| 摘要 |
A microscope includes a first stage for placing a specimen on a first plane, a second stage for placing the specimen on a second plane, an objective lens provided between the first plane and the second plane, the objective lens being provided so that the first plane and the second plane are in conjugate relationship with the objective lens, a Koehler illuminating optical system for supplying an illuminating light beam for illuminating the first plane, the illuminating optical system supplying the illuminating light beam to the second plane through the objective lens when the specimen is placed on the second plane, and an observation system for observing therethrough the image of the specimen formed on a third plane, the observation system being provided with an optical system cooperating with the objective lens to cause the image of the specimen placed on the first plane to be formed on a third plane, or cause the image of the specimen placed on the second plane to be formed on the third plane.
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