Hard Disk Drive Voice-Coil Laser Shutter Actuator
Seems like there is no end to the uses of old hard drives. This hack uses the voice coil of a used hard drive to act as a Laser Shutter. Thanks for the tip Robo. “We have developed a high-speed laser shutter based on voice-coil actuators found in generic hard disk drives. We have enhanced the shutter with a new driver circuit described below and a notched flag, achieving 500ns