Distance detection device, distance detecting method, distance image generating apparatus, and distance image generation method

摘要

Problem to be solved: to suppress the distance rose and to make the maximum distance ranging possible.First step for determining the phase difference between the first modulated light and the first reflected light andIn the period with the first and second periodsA second step of discriminating the period of the phase difference based on the amount of charge read from each transfer gate corresponding to the second reflected light produced by the second modulated light, andIncludes a third step for determining the distance based on the phase difference and the period in which this phase difference belongs.The second step isThe second second modulated light is emitted in the first period within the first period, and the second second modulated light is emitted at the second time in the second periodEach on / off of each transfer gate is switched for each period of time in each of the first and second periodsFor each of the first and second periods, the period corresponding to the phase difference is determined based on the combination pattern of the magnitude of charge obtained by each transfer gate in response to the second reflected light.IncludingDistance detection method.Diagram