Red_light_through_lens_on_fiber_Roberts_clipped.jpg
Red laser light, invisibly guided by the fiber, expands in a cone and is collimated by a slide-on lens. The entire construction has a length of 1 mm.
Red laser light, invisibly guided by the fiber, expands in a cone and is collimated by a slide-on lens. The entire construction has a length of 1 mm.
