Patents by Inventor Jesper Glückstad
Jesper Glückstad 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).
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Patent number: 9259741Abstract: There is presented a system 10,100 for sorting microscopic objects 76, 78, 80, where the system comprises a fluid channel 66 with an inlet 68 and an outlet 70, where the fluid channel is arranged for allowing the fluid flow to be laminar. The system furthermore comprises a detection system 52 which enables detecting microscopic objects in the fluid channel and furthermore enables determining their position. The system furthermore comprises a controller 67, such as a computer, which receives the positions and accordingly controls a source of light beams so as to “shoot” light beams towards selected microscopic objects so as to “push” them into a new position. The system thereby enables sorting the selected microscopic objects. In more specific embodiments, the detection system furthermore assigns different categories to different microscopic objects, so as to enable sorting based on multiple categories.Type: GrantFiled: December 28, 2012Date of Patent: February 16, 2016Assignee: Danmarks Tekniske UniversitetInventor: Jesper Glückstad
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Patent number: 9239630Abstract: According to the present invention there is provided an input device (100) comprising a plurality of keys, at least one detection structure (107), and at least one display (104), wherein: each of the plurality of keys have a depressible key cap (101) with an at least semi-transparent top surface, the at least one detection structure is configured for detecting individual depression of each of the plurality of key caps, and the at least one display (104) is configured for providing image information of individual labels (103) for each key of the plurality of keys. Furthermore, the at least one display is arranged between the at least one detection structure (107) and the plurality of key caps, such that the individual labels (103) of the plurality of keys are viewable via the transparent top surfaces of the respective key caps.Type: GrantFiled: June 25, 2012Date of Patent: January 19, 2016Assignee: DANMARKS TEKNISKE UNIVERSITETInventors: Finn Pedersen, Jesper Glückstad
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Publication number: 20150355227Abstract: The present invention relates to a microdevice (100) for emitting electromagnetic radiation onto an associated object. Simultaneous non-contact spatial control over the microdevice in terms of translational movement in three dimensions, and rotational movement around at least two axes, preferably three axes, is possible. The microdevice further comprises a nanowire (150) being arranged for emitting electromagnetic radiation onto said associated object. This is advantageous for obtaining better spatial control of the microdevice comprising the nanowire, and this enables that light could more effectively be coupled into the nanowire. This opens up for a much wider application of nanowires in optics because of the improved spatial control.Type: ApplicationFiled: January 10, 2014Publication date: December 10, 2015Applicant: Danmarks Tekniske UniversitetInventor: Jesper GLÜCKSTAD
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Publication number: 20150355071Abstract: The present invention relates to a system for optical sorting of microscopic objects and corresponding method. An optical detection system (52) is capable of determining the positions of said first and/or said second objects. One or more force transfer units (200, 205, 210, 215) are placed in a first reservoir, the one or more force units being suitable for optical momentum transfer. An electromagnetic radiation source (42) yields a radiation beam (31, 32) capable of optically displacing the force transfer units from one position to another within the first reservoir (1R). The force transfer units are displaced from positions away from the first objects to positions close to the first objects, and then displacing the first objects via a contact force (300) between the first objects and the force transfer units facilitates an optical sorting of the first objects and the second objects.Type: ApplicationFiled: February 4, 2014Publication date: December 10, 2015Applicant: Danmarks Tekniske UniversitetInventor: Jesper GLÜCKSTAD
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Publication number: 20150042780Abstract: The invention relates to 4F-based optical phase imaging system and in particular to reconstructing quantitative phase information of an object when using such systems. The invention applies a two-dimensional, complex spatial light modulator (SLM) to impress a complex spatial synthesized modulation in addition to the complex spatial modulation impressed by the object. This SLM is arranged so that the synthesized modulation is superimposed with the object modulation and is thus placed at an input plane to the phase imaging system. By evaluating output images from the phase imaging system, the synthesized modulation is selected to optimize parameters in the output image which improves the reconstruction of qualitative and quantitative object phase information from the resulting output images.Type: ApplicationFiled: January 7, 2013Publication date: February 12, 2015Inventors: Darwin Z. Palima, Jesper Glückstad
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Patent number: 8921765Abstract: The present invention relates to a system 100 for independently holding and manipulating one or more microscopic objects 158 and for targeting at least a part of the one or more microscopic objects within a trapping volume 102 with electromagnetic radiation 138. The system comprises trapping means for holding and manipulating the one or more microscopic objects and electromagnetic radiation targeting means (116). The light means comprising a light source and a spatial light modulator which serve to modify the light from the light source so as to enable specific illumination of at least a part of the one or more microscopic objects. The trapping means and the electromagnetic radiation targeting means (116) are enabled to function independently of each other, so that the trapped objects may be moved around without taking being dependent on which parts are being targeted and vice versa.Type: GrantFiled: December 28, 2012Date of Patent: December 30, 2014Assignee: Danmarks Tekniske UniversitetInventors: Jesper Glückstad, Darwin Palima
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Publication number: 20140367315Abstract: There is presented a system 10,100 for sorting microscopic objects 76, 78, 80, where the system comprises a fluid channel 66 with an inlet 68 and an outlet 70, where the fluid channel is arranged for allowing the fluid flow to be laminar. The system furthermore comprises a detection system 52 which enables detecting microscopic objects in the fluid channel and furthermore enables determining their position. The system furthermore comprises a controller 67, such as a computer, which receives the positions and accordingly controls a source of light beams so as to “shoot” light beams towards selected microscopic objects so as to “push” them into a new position. The system thereby enables sorting the selected microscopic objects. In more specific embodiments, the detection system furthermore assigns different categories to different microscopic objects, so as to enable sorting based on multiple categories.Type: ApplicationFiled: December 28, 2012Publication date: December 18, 2014Inventor: Jesper Glückstad
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Publication number: 20140346335Abstract: The present invention relates to a system 100 for independently holding and manipulating one or more microscopic objects 158 and for targeting at least a part of the one or more microscopic objects within a trapping volume 102 with electromagnetic radiation 138. The system comprises trapping means for holding and manipulating the one or more microscopic objects and electromagnetic radiation targeting means (116). The light means comprising a light source and a spatial light modulator which serve to modify the light from the light source so as to enable specific illumination of at least a part of the one or more microscopic objects. The trapping means and the electromagnetic radiation targeting means (116) are enabled to function independently of each other, so that the trapped objects may be moved around without taking being dependent on which parts are being targeted and vice versa.Type: ApplicationFiled: December 28, 2012Publication date: November 27, 2014Inventors: Jesper Glückstad, Darwin Palima
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Publication number: 20140300550Abstract: According to the present invention there is provided an input device (42) comprising a plurality of keys (50), at least one detection structure (38), and at least one display (1202), wherein: each of the plurality of keys have a depressible key cap (32) with an at least semi-transparent top surface (34), the at least one detection structure (38) is configured for detecting individual depression of each of the plurality of key caps (32), and the at least one display is configured for providing image information of individual labels (6) for each key of the plurality of keys. Furthermore, the at least one display is arranged between the at least one detection structure (38) and the plurality of key caps (32), such that the individual labels (6) of the plurality of keys are viewable via the transparent top surfaces (34) of the respective key caps (32).Type: ApplicationFiled: June 25, 2012Publication date: October 9, 2014Inventors: Finn Pedersen, Jesper Glückstad
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Publication number: 20140247219Abstract: According to the present invention there is provided an input device (100) comprising a plurality of keys, at least one detection structure (107), and at least one display (104), wherein: each of the plurality of keys have a depressible key cap (101) with an at least semi-transparent top surface, the at least one detection structure is configured for detecting individual depression of each of the plurality of key caps, and the at least one display (104) is configured for providing image information of individual labels (103) for each key of the plurality of keys. Furthermore, the at least one display is arranged between the at least one detection structure (107) and the plurality of key caps, such that the individual labels (103) of the plurality of keys are viewable via the transparent top surfaces of the respective key caps.Type: ApplicationFiled: June 25, 2012Publication date: September 4, 2014Applicant: Danmarks Tekniske UniversitetInventors: Finn Pedersen, Jesper Glückstad
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Publication number: 20140182021Abstract: The present invention relates to a microdevice for emitting electromagnetic radiation, the microdevice being adapted so as to be controllable by electromagnetic radiation, such as light. The microdevice comprises a first electromagnetic radiation emitting unit arranged to emit electromagnetic radiation 1728, so as to be able to irradiate electromagnetic radiation onto a structure of interest 1740. The microdevice further comprising means for enabling non-contact spatial control over the microdevice in terms of translational movement in three dimensions, and rotational movement around at least two axes. The present invention thus provides an instrument which enables controlled irradiation of light onto very well defined areas on the nano-scale of objects of interest. Furthermore, the device enables receipt of light and may thus work as an optically controlled microendoscope.Type: ApplicationFiled: May 16, 2012Publication date: June 26, 2014Applicant: DANMARKS TEKNISKE UNIVERSITETInventors: Jesper Glückstad, Darwin Palima
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Publication number: 20140084066Abstract: The invention relates to encoding phase information in micro-grating-based anti-counterfeit devices such as diffractive optically variable identification devices (DOVID). The invention utilizes that alignment of grating line positions in different micro-gratings having common line spacing and orientation, can be used as a new, additional information channel in DOVIDs. By displacing grating line positions in different pixels relative to a common reference grating, relative shifts in alignment are introduced that do not affect the visual effects encoded in the DOVID. The relative shifts in line position alignment induce relative shifts in the phase of light diffracted by the DOVID, so as to introduce a spatial phase shift distribution corresponding to the distribution of position shifts over the DOVID. Such spatial phase shift distribution is not visible, and the phase encoded information is thereby invisible unless a reader based on e.g. generalized phase contrast is applied.Type: ApplicationFiled: April 27, 2012Publication date: March 27, 2014Applicant: DANMARKS TEKNISKE UNIVERSITETInventors: Jesper Glückstad, Darwin Palima
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Publication number: 20140002367Abstract: The present invention relates to a binocular device (44) and a system (40) including a binocular device (44) configured for displaying one or more labels for an input device (2), such as a keyboard or a control panel, comprising a plurality of parts (4, 6) configured for activation and registration by depression. The binocular device (44) is configured for displaying a label of an activation part (4) as a three-dimensional label at the activation part (4).Type: ApplicationFiled: December 21, 2011Publication date: January 2, 2014Inventors: Jesper Glückstad, Finn Pedersen
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Publication number: 20140002366Abstract: The present invention relates to an input device (2), such as a keyboard, comprising a plurality of activation parts (4) for depression, at least one registration part (6) for individual registration of depression of activation parts, and at least one image displaying part (8), where depression of the activation parts (4) provides tactile feedback to a user. The at least one image displaying part (8) is configured for displaying a label of an activation part (4) as a three-dimensional label.Type: ApplicationFiled: December 21, 2011Publication date: January 2, 2014Inventors: Jesper Glückstad, Finn Pedersen
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Publication number: 20130082932Abstract: The invention relates to a dynamic display keyboard comprising a plurality of key elements, each key element comprises a transmitting part capable of transmitting at least a part of light incident on the transmitting part; a mat comprising a plurality of elevated elements capable of providing a tactile feedback and providing passage of light through the elevated elements; wherein each key element is fixedly connected to at least one respective elevated element; an optical element for each key element; wherein each optical element is adapted to focus an incident light beam onto a transmitting part; at least one display unit capable of providing light to the plurality of transmitting parts via the optical element; and wherein the light provided to a transmitting part defines a visual value of the corresponding key element. In this way, the keyboard is dynamic and further is able to provide a tactile feedback in response to a user action directed towards a key of the keyboard.Type: ApplicationFiled: March 31, 2011Publication date: April 4, 2013Applicant: DANMARKS TEKNISKE UNIVERSITETInventors: Jesper Glückstad, Finn Pedersen
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Publication number: 20130076634Abstract: The invention relates to a dynamic display keyboard comprising a plurality of key elements (101), each key element (101) comprises a transmitting part (102) capable of transmitting at least a part of light incident on the transmitting part; a mat (105) comprising a plurality of elevated elements (106, 107, 109, 201, 202) capable of providing a tactile feedback and comprising an opening (113); wherein each key element (101) is fixedly connected to at least one respective elevated element (106, 107, 109, 201, 202) via at least one spacer (1201); at least one display unit (111, 911) comprising a moveable part (901) and wherein at least a part (904) of the moveable part is placed between the key element (101) and the elevated element (106, 107, 109, 201, 202); and wherein the light propagating through a transmitting part (102) defines a visual value of the corresponding key element (101).Type: ApplicationFiled: March 31, 2011Publication date: March 28, 2013Applicant: DANMARKS TEKNISKE UNIVERSITETInventors: Finn Pedersen, Jesper Glückstad
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Publication number: 20130021257Abstract: The invention relates to a dynamic display keyboard comprising a plurality of key elements, each key element comprises a transmitting part capable of transmitting at least a part of light incident on the transmitting part; an elastic mat comprising a plurality of elevated elements capable of providing a tactile feedback and providing passage of light through the elevated elements; wherein each key element is fixedly connected to at least one respective elevated element; wherein an elevated element provides the tactile feedback in response to a user action directed against a respective key element fixedly connected to the respective elevated element; wherein the light provided to a transmitting part defines a visual value of the corresponding key element; and wherein the elastic mat is positioned between the display and the plurality of key elements. In this way, the dynamic display keyboard is able to provide a tactile feedback in response to a user action directed towards a key of the keyboard.Type: ApplicationFiled: March 31, 2011Publication date: January 24, 2013Applicant: DANMARKS TEKNISKE UNIVERSITETInventors: Finn Pedersen, Jesper Glückstad
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Patent number: 8203788Abstract: The present invention relates to an electromagnetic beam converter and a method for conversion of an input beam of electromagnetic radiation having a bell shaped intensity profile a(x,y) into an output beam having a prescribed target intensity profile I(x?,y?) based on a further development of the generalized phase contrast method.Type: GrantFiled: September 17, 2008Date of Patent: June 19, 2012Assignee: Danmarks Tekinske UniversitetInventor: Jesper Glückstad
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Patent number: 7292749Abstract: A system is provided for conversion of a first electromagnetic field into a desired second electromagnetic field, for example for coupling modes between waveguides or into microstructured waveguides. The system includes a complex spatial electromagnetic field converter that is positioned for reception of at least a part of the first electromagnetic field and that is adapted for conversion of the received field into the desired electromagnetic field, and wherein at least one of the first and second fields matches a mode of a microstructured waveguide. An advantage of the system is that the full effect of an incident light beam may be utilized for exciting a desired complicated mode of a specific waveguide. Another advantage is that the power of the incident beam may be coupled into one specific mode and not others, whereby a high mode suppression ratio may be achieved.Type: GrantFiled: October 15, 2002Date of Patent: November 6, 2007Assignee: Danmarks Tekniske UniversitetInventors: Jesper Glückstad, Thorkild Sørensen
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Patent number: 6842285Abstract: The present invention provides a method and a system for generating a phase-modulated wave front. According to the present invention, the spatial phase-modulation is not performed on the different parts of the wave front individually as in known POSLMs. Rather, the spatial phase-modulation of the present invention is performed by generating an amplitude modulation in the wave front, Fourier or Fresnel transforming the amplitude modulated wave front, filtering Fourier or Fresnel components of the Fourier or Fresnel distribution with a spatial filter such as a phase contrast filter, and regenerating the wave front whereby the initial amplitude modulation has transformed into a phase-modulation.Type: GrantFiled: December 19, 2001Date of Patent: January 11, 2005Assignee: Riso National LaboratoryInventor: Jesper Glückstad