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US 8,009,352 B2Granted
Microscope with centered illumination
AssigneeLeica Instruments (Singapore) Pte. Ltd.
InventorHaw Chong Soon
Life of this patent
Estimating the term…
Abstract
A microscope comprising a main objective having a variable focal length and comprising an illuminating unit including a light source and an illuminating optical system for generating an illuminating beam path directed onto the object plane and extending outside the main objective. A unit is provided for centering the illumination dependent on a variation of the focal length of the main objective. The illuminating optical system is mounted at least in part in a laterally shiftable manner for centering the illumination.
Claims26
A microscope comprising:
- a main objective having a variable focal length;
- an illuminating unit comprising a light source and an illuminating optical system for generating an illuminating beam path directed onto an object plane and extending outside the main objective;
- and
- means for centering the illumination dependent on various focal lengths of the main objective;
- wherein
- the illuminating optical system is at least in part mounted in a laterally shiftable manner for centering the illumination;
- the illuminating unit has as an illuminating optical system a collector, a diaphragm, an illumination deflector element as well as a lens assembly for focusing the illuminating beam path onto the object plane;
- and
- the symmetrical axis of the lens assembly is aligned perpendicular to the object plane.
6 more elements
A microscope comprising:
- a main objective having a variable focal length;
- an illuminating unit comprising a light source and an illuminating optical system for generating an illuminating beam path directed onto an object plane and extending outside the main objective;
- and
- means for centering the illumination dependent on various focal lengths of the main objective;
- wherein
- the illuminating optical system is at least in part mounted in a laterally shiftable manner for centering the illumination;
- the illuminating unit has as an illuminating optical system a collector, a diaphragm, an illumination deflector element as well as a lens assembly for focusing the illuminating beam path onto the object plane;
- and
- the symmetrical axis of the lens assembly is aligned parallel to the axis (Ri) of the illuminating beam path.
6 more elements
Dependencies are inferred from the claim text.