Very high resolution framing records with a drum camera/pulsed copper vapor laser combination

摘要

Abstract: e time reduction with rotating prism cameras isusually achieved with narrow angle shutters, or slits.Exposure times of 1 microsecond are possible with thislow cost method, but there are disadvantages: (1) Vastamounts of continuous lighting are required to producea correctly exposed film, even with the fastestmaterials available. (2) Total frame recording timeremains constant for a given setting. `Focal plane'distortion occurs, particularly with extremely fastevents, although subject movement is `frozen.' !0