Systems with reflecting surfaces, with or without refracting elements

GPHYSICS G02Optics G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

G02B17/00Systems with reflecting surfaces, with or without refracting elements

G02B17/002Arrays of reflective systems G02B17/004Systems comprising a plurality of reflections between two or more surfaces G02B17/006Systems in which light light is reflected on a plurality of parallel surfaces G02B17/008Systems specially adapted to form image relays or chained systems G02B17/02Catoptric systems G02B17/023for extending or folding an optical path G02B17/026having static image erecting or reversing properties only G02B17/04using prisms only G02B17/045having static image erecting or reversing properties only G02B17/06using mirrors only G02B17/0605using two curved mirrors G02B17/061on-axis systems with at least one of the mirrors having a central aperture G02B17/0615off-axis or unobscured systems in wich all of the mirrors share a common axis of rotational symmetry G02B17/0621off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry G02B17/0626using three curved mirrors G02B17/0631on-axis systems with at least one of the mirrors having a central aperture G02B17/0636off-axis or unobscured systems in which all of the mirrors share a common axis of rotational symmetry G02B17/0642off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry G02B17/0647using more than three curved mirrors G02B17/0652on-axis systems with at least one of the mirrors having a central aperture G02B17/0657off-axis or unobscured systems in which all of the mirrors share a common axis of rotational symmetry G02B17/0663off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry G02B17/0668having non-imaging properties G02B17/0673for light condensing G02B17/0678specially adapted to emit light in a 360° plane or hemisphere G02B17/0684for light collecting G02B17/0689specially adapted to receive light from a 360° plane or hemisphere G02B17/0694with variable magnification or multiple imaging planes, including multispectral systems G02B17/08Catadioptric systems G02B17/0804using two curved mirrors G02B17/0808on-axis systems with at least one of the mirrors having a central aperture G02B17/0812off-axis or unobscured systems in which all of the mirrors share a common axis of rotational symmetry G02B17/0816off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry G02B17/082using three curved mirrors G02B17/0824on-axis systems with at least one of the mirrors having a central aperture G02B17/0828off-axis or unobscured systems in which all of the mirrors share a common axis of rotational symmetry G02B17/0832off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry G02B17/0836using more than three curved mirrors G02B17/084on-axis systems with at least one of the mirrors having a central aperture G02B17/0844off-axis or unobscured systems in which all of the mirrors share a common axis of rotational symmetry G02B17/0848off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry G02B17/0852having a field corrector only G02B17/0856comprising a refractive element with a reflective surface, the reflection taking place inside the element G02B17/086wherein the system is made of a single block of optical material G02B17/0864having non-imaging properties G02B17/0868for light condensing G02B17/0872specially adapted to emit light in a 360° plane or hemisphere G02B17/0876for light collecting G02B17/088specially adapted to receive light from a 360° plane or hemisphere G02B17/0884having a pupil corrector G02B17/0888the corrector having at least one aspheric surface G02B17/0892specially adapted for the UV G02B17/0896with variable magnification or multiple imaging planes, including multispectral systems