Abstract: A system, method, and platform for detecting natural resources. Gravitational waves are measured utilizing one or more sensor systems associated with an exploration area. The one or more sensor systems include at least an accelerometer capturing measurements in a range of 1 microhertz to 100 microhertz that are stored in a memory associated with the accelerometer. A fast fourier transform is performed for the measurements to generate processed signals. Natural resources are determined proximate the one or more sensor systems from the processed signals.

Abstract: A light grid for mounting on an elevator car door for object detection and for determining periodic door movements, including transmitter elements that emits radiation with a specific intensity, receiver elements for receiving the radiation from an assigned transmitter element, and a control device for evaluating the receiver elements in regard to interruption of the radiation coming from an assigned transmitter element and for outputting a signal for object recognition upon interruption. At least one receiver element is configured to output an intensity value for the received radiation. The control device evaluates the intensity value and distinguishes separate high, medium and low intensity value ranges with high, medium and low intensity values, and performs an alternation phase with at least one alternating from the low via the medium to the low intensity value range and to output a signal in the event of an alternation phase having been recognized.

Abstract: The present disclosure provides a method computer-implemented method for conducting a measurement while drilling (MWD) operation in a wellbore of a reservoir, the method comprising: accessing data encoding measurements obtained from a bit tool during the MWD operation in the wellbore of the reservoir, wherein the bit tool includes a gamma ray detector and a magnetometer; extracting, from the measurements, recordings of a gamma ray detector, wherein the recordings comprise gamma ray measurements taken from more than one azimuthal sectors of a depth location in the wellbore; estimating a bulk density at the depth location in the wellbore using the gamma ray measurements from the more than one azimuthal sectors; and based on, at least in part, the estimated bulk density, adjusting the MWD operation.

Abstract: A method can include, responsive to receipt of a search instruction that includes one or more search criteria, accessing a data structure for subsurface geologic regions categorized at least in part according to parameters that describe depositional environments, where the data structure includes one or more includes virtual distances between the parameters; generating a search result using the one or more search criteria and the data structure, where the search result represents an organization of at least a portion of subsurface geologic regions as closest analogues to the one or more search criteria; and transmitting search result information for graphically rendering the search result to a display as part of an interactive graphical user interface.

Abstract: In a computer-implemented method for evaluating air quality, air quality information is received for a plurality of locations for a plurality of days over a time period. For each location of the plurality of locations a severe air quality percentile for the air quality information for each location of the plurality of locations for the time period is determined and a variance of the air quality information for each location of the plurality of locations for the time period is determined. The plurality of locations is evaluated according to the severe air quality percentile for the air quality information and the variance of the air quality information for each location.

Abstract: A system for estimating cloud cover from moving vehicles includes: vehicle mounted sensors communicating with one or more control modules. The control modules have processors, memory, and input/output (I/O) ports. The I/O ports of the control modules of the vehicles communicate with the sensors. The control modules execute program code stored in the memory including first and second algorithm portions. The first algorithm portion, collects sensor data from the sensors, estimates atmospheric parameters from the sensor data; and computes measurement coordinates from the sensor data and atmospheric parameters. The second algorithm portion generates and selectively updates a cloud map based on from data received from the first algorithm portion, and from high-definition map (HD Map) data.

Abstract: A system for monitoring conditions at a location, such as a roof of a building comprises a superstructure, a power supply, a sensor array, and a central processor. The sensor array may comprise a plurality of data sensors. Each data sensor may be physically connected to the superstructure, and electrically connected to the power supply. The central processor may be configured to receive a plurality of inputs from the plurality of data sensors and communicate the plurality of inputs to a receiver.

Abstract: The invention relates to automated method (1) for providing a dynamic parametric cover to an individual in case of an occurrence of a flood event by using an adoptive risk-transfer structure based on physical flood event measurements. Using a predefined data structure, a geographic or topographic area to be covered is determined. Equally spaced network points are generated over said geographic and/or topographic area providing a meshed network of network points having a definable mesh size and covering the whole geographic and/or topographic area.

Abstract: Improved mechanisms for collecting information from a diverse suite of sensors and systems, calculating the current precipitation, atmospheric water vapor, atmospheric liquid water content, or precipitable water and other atmospheric-based phenomena, for example presence and intensity of fog, based upon these sensor readings, predicting future precipitation and atmospheric-based phenomena, and estimating effects of the atmospheric-based phenomena on visibility, for example by calculating runway visible range (RVR) estimates and forecasts based on the atmospheric-based phenomena.

Abstract: An optoelectronic apparatus includes a substrate and first and second arrays of emitters disposed on the substrate and configured to emit respective first and second beams of optical radiation. The apparatus further includes an optical metasurface disposed on the substrate and configured to collimate and diffuse the first beams without diffusing the second beams, and an optical projection element, configured to intercept both the first and the second beams that have passed through the optical metasurface and to direct both the first and the second beams toward a target while focusing the second beams to form a pattern of spots on the target.

Abstract: An optical lens structure includes an optical substrate, a predetermined processing area, an optical micro thin film and a micro thin film pattern. The optical substrate has a first surface and a second surface and rays of light passes through the optical substrate. The predetermined processing area is provided on the first surface or the second surface of the optical substrate. The micro thin optical film is formed on the predetermined processing area of the first surface or the second surface by non-contact processing with an ink liquid spot material via nozzles. The micro thin film pattern is formed from the micro thin optical film to thereby provide an optical characteristic.

Abstract: A two-way optical path system includes a metasurface lens. The metasurface lens is configured to deflect first incident light incident on a first surface of the metasurface lens as first outgoing light and second incident light incident on a second surface of the metasurface lens as second outgoing light. The first outgoing light and the second outgoing light are received by a first image sensor and a second image sensor for imaging, respectively, or the first incident light and the second incident light are from a first light emitter and a second light emitter, respectively.

Abstract: A method of manufacturing a light control film includes providing a plurality of alternating layers of transparent material and light absorbing material. Each layer of light absorbing material is interspersed between respective layers of transparent material. The plurality of alternating layers are stacked in a stacking direction perpendicular to the plane of a surface of at least one of the plurality of alternating layers. The method includes cutting the plurality of alternating layers in a first and second cutting plane resulting in an intermediate film including a first cut surface parallel to the first cutting plane and a second cut surface parallel to the second cutting plane. Each of the first and second cutting planes is orientated at an angle less than or equal to 90° to the stacking direction. The method includes hot embossing the repeating prismatic structure on the first cut surface of the intermediate film resulting in a serrated/corrugated first surface.

Abstract: A method of manufacturing a light control film. The method includes providing a plurality of alternating layers of transparent material and light absorbing material, where the alternating layers of transparent material and light absorbing material are stacked in a stacking direction. The method also includes cutting, with a triangle wave-shaped edge, across the plurality of alternating layers of transparent material and light absorbing material in a first cutting plane and a second cutting plane thereby resulting in the light control film including a serrated first surface and a serrated second surface, wherein each of the first and second cutting planes is orientated at an angle less than 90° to the stacking direction. The triangle wave-shaped edge includes a cutting edge with a triangular wave shape perpendicular to the first and/or second cutting plane.

Abstract: The present invention relates to a radiative cooling structure and a method for manufacturing the radiative cooling structure. The radiative cooling structure comprises a reflective layer and a protective layer. The protective layer having a recessed portion and outer edges. The outer edges extend vertically on the reflective layer towards a target surface. The outer edges abut the target surface to seal the reflective layer. A bonding material abuts the protective layer to the target surface. Thereby, prolonging the shelf life of the reflective layer.

Abstract: A display device includes: a display member including a first region, a second region, and a third region defined between the first region and the second region; a first coated layer disposed on a first surface of the first region of the display member; and a second coated layer disposed on a first surface of the second region of the display member, where a first modulus of the first coated layer is smaller than a second modulus of the second coated layer.

Abstract: An optical assembly includes a metalens. The metalens includes a nanostructure configured to cause light incident on the metalens to be separated by the metalens into deflection light and zero-order diffraction light. An emission direction of the deflection light is different from an emission direction of the zero-order diffraction light.

Abstract: An imaging lens assembly includes a first optical element and a low-reflection layer. The first optical element has a central opening, and includes a first surface, a second surface and a first outer diameter surface. The first outer diameter surface is connected to the first surface and the second surface. The low-reflection layer is located on at least one of the first surface and the second surface, and includes a carbon black layer, a nano-microstructure and a coating layer. The nano-microstructure is directly contacted with and connected to the carbon black layer, and the nano-microstructure is farther from the first optical element than the carbon black layer from the first optical element. The coating layer is directly contacted with and connected to the nano-microstructure, and the coating layer is farther from the first optical element than the nano-microstructure from the first optical element.

Abstract: An imaging lens assembly includes a first optical element and a low-reflection layer. The first optical element has a central opening, and includes a first surface, a second surface and a first outer diameter surface. The first outer diameter surface is connected to the first surface and the second surface. The low-reflection layer is located on at least one of the first surface and the second surface, and includes a carbon black layer, a nano-microstructure and a coating layer. The nano-microstructure is directly contacted with and connected to the carbon black layer, and the nano-microstructure is farther from the first optical element than the carbon black layer from the first optical element. The coating layer is directly contacted with and connected to the nano-microstructure, and the coating layer is farther from the first optical element than the nano-microstructure from the first optical element.

Abstract: To reduce unevenness in a luminance distribution in two directions of microlenses disposed in a form of a rectangular grid to improve uniformity of light distribution. Provided is a diffuser plate of a microlens array type including a base material, and a microlens array composed of a plurality of microlenses disposed on an X-Y plane on at least one surface of the base material using a rectangular grid as a reference, in which grid intervals Wx in an X direction of the microlenses disposed in the X direction of the rectangular grid are different from each other, grid intervals Wy in a Y direction of the microlenses disposed in the Y direction of the rectangular grid are different from each other, and surface shapes of the plurality of microlenses are different from each other.

Abstract: An anti-peeping film and a display device are provided. The anti-peeping film includes multiple anti-peeping layers. Each anti-peeping layer includes light-blocking portions and light-transmissive portions. The light-blocking portions are arranged in parallel. Each light-transmissive portion is connected between adjacent two light-blocking portions. The anti-peeping film includes multiple anti-peeping layers, each anti-peeping layer includes multiple equidistant light-blocking portions and multiple light-transmissive portions, a ratio of a width of the light-blocking portion in an arrangement direction to a width of the light-transmissive portion in the arrangement direction ranges from 0.045:1 to 0.088:1. Accordingly, a proportion of the area occupied by the light-transmissive portions is increased, leading to an enhancement in the light transmittance of the anti-peeping film. The presence of the light-blocking portions guarantees the light-blocking effect of the anti-peeping film.

Abstract: The present invention provides an optical filter having a narrow bandpass, high transmittance in the bandpass, low transmittance outside the bandpass, little change in optical properties even when the incident angle of light changes and thus, being advantageous in terms of yield and cost per hour. In addition, the present invention may provide a LiDAR system including the optical filter and an application of the optical filter and the LiDAR system.

Abstract: A system may have a support structure and a window that separate an exterior region from an interior region. The window may have one or more glass layers with a thin-film interference filter that is configured to block infrared light while transmitting visible light. The filter may be transparent to radio-frequency signals so that a radio-frequency transceiver in the interior may transmit and receive radio-frequency signals through the filter. The filter may have one or more thin-film metal layers such as one or more thin-film crystalline silver layers that are patterned to form isolated metal islands and may have transparent inorganic thin-film dielectric layers interspersed with the metal layers.

Abstract: A multilayer structure that reflects color having a core layer and a conformal dielectric layer encapsulating the core layer. A conformal barrier layer encapsulates the conformal dielectric layer, and a conformal absorber layer encapsulates the conformal barrier layer.

Abstract: A multilayer structure that reflects color includes a core layer, and a conformal dielectric layer encapsulating the core layer. A conformal absorber layer encapsulates the conformal dielectric layer. The multilayer structure consists of three optical layers.

Abstract: Provided is a sensor having a high SN ratio. The sensor includes a light source, a band pass filter, and a light-receiving element, in which the band pass filter includes two cholesteric liquid crystal layers and a discontinuous layer disposed between the two cholesteric liquid crystal layers, in the two cholesteric liquid crystal layers, helical twisted directions and helical pitches are the same, and in a case where the discontinuous layer is a layer other than a cholesteric liquid crystal layer and a wavelength having a lowest reflectivity in a selective reflection wavelength range of the band pass filter is represented by ?m [nm], a thickness [nm] is in a range of “30×(?m/550) to 150×(?m/550)”.

Abstract: Provided are a light guide plate, an area light source device, a display device, and manufacturing method for the light guide plate such that the occurrence of uneven luminance is suppressed. The light guide plate is characterized in that the light guide plate has a light entrance surface through which light enters, a light exit surface intersecting with the light entrance surface and through which light is output, and an opposite surface facing the light entrance surface, wherein the light entering through the light entrance surface is guided to the opposite surface side and output from the light exit surface, and the refractive index Nx in a direction perpendicular to the light entrance surface is higher than the refractive index Ny in a direction parallel to the light exit surface and parallel to the light entrance surface.

Abstract: The invention provides a light generating system (1000) configured to provide system light (1001), wherein the light generating system (1000) comprises (i) a first light generating device (110), (ii) a second light generating device (120), and (iii) a waveguide (400), wherein:—the waveguide (400) has a first face (401), a second face (402), and a side face (403) bridging the first face (401) and the second face (402);—the first light generating device (110) is configured to generate first device light (111), wherein in an operational mode the first device light (111) has a color point in the visible; the first light generating device (110) is configured to irradiate the side face (403), wherein in an operational mode at least part of the first device light (111) escapes from the waveguide (400) via the first face (401); and—the second light generating device (120) is configured to generate second device light (121), wherein in an operational mode the second device light (121) has a centroid wavelength of at m

Abstract: An illumination panel device includes a housing, a first circuit board, a second circuit board, and a light guide. The housing includes a frame coupled to a rear cover. The frame defines an opening. The first circuit board includes a plurality of white light emitters. The first circuit board is coupled to the frame such that the plurality of white light emitters are arranged around the opening. The second circuit board includes a plurality of multi-color light emitters. The second circuit board is coupled to the frame such that the plurality of multi-color light emitters are arranged around the opening. The light guide has opposite front and back surfaces. The light guide is arranged in the opening with the back surface facing the rear cover. The light guide is optically coupled to at least the plurality of white light emitters through peripheral edges of the light guide.

Abstract: Holographic energy directing systems may include a waveguide array and a relay element. Disclosed calibration approaches allows for mapping of energy locations and mapping of energy locations to angular direction of energy as defined in a four-dimensional plenopic system. Distortions due to the waveguide array and relay element may also be compensated.

Abstract: An embodiment is a package including a package substrate and a package component bonded to the package substrate, the package component including an interposer, an optical die bonded to the interposer, the optical die including an optical coupler, an integrated circuit die bonded to the interposer adjacent the optical die, a lens adapter adhered to the optical die with a first optical glue, a mirror adhered to the lens adapter with a second optical glue, the mirror being aligned with the optical coupler of the optical die, and an optical fiber on the lens adapter, a first end of the optical fiber facing the mirror, the optical fiber being configured such that an optical data path extends from the first end of the optical fiber through the mirror, the second optical glue, the lens adapter, and the first optical glue to the optical coupler of the optical die.

Abstract: A semiconductor structure includes an optical interposer having at least one first photonic device in a first dielectric layer and at least one second photonic device in a second dielectric layer, wherein the second dielectric layer is disposed above the first dielectric layer. The semiconductor structure further includes a first die disposed on the optical interposer and electrically connected to the optical interposer; a first substrate under the optical interposer; and conductive connectors under the first substrate.

Abstract: An optical phased array device and method for manufacturing an optical phased array for the optical phased array device. The method includes: forming a base layer of a waveguide array on a base substrate, determining a waveguide pattern defining a plurality of waveguide paths, and fabricating a pattern layer of the waveguide array on top of the base layer of the waveguide array according to the determined waveguide pattern. The plurality of waveguide paths branch from a common path and terminate at a plurality of edge emitters, where the plurality of edge emitters are spaced apart from one another along a first axis that extends in the first dimension along an edge of the optical phased array. The spacing of multiple ones of the plurality of emitters along the first axis is aperiodic.

Abstract: Embodiments include a photonic device with a compensation structure. The photonic device includes a waveguide with a refractive index which changes according to the thermo-optic effect as a temperature of the photonic device fluctuates. The compensation structure is positioned on the photonic device to counteract or otherwise alter the thermo-optic effect on the refractive index of the waveguide in order to prevent malfunctions of the photonic device.

Abstract: An optical chip includes a chip area located on a wafer, and an optical circuit arranged in the chip area. The optical chip includes a first waveguide that is connected to a first operational fiber, a second waveguide, and a first coupler that includes a first port that is connected to the first waveguide and the second waveguide and a second port that is connected to the optical circuit. Furthermore, the optical chip includes a first trench that is formed on a surface of the chip area, that is connected to the second waveguide, and in which a first test purpose fiber is inserted.

Abstract: A polarization rotator includes a bus waveguide disposed on a first layer having a longitudinal axis, a first end, and a second end, and a first upper waveguide and a second upper waveguide disposed on a second layer, above the first layer, the first upper waveguide and the second upper waveguide widening as the first upper waveguide and the second upper waveguide extend from the first end to the second end. The first upper waveguide and the second upper waveguide may also symmetrically bend toward each other and then away from each other proximate the second end.

Abstract: A polarization splitter rotator includes a first lower waveguide and a second lower waveguide disposed on a first layer, the first lower waveguide and the second lower waveguide, in a first portion of the device, widening symmetrically as the first lower waveguide and the second lower waveguide extend from an input end of the device to an output end of the device, and, in a second portion of the device, at least the second lower waveguide widening further, asymmetrically, from the first lower waveguide, and a bus waveguide disposed on a second layer, above the first layer, at least partially overlapping portions of the first lower waveguide and the second lower waveguide.

Abstract: A plurality of waveguide display substrates, each waveguide display substrate having a cylindrical portion having a diameter and a planar surface, a curved portion opposite the planar surface defining a nonlinear change in thickness across the substrate and having a maximum height D with respect to the cylindrical portion, and a wedge portion between the cylindrical portion and the curved portion defining a linear change in thickness across the substrate and having a maximum height W with respect to the cylindrical portion. A target maximum height Dt of the curved portion is 10?7 to 10?6 times the diameter, D is between about 70% and about 130% of Dt, and W is less than about 30% of Dt.

Abstract: A waveguide device includes a first diffractive element, a second diffractive element, a third diffractive element, and a waveguide element. The first diffractive element is configured to diffract light of a wavelength to propagate with a diffraction angle. The second diffractive element is configured to diffract the light of the wavelength to propagate with the diffraction angle. The third diffractive element is configured to diffract the light of the wavelength to propagate with the diffraction angle. The waveguide element is configured to guide the light of the wavelength to propagate from the first diffractive element to the second diffractive element and the third diffractive element. Diffraction efficiencies of the second diffractive element and the third diffractive element are different.

Abstract: A variable optical attenuator (VOA) may include an input collimator with an input fiber connected on one side and an output collimator with an output fiber connected on one side, where the collimators are on a same surface of a VOA enclosure. A retroreflector may receive a light beam from the input collimator and reflect the light beam to the output collimator. The VOA may include an attenuation element positioned between the input collimator and the retroreflector and/or another attenuation element positioned between the retroreflector and the output collimator to provide variable attenuation to the light beam. The attenuation elements may be moved to set an attenuation level by one or more adjustment elements such as a miniature motor. The attenuation element may include a gradient index (GRIN) element, a polarizer, a neutral density filter, or a wavelength tunable filter.

Abstract: Methods and systems concerning demultiplexing and multiplexing light in optical multiplexing systems are disclosed herein. An optical multiplexing system may include a number of light emitters and a number of associated waveguides. Light emitted from each of the number of light emitters may travel through the associated waveguide and may enter a multiplexer, where a multiplexing operation may occur. At least one of the number of light emitters may be configured to emit light with multiple wavelengths. Such a light emitter may further be associated with a demultiplexer to demultiplex the light with multiple wavelengths before the light reaches a multiplexer. After a demultiplexing operation, the demultiplexed light may be directed to multiple waveguides and the multiple waveguides may guide the demultiplexed light to a multiplexer.

Abstract: A method of using an integrated circuit includes monitoring a current between a first photodetector (PD) and an electronic circuit. The method further includes determining whether the monitored current is abnormal. The method further includes controlling a resonant structure to optically couple a first waveguide connected to the first PD to a second waveguide connected to a second PD, different from the first PD, in response to a determination that the monitored current is abnormal.

Abstract: An adapter bulkhead apparatus may include an adapter holder portion structurally configured to hold an adapter, a retaining portion structurally configured to movingly retain the adapter holder portion. The adapter holder portion may include an adapter receiving portion structurally configured to receive an adapter. The adapter holder portion may include a plurality of adapter holders that are structurally configured to slide relative to one another and relative to the retaining portion so as to enhance access space to the adapter held by the adapter holder portion.

Abstract: The present disclosure relates generally to a bare fiber connection system that includes first and second multi-fiber fiber optic connectors that have a retractable shroud with a pivotal locking member mounted thereon. The pivotal locking member can be configured to lock the retractable shroud in an extended position. The pivotal locking member can be pivoted about a pivot point while remaining attached to the retractable shroud to unlock the retractable shroud such that the retractable shroud can move to a retracted position.

Abstract: A photoelectric connector and a photoelectric adapter. The photoelectric connector includes: a housing assembly (1) including a front-rear run-through receiving space (11); a light guide assembly (2) including a tail handle (21), an insert core (22), and an optical fiber (23), the insert core (22) being disposed on one end of the tail handle (21), the tail handle (21) being disposed in the receiving space (11), and the optical fiber (23) being sequentially threaded into the tail handle (21) and the insert core (22); and a conductive assembly (3) including at least one conductive pin (31) and a cable (32) connected to the conductive pin (31); the conductive pin (31) and the insert core (22) being located on the same side of the receiving space (11); and the conductive pin (31) being disposed on the tail handle (21). The photoelectric connector and the photoelectric adapter may simplify a plugging operation.

Abstract: The present disclosure relates to a matched pair detachable connector for high fiber count applications where the configuration of the connector maintains optical fiber alignment and ferrule alignment during assembly of the connector.

Abstract: A shuffle cable provides optical fibers in color-coded groups to facilitate the break-out of optical fibers into standard multi-color, multi-signal ribbon cables within the context of spine-leaf cabling.

Abstract: Configurations for an optical coupler that includes waveguides that provide asymmetric mode confinement. The optical coupler may include first and second rib waveguides, and the width of the shoulder of at least one rib waveguide may taper to provide the asymmetric mode confinement. In some instances the shoulders of one or both rib waveguides may have different heights in a central region of the optical coupler.

Abstract: An optical unit of plastic provided with a surface for incident light and a surface for outgoing light, wherein the surface for incident light is designed to face a light source and the surface for outgoing light is designed to face an element for receiving light so as to optically connect the light source and the element for receiving light and wherein the optical unit is so shaped that light that comes from the light source and is incident on the surface for incident light forms a first image of the light source within the optical unit and a second image of the light source after having gone through the surface for outgoing light and the optical unit is provided with an attenuating portion for attenuating the quantity of light passing therethrough in the vicinity of the position where the first image is formed.

Abstract: An optical assembly (100) for use in a wearable device is provided, the assembly (100) comprising: a prism (104), a photonic integrated chip, PIC (108), a substrate layer (106), and a lid (102); wherein the PIC (108) is mounted onto the substrate layer (106); the prism (104) comprising: (i) a first input/output surface (112) optically coupled to the PIC (108), and (ii) a second input/output surface (114) optically coupled to the lid (102), the second input/output surface (114) orientated perpendicularly to the first input/output surface (112), and wherein the prism (104) provides an optical path and reflects a percentage of light from the first input/output surface (112) to the second input/output surface (114). Methods of manufacturing such an optical assembly are also provided.