-
公开(公告)号：US12046165B2
公开(公告)日：2024-07-23
申请号：US18349362
申请日：2023-07-10
Applicant: LUMUS LTD.
Inventor： Shimon Grabarnik , Tsion Eisenfeld , Elad Sharlin
CPC classification number: G09G3/001 , G02F1/011 , G02F2201/06 , G02F2203/01 , G02F2203/02 , G09G2320/0257 , G09G2354/00 , G09G2360/144
Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target portion of an eye motion box and to identify a facet of a light-guide optical element that is configured to direct a light beam comprising at least a portion of an image field of view toward the target portion of the eye motion box. The at least one processor is configured to identify a display region of an image generator that is configured to inject the light beam into the light-guide optical element at an angle that, in conjunction with the identified facet, is configured to direct the light beam toward the target portion of the eye motion box. The at least one processor is configured to selectively activate the identified facet and the identified display region to direct the light beam toward the target portion of the eye motion box.
-
公开(公告)号：US20240231177A1
公开(公告)日：2024-07-11
申请号：US18558466
申请日：2022-05-03
Inventor： Jason MAK , Youngho JUNG , Wesley SACHER , Joyce POON
CPC classification number: G02F1/292 , G02F1/0147 , G02F2201/06 , G02F2201/302 , G02F2202/10 , G02F2203/24 , G02F2203/50
Abstract: A beam-steering device (100) for spatial steering of a light beam comprises a waveguide array (10) being arranged on a substrate (50) and comprising a waveguide array input (12), multiple waveguides (14-1, 14-2, . . . , 14-i) and a waveguide array output (16), wherein the multiple waveguides (14-1, 14-2, . . . , 14-i) are adapted for simultaneously guiding light from the waveguide array input (12) to the waveguide array output (16) and for forming a light beam downstream of the waveguide array output (16) by superimposing the light guided by the waveguides (14-1, 14-2, . . . , 14-i), a phase shifter device (18) being arranged for applying controlled phase shifts to the light guided in each of the waveguides (14-1, 14-2, . . . , 14-i), and a grating array (22) including at least one patterned grating in optical communication with the waveguide array output (16), the grating array (22) being configured to radiate the light beam out of the beam-steering device (100) to a surrounding, wherein the waveguide array output (16) is arranged such that the light beam is formed downstream of the waveguide array output (16) with a main lobe and side lobes and with a beam angle Φ in a plane of the substrate (50), that is determined by the controlled phase shifts applied to the light by the phase shifter device (18) and a wavelength of the light, a slab propagation region (20) is arranged between the waveguide array output (16) and the grating array (22) such that the main lobe of the light beam is angularly relayed to the grating array (22) and the side lobes of the light beam leave lateral sides of the slab propagation region (20) before reaching the grating array (22), and the grating array (22) is arranged to radiate the light beam out of the beam-steering device (100) with a first angular direction with respect to the substrate (50), that is determined by the beam angle Φ. Furthermore, a method of beam-steering a light beam is described.
-
公开(公告)号：US11977314B2
公开(公告)日：2024-05-07
申请号：US17483643
申请日：2021-09-23
Inventor： Takaiki Nomura , Masahiko Tsukuda , Yasuhisa Inada
IPC: G02B6/12 , G01S7/481 , G02B6/122 , G02B27/00 , G02F1/035 , G02F1/13 , G02F1/1339 , G02F1/137 , G02F1/29 , G02F1/295 , G01S17/08 , G02B6/124 , G02B6/125
CPC classification number: G02F1/2955 , G01S7/4817 , G02B6/12 , G02B6/122 , G02B27/0087 , G02F1/035 , G02F1/13 , G02F1/1326 , G02F1/1339 , G02F1/13394 , G02F1/137 , G02F1/292 , G02F1/295 , G01S7/481 , G01S17/08 , G02B6/12004 , G02B2006/121 , G02B2006/12104 , G02B2006/12107 , G02B2006/12138 , G02B6/124 , G02B6/125 , G02F2201/06 , G02F2201/066 , G02F2201/302
Abstract: An optical device includes a first substrate having a first surface, a second substrate having a second surface, at least one optical waveguide, and a plurality of spacers, disposed on at least either the first surface or the second surface, that include a first portion and a second portion. The first portion of the plurality of elastic spacers is at least one elastic spacer located in a region between the first substrate and the second substrate in which the first substrate and the second substrate overlap each other as seen from an angle parallel with a direction perpendicular to the first surface. The second portion of the plurality of elastic spacers is at least one elastic spacer located in a region in which the first substrate and the second substrate do not overlap each other as seen from an angle parallel with the direction perpendicular to the first surface.
-
公开(公告)号：US20180173024A1
公开(公告)日：2018-06-21
申请号：US15846413
申请日：2017-12-19
Applicant: NeoPhotonics Corporation
Inventor： Kenneth McGreer , Calvin Ho
CPC classification number: G02F1/0147 , G02F1/225 , G02F1/2257 , G02F2001/212 , G02F2201/06 , G02F2202/09 , G02F2203/48 , G02F2203/50
Abstract: Mach-Zehnder interferometers comprise heater elements configured to have projections in the plane of optical waveguides positioned such that two adjacent sections of one optical waveguide arms are heated by a common heater element. The heater and at least a substantial section of the heated waveguide segments can be curved. Configurations of an optical waveguide arm can comprise an outer curved heated section, an inner curved heated section, and a loopback waveguide section connecting the outer curved heated section and the inner curved heated section, with average radius of curvature selected to form an open accessible space. Appropriate configurations of the two optical waveguide arms provide for nested configurations of the arms that provide for a compact structure for the interferometer.
-
公开(公告)号：US20180081253A9
公开(公告)日：2018-03-22
申请号：US15492262
申请日：2017-04-20
Applicant: Chen-Kuo Sun
Inventor： Chen-Kuo Sun , Dingbo Chen
CPC classification number: G02F1/3132 , G02B6/00 , G02B6/136 , G02B6/138 , G02F1/065 , G02F1/3133 , G02F2001/3135 , G02F2201/06 , G02F2201/12 , H01P11/003
Abstract: An optical modulator for switching an optical signal of wavelength λ from one waveguide-electrode to another requires that both waveguide-electrodes be made of an electrically conducting material. Also, a non-conducting cross-coupling material fills a slot along a length L between the waveguide-electrodes. Importantly, cross-coupling material in the slot provides a separation distance xc between the waveguide-electrodes that is less than 0.35 microns. When a switching voltage Vπ is selectively applied to the waveguide-electrodes, a strong uniform electric field E is created within the cross-coupling material. Thus, E modulates the cross-coupling length of the optical signal by an increment ±Δ each time it passes back and forth through the cross-coupling material along the length L. Thus, after an N number of cross-coupling length cycles along the length L, when NΔ equals one cross-coupling length, the optical signal is switched from one waveguide-electrode to the other.
-
Patent Agency Ranking
公开(公告)号：US20180081206A1
公开(公告)日：2018-03-22
申请号：US15636474
申请日：2017-06-28
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Mary K. Salit
CPC classification number: G02F1/125 , G01C19/721 , G02B6/036 , G02B6/122 , G02B6/132 , G02B6/136 , G02B2006/12176 , G02F2201/06
Abstract: An embodiment of a waveguide has a Brillouin bandwidth, and includes cladding and a core. The cladding includes first layers of a first material, each first layer having a physical characteristic of approximately a first value, and includes second layers of a second material, each second layer having the physical characteristic of approximately a second value, the second layers alternating with the first layers such that the Brillouin bandwidth is wider than the Brillouin bandwidth would be if the cladding excluded the first layers or excluded the second layers. For example, the first and second cladding layers can be formed from different materials, or can be formed having different values of a physical characteristic such as thickness, acoustic velocity, or index of refraction. Such a waveguide can facilitate alignment of the waveguide's optical bandwidth with the waveguide's Brillouin bandwidth because the Brillouin bandwidth is widened compared to conventional waveguides.
-
公开(公告)号：US09885939B2
公开(公告)日：2018-02-06
申请号：US15620809
申请日：2017-06-12
Applicant: Zhengbiao Ouyang
Inventor： Zhengbiao Ouyang , Guohua Wen
CPC classification number: G02F1/3133 , G02B6/122 , G02B26/00 , G02F2201/06 , G02F2202/32 , G02F2203/07
Abstract: The present invention discloses a TEOS based on slab PhCs with a high DOP and large EXR, which comprises an upper slab PhC and a lower slab PhC; the upper slab PhC is a first square-lattice slab PhC with a TM bandgap and a complete bandgap, wherein the unit cell of the first square-lattice slab PhC includes a high-refractive-index rotating-square pillar, a single first flat dielectric pillar and a background dielectric, the first flat dielectric pillar includes a high-refractive-index dielectric pipe and a low-refractive-index dielectric, or a high-refractive-index flat film, or a low-refractive-index dielectric; the lower slab PhC is a second square lattice slab PhC with a TM bandgap and complete bandgap, wherein the unit cell of the second square-lattice slab PhC includes a high-refractive-index rotating-square pillar, a single second flat dielectric pillar and a background dielectric, and an normalized operating frequency of the TEOS is 0.453 to 0.458.
-
公开(公告)号：US20180031872A1
公开(公告)日：2018-02-01
申请号：US15718350
申请日：2017-09-28
Applicant: OHIO STATE INNOVATION FOUNDATION
Inventor： Ronald M. REANO , Peng SUN , Qiang XU
CPC classification number: G02F1/0136 , G02B6/12002 , G02B6/126 , G02B6/136 , G02B6/2934 , G02B6/3504 , G02B6/3596 , G02F1/0147 , G02F1/025 , G02F2201/06 , G02F2202/10
Abstract: An example optical polarization controller can include a substantially planar substrate and a waveguide unit cell formed on the substantially planar substrate. The waveguide unit cell can include a first out-of-plane waveguide portion and a second out-of-plane waveguide portion coupled to the first out-of-plane waveguide portion. Each of the first and second out-of-plane waveguide portions can respectively include a core material layer arranged between a first optical cladding layer having a first stress-response property and a second optical cladding layer having a second stress-response property. The first and second stress-response properties can be different such that each of the first and second out-of-plane waveguide portions is deflected by a deflection angle.
-
公开(公告)号：US09880443B2
公开(公告)日：2018-01-30
申请号：US15481179
申请日：2017-04-06
Applicant: Analog Devices, Inc.
Inventor： Michael H. Anderson , Scott R. Davis , Scott D. Rommel
CPC classification number: G02F1/295 , G02F1/1326 , G02F1/29 , G02F1/2955 , G02F2001/291 , G02F2201/06 , G02F2201/12 , G02F2201/122
Abstract: A substantially planar waveguide for dynamically controlling the out-of-plane angle at which a light beam exits the waveguide. Generally, liquid crystal materials may be disposed within a waveguide in a cladding proximate or adjacent to a core layer of the waveguide. In one example, the waveguide may contain one or more taper regions such that the light beam exits the waveguide and propagates out-of-the-plane of the waveguide into an out-coupling medium at a propagation angle. In one example, the waveguide may contain one or more electrodes onto which one or more voltages may be applied. The magnitude of the propagation angle may be electronically controlled by altered by controlling or altering the magnitude of the one or more applied voltages.
-
10.发明申请公开(公告)号：US20170293078A1
公开(公告)日：2017-10-12
申请号：US15626161
申请日：2017-06-18
Applicant: ZHENGBIAO OUYANG
Inventor： ZHENGBIAO OUYANG , GUOHUA WEN
CPC classification number: G02B6/1225 , G02B26/02 , G02F1/313 , G02F2201/06 , G02F2202/32 , G02F2203/06
Abstract: The present invention discloses a PIOS with a high extinction ratio based on slab PhCs which comprises an upper slab PhC and a lower slab PhC connected as a whole; the upper slab PhC is a first square-lattice slab PhC, the unit cell of the first square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single first flat dielectric pillar and a background dielectric; the first flat dielectric pillar includes a high-refractive-index dielectric pipe and a low-refractive-index dielectric, or a high-refractive-index flat films, or a low-refractive-index dielectric; the lower slab PhC is a second square-lattice slab PhC with a complete bandgap, the unit cell of said second square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single second flat dielectric pillar and a background dielectric is a low-refractive-index dielectric; and an normalized frequency of the optical switch is 0.41 to 0.4167.
-
-
-
-
-
-
-
-
-
Search Results
134
records
(took 0.038 seconds)
