Patents by Inventor John Arntsen
John Arntsen 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: 10338402Abstract: An apparatus and method that improves the stability of despeckling using stimulated Raman scattering in an optical fiber. Optical modes in the fiber are scrambled by physical movement of the optical fiber, focusing assembly, or laser beam. The improvement in stability may include a reduction in flicker or reduction in long-term drift.Type: GrantFiled: March 16, 2018Date of Patent: July 2, 2019Assignee: PROJECTION VENTURES, INC.Inventors: Barret Lippey, Ian Lee, John Arntsen, Rick Posch
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Publication number: 20180203250Abstract: An apparatus and method that improves the stability of despeckling using stimulated Raman scattering in an optical fiber. Optical modes in the fiber are scrambled by physical movement of the optical fiber, focusing assembly, or laser beam. The improvement in stability may include a reduction in flicker or reduction in long-term drift.Type: ApplicationFiled: March 16, 2018Publication date: July 19, 2018Inventors: Barret Lippey, Ian Lee, John Arntsen, Rick Posch
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Patent number: 9939653Abstract: An apparatus and method that improves the stability of despeckling using stimulated Raman scattering in an optical fiber. Optical modes in the fiber are scrambled by physical movement of the optical fiber, focusing assembly, or laser beam. The improvement in stability may include a reduction in flicker or reduction in long-term drift.Type: GrantFiled: February 28, 2014Date of Patent: April 10, 2018Assignee: Projection Ventures Inc.Inventors: Barret Lippey, Ian Lee, John Arntsen, Rick Posch
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Patent number: 9715123Abstract: An apparatus and method for despeckling that includes a pulsed green laser, a green laser diode assembly, and stimulated Raman scattering light formed in an optical fiber. The stimulated Raman scattering light is divided into green light and red light. The green light from the stimulated Raman scattering is combined with the green laser diode assembly to form a green primary light. The red light from the stimulated Raman scattering light forms a red primary light. The green primary light and the red primary light are used to project a digital image.Type: GrantFiled: August 12, 2013Date of Patent: July 25, 2017Assignee: Laser Light Engines, Inc.Inventors: John Arntsen, Barret Lippey
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Patent number: 9599835Abstract: An apparatus and method for the projection of stereoscopic images that includes a pulsed laser that generates green light and an optical fiber that generates stimulated Raman scattered light. The stimulated Raman scattering light is divided into green light and red light and the colors are used to form stereoscopic images. Additional lasers may be added to meet specific primary color targets and to balance the brightness of the images for each eye.Type: GrantFiled: January 17, 2014Date of Patent: March 21, 2017Assignee: Laser Light Engines, Inc.Inventors: Barret Lippey, John Arntsen, Len Hayes
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Patent number: 9529202Abstract: An apparatus and method for controlling the spectrum of stimulated Raman scattering that is used for despeckling of digitally projected images. The stimulated Raman scattering is utilized to add wavelength diversity for reduced speckle and to change the color of the light to a more desirable combination of wavelengths. Digital projection with color-sequential projectors may be enabled by alternately switching the Raman spectrum between green and red. Improved projector transmission may be achieved by minimizing the amount of yellow light generated in the Raman spectrum.Type: GrantFiled: April 23, 2014Date of Patent: December 27, 2016Assignee: Laser Light Engines, Inc.Inventors: Ian Lee, Barret Lippey, John Arntsen
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Patent number: 9261650Abstract: An apparatus and method for flexible configuring of optical fibers to illuminate digital projectors. The optical fibers are attached to various positions of a configurable back plane assembly and a condensing assembly condenses the light beams prior to launch into the projector. Horizontal and vertical launch symmetries are maintained for any number of optical fibers between 1 and 9.Type: GrantFiled: January 30, 2014Date of Patent: February 16, 2016Assignee: Laser Light Engines, Inc.Inventors: John Arntsen, Barret Lippey
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Publication number: 20150309325Abstract: An apparatus and method for controlling the spectrum of stimulated Raman scattering that is used for despeckling of digitally projected images. The stimulated Raman scattering is utilized to add wavelength diversity for reduced speckle and to change the color of the light to a more desirable combination of wavelengths. Digital projection with color-sequential projectors may be enabled by alternately switching the Raman spectrum between green and red. Improved projector transmission may be achieved by minimizing the amount of yellow light generated in the Raman spectrum.Type: ApplicationFiled: April 23, 2014Publication date: October 29, 2015Applicant: Laser Light Engines, Inc.Inventors: Ian Lee, Barret Lippey, John Arntsen
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Publication number: 20150212272Abstract: An apparatus and method for flexible configuring of optical fibers to illuminate digital projectors. The optical fibers are attached to various positions of a configurable back plane assembly and a condensing assembly condenses the light beams prior to launch into the projector. Horizontal and vertical launch symmetries are maintained for any number of optical fibers between 1 and 9.Type: ApplicationFiled: January 30, 2014Publication date: July 30, 2015Inventors: John Arntsen, Barret Lippey
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Patent number: 8988765Abstract: An apparatus and method for despeckling that includes a green laser diode assembly, a pulsed laser with a repetition rate of less than 100 kHz, and stimulated Raman scattering light formed in an optical fiber. The laser diode light and stimulated Raman scattering light are combined to form a projected digital image. The green laser diode assembly or the pulsed laser is switched to improve the bit depth of the projected digital image.Type: GrantFiled: May 13, 2013Date of Patent: March 24, 2015Inventors: John O'Hara, John Arntsen, Barret Lippey
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Patent number: 8928970Abstract: A method of stereoscopic image formation that includes some or all of the following steps: generating a laser beam, switching the laser beam alternately between a path that includes a stimulated-Raman-scattering optical fiber and a path that does not include a stimulated-Raman-scattering optical fiber, and filtering the output of the stimulated-Raman-scattering optical fiber to reduce the residual non-stimulated-Raman-scattering light.Type: GrantFiled: February 14, 2012Date of Patent: January 6, 2015Assignee: Laser Light EnginesInventors: John Arntsen, Barret Lippey
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Publication number: 20140185130Abstract: A method of despeckling light that includes mixing high-speckle far-red laser light with low-speckle green laser light in amounts selected to achieve a desired color point in a digital image. The far-red laser light may be red laser diodes with wavelengths in the range of 640 to 680 nm. The green laser light may include stimulated-Raman-scattering light from an optical fiber. The desired color point may be DCI red or Rec. 709 red.Type: ApplicationFiled: December 12, 2013Publication date: July 3, 2014Applicant: Laser Light Engines, Inc.Inventors: John Arntsen, Barret Lippey
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Publication number: 20140177034Abstract: An apparatus and method that improves the stability of despeckling using stimulated Raman scattering in an optical fiber. Optical modes in the fiber are scrambled by physical movement of the optical fiber, focusing assembly, or laser beam. The improvement in stability may include a reduction in flicker or reduction in long-term drift.Type: ApplicationFiled: February 28, 2014Publication date: June 26, 2014Inventors: Barret Lippey, Ian Lee, John Arntsen, Rick Posch
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Publication number: 20140133024Abstract: An apparatus and method for the projection of stereoscopic images that includes a pulsed laser that generates green light and an optical fiber that generates stimulated Raman scattered light. The stimulated Raman scattering light is divided into green light and red light and the colors are used to form stereoscopic images. Additional lasers may be added to meet specific primary color targets and to balance the brightness of the images for each eye.Type: ApplicationFiled: January 17, 2014Publication date: May 15, 2014Inventors: Barret Lippey, John Arntsen, Len Hayes
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Publication number: 20130329755Abstract: An apparatus and method for despeckling that includes a pulsed green laser, a green laser diode assembly, and stimulated Raman scattering light formed in an optical fiber. The stimulated Raman scattering light is divided into green light and red light. The green light from the stimulated Raman scattering is combined with the green laser diode assembly to form a green primary light. The red light from the stimulated Raman scattering light forms a red primary light. The green primary light and the red primary light are used to project a digital image.Type: ApplicationFiled: August 12, 2013Publication date: December 12, 2013Applicant: Laser Light Engines, Inc.Inventors: John Arntsen, Barret Lippey
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Publication number: 20130278903Abstract: An apparatus and method for despeckling that includes a pulsed laser with a pulse width between 1 ps and 10 ns and stimulated Raman scattering light formed in an optical fiber. The stimulated Raman scattering light may be used to form a projected digital image. A second pulsed laser with a wavelength at least 2 nm different may be included and stimulated Raman scattering light formed in a second optical fiber may be combined with the stimulated Raman scattering light formed in the first optical fiber.Type: ApplicationFiled: June 19, 2013Publication date: October 24, 2013Inventors: Barret Lippey, John Arntsen, William Brady Beck
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Publication number: 20130250401Abstract: An apparatus and method for despeckling that includes a green laser diode assembly, a pulsed laser with a repetition rate of less than 100 kHz, and stimulated Raman scattering light formed in an optical fiber. The laser diode light and stimulated Raman scattering light are combined to form a projected digital image. The green laser diode assembly or the pulsed laser is switched to improve the bit depth of the projected digital image.Type: ApplicationFiled: May 13, 2013Publication date: September 26, 2013Applicant: Laser Light Engines, Inc.Inventors: John O'Hara, John Arntsen, Barret Lippey
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Publication number: 20120307349Abstract: A method and apparatus for despeckling light that includes combining a first starting wavelength, stimulated Raman scattering light from the first starting wavelength, a second starting wavelength, and stimulated Raman scattering light from the second starting wavelength. The method and apparatus may include a first laser with a first infrared wavelength of 1047 nm and a second laser with a second infrared wavelength of 1053 nm.Type: ApplicationFiled: August 20, 2012Publication date: December 6, 2012Applicant: LASER LIGHT ENGINESInventors: John Arntsen, Ian Lee
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Publication number: 20120140320Abstract: A method of stereoscopic image formation that includes some or all of the following steps: generating a laser beam, switching the laser beam alternately between a path that includes a stimulated-Raman-scattering optical fiber and a path that does not include a stimulated-Raman-scattering optical fiber, and filtering the output of the stimulated-Raman-scattering optical fiber to reduce the residual non-stimulated-Raman-scattering light.Type: ApplicationFiled: February 14, 2012Publication date: June 7, 2012Applicant: LASER LIGHT ENGINESInventors: John Arntsen, Barret Lippey