Obrebski
Andreas Obrebski, Dusseldorf DE
Patent application number | Description | Published |
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20090168166 | Stereoscopic Optical System And Method For Production Of A Stereoscopic Optical System - The invention relates to a stereoscopic optical system ( | 07-02-2009 |
20110063736 | IMAGING OPTICS WITH ADJUSTABLE OPTICAL POWER AND METHOD OF ADJUSTING AN OPTICAL POWER OF AN OPTICS - The invention relates to optics comprising adjustable optical elements and, if desired, lenses of fixed focal lens. By use of an appropriate controller for the adjustable optical elements, characteristics of the optics can be advantageously varied. For this purpose, systems are provided which are suitable for use as surgical stereo-microscope, objective, ocular or zoom. A zoomable imaging optics comprises lenses and of variable optical power, which are oppositely controlled by means of a controller to change an imaging ratio, so that the optical power of the one lens is increased and the optical power of the other lens is decreased. Moreover, the imaging optics may comprise still further assemblies of fixed optical power. | 03-17-2011 |
20110299174 | CHANGER FOR OPTICAL ELEMENTS - A changer includes an axis of rotation for at least one optical element for at least one optical path comprising an optical axis. The changer inserts the optical element into the optical path by a rotary motion or removes it from the optical path. The optical path is one of at least two spatially connected optical paths and the axis of rotation of the changer is located between two parallel lines. The parallel lines run in a plane through the interfaces of the optical axes of the optical paths with one plane, which intersects the optical axes under the same angles and is perpendicular to the plane, which is spanned by the optical axes. The parallel lines are perpendicular to the connecting line between the two interfaces of the optical axes of the optical paths with the one plane, which intersects the optical axes under the same angles. | 12-08-2011 |
Andreas Obrebski, Duesseldorf DE
Patent application number | Description | Published |
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20090021843 | IMAGING OPTICS WITH ADJUSTABLE OPTICAL POWER AND METHOD OF ADJUSTING AN OPTICAL POWER OF AN OPTICS - The invention relates to optics comprising adjustable optical elements and, if desired, lenses of fixed focal lens. By use of an appropriate controller for the adjustable optical elements, characteristics of the optics can be advantageously varied. For this purpose, systems are provided which are suitable for use as surgical stereo-microscope, objective, ocular or zoom. A zoomable imaging optics comprises lenses and of variable optical power, which are oppositely controlled by means of a controller to change an imaging ratio, so that the optical power of the one lens is increased and the optical power of the other lens is decreased. Moreover, the imaging optics may comprise still further assemblies of fixed optical power. | 01-22-2009 |
20100238541 | STEREO-EXAMINATION SYSTEMS WITH IMAGE ROTATION - A stereo-examination system including an objective arrangement configured to receive an object-side beam bundle emanating from the object plane and to convert the object-side beam bundle into an image-side beam bundle and a selection arrangement configured to select at least one pair of partial beam bundles from the image side beam bundle. The system also includes an image transmission apparatus configured to generate stereoscopic images of an object positionable in the object plane from the at least one pair of partial beam bundles and an illumination arrangement. The illumination arrangement includes a light source, a beam coupler to superpose a beam cross-section of the illumination beam with the image-side beam bundle, and a field of a plurality of state-changing elements. The elements are selectively switchable between a first state directed and a second state in which light of the illumination beam is and is not directed to the object plane. | 09-23-2010 |
Andreas Obrebski, Oberkochen DE
Patent application number | Description | Published |
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20080204660 | Ophthalmoscopic attachment module and surgical microscope having an ophtalmoscopic attachment module - An opthalmoscopic attachment module ( | 08-28-2008 |
20080218695 | Optical device, use of an optical device according to the invention as well as method for blocking light reflections in the observation beam path of an optical device - The invention relates to an optical device for the examination of an eye, with at least one objective disposed facing the eye, at least one lighting source for illuminating the eye, an optical element and/or an optical arrangement disposed between the objective and the eye being examined, which optical element or arrangement produces an intermediate image of the plane examined within the eye, which is observed with the objective, whereby in the observation beam path of the optical device, at least one locally resolved attenuating element is disposed, which can be switched in a locally resolved manner into at least two transparency states. In addition, the invention relates to a method for blocking light reflections in the observation beam path of an optical device as well as the use of such an optical device for examining an eye. | 09-11-2008 |
20130201551 | OPTICAL ARRANGEMENT FOR CHANGING A MAGNIFICATION OR A REFRACTIVE POWER - Optical arrangement for varying a magnification or a refractive power in an optical path, wherein this optical arrangement as a whole encompasses at least two different possible magnifications or refractive powers, comprising a first optical element having a refractive power and a second optical element having a refractive power, characterized in that this optical arrangement comprises at least one optical switch, wherein the first optical element having a refractive power and the second optical element have a refractive power are spaced apart from one another. | 08-08-2013 |
Andreas Obrebski, Düsseldorf DE
Patent application number | Description | Published |
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20090168166 | Stereoscopic Optical System And Method For Production Of A Stereoscopic Optical System - The invention relates to a stereoscopic optical system ( | 07-02-2009 |
Jan Wojciech Obrebski, Eindhoven NL
Patent application number | Description | Published |
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20160044756 | CIRCUIT ARRANGEMENT FOR CONTROLLING A LED UNIT AND METHOD OF OPERATING THE SAME - A circuit arrangement ( | 02-11-2016 |