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公开(公告)号：US20240248325A1
公开(公告)日：2024-07-25
申请号：US18397485
申请日：2023-12-27
发明人： Katsunari Ashimine
IPC分类号： G02B30/56
CPC分类号： G02B30/56
摘要： An aerial image display apparatus includes a retroreflecting layer in which a design including an opening for generating an aerial image is formed, a polarizer on the bottom side of the retroreflecting layer, a diffusion layer disposed below the polarizer, a light source disposed below the diffusion layer, and a polarizing beam splitter on the upper surface side of the retroreflecting layer, wherein the aerial image of the design is displayed above a polarizing beam splitter using the light source located directly below.
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公开(公告)号：US20230021677A1
公开(公告)日：2023-01-26
申请号：US17867947
申请日：2022-07-19
发明人： Katsunari Ashimine , Hiroki Sato
摘要： A display device includes a transparent light guiding layer having a bottom face on which a light diffusing region is formed as a design, a retroreflective layer, a polarizing beam that allows light having a first polarization direction to pass therethrough, and an emission unit configured to emit into the light guiding layer the light having the first polarization direction, or light having a different second polarization direction. When light having the first polarization direction is emitted, light reflected by the light diffusing region passes through the polarizing beam splitter such that the design is viewable. When light having the second polarization direction is emitted, light reflected by the retroreflective layer passes through the polarizing beam splitter such that an aerial image of the design is viewable.
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公开(公告)号：US20220382066A1
公开(公告)日：2022-12-01
申请号：US17742713
申请日：2022-05-12
发明人： Kazuya Hikichi , Katsunari Ashimine
摘要： A display device includes a display capable of displaying an image, a beam-splitter that reflects light from the display, a retro-reflective member that reflects the light from the beam-splitter in the same direction as incident light, a first variable unit that varies an inclination angle of the display, and a second variable unit that varies an inclination angle of the beam-splitter, and prevents the image of the display from entering an aerial image.
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公开(公告)号：US20220308347A1
公开(公告)日：2022-09-29
申请号：US17703000
申请日：2022-03-24
申请人： Alps Alpine Co., LTD
发明人： Katsunari Ashimine
摘要： A display device of one implementation of the present disclosure includes a light source, a retroreflective member disposed in a range which can be observed from a preset observation range of an observer, and a beam splitter which reflects light from the light source toward the retroreflective member and transmits the light reflected by the retroreflective member. The light source and the retroreflective member are positioned so that light specularly reflected by the retroreflective member does not enter the observation range.
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5.发明公开公开(公告)号：US20230288613A1
公开(公告)日：2023-09-14
申请号：US18165427
申请日：2023-02-07
CPC分类号： G02B3/0031 , G02B3/0037 , G02B30/56 , C03B11/00 , B29D11/00365 , C03B2215/46
摘要： A method for manufacturing an optical element includes forming an optical element unit comprised of an optical material such as glass and having an outer shape of a regular triangle or a regular hexagon, arranging a plurality of optical element units two-dimensionally on a substrate so as to have a structure imitating a molecular structure of graphene or a carbon nanotube, and processing the substrate on which the plurality of optical element units are mounted into a desired surface shape.
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公开(公告)号：US20220308348A1
公开(公告)日：2022-09-29
申请号：US17703033
申请日：2022-03-24
申请人： Alps Alpine Co., LTD
发明人： Katsunari Ashimine
摘要： Implementations of a display device of the present disclosure include a transparent light guide plate in which a light guide plate image that is an original video of an aerial image is formed on a bottom portion, a light source configured to emit light L from a side portion of the light guide plate toward the inside of the light guide plate, a polarization beam splitter disposed in parallel with the light guide plate and above the light guide plate, a λ/4 plate disposed below the light guide plate, and a retroreflective member disposed in parallel with the light guide plate and below the λ/4 plate, which retroreflects the light guide plate image to display the aerial image.
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公开(公告)号：US20230401884A1
公开(公告)日：2023-12-14
申请号：US18312749
申请日：2023-05-05
发明人： Katsunari Ashimine
摘要： A biometric authentication device of the present invention includes a light guide layer on which a light diffusion unit for displaying an aerial image representing a design of a living body at a height is formed, a light source that irradiates the light guide layer with light, a polarized beam splitter disposed on an upper surface side of the light guide layer, a retroreflective layer disposed on a bottom surface side of the light guide layer, and an imaging camera that captures an image of a living body superimposed on the aerial image through an opening formed in the retroreflective layer, and performs biometric authentication based on an image captured by an imaging camera.
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公开(公告)号：US20220373818A1
公开(公告)日：2022-11-24
申请号：US17744914
申请日：2022-05-16
发明人： Katsunari Ashimine , Hiroki Sato
摘要： One form of a display device of the present disclosure includes a first optical structure and a second optical structure stacked on the first optical structure. The first optical structure includes a light source, a light guide layer, a reflection layer, and a half mirror, and a light diffusion surface for generating a design of a multiple image that is formed on a bottom portion of the light guide layer. The second optical structure includes a light source, a light guide layer, a retroreflective layer, and a half mirror, and a light diffusion surface for generating a design of the aerial image is formed on a bottom portion of the light guide layer. The aerial image and the multiple image are simultaneously observed from the viewpoint of the user, and a sense of depth or a stereoscopic effect can be imparted to the aerial image.
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