Abstract: A light control system acquires presence information that indicates whether or not another vehicle is present in a lateral or rear direction relative to an own vehicle. If presence information indicates the presence of another vehicle, the illumination range of the headlights of the vehicle is changed so as to be narrower. Thus, when another vehicle enters the illumination range from a lateral direction relative to the vehicle equipped with the system, the illumination range of the lights of the vehicle is changed to a narrower range before the entry into the illumination range.

Abstract: The exposure apparatus of the present invention is an exposure apparatus that illuminates an original with light from a light source so as to project a pattern of the original onto a substrate via a projection optical system for exposure, the exposure apparatus comprising a first shutter that shields light passing through a clearance between the light source and the projection optical system, and a control device that controls the opening and closing of the first shutter. While replacing a first original with a second original after an exposure operation has been completed by using the first original, the control device controls the first shutter such that the temperature of the projection optical system approaches closer to the projection optical system's saturation temperature that has been previously obtained via the second original.

Abstract: The exposure apparatus of the present invention is an exposure apparatus that illuminates an original with light from a light source so as to project a pattern of the original onto a substrate via a projection optical system for exposure, the exposure apparatus comprising a first shutter that shields light passing through a clearance between the light source and the projection optical system, and a control device that controls the opening and closing of the first shutter. While replacing a first original with a second original after an exposure operation has been completed by using the first original, the control device controls the first shutter such that the temperature of the projection optical system approaches closer to the projection optical system's saturation temperature that has been previously obtained via the second original.