Cameras

Scientists from The Langevin Institute, Paris, France, have constructed a new fingerprint imaging system that peers inside the finger to take a picture — a more reliable and secure way of identifying individuals. The fingerprint sensor, based on full field optical coherence tomography (FF-OCT), uses an...

Using a method known as ultrafast electron diffraction (UED), a scientific instrument from the Department of Energy’s SLAC National Accelerator Laboratory reveals nature's fastest processes, including the rapid motions of atoms and molecules.

Researchers from Japan have developed a new high-speed camera that can record events at a rate of more than 1-trillion-frames-per-second. The STAMP (Sequentially Timed All-optical Mapping Photography) technology holds promise for the study of complex, ultrafast phenomena.

A new prototype video camera is fully self-powered and can produce an image each second, indefinitely, of a well-lit indoor scene. Columbia University researchers designed a pixel that can not only measure incident light but also convert the incident light into electric power.

Jim Odom served as project manager on the Hubble Space Telescope from 1983 to 1986. As the world celebrates Hubble’s 25th anniversary, Mr. Odom shared some of his experiences on the project.

Phase retrieval (PR) and Shack-Hartmann Sensor (SHS) are the two preferred methods of image-based wavefront sensing widely used in various optical testbeds, adaptive optical systems, and ground- and space-based telescopes. They are used to recover the phase information...