Optical apparatus and instruments, namely, eye wear magnifiers, illuminated magnifiers, magnifying readers, stand magnifiers, [ magnifying graduated rulers, ] hand-held magnifiers; [ linen magnifying testers, ] Galilean systems comprising telescopes, Keplerian systems comprising telescopes, optical filters, [ electronic vision aids, namely, electronic eye wear magnifiers, electronic magnifying readers and electronic hand-held magnifiers, flash lamps for cameras, microscope illumination devices, ] LEDs, [ binoculars, spotting scopes, ] monoculars, [ opera glasses, lens arrays, prisms, face plates for use with electronic vision aids, namely, for use with electronic eyewear magnifiers, for use with electronic magnifying readers and for use with electronic hand-held magnifiers, phase plates for use with electronic vision aids, namely, for use with electronic eye wear magnifiers, for use with electronic magnifying readers and for use with electronic hand-held magnifiers, reflectors, optical mirrors, ] Fresnel structures, namely, optical lenses; optical lenses and lens systems made thereof comprising optical lenses, optical lens holders and lens covers; magnifying glasses; reading glasses