Patent ID: 7006142

Claim:
A three-dimensional image-capturing device, comprising: a first light source that radiates a pulse-modulated first distance-measurement light beam of a first wavelength to a measurement subject; a second light source that radiates a pulse-modulated second distance-measurement light beam of a second wavelength to said measurement subject; a two-dimensional imaging device that comprises a first pixel which is able to sense light in a first band including said first wavelength and accumulates a corresponding amount of electric charge, and a second pixel which is able to sense light in a second band including said second wavelength and accumulates a corresponding amount of electric charge; a first light-source control processor that drives said first and second light sources, so that an emission of said second distance-measurement light beam starts after a start and before an end of an emission of said first distance-measurement light beam; a first imaging-device control processor that controls said two-dimensional imaging device to accumulate electric charges due to said first and second distance-measurement light beams in at least one of said first and second pixel within a predetermined first accumulation period; and a distance-information sensing processor that detects at least one reflected light beam of said first and second distance-measurement light beams reflected from said measurement subject within said first accumulation period, and calculates distance information of said measurement subject by using electric charges accumulated in a set of said first and second pixels, which are adjacently arranged.