DISTANCE-MEASURING/IMAGING APPARATUS, DISTANCE MEASURING METHOD OF THE SAME, AND SOLID IMAGING ELEMENT

摘要

A distance-measuring/imaging apparatus having a high S/N and a high distance measurement accuracy is provided. The distance-measuring/imaging apparatus includes: a signal generation unit for generating an emission signal and exposure signal; a light source unit for performing light irradiation by receiving the emission signal; an imaging unit for performing exposure by receiving the exposure signal and for acquiring the exposure amount of the reflected light; and a calculation unit for calculating and outputting the distance information on the basis of the exposure amount. The imaging unit acquires a first exposure amount corresponding to the exposure in a first emission/exposure period, in which the exposure is performed by receiving the exposure signal simultaneously with a receiving timing of the emission signal. The imaging unit acquires a second exposure amount corresponding to the exposure in a second emission/exposure period, in which the exposure is performed by receiving the exposure signal after a lapse of a delay time from the receiving timing of the emission signal. The calculation unit calculates the distance information on the basis of the first exposure amount and second exposure amount that are acquired by changing the repeat count of the emission signal in the first emission/exposure period

主权项

1. A distance-measuring/imaging apparatus comprising:
a signal generation unit for generating an emission signal for commanding a light irradiation and an exposure signal for commanding an exposure to reflected light; a light source unit for performing the light irradiation by receiving the emission signal; an imaging unit for performing the exposure by receiving the exposure signal and for acquiring an exposure amount of the reflected light; and a calculation unit for calculating and outputting distance information based on the exposure amount, wherein
the imaging unit acquires a first exposure amount, of the exposure amount, corresponding to the exposure in a first emission/exposure period, in which the exposure is performed by receiving the exposure signal after a lapse of a first delay time from a receiving timing of the emission signal, andthe imaging unit acquires a second exposure amount, of the exposure amount, corresponding to the exposure in a second emission/exposure period, in which the exposure is performed by receiving the exposure signal after a lapse of a second delay time from the receiving timing of the emission signal, the second delay time being different from the first delay time, and wherein the calculation unit calculates the distance information based on the first exposure amount and the second exposure amount acquired by changing at least one of:
a number of repeats of at least one of the emission signal and the exposure signal in the first emission/exposure period; anda number of repeats of at least one of the emission signal and the exposure signal in the second emission/exposure period.