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US 11,693,223 B2Granted
Autofocusing microscope objective
AssigneeQioptiq Photonics GmbH & Co. KG
InventorWitold Hackemer
Life of this patent
Estimating the term…
Abstract
The invention relates to an autofocusable microscope objective having an optical system of a plurality of optical components each formed by a lens or lens group. Here, one of the plurality of optical components is a liquid lens to effect autofocusing of the microscope objective, and the optical system is formed as a stationary system.
Claims20
An autofocusable microscope objective, comprising
- an optical system comprising a plurality of optical components each formed by a lens or lens group, and an aperture stop,
- wherein one of the plurality of optical components is a liquid lens to effect autofocusing of the autofocusable microscope objective by using the liquid lens to adjust the autofocusable microscope objective to a particular plane of focus in an automated manner,
- wherein the liquid lens is arranged in direct vicinity of the aperture stop,
- wherein the optical system comprises a stationary system in which a position of the plurality of optical components in the optical system remains unchanged, and
- wherein the autofocusable microscope objective is configured such that focusing in a range of at least +/−20 wave-optical depths of field is effected by a refractive power variation of the liquid lens in a range between −2.2 and +2.2 diopters.
2 more elements
A microscope comprising:
- an autofocusable microscope objective, comprising:
- an optical system comprising a plurality of optical components each formed by a lens or lens group, and an aperture stop,
- wherein one of the plurality of optical components is a liquid lens to effect autofocusing of the autofocusable microscope objective by using the liquid lens to adjust the autofocusable microscope objective to a particular plane of focus in an automated manner,
- wherein the liquid lens is arranged in direct vicinity of the aperture stop, and the optical system comprises a stationary system in which a position of the plurality of optical components in the optical system remains unchanged, and
- wherein the autofocusable microscope objective is configured such that focusing in a range of at least +/−20 wave-optical depths of field is effected by a refractive power variation of the liquid lens in a range between −2.2 and +2.2 diopters.
2 more elements
Dependencies are inferred from the claim text.