| abstract |
At illuminance of 5 lx to 150 lx, human perceived color appearance is higher in visibility regardless of various color rendering metrics scores, and human perceived chromatic color appearance It is an object of the present invention to provide an illumination method that is more favorable and improves the feeling of brightness, and a light-emitting device that embodies the illumination method. When the light emitted from the light emitting device illuminates the object, the light measured at the position of the object is illuminated so as to satisfy specific requirements. The light emitting device is characterized in that light emitted from the light emitting device in the main radiation direction satisfies specific requirements. [Selection] Figure 40 |