| CPC G02B 21/18 (2013.01) [G02B 21/04 (2013.01); G02B 21/33 (2013.01); G02B 21/361 (2013.01)] | 17 Claims |
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1. An optical imaging device for a microscope, comprising:
an objective configured to collect detection light from an object and to guide the detection light into an optical path, and
an optical system comprising a plurality of lens elements configured to interact with the objective for optically imaging the object selectively in a first operating mode and a second operating mode,
wherein the optical system comprises a first optical subsystem associated with the first operating mode, the first optical subsystem being configured to form a first image of the object with a first magnification,
wherein the optical system comprises a second optical subsystem associated with the second operating mode, the second optical subsystem being configured to form a second image of the object with a second magnification, the second magnification being less than the first magnification,
wherein the second optical subsystem comprises an optical module insertable into the optical path for selecting the second operating mode, the optical module comprising a first lens element with a first positive refractive power causing the second magnification to be less than the first magnification by being closer to an exit pupil of the objective than other lens elements of the optical system when the optical module is inserted into the optical path,
wherein the second optical subsystem comprises a Keplerian telescope system having a most object-side lens element being formed by the first lens element with the first positive refractive power.
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