Mechanical irises are very intricately designed mechanisms that are mesmerizing to see in action — and if you have a laser cutter, you could make one in less than 10 minutes. Our “Teacher of Science”, ...

In a conventional camera lens, the iris consists of a set of overlapping mechanical blades that control the amount of light entering the camera. As efficient as this mechanical system is, it is too ...

In order to resolve the problem of congestion at the entrance to their hackerspace, the minds at i3Detroit installed a motion-activated mechanical iris in their door’s porthole. Grabbing the design ...