Patent ID: 8591034

Claim:
A projector configured to switch between a right-eye image and a left-eye image at a first switching timing and a second switching timing of a plurality of switching timings to output the right-eye image and the left-eye image alternately, the first switching timing and the second switching timing of the plurality of switching timings being temporally adjacent to each other, the projector comprising: a discharge lamp; a discharge lamp drive section configured to supply a drive current to the discharge lamp for driving the discharge lamp; and a control section configured to control the discharge lamp drive section, a time between the first switching timing and the second switching timing of a plurality of switching timings including a first period and a second period, and the control section being configured to perform a second period alternating-current control process that controls the discharge lamp drive section such that an absolute value of the drive current in the first period is less than the drive current in the second period, and the drive current supplied to the discharge lamp during the second period is an alternating current.