View Single Post
craigster59 craigster59 is online now
Registered
 
craigster59's Avatar
 
Join Date: Aug 2004
Location: Gilbert, Az
Posts: 22,026
Garage
The introduction of the CCD revolutionized high-speed photography in the 1980s. The staring array configuration of the sensor eliminated the scanning artifacts. Precise control of the integration time replaced the use of the mechanical shutter. However, the CCD architecture limited the rate at which images could be read off the sensor. Most of these systems still ran at NTSC rates (approximately 60 frame/s), but some, especially those built by the Kodak Spin Physics group, ran faster and recorded onto specially constructed video tape cassettes. The Kodak MASD group developed the first HyG (rugged) high speed digital color camera called the RO that replaced 16-mm crash sled film cameras[13]. Many new innovations and recording methods were introduced in the RO and further enhancements were introduced in the HG2000, a camera that could run at 1000 frame/s with a 512 x 384 pixel sensor for 2 seconds. Kodak MASD group also introduced an ultra high speed CCD camera called the HS4540 that was designed and manufactured by Photron in 1991[14] that recorded 4,500 FPS at 256 x 256. The HS4540 was used extensively by companies manufacturing automotive air bags to do lot testing which required the fast record speed to image a 30 ms deployment.
By adding an image intensifier to a CCD, it is possible to capture a single frame of a very fast event. Hadland uses this technique for a range of high-speed cameras capable of running at 1,000,000 frame/s, though record lengths are limited to 8 or 16 images. More recently, Specialised Imaging Limited[2] introduced a high speed camera that was capable of running at 200,000,000 frame/s with up to 32 images.
__________________
---------------------------------------------------------------------------

"Prayer isn't a parachute. It's a compass. It doesn't save you from the storm. It guides you through it." - Bear Grylls
Old 09-28-2010, 08:35 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)