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SYSTÈME OPTIQUE D'IMAGERIE, APPAREIL DE MICROSCOPE ET APPAREIL DE MICROSCOPE STÉRÉO AYANT LE SYSTÈME OPTIQUE D'IMAGERIE
SYSTÈME OPTIQUE D'IMAGERIE, APPAREIL DE MICROSCOPE ET APPAREIL DE MICROSCOPE STÉRÉO AYANT LE SYSTÈME OPTIQUE D'IMAGERIE
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摘要
Provided is an imaging optical system that can prevent enlargement of the entire optical system of a microscope apparatus while holding a wide distance between optical axes to allow enlargement to a low-power range. A variable power optical system 3 used in a parallel stereoscopic microscope apparatus 100 and the like includes a plurality of optical paths in which optical axes are arranged substantially parallel, includes a plurality of lens groups that change the magnification of a diameter of a luminous flux entering substantially parallel to each of the optical paths to eject the luminous flux as substantially parallel luminous fluxes, and at least two lens groups move along the optical axis in each optical path according to the change in the magnification. At least two lens groups of at least one optical path among the plurality of optical paths move in a direction including a component perpendicular to the optical axis according to the change in the magnification at at least part of a section where the magnification is changed from a high-power end state to a low-power end state.
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