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: http://www.sao.ru/drabek/CCDP/TUTORIAL/EBSENS/Abstract.htm
Дата изменения: Wed Sep 23 04:17:50 1998 Дата индексирования: Tue Oct 2 10:42:07 2012 Кодировка: Поисковые слова: dust disk |
Abstract Significantly higher performance, reduced form factor, low-light-level surveillance cameras relative to present state of the art are critical for many commercial and military applications. To achieve this goal, a new approach to low light level cameras was successfully demonstrated. In a cooperative research and development effort between Scientific Imaging Technologies, Inc. of Beaverton, OR and Intevac EO Sensors of Palo Alto, CA, back illuminated, electron bombarded CCD (EBCCD) sensors were designed and fabricated. Experiments demonstrated the EBCCD's sensitivity and contrast resolution superior to conventional intensified CCD (ICCD) approaches. Low light level signal to noise (STN) and contrast transfer function (CTF) data is presented. A model is derived that describes the performance of the EBCCD and the back-illuminated CCD relative to conventional approaches to nighttime imaging. A design and simulated performance of a video rate 2/3 inch, back-illuminated, electron bombarded CCD currently under development for low light imaging applications is also described. |