-
公开(公告)号：US20160202479A1
公开(公告)日：2016-07-14
申请号：US15072779
申请日：2016-03-17
Inventor： Hiroaki OKAYAMA , Satoshi KUZUHARA
CPC classification number: G02B27/0101 , B60R1/00 , B60R11/02 , B60R2300/205 , G02B17/023 , G02B27/01 , G02B2027/0123 , G02B2027/0145 , G02B2027/0165
Abstract: A head-up display is mounted to a vehicle having a windshield, and includes a display element configured to display an image, a first optical system configured to reflect the image displayed by the display element and project the image onto the windshield; and a second optical system configured to reflect the image displayed by the display element and project the image onto the windshield. The image projected with the first optical system is projected onto the windshield at a position below a position of the image projected with the second optical system.
Abstract translation: 平视显示器被安装到具有挡风玻璃的车辆上，并且包括被配置为显示图像的显示元件，配置为反映由显示元件显示的图像并将图像投影到挡风玻璃上的第一光学系统; 以及第二光学系统，被配置为反射由显示元件显示的图像并将图像投影到挡风玻璃上。 用第一光学系统投射的图像在与第二光学系统投射的图像的位置下方的位置处投影到挡风玻璃上。
-
公开(公告)号：US20160195727A1
公开(公告)日：2016-07-07
申请号：US15070475
申请日：2016-03-15
Inventor： Satoshi KUZUHARA , Hiroaki OKAYAMA
CPC classification number: G02B27/0179 , B60K35/00 , B60K2370/334 , G02B3/08 , G02B27/01 , G02B27/0101 , G02B2027/0127 , G02B2027/0145 , G02B2027/0185 , H04N5/64 , H04N5/74 , H04N9/3147
Abstract: A head-up display according to the present disclosure is mounted to a vehicle having a windshield and allows an observer to visually recognize a virtual image. The head-up display includes a display element configured to display an image, a reflection optical system configured to reflect the image displayed by the display element and project the image onto the windshield, and a refraction optical system disposed between the reflection optical system and the windshield and having optical power. The reflection optical system reflects the image toward the refraction optical system. The head-up display is configured such that a position where a center optical path of the image emitted from the display element is incident on the refraction optical system is located at a side of the windshield of the vehicle relative to a center axis of the refraction optical system.
Abstract translation: 根据本公开的平视显示器被安装到具有挡风玻璃的车辆，并允许观察者在视觉上识别虚拟图像。 平视显示器包括被配置为显示图像的显示元件，被配置为反射由显示元件显示的图像并将图像投影到挡风玻璃上的反射光学系统，以及设置在反射光学系统和反射光学系统之间的折射光学系统 挡风玻璃并具有光功率。 反射光学系统将图像反射到折射光学系统。 平视显示器被配置为使得从显示元件发射的图像的中心光路入射到折射光学系统上的位置位于车辆挡风玻璃相对于折射的中心轴线的一侧 光学系统。
-
公开(公告)号：US20250116860A1
公开(公告)日：2025-04-10
申请号：US18983957
申请日：2024-12-17
Inventor： Kazuhiro MINAMI , Satoshi KUZUHARA , Ken'ichi KASAZUMI , Kosuke IMAWAKA
Abstract: A light guide includes an exit extension region including a diffraction structure dividing an image light ray propagating in a first direction intersecting a thickness direction of a body, into image light rays propagating in a second direction intersecting the first direction, in the first direction, and allowing them to emerge therefrom. At least one part of the region satisfies that when refractive indices of media on individual incident and exit sides of a ray relative to the region are assumed to be equal to each other, an exit angle θ_out of a ray emerging from the region at the highest diffraction efficiency in a plane including a normal line of the region is not smaller than 15° and is not greater than 45°, and an incident angle θ_in of a ray incident on the region in the plane is greater than θ_out by 14° or more.
-
公开(公告)号：US20240111161A1
公开(公告)日：2024-04-04
申请号：US18532148
申请日：2023-12-07
Inventor： Satoshi KUZUHARA , Kazuhiro MINAMI
CPC classification number: G02B27/0172 , G02B6/34
Abstract: An optical system includes a light guide for guiding an image light ray output from a display element to a field of view region as a virtual image. The light guide includes a periodic structure formed in the body having a plate shape. The periodic structure has periodicity in three predetermined directions intersecting each other within a predetermined plane perpendicular to a thickness direction of the body. The periodic structure includes an in-coupling region dividing the image light ray into a plurality of image light rays and allowing the plurality of image light rays to propagate within the body in a plurality of branch directions including branch directions respectively parallel to the predetermined directions, and an exit region allowing the plurality of image light rays propagating in the plurality of branch directions within the body to emerge from the body toward the field of view region.
-
公开(公告)号：US20230408746A1
公开(公告)日：2023-12-21
申请号：US18240764
申请日：2023-08-31
Inventor： Satoshi KUZUHARA , Kazuhiro MINAMI , Hiroaki OKAYAMA
CPC classification number: G02B6/0016 , G02B27/0075 , G02B6/0036 , G02B27/0172
Abstract: An optical system includes: a projection optical system for projecting an image light ray output from a display element and forming an image; and a light guide including an in-coupling region for guiding the ray to an inside of the guide and allowing it to travel in a first axis direction within the guide, and a propagation region for allowing the ray from the in-coupling region to propagate in the direction of the first axis, and allowing part of the ray to travel in a predetermined direction including a directional component of a second axis perpendicular to the first axis. In an optical path of the ray, a distance from the projection optical system to an entrance pupil of the projection optical system relative to the element in a plane perpendicular to the first axis is longer than a distance from the projection optical system to the in-coupling region.
-
Patent Agency Ranking
公开(公告)号：US20230393392A1
公开(公告)日：2023-12-07
申请号：US18236506
申请日：2023-08-22
Inventor： Kazuhiro MINAMI , Satoshi KUZUHARA
CPC classification number: G02B27/0101 , G02B27/0081 , G02B6/0016 , G02B2027/013 , G02B6/0038 , G02B2027/0196 , G02B27/1086
Abstract: A head-up display system includes a display that emits a light flux and a light guide body that guides the light flux to the light-transmitting member. A light beam at a center of the light flux emitted from the display is incident while being inclined with respect to a normal direction of the incident surface of the light guide body. The light flux incident on the incident surface of the light guide body is changed in a traveling direction in the light guide body, the light flux is replicated into a plurality of light fluxes in a horizontal direction of the virtual image, and then the replicated light fluxes are further replicated in a vertical direction of the virtual image to be emitted from the emission surface so as to expand the visual recognition region. A light beam at a center of the light fluxes emitted from the light guide body is emitted toward the light-transmitting member while being inclined with respect to a normal direction of the emission surface of the light guide body.
-
公开(公告)号：US20230161156A1
公开(公告)日：2023-05-25
申请号：US18095313
申请日：2023-01-10
Inventor： Satoshi KUZUHARA , Hiroaki OKAYAMA
CPC classification number: G02B27/0101 , B60R11/0229 , G02B2027/0187 , B60R2300/205 , G02B2027/0183 , B60R2011/0026
Abstract: A head-up display is configured to project an image on a transparent reflection member to cause an observer to visually recognize a virtual image, and includes a display device configured to display the image, and a projection optical system configured to project the image displayed by the display device as the virtual image for the observer. The projection optical system is configured to form an image as an intermediate image, and includes a first lens configured to condense light, and a first optical element configured to diffuse light. The first lens and the first optical element are disposed in this order along an optical path from the display device. The first lens is inclined with respect to a reference beam which is defined as a beam reaching a center of a viewpoint region of the observer and corresponding to a center of the virtual image.
-
公开(公告)号：US20230047387A1
公开(公告)日：2023-02-16
申请号：US17970942
申请日：2022-10-21
Inventor： Satoshi KUZUHARA , Tsuneo UCHIDA
IPC: G02B5/04
Abstract: A prism includes a first intermediate imaging position at which a component in a first direction of the light flux is imaged and a second intermediate imaging position at which a component in a second direction orthogonal to the first direction of the light flux is imaged, different from the first intermediate imaging position. At least one of the first intermediate imaging position and the second intermediate imaging position lying within a first range from the second surface between the first surface and the second surface or lying within a second range from the second surface between the second surface and the third surface. The first range has a length less than one-half of an optical path length from the first surface to the second surface, and the second range has a length less than one-half of the optical path length from the second surface to the third surface.
-
公开(公告)号：US20210373304A1
公开(公告)日：2021-12-02
申请号：US17405723
申请日：2021-08-18
Inventor： Satoshi KUZUHARA , Tsuneo UCHIDA
Abstract: The present disclosure provides an optical system that includes a prism having an incident surface, an exit surface, and one or more reflecting surfaces. The optical system includes a first scanning element configured to scan in a first direction a light that enters and reflect the light in a direction of the incident surface of the prism, and a second scanning element configured to scan in a second direction the light that exits from the exit surface of the prism, the second direction being orthogonal to the first direction. The incident surface of the prism has a convex shape with respect to the first scanning element.
-
公开(公告)号：US20210109348A1
公开(公告)日：2021-04-15
申请号：US17128417
申请日：2020-12-21
Inventor： Satoshi KUZUHARA , Hiroaki OKAYAMA
Abstract: A head-up display for displaying an image as a virtual image to an observer includes a projection optical system that includes a lens element and a reflecting mirror. A light beam reaching a center of a viewpoint region of the observer and corresponding to a center of the virtual image is defined as a reference light beam. The lens element is inclined with respect to the reference light beam. The lens element includes an entrance surface on which light of the image is incident, an exit surface from which light of the image emerges, a first edge portion, and a second edge portion. The second edge portion is inclined so that, when light emitted from the image travels through the entrance surface, the second edge portion, and the exit surface in this order, light emerging from the exit surface reaches below a central portion of the reflecting mirror.
-
-
-
-
-
-
-
-
-
Search Results
45
records
(took 0.031 seconds)
