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Publication of SE218471C1publicationCriticalpatent/SE218471C1/sl
G02B13/00—Optical objectives specially designed for the purposes specified below
G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
G—PHYSICS
G02—OPTICS
G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices