Elementary Optics

Elementary Ophthalmic Optics

Elementary Ophthalmic Optics

out that we are convinced every student of refraction should make himself acquainted with Mr Parsons' work. It is exceedingly well arranged and clearly expressed and the mathematical problems are stated with such lucidity that no one with a fair knowledge of mathematics can fail to follow them I he work may be said to stand midway between Hartridges Refraction and Donder s big work while improv...

Refraction of the Eye Including Elementary Physiological Optics

Elementary categories, elementary toposes

Hiding an elephant into a matchbox with transformation optics

Based on transformation optics‎, ‎we propose an illusion device that can make‎ ‎objects look much smaller and different than they actually are‎. ‎In particular‎, ‎the device has a capability to hide a large object (like an elephant) into a‎ ‎small one (like a matchbox)‎. ‎Compared to previous proposals for illusion‎ ‎devices‎, ‎there is no requirement for negative refractive index or for spee...