公开(公告)号：US20180284273A1

公开(公告)日：2018-10-04

申请号：US15764358

申请日：2016-09-26

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Gözen Köklü ,  Daniel Furrer ,  Stephan Beer ,  Miguel Bruno Vaello Paños

IPC: G01S17/08 ,  G01J3/28 ,  G01J3/02 ,  G01S17/89 ,  H04N5/33 ,  G06T7/514

CPC classification number: G01S17/08 ,  G01B11/00 ,  G01C3/08 ,  G01J3/0208 ,  G01J3/0213 ,  G01J3/0216 ,  G01J3/0229 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/2806 ,  G01S17/89 ,  G06T7/514 ,  G06T2207/10024 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14825 ,  H04N5/332

Abstract: An optoelectronic module operable to acquire distance data and spectral data includes an array of demodulation pixels and an array of spectral filters. The demodulation pixels can possess an intrinsic wavelength-dependent sensitivity, wherein the intrinsic wavelength-dependent sensitivity can be offset by an intensity balancing micro-lens array in some cases. In some cases, the intrinsic wavelength-dependent sensitivity can be offset by a combined filter array, while in other cases the intrinsic wavelength-dependent sensitivity can be offset by an intensity balancing filter array. Still in other cases, the demodulation pixels can be operable in such as to offset the intrinsic wavelength-dependent sensitivity.

公开(公告)号：US20180059218A1

公开(公告)日：2018-03-01

申请号：US15689079

申请日：2017-08-29

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Jens Geiger ,  Michael Kiy ,  Oliver Chidley ,  Markus Rossi

IPC: G01S7/483 ,  G01S17/36 ,  G01S17/42 ,  G01S17/02 ,  G01S7/481 ,  G01S7/497

CPC classification number: G01S7/483 ,  G01S7/481 ,  G01S7/4813 ,  G01S7/497 ,  G01S17/026 ,  G01S17/36 ,  G01S17/42 ,  G01S2007/4975

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.

公开(公告)号：US20170222076A1

公开(公告)日：2017-08-03

申请号：US15419273

申请日：2017-01-30

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Daniel Furrer ,  Stephan Beer ,  Bernhard Buettgen

IPC: H01L31/0352 ,  H01L31/0224 ,  G01V8/10 ,  G01S17/08 ,  G01S7/481 ,  H01L27/144 ,  H01L31/16

CPC classification number: H01L31/035218 ,  G01S7/4816 ,  G01S7/4914 ,  G01S7/4915 ,  G01S17/36 ,  G01S17/89 ,  H01L27/1443 ,  H01L27/1446 ,  H01L31/022408 ,  H01L31/165

Abstract: The present disclosure describes quantum dot film based demodulation structures and optical ranging systems including an array of QDF demodulation structures.

公开(公告)号：US20200066771A1

公开(公告)日：2020-02-27

申请号：US15769867

申请日：2016-10-21

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Gözen Köklü ,  Bernhard Buettgen

IPC: H01L27/146 ,  H01L31/12

Abstract: Pixel devices and arrays of pixel devices are operable to demodulate modulated light incident on a photo-detection region of the pixel devices. The pixel devices can include floating diffusion implant layers and transfer gates. The floating diffusion implant layers and transfer gates are disposed such that photo-generated charge carriers can be conducted to the floating diffusion implant layers over minimal charge-carrier transport paths.

公开(公告)号：US20180301498A1

公开(公告)日：2018-10-18

申请号：US15766103

申请日：2016-09-22

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  James Eilertsen

IPC: H01L27/146 ,  H01L27/148 ,  H01L31/101

CPC classification number: H01L27/14647 ,  G01J3/0205 ,  G01S7/4914 ,  G01S17/10 ,  H01L27/14656 ,  H01L27/14831 ,  H01L31/1013

Abstract: Optoelectronic modules operable to collect distance data and spectral data include demodulation pixels operable to collect spectral data and distance data via a time-of flight approach. The demodulation pixels include regions with varying charge-carrier mobilities. Multi-wavelength electromagnetic radiation incident on the demodulation pixels are separated into different portions wherein the respective portions are used to determine the composition of the incident multi-wavelength electromagnetic radiation. Accordingly, the optoelectronic module is used, for example, to collect colour images and 3D images, and/or ambient light levels and distance data. The demodulation pixels comprise contact nodes that generate potential regions that vary in magnitude with the lateral dimension of the semiconductor substrate. The potential regions conduct the photo-generated charges from the photo-sensitive detection region to a charge-collection region. The photo-generated charges are conducted to the charge-collection region with respective drift velocities that vary in magnitude with the thickness of the semiconductor substrate.

公开(公告)号：US20180059246A1

公开(公告)日：2018-03-01

申请号：US15687884

申请日：2017-08-28

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Jens Geiger ,  Michael Kiy ,  Oliver Chidley ,  Markus Rossi

IPC: G01S17/36 ,  G01S7/481 ,  G01S17/89 ,  G01S7/497 ,  A61B5/024 ,  G06F3/01

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.

公开(公告)号：US20170090018A1

公开(公告)日：2017-03-30

申请号：US15124045

申请日：2015-03-13

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Miguel Bruno Vaello Paños ,  Stephan Beer ,  Michael Lehmann ,  Daniel Pérez Calero ,  Sophie Godé ,  Bassam Hallal

IPC: G01S7/481 ,  G01S17/89

CPC classification number: G01S7/4813 ,  G01J1/0214 ,  G01J1/0422 ,  G01J2001/4247 ,  G01S7/4915 ,  G01S7/4918 ,  G01S7/497 ,  G01S17/89

Abstract: The present disclosure describes optical imaging and optical detection modules that include sensors such as time-of-flight (TOF) sensors. Various implementations are described that, in some instances, can help reduce the amount of optical cross-talk between active detection pixels and reference pixels and/or can facilitate the ability of the sensor to determine an accurate phase difference to be used, for example, in distance calculations.

公开(公告)号：US20180064399A1

公开(公告)日：2018-03-08

申请号：US15696431

申请日：2017-09-06

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Bernhard Buettgen ,  Jens Geiger ,  Michael Kiy ,  Oliver Chidley ,  Markus Rossi

IPC: A61B5/00 ,  G01S17/88 ,  G01S7/491 ,  H04N5/378 ,  G06K9/00 ,  A61B5/024 ,  A61B5/1455

CPC classification number: A61B5/7228 ,  A61B5/0077 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/14551 ,  G01S7/4914 ,  G01S7/4915 ,  G01S17/88 ,  G06K9/00885 ,  G06K9/2036 ,  G06K2009/00932 ,  G06K2009/00939 ,  H04N5/378

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.

公开(公告)号：US20170153107A1

公开(公告)日：2017-06-01

申请号：US15363120

申请日：2016-11-29

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Stephan Beer ,  Markus Rossi ,  Bernhard Buettgen

IPC: G01B11/14 ,  H05B37/02

CPC classification number: H05B37/0281 ,  G03B15/03 ,  H04N5/2256 ,  H04N5/23232 ,  H04N5/2354 ,  H05B37/0218 ,  Y02B20/46

Abstract: This disclosure describes optoelectronic devices that include an event-driven photo-array and methods for using the same. The methods include capturing output signals over a particular illumination time via a change-detection circuit. In some instances, a threshold intensity change can trigger the change-detection circuit. In some instances, an active illumination from an illumination module may produce the threshold intensity change. Output signals may be used to generate distance data. In some instances, the output signals may be substantially free from noise due to background light.

公开(公告)号：US10236400B2

公开(公告)日：2019-03-19

申请号：US15419273

申请日：2017-01-30

Applicant: Heptagon Micro Optics Pte. Ltd.

Inventor： Daniel Furrer ,  Stephan Beer ,  Bernhard Buettgen

IPC: H01L31/00 ,  H01L31/0352 ,  H01L27/144 ,  H01L31/0224 ,  H01L31/16 ,  G01S7/481 ,  G01S17/36 ,  G01S17/89 ,  G01S7/491

Abstract: The present disclosure describes quantum dot film based demodulation structures and optical ranging systems including an array of QDF demodulation structures.