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1. 发明授权

US11635678B2 Fresnel projection screen and projection system 有权
公开(公告)号：US11635678B2
公开(公告)日：2023-04-25
申请号：US17551812
申请日：2021-12-15
申请人： HISENSE LASER DISPLAY CO., LTD.
发明人： Wei Xiao , Chao Wang , Fei Zhao , Qiang Zhong , Xiaoping Li
IPC分类号： G03B21/60 , G03B21/602
摘要： A Fresnel projection screen includes: a Fresnel layer; a first micro-structure layer disposed at a light incident side of the Fresnel layer, the first micro-structure layer including a plurality of micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; a second micro-structure layer disposed on a surface of the first micro-structure layer, the second micro-structure layer including a plurality of second micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; and a reflective layer disposed on a side of the Fresnel layer away from the first micro-structure layer.

2. 发明申请

US20230019840A1 Modular Projection Systems And Methods Of Using Said Systems 有权
公开(公告)号：US20230019840A1
公开(公告)日：2023-01-19
申请号：US17940439
申请日：2022-09-08
申请人： FIVE-STAR AUDIOVISUAL, INC.
发明人： Robert Tippin
IPC分类号： G03B21/10 , G03B21/16 , G03B21/60
摘要： A projection system can include a projector, a screen, a spine, a base, a projector shroud, and a shelf. In some embodiments the spine is made of steel piping. In some embodiments, the spine is hollow and can accommodate a first cable. In some embodiments the screen is an ALR screen. In some embodiments, the system utilizes an ultra-short throw projector lens. In some embodiments, the base is a steel plate. In some embodiments, the projector system includes a counterbalance. In some embodiments, the projector shroud and/or shelf is/are configured to increase ventilation and/or act as heat sink(s). In some embodiments, the projection system includes a remote-control extender.

3. 发明授权

US11487195B2 Dome screen, dome screen projection apparatus, and method for fabricating the same 有权
公开(公告)号：US11487195B2
公开(公告)日：2022-11-01
申请号：US17049049
申请日：2018-04-26
申请人： WONDER VISION TECHNO LABORATORY CO., LTD.
发明人： Goro Tamura
IPC分类号： G03B21/60 , G03B21/58
摘要： A dome screen projection apparatus has screen members made of synthetic resin and detachably joined together to form a dome screen having a curved configuration. Frame members are detachably connected together to form a frame, and suspension members suspend the dome screen in a suspended condition from the frame. The frame members include frame column members disposed on the outside of the dome screen, one at each side of the dome screen and one at the rear of the dome screen, a frame beam member supported at opposite ends at upper portions of the two frame column members at each side of the dome screen and extending above the top front portion of the dome screen, and a frame arc-shaped beam member supported at upper portions of the frame column members. A projector is supported by the frame and projects an image on an inner face of the dome screen while the dome is in the suspended condition. The dome screen may have a generally hemispherical shape with an open front that enables viewers located in front of the dome screen to view an image projected on the inner face of the dome screen. The dome screen projection apparatus can be easily assembled and disassembled on site and moved to another site for assembly and disassembly.

4. 发明申请

US20220303407A1 PROJECTION SYSTEM AND IMAGE PROJECTION METHOD 有权
公开(公告)号：US20220303407A1
公开(公告)日：2022-09-22
申请号：US17693437
申请日：2022-03-14
申请人： Coretronic Corporation
发明人： Chien-Chun Peng , Hsun-Cheng Tu , Chi-Wei Lin , Chun-Lin Chien
IPC分类号： H04N1/00 , G06T7/70 , G06T5/50 , G06T5/00 , G03B21/60
摘要： A projection system, including a projection target, a projection device, an image capturing device, and a processor circuit, is provided. The projection target includes a reflective surface and an anti-reflective film disposed on the reflective surface. The anti-reflective film defines a projection range. The image capturing device captures a first captured image containing the projection target. The first captured image includes an image of the anti-reflective film. The processor circuit determines a position and a shape of the anti-reflective film in the first captured image according to the first captured image. The projection device projects a projection image on the projection target. The projection device adjusts the projection image according to the position and the shape of the anti-reflective film, and correspondingly adjusts the projection image to the projection range. In addition, an image projection method is also provided.

5. 发明授权

US11442354B2 Projection screen and projection system 有权
公开(公告)号：US11442354B2
公开(公告)日：2022-09-13
申请号：US17182701
申请日：2021-02-23
申请人： HISENSE LASER DISPLAY CO., LTD.
发明人： Jianjun Li , Changming Yang , Qiang Zhong , Yun Zhao
IPC分类号： G03B21/60 , G03B21/56 , G03B21/64
摘要： A projection screen includes a screen board, a connecting cloth, a screen frame, and at least one connecting member. The screen board has a first surface and a second surface opposite, the screen board has a light receiving region and an edge region surrounding the light receiving region. At least one edge of the connecting cloth protrudes from a corresponding edge of the screen board, and at least a portion of the second surface of the screen board located in the edge region is connected to the connecting cloth. The screen frame has a hollow structure, an orthographic projection of the screen board on a plane parallel to the first surface is located within an outer border of an orthographic projection of the screen frame on the plane. The at least one connecting member connects at least one edge of the connecting cloth to the screen frame.

6. 发明授权

US11425344B2 Optical device with phase modulation layer and phase compensating layer 有权
公开(公告)号：US11425344B2
公开(公告)日：2022-08-23
申请号：US15959229
申请日：2018-04-22
申请人： Shenzhen Photonic Crystal CO. LTD
发明人： Yongjing Wang
IPC分类号： H04N9/31 , G02B26/06 , H04N13/302 , H04N13/393 , H04N13/337 , H04N13/363 , G03B21/60 , G02B30/50 , G02B5/124 , G03B21/604 , G02B30/25
摘要： An optical device is disclosed. The optical device has 1) a phase modulation layer, 2) a partially reflective layer, and 3) a phase compensation layer. When incident lights pass through the phase modulation layer, the partially reflective layer reflects and scatters the light back to the viewers. The direction and profile of the reflected light are determined by the phase modulation profile. When light passes through both the phase modulation layer and the phase compensation layer, its phase modulation is compensated to a substantially small level. Therefore, the transparent light passes through the optical device just like passing through a parallel transparent substrate without any disturbance.

7. 发明授权

US11385474B2 Visual effect system including perspective-correct autostereoscopic retroreflective projection 有权
公开(公告)号：US11385474B2
公开(公告)日：2022-07-12
申请号：US16836549
申请日：2020-03-31
申请人： Disney Enterprises, Inc.
发明人： Quinn Y. J. Smithwick , Dawson McLeod Dill , Michael John Ilardi , Elisabeth C. Papadopoulos , Robert J. Bristow , Colleen L. Bristow-Campbell , Chad Michael Smith
IPC分类号： G02B30/33 , G03B21/60 , G02B27/00 , G02B30/24 , G03B21/20 , G02B27/28 , G03B21/00 , G02B27/30 , G02B30/25
摘要： A system creating an autostereoscopic augmented reality (AR), virtual reality (VR), or other visual display experience involving 3D images, presented to a viewer without glasses or other head-gear. The system includes a projection screen, which includes a reflective surface formed using retroreflective material. The system includes a projection assembly and a beamsplitter, which is disposed between an outlet of the projection assembly and the projection screen. The system includes a physical scenic space facing a lower side of the beamsplitter and a viewing space facing an upper side of the beamsplitter. A controller operates the projector assembly to project left and right eye images toward the projection screen. The left and right eye images are then directed to left and right eye positions so a viewer with eyes positioned at the left and right eye positions perceives a virtual object concurrently with light from the physical scenic space.

8. 发明申请

US20220214543A1 HEAD-UP DISPLAY DEVICE AND MOTOR VEHICLE 有权
公开(公告)号：US20220214543A1
公开(公告)日：2022-07-07
申请号：US17611716
申请日：2020-05-15
申请人： FUTURUS TECHNOLOGY CO., LTD.
发明人： Junfeng XU , Huijun WU , Tao FANG
IPC分类号： G02B27/01 , G02B27/18 , G03B21/60 , B60K35/00
摘要： Disclosed are a head-up display device and a motor vehicle. The head-up display device includes an image source, a transflective device and a light control device. The image source is configured to emit light for forming an image. The transflective device is configured to reflect light that is incident on the transflective device and allow the light that is incident on the transflective device to be transmitted. The light control device includes a retroreflection element and a dispersion element arranged above the retroreflection element; the retroreflection element is configured to reflect the light that is incident on the retroreflection element in a direction opposite the incident direction of the light that is incident on the retroreflection element; and the dispersion element is configured to diffuse the light that is incident on the dispersion element.

9. 发明授权

US11307334B2 Deep view display screen 有权
公开(公告)号：US11307334B2
公开(公告)日：2022-04-19
申请号：US17263123
申请日：2019-07-26
申请人： InnerScene Limited
发明人： Sean Flynn
IPC分类号： G03B21/28 , G02B5/04 , G03B21/00 , G03B21/60 , G03B35/24 , G02B30/26
摘要： The present invention describes an image display apparatus for directing an image towards an observer. The apparatus comprises a source of image point rays; a collimating device configured to collimate image point rays to produce collimated image rays; and, a prism sheet configured to receive the collimated image rays. The prism sheet comprises an array of micro-prisms, each micro-prism having two reflective facets arranged such that each collimated image ray is reflected off one facet and then an adjacent facet. Reflection from the second facet reorients the collimated image rays towards an image observation zone. The collimated image rays from an upper portion of the prism sheet converge with collimated image rays from a lower portion of the prism sheet within the image observation zone. The present invention also describes a method for directing an image towards an observer.

10. 发明授权

US11256166B2 Structure of short-throw ambient light rejecting screen 有权
公开(公告)号：US11256166B2
公开(公告)日：2022-02-22
申请号：US16929549
申请日：2020-07-15
申请人： PROBRIGHT TECHNOLOGY INC.
发明人： Chia-Pin Li , Mao-Kuei Wang , Shih-Min Fu , Yao-Nan Hsu
IPC分类号： G03B21/60 , G03B21/58 , G03B21/56 , G03B21/625 , G03B21/62
摘要： The present invention provides a structure of short-throw ambient light rejecting screen, which comprises a base and an optical structure device disposed on the base. The optical structure device includes a plurality of optical structure parts. Each of the plurality of optical structure parts includes a first side, a second side, and a base part. The first side and the base form a first angle for reflecting a light source. The second side and the base form a second angle for absorbing a light source. The base part is a length on the base confined by first side and the second side. The first angle is 20˜40 degrees. The second angle is 70˜90 degrees. The length on the base part is 250˜350 um. By adjusting the first angle, the second angle, and the length on the base part of each optical structure part, the height of the optical structure part can be maintained constant. In addition, the differences between the incident projection angles can be reduced as well. By improving the process yield, the appearance of the scrolled screen can form a neat cylinder.

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