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| Our goal is a camera system that can capture clear images of high-speed phenomena that cannot be perceived with the naked eye under ordinary lighting conditions. During the last year, we fabricated a 150,000-pixel ultrahigh-speed CCD that is sensitive enough to shoot clear images of fast phenomena. The pixel number is twice that of our previous model. We are trying to increase the pixel number to be adequate for the HDTV system, and have developed a new technique to cut the edges of a 150,000-pixel CCD with enough accuracy to join two such CCDs together. This exhibit presents a 300,000-pixel ultrahigh-speed, high-sensitivity CCD for an imaging experiment using a black and white camera. |
| This CCD directly connects a memory for video recording*1 to the photodiodes of each pixel. The large photodiode optical receptor area gives a sensitivity that is approximately ten times that of an ordinary high-speed imaging device. |
- The 300,000 pixels of this CCD is four times the number of pixels of the initial development model. The unit maintains the original's features of shooting 1 million frames per second and high sensitivity.
- We also devised a technology to divide the CCD output signal to perform parallel, high-speed readout, thereby enabling long, continuous shots at approximately 1,000 frames per second. *2
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We will enhance the sensitivity of the CCD by installing a microlens array and will develop a four-CCD color camera*3 compliant with the HDTV standard.
This research is being jointly carried out with Kinki University, DALSA Corporation, Hitachi Kokusai Electric Inc., and Shimadzu Corporation.
*1 144 frames
*2 External memory is used in this case.
*3 A camera that enhances resolution by using the pixel offset method. |
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