Making a traditional glass lens requires a lot of experience, skill, and patience grinding a piece of glass to the required shape, and is not for the casual experimenter. Making a glass Fresnel ...

The questions in this quiz are suitable for GCSE physics students studying convex and concave lenses, real and virtual images, magnification and colour. If you struggled with the quiz, don't panic ...

Paper-thin optical lenses simple enough to mass produce like microchips could enable a new generation of compact optical devices. Researchers have fabricated and tested flat lenses called Fresnel ...

The final single color lens is developed on a plate and resembles silicon chips before they’re put into larger circuits. Paper-thin optical lenses simple enough to mass produce like microchips ...