Patents by Inventor Dirk-Oliver Fehrer
Dirk-Oliver Fehrer 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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Patent number: 11237453Abstract: An optical assembly includes a volume grating configured to influence a beam direction of at least one light beam, and a switching device arranged in a beam path upstream of the volume grating. The switching device is configured to switch the beam direction and/or beam position of the at least one light beam from a first beam direction and/or beam position, in which the at least one light beam does not impinge on the volume grating at an acceptance angle of the volume grating, to a second beam direction and/or beam position, in which the at least one light beam impinges on the volume grating at the acceptance angle, and/or vice versa.Type: GrantFiled: December 22, 2017Date of Patent: February 1, 2022Assignee: LEICA MICROSYSTEMS CMS GMBHInventors: Manuel Kremer, Dirk-Oliver Fehrer, Lars Friedrich
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Publication number: 20210278651Abstract: A light sheet microscope includes: a detection objective configured to image a target region of a sample located in a focal plane of the detection objective; an illumination objective configured to focus an illumination light beam in the sample, the detection objective and the illumination objective being opposite to one another, and the optical axis of the detection objective and the optical axis of the illumination objective being parallel to one another; a first light deflection device having at least one first deflection surface and one second deflection surface, which are each arranged offset to the optical axis of the detection objective and are configured to deflect the illumination light beam focused by the illumination objective in a direction perpendicular to the optical axis of the detection objective such that a deflected illumination light beam forms a light-sheet-like illumination light distribution focused in the focal plane.Type: ApplicationFiled: November 12, 2019Publication date: September 9, 2021Applicant: Leica Microsystems CMS GmbHInventors: Werner KNEBEL, Florian FAHRBACH, Christof FRANKE, Dirk-Oliver FEHRER
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Publication number: 20190391460Abstract: An optical assembly includes a volume grating configured to influence a beam direction of at least one light beam, and a switching device arranged in a beam path upstream of the volume grating. The switching device is configured to switch the beam direction and/or beam position of the at least one light beam from a first beam direction and/or beam position, in which the at least one light beam does not impinge on the volume grating at an acceptance angle of the volume grating, to a second beam direction and/or beam position, in which the at least one light beam impinges on the volume grating at the acceptance angle, and/or vice versa.Type: ApplicationFiled: December 22, 2017Publication date: December 26, 2019Inventors: Manuel Kremer, Dirk-Oliver Fehrer, Lars Friedrich
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Patent number: 9348130Abstract: A device for holding filters for a microscope includes a filter wheel (20) rotatable about an axis of rotation (16) and a drive unit (14) for rotating the filter wheel (20). The filter wheel (20) comprises a basic body (44) rotatable about the axis of rotation (16) and at least one segment (46-54) selectively connectable to the basic body. The segment (46-54) comprises at least two housing areas (58, 59) each holding at least one filter (11). Another housing area may provide a transmission range (36, 59) for unfiltered transmission of light. A second rotatable filter wheel may be arranged at a location displaced along the axis of rotation relative to the filter wheel, and may have its own respective transmission range for unfiltered transmission of light, whereby a filter on either filter wheel may be aligned with the transmission range on the other filter wheel.Type: GrantFiled: June 13, 2014Date of Patent: May 24, 2016Assignee: Leica Microsystems CMS GmbHInventors: Ingo Böhm, Dirk-Oliver Fehrer
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Patent number: 8879135Abstract: A device for deflecting a light beam in two different directions includes a mirror and a first rotating actuator element configured to rotate about a first axis as a function of a first actuation signal. A second rotating actuator element is disposed opposite to the first rotating actuator element along the first axis and configured to rotate about the first axis as a function of a second actuation signal. A first spring element is connected to the first rotating actuator element and, off-axially with respect to the first axis at a predetermined first distance thereto, to the mirror in a rest position of the mirror. A second spring element is connected to the second rotating actuator element and to the mirror.Type: GrantFiled: August 27, 2010Date of Patent: November 4, 2014Assignee: Leica Microsystems CMS GmbHInventors: Dirk-Oliver Fehrer, Ingo Boehm
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Publication number: 20140293409Abstract: A device for holding filters for a microscope includes a filter wheel (20) rotatable about an axis of rotation (16) and a drive unit (14) for rotating the filter wheel (20). The filter wheel (20) comprises a basic body (44) rotatable about the axis of rotation (16) and at least one segment (46-54) selectively connectable to the basic body. The segment (46-54) comprises at least two housing areas (58, 59) each holding at least one filter (11). Another housing area may provide a transmission range (36, 59) for unfiltered transmission of light. A second rotatable filter wheel may be arranged at a location displaced along the axis of rotation relative to the filter wheel, and may have its own respective transmission range for unfiltered transmission of light, whereby a filter on either filter wheel may be aligned with the transmission range on the other filter wheel.Type: ApplicationFiled: June 13, 2014Publication date: October 2, 2014Inventors: Ingo Böhm, Dirk-Oliver Fehrer
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Patent number: 8844671Abstract: An apparatus for damping sound in the optical beam path of a microscope, having an acoustic insulation housing for encapsulating a sound-emitting component, preferably a rapidly moving or oscillating beam deflection means, in particular a resonantly oscillating mirror, the housing comprising at least one optical entrance/exit opening, is characterized in that the housing, preferably the opening of the housing, is embodied and/or configured in such a way that the sound otherwise emerging from the housing is largely extinguished by destructive interference without thereby influencing the optical beam. A microscope having a corresponding apparatus is furthermore claimed.Type: GrantFiled: May 15, 2013Date of Patent: September 30, 2014Assignee: Leica Microsystems CMS GmbHInventors: Holger Birk, Volker Seyfried, Dirk-Oliver Fehrer, Vishnu Varden Krishnamachari
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Patent number: 8786944Abstract: A device for holding filters for a microscope includes a filter wheel (20) rotatable about an axis of rotation (16) and a drive unit (14) for rotating the filter wheel (20). The filter wheel (20) comprises a basic body (44) rotatable about the axis of rotation (16) and at least one segment (46-54) selectively connectable to the basic body. The segment (46-54) comprises at least two housing areas (58, 59) each holding at least one filter (11). Another housing area may provide a transmission range (36, 59) for unfiltered transmission of light. A second rotatable filter wheel may be arranged at a location displaced along the axis of rotation relative to the filter wheel, and may have its own respective transmission range for unfiltered transmission of light, whereby a filter on either filter wheel may be aligned with the transmission range on the other filter wheel.Type: GrantFiled: March 23, 2012Date of Patent: July 22, 2014Assignee: Leica Microsystems CMS GmbHInventors: Ingo Böhm, Dirk-Oliver Fehrer
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Publication number: 20130306398Abstract: An apparatus for damping sound in the optical beam path of a microscope, having an acoustic insulation housing for encapsulating a sound-emitting component, preferably a rapidly moving or oscillating beam deflection means, in particular a resonantly oscillating mirror, the housing comprising at least one optical entrance/exit opening, is characterized in that the housing, preferably the opening of the housing, is embodied and/or configured in such a way that the sound otherwise emerging from the housing is largely extinguished by destructive interference without thereby influencing the optical beam. A microscope having a corresponding apparatus is furthermore claimed.Type: ApplicationFiled: May 15, 2013Publication date: November 21, 2013Applicant: Leica Microsystems CMS GmbHInventors: Holger BIRK, Volker SEYFRIED, Dirk-Oliver FEHRER, Vishnu Vardan KRISHNAMACHARI
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Publication number: 20120243079Abstract: A device for holding filters for a microscope includes a filter wheel (20) rotatable about an axis of rotation (16) and a drive unit (14) for rotating the filter wheel (20). The filter wheel (20) comprises a basic body (44) rotatable about the axis of rotation (16) and at least one segment (46-54) selectively connectable to the basic body. The segment (46-54) comprises at least two housing areas (58, 59) each holding at least one filter (11). Another housing area may provide a transmission range (36, 59) for unfiltered transmission of light. A second rotatable filter wheel may be arranged at a location displaced along the axis of rotation relative to the filter wheel, and may have its own respective transmission range for unfiltered transmission of light, whereby a filter on either filter wheel may be aligned with the transmission range on the other filter wheel.Type: ApplicationFiled: March 23, 2012Publication date: September 27, 2012Applicant: LEICA MICROSYSTEMS CMS GMBHInventors: Ingo Böhm, Dirk-Oliver Fehrer
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Publication number: 20120212790Abstract: A device for deflecting a light beam in two different directions includes a mirror and a first rotating actuator element configured to rotate about a first axis as a function of a first actuation signal. A second rotating actuator element is disposed opposite to the first rotating actuator element along the first axis and configured to rotate about the first axis as a function of a second actuation signal. A first spring element is connected to the first rotating actuator element and, off-axially with respect to the first axis at a predetermined first distance thereto, to the mirror in a rest position of the mirror. A second spring element is connected to the second rotating actuator element and to the mirror.Type: ApplicationFiled: August 27, 2010Publication date: August 23, 2012Applicant: LEICA MICROSYSTEMS CMS GMBHInventors: Dirk-Oliver Fehrer, Ingo Boehm
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Patent number: 7600926Abstract: Disclosed is a device for adjusting an optical fiber (1) or an optical fiber bundle relative to a coupling point. Said device comprises a holding apparatus (2) for the fiber/s (1) and a mechanism (3) for positioning the fiber/s (1) in said holding apparatus (2). The positioning mechanism (3) is provided with at least two positioning members (4) which act upon the fiber/s (1) at different angles, the position of the fiber/s (1) relative to the holding apparatus (2) being modifiable by actuating said at least two positioning members (4). The inventive device is characterized in that the positioning members (4) which are effective at different angles are disposed next to each other in the holding apparatus (2) in order to be actuated from one side while at least one of the positioning members (4) acts upon the fiber/s (1) via a lever assembly (5).Type: GrantFiled: September 12, 2005Date of Patent: October 13, 2009Assignee: Leica Microsystems CMS GmbHInventors: Dirk-Oliver Fehrer, Holger Birk
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Publication number: 20090022471Abstract: Disclosed is a device for adjusting an optical fiber (1) or an optical fiber bundle relative to a coupling point. Said device comprises a holding apparatus (2) for the fiber/s (1) and a mechanism (3) for positioning the fiber/s (1) in said holding apparatus (2). The positioning mechanism (3) is provided with at least two positioning members (4) which act upon the fiber/s (1) at different angles, the position of the fiber/s (1) relative to the holding apparatus (2) being modifiable by actuating said at least two positioning members (4). The inventive device is characterized in that the positioning members (4) which are effective at different angles are disposed next to each other in the holding apparatus (2) in order to be actuated from one side while at least one of the positioning members (4) acts upon the fiber/s (1) via a lever assembly (5).Type: ApplicationFiled: September 12, 2005Publication date: January 22, 2009Inventors: Dirk-Oliver Fehrer, Holger Birk
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Publication number: 20070252499Abstract: A scanning microscope, in particular a confocal scanning microscope, having: a scanning device (1), a detection device (2), an electronic system (3) for operating the scanning microscope, and a cooling device (4) for at least one component of the scanning microscope, is configured and refined, in the interest of efficient cooling, in such a way that the cooling device (4) is operable with a liquid cooling medium.Type: ApplicationFiled: October 18, 2005Publication date: November 1, 2007Applicant: Leica Microsystems CMS GmbHInventors: Holger Birk, Rafael Storz, Dirk-Oliver Fehrer, Claus Kress
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Publication number: 20070171502Abstract: A scanning microscope comprises a beam deflector with at least one movable deflector to adjust the deflection of a light beam. The scanning microscope is characterized in that the movable deflector is positioned in a largely soundproof housing with one entrance window and/or one exit window.Type: ApplicationFiled: October 18, 2005Publication date: July 26, 2007Applicant: Leica Microsystems CMS GmbHInventors: Holger Birk, Dirk-Oliver Fehrer, Michael Goldner
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Patent number: D660336Type: GrantFiled: July 13, 2011Date of Patent: May 22, 2012Assignee: Leica Microsystems CMS GmbHInventors: Dirk-Oliver Fehrer, Frank Schreiber
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Patent number: D669511Type: GrantFiled: September 23, 2011Date of Patent: October 23, 2012Assignee: Leica Microsystems CMS GmbHInventors: Ingo Boehm, Dirk-Oliver Fehrer
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Patent number: D673200Type: GrantFiled: August 9, 2012Date of Patent: December 25, 2012Assignee: Leica Microsystems CMS GmbHInventors: Ingo Boehm, Dirk-Oliver Fehrer