Canon Presents 1MP SPAD Imager Prototype

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Canon has developed a prototype of what it calls "the world’s first single photon avalanche diode (SPAD) image sensor with signal-amplifying pixels capable of capturing 1-megapixel images."

The SPAD image sensor developed by Canon overcomes the longstanding difficulties of achieving high SPAD pixel counts. By adopting a new circuit technology, Canon was able to realize a digital image resolution of 1MP. Exposure time can be shortened to as little as 3.8ns. In addition, the sensor is capable of up to 24,000 fps with 1 bit output, thus enabling slow-motion capture of fast movement within an extremely short time frame.

The sensor also features a high time resolution as precise as 100 ps. With a high resolution of 1MP and high-speed image capture, it is also able to accurately perform 3D distance measurements.

The camera was jointly developed with scientists at the Swiss Federal Institute of Technology in Lausanne and published in OSA Optica.

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