Charles-Anthony Fortin of photonetc writes in response to More DIY Opitcal Shutters, to tells us about Brandstrom Instruments. They sell self-restoring solenoids for as low as $250, and bare aluminum shutters for as low as $25.
Several months ago we wrote a short write up about making a cheap optical shutter out of a hard drive disk controlled via Arduino. Since then we have had two Uniblitz shutters fail. We have now seen 6 Uniblitz shutters seen fail relatively quickly, with different users and different use conditions, over three labs. Even […]
An anonymous contributor wrote in about making laser shutters using hard disk drive rotary voice-coil actuators. The contributor’s lab has made a couple of these which are controlled via an Arduino, at a much lower cost than shutters from Thorlabs or similar. Another paper of a similar vein, by W. Bowden, R. Hill, G. Baird, and P. […]