51 results about "Emitter array" patented technology

A lidar system and method. Each emitter of the emitter array emits a light beam directed toward the FOV through the scanning unit. In one embodiment, an emission light beam guided according to an alternating energy level illumination protocol enables detection under halo, in which a first light beam emitted by a first emitter and having a first energy level illuminates a first FOV region, and a second light beam emitted by a second emitter and having a second energy level illuminates a second FOV region. And a second light beam emitted by the second emitter and having a second energy level irradiates a second FOV region adjacent to the first FOV region, wherein the first energy level is lower than the second energy level. In another embodiment, an emission light beam guided according to an offset illumination protocol enables detection under halo, where a first light beam emitted by a first emitter in a first plurality of scan lines illuminates the FOV portion at a first time and a second light beam emitted by a second emitter in a second plurality of scan lines at a second time. And a second light beam emitted by the second emitter in the second plurality of scan lines illuminates the FOV portion at a second time after the first time. Each detector of the detector array detects a reflection of the emitted light beam.

A sensing system may include an illumination projector, an image sensor, and one or more controllers. The illumination projector may project a partial illumination pattern on a target object. The image sensor may sense the partial illumination pattern projected on the target object and may generate signals representative of the sensed illumination pattern. The one or more controllers may control the illumination projector and process the signals generated by the image sensor. The illumination projector may include a microlens array and an emitter array. A spatial relationship of emitters of the emitter array to microlenses of the microlens array may cause the emitter array and the microlens array to project light upon the target object in the partial illumination pattern.

The invention relates to an Optical Front-end, OFE, (400) for Optical Wireless Communication, OWC, the OFE comprising: an optical receiver with at least a photodetector (102a) and a trans-impedance amplifier, and a two-dimensional array of optical transmitters (103a) each having an individual transmitter field-of-view, and one or more drivers, the two-dimensional array arranged to create a combined transmitter field of view that is larger than 5 the individual transmitter field of view, the plurality of optical transmitters arranged such that optical axes of the plurality of optical transmitters are evenly distributed within the combined transmitter field of view.

An electronic device comprises a housing configured to contact a user's skin, an optical transmitter array, an optical receiver, a memory element and a processing element. The optical transmitter array outputs a plurality of optical signals that pass through the user's skin, each of the plurality of optical signals having one of three wavelengths. The optical receiver receives the optical signals and generates corresponding photoplethysmogram (PPG) signals. The memory element stores absorption constants for deoxyhemoglobin blood content, oxyhemoglobin blood content and glycated hemoglobin blood content, each absorption constant associated with one of the first wavelength, the second wavelength or the third wavelength. The processing element determines a glycated hemoglobin blood level for the user based on a ratio of a determined glycated hemoglobin blood content to a sum of determined deoxyhemoglobin blood content, a determined oxyhemoglobin blood content and a determined glycated hemoglobin blood content.

A laser assembly (12) of a system (10) includes a first emitter assembly (30a), a second emitter assembly (30b), and a combiner lens (34). The first emitter assembly (30a) generates a first emitter beam (22a) that is directed along a first emitter axis (32a) at a beam intersection area (31). The second emitter assembly (30b) generates a second emitter beam (22b) that is directed along a second emitter axis (32b) at the beam intersection area (31). The combiner lens (34) receives and spatially combines the first emitter beam (22a) and the second emitter beam (22b) after the emitter beams (22a) (22b) have intersected at and passed through the beam intersection area (31). The laser assembly (12) includes a laser frame (18); an emitter array (20) that generates a plurality of emitter beams (22); a combiner lens assembly (24) that transforms and combines the plurality of emitter beams (22) into the assembly output beam (14); and a system controller (26) that controls the operation of the laser assembly (12). The combiner lens assembly (24) including combiner lenses (34, 36, 38) has a fast axis, front side focal point (24a), and a fast axis and slow axis, rear side focal point (24b). It is positioned so that its fast axis front side focal point (24a) is approximately at the beam intersection area (31). The optical fiber (16) is positioned so that its inlet facet (16A) is approximately at the fast axis and slow axis, rear side focal point (24b).

The utility model relates to the technical field of decorative paper drying, in particular to decorative paper gum dipping and drying equipment which comprises a shell, a hot air circulation mechanism is arranged in the shell and comprises an air injection cylinder, and a recovery air cylinder is fixedly arranged on the outer side of the air injection cylinder through an air injection pipe; a second arc-shaped recovery baffle is fixedly arranged on one side of the recovery tank, and a first arc-shaped recovery baffle is fixedly arranged on one side, corresponding to the air spraying pipe, of the surface of the recovery air cylinder; and through the synergistic effect of the hot air circulation mechanism and the microwave emitter array, rapid drying of the decorative paper is achieved. The hot air circulating system can efficiently utilize hot air and reduce heat waste, meanwhile, microwave-assisted drying can further accelerate evaporation of moisture, the drying time is remarkably shortened, and the production efficiency is improved.

An x-ray imaging apparatus 10 comprising a support 30 having two arms, wherein on one arm an x-ray emitter 50 is arranged, and on the other arm a flat panel digital detector 60 is arranged, the emitter and detector arranged opposite each other providing a space therebetween for the positioning of an object for x-ray imaging by the apparatus, the x-ray emitter comprising an array of emitters, the apparatus arranged such that in use different emitters are energisable independently from one another such that 3-dimensional tomosynthesis images are obtainable of the object, with the object, emitter and detector maintained stationary relative to one another.

A luminaire includes a first array light engine, a second array light engine, and a control system. The first array light engine includes a plurality of light emitters and first and second lens arrays, each with pluralities of lenslets. Collimation of light rays from the first array light engine varies as the second lens array moves relative to the first lens array. The second array light engine has a linear array of light emitters and a linear lens. Collimation of light rays from the linear lens varies as the linear lens moves relative to the linear array of light emitters. The control system controls a beam angle of the light rays from the first array light engine by moving the second lens array and controls a beam angle of the light rays from the linear lens by moving the linear lens.

This invention relates to the field of relay protection technology and discloses a method and device for identifying the status of a station-end relay protection pressure plate. By measuring the geometric parameters of the pressure plate and setting a virtual baseline, a miniature optical signal transmitting unit (single transmitter or coded transmitter array) and a receiving unit are deployed on the baseline. For a single transmitter scenario, the basic status of the pressure plate is identified by whether the beam is reflected. For a coded transmitter array, a grouped timing transmission strategy is used to obtain multi-dimensional features of the reflected optical signal. After fidelity verification, encoding decoding mapping, and vector calibration, the rotation angle of the pressure plate is determined, achieving multi-level status determination. This invention solves the technical bottlenecks of poor real-time performance, high image processing costs, and complex maintenance of traditional manual inspections and magnetic methods through non-contact photoelectric detection technology, achieving high-precision, real-time, and stable monitoring of the pressure plate status.

A spatial light modulation (SLM) device includes one or more light inputs; one or more light outputs; a plurality of waveguides arranged in an array of receivers and / or transmitters, wherein each waveguide is coupled to one or more light inputs; and at least one light modulation element for modulating light passing through at least one of the plurality of waveguides. Wherein the waveguide and the light modulation element are integrated in at least one common module, and one of the light input or the light output is connected with a free space area occupied by a vacuum, gas, liquid and / or solid medium part.

The microwave plasma reactor 1 of the present invention comprises a plasma chamber 2, a work holder 6, a gas flow system, one or more microwave generators, and a microwave emitter 10, each of which comprises an amplifier, a phase shifter, and a radiating element. Each microwave emitter 10 is connected to at least one of the one or more microwave generators, and the radiating elements of the multiple microwave emitters 10 are mounted in the plasma chamber 2. The microwave plasma reactor 1 further comprises one or more microwave absorbing units 11, each of which comprises an absorbing element, and the absorbing elements of one or more microwave absorbing units 11 are mounted in the plasma chamber 2. Furthermore, the microwave plasma reactor 1 comprises an emitter control unit adapted to individually control the amplification of the amplifiers and the phase shift of the phase shifter for each or most of the microwave emitters 10, and to generate microwave output from the emitter array to one or more desired locations in the plasma chamber 2 in a desired distribution. In a further aspect of the present invention, a method is provided for plasma processing a workpiece 7, such as a substrate / wafer, using such a microwave plasma reactor 1.

A laser assisted bonding device includes: a laser emitter array having a plurality of laser emitter units, wherein each of the laser emitter units is operable to be turned on or off independently from the other laser emitter units such that the laser emitter array is capable of emitting a laser beam with a controllable beam shape; a carrier for placing a substrate which an electronic component is disposed on and to be bonded onto via a solder material; a transfer mechanism for moving the laser emitter array relative to the carrier; and a controller electronically coupled to the transfer mechanism to control a movement of the laser emitter array relative to the carrier, and electronically coupled to the laser emitter array to irradiate the laser beam to the substrate with a controllable power profile for the solder material when the electronic component is bonded onto the substrate.

In chest imaging it is important to only image the lungs without exposing the thyroid gland or the abdominal organs, so the width of the X-ray beam is restricted so that the projection area matches the size of the lungs of each individual patient. For 2D X-ray systems and traditional computed tomography systems there is only one X-ray emission point so it is easy to use a conventional collimator box. However, when using stationary multi-emitter arrays, using lots of conventional collimator boxes would get in the way of neighbouring X-ray beams. The present invention uses a pair of sliding plates 41, 43 with matching holes 45 therein, such that apertures 47 of variable size are formed for each X-ray emitter.

A wireless power delivery system includes, in part, a roaming and articulating wireless power transfer device. The roaming and articulating wireless power device includes, in part, a wireless power generation unit, an energy storage unit, a controller, and an electrically driven moving platform. The device further includes, in part, at least one RF transmitter or an array of RF transmitters adapted to radiate RF signals at the same frequency. The controller is adapted to control the phase of each RF transmitter independently. The array of RF transmitters may be foldable and expandable. The moving platform may include an inertia measurement, a GPS, bump sensors and proximity sensors. The device may further include a camera, and a wireless communication link via which the device establishes a two-way communication with a recovery unit being wirelessly powered.

A Light Detection and Ranging (LIDAR) apparatus includes an optical aperture, an emitter array including emitter elements arranged and configured to output optical signals through respective sub-regions of the optical aperture to illuminate respective portions of a field of view, and an optical element in at least a portion of the optical path of the optical signals. The optical element is configured to divert a first subset of the optical signals away from the respective portions of the field of view without substantially altering a second subset of the optical signals. Related optical elements and methods of fabrication are also discussed.

A system includes a housing and a light emission source positioned within the housing and including a first light emitter array characterized by a first polarization state and a second light emitter array characterized by a second polarization state. The light emitted by the light emission source is configured to propagate along an optical axis. The system also includes a lens positioned within the housing along the optical axis and a wavefront modification element positioned within the housing along the optical axis. The wavefront modification element comprises a polarization-sensitive diffractive structure.

The invention provides a light detection device and a detection method. The light detection device comprises a light emitter array, a light detector array and a control module. The light emitter array comprises a plurality of light emitters; the light emitter is configured to output an emission signal; the optical detector array comprises a plurality of optical detectors; the light detector is configured to detect an echo signal reflected after the emission signal encounters an obstacle; wherein the light emitter array and the light detector array form a plurality of detection channels, and each detection channel comprises at least one light emitter and at least one light detector. In the one-time signal transmission process from transmitting the transmitting signals to detecting the corresponding echo signals, the control module selects the preset light emitters to emit light at the same time, the view fields of the light emitters emitting light at the same time are not overlapped within the detection distance, and crosstalk between detection channels is effectively reduced.

The invention belongs to the technical field of sewage treatment, and discloses a sediment thickness detection method and system for a sewage sedimentation tank, and the method comprises the steps: transmitting a laser beam through a laser transmitter array, collecting the intensity of an optical signal received by each laser receiver, and carrying out the smoothing treatment to obtain the intensity of a smooth signal; according to the smooth signal intensity of a laser receiver located in a clear liquid area of the sedimentation tank, identifying signal attenuation caused by accumulation of a dirt film on the surface of the optical device, and compensating all the smooth signal intensity to obtain compensated smooth signal intensity; according to the compensated smooth signal intensity, determining a scattering ratio and a signal intensity volatility index of each laser receiver; according to the main signal intensity, the scattering ratio and the signal intensity volatility index, the type of a water body medium layer through which each laser beam passes currently is judged; determining the thickness of the sediment according to the judgment result, and performing alarm control according to the thickness of the sediment; therefore, the accuracy of detection results is improved.

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.

This invention relates to a method and device for fabricating a curved cold cathode X-ray source, achieving better process compatibility, more precise curvature, and a more precise and compact structure. The fabricated curved cold cathode X-ray source includes: a curved anode substrate, a curved cathode substrate, and an insulating isolator; the curved anode substrate includes a curved anode base and a metal anode target disposed on the curved anode substrate; the curved cathode substrate includes a curved cathode base, a cathode electrode disposed on the curved cathode base, a cold cathode emitter array disposed on the cathode electrode, an insulating layer, and a gate electrode disposed on the insulating layer; the metal anode target is fixedly connected to one side of the insulating isolator, and the cathode electrode is fixedly connected to the other side of the insulating isolator.

The invention discloses an intelligent closestool with a deodorization function. The intelligent closestool comprises a closestool body, a first deodorization mechanism, a second deodorization mechanism, a directional driving mechanism and a controller, according to the odor concentration, obtained by the odor concentration detector, in the pit slot cavity, the flushing mode is dynamically adjusted through the drainage valve; the first deodorization mechanism comprises an atomizer, a stirring assembly and a PH control assembly, and the atomizer is connected with the discharge end of the air suction channel; the directional driver comprises a sound wave emitter array and a sound field control module which are arranged along the inner side of the toilet seat, the sound wave emitter array emits directional sound waves to the odor according to the odor concentration detector and pushes the odor into the odor suction port, and the sound field control module is used for controlling sound wave radiation thrust. The exhaust cleanliness can be greatly improved, the flushing mode is dynamically adjusted through the odor concentration detector, mute, standard or powerful flushing is matched in different concentration intervals, and the deodorization effect is improved.

A bonded optical device is disclosed. The bonded optical device can include a first optical element, a second optical element, and an optical pathway. The first optical element has a first array of optical emitters configured to emit light of a first color. The first optical element is bonded to at least one processor element, the at least one processor element including active circuitry configured to control operation of the first optical element. The second optical element has a second array of optical emitters configured to emit light of a second color different from the first color. The second optical element is bonded to the at least one processor element. The optical pathway is optically coupled with the first and second optical elements. The optical pathway is configured to transmit a superposition of light from the first and second optical emitters to an optical output to be viewed by users.

An optical system may comprise an emitter assembly and an optical structure that are configured to be used with a lighting device for providing a narrow beam angle for the lighting device. The emitter assembly may comprise an array of emitters configured to emit light. The optical structure may comprise a body having a light-entry portion, a light-exit portion, and side wall extending between the light-entry portion and the light-exit portion. The side wall of the optical structure may define a total internal reflection (TIR) surface. The light-exit portion may comprise a front surface and an octagon-shaped well formed into the front surface. The octagon-shaped well may have a center surface surrounded by a beveled portion configured to refract light that is reflected off of the TIR surface towards a central axis of the optical system, such that light rays that are transmitted from the light-exit portion are substantially collimated.

A lighting assembly (1) of a portable device (2) is described, comprising an array (11) of semiconductor emitters (11E) and an imaging lens (10) arranged above the array (11) of emitters and adapted to direct light from each emitter (11E) into a respective region (11E 图像 ) of a target area (T); characterized in that the imaging lens (10) comprises a surface pattern (10S) adapted to shape light from adjacent emitters (11E) so that the respective imaged emitter regions (11E 图像 ) overlap at the target area (T). A method of manufacturing such a lighting assembly (1) is also described, as well as a portable device (2) comprising such a lighting assembly (1).

An optoelectronic apparatus includes a semiconductor substrate and multiple arrays of emitters disposed on the semiconductor substrate and configured to emit beams of optical radiation. An optical substrate is mounted over the semiconductor substrate. An optical metasurface disposed on the optical substrate includes multiple optical apertures. Each aperture is configured to receive, collimate and split the beams emitted by a respective array of the emitters into a respective group of collimated sub-beams, so as to direct the collimated sub-beams toward a target at different, respective angles to form a pattern of spots on the target.

A spatial light modulating (SLM) device comprising one or more light inputs; one or more light outputs; a plurality of waveguides arranged in an array of receivers and / or emitters, wherein each waveguide is coupled to one or more light inputs; and at least one light modulating element for modulating light passing through at least one of the plurality of waveguides. Wherein the waveguides and the light modulating element are integrated in at least one common module, wherein one of the light inputs or light outputs interfaces with a free space region partially occupied by a vacuum, a gas, a liquid and / or a solid medium.

An optical system may include an emitter assembly and an optical structure configured for use with a lighting device to provide a narrow beam angle of the lighting device. The emitter assembly may include an array of emitters configured to emit light. The optical structure may include a body having a light inlet portion, a light outlet portion, and a sidewall extending between the light inlet portion and the light outlet portion. The sidewalls of the optical structure may define a total internal reflection (TIR) surface. The light exit portion may include a front surface and an octagonal shaped well formed in the front surface. The octagonal shaped well may have a central surface surrounded by a beveled portion configured to refract light reflected from the TIR surface toward a central axis of the optical system such that light rays transmitted from the light exit portion are substantially collimated.

In some implementations, an optical system includes an emitter array including a plurality of emitters. The plurality of emitters are arranged in a plurality of channels and the emitter array is configured to illuminate on a per-channel basis. Respective positions of emitters, of the plurality of emitters, of a channel, of the plurality of channels, vary across a width of the channel. The optical system includes a lens to receive light from the emitter array and a diffuser to receive light from the lens. The diffuser is configured to diffuse light along a length of the plurality of channels of the emitter array. The optical system includes a corrective optical element to receive light from the diffuser.

The present disclosure provides a device for injectable delivery of microparticles to a patient, the device being fluidly connectable to a source of an injectable medium, The delivery device includes: a receptacle connectable to receive an initial dosage of microparticles; an array of signal emitters positioned adjacent to the receptacle and configured to direct a signal at the microparticles held within the receptacle of the delivery device; an array of signal detectors positioned adjacent to the receptacle and configured to detect the signal from the array of signal emitters that has interacted with the microparticles; and, a control system connected to the array of signal detectors and configured to determine a delivered dosage of microparticles based on the detected signal. In some embodiments the delivery device further comprises one or more valves connected to be actuated by the control system, and positioned along a flow path for the injectable medium to stop the flow of microparticles once a target dosage has been delivered.

In a light emitter device, when point emitters are placed on a focal plane of a lens system, each point emitter will point to a specific free space angle depending on its position relative to a longitudinal center axis of the lens system. A plurality of point emitters is arranged in an array comprising a plurality of rows of point emitters and a plurality of columns of point emitters. Each of the plurality of point emitters comprises a grating coupler configured to emit a respective light beam in a respective transmission direction. Each grating coupler comprises a plurality of periodically spaced first optical waveguide grating structures, at least some of the optical waveguide grating structures comprising a notch, whereby a first portion of each optical waveguide grating structure extends to a different height compared to a second portion.