Image pickup apparatus including light source, image sensor, and control circuit

An image pickup apparatus comprising:

• a first light source which, in operation, emits a first pulsed light beam to project a first image of a first pattern at a first position in a predetermined region of a subject, and emits a second pulsed light beam to project a second image of a second pattern at a second position in the predetermined region of the subject, the second position being different from the first position;
• an image sensor including pixels, each of the pixels including:
• a photodetector which, in operation, converts received light into a signal charge, and
• a first accumulator and a second accumulator each of which, in operation, accumulates the signal charge at a different timing;
• and
• a control circuit which, in operation, controls the first light source and the image sensor, wherein
• the control circuit, in operation:
• causes the first light source to emit the first pulsed light beam,
• causes the first accumulator to accumulate a first signal charge generated in the photodetector by a first return light corresponding to the first pulsed light beam,
• causes the first light source to emit the second pulsed light beam at a different time point from a time point of the emission of the first pulsed light beam, and
• causes the second accumulator to accumulate a second signal charge generated in the photodetector by a second return light corresponding to the second pulsed light beam.