Measurement device
AssigneeKoito Manufacturing Co., Ltd.
InventorsMasayuki TAKAHASHI, Yasuo NAKAMURA, Kenichi HOSHI, Daiki KATO
Life of this patent
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Abstract
A measurement device includes: a light emitting unit configured to emit pulsed light; an imaging sensor configured to output a signal value corresponding to an exposure amount for each pixel; a timing control unit configured to expose the pixel of the imaging sensor to reflected light in an exposure period that is set according to a measurement target region and has an exposure width shorter than a pulse width of the pulsed light; and a calculation unit configured to calculate an arrival time of the reflected light based on signal values corresponding to three or more consecutive exposure periods that can include the pulse width.
Claims7
A measurement device comprising:
- a light emitting unit configured to emit pulsed light;
- an imaging sensor configured to output a signal value corresponding to an exposure amount for each pixel;
- a timing control unit configured to expose the pixel of the imaging sensor to reflected light in an exposure period that is set according to a measurement target region and has an exposure width shorter than a pulse width of the pulsed light;
- and
- a calculation unit configured to calculate an arrival time of the reflected light based on signal values corresponding to three or more consecutive exposure periods that include the pulse width.
Dependencies are inferred from the claim text.