Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on ...

A full field of view could be restored if eyeglass lenses were able to adapt to different ... optical aberrations (no diffraction from fresnel grooves, no air gaps, and so forth) In the solution ...

While not useful for cameras, the fresnel lens came around this time in 1818 ... built into the screens allowing for a wider field of view with less weight and bulk. The future certainly holds ...