Patents Assigned to Heptagon Micro Optics Pte. Ltd.
  • Patent number: 9945756
    Abstract: Identifying a location of a focal point of an optical system includes, in some implementations, using a sensor system to detect light that passed through the optical system, and determining a location of a focal point of the optical system based on a location of a focal point of the sensor system that substantially matches the location of the focal point of the optical system.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: April 17, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventors: Matthias Maluck, Peter Roentgen
  • Publication number: 20180102394
    Abstract: Various optoelectronic modules are described that include an optoelectronic device (e.g., a light emitting or light detecting element) and a transparent cover. Non-transparent material is provided on the sidewalls of the transparent cover, which, in some implementations, can help reduce light leakage from the sides of the transparent cover or can help prevent stray light from entering the module. Fabrication techniques for making the modules also are described.
    Type: Application
    Filed: December 1, 2017
    Publication date: April 12, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Hartmut Rudmann, Simon Gubser, Susanne Westenhöfer, Stephan Heimgartner, Jens Geiger, Sonja Hanselmann, Christoph Friese, Xu Yi, Thng Chong Kim, John A. Vidallon, Ji Wang, Qi Chuan Yu, Kam Wah Leong
  • Patent number: 9924866
    Abstract: The present disclosure describes compact remote eye tracking systems that include depth sensing capacity. In one aspect, a method of eye tracking includes illuminating a subject's eye with illumination; detecting, in a depth sensor, optical signals reflected from the subject's face in response to the illumination; generating a depth map based on the optical signals detected by the depth sensor; acquiring an intensity image based on optical signals reflected from the subject's face in response to the illumination; determining, based on a portion of the depth map corresponding to the subject's eye, an estimated distance between the subject's eye and a target screen; determining an estimated gaze direction of the subject's eye based on information obtained from the intensity image; and determining, based on the estimated gaze direction and the estimated distance between the subject's eye and the target screen, a gaze point for the subject's eye.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: March 27, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventor: Yibin Tian
  • Publication number: 20180073924
    Abstract: Optoelectronic modules for proximity determination and ambient light sensing include hybrid optical assemblies configured with multiple field-of-views. The field of view in a region of the hybrid optical assembly can be dedicated to a first detector, while the field of views in another region of the hybrid optical assembly can be dedicated to both the emission of light and ambient light sensing. Embodiments relate particularly to implementation in a mobile phone or other portable electronic devices.
    Type: Application
    Filed: February 12, 2016
    Publication date: March 15, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Lukas Steinmann, Hartmut Rudmann
  • Publication number: 20180064399
    Abstract: Imaging systems include multi-tap demodulation pixels for biometric measurements such as heart rate or blood oxygen level. Using multi-tap demodulation pixels can, in some cases, help facilitate the generation of differential signals to remove background noise and achieve a higher dynamic range for the biometric measurements.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 8, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Bernhard Buettgen, Jens Geiger, Michael Kiy, Oliver Chidley, Markus Rossi
  • Publication number: 20180059218
    Abstract: A time of flight-based system is operable for ambient light measurements. A method of operation includes detecting, in at least one active demodulation detection pixel, a first particular wavelength and generating amplitude data of the first particular wavelength; and detecting, in at least one spurious reflection detection pixel, a second particular wavelength and generating amplitude data of the second particular wavelength. In a computational device that stores spectrum data corresponding respectively to a plurality of different ambient light source types, an ambient lighting condition is determined based on the amplitude data of the first particular wavelength, the amplitude data of the second particular wavelength and the spectrum data of a particular one of the ambient light source types associated with the amplitude data of the first particular wavelength and the amplitude data of the second particular wavelength.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Bernhard Buettgen, Jens Geiger, Michael Kiy, Oliver Chidley, Markus Rossi
  • Publication number: 20180059246
    Abstract: An optoelectronic module includes a first light emitter operable to emit radiation at a first wavelength toward an object outside the module. The module also includes demodulation pixels operable to detect radiation of the first wavelength reflected from the object. One or more processors are operable to determine a distance to the object based on the radiation detected by the demodulation pixels. The module is further operable to perform a supplemental measurement other than distance.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Bernhard Buettgen, Jens Geiger, Michael Kiy, Oliver Chidley, Markus Rossi
  • Patent number: 9899251
    Abstract: Techniques are described for holding a wafer or wafer sub-stack to facilitate further processing of the wafer of sub-stack. In some implementations, a wafer or wafer sub-stack is held by a vacuum chuck in a manner that can help reduce bending of the wafer or wafer sub-stack.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 20, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventors: Hartmut Rudmann, Stephan Heimgartner, John A. Vidallon
  • Patent number: 9887221
    Abstract: Optical modules are made using customizable spacers to reduce variations in the focal lengths of the optical channels, to reduce the occurrence of tilt of the optical channels, and/or prevent adhesive from migrating to active portions of an image sensor.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: February 6, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventors: Hartmut Rudmann, Jukka Alasirniö, Bojan Tesanovic, Tobias Senn, Devanraj Kupusamy, Alexander Bietsch
  • Patent number: 9885785
    Abstract: A method and system to compensate for stray light errors in time of flight (TOF) camera systems uses reference targets in the in the field of view (FOV) that can be used to measure stray light. In different embodiments, one or more reference targets are used.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: February 6, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventor: Thierry Oggier
  • Publication number: 20180032210
    Abstract: The present disclosure describes projecting a structured light pattern onto a surface and detecting and responding to interactions with the same. A method includes-acquiring an image based on light reflected from a vicinity of the projection surface, and identifying regions of the acquired image that correspond to a feature that is within a specified distance of the projection surface by identifying regions of the acquired image for which intensity data differs relative to other regions of the acquired image and which fit a specified homographic relationship with respect to corresponding regions of a reference image.
    Type: Application
    Filed: July 27, 2017
    Publication date: February 1, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Florin Cutu, Chi Zhang
  • Patent number: 9880391
    Abstract: A lens module includes a substrate, a first array of passive optical elements on the substrate, and a second array of passive optical elements separate from the first array. The optical elements of the first array and the optical elements of the second array form multiple optical channels, in which at least one optical channel is a catadioptric optical channel including a reflective optical element and a refractive optical element. The reflective optical element is arranged to reflect light toward the refractive optical element, each optical channel has a corresponding field-of-view, and the lens module has an overall field of view defined by the range of angles subtended by the field-of-view of the plurality of optical channels.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: January 30, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventor: Markus Rossi
  • Publication number: 20180024697
    Abstract: The present disclosure describes projecting a structured light pattern projected onto a surface and detecting and responding to interactions with the same. The techniques described here can, in some cases, facilitate recognizing that an object such as a user's hand is adjacent the plane of a projection surface and can distinguish the object from the projection surface itself. Movement of the object then can be interpreted, for example, as a specified type of gesture that can trigger a specified type of operation to occur.
    Type: Application
    Filed: July 20, 2017
    Publication date: January 25, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Chi Zhang, Florin Cutu
  • Publication number: 20180026020
    Abstract: Compact optoelectronic modules are described that, in some implementations, can have reduced heights, while at the same time having very little optical crosstalk or detection of stray light. An optoelectronic module having optical channel can include a support on which is mounted an optoelectronic device arranged to emit or detect light at a particular one or more wavelengths. The module has a cover including an optically transmissive portion over the optoelectronic device. The optically transmissive portion is surrounded laterally by sections of the cover that are substantially non-transparent to the one or more wavelengths. A passive optical element is present on a surface of the optically transmissive portion. A spacer separates the support from the cover. The cover can be relatively thin so that the overall height of the module is relatively small.
    Type: Application
    Filed: September 25, 2017
    Publication date: January 25, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventor: Jens Geiger
  • Patent number: 9875998
    Abstract: Fabricating an optics wafer includes providing a wafer comprising a core region composed of a glass-reinforced epoxy, the wafer further comprising a first resin layer on a top surface of the core region and a second resin layer on a bottom surface of the core region. The wafer further includes vertical transparent regions that's extend through the core region and the first and second resin layers. The wafer is thinned from its top surface and its bottom surface so that a resulting thickness is within a predetermined range without causing glass fibers of the core region to become exposed. Optical structures ate provided on one or more exposed surfaces of at least some of the transparent regions.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 23, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventor: Hartmut Rudmann
  • Publication number: 20180003927
    Abstract: The present disclosure describes optical and optoelectronic assemblies that, in some cases, include screen-printed micro-spacers, as well as methods for manufacturing such assemblies and modules. For example, micro-spacers can be applied on a first optical element layer, and a second optical element layer can be provided on the first micro-spacers. By providing the second optical element layer on the first micro-spacers, the second optical element layer and the first optical element layer can be separated from one another by air or vacuum gaps each of which is laterally surrounded by a portion of the first micro-spacers.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Guo Xiong Wu, Ming Jie Lee, Simon Gubser, Qichuan Yu, Joon Heng Tan
  • Publication number: 20180005864
    Abstract: Techniques are described for holding a wafer or wafer sub-stack to facilitate further processing of the wafer of sub-stack. In some implementations, a wafer or wafer sub-stack is held by a vacuum chuck in a manner that can help reduce bending of the wafer or wafer sub-stack.
    Type: Application
    Filed: September 8, 2017
    Publication date: January 4, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Hartmut Rudmann, Stephan Heimgartner, John A. Vidallon
  • Publication number: 20180006192
    Abstract: The present disclosure describes wafer-level processes for fabricating optoelectronic device subassemblies that can be mounted, for example, to a circuit substrate, such as a flexible cable or printed circuit board, and integrated into optoelectronic modules that include one or more optical subassemblies stacked over the optoelectronic device subassembly. The optoelectronic device subassembly can be mounted onto the circuit substrate using solder reflow technology even if the optical subassemblies are composed of materials that are not reflow compatible.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Hartmut Rudmann, Qichuan Yu, Simon Gubser, Bojan Tesanovic, Xu Yi, Eunice Ho Hui Ong, Hongyuan Liu, Ji Wang, Edmund Koon Tian Lua, Myo Paing, Jian Tang, Ming Jie Lee
  • Patent number: 9857469
    Abstract: A modulation technique for 3D time-of-flight (TOF) cameras allows the operation of fully autonomous operated 3D TOF cameras. The method subdivides the exposure time into several sub-exposure intervals, for which the signal control unit adds a preferably pseudo-random common phase delay to the illumination and the sensor.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: January 2, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventors: Thierry Oggier, Bernhard Buettgen, Matthias Schweizer
  • Patent number: 9859327
    Abstract: Various optoelectronic modules are described that include an optoelectronic device (e.g., a light emitting or light detecting element) and a transparent cover. Non-transparent material is provided on the sidewalls of the transparent cover, which, in some implementations, can help reduce light leakage from the sides of the transparent cover or can help prevent stray light from entering the module. Fabrication techniques for making the modules also are described.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 2, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventors: Hartmut Rudmann, Simon Gubser, Susanne Westenhöfer, Stephan Heimgartner, Jens Geiger, Sonja Hanselmann, Christoph Friese, Xu Yi, Thng Chong Kim, John A. Vidallon, Ji Wang, Qi Chuan Yu, Kam Wah Leong