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41. 发明授权

US11768428B2 Laser source and laser projection apparatus 有权
公开(公告)号：US11768428B2
公开(公告)日：2023-09-26
申请号：US17725868
申请日：2022-04-21
申请人： Hisense Laser Display Co., Ltd
发明人： Wei Li , Wuyue Han , Youliang Tian
IPC分类号： G03B21/20 , G02B26/00
CPC分类号： G03B21/204 , G02B26/008 , G03B21/2066
摘要： The laser source includes a light-emitting assembly, a phosphor wheel, a converging lens group, and a combining component. The light-emitting assembly is configured to emit at least a first laser beam and a second laser beam. The phosphor wheel includes a fluorescence-exciting region and a laser-reflecting region. The converging lens group is disposed between the light-emitting assembly and the phosphor wheel, and is configured to converge the first laser beam and the second laser beam to the phosphor wheel. The first laser beam and the second laser beam are asymmetric with respect to an optical axis of the converging lens group. The combining component is disposed between the light-emitting assembly and the converging lens group. The combining component includes a first reflecting region and a second reflecting region that are arranged at an interval.

42. 发明申请

US20230101471A1 LASER PROJECTION APPARATUS 有权
公开(公告)号：US20230101471A1
公开(公告)日：2023-03-30
申请号：US18071438
申请日：2022-11-29
申请人： Hisense Laser Display Co., Ltd
发明人： Wei Li , Xiaoqiang Gu , Tiantian Tang , Wuyue Han , Youliang Tian
IPC分类号： G03B21/20 , H04N9/31
摘要： A laser projection apparatus includes a laser source, an optical engine and a projection lens. The optical engine includes a light homogenizing component. The laser source includes a light-emitting assembly, a combining component, a first lens, a phosphor wheel and a laser dimming component. The combining component includes a reflecting portion and a transmitting portion. The phosphor wheel includes a first region and a second region. The laser dimming component is located between the light-emitting assembly and the phosphor wheel, and configured to increase Etendue of a laser beam emitted by the light-emitting assembly and change a shape of a beam spot provided by the laser beam on the phosphor wheel, so as to make a beam spot provided by the laser beam and the fluorescent beam at a beam inlet of the light homogenizing component matched with a shape of the beam inlet of the light homogenizing component.

43. 发明授权

US11570411B2 Laser light source and laser projection device 有权
公开(公告)号：US11570411B2
公开(公告)日：2023-01-31
申请号：US16702438
申请日：2019-12-03
申请人： HISENSE LASER DISPLAY CO., LTD.
发明人： Xintuan Tian , Changming Yang , Yun Zhao , Lei Cui , Zhe Xing
IPC分类号： H01S5/02253 , H01S5/40 , H01S5/024 , H01S5/00 , H01S5/02255 , H01S5/02216 , H04N9/31
摘要： Embodiments of the present application provide a laser light source and a laser projection device. The laser light source includes a laser assembly, where the laser assembly includes a laser and a circuit board, the laser includes a substrate and a light emitting chip arranged on the substrate, a lateral surface of the substrate is provided with a plurality of pins extending outwards therefrom, the circuit board is arranged on a side where the pins extend, and the circuit board is electrically connected to the pins. The laser light source of the present application features simple assembling and disassembling, reliable performance and relatively low cost.

44. 发明申请

US20230007218A1 LASER PROJECTION APPARATUS 有权
公开(公告)号：US20230007218A1
公开(公告)日：2023-01-05
申请号：US17943608
申请日：2022-09-13
申请人： Hisense Laser Display Co., Ltd
发明人： Youliang TIAN , Zinan ZHOU , Xin ZHANG , Yunchen LU
IPC分类号： H04N9/31 , G03B21/20
摘要： The laser projection apparatus includes a laser source, an optical engine and a projection lens. The laser source includes a base plate, a plurality of light-emitting components and a reflecting portion. The plurality of light-emitting components include a first light-emitting component and a second light-emitting component. The polarization direction of the laser beam emitted by one of the first light-emitting component and the second light-emitting component is parallel to the base plate, and the polarization direction of the laser beam emitted by another of the first light-emitting component and the second light-emitting component is perpendicular to the base plate. The reflecting prism is configured to change a polarization polarity of one of the laser beam with the polarization direction perpendicular to the base plate or the laser beam with the polarization direction parallel to the base plate.

45. 发明授权

US11467477B2 Laser array, laser source and laser projection device 有权
公开(公告)号：US11467477B2
公开(公告)日：2022-10-11
申请号：US16708406
申请日：2019-12-09
申请人： HISENSE LASER DISPLAY CO., LTD.
发明人： Youliang Tian , Wei Li , Zinan Zhou
IPC分类号： H01S5/40 , G03B21/20 , H04N9/31 , H01S5/02257 , H01S5/00 , G02B19/00
摘要： Embodiments of the present disclosure provide a laser array, a laser source, and a laser projection device, and relate to the field of laser display technologies. The laser array includes a light emitting portion for emitting a laser light beam; a light transmitting portion disposed along a light emitting direction of the light emitting portion for transmitting the laser light beam; where the light transmitting portion includes a first light transmitting region and a second light transmitting region, the first light transmitting region and the second light transmitting region are disposed such that light beams transmitting through the two regions have different polarization directions, which can reduce coherence of the laser light beam emitted from the laser array, thereby facilitating elimination of a speckle.

46. 发明申请

US20220291578A1 PROJECTION SCREEN AND PROJECTION APPARATUS 有权
公开(公告)号：US20220291578A1
公开(公告)日：2022-09-15
申请号：US17827632
申请日：2022-05-27
申请人： Hisense Laser Display Co., Ltd
发明人： Youcai CHEN , Changming YANG
IPC分类号： G03B21/58
摘要： 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.

47. 发明申请

US20220252969A1 LASER SOURCE AND LASER PROJECTION APPARATUS 有权
公开(公告)号：US20220252969A1
公开(公告)日：2022-08-11
申请号：US17725868
申请日：2022-04-21
申请人： Hisense Laser Display Co., Ltd
发明人： Wei LI , Wuyue HAN , Youliang TIAN
IPC分类号： G03B21/20 , G02B26/00
摘要： The laser source includes a light-emitting assembly, a phosphor wheel, a converging lens group, and a combining component. The light-emitting assembly is configured to emit at least a first laser beam and a second laser beam. The phosphor wheel includes a fluorescence-exciting region and a laser-reflecting region. The converging lens group is disposed between the light-emitting assembly and the phosphor wheel, and is configured to converge the first laser beam and the second laser beam to the phosphor wheel. The first laser beam and the second laser beam are asymmetric with respect to an optical axis of the converging lens group. The combining component is disposed between the light-emitting assembly and the converging lens group. The combining component includes a first reflecting region and a second reflecting region that are arranged at an interval.

48. 发明申请

US20220209495A1 LASER DEVICE 有权
公开(公告)号：US20220209495A1
公开(公告)日：2022-06-30
申请号：US17698132
申请日：2022-03-18
申请人： Hisense Laser Display Co., Ltd
发明人： Zinan ZHOU , Youliang TIAN , Guangchao DU , Jihong HAN
IPC分类号： H01S5/02255 , H01S5/40 , H01S5/02326 , H01S5/02 , H01S5/02253 , H01S5/024
摘要： A laser device includes a case, a support substrate, a plurality of laser chips and at least one prism which are located in the case. The plurality of laser chips and the at least one prism are all located on a side of the support substrate away from the case. The support substrate includes a chip mounting region where the plurality of laser chips are located, and a prism arrangement region where the at least one prism is located, the prism arrangement region being recessed toward the case relative to the chip mounting region. Each prism corresponds to one or more laser chips. Each prism is located on a light-emitting side of corresponding one or more laser chips, and each prism is configured to reflect a beam of light emitted by the corresponding one or more laser chips.

49. 发明申请

US20220113614A1 PROJECTION METHOD AND PROJECTION APPARATUS 有权
公开(公告)号：US20220113614A1
公开(公告)日：2022-04-14
申请号：US17556345
申请日：2021-12-20
申请人： Hisense Laser Display Co., Ltd
发明人： Xu CHEN , Jichen XIAO
IPC分类号： G03B21/20 , G03B21/14
摘要： A projection apparatus includes a detector, a laser source control unit and a laser source unit, and the laser source control unit is connected to the detector and the laser source unit. The detector is configured to obtain a detection signal for indicating whether there is an object to be protected in a laser projection region, and send the detection signal. The laser source control unit is also configured to: receive the detection signal, and send an adjustment signal carrying an adjusted projection parameter to the laser source unit when it is determined that there is the object to be protected in the laser projection region of the laser source unit based on the detection signal. The projection parameter indicates a light emission luminance of at least one laser in the laser source unit. The laser source unit is configured to emit a beam in response to the adjustment signal.

50. 发明授权

US11287732B2 Optical illumination system and projection device 有权
公开(公告)号：US11287732B2
公开(公告)日：2022-03-29
申请号：US16803256
申请日：2020-02-27
申请人： Hisense Laser Display Co., Ltd.
发明人： Yong Tian , Lu Chen , Liang Yin , Xiuyan Cao
IPC分类号： G03B21/14 , G03B21/20 , G02B17/08
摘要： Provided are an optical illumination system, and a projection device. In an example, the optical illumination system includes a DMD, a lens assembly and a RTIR assembly. The lens assembly adjusts a light beam. The RIM assembly includes a first plano-convex lens and a wedge prism. The first plano-convex lens includes a plane surface and a convex surface and is configured to refract the light beam adjusted by the lens assembly. The wedge prim includes a first side surface, a second side surface and a third side surface. The plane surface of the first plano-convex lens is glued with the first side surface of the wedge prism. The wedge prism is configured to receive and refract the light beam refracted by the first plano-convex lens through the first side surface, and the light beam refracted by the first side surface is transmitted through the second side surface. The DMD is at a light emitting side of the second side surface of the wedge prism, and configured to receive and reflect the light beam from the second side surface of the wedge prism. The reflected light beam is incident to the first side surface of the wedge prism through the second side surface of the wedge prism for total internal reflection then transmitted through the third side surface.

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