Patents by Inventor Jörg Sprenger
Jörg Sprenger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220187585Abstract: Apochromatic microscope objective (1) with a focal length f?(Obj), comprising a front lens (L1) made of a high refractive index material, a second lens (L2) which is arranged adjacent to the front lens and which has a thickness (d2) at least as great as a thickness (d1) of the front lens (L1), d2?d1, and at least one cemented group (Gi), wherein the last cemented group (G1) in the beam path of the microscope objective (1) has a converging cemented surface (FK) with a cemented radius (rK) ranging from ?0.95 f?(Obj) to ?0.75 f?(Obj).Type: ApplicationFiled: December 14, 2021Publication date: June 16, 2022Inventor: Jörg Sprenger
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Patent number: 10935774Abstract: An immersion objective having a highly refractive single front lens and, immediately adjacent a beam waist, a cemented triplet group with a focal length less than or equal to ?1.5 times the focal length of the immersion objective.Type: GrantFiled: October 10, 2018Date of Patent: March 2, 2021Assignee: Carl Zeiss Microscopy GmbHInventor: Jörg Sprenger
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Publication number: 20190107701Abstract: An immersion objective having a highly refractive single front lens and, immediately adjacent a beam waist, a cemented triplet group with a focal length less than or equal to ?1.5 times the focal length of the immersion objective.Type: ApplicationFiled: October 10, 2018Publication date: April 11, 2019Applicant: Carl Zeiss Microscopy GmbHInventor: Jörg Sprenger
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Patent number: 9151936Abstract: The invention relates to an optical inspecting system designed to image an object to be inspected with a variable imaging scale, comprising a variation system for imaging the object into infinity, a lens group downstream of the variation system for imaging the object from infinity into the image plane of the whole system, and a light source for generating light in order to illuminate the object, means for imaging the illuminating light into the exit pupil of the variation system being provided in the airspace between the fifth lens group and the subsequent lens group. Of the five lens groups of the variation system, the first, second, and fourth lens groups, when seen in the imaging direction, are arranged in a movable manner in the direction of the optical axis, whereas the third and fifth lens groups are not movable.Type: GrantFiled: November 7, 2011Date of Patent: October 6, 2015Assignee: Carl Zeiss Microscopy GmbHInventors: Rolf Wartmann, Kerstin Winkler, Joerg Sprenger
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Patent number: 8958159Abstract: A wide range zoom system, for microscopes. The zoom system includes five lens groups, of which, starting at the object side, the second and fourth lens group are displaceable in the axial direction relative to the first, third and fifth lens group. A stop of variable opening diameter that is stationary relative to the first, third and fifth lens group is provided between the second and fourth lens group, wherein the maximum opening diameter of said stop is in middle zoom magnifications. As magnification increases, the object-side aperture increases non-linearly in relation to the magnification, such that in regions of low magnifications the object-side aperture increases more sharply than in regions of higher magnifications.Type: GrantFiled: June 17, 2011Date of Patent: February 17, 2015Assignee: Carl Zeiss Microscopy GmbHInventors: Michael Wacke, Joerg Sprenger
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Publication number: 20130308201Abstract: The invention relates to an optical inspecting system designed to image an object to be inspected with a variable imaging scale, comprising a variation system for imaging the object into infinity, a lens group downstream of the variation system for imaging the object from infinity into the image plane of the whole system, and a light source for generating light in order to illuminate the object, means for imaging the illuminating light into the exit pupil of the variation system being provided in the airspace between the fifth lens group and the subsequent lens group. Of the five lens groups of the variation system, the first, second, and fourth lens groups, when seen in the imaging direction, are arranged in a movable manner in the direction of the optical axis, whereas the third and fifth lens groups are not movable.Type: ApplicationFiled: November 7, 2011Publication date: November 21, 2013Applicant: CARL ZEISS MICROSCOPY GMBHInventors: Rolf Wartmann, Kerstin Winkler, Joerg Sprenger
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Publication number: 20130242407Abstract: A wide range zoom system, for microscopes. The zoom system includes five lens groups, of which, starting at the object side, the second and fourth lens group are displaceable in the axial direction relative to the first, third and fifth lens group. A stop of variable opening diameter that is stationary relative to the first, third and fifth lens group is provided between the second and fourth lens group, wherein the maximum opening diameter of said stop is in middle zoom magnifications. As magnification increases, the object-side aperture increases non-linearly in relation to the magnification, such that in regions of low magnifications the object-side aperture increases more sharply than in regions of higher magnifications.Type: ApplicationFiled: June 17, 2011Publication date: September 19, 2013Applicant: CARL ZEISS MICROSCOPY GMBHInventors: Michael Wacke, Joerg Sprenger
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Publication number: 20110069380Abstract: A variable microscope system, which, beginning at the object plane, includes a main lens system, a zoom lens system consisting of several lens groups, and a relay system connected in series to the zoom lens system. In the microscope system, according to the invention, at least one main lens system for infinite mapping of an object is provided and the zoom lens system is designed in such a way that the infinite beam path from the lens system is mapped in an intermediate image, wherein an aperture collimation is provided in a subsequently positioned relay system. An advantage of the microscope system, according to the invention, versus prior art lies in an improved eye pupil adjustment to the illumination as well as to the observation of samples with the contrast method.Type: ApplicationFiled: September 20, 2010Publication date: March 24, 2011Applicant: CARL ZEISS MICROIMAGING GMBHInventor: Jörg Sprenger
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Patent number: 7522336Abstract: An adjustable microscope tube for a microscope includes, in this order, along its beam path coming from an entrance to the microscope tube: an optical system, which images a first intermediate image to infinity; at least one deflecting element, which folds the parallel beam path following the optical system, and collecting optics, arranged following the deflecting element in the beam path, for imaging the first intermediate image, which has been imaged to infinity, onto a second intermediate image, wherein the length of at least one portion of the folded, parallel beam path can be changed by displacement of the deflecting element relative to the optical system.Type: GrantFiled: September 30, 2005Date of Patent: April 21, 2009Assignee: Carl Zeiss MicroImaging GmbHInventors: Andreas Hermann, Joerg Sprenger, Hubert Wahl
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Patent number: 7133212Abstract: The invention is directed to an immersion microscope objective. This microscope objective contains four lens groups. The first lens group has a focal length of 2.6f–3.1f, where f is the total focal length of the microscope objective. The first lens group contains two lens components with a collecting effect. The first lens component has a focal length of 3f–4.5f. One of the lenses in the first lens component is made from a material with n greater than 1.72. A lens of the second lens component is made from a material with a partial dispersion of a first type. The second lens group with a focal length of 8f–10.2f comprises at least two lenses which are cemented together. A collecting lens is made from a material with a partial dispersion of the first type, and a diverging lens is made from a material with a partial dispersion of a second type. There follows a third lens group with a focal length greater than |25f|.Type: GrantFiled: July 14, 2005Date of Patent: November 7, 2006Assignee: Carl Zeiss Jena GmbHInventors: Rolf Wartmann, Joerg Sprenger
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Publication number: 20060077539Abstract: An adjustable microscope tube (MT) for a microscope (T) comprises, in this order, along its beam path coming from an entrance to the microscope tube (MT): an optical system (S), which images a first intermediate image to infinity; at least one deflecting element (U1, U2), which folds the parallel beam path following the optical system (S), and collecting optics (SO), arranged following the deflecting element (U1, U2) in the beam path, for imaging the first intermediate image, which has been imaged to infinity, onto a second intermediate image, wherein the length of at least one portion (A1, A2) of the folded, parallel beam path can be changed by displacement of the deflecting element (U1, U2) relative to the optical system (S).Type: ApplicationFiled: September 30, 2005Publication date: April 13, 2006Inventors: Andreas Hermann, Joerg Sprenger, Hubert Wahl
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Publication number: 20060018030Abstract: The invention is directed to an immersion microscope objective. This microscope objective contains four lens groups. The first lens group has a focal length of 2.6f-3.1f, where f is the total focal length of the microscope objective. The first lens group contains two lens components with a collecting effect. The first lens component has a focal length of 3f-4.5f. One of the lenses in the first lens component is made from a material with n greater than 1.72. A lens of the second lens component is made from a material with a partial dispersion of a first type. The second lens group with a focal length of 8f-10.2f comprises at least two lenses which are cemented together. A collecting lens is made from a material with a partial dispersion of the first type, and a diverging lens is made from a material with a partial dispersion of a second type. There follows a third lens group with a focal length greater than |25f|.Type: ApplicationFiled: July 14, 2005Publication date: January 26, 2006Inventors: Rolf Wartmann, Joerg Sprenger