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公开(公告)号：US20190339520A1
公开(公告)日：2019-11-07
申请号：US16514132
申请日：2019-07-17
Inventor： Tomoaki MIYAMOTO
Abstract: Provided is a head-up display which projects an image on a windshield and forms a virtual image visually recognizable by a viewer. The head-up display includes a display element which displays the image and a projection optical system which guides the image displayed by the display element to the windshield and forms the virtual image. The projection optical system includes at least two mirrors each having a reflective surface with a concave profile. The windshield has a curvature radius Rx in the right-left direction of the windshield which satisfies 0.05
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公开(公告)号：US20230406102A1
公开(公告)日：2023-12-21
申请号：US18197855
申请日：2023-05-16
Inventor： Tomoaki MIYAMOTO , Kizashi MIKAMI
IPC: B60K35/00
CPC classification number: B60K35/00 , B60K2370/332 , B60K2370/23 , B60K2370/1529
Abstract: A display device is a display device that includes a display panel from which display light showing an image exits and a light source that emits basal light for producing the display light. The display device includes: a first diffusion sheet that diffuses the basal light that is to enter the display panel; a second diffusion sheet that is disposed spaced apart from the first diffusion sheet, and diffuses the basal light that is to enter the first diffusion sheet; and an optical member that includes a plurality of optical elements each of which refracts the basal light that is to enter the second diffusion sheet.
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公开(公告)号：US20230384588A1
公开(公告)日：2023-11-30
申请号：US18232583
申请日：2023-08-10
Inventor： Tomoaki MIYAMOTO
CPC classification number: G02B27/0101 , G02B27/0179 , G02B26/0816 , G02B2027/0185 , G02B2027/0187 , G02B2027/0181
Abstract: A head-up display includes: a display that emits light showing an image from a display surface; and a mirror, wherein the image is seen as a virtual image by an observer through a windshield by the light emitted from the display surface of the display toward the mirror being reflected only by a reflecting surface of the mirror toward the windshield, and further being reflected by the windshield toward the observer, and the display surface of the display is directed downward from a direction toward the mirror from the display, and a center of the display surface of the display is located below a the center of gravity of the reflecting surface of the mirror.
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公开(公告)号：US20230067951A1
公开(公告)日：2023-03-02
申请号：US17410664
申请日：2021-08-24
Inventor： Takahiro AKIYOSHI , Tomoaki MIYAMOTO
Abstract: A display system includes a display and a shielding member. The display has a display screen to display an image thereon. The shielding member has an opening, through which light emerging from the display screen passes. The shielding member defines a shape of the light emerging from the display screen. The display screen has a non-rectangular display area to display the image thereon. At least one peripheral edge of the opening defines a shape that conforms to an outer peripheral shape of the display area.
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公开(公告)号：US20210157139A1
公开(公告)日：2021-05-27
申请号：US17167545
申请日：2021-02-04
Inventor： Tsutomu IWASHITA , Tomoaki MIYAMOTO
Abstract: Head-up display includes: display element for displaying an image, and a projection optical system for projecting the image, which is displayed on display element, onto viewing region of viewer. The projection optical system includes combiner that is disposed at a position in an optical path from display element to viewing region of viewer. Combiner has a surface at which light incident from display element enters; the surface has a curved surface shape. Combiner has an effective region corresponding to viewing region of viewer. In the effective region, combiner has a horizontal cross-sectional shape that changes in thickness along from the center toward an end.
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Patent Agency Ranking
公开(公告)号：US20230296892A1
公开(公告)日：2023-09-21
申请号：US18201962
申请日：2023-05-25
Inventor： Takato HADA , Tomoaki MIYAMOTO
CPC classification number: G02B27/0101 , B60K35/00 , G02B2027/0118 , B60K2370/785 , B60K2370/23 , B60K2370/31 , B60K2370/334 , B60K2370/1529
Abstract: A head-up display includes: a display that displays an image; and a projection optical system that forms a virtual image. The projection optical system includes: a first mirror disposed above the display that reflects display light of the image; and a second mirror that reflects the display light from the first mirror toward a display medium onto which the virtual image is projected. Moreover, a first expression that defines a sag height at a position (x, y) relative to an axis that defines a plane is satisfied. Moreover, second and third expressions related to variable in the first expression are also satisfied.
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公开(公告)号：US20220334390A1
公开(公告)日：2022-10-20
申请号：US17849156
申请日：2022-06-24
Inventor： Takato HADA , Tomoaki MIYAMOTO
Abstract: A head-up display includes: a display medium; a display that displays an image; and a projection optical system that forms a virtual image by guiding the image displayed by the display to the display medium. The projection optical system includes a first mirror disposed above the display and reflecting display light of the image. 3
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公开(公告)号：US20220291506A1
公开(公告)日：2022-09-15
申请号：US17675529
申请日：2022-02-18
Inventor： Tomoaki MIYAMOTO , Yasutaka IWAMIZU , Tsubasa OKUYAMA
IPC: G02B27/01
Abstract: A head-up display that projects a virtual image onto a display medium includes: a display that emits display light that forms an image to be displayed; and a first mirror that forms a virtual image on a side opposite an observer across the display medium by guiding an image displayed by the display to the display medium. The first mirror includes: a base having a first surface and a second surface on opposite sides of the base; and a reflection surface provided on the first surface. The base includes an end portion including a rough surface and provided between the reflection surface on the first surface and a perimeter of the base. A rib is provided on a rear side of the end portion.
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公开(公告)号：US20210311305A1
公开(公告)日：2021-10-07
申请号：US17171484
申请日：2021-02-09
Inventor： Takato HADA , Tomoaki MIYAMOTO
Abstract: A head-up display includes: a display medium onto which a virtual image is projected; a display that displays an image; and a projection optical system that forms the virtual image on a side opposite an observer across the display medium. The projection optical system includes a mirror disposed above the display. 3
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公开(公告)号：US20150226954A1
公开(公告)日：2015-08-13
申请号：US14690822
申请日：2015-04-20
Inventor： Tomoaki MIYAMOTO
CPC classification number: G02B25/001 , G02B23/14 , G02B25/00 , G02B25/008 , H04N5/2254
Abstract: An ocular optical system comprising at least five lens elements, and including, in order from a display surface side to an exit side, a first lens unit having negative optical power, a second lens unit having positive optical power, and a third lens unit having positive optical power, wherein the second lens unit moves along an optical axis for adjustment of diopter scale, and a finder optical system comprising a display device having a display surface on which an image is displayed, and the above-mentioned ocular optical system.
Abstract translation: 一种眼科光学系统，包括至少五个透镜元件，并且从显示表面侧到出射侧依次包括具有负光焦度的第一透镜单元，具有正光焦度的第二透镜单元和具有正光焦度的第三透镜单元， 正光学功率，其中第二透镜单元沿着光轴移动以调节屈光度刻度;以及取景器光学系统，其包括具有显示图像的显示面的显示装置和上述眼睛光学系统。
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