公开(公告)号：US20210173293A1

公开(公告)日：2021-06-10

申请号：US17182701

申请日：2021-02-23

Applicant: HISENSE LASER DISPLAY CO., LTD.

Inventor： Jianjun LI ,  Changming YANG ,  Qiang ZHONG ,  Yun ZHAO

IPC: G03B21/60 ,  G03B21/64

Abstract: 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.

公开(公告)号：US20210325768A1

公开(公告)日：2021-10-21

申请号：US17361652

申请日：2021-06-29

Applicant: Hisense Laser Display Co., Ltd.

Inventor： Boyu ZHOU ,  Changming YANG ,  Xintuan TIAN ,  Wenbang CAI ,  Haijun YIN ,  Jian ZHANG

IPC: G03B21/14 ,  G03B21/20

Abstract: A projector includes a shell, a light source, an optical machine, a projection lens and an auxiliary positioning device. The light source is configured to provide illumination beams. The optical engine is configured to modulate the illumination beams based on received image signals to obtain projection beams. The projection lens is configured to project the projection beams on a projection plane for imaging. The auxiliary positioning device is connected to the shell and is configured to locate a position the projector. The auxiliary positioning device includes a positioning rod which includes a first end and a second end opposite to the first end; the first end of the positioning rod is connected to the shell, and the second end of the positioning rod is configured to abut against a reference object that is at a fixed position relative to the projection plane.

公开(公告)号：US20240361682A1

公开(公告)日：2024-10-31

申请号：US18769231

申请日：2024-07-10

Applicant: HISENSE LASER DISPLAY CO., LTD

Inventor： Youcai CHEN ,  Changming YANG

IPC: G03B21/58 ,  G03B21/56 ,  G03B21/60 ,  G06F1/16 ,  H04M1/02

CPC classification number: G03B21/58 ,  G03B21/56 ,  G03B21/60 ,  G06F1/1601 ,  H04M1/0268

Abstract: A projection screen and a projection apparatus are provided. The projection screen includes a base, a rolling mechanism, a lifting mechanism, an optical curtain and a guide roller. The rolling mechanism is disposed on the base, and the rolling mechanism includes a reel. A first end of the lifting mechanism is fixedly connected to the base. A first end of the optical curtain is fixedly connected to the rolling mechanism, and a second end of the optical curtain is fixedly connected to a second end of the lifting mechanism, the optical curtain includes an optical film, a first end of the optical film is fixedly connected to the reel. The guide roller is disposed at a position where the second end of the lifting mechanism is proximate to the rolling mechanism, and the guide roller is configured to press the optical curtain.

公开(公告)号：US20240339808A1

公开(公告)日：2024-10-10

申请号：US18747461

申请日：2024-06-19

Applicant: Hisense Laser Display Co., Ltd.

Inventor： Xintuan TIAN ,  Changming YANG ,  Yun ZHAO ,  Lei CUI ,  Zhe XING

IPC: H01S5/0239 ,  F21K9/20 ,  F21K9/90 ,  F21Y115/30 ,  G03B21/20 ,  H01S5/02216 ,  H01S5/042 ,  H05K1/18

CPC classification number: H01S5/0239 ,  F21K9/20 ,  F21K9/90 ,  G03B21/2033 ,  G03B21/204 ,  H01S5/02216 ,  H01S5/042 ,  F21Y2115/30 ,  H05K1/183

Abstract: Embodiments of the present application provide a laser light source and a laser projection device. The laser light source includes a laser assembly and a light combination mirror assembly. The laser assembly includes at least a laser, a light emitting surface of the laser has a plurality of light emitting regions, and beams emitted from different ones of the plurality of light emitting regions are in different colors. The light combination mirror assembly includes a plurality of mirrors that are sequentially arranged along an optical transmission path of the laser, with each of the mirrors corresponding to one of the light emitting regions. The light combination mirror assembly is used to converge the beams in different colors emitted from the laser to form a white beam.

公开(公告)号：US20230184392A1

公开(公告)日：2023-06-15

申请号：US18107970

申请日：2023-02-09

Applicant: Hisense Laser Display Co., Ltd.

Inventor： Xintuan TIAN ,  Changming YANG ,  Yun ZHAO ,  Lei CUI ,  Zhe XING

IPC: F21K9/20 ,  G03B21/20 ,  F21K9/90 ,  H01S5/02216 ,  H01S5/042

CPC classification number: F21K9/20 ,  G03B21/204 ,  F21K9/90 ,  H01S5/02216 ,  G03B21/2033 ,  H01S5/042 ,  F21Y2115/30

Abstract: Embodiments of the present application provide a laser light source and a laser projection device. The laser light source includes a laser assembly and a light combination mirror assembly. The laser assembly includes at least a laser, a light emitting surface of the laser has a plurality of light emitting regions, and beams emitted from different ones of the plurality of light emitting regions are in different colors. The light combination mirror assembly includes a plurality of mirrors that are sequentially arranged along an optical transmission path of the laser, with each of the mirrors corresponding to one of the light emitting regions. The light combination mirror assembly is used to converge the beams in different colors emitted from the laser to form a white beam.

公开(公告)号：US20220291578A1

公开(公告)日：2022-09-15

申请号：US17827632

申请日：2022-05-27

Applicant: Hisense Laser Display Co., Ltd

Inventor： Youcai CHEN ,  Changming YANG

IPC: G03B21/58

Abstract: A projection screen and a projection apparatus are provided. The projection screen includes a base, a rolling mechanism, a lifting mechanism, an optical curtain and a tensioning mechanism. The rolling mechanism is disposed on the base. A first end of the lifting mechanism is fixedly connected to the base. A first end of the optical curtain is fixedly connected to the rolling mechanism, and a second end of the optical curtain is fixedly connected to a second end of the lifting mechanism. A tensioning mechanism is fixedly connected to the rolling mechanism and the second end of the lifting mechanism. The lifting mechanism is located between the optical curtain and the tensioning mechanism. The projection apparatus includes the above projection screen and an optical engine.