Sharp develops progressive-scan CCDs for security cameras

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Sharp Corp says it has developed a pair of new 1/3-type progressive-scan CCDs for security cameras (520 kpixels and 610 kpixels) featuring the industry’s highest sensitivity of 1,900 mV and lowest smear ratio of -120 dB.

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Security cameras are spreading around the world for applications such as disaster preparedness and crime prevention, and for recording evidence of criminal activity and accidents. There is a growing need for higher sensitivity and resolution for security cameras that are capable of shooting clearly both under bright sunlight during the day and in low light conditions at night.

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Sharp said its CCDs achieve the industry’s highest sensitivity of 1,900 mV thanks to adopting pixel-shrinking technology based on expertise accumulated in increasing the image resolution of compact digital cameras, and through an innovative design of a micro-lens structure that maximizes light collection efficiency for the sensor element.

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The new CCDs also feature the industry’s lowest smear ratio of -120dB, making it possible to reduce smearing when shooting video of strong light sources such as headlights at night. They support progressive scan readout and offer a high horizontal resolution of over 650 TV lines for shooting high-quality video of fast-moving objects with minimal blurring.

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