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Working principle of a streak camera A streak camera is an instrument for measuring the variation in a pulse of light 's intensity with time. They are used to measure the pulse duration of some ultrafast laser systems and for applications such as time-resolved spectroscopy and LIDAR .
In their publications, Raskar's team claims to be able to capture exposures so short that light only traverses 0.6 mm (corresponding to 2 picoseconds, or 2 × 10 −12 seconds) during the exposure period, [6] a figure that is in agreement with the nominal resolution of the Hamamatsu streak camera model C5680, [7] [8] on which their experimental ...
Muybridge's photographic sequence of a race horse galloping, first published in 1878. High-speed photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high-speed photography as any set of photographs captured by a camera capable of 69 frames per second or greater, and of at least three consecutive ...
High-speed video cameras are widely used for scientific research, [4] [5] military test and evaluation, [6] and industry. [7] Examples of industrial applications are filming a manufacturing line to better tune the machine, or in the car industry filming a crash test to investigate the effect on the crash dummy passengers and the automobile ...
Each light streak in a solargraphic image represents one day. Where light streaks are broken or missing indicates obstruction of the sun, which is caused by cloud cover. Frequently, cameras are made from upcycled aluminum or tin cans which can be made light-tight and are generally weatherproof for the time needed to make the exposure.
In the aircraft example, the observer on the ground will observe unsteady flow, and the observers in the aircraft will observe steady flow, with constant streamlines. When possible, fluid dynamicists try to find a reference frame in which the flow is steady, so that they can use experimental methods of creating streaklines to identify the ...
As a result, one can place a camera after the knife edge such that the image of the object will exhibit intensity variations due to the deflections of the rays. The result is a set of lighter and darker patches corresponding to positive and negative fluid density gradients in the direction normal to the knife edge.
Lytro Illum 2nd generation light field camera Front and back of a Lytro, the first consumer light field camera, showing the front lens and LCD touchscreen. A light field camera, also known as a plenoptic camera, is a camera that captures information about the light field emanating from a scene; that is, the intensity of light in a scene, and also the precise direction that the light rays are ...