Transmitted-light illumination device for a microscope
AssigneeLeica Microsystems Wetzlar GmbH
InventorsRalf Kruger, Peter Euteneuer
Life of this patent
Estimating the term…
Abstract
The present invention concerns a microscope and an illumination device for a microscope that ensure optimal illumination in the standard (10×-100×), scanning (1.6×-5×), and macro (1×-1.6×) ranges. The illumination system comprises only one condenser head that can be switched in or out and that can optimally illuminate the entire range from 1× to 100×, and a movably arranged focusing lens that ensures optimal adaptation of the illumination to the entrance pupil for all ranges.
Claims25
A transmitted-light illumination device for a microscope, comprising:
- a light source configured to generate an illuminating light beam incident onto an object plane of an object to be imaged with the microscope, said illuminating light beam defining an optical axis;
- a collector lens;
- a field diaphragm;
- an aperture diaphragm;
- exactly one condenser lens system, said condenser lens system configured to be switchable into and out of the illuminating light beam;
- and
- a focusing lens positioned between said field diaphragm and said aperture diaphragm, said focusing lens configured to be displaceable along the optical axis.
A microscope having a transmitted-light illumination device, comprising:
- a light source configured to generate an illuminating light beam incident onto an object plane of an object to be imaged with the microscope, said illuminating light beam defining an optical axis;
- a collector lens;
- a field diaphragm;
- an aperture diaphragm;
- exactly one condenser lens system, said condenser lens system configured to be switchable into and out of the illuminating light beam;
- and
- a focusing lens positioned between said field diaphragm and said aperture diaphragm, said focusing lens configured to be displaceable along the optical axis.
A microscope having a transmitted-light illumination device, comprising:
- a light source configured to generate an illuminating light beam incident onto an object plane of an object to be imaged with the microscope, said illuminating light beam defining an optical axis;
- a collector lens;
- a field diaphragm;
- an aperture diaphragm;
- a condenser lens system, said condenser lens system configured to be switchable into and out of the illuminating light beam;
- and
- a focusing lens positioned between said field diaphragm and said aperture diaphragm, said focusing lens configured to be displaceable along the optical axis,
- wherein the illumination device is configured so that:
- a) an illumination of said object plane corresponding to an objective magnification range of approximately 10× to 100× is provided when said condenser lens system is switched into the illuminating beam path;
- and b) an illumination of said object plane corresponding to an objective magnification range of approximately 1× to 5× is provided when said condenser lens system is switched out of the illuminating beam path.
A microscope having a transmitted-light illumination device, comprising:
- a light source configured to generate an illuminating light beam incident onto an object plane of an object to be imaged with the microscope, said illuminating light beam defining an optical axis;
- a collector lens;
- a field diaphragm;
- an aperture diaphragm;
- a condenser lens system, said condenser lens system configured to be switchable into and out of the illuminating light beam;
- and
- a focusing lens positioned between said field diaphragm and said aperture diaphragm, said focusing lens configured to be displaceable along the optical axis,
- wherein the illumination device is configured so that:
- a) an illumination of said object plane corresponding to an objective magnification range of approximately 10× to 100× is provided when said condenser lens system is switched into the illuminating beam path;
- and b) an illumination of said object plane corresponding to an objective magnification range of approximately 1× to 5× is provided when said condenser lens system is switched out of the illuminating beam path, and
- wherein said aperture diaphragm and said field diaphragm exchange their optical functions when said condenser lens system is switched out of the illuminating beam path.
Dependencies are inferred from the claim text.