A new approach to framing cameras: single-shot ultrafast imaging using a polygon scanner and a large area CMOS detector (Conference Presentation)

The scientific community has collectively made tremendous progress in pushing the fundamental limits of high-speed imaging technology of the past few decades. While commercially available high-speed cameras can now be purchases enabling records at 5+ million frames per second and with high pixel counts per image, these technologies are relatively new to the market and quite expensive. Here, we present a high-speed multi-projection framing camera-based imaging system designed for capturing rapid dynamic events within a single acquisition. Central to this system is a motorized spinning polygon mirror, which encodes the time sequence by laterally displacing sub-images across a large area camera sensor. The sample scene is illuminated from several angles, generating multiple projections that are vertically stacked on the camera sensor. These projections are subsequently utilized to reconstruct a pseudo-3D representation of the scene, making it possible to evaluate the event's dynamics within the volume.