Illuminating device for a stereo microscope
First Claim
1. Illuminating device for a stereo microscope having imaging optics including an objective with variable imaging focal intercepts, comprising:
- an optical system separate from said imaging optics for illuminating an object, said optical system providing an illuminating focal intercept variation,said optical system being coupled to said imaging optics such that said illuminating focal intercept is in agreement with said imaging focal intercept of said objective.
1 Assignment
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Accused Products
Abstract
An illuminating device for a stereo microscope having an objective with variable imaging focal intercept includes first coupling mechanism, which effects a coupling between the imaging focal intercept of the objective and the likewise adjustable focal intercept of the illuminating optical system, separate from the observation optics, in such a manner that the illuminating focal intercept is in agreement with the imaging focal intercept of the objective. Moreover, adjusting mechanism is provided for the defined adjustment of the diameter of the illuminated field. In particular, the illuminating device is suitable for a surgical microscope.
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Citations
13 Claims
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1. Illuminating device for a stereo microscope having imaging optics including an objective with variable imaging focal intercepts, comprising:
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an optical system separate from said imaging optics for illuminating an object, said optical system providing an illuminating focal intercept variation, said optical system being coupled to said imaging optics such that said illuminating focal intercept is in agreement with said imaging focal intercept of said objective. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Illuminating device for a stereo microscope having imaging optics including an objective with variable imaging focal intercepts, comprising:
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an optical system separate from said imaging optics for illuminating an object, said optical system providing an illuminating focal intercept variation, said optical system being coupled to said imaging optics such that said illuminating focal intercept is in agreement with said imaging focal intercept of said objective, a fiber optic light guide, at least one illuminated field diaphragm arranged in front of said fiber optic light guide on its exit side, said optical system being arranged in front of said fiber optic light guide on its exit side and having at least one displaceable optical element that is displaceable along an optical axis for adjustment of said illuminating focal intercept, said optical system including a first and a second lens group which effect an imaging of said illuminated field diaphragm to infinity, followed by a third and fourth lens group, which effect focusing of said illuminated field diaphragm in an object plane, said third lens group comprising said displaceable optical element, said objective comprising displaceable objective elements, and a drive unit for said displaceable objective elements, said first coupling means including a worm and a worm wheel connected thereto, said worm wheel being arranged to be driven by said drive unit to convert rotary motion into an axial motion of said worm wheel, said third lens group of said optical system being connected to said worm wheel.
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8. Illuminating device for a stereo microscope having imaging optics including an objective with variable imaging focal intercepts comprising:
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an optical system separate from said imaging optics for illuminating an object, said optical system providing an illuminating focal intercept variation, said optical system being coupled to said imaging optics such that said illuminating focal intercept is in agreement with said imaging focal intercept of said objective, a fiber optic light guide, at least one illuminated field diaphragm arranged in front of said fiber optic light guide on its exit side, said optical system being arranged in front of said fiber optic light guide on its exit side and having at least one displaceable optical element that is displaceable along an optical axis for adjustment of said illuminating focal intercept, and a deflecting element following said optical system in a beam propagation direction, said deflecting element being arranged to deflect an illuminating beam path beneath said objective in a direction of an object plane and to deflect said illuminating beam path at different angles relative to an optical axis of imaging beam paths, wherein variable angular position of said deflecting element is coupled to said variable imaging focal intercepts of said objective such that there always exists a defined spatial relationship between a visual field and an illuminated field in said object plane. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification