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公开(公告)号：US20250053074A1
公开(公告)日：2025-02-13
申请号：US18779652
申请日：2024-07-22
Applicant: Kazuhiro FUJITA , Naoki NAKAMURA , Noritada OHI , Hiroki TANAKA , Yoshio KUBO , Toshiharu HACHISUKA , Kasumi NAKAMURA , Mayu BANNO
Inventor： Kazuhiro FUJITA , Naoki NAKAMURA , Noritada OHI , Hiroki TANAKA , Yoshio KUBO , Toshiharu HACHISUKA , Kasumi NAKAMURA , Mayu BANNO
IPC: G03B21/20
Abstract: A light source device includes a first light source section including one or more first light emitters to emit first light; a second light source section including one or more second light emitters to emit second light; a light-transmissive member having a central axis to transmit the first light and the second light; and circuitry to individually drive the one or more first light emitters and the one or more second light emitters to reduce illuminance of light emitted from the light-transmissive member to below a predetermined illuminance level. The first light source section emits the first light that enters the light-transmissive member at a positive angle relative to the central axis in a view in a direction orthogonal to the central axis, and the second light source section emits the second light that enters the light-transmissive member at a negative angle relative to the central axis in the view.
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公开(公告)号：US20250044673A1
公开(公告)日：2025-02-06
申请号：US18774905
申请日：2024-07-16
Applicant: Coretronic Corporation
Inventor： Shih-Chen Chiou
Abstract: A wavelength conversion element is adapted to rotate around a rotation axis. The wavelength conversion element includes a rotating member and a wavelength conversion material. The wavelength conversion material is arranged on the rotating member. The wavelength conversion material is configured to convert a laser beam into a conversion beam. The rotating member is configured to drive the wavelength conversion material to rotate around the rotation axis. The wavelength conversion element has a light-transmitting area. The light-transmitting area is surrounded by the rotating member. The light-transmitting area is configured to allow at least one of the laser beam and the conversion beam to pass through.
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公开(公告)号：US12216392B2
公开(公告)日：2025-02-04
申请号：US18406505
申请日：2024-01-08
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Dzhakhangir V. Khaydarov , Douglas J. Gorny
Abstract: A projector includes a light source, an integrating rod, an image panel, a beam shaper, and an actuator mechanically connected to the beam shaper. The image panel is configured to display an image at a displayed aspect ratio. The beam shaper includes multiple prisms shaped and oriented such that when the beam shaper intersects an optical path of the illumination between the integrating rod and the image panel, the illumination transmitted by the beam shaper is collinear with the illumination incident on the beam shaper. The actuator is configured to switch the projector between (i) a first configuration, in which the beam shaper does not change an aspect ratio of the illumination, and (ii) a second configuration, in which the beam shaper intersects the optical path between the integrating rod and the image panel and changes the aspect ratio of the illumination.
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公开(公告)号：US20250036015A1
公开(公告)日：2025-01-30
申请号：US18519161
申请日：2023-11-27
Applicant: DELTA ELECTRONICS, INC.
Inventor： Ming-Yo HSU
IPC: G03B21/20
Abstract: A laser light source module includes a laser chip, a wedge structure, a plano-convex lens, and an optical fiber. The laser chip is configured to emit a first light beam and a second light beam. The wedge structure is configured to refract the first light beam and the second light beam into a third light beam and make the first light beam and the second light beam overlap each other. The wedge structure is located between the laser chip and the plano-convex lens. The plano-convex lens is located between the wedge structure and the optical fiber.
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公开(公告)号：US12210276B2
公开(公告)日：2025-01-28
申请号：US17336076
申请日：2021-06-01
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Yi Li
Abstract: Provided is a light-source system, comprising excitation light source, first supplementary light source, first light-guiding assembly, wavelength conversion apparatus, and second light-guiding assembly. The excitation light source is for emitting excitation light; the first supplementary light source is for emitting first supplementary light. The first light-guiding assembly is for guiding the excitation light to the wavelength conversion apparatus. The wavelength conversion apparatus is for converting excitation light to excited light and irradiate onto the first light-guiding assembly. The first light-guiding assembly is for guiding excited light to irradiate onto the second light-guiding assembly. At least some components of the second light-guiding assembly are arranged on the light path from the first light-guiding assembly. The second light-guiding assembly is for guiding the excited light and/or the first supplementary light, such that the first supplementary light and at least part of the excited light are output from same emission channel.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12204165B2
公开(公告)日：2025-01-21
申请号：US17522499
申请日：2021-11-09
Applicant: FUJIFILM Corporation
Inventor： Masaru Amano , Hironobu Kayano
Abstract: A projection lens is a projection lens that emits incident light through a plurality of lenses, and includes a first lens that is disposed to be closest to an emission side, a second lens which is adjacent to the first lens and of which a diameter is smaller than a diameter of the first lens, and a frame that includes a first surface and is positioned outside the second lens in a radial direction. The first surface faces the first lens, the first surface has a light reflection-reducing structure, and a value of G1/G2 is 1.7 or more in a case where a diameter of the first lens is denoted by G1 and a diameter of the second lens is denoted by G2.
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公开(公告)号：US20250023322A1
公开(公告)日：2025-01-16
申请号：US18902459
申请日：2024-09-30
Applicant: HISENSE LASER DISPLAY CO., LTD
Inventor： Xianglai PANG , Longfei SHI , Yali LIU
IPC: H01S5/023 , G03B21/20 , H01S5/02216 , H01S5/02345 , H01S5/40 , H05K1/14
Abstract: A laser source and a laser projection apparatus are provided. The laser source includes a laser assembly. The laser assembly includes a mounting substrate, a light-emitting group, and a conductive connecting portion. The mounting substrate is a first printed circuit board and includes a first surface, a first region, and a second region. The first region and the second region are discontinuously distributed, and the first region is connected with the second region through an internal wiring of the mounting substrate. The light-emitting group is electrically connected with the first region. A first end of the conductive connecting portion is connected with the second region, and a second end of the conductive connecting portion is configured to be electrically connected with a second printed circuit board, so as to electrically connect the light-emitting group with the second printed circuit board.
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公开(公告)号：US20250023319A1
公开(公告)日：2025-01-16
申请号：US18902481
申请日：2024-09-30
Applicant: HISENSE LASER DISPLAY CO., LTD.
Inventor： Zinan Zhou , Yao LU , Zhaoshi GUO , Jianjun LI
Abstract: A laser device and a laser projection equipment are provided. The laser device includes: at least one frame, each of the at least one frame including a substrate and an annular sidewall; a sealing light-transmitting layer, the substrate, the annular sidewall and the sealing light-transmitting layer forming a sealed accommodating space; a plurality of light emitting chips; at least one prism, configured to receive a laser beam exiting from a corresponding light emitting chip and to reflect the laser beam toward a light emitting direction of the laser device; and, a phase retarder, disposed within the accommodating space and parallel to the substrate, wherein a beam of at least a part of the light emitting chips passes through the phase retarder to change a polarization direction of a laser light before being transmit to the sealing light-transmitting layer
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公开(公告)号：US20250020987A1
公开(公告)日：2025-01-16
申请号：US18712391
申请日：2022-10-18
Applicant: SONY GROUP CORPORATION
Inventor： NARIYASU SUGAWARA , AKIKO TORIYAMA , SHINICHIRO TAJIRI
Abstract: An optical phase modulation system of the present disclosure includes an illumination light emitter, a phase modulation unit, and a synchronization control unit. The illumination light emitter performs polarization control on a polarization direction of light emitted as illumination light into a first polarization direction and a second polarization direction different from the first polarization direction, and emits light having the first polarization direction and light having the second polarization direction at different timing and in different directions from each other. The phase modulation unit includes a first region that performs phase modulation on the light having the first polarization direction from the illumination light emitter, and a second region that performs phase modulation on the light having the second polarization direction from the illumination light emitter. The synchronization control unit causes timing at which the light having the first polarization direction and the light having the second polarization direction are emitted from the illumination light emitter to be synchronized with timing of phase modulation in the first region and the second region of the phase modulation unit.
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公开(公告)号：US12197114B2
公开(公告)日：2025-01-14
申请号：US17518460
申请日：2021-11-03
Applicant: CASIO COMPUTER CO., LTD.
Inventor： Tomoyuki Ueda , Tetsuro Narikawa
Abstract: A projector is configured to, in response to a temperature detection value acquired from one or more temperature detection sensors that detect a temperature of a light source unit reaching a set value, reduce a current ratio flowing through the light source unit; and in response to the reduced current ratio falling below a first set ratio, execute a first process.
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