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公开(公告)号：US20130335828A1
公开(公告)日：2013-12-19
申请号：US13968912
申请日：2013-08-16
Applicant: SEIKO EPSON CORPORATION
Inventor： Takahiro TOTANI , Masayuki TAKAGI , Toshiaki MIYAO , Akira KOMATSU , Takashi TAKEDA
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B6/00 , G02B6/0045 , G02B2027/0112 , G02B2027/0118 , G02B2027/0123 , G02B2027/0125 , G02B2027/0178 , H04N13/111 , H04N13/332 , H04N13/344
Abstract: A half mirror layer has an angle dependency in which when an angle of incidence becomes larger than the angle of incidence range of image light, reflectance increases, such that it is possible to prevent unintended light, which is emitted to a light transmitting member from a light guiding member and is reflected inside a light transmitting member, from being returned to a light emission portion of the light guiding member after passing through the half mirror layer as a reflective film at a relatively large angle of incidence. Therefore, it is possible to prevent the image light passed through the light transmitting member from becoming ghost light while mitigating the demand for increasing processing accuracy of the light transmitting member, and bonding accuracy between the light guiding member and the light transmitting member, and thereby it is possible to make a virtual image displayed by a virtual image display device have a high quality.
Abstract translation: 半透镜层具有角度依赖性，其中当入射角变得大于图像光的入射范围时，反射率增加，使得可以防止从光发射部件发射的非预期光 导光构件，并且在透光构件内反射，以相对较大的入射角度通过作为反射膜的半反射镜层返回到导光构件的发光部。 因此，可以防止通过透光部件的图像光变得重影，同时减轻对透光部件的加工精度提高的要求，以及导光部件与透光部件的接合精度， 可以使由虚拟图像显示装置显示的虚拟图像具有高质量。
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公开(公告)号：US20130278497A1
公开(公告)日：2013-10-24
申请号：US13860840
申请日：2013-04-11
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Takahiro TOTANI , Takashi TAKEDA , Akira KOMATSU , Toshiaki MIYAO
IPC: G06F3/01
CPC classification number: G06F3/012 , G02B26/10 , G02B27/017 , G02B2027/0178 , G02B2027/0187
Abstract: An attitude information detection unit detects the attitude of a wearer, and an arithmetic processing unit and a device position drive unit, which form an image area position adjustment mechanism, translate a liquid crystal display device that is a light modulating device relative to a light guide section in a plane parallel to a light incident surface of the light guide section based on a detection result from the attitude information detection unit, whereby the position of an image area can be so changed that an image moves in the direction opposite the direction in which the wearer moves. As a result, when the wearer moves, the image does not follow the motion of the wearer as if the image remained still, whereby the wearer who moves will have a reduced amount of unpleasant sensation resulting from the motion.
Abstract translation: 姿态信息检测单元检测佩戴者的姿态，以及形成图像区域位置调整机构的运算处理单元和装置位置驱动单元，将作为光调制装置的液晶显示装置相对于导光体 基于来自姿势信息检测单元的检测结果平行于导光部的光入射面的平面中的图像区域的位置可以如此变化，使得图像沿与其方向相反的方向移动， 穿着者移动。 结果，当佩戴者移动时，如图像保持静止，图像不会跟随穿着者的运动，因此移动的穿着者将具有由运动引起的令人不快的感觉的减少量。
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公开(公告)号：US20240248306A1
公开(公告)日：2024-07-25
申请号：US18415522
申请日：2024-01-17
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B2027/0112 , G02B2027/0178
Abstract: A virtual image display device includes: a display member including a wavelength-converting region that emits fluorescence upon being excited by image light as a pixel display region, a projection optical system that irradiates the wavelength-converting region with the image light, a light-blocking member arranged at the external side of the display member for suppressing incidence of external light on the wavelength-converting region, a first polarizing member arranged at the face side of the display member and including a first polarizing region, a second polarizing member arranged at the external side of a position of the first polarizing member and including a second polarizing region for restricting the external light to a second polarization direction, and a polarization separation lens element arranged at the face side of the first polarizing member and having refractive power that selectively acts on polarized light of the image light.
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公开(公告)号：US20240142780A1
公开(公告)日：2024-05-02
申请号：US18494758
申请日：2023-10-25
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA , Atsushi SAITO
CPC classification number: G02B27/0172 , G02B27/0179 , G02B27/0955 , G02B27/283 , G02F1/294 , G02B2027/0185
Abstract: A virtual image display device includes a first image display device configured to display a virtual image, a second image display device configured to display a virtual image, a line-of-sight direction distance detection device configured to detect an object distance in a line-of-sight direction of a wearer, an image display control unit configured to control display states of the first image display device and the second image display device in accordance with the object distance, and a liquid crystal lens configured to be disposed in front of eyes of the wearer and configured such that a focal length changes with respect to a s-polarization component of image light emitted from the first image display device and the second image display device.
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25.发明申请公开(公告)号：US20200333610A1
公开(公告)日：2020-10-22
申请号：US16918008
申请日：2020-07-01
Applicant: SEIKO EPSON CORPORATION
Inventor： Masatoshi YONEKUBO , Osamu YOKOYAMA , Takashi TAKEDA , Mitsutaka IDE , Daisuke ISHIDA
Abstract: The image display device includes an image generating unit that emits first image light, a pupil expanding element that expands a diameter of a light flux included in the first image light from the image generating unit to obtain second image light, a first light condensing optical system that condenses the second image light and forms an intermediate image, and a second light condensing optical system that condenses light from the intermediate image and generates a virtual image on eye of a viewer, in a plane including at least the image generating unit, the pupil expanding element, and the eye of the viewer, a maximum emission angle of the first image light is smaller than a maximum viewing angle of the virtual image, and the diameter of the light flux included in the second image light is greater than that of a light flux included in the virtual image.
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Patent Agency Ranking
公开(公告)号：US20200209625A1
公开(公告)日：2020-07-02
申请号：US16727032
申请日：2019-12-26
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA , Toshiyuki KASAI
Abstract: In a first display device and a second display device of a display mechanism, a first video image and a second video image having mutually different display contents are visually recognized, and further, display positions of the first video image and the second video image can be changed by first and second posture adjustment mechanisms that are a posture adjustment mechanism.
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公开(公告)号：US20200064638A1
公开(公告)日：2020-02-27
申请号：US16673010
申请日：2019-11-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Takahiro TOTANI , Takashi TAKEDA , Akira KOMATSU , Toshiaki MIYAO
Abstract: A see-through display apparatus includes an image display apparatus configured to emit a video light, a light guide apparatus configured to guide the video light and to output the video light in a first direction, and a light control shade disposed opposite to the first direction with respect to the light guide apparatus. The light control shade is configured to control a transmittance of an outside light based on a luminance of the outside light. A first response time of the light control shade when the outside light changes from a lower luminance to a higher luminance is slower than a second response time of the light control shade when the outside light changes from the higher luminance to the lower luminance.
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公开(公告)号：US20190113764A1
公开(公告)日：2019-04-18
申请号：US16162796
申请日：2018-10-17
Applicant: SEIKO EPSON CORPORATION
Inventor： Tokito YAMAGUCHI , Masayuki TAKAGI , Toshiaki MIYAO , Akira KOMATSU , Takashi TAKEDA
Abstract: An image display device includes a plurality of display elements configured to emit image light corresponding to a plurality of separate areas, and an ocular optical system configured to emit, to a position corresponding to an eye of an observer, the image light emitted from the plurality of display elements. The ocular optical system causes images to overlap with each other in a blending area including a boundary between the plurality of areas. An overlapping angle width in a direction orthogonal to the boundary of the blending area on a central visual field side is smaller than an overlapping angle width in the direction orthogonal to the boundary of the blending area on a peripheral visual field side.
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公开(公告)号：US20190094519A1
公开(公告)日：2019-03-28
申请号：US16143869
申请日：2018-09-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Akira KOMATSU , Takashi TAKEDA , Toshiaki MIYAO , Masayuki TAKAGI , Tokito YAMAGUCHI
IPC: G02B25/00 , G06F3/01 , G02B5/02 , H04N13/332
Abstract: By configuring a micro structure portion, an image display device, and an eyepiece optical system to satisfy Expression (1), a diffusion effect of an appropriate extent can be imparted to image light with a relatively simple configuration, by taking into account the size of each of pixels constituting the image display device that is an image element, gaps between the pixels are made less noticeable, and a favorable state of visibility of an image can be obtained.
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公开(公告)号：US20190079299A1
公开(公告)日：2019-03-14
申请号：US16130521
申请日：2018-09-13
Applicant: SEIKO EPSON CORPORATION
Inventor： Toshiaki MIYAO , Masayuki TAKAGI , Takashi TAKEDA , Akira KOMATSU , Tokito YAMAGUCHI
Abstract: By removing part of a lens effective diameter range in a cut lens, a lens is reduced in size and weight in an HMD that trends toward a larger device size. At this time, by making an area to be removed within the lens effective diameter range to be an area on a nose side, reductions in size and weight can be achieved while considering influence on image quality or fitting to a human face.
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