Patents by Inventor Michael Linde Jakobsen
Michael Linde Jakobsen 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: 9740336Abstract: The present invention relates to an optical touch-sensitive device and a method of determining a position and determining a position change of an object contacting an optical touch sensitive device. In particular, the present invention relates to an optical touch pad and a method of determining a position and determining a position change of an object contacting an optical touch pad. A touch-sensitive device, according to the present invention may comprise a light source, a touch-sensitive waveguide, a detector array, and a first light redirecting member, wherein at least a part of the light propagating towards a specific point of the detector array is prevented from being incident upon the specific point of the detector array when an object contacts a touch-sensitive surface of the touch-sensitive waveguide at a corresponding specific contact point.Type: GrantFiled: May 12, 2016Date of Patent: August 22, 2017Assignee: O-Net WaveTouch LimitedInventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
-
Publication number: 20160259484Abstract: The present invention relates to an optical touch-sensitive device and a method of determining a position and determining a position change of an object contacting an optical touch sensitive device. In particular, the present invention relates to an optical touch pad and a method of determining a position and determining a position change of an object contacting an optical touch pad. A touch-sensitive device, according to the present invention may comprise a light source, a touch-sensitive waveguide, a detector array, and a first light redirecting member, wherein at least a part of the light propagating towards a specific point of the detector array is prevented from being incident upon the specific point of the detector array when an object contacts a touch-sensitive surface of the touch-sensitive waveguide at a corresponding specific contact point.Type: ApplicationFiled: May 12, 2016Publication date: September 8, 2016Inventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
-
Patent number: 9342187Abstract: The present invention relates to an optical touch-sensitive device and a method of determining a position and determining a position change of an object contacting an optical touch sensitive device. In particular, the present invention relates to an optical touch pad and a method of determining a position and determining a position change of an object contacting an optical touch pad. A touch-sensitive device, according to the present invention may comprise a light source, a touch-sensitive waveguide, a detector array, and a first light redirecting member, wherein at least a part of the light propagating towards a specific point of the detector array is prevented from being incident upon the specific point of the detector array when an object contacts a touch-sensitive surface of the touch-sensitive waveguide at a corresponding specific contact point.Type: GrantFiled: January 12, 2009Date of Patent: May 17, 2016Assignee: O-NET WAVETOUCH LIMITEDInventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
-
Patent number: 9285385Abstract: A vector velocimeter includes a laser emitting a measurement beam with a wavelength ?, for illumination of an object in a measurement volume to create a signal beam, a reference beam generator generating a reference beam, and a first detector arranged such that the signal beam and the reference beam, propagating at a first angle ? relative to the signal beam, are incident thereon. The first detector includes an array of first detector elements to convert the intensity of the interfering signal beam and reference beam incident thereon into an oscillating electronic detector element signal when the fringe pattern formed thereby moves across the first detector array. A signal processor generates a velocity signal corresponding to a first velocity component of movement of the object in the measurement volume in the longitudinal direction thereof based on the electronic detector element signals from each of the first detector elements.Type: GrantFiled: July 18, 2011Date of Patent: March 15, 2016Assignee: TECHNICAL UNIVERSITY OF DENMARKInventors: Steen Hanson, Michael Linde Jakobsen, Theis Iversen, Peter John Rodrigo, Christian Pedersen
-
Patent number: 9103660Abstract: The present invention relates to a method (60) and device (2, 40, 50) for detecting presence of an object (52) by means of influencing propagation of light (16) arriving to a detector (14). The device (2, 40, 50) for detecting presence of the object (52) at the device (2, 40, 50) comprises a light source (4), a first redirecting structure (6), a second redirecting structure (10), and a light detector device (14). The light source (4) is adapted to emit light (16) towards the first redirecting structure (6), which is adapted to redirect light (16) from the light source (4) towards the second redirecting structure (10), which is adapted to return light (16) from the first redirecting structure (6) back towards the first redirecting structure (6), which is adapted to redirect light (16) from the second redirecting structure (10) towards the light detector device (14).Type: GrantFiled: January 4, 2011Date of Patent: August 11, 2015Assignee: O-Net Wavetouch LimitedInventors: Henrik Chresten Pedersen, Michael Linde Jakobsen, Vagn Steen Gruner Hanson
-
Patent number: 9069124Abstract: The present invention relates to a device for encoding a position of an object, comprising a first light source; a first collimating element adapted to form first collimated light from the first light source; a carrier adapted to guide light and comprising a first primary light redirecting structure and a second primary light redirecting structure; and a detector device for encoding the position of an object with respect to an active area of an encoding plane; wherein the first primary light redirecting structure is adapted to redirect at least a part of a first light beam through the active area into the second primary light redirecting structure; and wherein the second primary light redirecting structure is adapted to redirect light received from the first primary light redirecting structure onto the detector device. Thereby is achieved that a collimated light beam is propagated along the carrier and from the carrier into the active area via the first primary light redirecting means.Type: GrantFiled: July 16, 2010Date of Patent: June 30, 2015Assignee: O-Net Wavetouch LimitedInventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
-
Patent number: 8540400Abstract: The present invention relates to an encoding device, such as an optical position encoder, for encoding input from an object, and a method for encoding input from an object, for determining a position of an object that interferes with light of the device. The encoding device comprises a light source, a waveguide, a number of redirecting structures, and a detector. By means of the waveguide and the number of redirecting structures, light from the light source is guided towards the detector along a path that includes traversing an area in a space next to the planar waveguide. An object may be positioned in the area in the space and may interfere with the light, which interference may be encoded into a position or activation.Type: GrantFiled: July 16, 2010Date of Patent: September 24, 2013Assignee: O-Net Wavetouch LimitedInventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
-
Publication number: 20130222786Abstract: The present invention relates to a compact, reliable and low-cost vector velocimeter for example for determining velocities of particles suspended in a gas or fluid flow, or for determining velocity, displacement, rotation, or vibration of a solid surface, the vector velocimeter comprising a laser assembly for emission of a measurement beam for illumination of an object in a measurement volume with coherent light whereby a signal beam emanating from the object in the measurement volume is formed in response to illumination of the object by the measurement beam, a reference beam generator for generation of a reference beam, a detector system comprising a first detector arrangement arranged in such a way that the signal beam and the reference beam are incident upon the first detector arrangement with the reference beam propagating at an angle relative to a signal beam, and wherein the first detector array comprises a first detector array of first detector elements, each of the first detector elements convertType: ApplicationFiled: July 18, 2011Publication date: August 29, 2013Inventors: Steen Hanson, Michael Linde Jakobsen, Theis Iversen, Peter John Rodrigo, Christian Pedersen
-
Publication number: 20130087695Abstract: The present invention relates to a method (60) and device (2, 40, 50) for detecting presence of an object (52) by means of influencing propagation of light (16) arriving to a detector (14). The device (2, 40, 50) for detecting presence of the object (52) at the device (2, 40, 50) comprises a light source (4), a first redirecting structure (6), a second redirecting structure (10), and a light detector device (14). The light source (4) is adapted to emit light (16) towards the first redirecting structure (6), which is adapted to redirect light (16) from the light source (4) towards the second redirecting structure (10), which is adapted to return light (16) from the first redirecting structure (6) back towards the first redirecting structure (6), which is adapted to redirect light (16) from the second redirecting structure (10) towards the light detector device (14).Type: ApplicationFiled: January 4, 2011Publication date: April 11, 2013Applicant: OPDI TECHNOLOGIES A/SInventors: Henrik Chresten Pedersen, Michael Linde Jakobsen, Vagn Steen Gruner Hanson
-
Publication number: 20120188773Abstract: The present invention relates to an encoding device, such as an optical position encoder, for encoding input from an object, and a method for encoding input from an object, for determining a position of an object that interferes with light of the device. The encoding device comprises a light source, a waveguide, a number of redirecting structures, and a detector. By means of the waveguide and the number of redirecting structures, light from the light source is guided towards the detector along a path that includes traversing an area in a space next to the planar waveguide. An object may be positioned in the area in the space and may interfere with the light, which interference may be encoded into a position or activation.Type: ApplicationFiled: July 16, 2010Publication date: July 26, 2012Applicant: OPDI TECHNOLOGIES A/SInventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
-
Publication number: 20120170056Abstract: The present invention relates to a device for encoding a position of an object, comprising a first light source; a first collimating element adapted to form first collimated light from the first light source; a carrier adapted to guide light and comprising a first primary light redirecting structure and a second primary light redirecting structure; and a detector device for encoding the position of an object with respect to an active area of an encoding plane; wherein the first primary light redirecting structure is adapted to redirect at least a part of a first light beam through the active area into the second primary light redirecting structure; and wherein the second primary light redirecting structure is adapted to redirect light received from the first primary light redirecting structure onto the detector device. Thereby is achieved that a collimated light beam is propagated along the carrier and from the carrier into the active area via the first primary light redirecting means.Type: ApplicationFiled: July 16, 2010Publication date: July 5, 2012Applicant: OPDI TECHNOLOGIES A/SInventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson, Henrik Chresten Pedersen
-
Publication number: 20110025620Abstract: The present invention relates to an optical touch-sensitive device and a method of determining a position and determining a position change of an object contacting an optical touch sensitive device. In particular, the present invention relates to an optical touch pad and a method of determining a position and determining a position change of an object contacting an optical touch pad. A touch-sensitive device, according to the present invention may comprise a light source, a touch-sensitive waveguide, a detector array, and a first light redirecting member, wherein at least a part of the light propagating towards a specific point of the detector array is prevented from being incident upon the specific point of the detector array when an object contacts a touch-sensitive surface of the touch-sensitive waveguide at a corresponding specific contact point.Type: ApplicationFiled: January 12, 2009Publication date: February 3, 2011Applicant: OPDI TECHNOLOGIES A/SInventors: Michael Linde Jakobsen, Vagn Steen Gruner Hanson
-
Patent number: 7209291Abstract: The present invention relates to a compact and inexpensive optical displacement sensor that does not require accurate control of the distance to the object. A repetitive optical structure is utilized for formation of a repetitive optical signal emitted by an illuminated moving object. The repetitive optical structure is illuminated by the light source for formation of a fringe pattern (similar to Laser Doppler Anemometry), and/or, an object is illuminated by the light source and the repetitive optical structure diverts light from the illuminated object onto light sensors. A speckle pattern is formed on the object by the illumination. The speckle pattern moves with movement of the object, and speckle pattern movement is determined without a need for imaging the object onto the repetitive optical structure. Since the speckle pattern is not imaged onto the optical member, the distance and possible distance changes between the object and the optical member substantially do not affect system performance.Type: GrantFiled: February 13, 2003Date of Patent: April 24, 2007Assignee: Danmarks Tekniske UniversitetInventors: Steen Hanson, Bjarke Rose, Michael Linde Jakobsen
-
Patent number: 6859267Abstract: The present invention relates to an apparatus for use in the determination of a condition or state of an object based on quasi-elastic interaction between the object and light transmitted to the object, the apparatus comprising a beam splitter arrangement for splitting an incoming light beam of wavelength, ?, into a diffracted light beam and an undiffracted light beam, the beam splitter arrangement comprising a first and a second diffractive member, the first diffractive member transforming the light beam emitted by the light source into the diffracted and the undiffracted light beams, the second diffractive member receiving the diffracted light beam and diffracting the received light beam in a direction substantially parallel to the undiffracted light beam from the first diffractive member, wherein the diffracted light beam, after being diffracted by the second diffractive member, and the undiffracted light beam from the first diffractive member are separated by a distance, d, said distance, d, being dependeType: GrantFiled: July 3, 2003Date of Patent: February 22, 2005Assignee: Kamstrup A/SInventors: Carsten Dam-Hansen, Steven Richard Kitchen, Michael Linde Jakobsen
-
Publication number: 20040036873Abstract: The present invention relates to an apparatus for use in the determination of a condition or state of an object based on quasi-elastic interaction between the object and light transmitted to the object, the apparatus comprising a beam splitter arrangement for splitting an incoming light beam of wavelength, &lgr;, into a diffracted light beam and an undiffracted light beam, the beam splitter arrangement comprising a first and a second diffractive member, the first diffractive member transforming the light beam emitted by the light source into the diffracted and the undiffracted light beams, the second diffractive member receiving the diffracted light beam and diffracting the received light beam in a direction substantially parallel to the undiffracted light beam from the first diffractive member, wherein the diffracted light beam, after being diffracted by the second diffractive member, and the undiffracted light beam from the first diffractive member are separated by a distance, d, said distance, d, being depType: ApplicationFiled: July 3, 2003Publication date: February 26, 2004Inventors: Carsten Dam-Hansen, Steven Richard Kitchen, Michael Linde Jakobsen