46 results about "Optical arrays" patented technology

A surgically implanted ocular optical array that can be used in both therapeutic and diagnostic applications is described. A device configured to be implanted in an eye includes: an imaging system that receives visible light incoming to the eye; optical source generating circuitry that generates an optical signal based on the light received by the imaging system; and an optical phased array (OPA) that generates and projects an image onto a retina of the eye in which the device is implanted, the image being based on the optical signal generated by the optical source generating circuitry.

Described are embodiments of a multi-layer giga-pixel plenoptic camera that enable three-dimensional (3D) light-field imaging, high resolution and large field-of-view. In embodiments, the camera includes a radiation conversion array layer, an optics array layer, a complementary metal-oxide-semiconductor (CMOS) image sensor array layer, and a memory layer. Depending on the embodiment, the sequence of the radiation conversion array layer and the optics array layer may be reversed, and / or additional isolation layers may be provided between some of the layers. Applications can span the visible light spectrum, and can include ultraviolet (UV) and infrared (IR) spectra. In an embodiment, applications can span x-ray spectra and gamma ray spectra. Radiation converters in the radiation conversion array layer can be filters or scintillation converters. Optics in the optics array layer can be lenses or pinholes and / or coded apertures.

A system for aligning optical signals for optical networking includes a light station, a collimator element corresponding to the light station, a steering array including a steering element corresponding to the light station, and a set of optical transfer elements. The set of optical transfer elements is positioned between the steering array and the light station. The set of optical transfer elements forms a light image from a first plane positioned at a first location onto a second plane positioned at a second location.

A laser detection assembly (21), a laser radar receiving system, and a laser radar system. The laser detection assembly (21) comprises a plurality of detector arrays and optical array structures, wherein the plurality of detector arrays have one-to-one correspondence to the optical array structures. The optical array structures comprise a plurality of light-transmissive units, wherein each light-transmissive unit corresponds to one detector array, each detector array corresponds to one detection channel, and each detection channel is used for receiving an echo optical signal of a sub-field of view. Every two adjacent light-transmissive units are separated by a light-shielding unit, and when the echo optical signal of one sub-field of view is incident to a detector array through a corresponding light-transmissive unit, the light-shielding unit can absorb part of an optical signal reflected by the detector array, so as to block such part of optical signal from re-entering other detection channels from a receiving lens, thereby reducing the optical signal crosstalk between the detection channels, and improving the detection precision of a laser radar.

The invention provides an atmospheric turbulence-compensation system configurable as: receiver, transmitter, transceiver comprising a first optical array, a phase-shift modulator, a light-wave combiner, and a control system, wherein: (I) the first optical array is configured to receive and provide optical signals (II) the phase-shift modulator alters the optical signals to modified optical signals in dependence of phase-shift correction signals; (III) the light-wave combiner is configured to combine the modified optical signals and provide an electrical output signal; and (IV) the control system is configured to compensate for atmospheric disturbances by providing phase-shift correction signals based on the electrical output signal.

The present disclosure provides a phase configuration method and electronic equipment, which relates to the technical field of communication, obtains a discrete point set corresponding to a phase interval of a first optical MZI array system, calibrates a first phase set obtained according to the discrete point set by using a test optical signal corresponding to the first optical MZI array system, adjusts each phase in the first optical MZI array system by using a second phase set, obtains a second optical MZI array system, and the second phase set includes at least one phase to be adjusted in the calibrated first phase set; obtains an optimal phase configuration corresponding to the second optical MZI array system according to a first output light intensity of each port in the second optical MZI array system under a continuous phase condition and a heuristic algorithm, and configures the phase of the second optical MZI array system by using the optimal phase configuration. The pre-calibration operation can be reduced, the power consumption can be reduced, the expressiveness and robustness of the system can be improved, the accuracy of the phase configuration can be improved, and resources can be saved.

Disclosed is a phase detection device using phase shifting, the device including a geometric phase optical element. According to one aspect of the present embodiment, provided is a phase detection device characterized by comprising an optical mask for phase-shifting object light and reference light having different circular polarizations and generated through an interferometer, wherein the optical mask comprises: an optical array including geometric phase optical pixels that phase-delay the object light and the reference light by twice a predetermined optical axis rotation angle; and a circular polarization beam splitter which is configured to transmit some of circular polarization component transmitted through the optical array.

The invention discloses a hundred-million-pixel multi-scene dynamic image acquisition method and device, equipment and a storage medium, and the method comprises the steps: a dynamic polarization modulation module generates phase retardation according to the intensity of a modulation electric field, and adjusts the polarization state of an incident light path to suppress the multi-path interference; the pulse synchronization controller generates a trigger period according to the time change and the space gradient of the scene light intensity, and controls exposure synchronization; and by combining the two parameters, the multi-lens optical array is accurately regulated and controlled to acquire images, and finally a hundred-million-pixel-level high-definition image is generated. According to the method, through real-time polarization adjustment and intelligent exposure control, low-distortion and real-time high-definition imaging in multiple scenes is realized, and quality and speed requirements in a dynamic environment are effectively balanced.

The invention discloses a high-isolation integrated optical array chip and a manufacturing method thereof. The manufacturing method comprises the following steps: dividing a substrate into a plurality of optical unit regions and isolation channel regions; forming an isolation groove in the isolation channel region on the substrate; photoetching a pattern of an optical isolation layer in the isolation channel region, and forming the optical isolation layer at the bottom and on the side wall of the isolation channel by adopting a proton exchange or metal ion diffusion process; and photoetching a pattern of an isolation metal layer in the isolation channel region, and forming the isolation metal layer on the optical isolation layer by depositing a metal film layer. According to the invention, the isolation channels formed by the optical isolation layers and the isolation metal layers can absorb radiation modes generated by the integrated optical waveguides in the adjacent integrated optical units, and absorb and attenuate radiation electric signals of the metal electrodes in the integrated optical units. Therefore, the crosstalk of optical signals and radiation electric signals among the integrated optical units in the integrated optical array chip is greatly reduced; a higher degree of isolation between integrated optical units is achieved.

An arrayed waveguide grating device includes an input coupler configured to receive a light signal and split the light signal into a plurality of output light signals. The device also includes a plurality of waveguides optically connected to the input coupler, each waveguide having a plurality of waveguide portions having respective sensitivities to variance in one or more parameters associated with operating of the optical arrayed grating device. Lengths of the respective portions are determined such that each waveguide applies a respective phase shift to the output light signal that propagates through the waveguide and the plurality of waveguides have at least substantially same change in phase shift with respective changes in the one or more parameters associated with operation of the device. An output coupler is optically connected to the plurality of waveguides to map respective light signals output from the plurality of waveguides to respective focal positions.

A lighting element (200), comprising a light source (210) for emitting a first beam of light having a wavelength within a first wavelength range; a converting material arranged in a phosphor layer (220) such that the light beam is incident on the converting material, wherein the converting material emits a second light beam with wavelengths within a second wavelength range, the second wavelength range being different from the first wavelength range and having wavelengths from 500 nm to 650 nm; and a dielectric aperiodic array (120) arranged on the phosphor layer (220), wherein the dielectric aperiodic array (120) comprises a plurality of dielectric scattering columns (100) that are smaller than the wavelength of the light and are arranged to form an aperiodic pattern, and wherein the dielectric aperiodic array (120) is configured to produce an azimuthal isotropic scattering of the incident luminescence within a limited angular cone (1207) such that more than 85% of the total generated light emission is emitted into an angular cone of ± 60°, wherein the angular cone of ± 60° corresponds to an angular cone into which the phosphor layer (220) emits 75% of the total generated light emission, and wherein the phosphor layer (220) is unstructured and optically thick.

The application discloses a chip structure based on vertical interconnection and a preparation method thereof. The chip structure comprises at least two layers of circuit structures. Each layer of the circuit structure comprises a heterogeneous circuit module and an optical array. The optical array comprises a light emitting element and a light receiving element. The optical arrays of adjacent layers transmit optical signals through optical connection channels. The heterogeneous circuit modules of adjacent layers transmit electrical signals through electrical connection channels. The heterogeneous circuit modules or the optical arrays of the same layer are electrically connected. The light emitting element is used for converting optical signals into electrical signals. The light receiving element is used for converting electrical signals into optical signals. The embodiment of the application has strong anti-interference capability, can improve transmission rate and transmission capacity, and can be widely applied to the technical field of chip manufacturing.

The application discloses a kind of multi-form nonmetallic substance analysis method and system, belong to terahertz substance measuring instrument technical field.The application is output by microwave excitation signal generation unit local oscillator signal and radio frequency signal;Terahertz signal generation array is handled to local oscillator signal and radio frequency signal, generates terahertz signal;Terahertz signal is focused to terahertz signal detection array by optical array with reflected signal and transmission signal;Computer is acquired by multichannel data acquisition unit and is analyzed with transmission signal and reflected signal of the sample to be measured.Can realize the organic fusion of substance three-dimensional structure and component analysis, satisfy the test demand of multi-form nonmetallic substance performance evaluation;Solved the problem that " cannot satisfy the test demand of multi-form nonmetallic substance performance evaluation " in prior art.

The invention discloses an eye box measuring device and an eye box measuring method. The eye box measuring device comprises an optical array structure and a detection assembly. The optical array structure comprises a plurality of optical structures, the detection assembly comprises a detection sensor, the detection sensor comprises a plurality of pixel units, the plurality of pixel units are divided into a plurality of detection areas, each detection area comprises at least two pixel units, and the plurality of optical structures and the plurality of detection areas are arranged in a one-to-one correspondence manner; and the detection area is configured to receive image information imaged by the correspondingly arranged optical structures. Therefore, the detection assembly can obtain multiple pieces of image information at a time, the eye box boundary of the to-be-detected display device can be quickly and efficiently confirmed, and then the size of the eye box is confirmed.

A sample-and-hold readout system and method for ramp analog-to-digital conversion is presented in which an optical array is read out using sample-and-hold circuitry such that each sample is used to charge a sample-and-hold capacitor, and an amplifier readout driving the ramp analog-to-digital converter is used during a hold phase. The sample-and-hold circuit transitions to a tracking phase in which the optical array input drives an amplifier that drives a sample-and-hold capacitor, and then transitions to a sampling phase in which the sample-and-hold capacitor is directly connected to the optical array output.

The invention relates to the field of head-mounted display devices, in particular to a control method of a display unit, a head-mounted display device and a storage medium. The method is applied to a head-mounted display device, a display unit of the head-mounted display device comprises a metasurface optical array and a grating displacement platform, and the method comprises the following steps: acquiring eye image information and eye muscle information of a user of the head-mounted display device; based on the eye image information and the eye muscle information, predicting a focal length compensation value at a target moment and a target curvature of a metasurface optical array; and based on the focal length compensation value and the target curvature, driving the metasurface optical array, and driving the grating to move.

This invention discloses a robot-assisted electrocoagulation hemostasis system, comprising: an image processing module for acquiring preoperative and intraoperative three-dimensional images of the patient's affected area and performing registration; an optical tracking module for acquiring the poses of the patient's optical array, the registered optical array, and the tool's optical array; a navigation registration module for performing navigation registration based on the registration and the poses of each optical array to obtain the positional relationship between the preoperative image and the patient's optical array; an image processing module for acquiring images obtained by endoscopy, identifying and acquiring bleeding points and their corresponding bleeding times; and a planning and execution module for planning the target pose of the robotic arm and the electrocoagulation tool mounted at its end based on telecentric fixed point constraints, and executing accordingly. This invention, through automatic robot navigation control, quickly and accurately guides the system to the bleeding point, reducing the surgeon's workload and avoiding efficiency issues caused by unfamiliar human operation.

The present invention relates to a laser tool head comprising an optical array which comprises, in sequence, a focusing lens, an axial mirror, and an intersector mirror, wherein the focusing lens and axial mirror are sequentially positioned substantially along a pivot axis, the intersector mirror is positioned at a distance away from the pivot axis and is angled to reflect laser received from the axial mirror to intersect with the pivot axis at an intersection point that is a selected distance therealong. The focusing lens and the axial mirror rotate about the pivot axis without substantial lateral movement relative thereto, while the intersector mirror travels in a concentric arc relative thereto.

The invention discloses a miniaturized three-axis optical fiber gyroscope optical path which comprises a micro-optical array module and a plurality of optical fiber interferometer modules, and the micro-optical array module and the optical fiber interferometer modules are connected through mode filtering optical fibers with a certain length. The micro-optical array module is composed of a semiconductor light-emitting chip, four microcrystal lenses with different functions and three PD light detection chips made of InGaAs materials. The optical fiber interferometer module is composed of a Y waveguide, an optical fiber ring connected with the Y waveguide, and an optical fiber ring packaging structural member. According to the design, through overall arrangement of the micro-optical array, the optical path loss of light output by the semiconductor light-emitting chip to each PD optical detection chip is about 17dB and is lower than that of a single-axis optical path, and the signal-to-noise ratio of the three-axis integrated fiber-optic gyroscope can be improved. And under the same signal-to-noise ratio requirement, the requirements on the efficiency of the semiconductor light-emitting chip and the light source driving current are also relaxed, and the optical fiber light path design of the three-axis gyroscope can be realized by using the conventional light source parameters of the current single-axis light path.

An optical switching array having multiple cells of MEMs optical switching units and methods of fabricating the array is disclosed. The switching unit includes a spacer structure having an enclosed light cavity. The light cavity is defined by a first end structure, a second end structure, and side structures each attached between the first and second end structure. A first input optical fiber array is attached to a top surface over the light cavity in proximity to the first end structure. A first mirror array is attached to a bottom surface over the light cavity in proximity to the first end structure. A second mirror array is attached to the top surface over the light cavity in proximity to the second end structure. An output optical fiber array is attached to the bottom surface over the light cavity in proximity to the second end structure.

Provided is an inspection device including: a light source generating and outputting a femtosecond laser beam; a beam splitter configured to split the femtosecond laser beam into a first light and a second light; a first optical array configured to separate the first light into a first sub-light and a second sub-light and to provide the first and the second sub-lights to an inspection target, wherein the first sub-light and the second sub-light are polarized in different directions; a microprobe configured to detect a photoelectric signal caused by incidence of the first and the second sub-lights on the inspection target, the microprobe including a first microprobe configured to detect the first sub-light and a second microprobe configured to detect the second sub-light; and a second optical array configured to provide the second light to the microprobe.

The invention discloses a high-flux wide-spectrum microscopic diffuse reflection illumination system, which comprises a multiband LED (Light Emitting Diode) light emitting module, an aspheric collimating lens group, a beam combining optical array, an achromatic lens and an output multimode optical fiber, and is characterized in that the multiband LED light emitting module comprises at least three high-power LED units with complementary central wavelengths; the aspheric collimating lens group converts divergent light beams of the LED unit into collimated light beams, the beam combining optical array realizes spatial coaxiality of all the collimated light beams through the dichroscope and combines the collimated light beams into composite full-spectrum collimated light beams, and the achromatic lens focuses the composite full-spectrum collimated light beams on the same focal plane. And the output multimode optical fiber receives the focused composite full-spectrum collimated light beam and serves as a cold light source input end of the microspectrometer. An LED pure cold light source is adopted, infrared heat radiation is avoided, and sample heat damage and catalyst inactivation can be avoided; meanwhile, aspherical collimation, dichroscope beam combination and achromatic coupling are adopted, and high-power output of the wave band of 380-830 nm is achieved.

The invention provides a composite reflecting layer structure optical array and a preparation method thereof. The optical array comprises a crystal array and a composite reflecting layer structure, the crystal array is formed by regularly arranging a plurality of polished crystal strips according to an N * M rectangular array, and the composite reflecting layer structure comprises a barium sulfate inner reflecting layer filled in gaps of the crystal strips and an ESR outer reflecting layer wrapping the peripheral surface of an array block. The two ends of the array support single-end or double-end light reading, and the array can be adaptively coupled with various photoelectric conversion components such as photomultipliers and silicon photomultipliers. The preparation method comprises the steps of crystal processing and arranging, inner reflecting layer forming, outer reflecting layer packaging and end face coupling. Through the synergistic effect of the composite reflecting layers, the light output efficiency is improved by more than 15% compared with that of a traditional ESR array, the inter-channel optical crosstalk is reduced to 3.2%, the adaptability is wide, the cost is low, and the ESR array can be widely applied to precise optical systems such as optical imaging, optical sensing and optical transmission.

The invention provides a phase configuration method and electronic equipment, and relates to the technical field of communication, and the method comprises the steps: obtaining a discrete point set corresponding to a phase interval of a first optical MZI array system, and carrying out the calibration of a first phase set obtained according to the discrete point set through employing a test optical signal corresponding to the first optical MZI array system, a second phase set is adopted to adjust each phase in the first optical MZI array system, a second optical MZI array system is obtained, and the second phase set comprises at least one phase to be adjusted in the calibrated first phase set; and obtaining the optimal phase configuration corresponding to the second optical MZI array system according to the first output light intensity of each port in the second optical MZI array system under the continuous phase condition and a heuristic algorithm, and performing phase configuration on the second optical MZI array system by adopting the optimal phase configuration. The pre-calibration operation can be reduced, the power consumption can be reduced, the expressivity and robustness of the system can be improved, the accuracy of phase configuration is improved, and resources are saved.

The present invention relates to a medical device for debridement of wounds, such as chronic wounds. The device comprising an end effector mounted on a robotic arm, wherein a control unit control the operation and movement of the end effector. The end effector comprises a fluid dispensing system comprising at least a nozzle for dispensing a jet of fluid onto a surface to be treated, a debridement light source for emitting a light beam onto the surface to be treated, a distance sensor for measuring the distance from the end effector to the surface to be treated, and an optical array comprising at least a colour camera for capturing images of the wound area in visible wavelengths.

The invention belongs to the technical field of vehicle lamps, and particularly relates to a vehicle lamp and a vehicle using the same. The vehicle lamp at least comprises a light source assembly and an inner mirror assembly arranged on the light emitting side of the light source assembly; the inner lens assembly at least comprises a first inner lens and a second inner lens which are sequentially arranged in the light emitting direction. Wherein the light-emitting surface of the first inner lens is provided with patterns cut from multiple surfaces, and the patterns are used for primarily refracting and scattering light rays emitted by the light source assembly; a crystal surface and a micro optical array are arranged on one outer surface of the second inner lens; the micro optical array comprises a plurality of micro optical structures which are formed on the crystal surface and are continuously arranged; light emitted by the light source assembly is refracted by the first inner lens to form scattered light, the scattered light is spread in the second inner lens, and after transmission, refraction, total reflection and / or diffraction of the micro optical array, an ordered patterned light effect is formed in the second inner lens and on the light emitting surface of the second inner lens.

A sample-and-hold readout system and method for ramp analog-to-digital conversion is presented, in which a sample-and-hold circuit is used to read out an optical array such that each sample is used to charge a sample-and-hold capacitor and is read out during a hold phase using an amplifier driving a ramp analog-to-digital converter. The sample-and-hold circuit transitions to a track phase in which an optical array input drives the amplifier, which drives the sample-and-hold capacitor, and then transitions to a sample phase in which the sample-and-hold capacitor is directly connected to an optical array output.

An ultra-photonic engine includes a plurality of light source modules, a collimating and folding module, and a light combining ultra-photonic element. Each light source module is configured to emit a light beam of a different wavelength. The collimating and folding module includes a plurality of collimating and folding ultra-photonic elements, each configured to collimate and fold the light beam of the light source module to a same predetermined location. The light combining ultra-photonic element is located on a side of the collimating and folding module opposite the light source modules and includes a light combining ultra-photonic array located at the predetermined location, configured to fold the collimated light beams by wavelength and angle of incidence to combine the collimated light beams of different directions into a same light beam of a same direction. By using precise semiconductor manufacturing processes to fabricate the ultra-photonic elements, the product size can be greatly reduced and the processing and assembly alignment precision can be greatly improved.

An arrayed waveguide grating device includes an input coupler configured to receive a light signal and split the light signal into a plurality of output light signals. The device also includes a plurality of waveguides optically connected to the input coupler, each waveguide having a plurality of waveguide portions having respective sensitivities to variance in one or more parameters associated with operating of the optical arrayed grating device. Lengths of the respective portions are determined such that each waveguide applies a respective phase shift to the output light signal that propagates through the waveguide and the plurality of waveguides have at least substantially same change in phase shift with respective changes in the one or more parameters associated with operation of the device. An output coupler is optically connected to the plurality of waveguides to map respective light signals output from the plurality of waveguides to respective focal positions.

An optical switching array having multiple cells of MEMs optical switching units and methods of fabricating the array is disclosed. The switching unit includes a spacer structure having an enclosed light cavity. The light cavity is defined by a first end structure, a second end structure, and side structures each attached between the first and second end structure. A first input optical fiber array is attached to a top surface over the light cavity in proximity to the first end structure. A first mirror array is attached to a bottom surface over the light cavity in proximity to the first end structure. A second mirror array is attached to the top surface over the light cavity in proximity to the second end structure. An output optical fiber array is attached to the bottom surface over the light cavity in proximity to the second end structure.