A microscope system includes: a main body portion having an optical system for forming an image from at least observation light from a specimen; an objective lens unit having an objective lens for taking in the observation light and having a base portion with an approximately belt shape for holding the objective lens on one end; and a unit attachment portion that is held by the main body portion and is configured to detachably attach the base portion at a position where at least an optical axis of the objective lens coincides with an optical path of the observation light.
Claim:
1 . A microscope system comprising: a main body portion having an optical system for forming an image from at least observation light from a specimen; an objective lens unit having an objective lens for taking in the observation light and having a base portion with an approximately belt shape for holding the objective lens on one end; and a unit attachment portion that is held by the main body portion and is configured to detachably attach the base portion at a position where at least an optical axis of the objective lens coincides with an optical path of the observation light.
2 . The microscope system according to claim 1 , wherein the unit attachment portion includes: a supporter fixed to the main body portion; an intermediate portion that is supported by the supporter, extends in a direction intersecting with the optical path, and has an aperture portion through which the optical path passes; and a unit holder that is held by the intermediate portion and is configured to detachably hold the objective lens unit.
3 . The microscope system according to claim 2 , wherein the unit holder includes: a guide unit that is held by the intermediate portion and is configured to guide an attachment direction of the base portion; and a first engagement unit provided in the guide unit and engaged with the base portion, and the base portion includes: a slidable unit that is slidable on the guide unit; and a second engagement unit engaged with the first engagement unit.
4 . The microscope system according to claim 2 , wherein the unit holder includes: a guide unit that is held by the intermediate portion and is configured to guide an attachment direction of the base portion; a holder that is movable along the guide unit and is configured to detachably hold the objective lens unit; a first engagement unit provided in the guide unit and engaged with the holder; and a second engagement unit provided in the holder and engaged with the first engagement unit.
5 . The microscope system according to claim 4 , wherein the base portion includes a display unit that is provided on a side surface on the other end and is configured to display information of the objective lens held by the base portion.
6 . The microscope system according to claim 2 , wherein the unit attachment portion further includes: an objective lens holder that is held by the intermediate portion and is configured to hold a second objective lens different from the objective lens such that the second objective lens can freely advance or retract relative to the optical path; and an energizing unit configured to energize the objective lens holder in a direction intersecting with the optical path.
7 . The microscope system according to claim 1 , wherein the objective lens unit comprises an aberration correction unit including: a correction collar that is provided in the objective lens and is configured to correct aberration by moving an optical system provided inside the objective lens in a direction of the optical axis; and a driving source for rotating the correction collar.
8 . The microscope system according to claim 7 , wherein the aberration correction unit further includes a position detection unit configured to detect a position of the correction collar.
9 . An objective lens unit used for a microscope system including: a main body portion having an optical system for forming an image from at least observation light from a specimen; and a unit attachment portion that is held by the main body portion, the objective lens unit comprising: an objective lens for taking in the observation light; and a base portion that has an approximately belt shape for holding the objective lens on one end, and is configured to be detachably attached to the unit attachment portion at a position where at least an optical axis of the objective lens coincides with an optical path of the observation light.
10 . The objective lens unit according to claim 9 , further comprising an aberration correction unit including: a correction collar that is provided in the objective lens and is configured to correct aberration by moving an optical system provided inside the objective lens in a direction of an optical axis; and a driving source for rotating the correction collar.
11 . The objective lens unit according to claim 10 , wherein the aberration correction unit further includes a position detect