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1. 发明公开

EP3783433A1 ROOM 无效
公开(公告)号：EP3783433A1
公开(公告)日：2021-02-24
申请号：EP19789077.5
申请日：2019-04-03
申请人： Nitto Denko Corporation
发明人： YAEGASHI, Masahiro
IPC分类号： G03B21/604 , G02B5/30 , G03B21/14 , H04N5/74
摘要： There is provided a room in which a projector-projected image having high contrast can be achieved even under a bright environment. The room includes: a ceiling; a floor; and a wall having a pair of wall surfaces opposite to each other, and another pair of wall surfaces opposite to each other in a direction intersecting the pair of wall surfaces. One of the pair of wall surfaces and the other pair of wall surfaces has a window. The wall surface opposite to the wall surface having the window has arranged thereon a first screen, and/or the wall surface on an opposite side in a lower culmination direction has arranged thereon a second screen. An inner side of the window, and a projection-side surface of the first screen and/or a projection-side surface of the second screen each have arranged thereon a polarizing plate. An absorption axis direction of a polarizer of the polarizing plate of the window, and an absorption axis direction of a polarizer of the polarizing plate of the first screen and/or an absorption axis direction of a polarizer of the polarizing plate of the second screen are substantially perpendicular or parallel to each other.

2. 发明公开

EP4239380A1 WHITEBOARD FILM, WHITEBOARD, PEEP PREVENTION SYSTEM 无效
公开(公告)号：EP4239380A1
公开(公告)日：2023-09-06
申请号：EP21885925.4
申请日：2021-10-14
申请人： Nitto Denko Corporation
发明人： TOYOTA, Yuji , YAEGASHI, Masahiro
IPC分类号： G02B5/30 , B43L1/10 , G03B21/604
摘要： A whiteboard film ( 100 ) according to an embodiment of the present invention includes: a diffuse reflection layer ( 40 ) to diffuse-reflect visible light; an absorptive polarizing layer ( 20 ) having a first transmission axis that is parallel to a first direction; and a reflective polarizing layer ( 10 ) being disposed between the diffuse reflection layer ( 40 ) and the absorptive polarizing layer ( 20 ) and having a second transmission axis that is substantially parallel to the first direction. A whiteboard ( 100a ) according to an embodiment of the present invention includes: a diffuse reflection plate ( 40a ) to diffuse-reflect visible light; an absorptive polarizing layer ( 20 ) having a first transmission axis that is parallel to a first direction; and a reflective polarizing layer ( 10 ) being disposed between the diffuse reflection plate ( 40a ) and the absorptive polarizing layer ( 20 ) and having a second transmission axis that is substantially parallel to the first direction.

3. 发明公开

EP3532897A1 AFFICHEUR 审中-公开
公开(公告)号：EP3532897A1
公开(公告)日：2019-09-04
申请号：EP17797586.9
申请日：2017-10-30
申请人： Valeo Comfort and Driving Assistance
发明人： BLANC, Eric
IPC分类号： G03B21/604 , G02B27/01

4. 发明授权

EP3151062B1 VIDEO PROJECTION STRUCTURE, PRODUCTION METHOD FOR VIDEO PROJECTION STRUCTURE, VIDEO PROJECTION METHOD, AND AUTOMOBILE WINDOW 有权转让
公开(公告)号：EP3151062B1
公开(公告)日：2024-08-07
申请号：EP15802728.4
申请日：2015-06-01
IPC分类号： G03B21/60 , G02B5/02 , G02B5/08 , G09F19/18 , G03B21/56 , G03B21/602 , G03B21/604 , G03B21/62 , G03B21/625
CPC分类号： G02B5/0236 , G02B5/0221 , G03B21/602

5. 发明公开

EP3853643A1 SYSTEM AND METHODS FOR LASER SCATTERING, DEVIATION AND MANIPULATION 审中-公开
公开(公告)号：EP3853643A1
公开(公告)日：2021-07-28
申请号：EP19861812.6
申请日：2019-06-26
申请人： Hyperstealth Biotechnology Corporation
发明人： CRAMER, Guy
IPC分类号： G02B3/06 , F41H3/00 , G02B1/11 , G02B5/18 , G03B21/602 , G03B21/604 , H04N13/363

6. 发明公开

EP3848755A1 SYSTEME DE PROJECTION COMPRENANT UN VITRAGE POUR ECRAN TRANSPARENT 无效
公开(公告)号：EP3848755A1
公开(公告)日：2021-07-14
申请号：EP21150159.8
申请日：2021-01-05
申请人： Saint-Gobain Glass France
发明人： TONDU, Thomas
IPC分类号： G03B21/604 , G03B21/62 , G02B27/01
摘要： L'invention concerne un système de projection comprenant un vitrage (5) pour écran transparent (2), caractérisé par le fait que le vitrage (5) comprend un plan à réflexion diffuse (6) et un premier filtre polarisant (7) situé d'un côté du plan à réflexion diffuse (6), le premier filtre polarisant (7) ayant une première direction de polarisation de telle sorte que le premier filtre polarisant (7) transmet la lumière polarisée selon cette première direction de polarisation.

7. 发明公开

EP3151062A4 VIDEO PROJECTION STRUCTURE, PRODUCTION METHOD FOR VIDEO PROJECTION STRUCTURE, VIDEO PROJECTION METHOD, AND AUTOMOBILE WINDOW 有权转让
公开(公告)号：EP3151062A4
公开(公告)日：2018-04-18
申请号：EP15802728
申请日：2015-06-01
申请人： ASAHI GLASS CO LTD
发明人： TAO YUKIHIRO , SEKIKAWA KENTA , TSUJIMURA HITOSHI , EBATA KENICHI , KAIDA YURIKO
IPC分类号： G03B21/60 , G02B5/02 , G02B5/08 , G03B21/56 , G03B21/602 , G03B21/604 , G03B21/62 , G03B21/625 , G09F19/18
CPC分类号： G03B21/62 , G02B5/02 , G02B5/0236 , G02B5/0284 , G02B5/08 , G03B21/56 , G03B21/60 , G03B21/602 , G03B21/604 , G03B21/625 , G09F19/18
摘要： [Problem] Provide a video projecting window structure achieving high visibility of a projected video without degrading the visibility of a background image that can be seen through the video projecting window structure. [Means for solving Problem] A video projecting structure includes a substrate having a visible light transmittance greater than or equal to 5% and less than or equal to 90%, a reflectivity greater than or equal to 5% and less than or equal to 90%, and a front haze less than or equal to 30.

8. 发明公开

EP4266096A1 WHITEBOARD FILM SYSTEM, WHITEBOARD SYSTEM, AND PEEKING PREVENTION SYSTEM 无效
公开(公告)号：EP4266096A1
公开(公告)日：2023-10-25
申请号：EP23168429.1
申请日：2023-04-18
申请人： Nitto Denko Corporation
发明人： Toyota, Yuji , Yaegashi, Masahiro , Yamamoto, Saori
IPC分类号： G02B5/30 , G03B21/604 , G02B5/02
摘要： A whiteboard film system includes: a whiteboard film; a plurality of light-emitting devices to emit infrared light onto a surface of the whiteboard film at a viewer's side; and a plurality of photodetection devices to receive the infrared light emitted from the plurality of light-emitting devices, the plurality of photodetection devices being provided so as to at least partly oppose the plurality of light-emitting devices. A whiteboard film includes: a diffuse reflection layer to diffuse-reflect visible light; an absorptive polarizing layer having a first transmission axis that is parallel to a first direction; and a reflective polarizing layer being disposed between the diffuse reflection layer and the absorptive polarizing layer and having a second transmission axis that is substantially parallel to the first direction.

9. 发明公开

EP4174575A1 PROJECTION SCREEN CAPABLE OF MAINTAINING POLARIZATION STATE OF PROJECTION LIGHT 审中-实审
公开(公告)号：EP4174575A1
公开(公告)日：2023-05-03
申请号：EP21827986.7
申请日：2021-06-23
申请人： Shenzhen Photonic Crystal Technology Co., Ltd , Shenzhen Time Waying Technology Co., Ltd.
发明人： WANG, Yongjing , ZHENG, Gang , ZHANG, Xiyu , CHOW, Wingyip Kenny
IPC分类号： G03B21/604 , G03B21/60
摘要： The present invention discloses a projection screen capable of maintaining a polarization state of projection light redirected to the viewers. It comprises a plurality of optical projection screen units that comprises at least two layers of optical layered structures, wherein the phase changes of the light passing through each optical layered structure are compensated by other layers. The material of each layer of said optical layered structure is optical medium film and/or metal film. In the present invention, the material and thickness of said optical layered structures are designed to have substantially phase compensation, i.e. the phase shifting of the light caused by one optical layer are canceled by the another layer(s) of said optical layered structure, thus the polarization state of emergent light is preserved with the polarization state of incident light. The polarization maintaining ratio may be 200:1 to 2000:1 or more. A typical polarization maintaining ratio is 1000 :1. The said projection screen can be used in 3D movie theater to reduce the ghosting image of 3D movies caused by polarization decay. The viewers have less dizziness. The 3D movie viewing experience is improved.

10. 发明授权

EP3153895B1 PROJECTION DEVICE AND VEHICLE 有权
公开(公告)号：EP3153895B1
公开(公告)日：2019-09-04
申请号：EP15802721.9
申请日：2015-05-19
申请人： Nitto Denko Corporation
发明人： MATSUDA Shoichi , ASANOI Yoshiaki
IPC分类号： G02B5/30 , G02B27/01 , G03B21/00 , G02B1/08 , G03B21/20 , G03B21/62 , G03B21/604

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