The Experts below are selected from a list of 228 Experts worldwide ranked by ideXlab platform
Duncan T. Moore - One of the best experts on this subject based on the ideXlab platform.
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All-Plastic High-Performance Eyepiece Design Utilizing a Spherical Gradient-Index Lens
International Optical Design Conference 2014, 2014Co-Authors: Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, Duncan T. MooreAbstract:An all-plastic high-performance Eyepiece design utilizing a polymer spherical gradient-index optical element is presented. The use of a gradient-index lens in the Eyepiece offers better off-axis and chromatic aberration correction, as well as overall performance improvement compared to a similar Eyepiece with all homogeneous lenses.
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Design, fabrication, and metrology of polymer gradient-index lenses for high-performance Eyepieces
Current Developments in Lens Design and Optical Engineering XIV, 2013Co-Authors: James A. Corsetti, Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, Peter Mccarthy, Duncan T. MooreAbstract:High-performance Eyepiece designs have been carried out using both spherical and radial gradient-index (GRIN) elements. Eyepiece designs of both geometries are shown to offer superior imaging performance with fewer elements when compared to purely homogeneous systems. These GRIN lenses are formed from monomer diffusion between polymethyl methacrylate (PMMA) and polystyrene (PSTY) during the polymerization process, resulting in a copolymer of the two homogeneous materials. A process for fabricating spherical GRIN elements is discussed where copolymer axial GRIN blanks are thermally compressed using spherical surface molds. This process curves the nominally-straight isoindicial surfaces of the axial GRIN rod to be consistent with the shape found during optimization of the design. Once compressed, the spherical blanks are diamond-turned for final surface figure and finish. Measurement of the GRIN profile is carried out using the Schmidt immersion technique in a Mach-Zehnder interferometer. Tolerances specific to GRIN elements are identified and determined to be readily achievable using the aforementioned manufacturing process.
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Eyepiece designs with radial and spherical polymer gradient-index optical elements
Optical Engineering, 2013Co-Authors: Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, James A. Corsetti, Peter Mccarthy, Duncan T. MooreAbstract:Radial and spherical polymer gradient-index (GRIN) Eyepiece designs are presented. The chromatic behavior of GRIN profiles is constrained to real material properties of a polymethyl methacrylate polystyrene copolymer gradient-index system. Single-element, two-element, and multielement Eyepiece design configurations each demonstrate significant spot diameter and modulation transfer function performance improvements with the use of a GRIN element. A high-performance spherical GRIN Eyepiece design, with 48-deg full field-of-view and 3% distortion, is compared to a similar homogeneous glass solution.
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Design and fabrication of a polymer gradient-index optical element for a high-performance Eyepiece
Optical Engineering, 2013Co-Authors: Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, James A. Corsetti, Peter Mccarthy, Duncan T. MooreAbstract:A 40-deg full field-of-view high-performance Eyepiece design utilizing a polymer spherical gradient-index (GRIN) optical element is presented. In the design process, the GRIN lens material is constrained to current manufacturing capabilities. Several spherical GRIN lens blanks are fabricated from a thermoformable axial GRIN polymethyl methacrylate polystyrene copolymer material. One is diamond turned into a lens for the Eyepiece, and the additional blanks are used to characterize the fabrication process. The spherical GRIN profile is evaluated in the original design, and a tolerance analysis is provided.
Hiroyuki Osone - One of the best experts on this subject based on the ideXlab platform.
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Air Mounted Eyepiece: Design Methods for Aerial Optical Functions of Near-Eye and See-Through Display using Transmissive Mirror Device.
arXiv: Human-Computer Interaction, 2017Co-Authors: Yoichi Ochiai, Kazuki Otao, Hiroyuki OsoneAbstract:We propose a novel method to implement an optical see-through head mounted display which renders real aerial images with a wide viewing angle, called an Air Mounted Eyepiece (AME). To achieve the AMD design, we employ an off-the-shelf head mounted display and Transmissive Mirror Device (TMD) which is usually used in aerial real imaging systems. In the proposed method, we replicate the function of the head mounted display (HMD) itself, which is used in the air by using the TMD and presenting a real image of Eyepiece in front of the eye. Moreover, it can realize a wide viewing angle 3D display by placing a virtual lens in front of the eye without wearing an HMD. In addition to enhancing the experience of mixed reality and augmented reality, our proposed method can be used as a 3D imaging method for use in other applications such as in automobiles and desktop work. We aim to contribute to the field of human-computer interaction and the research on Eyepiece interfaces by discussing the advantages and the limitations of this near-eye optical system.
Anthony J. Visconti - One of the best experts on this subject based on the ideXlab platform.
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All-Plastic High-Performance Eyepiece Design Utilizing a Spherical Gradient-Index Lens
International Optical Design Conference 2014, 2014Co-Authors: Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, Duncan T. MooreAbstract:An all-plastic high-performance Eyepiece design utilizing a polymer spherical gradient-index optical element is presented. The use of a gradient-index lens in the Eyepiece offers better off-axis and chromatic aberration correction, as well as overall performance improvement compared to a similar Eyepiece with all homogeneous lenses.
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Design, fabrication, and metrology of polymer gradient-index lenses for high-performance Eyepieces
Current Developments in Lens Design and Optical Engineering XIV, 2013Co-Authors: James A. Corsetti, Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, Peter Mccarthy, Duncan T. MooreAbstract:High-performance Eyepiece designs have been carried out using both spherical and radial gradient-index (GRIN) elements. Eyepiece designs of both geometries are shown to offer superior imaging performance with fewer elements when compared to purely homogeneous systems. These GRIN lenses are formed from monomer diffusion between polymethyl methacrylate (PMMA) and polystyrene (PSTY) during the polymerization process, resulting in a copolymer of the two homogeneous materials. A process for fabricating spherical GRIN elements is discussed where copolymer axial GRIN blanks are thermally compressed using spherical surface molds. This process curves the nominally-straight isoindicial surfaces of the axial GRIN rod to be consistent with the shape found during optimization of the design. Once compressed, the spherical blanks are diamond-turned for final surface figure and finish. Measurement of the GRIN profile is carried out using the Schmidt immersion technique in a Mach-Zehnder interferometer. Tolerances specific to GRIN elements are identified and determined to be readily achievable using the aforementioned manufacturing process.
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Eyepiece designs with radial and spherical polymer gradient-index optical elements
Optical Engineering, 2013Co-Authors: Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, James A. Corsetti, Peter Mccarthy, Duncan T. MooreAbstract:Radial and spherical polymer gradient-index (GRIN) Eyepiece designs are presented. The chromatic behavior of GRIN profiles is constrained to real material properties of a polymethyl methacrylate polystyrene copolymer gradient-index system. Single-element, two-element, and multielement Eyepiece design configurations each demonstrate significant spot diameter and modulation transfer function performance improvements with the use of a GRIN element. A high-performance spherical GRIN Eyepiece design, with 48-deg full field-of-view and 3% distortion, is compared to a similar homogeneous glass solution.
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Design and fabrication of a polymer gradient-index optical element for a high-performance Eyepiece
Optical Engineering, 2013Co-Authors: Anthony J. Visconti, Kejia Fang, Greg R. Schmidt, James A. Corsetti, Peter Mccarthy, Duncan T. MooreAbstract:A 40-deg full field-of-view high-performance Eyepiece design utilizing a polymer spherical gradient-index (GRIN) optical element is presented. In the design process, the GRIN lens material is constrained to current manufacturing capabilities. Several spherical GRIN lens blanks are fabricated from a thermoformable axial GRIN polymethyl methacrylate polystyrene copolymer material. One is diamond turned into a lens for the Eyepiece, and the additional blanks are used to characterize the fabrication process. The spherical GRIN profile is evaluated in the original design, and a tolerance analysis is provided.
Byoungho Lee - One of the best experts on this subject based on the ideXlab platform.
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See-through near-eye display using lightguide and transmissive type optical Eyepiece: index-matched anisotropic crystal lens
Tenth International Conference on Information Optics and Photonics, 2018Co-Authors: John H. Hong, Seokil Moon, Seung-jae Lee, Byoungho LeeAbstract:Various optical Eyepieces have been recently proposed for augmented reality head-mounted display. Most of optical Eyepieces are based on the reflective optical element including half convex mirror, free form optics and diffractive optical element. We present the transmissive type optical Eyepiece: index-matched anisotropic crystal. Also, to compensate the long focal length which is an inherent drawback of index-matched anisotropic crystal, a lightguide is applied to the system. The experimental results and field-of-view analysis are presented to show the feasibility of the proposed idea.
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metasurface Eyepiece for augmented reality
Nature Communications, 2018Co-Authors: Gunyeal Lee, John H. Hong, Seokil Moon, Soon Hyoung Hwang, Hyeokjung Kang, Sohee Jeon, Hwi Kim, Junho Jeong, Byoungho LeeAbstract:Recently, metasurfaces composed of artificially fabricated subwavelength structures have shown remarkable potential for the manipulation of light with unprecedented functionality. Here, we first demonstrate a metasurface application to realize a compact near-eye display system for augmented reality with a wide field of view. A key component is a see-through metalens with an anisotropic response, a high numerical aperture with a large aperture, and broadband characteristics. By virtue of these high-performance features, the metalens can overcome the existing bottleneck imposed by the narrow field of view and bulkiness of current systems, which hinders their usability and further development. Experimental demonstrations with a nanoimprinted large-area see-through metalens are reported, showing full-color imaging with a wide field of view and feasibility of mass production. This work on novel metasurface applications shows great potential for the development of optical display systems for future consumer electronics and computer vision applications.
Yoichi Ochiai - One of the best experts on this subject based on the ideXlab platform.
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Air Mounted Eyepiece: Design Methods for Aerial Optical Functions of Near-Eye and See-Through Display using Transmissive Mirror Device.
arXiv: Human-Computer Interaction, 2017Co-Authors: Yoichi Ochiai, Kazuki Otao, Hiroyuki OsoneAbstract:We propose a novel method to implement an optical see-through head mounted display which renders real aerial images with a wide viewing angle, called an Air Mounted Eyepiece (AME). To achieve the AMD design, we employ an off-the-shelf head mounted display and Transmissive Mirror Device (TMD) which is usually used in aerial real imaging systems. In the proposed method, we replicate the function of the head mounted display (HMD) itself, which is used in the air by using the TMD and presenting a real image of Eyepiece in front of the eye. Moreover, it can realize a wide viewing angle 3D display by placing a virtual lens in front of the eye without wearing an HMD. In addition to enhancing the experience of mixed reality and augmented reality, our proposed method can be used as a 3D imaging method for use in other applications such as in automobiles and desktop work. We aim to contribute to the field of human-computer interaction and the research on Eyepiece interfaces by discussing the advantages and the limitations of this near-eye optical system.
