Patents by Inventor David Brotherton-Ratcliffe
David Brotherton-Ratcliffe 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: 7262891Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. In one embodiment the data are generated entirely by a computer as a 3-D (animated) model. In another embodiment the data are generated from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, which avoids the usual vibration problems encountered at high rates of production and the installation in normal working environments, is used to record composite holograms on an holographic emulsion using a special optical design.Type: GrantFiled: November 2, 2005Date of Patent: August 28, 2007Assignee: XYZ Imaging, Inc.Inventors: David Brotherton-Ratcliffe, Florian Michel Robert Vergnes, Alexey Rodin, Mikhail Grichine
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Patent number: 7199814Abstract: A direct write holographic printer for producing RGB color reflection holograms is disclosed. A Nd:YLF crystal (1) in a laser cavity is excited to produce an emission at 1313 nm which is frequency converted by doubling to 656.5 nm and by tripling to 437.7 nm. In a separate cavity a similar Nd:YLF crystal (1a) is synchronously or asynchronously excited to produce an emission at 1047.1 nm (or at the related line of 1053 nm) which is frequency converted by doubling to 523.6 nm (or 526.5 nm). The emissions at 437.7 nm and 656.5 nm are combined co-linearly with the emission at 523.6 nm (or 526.5 nm) to produce a single RGB pulsed laser beam.Type: GrantFiled: October 8, 2001Date of Patent: April 3, 2007Assignee: XYZ Imaging, Inc.Inventors: Alexey Rodin, Florian Michel Robert Vergnes, David Brotherton-Ratcliffe
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Publication number: 20070070479Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods.Type: ApplicationFiled: September 26, 2006Publication date: March 29, 2007Inventors: David Brotherton-Ratcliffe, Florian Vergnes, Alexey Rodin, Mikhail Grichine
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Publication number: 20070030544Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. In one embodiment the data are generated entirely by a computer as a 3-D (animated) model. In another embodiment the data are generated from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, which avoids the usual vibration problems encountered at high rates of production and the installation in normal working environments, is used to record composite holograms on an holographic emulsion using a special optical design.Type: ApplicationFiled: November 2, 2005Publication date: February 8, 2007Applicant: XYZ Imaging, Inc.Inventors: David Brotherton-Ratcliffe, Florian Vergnes, Alexey Rodin, Mikhail Grichine
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Patent number: 7161722Abstract: A holographic printer is disclosed which produces an intermediate hologram H3 and uses the intermediate hologram H3 to produce a white light viewable hologram H2.Type: GrantFiled: October 16, 2002Date of Patent: January 9, 2007Assignee: Geola Technologies Ltd.Inventors: David Brotherton-Ratcliffe, Alexey Rodin
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Publication number: 20060126682Abstract: A pulsed multiple colour laser system is disclosed having particular application for incorporation into a digital holographic printer for producing RGB colour reflection holograms. A Nd:YLF crystal (1) in a laser cavity is excited to produce an emission at (1313) nm which is frequency converted by doubling to 656.3 nm and by tripling to 437.7 nm. In a separate cavity a similar Nd:YLF crystal (1a) is synchronously or asynchronously excited to produce an emission at 1047.1 nm (or at the related line of 1053 nm) which is frequency converted by doubling to 523.6 nm (or 526.5 m). The emissions at 437.7 nm and 656.5 nm are combined co-linearly with the emission at 523.6 nm (or 526.5 nm) to produce a single RGB pulsed laser beam.Type: ApplicationFiled: December 23, 2005Publication date: June 15, 2006Inventors: Alexey Rodin, Florian Vergnes, David Brotherton-Ratcliffe
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Publication number: 20060114532Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. In one embodiment the data are generated entirely by a computer as a 3-D (animated) model. In another embodiment the data are generated from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, which avoids the usual vibration problems encountered at high rates of production and the installation in normal working environments, is used to record composite holograms on an holographic emulsion using a special optical design.Type: ApplicationFiled: November 2, 2005Publication date: June 1, 2006Applicant: XYZ Imaging, Inc.Inventors: David Brotherton-Ratcliffe, Florian Robert Vergnes, Alexey Rodin, Mikhail Grichine
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Patent number: 7042605Abstract: The present invention provides a single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods. Alternatively the same invention and apparatus permits the direct writing of hologram without the need to pass through the intermediate stage of the H1 transmission hologram.Type: GrantFiled: February 11, 2005Date of Patent: May 9, 2006Assignee: XYZ Imaging, Inc.Inventors: David Brotherton-Ratcliffe, Florian Michel Robert Vergnes, Alexey Rodin, Mikhail Grichine
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Patent number: 7009742Abstract: The present invention provides a single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation ofrestricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods. Alternatively the same invention and apparatus permits the direct writing of hologram without the need to pass through the intermediate stage of the H1 transmission hologram.Type: GrantFiled: February 11, 2005Date of Patent: March 7, 2006Assignee: XYZ Imaging, Inc.Inventors: David Brotherton-Ratcliffe, Florian Michel Robert Vergnes, Alexey Rodin, Mikhail Grichine
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Patent number: 7003004Abstract: A pulsed multiple color laser system is disclosed having particular application for incorporation into a digital holographic printer for producing RGB color reflection holograms. A Nd:YLF crystal (1) in a laser cavity is excited to produce an emission at (1313) nm which is frequency converted by doubling to 656.3 nm and by tripling to 437.7 nm. In a separate cavity a similar Nd:YLF crystal (1a) is synchronously or asynchronously excited to produce an emission at 1047.1 nm (or at the related line of 1053 nm) which is frequency converted by doubling to 523.6 nm (or 526.5 m). The emissions at 437.7 nm and 656.5 nm are combined co-linearly with the emission at 523.6 nm (or 526.5 nm) to produce a single RGB pulsed laser beam.Type: GrantFiled: October 8, 2001Date of Patent: February 21, 2006Assignee: Geola Technologies Ltd.Inventors: Alexey Rodin, Florian Vergnes, David Brotherton-Ratcliffe
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Publication number: 20050200925Abstract: The present invention provides a single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods. Alternatively the same invention and apparatus permits the direct writing of hologram without the need to pass through the intermediate stage of the H1 transmission hologram.Type: ApplicationFiled: February 11, 2005Publication date: September 15, 2005Applicant: XYZ Imaging, Inc.Inventors: David Brotherton-Ratcliffe, Florian Vergnes, Alexey Rodin, Mikhail Grichine
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Publication number: 20050200924Abstract: The present invention provides a single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods. Alternatively the same invention and apparatus permits the direct writing of hologram without the need to pass through the intermediate stage of the H1 transmission hologram.Type: ApplicationFiled: February 11, 2005Publication date: September 15, 2005Applicant: XYZ Imaging, Inc.Inventors: David Brotherton-Ratcliffe, Florian Vergnes, Alexey Rodin, Mikhail Grichine
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Publication number: 20050200927Abstract: A method of writing a single or double parallax composite 1-step hologram is disclosed. Digital data is acquired from a real or virtual object and is described by a luminous intensity tensor. A single mathematical transformation is performed to convert the luminous intensity tensor into a mask tensor. The single mathematical transformation transforms the digital data whilst integrally correcting the digital data for the finite distortion of an optical objective. Corrected data, described by the mask tensor, is written on to a spatial light modulator. A laser beam is directed on to the spatial light modulator so that at least a portion of the laser beam is spatially modulated to form a spatially modulated laser beam. The spatially modulated laser beam is then passed through an optical objective having a finite distortion and in combination with a reference recording beam forms a composite hologram.Type: ApplicationFiled: January 27, 2003Publication date: September 15, 2005Inventors: David Brotherton-Ratcliffe, Alexey Rodin, Lynne Hrynkiw
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Patent number: 6930811Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods. Alternatively the same invention and apparatus permits the direct writing of hologram without the need to pass through the intermediate stage of the H1 transmission hologram.Type: GrantFiled: December 8, 2000Date of Patent: August 16, 2005Assignee: XYZ Imaging Inc.Inventors: David Brotherton-Ratcliffe, Florian Michael Robert Vergnes, Alexey Rodin, Mikhail Grichine
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Publication number: 20050052717Abstract: A holographic printer is disclosed which produces an intermediate hologram H3 and uses the intermediate hologram H3 to produce a white light viewable hologram H2.Type: ApplicationFiled: October 16, 2002Publication date: March 10, 2005Inventors: David Brotherton-Ratcliffe, Alexey Rodin
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Publication number: 20040050280Abstract: A direct write holographic printer for producing RGB colour reflection holograms is disclosed. A Nd:YLF crystal (1) in a laser cavity is excited to produce an emission at 1313 nm which is frequency converted by doubling to 656.5 nm and by tripling to 437.7 nm. In a separate cavity a similar Nd:YLF crystal (1a) is synchronously or asynchronously excited to produce an emission at 1047.1 nm (or at the related line of 1053 nm) which is frequency converted by doubling to 523.6 nm (or 526.5 nm). The emissions at 437.7 nm and 656.5 nm are combined co-linearly with the emission at 523.6 nm (or 526.5 nm) to produce a single RGB pulsed laser beam.Type: ApplicationFiled: October 24, 2003Publication date: March 18, 2004Inventors: Alexey Rodin, Florian Michel Robert Vergnes, David Brotherton-Ratcliffe
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Publication number: 20040047375Abstract: A pulsed multiple color laser system is disclosed having particular application for incorporation into a digital holographic printer for producing RGB color reflection holograms. A Nd:YLF crystal (1) in a laser cavity is excited to produce an emission at (1313) nm which is frequency converted by doubling to 656.3 nm and by tripling to 437.7 nm. In a separate cavity a similar Nd:YLF crystal (1a) is synchronously or asynchronously excited to produce an emission at 1047.1 nm (or at the related line of 1053 nm) which is frequency converted by doubling to 523.6 nm (or 526.5 m). The emissions at 437.7 nm and 656.5 nm are combined co-linearly with the emission at 523.6 nm (or 526.5 nm) to produce a single RGB pulsed laser beam.Type: ApplicationFiled: September 19, 2003Publication date: March 11, 2004Inventors: Alexey Rodin, Florian Vergnes, David Brotherton Ratcliffe
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Publication number: 20030156308Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. In one embodiment the data are generated entirely by a computer as a 3-D (animated) model. In another embodiment the data are generated from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, which avoids the usual vibration problems encountered at high rates of production and the installation in normal working environments, is used to record composite holograms on an holographic emulsion using a special optical design.Type: ApplicationFiled: October 15, 2002Publication date: August 21, 2003Inventors: David Brotherton-Ratcliffe, Florian Michel Robert Vergnes, Alexey Rodin, Mikhail Grichine
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Publication number: 20030058490Abstract: A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods. Alternatively the same invention and apparatus permits the direct writing of hologram without the need to pass through the intermediate stage of the H1 transmission hologram.Type: ApplicationFiled: September 30, 2002Publication date: March 27, 2003Inventors: David Brotherton-Ratcliffe, Florian Michel Robert Vergnes, Alexey Rodin, Mikhail Grichine