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

Essentially, you could have both a fisheye and an ultra-wide without buying – or carrying – two separate lenses. The patent doesn’t use the word modular, but adding one system to another ...

However, the human eye is a relatively simple optical device with only two elements ... optical system for humans; it also supports the optimization of the design of contact lenses, refractive ...