Low-light CCD imaging system

19 March 2008 Opto-Electronics

E2V’s L3M216 low-light CCD imaging system is designed for airborne and ground-based surveillance, underwater imaging with an enhanced blue response, driver view enhancement, commander’s night-sight and scientific imaging.

The sensor allows use with small optical components and, since it is back-thinned, performance is similar to existing, while an improved CCD manufacturing process reduces horizontal smear. With 768 pixels/line, it has an onscreen display for manual control/monitoring, fanless cooling, analog and digital outputs and a 12 V d.c. supply. The system is designed so that the imaging section may be separated from the drive electronics by 150 mm, thus simplifying installation in tightly packed environments.

Camera configuration can be modified either via the serial control path or via a membrane switch pad on the rear panel, in conjunction with a menu driven on-screen display. The camera displays current operating parameters such as video peak, video trough, exposure interval, EMCCD gain indicator, binning, filter and histogram processing status.

The ALC setup allows qualified users to determine at what illumination levels binning, filtering, dynamic gamma, picture stretch and extended integration will be introduced. Image processing software calculates a focus index for a block of pixels in the centre of the array and presents this number on the display. The user simply adjusts focus to obtain a maximum value.

For more information contact AfriMeasure, +27 (0)11 675 4447.

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