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公开(公告)号：US09798124B2
公开(公告)日：2017-10-24
申请号：US15213678
申请日：2016-07-19
发明人： Ryoji Kondo
CPC分类号： G02B17/0856 , G02B5/13 , G02B17/0848 , G02B17/086 , G02B27/0172 , G06F3/011 , H04N5/374
摘要： The image display apparatus includes an optical system causing a light flux entering from an original image by being transmitted through a fifth surface to reflect at a fourth surface, a third surface, a first surface and a second surface and then cause the light flux to be transmitted through the first surface and exit toward an exit pupil, causing the light flux to form an intermediate image and causing optical paths to intersect with each other. The optical system satisfies 0.62≦L12/f≦5.00 and 1.80≦L45/L12≦5.00. When a distance between hit points of a central-view-angle principal ray on the surfaces is referred to as a hit point distance, L45 represents a hit point distance between the fourth and fifth surfaces, L12 represents a hit point distance between the first and second surfaces, and f represents a focal length of the optical system.
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公开(公告)号：US12013535B2
公开(公告)日：2024-06-18
申请号：US17150192
申请日：2021-01-15
发明人： Masakazu Tohara , Ryoji Kondo
CPC分类号： G02B27/0172 , G02B5/3083 , G02B13/18 , G02B25/001 , G02B27/0018 , G02B27/283 , G02B2027/012 , G02B2027/0132
摘要： The optical system introduces light from a display element displaying an image to an observer. The optical system includes in order from the display element toward the observer, a first phase plate, a semi-transmissive reflective surface, a lens, a second phase plate, and a polarization beam splitter configured to reflect a first linearly polarized light and transmit a second linearly polarized light whose polarization direction is orthogonal to that of the first linearly polarized light. The semi-transmissive reflective surface has a transmittance smaller than a reflectance thereof.
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公开(公告)号：US10203502B2
公开(公告)日：2019-02-12
申请号：US15211210
申请日：2016-07-15
发明人： Ryoji Kondo
摘要： The image display apparatus includes an optical system causing a light flux entering from an original image through an entrance surface to reflect at a part of reflective surfaces, causing the reflected light flux to form an intermediate image, and then causing the light flux to reflect at another part of the reflective surfaces and exit from an exit surface toward an exit pupil located in a first direction. The optical element includes a first optical portion, a second optical portion provided in a second direction orthogonal to the first direction with respect to the first optical portion, and a connection portion to be connected to a holding portion provided in the apparatus. The connection portion is formed on a side face of the first optical portion so as to be included within a maximum width of the second optical portion.
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公开(公告)号：US20170023782A1
公开(公告)日：2017-01-26
申请号：US15213678
申请日：2016-07-19
发明人： Ryoji Kondo
CPC分类号： G02B17/0856 , G02B5/13 , G02B17/0848 , G02B17/086 , G02B27/0172 , G06F3/011 , H04N5/374
摘要： The image display apparatus includes an optical system causing a light flux entering from an original image by being transmitted through a fifth surface to reflect at a fourth surface, a third surface, a first surface and a second surface and then cause the light flux to be transmitted through the first surface and exit toward an exit pupil, causing the light flux to form an intermediate image and causing optical paths to intersect with each other. The optical system satisfies 0.62≦L12/f≦5.00 and 1.80≦L45/L12≦5.00. When a distance between hit points of a central-view-angle principal ray on the surfaces is referred to as a hit point distance, L45 represents a hit point distance between the fourth and fifth surfaces, L12 represents a hit point distance between the first and second surfaces, and f represents a focal length of the optical system.
摘要翻译： 该图像显示装置包括：光学系统，其通过透过第五表面传输从原始图像进入的光束，以在第四表面，第三表面，第一表面和第二表面反射，然后使光通量为 透射通过第一表面并朝向出射光瞳出射，导致光束形成中间图像并使光路彼此相交。 光学系统满足0.62≤L12/f≤5.00和1.80≤L45/L12≤5.00。 当表面上的中心视角主光线的点的距离被称为命中距离时，L45表示第四和第五表面之间的命中距离，L12表示第一和第五表面之间的命中距离 第二表面，f表示光学系统的焦距。
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公开(公告)号：US20230091523A1
公开(公告)日：2023-03-23
申请号：US17932848
申请日：2022-09-16
发明人： Ryoji Kondo
摘要： An optical apparatus includes an eyepiece optical system including a first linear polarization plate and configured to guide light from an image display element to an eye of an observer, and a second linear polarization plate disposed outside an optical path from the image display element to the eye of the observer. The first linear polarization plate is disposed closest to the observer in the eyepiece optical system. A transmission axis direction of the first linear polarization plate and a transmission axis direction of the second linear polarization plate are different from each other.
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公开(公告)号：US20190064512A1
公开(公告)日：2019-02-28
申请号：US16111448
申请日：2018-08-24
发明人： Ryoji Kondo , Masakazu Tohara
摘要： An image display apparatus includes an observation optical system that includes a prism having first to third surfaces. The observation optical system has a first section is a section that contains an optical path of light from a center of the original image to a center of the exit pupil through the third surface, the first surface, the second surface, and the first surface, and a second section is a section orthogonal to the first section. A reflection area for an internal reflection of the light on the first surface has a center part that is concave toward the exit pupil on the second section and a peripheral part at both sides of the center part has a convex shape toward the exit pupil.
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公开(公告)号：US20170023791A1
公开(公告)日：2017-01-26
申请号：US15211210
申请日：2016-07-15
发明人： Ryoji Kondo
IPC分类号： G02B27/01
CPC分类号： G02B27/0172 , G02B17/0848 , G02B17/086 , G02B27/0176 , G02B2027/0169
摘要： The image display apparatus includes an optical system causing a light flux entering from an original image through an entrance surface to reflect at a part of reflective surfaces, causing the reflected light flux to form an intermediate image, and then causing the light flux to reflect at another part of the reflective surfaces and exit from an exit surface toward an exit pupil located in a first direction. The optical element includes a first optical portion, a second optical portion provided in a second direction orthogonal to the first direction with respect to the first optical portion, and a connection portion to be connected to a holding portion provided in the apparatus. The connection portion is formed on a side face of the first optical portion so as to be included within a maximum width of the second optical portion.
摘要翻译： 图像显示装置包括：光学系统，其使从原始图像通过入射面进入的光束在反射面的一部分反射，使反射光束形成中间图像，然后使光通量反射 反射表面的另一部分并且从出射表面朝向位于第一方向的出射光瞳离开。 光学元件包括第一光学部分，第二光学部分，设置在与第一光学部分相对于第一方向正交的第二方向上，以及连接部分，连接到设置在该装置中的保持部分。 连接部分形成在第一光学部分的侧面上，以便被包括在第二光学部分的最大宽度内。
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公开(公告)号：US11977222B2
公开(公告)日：2024-05-07
申请号：US17986055
申请日：2022-11-14
发明人： Masakazu Tohara , Norifumi Kajimoto , Ryoji Kondo
CPC分类号： G02B27/0025 , G02B25/001 , G02B27/283 , G06F1/163 , G02B5/3083
摘要： An image display apparatus includes an image display element, and an eyepiece optical system configured to guide light from the image display element to an exit pupil. The eyepiece optical system includes at least one correction element having different characteristics between a central area and a peripheral area different from the central area. When first light is light emitted from a central portion of the image display element, and second light is light emitted from an outermost peripheral portion of the image display element, the characteristics of the at least one correction element are set such that color drift of the second light after pass through the peripheral area from the first light after pass through the central area is less than color drift of the second light before pass through the peripheral area from the first light before pass through the central area.
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公开(公告)号：US11347048B2
公开(公告)日：2022-05-31
申请号：US16690953
申请日：2019-11-21
发明人： Masakazu Tohara , Ryoji Kondo
摘要： provided is an image display device that can reduce deterioration in image quality in a peripheral portion of an eyepiece optical system, includes an eyepiece optical system having a polarization element and guiding light from an image display element toward eyeballs of an observer, in which the eyepiece optical system includes a first lens for determining an emission angle from the image display element, and a surface of the first lens on the image display element side has an aspherical shape having a convex shape in a region including an optical axis of the first lens, wherein the aspherical shape has an inflection point within an optically effective region in a cross section including the optical axis, and wherein an eye relief E of the eyepiece optical system satisfies 15 mm≤E≤25 mm.
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公开(公告)号：US20230152577A1
公开(公告)日：2023-05-18
申请号：US17986055
申请日：2022-11-14
发明人： Masakazu Tohara , Norifumi Kajimoto , Ryoji Kondo
CPC分类号： G02B27/0025 , G02B25/001 , G02B27/283 , G06F1/163 , G02B5/3083
摘要： An image display apparatus includes an image display element, and an eyepiece optical system configured to guide light from the image display element to an exit pupil. The eyepiece optical system includes at least one correction element having different characteristics between a central area and a peripheral area different from the central area. When first light is light emitted from a central portion of the image display element, and second light is light emitted from an outermost peripheral portion of the image display element, the characteristics of the at least one correction element are set such that color drift of the second light after pass through the peripheral area from the first light after pass through the central area is less than color drift of the second light before pass through the peripheral area from the first light before pass through the central area.
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