The optical probe contains a monolithic body (14) of optically transparent material to perform focusing for a plurality of parallel light paths from one or more fibers (10,12) to one or more object points (19). Surface parts (160,164,180,182) of the monolithic body are curved to form lenses (164,182) and/or coated with a reflective coating (160,180). On a fiber side of the monolithic body an opening or openings (168,164) are provided in a reflective coating opposite the tip or tips of the fibers (12,10) to pass light. On the object side of the monolithic body, a coated surface part (180) reflects the light path from the openings back to the fiber side of the monolithic body, from where the light path is reflected towards an aperture on the object side. At least part of the reflecting surfaces is curved to form reflector a plurality of distinct lenses on the same side of the monolithic body.