PHASE FILTER, IMAGING OPTICAL SYSTEM, AND IMAGING SYSTEM

A phase filter (101) comprises a structure of annular rings with rotational symmetry around the optical axis, the annular rings each having substantially parabolic cross-sections such that incident light beams are uniformly magnified on a focal plane and mutually overlap. Un filtre de phase (101) co...

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Bibliographische Detailangaben
Hauptverfasser:	SHIMANO, TAKESHI, SAKITA, KOUICHI, OOTA, MITSUHIKO
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SIGNALLING SURGERY TRAFFIC CONTROL SYSTEMS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	A phase filter (101) comprises a structure of annular rings with rotational symmetry around the optical axis, the annular rings each having substantially parabolic cross-sections such that incident light beams are uniformly magnified on a focal plane and mutually overlap. Un filtre de phase (101) comprend une structure de bagues annulaires à symétrie de rotation autour de l'axe optique, les bagues annulaires ayant chacune des sections transversales sensiblement paraboliques de telle sorte que des faisceaux de lumière incidente sont uniformément agrandies sur un plan focal et se chevauchent mutuellement.