Writing patterns, logos and lettering in light
Wednesday, October 1, 2008 - 16:42
in Physics & Chemistry
(PhysOrg.com) -- Logos and lettering can be written in light using freeform lenses. But how does the surface of the lens have to be structured in order to focus the light in the shape of a specific pattern? This used to be a task that took hours - now it can be done in a few seconds.