TOF rangefinding with large dynamic range and enhanced...

Details TOF rangefinding with large dynamic range and enhanced... TOF rangefinding with large dynamic range and enhanced...

2007-08-09

2010-12-14

Tarcza, Thomas H (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S005100, C356S005150

Reexamination Certificate

active

07852464

ABSTRACT:
A method for measuring time of flight of radiation comprises emitting modulated radiation in response to a first modulation signal, projecting the modulated radiation onto a scene, receiving radiation, the received radiation comprising a first portion being the modulated radiation reflected by the scene and a second portion being background radiation, converting the received radiation into a signal on a conversion node, the signal on the conversion node having a first and a second signal component, the first signal component being indicative of the background radiation and the second signal component being dependent on the reflected modulated radiation, and determining the time of flight of the radiation based on the second signal component. A corresponding device is also provided.

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Lange R., et al., “Solid-State Time-of-Flight Range Camera,”IEEE Journal of Quantum Electronics, New York, vol. 37, No. 3, Mar. 2001, pp. 390-397.

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