Patents by Inventor Philippe Renaud-Goud
Philippe Renaud-Goud 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: 11999453Abstract: Protective mask (1) comprising a frame (5) for mounting on a user's face, a window (2) carried by said frame, an optical display system (10) which is capable of projecting an image, and a prism (20) capable of receiving said image from said display and forwarding it, characterised in that the prism (20) has a first (21) and a second (22) active face and a basal face (23), the window having, on its inner face (3), a projection area (30), and said display and said prism are configured so that said display projects said image onto the first active face (21), the image crosses the prism and is reflected by the basal face (23) to the second active face (22), the image is projected from said second active face (22) onto said reflection area (30) of said window (2), and said window projects said image into a user's eye.Type: GrantFiled: June 6, 2019Date of Patent: June 4, 2024Assignee: MicrooledInventors: Eric Marcellin-Dibon, Philippe Renaud-Goud, Cédric Siourakan-Badalou
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Patent number: 9612575Abstract: A holographic projection apparatus and a method for magnifying a virtual visibility region, for observing a reconstructed scene with at least one light modulation device and with at least one light source having sufficiently coherent light for generating a wavefront of a scene that is coded in the light modulation device. By means of imaging the wavefront into a viewer plane, it is possible to generate the virtual visibility region for observing the reconstructed scene. The virtual visibility region has at least two virtual viewer windows. In this case, the virtual viewer windows are dimensioned such that the reconstructed scene can always be observed without tracking of the viewer windows upon movement of a viewer in the viewer plane.Type: GrantFiled: September 18, 2015Date of Patent: April 4, 2017Assignee: SEEREAL TECHNOLOGIES S.A.Inventor: Philippe Renaud-Goud
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Publication number: 20160004220Abstract: A holographic projection apparatus and a method for magnifying a virtual visibility region, for observing a reconstructed scene with at least one light modulation device and with at least one light source having sufficiently coherent light for generating a wavefront of a scene that is coded in the light modulation device. By means of imaging the wavefront into a viewer plane, it is possible to generate the virtual visibility region for observing the reconstructed scene. The virtual visibility region has at least two virtual viewer windows. In this case, the virtual viewer windows are dimensioned such that the reconstructed scene can always be observed without tracking of the viewer windows upon movement of a viewer in the viewer plane.Type: ApplicationFiled: September 18, 2015Publication date: January 7, 2016Inventor: Philippe RENAUD-GOUD
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Patent number: 9158280Abstract: A holographic projection apparatus and a method for magnifying a virtual visibility region, for observing a reconstructed scene with at least one light modulation device and with at least one light source having sufficiently coherent light for generating a wavefront of a scene that is coded in the light modulation device. By means of imaging the wavefront into a viewer plane, it is possible to generate the virtual visibility region for observing the reconstructed scene. The virtual visibility region has at least two virtual viewer windows. In this case, the virtual viewer windows are dimensioned such that the reconstructed scene can always be observed without tracking of the viewer windows upon movement of a viewer in the viewer plane.Type: GrantFiled: November 19, 2012Date of Patent: October 13, 2015Assignee: SEEREAL TECHNOLOGIES S.A.Inventor: Philippe Renaud-Goud
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Patent number: 8593710Abstract: A holographic projection device comprises for the reconstruction of scenes at least one light source which emits sufficiently coherent light for the generation of a wave front. Further, the projection device comprises at least one light modulator device containing modulation element, said projection device being of a two-dimensional design. The light modulator device and a scanning element are combined such that the light emitted by the scanning element only scans one one-dimensional arrangement of modulation elements of the two-dimensional light modulator device at a time.Type: GrantFiled: May 16, 2007Date of Patent: November 26, 2013Assignee: Seereal Technologies S.A.Inventor: Philippe Renaud-Goud
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Patent number: 8398243Abstract: The present invention relates to a projection device for holographic reconstruction of scenes, said device comprising at least one light modulator device and at least one light source which emits sufficiently coherent light for the generation of a wave front of a scene, which is encoded in the light modulator device. A Fourier transform (FT) of the light which is emitted by the light source and modulated by the light modulator device is projected by a projection means on to a screen. Further, the wave front which is encoded on the light modulator device is projected by the projection means into at least one virtual observer window in an observer plane. For tracking the observer window according to a change in an eye position of the at least one observer, the inventive device comprises at least one deflection means, which is disposed between the light modulator device and the screen.Type: GrantFiled: January 15, 2007Date of Patent: March 19, 2013Assignee: Seereal Technologies S.A.Inventor: Philippe Renaud-Goud
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Patent number: 8390676Abstract: The invention relates to a method and a playback device for a two- and/or three-dimensional illustration, having at least one light source, at least one light modulation device, a display screen, and a tracking system for tracking a virtual viewer window of a viewer plane, in which at least one viewer is located. This tracking system has a position detection system for determining the eye positions of the at least one viewer in the viewer plane, a tracking device, and a control device for activating and controlling the tracking device, and is disposed between the light modulation device and the display screen. In order to track the viewer window along an optical axis of the playback device, a focal width on the image side of an optical system of the tracking device is constant.Type: GrantFiled: August 24, 2007Date of Patent: March 5, 2013Assignee: SeeReal Technologies S.A.Inventors: Stanislas Flon, Philippe Renaud-Goud
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Patent number: 8335028Abstract: This invention relates to a holographic projection device with an array of mirror elements in the form of micro-mirrors. The holographic projection device comprises at least one light modulator device, which contains the array of mirror elements, for an enlargement of a reconstruction space for a reconstructed scene. Each mirror element is coupled with at least one actuator. The actuators tilt the corresponding mirror elements and/or displace them axially in at least one direction. Thereby, a wave front for the representation of a reconstructed scene is directly modulated. The holographic projection device comprises an optical system for the projection of the modulated wave front into at least one observer window in an observer plane.Type: GrantFiled: January 15, 2007Date of Patent: December 18, 2012Assignee: Seereal Technologies S.A.Inventor: Philippe Renaud-Goud
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Patent number: 8314982Abstract: In a holographic projection apparatus a virtual visibility region is magnified, for observing a reconstructed scene with at least one light modulation device and with at least one light source having sufficiently coherent light for generating a wavefront of a scene that is coded in the light modulation device. By means of imaging the wavefront into a viewer plane, it is possible to generate the virtual visibility region for observing the reconstructed scene. The virtual visibility region has at least two virtual viewer windows. In this case, the virtual viewer windows are dimensioned such that the reconstructed scene can always be observed without tracking of the viewer windows upon movement of a viewer in the viewer plane.Type: GrantFiled: December 12, 2007Date of Patent: November 20, 2012Assignee: Seereal Technologies S.A.Inventor: Philippe Renaud-Goud
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Patent number: 8264774Abstract: The present invention relates to a method and device for the generation of reconstructions of information encoded on spatial light modulators by way of illumination with coherent incident waves. The invention includes the following steps: Splitting of the incident wave into at least two incident sub-waves, Modulation of the incident sub-waves with the help of selected apodization functions so to form modulated incident sub-waves, Direction of the modulated incident sub-waves towards the corresponding, spatially separated and pixel-matrix-shifted spatial light modulators, Diffraction of the modulated incident sub-waves at the encoded pixels of the respective spatial light modulators, Additive combination of the sub-waves emitted by the respective spatial light modulators to form one common emitted wave, and Transformation of the emitted wave into the Fourier plane with the help of a projection system.Type: GrantFiled: June 22, 2007Date of Patent: September 11, 2012Assignee: SeeReal Technologies S.A.Inventors: Philippe Renaud-Goud, Pauline Colas
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Patent number: 8208012Abstract: The invention relates to a method for the multimodal representation of image contents on a display unit for video holograms. Said unit comprises at least one or several light sources (LS), an optical system (L), and a spatial light modulator SLM (S) with hologram contents. According to the inventive method, the unit directs the wavefront that an object would emit to the associated eye positions (EP) such that the viewer sees the reconstruction of the scene and different views are presented to the eyes by means of temporal or spatial multiplexing in order to generate the stereo effect.Type: GrantFiled: December 20, 2006Date of Patent: June 26, 2012Assignee: SeeReal Technologies S.A.Inventors: Norbert Leister, Ralf Haussler, Philippe Renaud-Goud
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Publication number: 20100271676Abstract: The present invention relates to a projection device for holographic reconstruction of scenes, said device comprising at least one light modulator device and at least one light source which emits sufficiently coherent light for the generation of a wave front of a scene, which is encoded in the light modulator device. A Fourier transform (FT) of the light which is emitted by the light source and modulated by the light modulator device is projected by a projection means on to a screen. Further, the wave front which is encoded on the light modulator device is projected by the projection means into at least one virtual observer window in an observer plane. For tracking the observer window according to a change in an eye position of the at least one observer, the inventive device comprises at least one deflection means, which is disposed between the light modulator device and the screen.Type: ApplicationFiled: January 15, 2007Publication date: October 28, 2010Inventor: Philippe Renaud-Goud
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Publication number: 20100188718Abstract: The present invention relates to a method and device for the generation of reconstructions of information encoded on spatial light modulators by way of illumination with coherent incident waves. The invention includes the following steps: Splitting of the incident wave into at least two incident sub-waves, Modulation of the incident sub-waves with the help of selected apodisation functions so to form modulated incident sub-waves, Direction of the modulated incident sub-waves towards the corresponding, spatially separated and pixel-matrix-shifted spatial light modulators, Diffraction of the modulated incident sub-waves at the encoded pixels of the respective spatial light modulators, Additive combination of the sub-waves emitted by the respective spatial light modulators to form one common emitted wave, and Transformation of the emitted wave into the Fourier plane with the help of a projection system.Type: ApplicationFiled: June 22, 2007Publication date: July 29, 2010Applicant: SEEREAL TECHNOLOGIES S.A.Inventors: Philippe Renaud-Goud, Pauline Colas
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Publication number: 20100079831Abstract: A holographic projection apparatus and a method is disclosed for magnifying a virtual visibility region, for observing a reconstructed scene with at least one light modulation device and with at least one light source having sufficiently coherent light for generating a wavefront of a scene that is coded in the light modulation device. By means of imaging the wavefront into a viewer plane, it is possible to generate the virtual visibility region for observing the reconstructed scene. The virtual visibility region has at least two virtual viewer windows. In this case, the virtual viewer windows are dimensioned such that the reconstructed scene can always be observed without tracking of the viewer windows upon movement of a viewer in the viewer plane.Type: ApplicationFiled: December 12, 2007Publication date: April 1, 2010Applicant: See Real Technologles S.A.Inventor: Philippe Renaud-Goud
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Publication number: 20100045781Abstract: The invention relates to a method and a playback device for a two- and/or three-dimensional illustration, having at least one light source, at least one light modulation device, a display screen, and a tracking system for tracking a virtual viewer window of a viewer plane, in which at least one viewer is located. This tracking system has a position detection system for determining the eye positions of the at least one viewer in the viewer plane, a tracking device, and a control device for activating and controlling the tracking device, and is disposed between the light modulation device and the display screen. In order to track the viewer window along an optical axis of the playback device, a focal width on the image side of an optical system of the tracking device is constant.Type: ApplicationFiled: August 24, 2007Publication date: February 25, 2010Applicant: SeeReal Technologies S.A.Inventors: Stanislas Flon, Philippe Renaud-Goud
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Publication number: 20100033784Abstract: A holographic projection device comprises for the reconstruction of scenes at least one light source which emits sufficiently coherent light for the generation of a wave front. Further, the projection device comprises at least one light modulator device containing modulation elements, said projection device being of a two-dimensional design. The light modulator device and a scanning element are combined such that the light emitted by the scanning element only scans one one-dimensional arrangement of modulation elements of the two-dimensional light modulator device at a time.Type: ApplicationFiled: May 16, 2007Publication date: February 11, 2010Inventor: Philippe Renaud-Goud
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Publication number: 20090219385Abstract: The invention relates to a method for the multimodal representation of image contents on a display unit for video holograms. Said unit comprises at least one or several light sources (LS), an optical system (L), and a spatial light modulator SLM (S) with hologram contents. According to the inventive method, the unit directs the wavefront that an object would emit to the associated eye positions (EP) such that the viewer sees the reconstruction of the scene and different views are presented to the eyes by means of temporal or spatial multiplexing in order to generate the stereo effect.Type: ApplicationFiled: December 20, 2006Publication date: September 3, 2009Inventors: Norbert Leister, Ralf Haussler, Philippe Renaud-Goud
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Publication number: 20090086296Abstract: This invention relates to a holographic projection device with an array of mirror elements in the form of micro-mirrors. The holographic projection device comprises at least one light modulator device, which contains the array of mirror elements, for an enlargement of a reconstruction space for a reconstructed scene. Each mirror element is coupled with at least one actuator. The actuators tilt the corresponding mirror elements and/or displace them axially in at least one direction. Thereby, a wave front for the representation of a reconstructed scene is directly modulated. The holographic projection device comprises an optical system for the projection of the modulated wave front into at least one observer window in an observer plane.Type: ApplicationFiled: January 15, 2007Publication date: April 2, 2009Inventor: Philippe Renaud-Goud