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公开(公告)号：US20240219794A1
公开(公告)日：2024-07-04
申请号：US18603670
申请日：2024-03-13
发明人： Joshua Lentz
IPC分类号： G02F1/139 , G02B5/00 , G02B5/18 , G02B27/42 , G02F1/13 , G02F1/13363 , G02F1/1337 , G02F1/1343 , G02F1/1347 , G02F1/29 , H04N9/31
CPC分类号： G02F1/139 , G02B5/18 , G02F1/1313 , G02F1/13363 , G02F1/133711 , G02F1/133788 , G02F1/13439 , G02F1/13471 , G02F1/29 , G02F1/292 , H04N9/3164 , H04N9/3167 , G02B5/003 , G02B27/4233 , G02F1/133631 , G02F1/133757 , G02F2203/04 , G02F2203/07 , G02F2203/22 , G02F2203/24 , G02F2203/48
摘要： A projector includes a beam homogenizer receiving light from a light source and creating a predetermined illumination, and a spatial light modulator including grating stages to receive the predetermined illumination. Each grating stage may include a plurality of pixels where corresponding pixels in the grating stages are aligned with one another. Each of the pixels may include a liquid crystal layer disposed between two substrates, where a pixel is switchable by applying a voltage thereto, with a grating period of the pixel selected such that, when the voltage is applied to the pixel and light is passed therethrough, optical energy from the light in plus and minus first orders is deflected toward sides of the pixel and optical energy from a zero order of the light is allowed to pass through the pixel, with a polarization state of the light maintained through the pixel.
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公开(公告)号：US20240319541A1
公开(公告)日：2024-09-26
申请号：US18731360
申请日：2024-06-03
发明人： Jianxiong Li , Yuanhui Wen , Yunfei Wu , Liangjia Zong
IPC分类号： G02F1/1337 , G02F1/13363
CPC分类号： G02F1/133753 , G02F1/133631 , G02F1/133769 , G02F1/133776
摘要： A polarization-insensitive device includes a liquid crystal layer and an adjustment layer that are stacked. The liquid crystal layer is configured to perform, under action of an electric field, first phase adjustment on a passing light component in a first polarization direction. The adjustment layer is configured to obtain a first light beam and a second light beam based on the incident light component in the first polarization direction that passes through the liquid crystal layer, second phase adjustment and polarization direction adjustment are performed on the first light beam at the adjustment layer. A polarization direction of the first light beam is perpendicular to a polarization direction of the first light beam obtained before the polarization direction adjustment; and the first light beam and the second light beam have different propagation directions after passing through the liquid crystal layer.
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3.发明授权公开(公告)号：US12055890B2
公开(公告)日：2024-08-06
申请号：US17844404
申请日：2022-06-20
IPC分类号： G03H1/08 , G02B5/32 , G02B27/12 , G03H1/02 , G02F1/1335 , G02F1/13363
CPC分类号： G03H1/08 , G02B5/32 , G02B27/126 , G02F1/133538 , G02F1/13355 , G02F1/133631 , G03H1/0248 , G03H2001/0858 , G03H2210/10 , G03H2223/13 , G03H2223/18 , G03H2223/19 , G03H2223/20 , G03H2225/34
摘要： A three-dimensional light modulator, of which the pixels are combined to form modulation elements. Each modulation element can be coded with a preset discrete value such that three-dimensionally arranged object points can be holographically reconstructed. The light modulator is characterized in that assigned to the pixels of the modulator are beam splitters or beam combiners which, for each modulation element, combine the light wave parts modulated by the pixels by means of refraction or diffraction on the output side to form a common light beam which exits the modulation element in a set propagation direction.
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公开(公告)号：US20230258940A1
公开(公告)日：2023-08-17
申请号：US18303459
申请日：2023-04-19
申请人： Magic Leap, Inc.
IPC分类号： G02B27/01 , G02B27/28 , G02F1/13363 , G02F1/1337 , G02F1/01 , G02F1/1335 , G02F1/1343 , G02F1/139 , G02B25/00
CPC分类号： G02B27/0172 , G02B27/281 , G02F1/133638 , G02F1/133761 , G02F1/133631 , G02F1/0136 , G02F1/133531 , G02F1/134309 , G02F1/133749 , G02F1/1393 , G02B25/001 , G02F2413/10 , G02B2027/0178 , G02F2413/01 , G02B2027/011
摘要： A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.
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公开(公告)号：US11966138B2
公开(公告)日：2024-04-23
申请号：US17569247
申请日：2022-01-05
发明人： Joshua Lentz
IPC分类号： G02F1/139 , G02B5/00 , G02B5/18 , G02B27/42 , G02F1/13 , G02F1/13363 , G02F1/1337 , G02F1/1343 , G02F1/1347 , G02F1/29 , H04N9/31
CPC分类号： G02F1/139 , G02B5/18 , G02F1/1313 , G02F1/13363 , G02F1/133711 , G02F1/133788 , G02F1/13439 , G02F1/13471 , G02F1/29 , G02F1/292 , H04N9/3164 , H04N9/3167 , G02B5/003 , G02B27/4233 , G02F1/133631 , G02F1/133757 , G02F2203/04 , G02F2203/07 , G02F2203/22 , G02F2203/24 , G02F2203/48
摘要： A projector includes a beam homogenizer receiving light from a light source and creating a predetermined illumination, and a spatial light modulator including grating stages to receive the predetermined illumination. Each grating stage may include a plurality of pixels where corresponding pixels in the grating stages are aligned with one another. Each of the pixels may include a liquid crystal layer disposed between two substrates, where a pixel is switchable by applying a voltage thereto, with a grating period of the pixel selected such that, when the voltage is applied to the pixel and light is passed therethrough, optical energy from the light in plus and minus first orders is deflected toward sides of the pixel and optical energy from a zero order of the light is allowed to pass through the pixel, with a polarization state of the light maintained through the pixel.
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公开(公告)号：US11899231B2
公开(公告)日：2024-02-13
申请号：US17095055
申请日：2020-11-11
发明人： Jung-Hun Lee , Sungun Park , Sanghyeok Kim , Jungsun Kim , Jihwa Lee
IPC分类号： G02B5/30 , G02B1/14 , G02F1/13363 , G02F1/1335 , G02F1/1333 , G06F1/16
CPC分类号： G02B5/3016 , G02B1/14 , G02F1/133331 , G02F1/133531 , G02F1/133631 , G02F1/133633 , G02F1/133638 , G02F2201/503 , G02F2202/28 , G06F1/1686
摘要： A display device includes a display panel, a polarizing plate disposed above the display panel, where the polarizing plate includes a linear polarizing layer and a retardation layer, a window member disposed above the polarizing plate, where the window includes a window and a protective layer disposed above the window, the protective layer has a retardation of about 100 nm or less or about 5000 nm or greater, an optical member disposed below the display panel, a support member disposed below the optical member, where a through-hole is defined through the support member, and an electronic module disposed to correspond to the through-hole.
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公开(公告)号：US11686974B2
公开(公告)日：2023-06-27
申请号：US16702162
申请日：2019-12-03
发明人： Haijing Chen
IPC分类号： G02F1/13363
CPC分类号： G02F1/13363 , G02F1/133631
摘要： A display panel and a display apparatus are provided. The display panel includes a display substrate and a birefringence layer disposed on a display surface of the display substrate. The birefringence layer includes a first region; the first region is disposed at least in the display region; a plurality of repeating units are sequentially disposed in the first region along a first direction parallel to the display surface of the display substrate, and one repeating unit includes at least two refractive regions that are sequentially arranged along the first direction to form. Refractive indexes of the at least two refractive regions are different from each other. An interface between the at least two refractive regions forms an acute angle α with the display surface of the display substrate. A width of the repeating unit is smaller than a wavelength of light emitted from the display panel.
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公开(公告)号：US11835823B2
公开(公告)日：2023-12-05
申请号：US18158354
申请日：2023-01-23
申请人： FUJIFILM Corporation
发明人： Yukito Saitoh , Hiroshi Sato , Takashi Yonemoto
IPC分类号： G02F1/1335 , G02F1/1337 , G02F1/13363 , G02F1/00
CPC分类号： G02F1/133757 , G02F1/0045 , G02F1/0063 , G02F1/133504 , G02F1/133631 , G02F2202/40 , G02F2203/22 , G02F2413/08
摘要： A transmissive liquid crystal diffraction element includes a rod-like liquid crystal layer where a rod-like liquid crystal compound is aligned and a disk-like liquid crystal layer where a disk-like liquid crystal compound is aligned that are alternately laminated, in which each of the liquid crystal layers has a predetermined liquid crystal alignment pattern, rotation directions of optical axes in the liquid crystal alignment patterns are the same, single periods of the liquid crystal alignment patterns are the same, a thickness direction retardation |Rth| of each of the liquid crystal layers is 65 nm or less, and at an interface between the liquid crystal layers, longitudinal directions of the liquid crystal compounds match with each other.
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公开(公告)号：US11662586B2
公开(公告)日：2023-05-30
申请号：US17194086
申请日：2021-03-05
申请人： Magic Leap, Inc.
IPC分类号： G02B27/01 , G02B27/28 , G02F1/13363 , G02F1/1337 , G02F1/01 , G02F1/1335 , G02F1/1343 , G02F1/139 , G02B25/00
CPC分类号： G02B27/0172 , G02B25/001 , G02B27/281 , G02F1/0136 , G02F1/1393 , G02F1/133531 , G02F1/133631 , G02F1/133638 , G02F1/133749 , G02F1/133761 , G02F1/134309 , G02B2027/011 , G02B2027/0178 , G02F2413/01 , G02F2413/10
摘要： A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.
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公开(公告)号：US20230161200A1
公开(公告)日：2023-05-25
申请号：US18158354
申请日：2023-01-23
申请人： FUJIFILM Corporation
发明人： Yukito SAITOH , Hiroshi SATO , Takashi YONEMOTO
IPC分类号： G02F1/1337 , G02F1/00 , G02F1/1335 , G02F1/13363
CPC分类号： G02F1/133757 , G02F1/0045 , G02F1/0063 , G02F1/133504 , G02F1/133631 , G02F2202/40 , G02F2203/22 , G02F2413/08
摘要： A transmissive liquid crystal diffraction element includes a rod-like liquid crystal layer where a rod-like liquid crystal compound is aligned and a disk-like liquid crystal layer where a disk-like liquid crystal compound is aligned that are alternately laminated, in which each of the liquid crystal layers has a predetermined liquid crystal alignment pattern, rotation directions of optical axes in the liquid crystal alignment patterns are the same, single periods of the liquid crystal alignment patterns are the same, a thickness direction retardation |Rth| of each of the liquid crystal layers is 65 nm or less, and at an interface between the liquid crystal layers, longitudinal directions of the liquid crystal compounds match with each other.
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