Patents Assigned to Carl Zeiss Jena GmbH
  • Patent number: 11841683
    Abstract: A hologram for an illumination device for vehicles and a corresponding illumination device are provided. The hologram has a plurality of holographic structures designed for a respectively associated wavelength, wherein the holographic structures have diffraction properties that are identical among one another.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: December 12, 2023
    Assignee: Carl Zeiss Jena GmbH
    Inventor: Daniel Thomae
  • Patent number: 11790510
    Abstract: The invention relates to techniques for material testing of optical test pieces, for example of lenses. Angle-variable illumination, using a suitable illumination module, and/or angle-variable detection are carried out in order to create a digital contrast. The digital contrast can be, for example, a digital phase contrast. A defect detection algorithm for automated material testing based on a result image with digital contrast can be used. For example, an artificial neural network can be used.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: October 17, 2023
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Lars Stoppe, Niklas Mevenkamp, Alexander Freytag
  • Publication number: 20230168503
    Abstract: A device for data projection, comprising a holographic element to be arranged by a windshield. An imaging device comprising a first imaging system is arranged at a first angle with respect to the holographic element and configured to illuminate the holographic element at a first illumination angle with first illumination light modulated with first image data. A second imaging system is arranged at a second angle with respect to the holographic element and configured to illuminate the holographic element at a second illumination angle different from the first illumination angle with second illumination light modulated with second image data such that on the holographic element the first illumination light overlaps with the second illumination light.
    Type: Application
    Filed: November 23, 2022
    Publication date: June 1, 2023
    Applicant: Carl Zeiss Jena GmbH
    Inventors: Christoph Erler, Matthias Burkhardt, Alexandre Gatto
  • Patent number: 11665323
    Abstract: A projection system can include a first modulator including a plurality of pixels in a first modulator surface, a second modulator including a plurality of pixels in a second modulator surface, and an intermediate imaging optical unit, which images the first modulator surface onto the second modulator surface, wherein the intermediate imaging optical unit includes a first lens having a convex side and wherein the convex side of the first lens is a free-form surface, which is not spherical and not rotationally symmetric and does not exhibit any mirror symmetry.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: May 30, 2023
    Assignee: Carl Zeiss Jena GmbH
    Inventor: Marco Pretorius
  • Patent number: 11566765
    Abstract: A lighting device is provided, comprising a spatially extended light source with a light-emitting surface greater than 0.5 mm2 and also an aspherical TIR lens, which is configured to collimate light from the spatially extended light source, and a refractive diffuser configured to generate a lighting distribution on the basis of the collimated light.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: January 31, 2023
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Matthias Cumme, Arnaud Deparnay, Roman Kleindienst
  • Patent number: 11537078
    Abstract: A lighting device (31), in particular a rear luminaire, for a vehicle (30) is provided. The lighting device (31) has a hologram (34) and a light source (32) for illuminating the hologram (34). An image, more particularly a real image (35), is thereby generated, which can also lie outside the physical boundaries of the lighting device (31).
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: December 27, 2022
    Assignee: CARL ZEISS JENA GMBH
    Inventor: Christoph Erler
  • Patent number: 11513354
    Abstract: A light guide for guiding light for an HMD includes at least one input coupling structure and at least one output coupling structure. The output coupling structure can be oriented such that for all the rays that are coupled out by the output coupling structure and for which the wave vector k has a negative ratio ky/kxz after they have been coupled out, the wave vector k in the light guide has a ratio of ky/kxz of greater than ?0.2, and/or that for all the rays that are coupled out by the output coupling structure and for which the wave vector k has a positive ratio ky/kxz after they have been coupled out, the wave vector k in the light guide has a ratio of ky/kxz of less than +0.2.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 29, 2022
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Wolfgang Singer, Matthias Hillenbrand, Hans-Juergen Dobschal
  • Patent number: 11473746
    Abstract: A lighting device is provided, comprising a spatially extended light source with a light-emitting surface greater than 0.5 mm2 and also an aspherical TIR lens, which is configured to collimate light from the spatially extended light source, and a refractive diffuser configured to generate a lighting distribution on the basis of the collimated light.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 18, 2022
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Matthias Cumme, Arnaud Deparnay, Roman Kleindienst
  • Patent number: 11474347
    Abstract: Provided is a waveguide arrangement, comprising a diffractive input coupling element (11), in particular a volume hologram, a diffractive output coupling element (13), in particular a volume hologram, and optionally a beam expansion element (12), in particular a volume hologram. The expansion element (12) and the output coupling element (13) expand a light beam in different directions.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: October 18, 2022
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Christoph Erler, Mirko Riethmüller, Andreas Lütz, Alexandre Gatto, Mario Sondermann
  • Publication number: 20220326427
    Abstract: The invention relates to a waveguide having a partially transparent incoupling portion, having a decoupling portion which is spaced apart from the incoupling portion in the lateral direction, having a substantially transparent base body which is outside of the incoupling portion and outside of the decoupling portion, wherein the transparent base body has a front side and a rear side, the wave guide having a diffractive incoupling structure in the incoupling portion and the waveguide having a decoupling structure in the decoupling portion, the diffractive incoupling structure being designed to diffract radiation coming from an object to be detected and incident on a front side of the waveguide in the incoupling portion only in part such that the diffracted part propagates to the decoupling portion by reflections in the base body as incoupled radiation, wherein the decoupling structure deflects at least one part of the incoupled radiation incident thereon such that the deflected part exits the base body in the
    Type: Application
    Filed: September 29, 2020
    Publication date: October 13, 2022
    Applicant: Carl Zeiss Jena GmbH
    Inventor: Daniel THOMAE
  • Patent number: 11460407
    Abstract: For the purpose of gas quality monitoring, a spectroscopic examination of a gas sample from a space (10) to be monitored is carried out, e.g. by Raman spectroscopy. The spectroscopic examination yields a measurement spectrum extending over a wavelength range. A deviation of the measurement spectrum from at least one comparison sample (160) is then detected. Depending on the detected deviation, a gas quality warning (QW) is produced.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: October 4, 2022
    Assignees: Carl Zeiss Jena GmbH, Carl Zeiss Spectroscopy GmbH
    Inventors: Michael Rode, Alexandre Gatto, Arnaud Deparnay, Michael Helgert
  • Publication number: 20220307669
    Abstract: Light-emitting devices for motor vehicles are provided, which comprise a reflection hologram. A light-guiding body is provided to direct light from a light source arrangement (4) onto the hologram.
    Type: Application
    Filed: June 15, 2022
    Publication date: September 29, 2022
    Applicant: Carl Zeiss Jena GmbH
    Inventors: Daniel THOMAE, Roman KLEINDIENST, Christoph ERLER, Petr VOJTISEK, Alexandre GATTO
  • Patent number: 11391435
    Abstract: Light-emitting devices for motor vehicles are provided, which comprise a reflection hologram. A light-guiding body is provided to direct light from a light source arrangement onto the hologram.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 19, 2022
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Daniel Thomae, Roman Kleindienst, Christoph Erler, Petr Vojtisek, Alexandre Gatto
  • Publication number: 20220206208
    Abstract: Devices for generating a luminous distribution to illuminate an object with an optical waveguide that comprises at least one input coupling element and a plurality of replication regions are provided. The device is configured to provide a luminous distribution. Further provided are a keratometer, a projection device, a microscope, a calibration device, an area lamp, and a window.
    Type: Application
    Filed: March 31, 2020
    Publication date: June 30, 2022
    Applicant: Carl Zeiss Jena GmbH
    Inventors: Matthias HILLENBRAND, Daniel BUBLITZ, Thomas NOBIS, Martin HACKER, Tobias BUEHREN, Roman KLEINDIENST, Alexander PESCH
  • Patent number: 11339943
    Abstract: The invention relates to a lighting device for motor vehicles. Said lighting device comprises a primary hologram for providing a lighting function when the primary hologram is illuminated with illumination light. The illumination light is directed towards the primary hologram via a secondary hologram system which comprises a coupling-in hologram, a waveguide substrate and a coupling-out hologram.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 24, 2022
    Assignee: Carl Zeiss Jena GmbH
    Inventor: Petr Vojtisek
  • Patent number: 11334047
    Abstract: A device and method for the controlled processing of at least one workpiece (1), comprising a workpiece carrier (2) on which at least one workpiece receptacle (2.1) is present remote from a rotary shaft (2.0), at least one processing unit (3) and at least one inspection unit (4), which are offset relative to the rotary shaft (2.0) by an angular distance (?n) from one another, are each arranged so that they can be adjusted and moved in a translational manner radially with respect to the rotary shaft (2.0), so that a processing beam (E) and an inspection beam (P), offset relative to one another by the angular distance (?n), describe the same spiral-shaped movement path (S) relative to the workpiece carrier (2), and the inspection results derived at an inspection point (PP) are used to control process parameters in order to change the effect of the processing beam (E).
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: May 17, 2022
    Assignee: CARL ZEISS JENA GMBH
    Inventors: Thomas Koehler, Christian Schindler, Hannes Scheibe, Eckhard Roth
  • Patent number: 11281085
    Abstract: An illumination apparatus includes a first solid-state-based illumination module, a second solid-state-based illumination module, and a superposition unit, which couples first and the second luminescence radiation into an illumination beam path, in which said radiation is guided up to the end of the illumination beam path in order to illuminate a light modulator. A filter unit which filters light with a second color from the first luminescence radiation with a first color and from the second luminescence radiation such that light with the first and second color is present at the end of the illumination beam path.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: March 22, 2022
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Marcus Heidkamp, Dirk Doering, Axel Krause, Peter Klopfleisch, Alexander Gratzke, Bryce Anton Moffat
  • Publication number: 20220034464
    Abstract: A lighting device is provided, comprising a spatially extended light source with a light-emitting surface greater than 0.5 mm2 and also an aspherical TIR lens, which is configured to collimate light from the spatially extended light source, and a refractive diffuser configured to generate a lighting distribution on the basis of the collimated light.
    Type: Application
    Filed: September 25, 2019
    Publication date: February 3, 2022
    Applicant: Carl Zeiss Jena GmbH
    Inventors: Matthias CUMME, Arnaud DEPARNAY, Roman KLEINDIENST
  • Patent number: 11187903
    Abstract: A light guide for an imaging apparatus for generating a virtual image from an initial image with at least two different initial image field regions is provided. The light guide includes an input coupling structure for coupling beams coming from the initial image into the light guide, and an extensive output coupling structure for coupling the beams that were coupled into the light guide out of the light guide. The extensive output coupling structure includes at least two partial faces. Each partial face is assigned to a different one of the initial image field regions and couples out the beams coming from the corresponding initial image field region. The partial faces of the output coupling structure are tilted about two non-parallel axes. The light guide can be part of an imaging apparatus, which can be used in particular in a head-mounted display.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 30, 2021
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Hans-Juergen Dobschal, Karsten Lindig, Matthias Hillenbrand
  • Patent number: 11137615
    Abstract: An illumination apparatus for a projector that includes a light modulator is provided. The illumination apparatus includes a first illumination module emitting first radiation, a second illumination module emitting second radiation, a light mixing rod extending in the axial direction and a superposition unit, which superposes the first and second radiation and couples this into the light mixing rod. The superposition unit includes a first imaging optical unit which focuses the first radiation into the light mixing rod such that a first focus is present, and a second imaging optical unit which focuses the second radiation into the light mixing rod such that a second focus is present. The first focus is spaced apart from the second focus in the axial direction.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: October 5, 2021
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Peter Klopfleisch, Dirk Doering, Bryce Anton Moffat, Alexander Gratzke