Patents by Inventor Yuval Kapellner
Yuval Kapellner 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: 8009358Abstract: An optical system and method are presented to produce a desired illuminating light pattern. The system comprises a light source system configured and operable to produce structured light in the form of a plurality of spatially separated light beams; and a beam shaping arrangement. The beam shaping arrangement is configured as a diffractive optical unit configured and operable to carry out at least one of the following: (i) combining an array of the spatially separated light beams into a single light beam thereby significantly increasing intensity of the illuminating light; (ii) affecting intensity profile of the light beam to provide the illuminating light of a substantially rectangular uniform intensity profile.Type: GrantFiled: October 17, 2004Date of Patent: August 30, 2011Assignee: Explay Ltd.Inventors: Zeev Zalevsky, Yuval Kapellner, Izhar Eyal, Golan Manor
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Patent number: 7746559Abstract: An image projecting device and method are presented. The device comprises a light source system, a spatial light modulator (SLM) unit, and an image projection optics accommodated at the output side of the SLM unit. The SLM unit may be reflective or transmissive. The SLM unit comprises an SLM pixel arrangement enclosed between two glass substrates. The pixel array arrangement is formed by a pixel array assembly and at least one microlens assembly. The microlens assembly includes at least one microlens array accommodated proximate of the pixel array assembly. The light source system may comprise n light sources and a light converting means in optical path of light generated by the n light sources, to thereby produce m light beams of different wavelength ranges, wherein m>n. The light source system may comprise a multi-mode laser, thereby reducing a speckle effect in an integrated speckle pattern produced by the multiple modes, as compared to that of a single mode.Type: GrantFiled: July 8, 2005Date of Patent: June 29, 2010Assignee: Explay Ltd.Inventors: Ilan Sharon, Zeev Zalevsky, Golan Manor, Yuval Kapellner
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Publication number: 20070273957Abstract: An optical system and method are presented to produce a desired illuminating light pattern. The system comprises a light source system configured and operable to produce structured light in the form of a plurality of spatially separated light beams; and a beam shaping arrangement. The beam shaping arrangement is configured as a diffractive optical unit configured and operable to carry out at least one of the following: (i) combining an array of the spatially separated light beams into a single light beam thereby significantly increasing intensity of the illuminating light; (ii) affecting intensity profile of the light beam to provide the illuminating light of a substantially rectangular uniform intensity profile.Type: ApplicationFiled: October 17, 2004Publication date: November 29, 2007Inventors: Zeev Zalevsky, Yuval Kapellner, Izhar Eyal, Golan Manor
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Publication number: 20070047043Abstract: An image projecting device and method are presented. The device comprises a light source system operable to produce a light beam to impinge onto an active surface of a spatial light modulator (SLM) unit formed by an SLM pixel arrangement; and a magnification optics accommodated at the output side of the SLM unit. The light beam impinging onto the SLM pixel arrangement has a predetermined cross section corresponding to the size of said active surface.Type: ApplicationFiled: October 27, 2006Publication date: March 1, 2007Applicant: EXPLAY LTD.Inventors: Yuval Kapellner, Sharon Kapellner, Itzhak Pomerantz, Zeev Zalevsky, Eran Sabo
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Publication number: 20060279662Abstract: An image projection system and method are presented to project an image on at least one of first and second projection planes. The system comprises a light source system including one or more light source assemblies operable to generate light of one or more predetermined wavelength range; a spatial light modulator (SLM) system including one or more SLM units operable to spatially modulate input light in accordance with an image to be directly projected or viewed; and two optical assemblies associated with two spatially separated light propagation channels, respectively, to direct light to, respectively, the first and second projection planes with desired image magnification. The system is configured to selectively direct the input light propagating towards the SLM system or light modulated by the SLM system to propagate along at least one of the two channels associated with the first and second projection planes, respectively.Type: ApplicationFiled: March 16, 2004Publication date: December 14, 2006Applicant: Explay Ltd.Inventors: Yuval Kapellner, Golan Manor, Zeev Zalevsky, Izhar Eyal, Nadav Cohen, Daniel Oleiski
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Patent number: 7128420Abstract: An image projecting device is presented. The device comprises an SLM pixel arrangement; and two lens arrays. The lens arrays are respectively located at opposite surfaces of the SLM pixel arrangement and are integral with the SLM pixel arrangement, forming together with the SLM pixel arrangement a common SLM unit. Each lens in one array and a respective opposite lens in the other array are associated with a corresponding one of the pixels. Each of the lens arrays is implemented in a polymer spacer and is either spaced from the corresponding surface of the opposite surfaces of the pixel arrangement a distance substantially not exceeding 50 ?m or is in physical contact with the respective surface. The device also comprises a light source system operable to produce an incident light beam of a predetermined cross section corresponding to the size of an active surface of the SLM pixel arrangement; and a magnification optics.Type: GrantFiled: July 8, 2002Date of Patent: October 31, 2006Assignee: Explay Ltd.Inventors: Yuval Kapellner, Sharon Kapellner, Itzhak Pomerantz, Zeev Zalevsky, Eran Sabo
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Publication number: 20060018025Abstract: An image projecting device and method are presented. The device comprises a light source system, a spatial light modulator (SLM) unit, and an image projection optics accommodated at the output side of the SLM unit. The SLM unit may be reflective or transmissive. The SLM unit comprises an SLM pixel arrangement enclosed between two glass substrates. The pixel array arrangement is formed by a pixel array assembly and at least one microlens assembly. The microlens assembly includes at least one microlens array accommodated proximate of the pixel array assembly. The light source system may comprise n light sources and a light converting means in optical path of light generated by the n light sources, to thereby produce m light beams of different wavelength ranges, wherein m>n. The light source system may comprise a multi-mode laser, thereby reducing a speckle effect in an integrated speckle pattern produced by the multiple modes, as compared to that of a single mode.Type: ApplicationFiled: July 8, 2005Publication date: January 26, 2006Applicant: ExPlay LTD.Inventors: IIan Sharon, Zeev Zalevsky, Golan Manor, Yuval Kapellner
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Publication number: 20040239880Abstract: An image projecting device and method are presented. The device comprises a light source system operable to produce a light beam to impinge onto an active surface of a spatial light modulator (SLM) unit formed by an SLM pixel arrangement; and a magnification optics accommodated at the output side of the SLM unit. The light beam impinging onto the SLM pixel arrangement has a predetermined cross section corresponding to the size of said active surface.Type: ApplicationFiled: July 19, 2004Publication date: December 2, 2004Inventors: Yuval Kapellner, Sharon Kapellner, Itzhak Pomerantz, Zeev Zalevsky, Eran Sabo