Component mounting device, and illumination device and illumination method for capturing images

The invention provides a component mounting device adapted to handle diverse recognition objects and configured to take up minimal space so as to meet the need for compact size; and also provides an illumination device and illumination method for capturing images in the component mounting device. In the component mounting device for mounting a component on a substrate (3), the substrate (3) is illuminated with illuminating light when an image is captured by a substrate recognition camera (12), and the illuminating light is emitted from a light-emitting panel (15). The light-emitting panel is composed of a light source (13) and a color liquid crystal panel (14) placed one above the other, and is provided with a plurality of regularly arranged light-emitting elements having individually variable light-emitting states. In the illumination process, the illumination ranges of the illuminating light emitted from the respective light-emitting elements are varied according to the object being captured. Images can the