices such as spectacles, contact lenses and intraocular lenses will help demonstrate practical considerations for development. Extended depth of focus technology is capable of simultaneously correcting various refractive errors such as myopia, hyperopia, presbyopia, regular/irregular astigmatism, as well as their combinations.