-
公开(公告)号：US20240361513A1
公开(公告)日：2024-10-31
申请号：US18770633
申请日：2024-07-11
发明人： Lingbing KONG , Qinming CAI
IPC分类号： F21V8/00
CPC分类号： G02B6/0083 , G02B6/0036
摘要： An electronic device is provided, including a housing, a circuit board, an infrared generator, and a light guide member. The housing is provided with a light-transmitting hole and an accommodating cavity for accommodating the circuit board, the infrared generator, and the light guide member. The infrared generator is mounted on the circuit board. The light guide member includes a light incident surface and a light exit surface. The light guide member is at least partially arranged in the light-transmitting hole. The light incident surface and the light exit surface are arranged in a staggered manner. The light incident surface is arranged corresponding to the infrared generator, and the light incident surface is an aspherical curved surface. Infrared light emitted by the infrared generator emits outward through the light guide member.
-
公开(公告)号：US20240361510A1
公开(公告)日：2024-10-31
申请号：US18765728
申请日：2024-07-08
申请人： JAPAN DISPLAY INC.
发明人： Tenfu NAKAMURA , Kentaro OKUYAMA , Kojiro IKEDA
IPC分类号： F21V8/00 , G02F1/1362 , G02F1/1334 , G02F1/1343 , G02F1/1368
CPC分类号： G02B6/005 , G02F1/136286 , G02F1/13347 , G02F1/134336 , G02F1/1368
摘要： According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate, a liquid crystal layer, a third transparent substrate having a first side surface, a second side surface, and an inner surface, a transparent layer arranged on the inner surface, and light emitting elements. The transparent layer includes a band-shaped portion extending from the first side surface toward the second side surface and a frame-shaped portion formed in a frame shape surrounding the band-shaped portion. The band-shaped portion is separated from the frame-shaped portion. A width of the band-shaped portion on a first side surface side is larger than a width of the band-shaped portion on a second side surface side.
-
公开(公告)号：US12130461B2
公开(公告)日：2024-10-29
申请号：US17427265
申请日：2020-01-31
申请人： Carl Zeiss Jena GmbH
发明人： Roman Kleindienst , Christoph Erler , Petr Vojtisek , Marc Junghans , Daniel Thomae , Mirko Riethmueller , Matthias Burkhardt , Alexandre Gatto , Andreas Luetz
CPC分类号： G02B6/0015 , G02B6/0018 , G02B6/0033 , G02B6/0035 , G02B27/0103 , G02B27/4205 , G02B21/361 , G02B2027/0138 , G02B2027/0174 , G02B27/18
摘要： A waveguide for a detector system includes a transparent main body with a partially transparent incoupling region and a decoupling region that is spaced apart therefrom in a first direction. The incoupling region includes a diffractive structure which deflects only part of radiation coming from an object to be detected and impinging on the front face such that the deflected part propagates as coupled-in radiation in the main body by reflections up to the decoupling region and impinges on the decoupling region. The decoupling region deflects at least part of the coupled-in radiation impinging thereon such that the deflected part exits the main body via the front face or rear face in order to impinge on the detector system. The extent of the incoupling region in a second direction transverse to the first direction is greater than the extent of the decoupling region in the second direction.
-
公开(公告)号：US12130460B2
公开(公告)日：2024-10-29
申请号：US18033952
申请日：2021-10-29
申请人： KYOCERA Corporation
发明人： Noritaka Niino , Eri Takeuchi , Tomoyoshi Akashi
CPC分类号： G02B6/0008 , F21V9/32 , G02B6/0006
摘要： A wavelength converter emits light in response to laser light emitted from a light emitter. The wavelength converter includes a surface including a first area to directly receive the laser light from the light emitter, and a second area located on a member. The light emitted from the wavelength converter includes a first component emitted directly from the wavelength converter and input directly into the light receiver, and a second component emitted from the second area, reflected from the member, and input into the light receiver. The member includes a surface including a third area to receive the second component. The third area has a reflectance for the light greater than a reflectance of the wavelength converter for the light in the second area.
-
公开(公告)号：US20240353711A1
公开(公告)日：2024-10-24
申请号：US18759325
申请日：2024-06-28
申请人： LG ELECTRONICS INC.
发明人： Inkeun RYU , Sangdon PARK , Moungyoub LEE , Kyoungmok KIM , Yunjoo KIM , Jonghyun BYEON
IPC分类号： G02F1/13357 , F21V8/00 , G02F1/1333
CPC分类号： G02F1/133608 , G02B6/0021 , G02B6/0036 , G02B6/0038 , G02F1/133317 , G02F1/133328 , G02F2201/46 , G02F2202/28
摘要： A display device includes a display panel including a front substrate and a back substrate, a plurality of brackets attached to a non-display area of a back surface of the back substrate using an adhesive, and a backlight unit positioned in the rear of the display panel. The backlight unit includes a frame including at least one protrusion, a light guide plate disposed between the frame and the display panel, the light guide plate including at least one groove or hole corresponding to the at least one protrusion of the frame, an optical layer disposed between the light guide plate and the display panel, and a light source disposed on the side of the light guide plate.
-
公开(公告)号：US20240353610A1
公开(公告)日：2024-10-24
申请号：US18530150
申请日：2023-12-05
发明人： Jinrong ZHENG , Haijiang YUAN
IPC分类号： F21V8/00
CPC分类号： G02B6/0066 , G02B6/0076
摘要： Disclosed is a backlight module and a display device. The backlight module includes a light guide plate assembly including: a first light guide plate and a second light guide plate disposed back to back in a first direction; an adjustment member disposed on a side of the light guide plate assembly in a second direction; a light emitter connected to the adjustment member; and a light intensifier connected to the adjustment member and disposed between the light emitter and the light guide plate assembly in the second direction. The backlight module and the display device can have a good display effect, reduce space occupancy, and save costs while switching between single-sided display and double-sided display.
-
公开(公告)号：US12124074B1
公开(公告)日：2024-10-22
申请号：US18131127
申请日：2023-04-05
申请人： Tiejun Wang
发明人： Tiejun Wang
IPC分类号： F21V8/00
CPC分类号： G02B6/0065 , G02B6/004
摘要： A light guiding plate (LGP) made of transparent material. The LGP has a side surface configured to enable light to enter the LGP. A top surface of the LGP has light-scattering imperfections and is configured to reflect light in the LGP downward. A bottom surface of the LGP is concave and configured to enable light in the LGP to leave the LGP.
-
公开(公告)号：US12124037B2
公开(公告)日：2024-10-22
申请号：US17794966
申请日：2021-05-24
申请人： Lumus Ltd.
发明人： Tsion Eisenfeld
CPC分类号： G02B27/0172 , G02B6/0015 , G02B6/0035 , G02B27/0081
摘要： An optical system for directing image illumination injected at a coupling-in region towards a user for viewing includes a light-guide optical element (LOE) (12) with a pair of parallel major external surfaces (24). A first region (16) of the LOE contains a first set of partially-reflecting surfaces (17) oriented to redirect image illumination propagating within the LOE towards a second region of the LOE (18), which contains a second set of partially-reflecting surfaces (19) oriented to couple out the image illumination towards the user. The first set of partially-reflecting surfaces (17) extend across at least 95 percent of a thickness of the LOE, while the second set of partially-reflecting surfaces (19) are contained within a subsection of the thickness spanning less than 95 percent of the thickness, so that the second set of partially-reflecting surfaces (19) are excluded from one or both surface layers of the second region (18).
-
公开(公告)号：US12124033B2
公开(公告)日：2024-10-22
申请号：US17607196
申请日：2020-10-06
申请人： LG Chem, Ltd.
发明人： Eun Ho Kho , Jae Jin Kim , Bu Gon Shin , Dae Han Seo , Min Soo Song
CPC分类号： G02B27/0103 , G02B5/32 , G02B6/0023 , G02B6/005 , G02B27/0101
摘要： A holographic waveguide includes a light guide unit configured to guide lights; a first holographic optical element disposed on one surface or the other surface of the light guide unit and configured to diffract an input light; a second holographic optical element disposed on any one of the one surface and the other surface, and configured to receive a light diffracted by the first holographic optical element and to direct a part of the received light to the other one of the one surface and the other surface; a third holographic optical element disposed on a surface, and configured to receive diffracted lights by the second holographic optical element and to guide the lights; and a fourth holographic optical element configured to receive a diffracted light by the third holographic optical element, and to allow the light to be output from the light guide unit.
-
公开(公告)号：US20240345388A1
公开(公告)日：2024-10-17
申请号：US18134202
申请日：2023-04-13
CPC分类号： G02B27/0093 , G02B6/0026 , G02B6/005 , G06F3/013 , G06T7/73 , H04N23/56 , G06T2207/30201
摘要： A waveguide system in a lens assembly of a head mounted device may be used to support eye tracking operations. The waveguide system includes a waveguide, an input coupler, and an output coupler. The input coupler is disposed in the waveguide, and the input coupler is configured to in-couple light into the waveguide. The output coupler is disposed in the waveguide and is configured to out-couple the light from the waveguide. The output coupler includes at least one trapezoidal portion to condition the depth of field for the waveguide system. The output coupler may have two (dual) trapezoidal portions that are similar to the shape of a bowtie or hourglass to configure the depth of field of the waveguide system along a particular direction (e.g., the y-axis). The bowtie shape of the output coupler provides uniform in-coupling of light from the input coupler along a range of angles.
-
-
-
-
-
-
-
-
-
搜索结果
26847 条记录 (耗时 0.035 秒)
