Projection apparatus, projection method, and storage medium having program stored thereon, which provide high-quality image by effectively using spoke period

Abstract

A projection apparatus includes a light source unit which time-divisionally emits light in colors by light emission from light emitting devices; a display element using light emitted from the light source unit, displaying images respectively corresponding to the colors of the emitted light, and forming optical images by reflection or transmission light thereof; a projection unit emitting the optical images formed by the display element toward a projection target; a timing setting unit setting a change timing associated with changing each of the colors, and setting spoke periods generated at each change timing; a light source drive unit driving the light source unit, based on the change timings and spoke periods; a detection unit detecting information indicating a light amount of the light for each of the colors emitted from the projection unit during the spoke periods; and a light source controller setting a delay time for light emission timings at the light source unit in the spoke periods by the light source drive unit, based on information obtained by the detection unit.