Patents Assigned to ESPROS Photonics AG
-
Patent number: 11506768Abstract: A TOF camera apparatus for transmitting light signals and recording the light that is scattered back at an object and also for determining the distance of the TOF camera apparatus from the object is proposed, wherein the TOF camera apparatus comprises: a transmitter for transmitting light signals, a receiver for detecting the light scattered back at the object, embodied in the form of a pixel matrix having at least one pixel, a modulation device for producing a modulation signal in order to modulate light signals that are to be transmitted by the transmitter, an evaluation device for evaluating the light detected by the receiver, which evaluation device is connected to the modulation device to obtain the modulation signal for evaluating and determining the distance. In order to make possible particularly reliable error detection, a check apparatus for error detection in at least one of the pixels is provided.Type: GrantFiled: February 7, 2019Date of Patent: November 22, 2022Assignee: ESPROS Photonics AGInventor: Beat De Coi
-
Patent number: 11307296Abstract: The present disclosure relates to a time-of-flight distance measuring device. The light source (24) includes a plurality of emitting portions (70, 72), each of which illuminates a respective one of the sub-regions (R1, R2). The light receiver (26) includes a plurality of receiving portions (74, 76) corresponding to respective ones of the emitting portions (70, 72). The first controller (28) controls (i) a first emitting portion (70) to emit the emitted light including an Nth-order harmonic component of a fundamental frequency and (ii) a second emitting portion (72) to emit the emitted light including an Mth-order harmonic component. The second controller (30) controls a particular receiving portion (74) corresponding to the first emitting portion (70) to be sensible to the Nth-order Mth-order harmonic components. The multipath detector (82) detects occurrence of the multipath error when the particular receiving portion (74) senses both the Nth-order and Mth-order components.Type: GrantFiled: February 8, 2016Date of Patent: April 19, 2022Assignees: DENSO CORPORATION, ESPROS PHOTONICS AGInventors: Toshiaki Nagai, Martin Popp, Cengiz Tugsav Kupcu
-
Patent number: 11175403Abstract: A flexibly usable optoelectronic sensor device for detecting an object, comprising a receiving device for receiving light backscattered after the scattering of an emitted light beam at the object, wherein the receiving device has an array of at least two receiving elements for detecting radiation and a receiving optical unit for imaging the received radiation on the array; the array is divisible and/or divided into at least two array regions, wherein the at least two array regions correspond in each case to scatterings at objects at different distances from the monitoring region and/or different brightnesses of the received radiation, and the receiving elements respectively arranged in different array regions are settable and/or set to detect with mutually different light sensitivities.Type: GrantFiled: April 13, 2018Date of Patent: November 16, 2021Assignees: ESPROS Photonics AG, Valeo Schalter und Sensoren GmbHInventors: Jan Simon, Thomas Schuler, Peter Horvath, Beat De Coi
-
Patent number: 10845483Abstract: A method for reading a demodulation pixel of a distance sensor for determining a distance, in particular for determining the difference between two charge quantities independently of the total magnitude of the charge quantities, and also a distance sensor are proposed. For faster signal processing, provision is made for applying a variable control voltage to the transfer gates for influencing the potential wall, and lowering the respective potential walls of the corresponding transfer gates, before and/or until from the storage gates in each case charge carriers can surmount the respective potential wall of the corresponding transfer gate and pass to the assigned floating diffusion.Type: GrantFiled: December 29, 2017Date of Patent: November 24, 2020Assignee: ESPROS Photonics AGInventors: Beat De Coi, Martin Popp
-
Patent number: 10754014Abstract: In order to measure distances precisely, a receiver device for determining a distance from an object is proposed, comprising: a receiver having a semiconductor structure with a photosensitive region for generating photo-induced charge carriers, which region faces the rear side, and having a transportation region, which faces the front side, wherein the photosensitive region and the transportation region are spatially separated from one another by a separation layer which has a passage between the photosensitive region and the transportation region, wherein the transportation region has an arrangement of at least two gates lying one next to the other, at least one of the gates thereof being located in the overlapping region of the passage.Type: GrantFiled: October 31, 2017Date of Patent: August 25, 2020Assignees: Espros Photonics AG, Valeo Schalter Und Sensoren GmbHInventors: Martin Popp, Beat De Coi, Jan Simon, Peter Horvath, Lin Lin, Thomas Schuler, Felix Mueller, Heiko Hofmann
-
Patent number: 10502625Abstract: Spectrometer for recording a spectrum, in particular in a wavelength range of 250 nm to 1150 nm, comprising: a sensor array and a filter array for filtering the radiation depending on the wavelength, wherein, in order to reduce production costs, provision is made of a device for identifying the sensor pixels covered by the filter array, having a nonvolatile memory in which the coordinates of the filter array in relation to the sensor array and/or the coordinate transformation of the filter array in relation to the sensor array are/is stored in order to assign the sensor pixels to the individual filter pixels on the basis of the stored coordinates and/or coordinate transformation and/or in order to activate the individual filter pixels depending on which of the sensor pixels are covered by the corresponding filter pixels.Type: GrantFiled: November 3, 2017Date of Patent: December 10, 2019Assignee: Espros Photonics AGInventor: Beat De Coi
-
Publication number: 20190257929Abstract: A TOF camera apparatus for transmitting light signals and recording the light that is scattered back at an object and also for determining the distance of the TOF camera apparatus from the object is proposed, wherein the TOF camera apparatus comprises: a transmitter for transmitting light signals, a receiver for detecting the light scattered back at the object, embodied in the form of a pixel matrix having at least one pixel, a modulation device for producing a modulation signal in order to modulate light signals that are to be transmitted by the transmitter, an evaluation device for evaluating the light detected by the receiver, which evaluation device is connected to the modulation device to obtain the modulation signal for evaluating and determining the distance. In order to make possible particularly reliable error detection, a check apparatus for error detection in at least one of the pixels is provided.Type: ApplicationFiled: February 7, 2019Publication date: August 22, 2019Applicant: ESPROS Photonics AGInventor: Beat DE COI
-
Patent number: 10148892Abstract: The image sensor according to the invention is an image sensor with a matrix of pixels for generating a resulting image with a higher dynamic range from the acquisition of two original images, wherein the pixels of the image sensor are designed as demodulation pixels, wherein each comprises a conversion region for generating charge carriers from the received radiation, a separation device for temporally separating the generated charge carriers into two charge carrier streams, a memory device with two memories for separately storing the charge carriers of the two charge carrier streams, and a read-out device for converting the stored charge carriers into electrical signals, wherein the separation device is designed to carry out the separation of the charge carriers generated in one period into two different time periods.Type: GrantFiled: February 15, 2017Date of Patent: December 4, 2018Assignee: ESPROS Photonics AGInventor: Beat De Coi
-
Publication number: 20180299549Abstract: A flexibly usable optoelectronic sensor device for detecting an object, comprising a receiving device for receiving light backscattered after the scattering of an emitted light beam at the object, wherein the receiving device has an array of at least two receiving elements for detecting radiation and a receiving optical unit for imaging the received radiation on the array; the array is divisible and/or divided into at least two array regions, wherein the at least two array regions correspond in each case to scatterings at objects at different distances from the monitoring region and/or different brightnesses of the received radiation, and the receiving elements respectively arranged in different array regions are settable and/or set to detect with mutually different light sensitivities.Type: ApplicationFiled: April 13, 2018Publication date: October 18, 2018Applicants: ESPROS Photonics AG, Valeo Schalter und sensoren GmbHInventors: Jan SIMON, Thomas Schuler, Peter Horvath, Beat De Coi
-
Publication number: 20180203117Abstract: A method for reading a demodulation pixel of a distance sensor for determining a distance, in particular for determining the difference between two charge quantities independently of the total magnitude of the charge quantities, and also a distance sensor are proposed. For faster signal processing, provision is made for applying a variable control voltage to the transfer gates for influencing the potential wall, and lowering the respective potential walls of the corresponding transfer gates, before and/or until from the storage gates in each case charge carriers can surmount the respective potential wall of the corresponding transfer gate and pass to the assigned floating diffusion.Type: ApplicationFiled: December 29, 2017Publication date: July 19, 2018Applicant: ESPROS Photonics AGInventors: Beat DE COI, Martin POPP
-
Publication number: 20180143075Abstract: Spectrometer for recording a spectrum, in particular in a wavelength range of 250 nm to 1150 nm, comprising: a sensor array and a filter array for filtering the radiation depending on the wavelength, wherein, in order to reduce production costs, provision is made of a device for identifying the sensor pixels covered by the filter array, having a nonvolatile memory in which the coordinates of the filter array in relation to the sensor array and/or the coordinate transformation of the filter array in relation to the sensor array are/is stored in order to assign the sensor pixels to the individual filter pixels on the basis of the stored coordinates and/or coordinate transformation and/or in order to activate the individual filter pixels depending on which of the sensor pixels are covered by the corresponding filter pixels.Type: ApplicationFiled: November 3, 2017Publication date: May 24, 2018Applicant: ESPROS Photonics AGInventor: Beat DE COI
-
Publication number: 20180128907Abstract: In order to measure distances precisely, a receiver device for determining a distance from an object is proposed, comprising: a receiver having a semiconductor structure with a photosensitive region for generating photo-induced charge carriers, which region faces the rear side, and having a transportation region, which faces the front side, wherein the photosensitive region and the transportation region are spatially separated from one another by a separation layer which has a passage between the photosensitive region and the transportation region, wherein the transportation region has an arrangement of at least two gates lying one next to the other, at least one of the gates thereof being located in the overlapping region of the passage.Type: ApplicationFiled: October 31, 2017Publication date: May 10, 2018Applicants: ESPROS Photonics AG, Valeo Schalter und Sensoren GmbHInventors: Martin POPP, Beat DE COI, Jan SIMON, Peter HORVATH, Lin LIN, Thomas SCHULER, Felix MUELLER, Heiko HOFMANN
-
Patent number: 9952324Abstract: TOF distance sensor for capturing the distance to an object by receiving radiation reflected by the object, said radiation emanating from a radiation source modulated by a modulation frequency, comprising a pixel matrix for recording a pixel image. The pixel matrix consists of demodulation pixels which are designed for rear-side reception of the radiation. The demodulation pixels comprise a conversion region for generating charge carriers from the received radiation, and a separating device for separating the charge carriers in accordance with the modulation frequency, and also a stop for partitioning-off the conversion region from the separating device in relation to the charge carriers, and also an aperture for passing the charge carriers from the conversion region into the separating device. The TOF distance sensor is embodied in such a way that in each case at least two demodulation pixels form a common aperture.Type: GrantFiled: May 16, 2017Date of Patent: April 24, 2018Assignee: ESPROS Photonics AGInventor: Martin Popp
-
Patent number: 9805455Abstract: A rotary encoder system for registering the rotary angle position and/or angular speed of a rotary shaft which extends along an axis of rotation, including at least two optical marks at the rotary shaft, an optical sensor with a pixel matrix having pixel points, an imaging device for imaging each mark in a substantially axial direction on the pixel matrix as a mark image, and an evaluation device for reading and evaluating the pixel matrix in order to determine data in relation to the rotary angle position and/or angular speed. Further, the marks, the imaging device and pixel points are embodied in such a way that the mark images on the pixel matrix have at least the area of a pixel point, and the evaluation device is embodied to establish the location of the centroids of the mark images on the pixel matrix.Type: GrantFiled: November 16, 2015Date of Patent: October 31, 2017Assignee: Espros Photonics AGInventor: Beat De Coi
-
Publication number: 20170293031Abstract: TOF distance sensor for capturing the distance to an object by receiving radiation reflected by the object, said radiation emanating from a radiation source modulated by a modulation frequency, comprising a pixel matrix for recording a pixel image. The pixel matrix consists of demodulation pixels which are designed for rear-side reception of the radiation. The demodulation pixels comprise a conversion region for generating charge carriers from the received radiation, and a separating device for separating the charge carriers in accordance with the modulation frequency, and also a stop for partitioning-off the conversion region from the separating device in relation to the charge carriers, and also an aperture for passing the charge carriers from the conversion region into the separating device. The TOF distance sensor is embodied in such a way that in each case at least two demodulation pixels form a common aperture.Type: ApplicationFiled: May 16, 2017Publication date: October 12, 2017Applicant: ESPROS Photonics AGInventor: Martin POPP
-
Publication number: 20170237891Abstract: The image sensor according to the invention is an image sensor with a matrix of pixels for generating a resulting image with a higher dynamic range from the acquisition of two original images, wherein the pixels of the image sensor are designed as demodulation pixels, wherein each comprises a conversion region for generating charge carriers from the received radiation, a separation device for temporally separating the generated charge carriers into two charge carrier streams, a memory device with two memories for separately storing the charge carriers of the two charge carrier streams, and a read-out device for converting the stored charge carriers into electrical signals, wherein the separation device is designed to carry out the separation of the charge carriers generated in one period into two different time periods.Type: ApplicationFiled: February 15, 2017Publication date: August 17, 2017Applicant: ESPROS Photonics AGInventor: Beat DE COI
-
Patent number: 9377532Abstract: A TOF distance sensor is proposed, for measuring a distance from an object, comprising an electronics apparatus for generating a modulation signal and for generating four correlation signals, which are phase shifted with respect to one another and which have the same period as the modulation signal; a radiation source for emitting radiation, which is modulated by the modulation signal; a reception apparatus, which has a predetermined spatial relationship with respect to the radiation source, for receiving radiation reflected by the object; a correlation apparatus for correlating the received radiation or a corresponding variable with respectively one of the four correlation signals in order to form four corresponding correlation values; a difference-forming apparatus for forming two difference correlation values from the difference between respectively two of the correlation values; a calculation apparatus embodied to calculate the distance with a predetermined linear dependence on the two difference correlatType: GrantFiled: December 9, 2013Date of Patent: June 28, 2016Assignee: ESPROS Photonics AGInventors: Dieter Huber, Markus Ledergerber
-
Patent number: 8901690Abstract: A semiconductor structure for photon detection, comprising a substrate composed of a semiconductor material having a first doping, a contact region fitted at the frontside of the substrate, a bias layer composed of a semiconductor material having a second doping, which is arranged on the backside of the substrate at a distance from the contact region, wherein the contact region at least partly lies opposite the bias layer, such that an overlap region is present in a lateral direction, a guard ring, which is arranged at the frontside of the substrate and surrounds the contact region, wherein a reverse voltage can be applied between the contact region and the guard ring. In order to enable more cost-effective production, the overlap region has a lateral extent amounting to at least one quarter of the distance between contact region and bias layer.Type: GrantFiled: July 18, 2012Date of Patent: December 2, 2014Assignee: ESPROS Photonics AGInventors: Martin Popp, Beat De Coi, Marco Annese
-
Patent number: 8836924Abstract: A sensor apparatus including at least one analog and one digital circuit component and an analog/digital converter for converting analog signals of the analog circuit component into digital signals for the digital circuit component, and vice versa, wherein the analog circuit component and the digital circuit components include at least one module for electronically implementing a function, and wherein one of the modules of the analog circuit component is embodied as a sensor device for detecting optical radiation and one of the modules of the digital circuit component is embodied as a signal processing device for processing digital signals. In order to enable improved integration into application-based sensor devices, the circuit components including the analog/digital converter are integrated as an integrated circuit in a chip and the chip is manufactured as a semiconductor structure using 1-poly technology.Type: GrantFiled: January 23, 2012Date of Patent: September 16, 2014Assignee: Espros Photonics AGInventors: Martin Popp, Beat De Coi
-
Patent number: 8802566Abstract: A method for producing semiconductor components on a substrate including photolithographic patterning steps, in which method, on the substrate, a first layer to be patterned is applied and a second layer serving as a mask layer for the first layer to be patterned is applied, wherein a third layer serving as a mask for the second layer is applied, and wherein at least two photolithographic patterning processes are carried out successively for the second layer, wherein, during one of the patterning processes, after the production of a structure made from a photosensitive layer for the provision of a mask layer for a patterning process at the third layer, positive ramp angles ? are produced at the patterning edges of the third layer, as a result of which the structures remaining free, given a thickness h of the third layer, decrease in size by a value D=2*h/tan ?.Type: GrantFiled: August 24, 2012Date of Patent: August 12, 2014Assignee: Espros Photonics AGInventors: Martin Popp, Beat De Coi, Marco Annese