Patent ID: 7919742

Claim:
A projector, comprising: an operation unit which receives operation by a user; a projection unit which projects light corresponding to an image signal; and a light intensity control unit which controls light intensity of the light projected by the projection unit, wherein: the light intensity control unit controls the light intensity in the order of reception of plural operations received by the operation unit from the user; the light intensity control unit controls the light projected by the projection unit such that the light is a low-luminance light upon receiving a first operation from the user, the low-luminance light having a low light intensity; the light intensity control unit controls the light projected by the projection unit such that the light is a high-luminance light upon receiving a second operation subsequent to the first operation from the user, the high-luminance light having a light intensity that is higher than the light intensity of the low-luminance light; and the operation unit receives the second operation only after elapse of at least a predetermined time from the reception of the first operation.