Patents by Inventor Hans-Jurgen Dobschal
Hans-Jurgen Dobschal 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).
-
Patent number: 10299674Abstract: The invention relates to mobile computer devices, front-mounted optical systems and computer program products allowing perimetry measurement.Type: GrantFiled: September 22, 2015Date of Patent: May 28, 2019Assignees: Carl Zeiss Meditec AG, Carl Zeiss Meditec, Inc.Inventors: Nico Correns, Hans-Jürgen Dobschal, Elke Machalett
-
Publication number: 20170290505Abstract: The invention relates to mobile computer devices, front-mounted optical systems and computer program products allowing perimetry measurement.Type: ApplicationFiled: September 22, 2015Publication date: October 12, 2017Applicants: Carl Zeiss Meditec AG, Carl Zeiss Meditec, Inc.Inventors: Nico Correns, Hans-Jürgen Dobschal, Elke Machalett
-
Patent number: 9703018Abstract: The invention relates to a lens which has an extended range of focus, wherein the lens consists of a solid material, the optical surfaces of the lens are transparent and the lens has a focal power distribution. According to the invention, the focal power distribution FG of the lens (1), in relation to a plane perpendicular to the optical axis (10), changes as a function of the radial height r and of the azimuth angle phi of the aperture between a base value of the focal power FL not equal to zero and a maximum value FSmax. Hence, the focal power distribution emerges as FG(r,phi)=FL+FS(r,phi), with the spiral focal power component FS(r,phi)=FSmax(r)*w(phi), where FSmax(r) depends nonlinearly on the radius and w(phi) is a factor for the focal power component with a spiral profile.Type: GrantFiled: May 16, 2012Date of Patent: July 11, 2017Assignee: CARL ZEISS AGInventor: Hans-Jürgen Dobschal
-
Patent number: 9389120Abstract: Laser scanning microscope or spectral detector having a detection beam path and first imaging optics which image spectrally dispersed sample light in a Fourier plane such that the individual spectral components of the sample light are spatially separated from one another therein. A micromirror arrangement is provided in this plane, and a spectrally selective change in direction of the detection beam is carried out by controlling the micromirrors, where a useful light component of the detection beam arrives on a detector. At least one second micromirror arrangement and a 1:1 imaging of the first micromirror arrangement in the second micromirror arrangement is provided. Alternatively, the same micromirror arrangement is passed at least twice, where, in the light path between the first pass and second pass, a spatial offset of the light beam of at least the first pass and second pass is generated on the micromirror arrangement by optical means.Type: GrantFiled: August 28, 2010Date of Patent: July 12, 2016Assignee: Carl Zeiss Microscopy GmbHInventors: Jakow Konradi, Daniel Schwedt, Enrico Geissler, Günter Rudolph, Hans-Jürgen Dobschal
-
Patent number: 9265658Abstract: An optical contact element for coupling a laser processing device to an object to be processed is described, wherein the laser processing device focuses a scanned laser beam through a surface of the object into a certain region of the object and the contact element comprises an entrance side for receiving the scanned laser radiation and an exit side imparting a defined surface curvature to the surface of the object upon contact therewith, wherein a diffractive optical element is provided on the entrance side, which element reduces the angle of incidence of the laser radiation on the surface of the object.Type: GrantFiled: January 25, 2005Date of Patent: February 23, 2016Assignee: Carl Zeiss Meditec AGInventors: Hans-Jürgen Dobschal, Marco Hanft, Mario Gerlach
-
Patent number: 9134535Abstract: A display device includes a holding device that can be placed on the head of a user. An image-generating module and an imaging lens system can be secured on the holding device. The latter includes a spectacle lens with a curved front and a curved back. It projects the image generated when the holding device is placed on the head such that the user can perceive it superimposed on the surroundings. Light from the image-generating module is coupled into an optical channel in the spectacle lens. It is conducted in the optical channel to an exit section and coupled via the exit section out of the spectacle lens. The optical channel includes in the region of the front and back a Fresnel structure with a plurality of facets on which the light conducted in the optical channel is reflected, and which are aligned parallel to one another.Type: GrantFiled: July 21, 2011Date of Patent: September 15, 2015Assignee: Carl Zeiss AGInventors: Hans-Jürgen Dobschal, Karsten Lindig, Guenter Rudolph
-
Publication number: 20140293426Abstract: The invention relates to a lens which has an extended range of focus, wherein the lens consists of a solid material, the optical surfaces of the lens are transparent and the lens has a focal power distribution. According to the invention, the focal power distribution FG of the lens (1), in relation to a plane perpendicular to the optical axis (10), changes as a function of the radial height r and of the azimuth angle phi of the aperture between a base value of the focal power FL not equal to zero and a maximum value FSmax. Hence, the focal power distribution emerges as FG(r,phi)=FL+FS(r,phi), with the spiral focal power component FS(r,phi)=FSmax(r)*w(phi), where FSmax(r) depends nonlinearly on the radius and w(phi) is a factor for the focal power component with a spiral profile.Type: ApplicationFiled: May 16, 2012Publication date: October 2, 2014Applicant: CARL ZEISS AGInventor: Hans-Jürgen Dobschal
-
Publication number: 20130215516Abstract: A display device includes a holding device that can be placed on the head of a user. An image-generating module and an imaging lens system can be secured on the holding device. The latter includes a spectacle lens with a curved front and a curved back. It projects the image generated when the holding device is placed on the head such that the user can perceive it superimposed on the surroundings. Light from the image-generating module is coupled into an optical channel in the spectacle lens. It is conducted in the optical channel to an exit section and coupled via the exit section out of the spectacle lens. The optical channel includes in the region of the front and back a Fresnel structure with a plurality of facets on which the light conducted in the optical channel is reflected, and which are aligned parallel to one another.Type: ApplicationFiled: July 21, 2011Publication date: August 22, 2013Inventors: Hans-Jürgen Dobschal, Karsten Lindig, Guenter Rudolph
-
Publication number: 20120218547Abstract: Laser scanning microscope or spectral detector having a detection beam path and first imaging optics which image spectrally dispersed sample light in a Fourier plane such that the individual spectral components of the sample light are spatially separated from one another therein. A micromirror arrangement is provided in this plane, and a spectrally selective change in direction of the detection beam is carried out by controlling the micromirrors, where a useful light component of the detection beam arrives on a detector. At least one second micromirror arrangement and a 1:1 imaging of the first micromirror arrangement in the second micromirror arrangement is provided. Alternatively, the same micromirror arrangement is passed at least twice, where, in the light path between the first pass and second pass, a spatial offset of the light beam of at least the first pass and second pass is generated on the micromirror arrangement by optical means.Type: ApplicationFiled: August 28, 2010Publication date: August 30, 2012Inventors: Jakow Konradi, Daniel Schwedt, Enrico Geissler, Günter Rudolph, Hans-Jürgen Dobschal
-
Patent number: 7855831Abstract: A microscope objective including an front optical element, a plurality of optical elements spaced apart from the front element and from each other, as well as an adjusting unit. At least one of the optical elements can be displaced along the optical axis by the adjusting unit to adjust the focus of the objective. The focus of the objective is displaced relative to the front element along the optical axis and/or a temperature-induced imaging error of the objective is compensated for.Type: GrantFiled: July 21, 2006Date of Patent: December 21, 2010Assignee: Carl Zeiss Microlmaging GmbHInventors: Ralf Wolleschensky, Hans-Jürgen Dobschal
-
Patent number: 7796329Abstract: A sighting device couples a sight mark into a viewing beam path and is especially for a handheld weapon (2), a bow or a pump gun. The sighting device includes an optical component (6) having a first optical coupling element (8) for coupling the sight mark from a sight mark source into the component (6) and having a second optical coupling element in the region of the viewing beam path for coupling the sight mark (14) out of the component (6) and into the viewing beam path. The second optical coupling element is configured as a diffractive structure (9). The optical component (6) is configured to be totally reflective for guiding the sight mark beam in the interior of the optical component and is at least partially transmissive for the viewing beam paths in the region of the viewing beam path. In this way, a compact and lightweight illuminated sight is provided.Type: GrantFiled: August 8, 2008Date of Patent: September 14, 2010Assignees: Carl Zeiss AG, Carl Zeiss Sports Optics GmbHInventors: Hans-Jürgen Dobschal, Jörn Greif-Wüstenbecker, Stephan Albrecht
-
Patent number: 7561338Abstract: A microscope objective system including an objective, which includes an illumination beam path via which illumination radiation from a source is directed onto an object to be examined, as well as a partial detection beam path surrounding at least part of the illumination beam path and, together with the illumination beam path, forms a detection beam path via which radiation to be detected and coming from the sample is guided towards a detector.Type: GrantFiled: July 21, 2006Date of Patent: July 14, 2009Assignee: Carl Zeiss MicroImaging GmbHInventors: Ralf Wolleschensky, Hans-Jürgen Dobschal, Robert Brunner
-
Publication number: 20090051989Abstract: A sighting device couples a sight mark into a viewing beam path and is especially for a handheld weapon (2), a bow or a pump gun. The sighting device includes an optical component (6) having a first optical coupling element (8) for coupling the sight mark from a sight mark source into the component (6) and having a second optical coupling element in the region of the viewing beam path for coupling the sight mark (14) out of the component (6) and into the viewing beam path. The second optical coupling element is configured as a diffractive structure (9). The optical component (6) is configured to be totally reflective for guiding the sight mark beam in the interior of the optical component and is at least partially transmissive for the viewing beam paths in the region of the viewing beam path. In this way, a compact and lightweight illuminated sight is provided.Type: ApplicationFiled: August 8, 2008Publication date: February 26, 2009Inventors: Hans-Jurgen Dobschal, Jorn Greif-Wustenbecker, Stephen Albrecht
-
Publication number: 20070179478Abstract: An optical contact element for coupling a laser processing device to an object to be processed is described, wherein the laser processing device focuses a scanned laser beam through a surface of the object into a certain region of the object and the contact element comprises an entrance side for receiving the scanned laser radiation and an exit side imparting a defined surface curvature to the surface of the object upon contact therewith, wherein a diffractive optical element is provided on the entrance side, which element reduces the angle of incidence of the laser radiation on the surface of the object.Type: ApplicationFiled: January 25, 2005Publication date: August 2, 2007Inventors: Hans-Jürgen Dobschal, Marco Hanft, Mario Gerlach
-
Publication number: 20070139763Abstract: A microscope objective including an front optical element, a plurality of optical elements spaced apart from the front element and from each other, as well as an adjusting unit. At least one of the optical elements can be displaced along the optical axis by the adjusting unit to adjust the focus of the objective. The focus of the objective is displaced relative to the front element along the optical axis and/or a temperature-induced imaging error of the objective is compensated for.Type: ApplicationFiled: July 21, 2006Publication date: June 21, 2007Applicant: CARL ZEISS MICROIMAGING GMBHInventors: Ralf Wolleschensky, Hans-Jurgen Dobschal
-
Publication number: 20070133093Abstract: In imaging optics with main optics having several optical elements, and in which the main optics are corrected for an observation radiation, there is further provided a transmissive, diffractive element, which is arranged and provided in the observation beam path of the imaging optics such that, due to the diffractive effect of the diffractive element, at least one aberration of the main optics is corrected for an inspection radiation having a different wavelength than that of the observation radiation.Type: ApplicationFiled: September 19, 2003Publication date: June 14, 2007Inventors: Hans-Jurgen Dobschal, Robert Brunner, Reinhard Steiner, Knut Hage, Klaus Rudolf
-
Publication number: 20070070502Abstract: The invention relates to an imaging system in which a diffractive optical element is used by both the illumination beam path and the imaging beam path. Said diffractive element operates in the reflection mode or transmission mode according to the specifications of the system design. At least one of the imaging optical elements provided in the beam path of the inventive diffractive beam splitter for imaging systems is used for both the illumination beam path and the imaging beam path. Said element represents a diffractive optical element (DOE) and requires no spatial separation between the imaging beam path and the illumination beam path in the object space by using different diffraction arrays. The number of reflective optical elements can be decreased by using diffractive optical elements, resulting in the cost of the system being reduced and the service life of the optical components being increased by using a low-power EUV source.Type: ApplicationFiled: April 20, 2004Publication date: March 29, 2007Inventors: Robert Brunner, Hans-Jurgen Dobschal, Jorn Greif-Wustenbecker, Norbert Rosenkranz, Thomas Scherubl
-
Publication number: 20070058262Abstract: A microscope objective system is provided, comprising an objective (3), which comprises an illumination beam path via which illumination radiation from a source (2) is directed onto an object (7) to be examined, as well as a partial detection beam path surrounding at least part of the illumination beam path and, together with the illumination beam path, forms a detection beam path via which radiation to be detected and coming from the sample (7) is guided towards a detector (6).Type: ApplicationFiled: July 21, 2006Publication date: March 15, 2007Applicant: CARL ZEISS MICROIMAGING GMBHInventors: Ralf Wolleschensky, Hans-Jürgen Dobschal, Robert Brunner
-
Publication number: 20040196460Abstract: In a measurement arrangement comprising an optical device, into which a diverging beam coming from a specimen is coupled for measurement, and further comprising a detector, which is arranged following said optical device and comprises a multiplicity of detector pixels arranged in one plane and evaluable independently of each other, wherein the optical device spectrally disperses the diverging beam in a first direction transversely of the propagation direction of the beam and directs it to the detector, the optical device also parallels the beam, before it impinges on the detector, in a second direction transversely of the propagation direction (C) such that rays of the beam impinging on the detector, which are adjacent to each other in the second direction, extend parallel to each other.Type: ApplicationFiled: April 12, 2004Publication date: October 7, 2004Inventors: Hans-Jurgen Dobschal, Gunter Machke, Jorg Bischoff
-
Publication number: 20040174607Abstract: In an objective (1), in particular a microscope objective, said objective comprising an object-side first optical group (5) with a positive refractive power, and a second optical group (6), arranged following the first optical group (5), with a negative refractive power, and said first optical group (5) including several refractive elements (7, 8, 9, 10), the first optical group (5) comprises at least one diffractive element (11) having a refraction-enhancing and achromatizing effect.Type: ApplicationFiled: December 18, 2003Publication date: September 9, 2004Inventors: Robert Brunner, Knut Hage, Hans-Jurgen Dobschal, Klaus Rudolf, Reinhard Steiner