A projector that has a narrow-spectrum light source to complement a broad-spectrum light source is disclosed. Since the compound of the present invention has an anti stress action, it is useful for preventive andor therapeutic agent for a disease caused by stress, especially a digestive system disease caused by stress and is superior to oral absorption. An electrically driven set of gears drive a vertically positioned threaded rod attached to a gear housing connected to a transverse portion of the frame apparatus.