The digital camera in your home shares a family tree with the James Webb Space Telescope. Webb’s instruments use “detectors,” similar to the sensors in digital cameras, to convert images into a digital signal. At the Jet Propulsion Laboratory in California, the detectors are undergoing temperature and vibration testing.
Webb’s Technology Overview
http://webbtelescope.org/webb_telescope/technology_at_the_extremes/overview.php
“Behind the Webb” is a recurring video series from HubbleSite, home of the Hubble Space Telescope and the upcoming Webb Space Telescope. Join host Mary Estacion as she goes behind the scenes to watch the construction and testing of the parts that will make Webb the world’s most powerful infrared telescope.