Patents by Inventor German B. DUBININ
German B. DUBININ 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: 11886022Abstract: There is provided a beam expander including a first optical element, a second optical element, a composite waveguide including a plurality of waveguide elements, and a dichroic coating provided between the plurality of waveguide elements. The first optical element inputs a collimated incident beam from the outside into the composite waveguide, and the second optical element outputs, from the composite waveguide, collimated incident beam, input to the composite waveguide, wherein the collimated incident beam input into the composite waveguide is divided into multiple wavefronts by the dichroic coating, and the multiple wavefronts are mixed by total internal reflection in the composite waveguide. When the beam expander is used, coherency and collimation of an output beam may be maintained and speckles may be reduced or eliminated while improving the efficiency of an optical system.Type: GrantFiled: November 5, 2021Date of Patent: January 30, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Aleksander V. Morozov, Sergey E. Dubynin, German B. Dubinin, Chilsung Choi, Hongseok Lee, Hoon Song
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Publication number: 20230251410Abstract: A beam expander includes first and second optical elements spaced apart from each other, and a light diffuser having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element in-couples the diffused light such that light exiting the first optical element has a first cross-sectional shape and light having a second cross-sectional shape different from the first cross-sectional shape is incident on the second optical element, and the second optical element out-couples light incident from the first optical element.Type: ApplicationFiled: April 19, 2023Publication date: August 10, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Aleksander V. MOROZOV, Andrey N. PUTILIN, Sergey E. DUBYNIN, Chilsung CHOI, German B. DUBININ, Hongseok LEE, Hoon SONG
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Patent number: 11662511Abstract: A beam expander includes first and second optical elements spaced apart from each other, and a light diffuser having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element in-couples the diffused light such that light exiting the first optical element has a first cross-sectional shape and light having a second cross-sectional shape different from the first cross-sectional shape is incident on the second optical element, and the second optical element out-couples light incident from the first optical element.Type: GrantFiled: July 7, 2021Date of Patent: May 30, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Aleksander V. Morozov, Andrey N. Putilin, Sergey E. Dubynin, Chilsung Choi, German B. Dubinin, Hongseok Lee, Hoon Song
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Publication number: 20220146764Abstract: There is provided a beam expander including a first optical element, a second optical element, a composite waveguide including a plurality of waveguide elements, and a dichroic coating provided between the plurality of waveguide elements. The first optical element inputs a collimated incident beam from the outside into the composite waveguide, and the second optical element outputs , from the composite waveguide, collimated incident beam, input to the composite waveguide, wherein the collimated incident beam input into the composite waveguide is divided into multiple wavefronts by the dichroic coating, and the multiple wavefronts are mixed by total internal reflection in the composite waveguide. When the beam expander is used, coherency and collimation of an output beam may be maintained and speckles may be reduced or eliminated while improving the efficiency of an optical system.Type: ApplicationFiled: November 5, 2021Publication date: May 12, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Aleksander V. MOROZOV, Sergey E. Dubynin, German B. Dubinin, Chilsung Choi, Hongseok Lee, Hoon Song
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Slim backlight unit for holographic display device and holographic display device including the same
Patent number: 11262700Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.Type: GrantFiled: October 23, 2019Date of Patent: March 1, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yunhee Kim, German B. Dubinin, Alexander V. Morozov, Sunil Kim, Hoon Song, Jungkwuen An, Young Kim, Hongseok Lee, Chilsung Choi -
Publication number: 20220026621Abstract: A beam expander includes first and second optical elements spaced apart from each other, and a light diffuser having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element in-couples the diffused light such that light exiting the first optical element has a first cross-sectional shape and light having a second cross-sectional shape different from the first cross-sectional shape is incident on the second optical element, and the second optical element out-couples light incident from the first optical element.Type: ApplicationFiled: July 7, 2021Publication date: January 27, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Aleksander V. MOROZOV, Andrey N. PUTILIN, Sergey E. DUBYNIN, Chilsung CHOI, German B. DUBININ, Hongseok LEE, Hoon SONG
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Slim backlight unit for holographic display device and holographic display device including the same
Patent number: 11119444Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.Type: GrantFiled: July 17, 2019Date of Patent: September 14, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yunhee Kim, German B. Dubinin, Alexander V. Morozov, Sunil Kim, Hoon Song, Jungkwuen An, Young Kim, Hongseok Lee, Chilsung Choi -
Patent number: 10761256Abstract: Provided is a backlight unit including a light source emitting coherent light, a light guide plate propagating the light emitted by the light source, an input grating inputting the light from the light source into the light guide plate, an output grating provided on one surface of the light guide plate and diffracting light incident from inside the light guide plate and outputting the light, in a direction toward the outside of the light guide plate, a first recuperation element provided on one surface of the light guide plate and including a first recycle grating, and a second recuperation element provided opposite to the first recuperation element and directing, to the first recuperation element, incident light that is propagating inside the light guide plate.Type: GrantFiled: April 3, 2019Date of Patent: September 1, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: German B. Dubinin, Sergey E. Dubynin, Aleksander V. Morozov, Andrey N. Putilin, Sergey S. Kopenkin, Yuriy P. Borodin, Jungkwuen An, Chilsung Choi, Hongseok Lee, Hoon Song, Sunil Kim
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SLIM BACKLIGHT UNIT FOR HOLOGRAPHIC DISPLAY DEVICE AND HOLOGRAPHIC DISPLAY DEVICE INCLUDING THE SAME
Publication number: 20200050146Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.Type: ApplicationFiled: October 23, 2019Publication date: February 13, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yunhee Kim, German B. Dubinin, Alexander V. Morozov, Sunil Kim, Hoon Song, Jungkwuen An, Young kim, Hongseok Lee, Chilsung Choi -
Patent number: 10523926Abstract: Provided are a backlight unit and a holographic display including the same. The backlight unit may include: a light guide plate; a light source unit configured to adjust a direction of light which is emitted from the light source unit and incident on the light guide plate; and a diffraction device which is disposed on the light guide plate and configured to control a direction of light emitted from the light guide plate.Type: GrantFiled: March 31, 2015Date of Patent: December 31, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sunil Kim, Chilsung Choi, Jungkwuen An, Alexander V. Morozov, Hongseok Lee, Andrey N. Putilin, German B. Dubinin, Sergey E. Dubynin
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Slim backlight unit for holographic display device and holographic display device including the same
Patent number: 10488822Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.Type: GrantFiled: December 27, 2016Date of Patent: November 26, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yunhee Kim, German B. Dubinin, Alexander V. Morozov, Sunil Kim, Hoon Song, Jungkwuen An, Young Kim, Hongseok Lee, Chilsung Choi -
SLIM BACKLIGHT UNIT FOR HOLOGRAPHIC DISPLAY DEVICE AND HOLOGRAPHIC DISPLAY DEVICE INCLUDING THE SAME
Publication number: 20190339647Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.Type: ApplicationFiled: July 17, 2019Publication date: November 7, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yunhee KIM, German B. Dubinin, Alexander V. Morozov, Sunil Kim, Hoon Song, Jungkwuen An, Young Kim, Hongseok Lee, Chilsung Choi -
Publication number: 20190317264Abstract: Provided is a backlight unit including a light source emitting coherent light, a light guide plate propagating the light emitted by the light source, an input grating inputting the light from the light source into the light guide plate, an output grating provided on one surface of the light guide plate and diffracting light incident from inside the light guide plate and outputting the light, in a direction toward the outside of the light guide plate, a first recuperation element provided on one surface of the light guide plate and including a first recycle grating, and a second recuperation element provided opposite to the first recuperation element and directing, to the first recuperation element, incident light that is propagating inside the light guide plate.Type: ApplicationFiled: April 3, 2019Publication date: October 17, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: German B. DUBININ, Sergey E. Dubynin, Aleksander V. Morozov, Andrey N. Putilin, Sergey S. Kopenkin, Yuriy P. Borodin, Jungkwuen An, Chilsung Choi, Hongseok Lee, Hoon Song, Sunil Kim
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Patent number: 10324245Abstract: A backlight unit for a holographic display is provided. The backlight unit includes: at least one light source; at least one input coupler; a light guide panel (LGP) that guides light; a first holographic element on a first surface of the LGP; and a second holographic element on a second surface of the LGP, wherein the at least one input coupler is configured to uniformly transmit rays emitted from the at least one light source toward the first holographic element through the LGP, and the LGP is configured to transmit the rays incident from the at least one input coupler toward the first holographic element, and the first holographic element redirects the rays toward the second holographic element, the redirected rays being substantially parallel to one another, and the second holographic element emits rays incident from the first holographic element toward an outside of the LGP.Type: GrantFiled: July 27, 2015Date of Patent: June 18, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sunil Kim, Alexander V. Morozov, Andrey N. Putilin, Sergey E. Dubynin, German B. Dubinin, Sergey S. Kopenkin, Yuriy P. Borodin, Hongseok Lee, Chilsung Choi
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Patent number: 10191196Abstract: A backlight unit (BLU), for a binocular holographic display apparatus, and the binocular holographic display apparatus including the BLU are provided. The BLU includes: a light source unit that emits coherent illumination light; and a light guide plate that is transparent and includes a light incidence surface onto which the coherent illumination light emitted by the light source unit is incident and a light emission surface through which the illumination light is output. The light source unit includes a beam deflector that adjusts an incidence angle of the illumination light incident onto the light guide plate.Type: GrantFiled: October 29, 2015Date of Patent: January 29, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Alexander V. Morozov, Andrey N. Putilin, Sergey E. Dubynin, German B. Dubinin, Sergey S. Kopenkin, Yuriy P. Borodin, Sunil Kim, Jungkwuen An, Chilsung Choi, Hongseok Lee
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SLIM BACKLIGHT UNIT FOR HOLOGRAPHIC DISPLAY DEVICE AND HOLOGRAPHIC DISPLAY DEVICE INCLUDING THE SAME
Publication number: 20180032030Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.Type: ApplicationFiled: December 27, 2016Publication date: February 1, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yunhee KIM, German B. DUBININ, Alexander V. MOROZOV, Sunil KIM, Hoon SONG, Jungkwuen AN, Young KIM, Hongseok LEE, Chilsung CHOI -
Publication number: 20160147003Abstract: A backlight unit (BLU), for a binocular holographic display apparatus, and the binocular holographic display apparatus including the BLU are provided. The BLU includes: a light source unit that emits coherent illumination light; and a light guide plate that is transparent and includes a light incidence surface onto which the coherent illumination light emitted by the light source unit is incident and a light emission surface through which the illumination light is output. The light source unit includes a beam deflector that adjusts an incidence angle of the illumination light incident onto the light guide plate.Type: ApplicationFiled: October 29, 2015Publication date: May 26, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Alexander V. MOROZOV, Andrey N. PUTILIN, Sergey E. DUBYNIN, German B. DUBININ, Sergey S. KOPENKIN, Yuriy P. BORODIN, Sunil KIM, Jungkwuen AN, Chilsung CHOI, Hongseok LEE
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Publication number: 20160065955Abstract: Provided are a backlight unit and a holographic display including the same. The backlight unit may include: a light guide plate; a light source unit configured to adjust a direction of light which is emitted from the light source unit and incident on the light guide plate; and a diffraction device which is disposed on the light guide plate and configured to control a direction of light emitted from the light guide plate.Type: ApplicationFiled: March 31, 2015Publication date: March 3, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sunil KIM, Chilsung CHOI, Jungkwuen AN, Alexander V. MOROZOV, Hongseok LEE, Andrey N. PUTILIN, German B. DUBININ, Sergey E. DUBYNIN
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Publication number: 20160033710Abstract: A backlight unit for a holographic display is provided. The backlight unit includes: at least one light source; at least one input coupler; a light guide panel (LGP) that guides light; a first holographic element on a first surface of the LGP; and a second holographic element on a second surface of the LGP, wherein the at least one input coupler is configured to uniformly transmit rays emitted from the at least one light source toward the first holographic element through the LGP, and the LGP is configured to transmit the rays incident from the at least one input coupler toward the first holographic element, and the first holographic element redirects the rays toward the second holographic element, the redirected rays being substantially parallel to one another, and the second holographic element emits rays incident from the first holographic element toward an outside of the LGP.Type: ApplicationFiled: July 27, 2015Publication date: February 4, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sunil KIM, Alexander V. MOROZOV, Andrey N. PUTILIN, Sergey E. DUBYNIN, German B. DUBININ, Sergey S. KOPENKIN, Yuriy P. BORODIN, Hongseok LEE, Chilsung CHOI