ILLUMINATION DEVICE AND ILLUMINATION SYSTEM AND MOBILE BODY INCLUDING THE SAME

摘要

An illumination device includes a first light source and a second light source, a sensor, and a controller. The controller repeats a plurality of operation cycles, one operation cycle being a set of a first period in which only a detection target light source is caused to emit light and a second period in which the first light source and the second light source are caused to emit light. The sensor outputs detection values of detected light amounts in the first period. The controller controls the light source such that light amount of the light source fall in a target range, based on a detection result that corresponds to a value corresponding to the detection values of the light amount detected a predetermined number of times.

主权项

1. An illumination device comprising:
a light source portion; a sensor configured to detect a light amount of the light source portion; and a controller configured to control lighting of the light source portion, the light source portion including a first light source and a second light source, the controller being configured to repeat a plurality of operation cycles, one operation cycle being a set of a first period in which only either one of the first light source or the second light source, which is a detection target light source whose light amount is to be detected by the sensor, is caused to emit light and a second period in which the first light source and the second light source are caused to emit light, the controller being configured to control the lighting of the light source portion such that composite light generated by light from the first light source and light from the second light source has a same light output over the plurality of operation cycles, the sensor being configured to output detection values of a light amount of the first light source in the first period of a first operation cycle in the plurality of operation cycles and a light amount of the second light source in the first period of a second operation cycle in the plurality of operation cycles, the second operation cycle being different from the first operation cycle that are separately detected, and the controller being further configured to separately control lighting of the first light source and lighting of the second light source such that a light amount of the detection target light source falls in a target range based on a detection result that corresponds to a value corresponding to the detection values of the light amount detected a predetermined number of times.