Last month, InVisage Technologies unveiled the first quantum-dot based image sensor. Jacqueline Hewett asks Ted Sargent, the company's CTO, why he believes silicon's light sensing days are numbered.

const int LIGHT_DWELL_TIME = 2; // 2-second timer for rapid testing. A more useful time for a sensor light might be 30 seconds. // Variables used to check and control light state int dwellTime; // ...

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