A method for determining order of locomotives in a locomotive consist is provided. Two sections joined by hinges to a spine, formed principally of plastic and paperboard materials, fold into a book or album-like structure to house the product components. The image of the subject obtained contains a portrait image, and the face-image portion of the portrait image is detected by executing processing for detecting a face image. An optical culmination device may be used to further intensify the power output from the LEDs. The inventive device is adapted to be used for applying a personal care product, such as cosmetic products, requiring to be rapidly and greatly cooled immediately before being applied to the skin.