MONTEREY, Calif.--A start-up called Artificial Muscle hopes its actuator technology will provide a cheaper, quieter, and lower-power alternative to the host of motors and other devices that control mechanical movements inside cameras.
The company's technology employs a particular variety of resilient substances called elastomers. This variety changes properties when a voltage is applied across them, growing softer or firmer. Artificial Muscle mounts a ring of the material to a central disk that's pushed by a spring; when the material relaxes, the spring pushes the central disk outward.
The distance the disk travels, or "throw," is … Read more