Screen Holdings Co., Ltd.

Mitsuhiro Yabu

Yusuke Mori

Yuya Kimura

An objective lens unit includes an objective lens, a first rotary member, a second rotary member, and a drive section. The objective lens is provided with a correction ring. The first rotary member is mounted on the objective lens. The second rotary member engages with the first rotary member. The first rotary member has a first engagement portion. The second rotary member has a second engagement portion that is to engage with the first engagement portion. The second engagement portion is disposed at a part in the circumferential direction of the second rotary member. The second rotary member rotates to be positioned at an engagement position or a retraction position. The engagement position is a position where the second engagement portion engages with the first engagement portion. The retraction position is a position where the second engagement portion retracts from the first engagement portion.

Objective lens unit and microscope

An imaging device acquires images of a plate-like specimen container having a rectangular shape as seen in top view. The imaging device includes a table, a position reference member, and a holding mechanism. The position reference member includes a first extension and a second extension which intersect at right angles to each other. The holding mechanism includes a rotating plate extending horizontally in plate-like form, and a main body portion for pivoting the rotating plate forwardly in a circumferential direction by means of elastic force of a spring. The rotating plate includes a front wing portion, and a protruding portion protruding forwardly in the circumferential direction from the front wing portion. The specimen container is urged in a second direction to align along the first extension when the rotating plate is pivoted to bring the front wing portion into contact with the specimen container. The specimen container is urged in a first direction to align along the second extension when the protruding portion comes in contact with the specimen container. Thus, the specimen container is aligned and placed in a previously determined position in the imaging device.

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Kyoto, Japan

Mitsuhiro Yabu