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公开(公告)号：US12130481B2
公开(公告)日：2024-10-29
申请号：US17556715
申请日：2021-12-20
发明人： Kazuki Nakamura , Yasuhisa Inada
CPC分类号： G02B6/4214 , G01S7/4817 , G01S17/42 , G02B6/12 , G02B6/12004 , G02B6/122 , G02B6/125 , G02B6/34 , G02B2006/12104
摘要： A light emitting device includes a waveguide element including a first mirror that is light transmissive, a second mirror that faces the first mirror, and an optical waveguide layer located between the first mirror and the second mirror, the waveguide element allowing light input to the optical waveguide layer to propagate along a first direction and to be emitted through the first mirror; a first photodetector that is located on a path of light to be input to the optical waveguide layer or on another path branching off from the path and outputs a first signal according to an amount of received light; and a second photodetector that is located on a path of light that has propagated through the optical waveguide layer along the first direction and passed the optical waveguide layer and outputs a second signal according to an amount of received light.
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公开(公告)号：US20240329324A1
公开(公告)日：2024-10-03
申请号：US18738465
申请日：2024-06-10
申请人： Analog Photonics LLC
CPC分类号： G02B6/3556 , G02B6/3512 , G02B6/3526 , G02B6/3534 , G02B6/3558 , G02F1/011 , G02F1/0147 , H04B10/11 , H04B10/27 , H04Q11/0005 , G02B6/34 , G02B6/3548 , G02B6/3596 , H04Q2011/0035 , H04Q2011/0041
摘要： Aspects of the present disclosure describe large scale steerable optical switched arrays that may be fabricated on a common substrate including many thousands or more emitters that may be arranged in a curved pattern at the focal plane of a lens thereby allowing the directional control of emitted light and selective reception of reflected light suitable for use in imaging, ranging, and sensing applications including accident avoidance.
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公开(公告)号：US12105324B2
公开(公告)日：2024-10-01
申请号：US18360820
申请日：2023-07-28
发明人： Feng-Wei Kuo , Chewn-Pu Jou
CPC分类号： G02B6/1223 , G02B6/0083 , G02B6/12007 , G02B6/14 , G02B6/29325 , G02B6/30
摘要： Disclosed are apparatuses for optical coupling and a system for communication. In one embodiment, an apparatus for optical coupling having an optical coupling region is disclosed. The apparatus for optical coupling includes a substrate and a core layer disposed on the substrate. The core layer includes a plurality of holes located in the optical coupling region. An effective refractive index of the core layer gradually decrease from a first end of the optical coupling region to a second end of the optical coupling region.
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公开(公告)号：US12099241B2
公开(公告)日：2024-09-24
申请号：US18305256
申请日：2023-04-21
CPC分类号： G02B6/34 , G03F7/0005 , G03F7/094 , B29C33/3842 , G02B2207/101 , G03F7/0002
摘要： A method for forming a device structure is disclosed. The method of forming a device structure includes forming a variable-depth structure in a device material layer using a laser ablation. A plurality of device structures is formed in the variable-depth structure to define slanted device structures therein. The variable-depth structure and the slanted device structures are formed using an etch process.
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公开(公告)号：US20240288635A1
公开(公告)日：2024-08-29
申请号：US18587511
申请日：2024-02-26
申请人： Lumenis Ltd.
发明人： Asaf Granot
CPC分类号： G02B6/262 , A61B18/26 , G02B6/34 , A61B2018/2244 , A61B2018/2261 , A61B2018/2294
摘要： This disclosure teaches the use of an endoscopic surgical laser with beam diffraction. During a lithotripsy procedure, an endoscopic probe with a laser fiber is deployed. A diffraction grating within the optical core of the laser fiber disperses the laser energy over a larger area for more effective ablation of renal calculi.
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公开(公告)号：US20240272427A1
公开(公告)日：2024-08-15
申请号：US18681849
申请日：2023-01-10
发明人： Zhentao FAN , Xingming ZHAO , Kehan TIAN
CPC分类号： G02B27/0081 , G02B6/34
摘要： The present application discloses an optical waveguide device, which comprises a waveguide substrate and a coupling-in grating and a coupling-out grating arranged on the waveguide substrate, and the coupling-in grating is configured to couple an input light beam from the outside of the waveguide substrate into the waveguide substrate so that the input light beam can be transmitted to the coupling-out grating through total reflection. Wherein the coupling-in grating has a grating vector direction pointing to the coupling-out grating, and the coupling-out grating includes a one-dimensional region in which a one-dimensional grating is formed and a two-dimensional region in which a two-dimensional grating is formed. The application further discloses display equipment comprising the optical waveguide device.
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公开(公告)号：US20240248324A1
公开(公告)日：2024-07-25
申请号：US18414370
申请日：2024-01-16
申请人： LEIA INC.
发明人： Yuanrui Li , David A. Fattal
摘要： A static color multiview display and method provide a static color multiview image using color-selective diffractive gratings configured to emit directional light beams that encode color view pixels of the static color multiview image. The static color multiview display includes a light guide configured to guide plurality of guided light beams having different radial directions and a light source configured to provide polychromatic light to be guided as the guided light beam plurality. The static color multiview display further includes a plurality of diffraction gratings configured to a scatter out a plurality of directional light beams that encode the color view pixels, each diffraction grating being configured to scatter out from one of the guided light beams a directional light beam having a predetermined color, intensity, and direction corresponding to a color, intensity, and view direction of a color view pixel of the static color multiview image.
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公开(公告)号：US20240231004A9
公开(公告)日：2024-07-11
申请号：US18279826
申请日：2022-03-04
申请人： Vuzix Corporation
发明人： Robert J. Schultz
CPC分类号： G02B6/34 , G02B27/0172
摘要： An image light guide for conveying a virtual image including a substrate operable to propagate image-bearing light beams along a length thereof. An in-coupling diffractive optic is formed along the substrate and is operable to diffract image-bearing light beams from an image source into the substrate in an angularly encoded form. An out-coupling diffractive optic is formed along the substrate, wherein the out-coupling diffractive optic is operable to diffract the image-bearing light beams from the substrate in an angularly decoded form. The in-coupling diffractive optic has three pluralities of periodic diffractive structures symmetric about three equidistant axes and the out-coupling diffractive optic has two pluralities of periodic diffractive structures having a periodicity equivalent to two of the three pluralities of periodic diffractive structures of the in-coupling diffractive optic. The two pluralities of periodic diffractive structures of the out-coupling diffractive optic are also parallel with two of the three pluralities of periodic diffractive structures of the in-coupling diffractive optic.
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公开(公告)号：US20240201443A1
公开(公告)日：2024-06-20
申请号：US18554049
申请日：2022-01-26
发明人： Kazue SHIMIZU , Nobuhiro KIHARA , Christophe PEROZ
CPC分类号： G02B6/34 , G02B6/262 , G02B27/0081
摘要： An image display apparatus capable of achieving uniform image quality while improving the use efficiency of incident light, including: an image forming unit that emits image light and converts the image light into parallel light for an angle of view; a light guide plate that allows the image light converted by the image forming unit to enter, to travel inside the light guide plate, and to be emitted outward from the light guide plate; a first diffraction grating in the light guide plate that diffracts the image light and causes the image light to travel inside the light guide plate; a second diffraction grating in the light guide plate that diffracts the image light traveling inside the light guide plate and emits the image light outward from the light guide plate; and a recycler diffraction grating that diffracts and recycles the image light emitted from the second diffraction grating.
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10.发明授权公开(公告)号：US12007565B2
公开(公告)日：2024-06-11
申请号：US17233521
申请日：2021-04-18
发明人： Hung-Ta Chien
CPC分类号： G02B27/0172 , G02B6/12004 , G02B6/34 , G02B2006/12035 , G02B2006/12166
摘要： The disclosure provides an optical waveguide, a manufacturing method of an optical waveguide, and a head-mounted display device. The optical waveguide has a first optical region and a second optical region for transmitting an image beam. The optical waveguide includes a plate body, multiple first light-guiding optical elements, and multiple optical microstructures. The first light-guiding optical elements are disposed in parallel lines on a light-guiding plane inside the plate body. The light-guiding plane is located in the first optical region, and there is a spacing between the adjacent first light-guiding optical elements. The image beam transmitted to the light-guiding plane is separated into multiple sub image beams, and the transmission paths of the sub image beams are at least partially different. The optical coupling-out structure is disposed in the plate body and is located in the second optical region.
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