An objective of the present invention is to provide carbapenem derivatives which have potent antibiotic activity against MRSA, PRSP, Influenzavirus, and -lactamase-producing bacteria and are stable against DHP-1. A plurality of image generators each generate image data including a depth distance, from a predetermined reference portion, of an image to be expressed by the image data, and color information thereof. The device projects a visible light beam, such as a laser beam, on a region of a patient, indicating the point of entry and the angle of approach to the subsurface target.