Patents by Inventor Jeffrey Alan Gohman
Jeffrey Alan Gohman 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: 10955648Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: GrantFiled: December 21, 2018Date of Patent: March 23, 2021Assignee: SEIKO EPSON CORPORATIONInventors: Mark D. Peterson, T Scott Engle, Jeffrey Alan Gohman
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Patent number: 10663702Abstract: A zoom lens system includes: a primary image forming lens group that forms light from an object side into an intermediate image and a relay lens group that forms light from the intermediate image into a final image. The primary image forming lens group includes, in order from the object side, a first fixed lens group G1 with negative refractive power, a stop St, and a second fixed lens group G2 with positive refractive power, and the relay lens group includes, in order from the object side, a third fixed lens group G3 with negative refractive power, a first moving lens group G4 with positive refractive power, and a second moving lens group G5 with positive refractive power.Type: GrantFiled: November 16, 2016Date of Patent: May 26, 2020Assignees: NITTOH INC., THEIA TECHNOLOGIES LLCInventors: Kazuhiro Oe, Jeffrey Alan Gohman
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Patent number: 10422981Abstract: There is provided a lens system includes a first optical system and forms an intermediate image, which has been formed inside the first optical system by light from an input side, into a final image. The first optical system includes a first subsystem, with the first subsystem including a first lens that is disposed at a position closest to the intermediate image on the input side and moves during focusing and a second lens that is disposed at a position closest to the intermediate image on the output side and moves during focusing.Type: GrantFiled: January 30, 2018Date of Patent: September 24, 2019Assignees: NITTOH INC., THEIA TECHNOLOGIES LLCInventors: Kazuhiro Oe, Jeffrey Alan Gohman
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Publication number: 20190113726Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: ApplicationFiled: December 21, 2018Publication date: April 18, 2019Applicant: SEIKO EPSON CORPORATIONInventors: Mark D. PETERSON, T Scott ENGLE, Jeffrey Alan GOHMAN
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Publication number: 20180157011Abstract: There is provided a lens system includes a first optical system and forms an intermediate image, which has been formed inside the first optical system by light from an input side, into a final image. The first optical system includes a first subsystem, with the first subsystem including a first lens that is disposed at a position closest to the intermediate image on the input side and moves during focusing and a second lens that is disposed at a position closest to the intermediate image on the output side and moves during focusing.Type: ApplicationFiled: January 30, 2018Publication date: June 7, 2018Inventors: KAZUHIRO OE, JEFFREY ALAN GOHMAN
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Patent number: 9910251Abstract: There is provided a lens system includes a first optical system and forms an intermediate image, which has been formed inside the first optical system by light from an input side, into a final image. The first optical system includes a first subsystem, with the first subsystem including a first lens that is disposed at a position closest to the intermediate image on the input side and moves during focusing and a second lens that is disposed at a position closest to the intermediate image on the output side and moves during focusing.Type: GrantFiled: March 19, 2014Date of Patent: March 6, 2018Assignees: NITTOH INC., THEIA TECHNOLOGIES LLCInventors: Kazuhiro Oe, Jeffrey Alan Gohman
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Patent number: 9733459Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: GrantFiled: October 28, 2014Date of Patent: August 15, 2017Assignee: SEIKO EPSON CORPORATIONInventors: Mark D. Peterson, T. Scott Engle, Jeffrey Alan Gohman
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Publication number: 20170199361Abstract: A zoom lens system includes: a primary image forming lens group that forms light from an object side into an intermediate image and a relay lens group that forms light from the intermediate image into a final image. The primary image forming lens group includes, in order from the object side, a first fixed lens group G1 with negative refractive power, a stop St, and a second fixed lens group G2 with positive refractive power, and the relay lens group includes, in order from the object side, a third fixed lens group G3 with negative refractive power, a first moving lens group G4 with positive refractive power, and a second moving lens group G5 with positive refractive power.Type: ApplicationFiled: November 16, 2016Publication date: July 13, 2017Inventors: Kazuhiro Oe, Jeffrey Alan Gohman
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Patent number: 9529181Abstract: A zoom lens system includes: a primary image forming lens group that forms light from an object side into an intermediate image and a relay lens group that forms light from the intermediate image into a final image. The primary image forming lens group includes, in order from the object side, a first fixed lens group G1 with negative refractive power, a stop St, and a second fixed lens group G2 with positive refractive power, and the relay lens group includes, in order from the object side, a third fixed lens group G3 with negative refractive power, a first moving lens group G4 with positive refractive power, and a second moving lens group G5 with positive refractive power.Type: GrantFiled: October 10, 2013Date of Patent: December 27, 2016Inventors: Kazuhiro Oe, Jeffrey Alan Gohman
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Publication number: 20160341943Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: ApplicationFiled: August 2, 2016Publication date: November 24, 2016Applicant: SEIKO EPSON CORPORATIONInventors: Mark D. PETERSON, T. Scott ENGLE, Jeffrey Alan GOHMAN
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Publication number: 20160342075Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: ApplicationFiled: August 2, 2016Publication date: November 24, 2016Applicant: SEIKO EPSON CORPORATIONInventors: Mark D. PETERSON, T Scott ENGLE, Jeffrey Alan GOHMAN
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Patent number: 9429826Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: GrantFiled: November 16, 2015Date of Patent: August 30, 2016Assignee: SEIKO EPSON CORPORATIONInventors: Mark D. Peterson, T. Scott Engle, Jeffrey Alan Gohman
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Publication number: 20160070158Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: ApplicationFiled: November 16, 2015Publication date: March 10, 2016Inventors: Mark D. PETERSON, T. Scott ENGLE, Jeffrey Alan GOHMAN
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Patent number: 9217912Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: GrantFiled: December 15, 2006Date of Patent: December 22, 2015Assignee: SEIKO EPSON CORPORATIONInventors: Mark D. Peterson, T. Scott Engle, Jeffrey Alan Gohman
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Publication number: 20150268453Abstract: There is provided a lens system includes a first optical system and forms an intermediate image, which has been formed inside the first optical system by light from an input side, into a final image. The first optical system includes a first subsystem, with the first subsystem including a first lens that is disposed at a position closest to the intermediate image on the input side and moves during focusing and a second lens that is disposed at a position closest to the intermediate image on the output side and moves during focusing.Type: ApplicationFiled: March 19, 2014Publication date: September 24, 2015Inventors: KAZUHIRO OE, JEFFREY ALAN GOHMAN
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Publication number: 20150103403Abstract: A zoom lens system includes: a primary image forming lens group that forms light from an object side into an intermediate image and a relay lens group that forms light from the intermediate image into a final image. The primary image forming lens group includes, in order from the object side, a first fixed lens group G1 with negative refractive power, a stop St, and a second fixed lens group G2 with positive refractive power, and the relay lens group includes, in order from the object side, a third fixed lens group G3 with negative refractive power, a first moving lens group G4 with positive refractive power, and a second moving lens group G5 with positive refractive power.Type: ApplicationFiled: October 10, 2013Publication date: April 16, 2015Inventors: Kazuhiro Oe, Jeffrey Alan Gohman
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Publication number: 20150042965Abstract: A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image in a first stage and decrease distortion of the image in a second stage. The screen may be configured to receive the image from the wide angle lens system on a first side and reflect the image back to a viewer on the first side. In another embodiment, a screen is provided for a front projection system, the screen may be configured to receive light from a steep angle and may include any number of surface topographies configured to reflect light back to the viewer along a desired viewing plane.Type: ApplicationFiled: October 28, 2014Publication date: February 12, 2015Applicant: SEIKO EPSON CORPORATIONInventors: Mark D. PETERSON, T. Scott ENGLE, Jeffrey Alan GOHMAN
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Patent number: 8081377Abstract: The wide angle lens system described herein allows projection devices (e.g., rear projection display devices) to be more compact than would otherwise be possible. The lens system includes a wide angle lens stage and a relay lens stage. When operating as a projection device, the relay lens stage projects a distorted intermediate image to the wide angle lens stage, which projects the image for display. The distortion cause by the relay lens stage compensates (i.e., is approximately equal and opposite) for the distortion caused by the wide angle stage. The distortion can be the image shape and/or the focal plane. When operating as a taking device, the wide angle stage provides a distorted image to the relay lens stage, which compensates for the distortion and provide a less distorted, or even non-distorted image, for capture.Type: GrantFiled: June 8, 2009Date of Patent: December 20, 2011Assignee: InFocus CorporationInventor: Jeffrey Alan Gohman
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Patent number: 7777949Abstract: A rear projection display device is provided. In an embodiment, the display device includes a laminate screen including a microstructure lamina having a non-planar input surface, a substantially planar output surface and a first index of refraction. The laminate screen further may include a diffusion screen lamina having a substantially planar input surface, an output surface and a second index of refraction. The diffusion screen lamina may be in optical communication with the microstructure lamina. Moreover, the planar output surface of the microstructure lamina and the planar input surface of the diffusion screen lamina may be in facing relationship.Type: GrantFiled: August 7, 2006Date of Patent: August 17, 2010Assignee: Seiko Epson CorporationInventors: Mark David Peterson, Jeffrey Alan Gohman
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Publication number: 20090244701Abstract: The wide angle lens system described herein allows projection devices (e.g., rear projection display devices) to be more compact than would otherwise be possible. The lens system includes a wide angle lens stage and a relay lens stage. When operating as a projection device, the relay lens stage projects a distorted intermediate image to the wide angle lens stage, which projects the image for display. The distortion cause by the relay lens stage compensates (i.e., is approximately equal and opposite) for the distortion caused by the wide angle stage. The distortion can be the image shape and/or the focal plane. When operating as a taking device, the wide angle stage provides a distorted image to the relay lens stage, which compensates for the distortion and provide a less distorted, or even non-distorted image, for capture.Type: ApplicationFiled: June 8, 2009Publication date: October 1, 2009Applicant: INFOCUS CORPORATIONInventor: Jeffrey Alan Gohman