67 results about "Beam optics" patented technology

An optical computation system includes a light source configured to produce a pump beam, an optical modulator configured to modulate the pump beam based on the modulation mask to generate a modulated beam, a non-linear medium configured to convert a portion of the modulated beam to a second harmonic (SH) beam and to produce an output including the SH beam and an unconverted portion of the pump beam, and a dichroic mirror configured to receive the output of the non-linear medium and to decouple the SH beam and the unconverted portion of the pump beam, a detector configured to detect a first optical power of the unconverted portion of the pump beam and to detect a second optical power of the SH beam, and a controller configured to generate an updated modulation mask based on the first and second optical powers for transmission to the optical modulator.

The embodiment of the application relates to the technical field of optical equipment, and discloses an optical module and a manufacturing method of the optical module, the optical module comprising: a substrate; an active device arranged on the substrate, the active device being used for emitting and / or receiving a light beam; an optical element arranged on the active device in a covering mode; a support arranged on the substrate and surrounding the active device, the support being formed by injection molding; and a lens assembly arranged in a light path direction of the active device and fixedly connected with the support, the lens assembly being used for allowing the light beam to pass through, and an air gap existing between the lens assembly and the optical element. In the manner, the performance of the optical module can be ensured to be not affected.

The invention relates to a motor vehicle lighting device (30) comprising a housing which houses: a first module (31) for emitting a first light beam; a second module (32) for emitting a second light beam extending above the first light beam; a third module (33) for emitting a third segmented light beam extending above the second light beam; and an optical projection system (34); characterized in that the second module (32) is arranged below the first module (31); the third module (33) is arranged below the second module (32), and each of the modules comprises: a plurality of light sources; a light collector (32.11; 32.21) for collecting the light rays emitted by the plurality of light sources and reflecting them as a light beam; a portion (31.12, 31.22, 31.32, 32.12, 32.22, 33.12, 33.22, 33.32) of the optical projection system (34) arranged to project the light beam, said portion forming an image of the light collector (32.11, 32.21).

The invention provides a silicon grating coupler, a preparation method of a stack structure and electronic equipment, and relates to the technical field of optical communication. The silicon grating coupler comprises an optical waveguide, an optical fiber and a stack structure, the stack structure is arranged between the optical waveguide and the optical fiber; the stack structure comprises at least two optical film layers in the vertical direction perpendicular to the optical waveguide placement plane; an optical pattern is etched on the optical film layer; wherein the optical film layer adjusts the optical characteristics of an initial light beam emitted by the optical waveguide based on an optical pattern to obtain an adjusted light beam, and transmits the adjusted light beam to the optical fiber; the optical characteristics comprise at least one of the propagation direction, the divergence angle and the mode profile of the light beam. The optical film layer with the optical pattern is arranged on the stack structure of the rear metal interconnection layer, so that the propagation direction, the divergence angle, the mode profile and the like of the light beam emitted by the optical waveguide are adjusted through the stack structure, shaping and steering of the light beam are achieved, and the quality of the light beam is improved through a low-cost device structure.

The present invention provides an optical system comprising a plurality of transmissive and reflective elements arranged to transmit light of a unique wavelength from a source to an intended destination. The forward propagating beam follows a path through the transmissive elements and towards a droplet. The forward propagating beam is partially reflected on one or more of the transmissive elements and / or the droplet to form a return beam travelling along a path in a generally opposing direction to the forward propagating beam. The optical system further comprises is configured to estimate an amount of stray ghosting light in the return beam.

The invention provides a pulse laser system and a pulse laser drilling method. The pulse laser system comprises a transmitting module used for providing a pulse laser beam, the pulse width of the pulse laser beam ranges from 50 fs to 500 fs, the repetition frequency of the pulse laser beam ranges from 0.5 GHz to 10 GHz, and the pulse energy of the pulse laser beam ranges from 100 muJ to 1000 muJ; the light beam adjusting module is used for converting the pulse laser beam into a first modulated laser beam; an optical module for converting the first modulated laser beam into a second modulated laser beam; a scanning module for selectively projecting a second modulated laser beam in a projection direction; the focusing module is used for converting the second modulated laser beam into a flat-topped laser beam projected to a workpiece to be drilled; and the monitoring module is used for monitoring the drilling state of the workpiece to be drilled in real time. Therefore, the machining efficiency of the to-be-drilled workpiece can be improved, and meanwhile the damage rate of the to-be-drilled workpiece is reduced.

The present disclosure relates to a multi-focal head-up display (MHUD) system and method to solve a visual fatigue problem generated in a vehicle head-up display and implement an augmented reality (AR) function. The present disclosure provides a multi-focal augmented reality head-up display (MHUD) system including an image projector which generates and emits a plurality of beams, an optical device which guides the plurality of beams emitted from the image projector to individual paths, a polarization control device which controls polarization states of the plurality of beams incident from the optical device, and a plurality of holographic optical elements (HOEs) which receives the plurality of beams emitted from the polarization control device to project a virtual image plane at different focal distances.

The present invention relates to a computer-implemented method of controlling electron beam optics of an X-ray tube during X-ray kVp switching. The method includes receiving (110) a tube voltage (11) and a filament current (12) corresponding to a first time point of an X-ray tube kVp switching cycle; calculating (120) with an X-ray tube emission current model (310), a tube emission current (13) at the first time point, wherein the calculation is based on the tube voltage and the tube filament current; calculating (130) an electron beam focusing current and / or focusing voltage (14) based on the calculated tube emission current (13) and the tube voltage (11); and outputting (140) an electron beam optics control signal (15) based on the calculated electron beam focusing current and / or focusing voltage. The invention also relates to an X-ray imaging system (500) configured to carry out the method.

The invention provides a near-to-eye display system and equipment, and the system comprises an optical-mechanical structure which is used for emitting a display light beam, the optical-mechanical structure at least comprises two optical-mechanical parts which are arranged in an array manner in a first direction, each optical-mechanical part comprises a display branch and an optical modulation branch which are arranged in a second direction, the display branch is used for emitting an image light beam in the second direction, and the optical modulation branch is used for modulating the image light beam in the second direction; the optical modulation branch is used for modulating the image light beam to form modulated light beams, and the display light beam is a combined beam formed by the modulated light beams; the waveguide structure comprises a coupling-in part and a coupling-out part, the coupling-in part is used for coupling in the display light beam to form a coupling-in light beam, and the coupling-out part is used for coupling out the coupling-in light beam to form an imaging light beam; wherein the size of the light-emitting surface of the optical-mechanical part is smaller than that of the coupling-in part, and the first direction intersects with the second direction. Through the arrangement of the plurality of ray machine parts, the exit pupil of each ray machine is smaller, the back focal length can be correspondingly shortened on the basis of realizing the same imaging quality, and the size and the weight of the ray machine are greatly reduced.

A system includes a laser generating source, a downhole assembly, and a plurality of optical pathways extending between the laser generating source and the downhole assembly. The downhole assembly includes a tool housing, a plurality of reflectors, a plurality of reshaping lenses, and a main beam optical assembly. The reflectors are each movable between an activated position and a deactivated position, and are arranged to reflect energy beams radially outward away from the tool housing when in the activated position. The reshaping lenses are arranged to receive and redirect the energy beams when the reflectors are in the deactivated position. The main beam optical assembly is operable to combine the energy beams received from the reshaping lenses into a combined energy beam that is axially directed when the reflectors are in the deactivated position.

An optical antenna (300; 400; 71) and a communication terminal (70'). The optical antenna (300; 400; 71) comprises a first light source assembly (10) and an optical element (20); the first light source assembly (10) is used for emitting a first light beam towards the optical element (20); the optical element (20) comprises a reflection region used for reflecting the first light beam; the reflection region covers a central region of a first light spot formed by the first light beam on the optical element (20); the optical element (20) further comprises a transmission region used for transmitting a second light beam; and the second light beam is an external light beam. Alternatively, the optical antenna (300; 400; 71) further comprises a second light source assembly (40); the second light beam is a light beam emitted by the second light source assembly (40) towards the optical element (20); the energy distribution of the second light beam is different from that of the first light beam; the transmission region covers a central region of a second light spot formed by the second light beam on the optical element (20); and the optical element (20) is used for combining the first light beam and the second light beam by means of the reflection region and the transmission region. In this way, two light beams are combined by means of energy distribution, and light beam processing can be implemented without depending on the wavelength or polarization characteristics of a light source itself.

Provided in the present invention is an all-optical nonlinear activator based on dual-light-beam cavity field modulation, which can be applied to the technical field of optical computing. The activator comprises: an input end, an optical microcavity and an output end, wherein the input end is used for providing an input light beam; the optical microcavity is used for generating resonance, so as to excite and enhance an optical nonlinear effect; and the output end is used for outputting a nonlinearly modulated optical signal. Nonlinear modulation is performed on an optical field in the optical microcavity or on a transmission spectrum of the optical field in the optical microcavity by means of two coherent light beams having a phase difference, thereby forming nonlinear mapping between the light intensity of input light and the light intensity of output light, i.e., an all‑optical self-modulation process. An effective nonlinear operator is provided for all-optical computing, thereby accelerating the convergence of network training and inference, and improving the recognition accuracy of a model in different applications. Further provided in the present invention is an implementation method for the all-optical nonlinear activator based on dual-light-beam cavity field modulation.

A spectrum measurement device includes a scanning light receiver, an optical component, and a processor. The scanning light receiver, on a plane, receives a plurality of light beams of a display image sequentially according to a scanning operation to generate a plurality of input light beams sequentially. The optical component receives the input light beams sequentially and generates a plurality of pieces of processed information. The processor obtains luminance and chromaticity information of the display image according to the processed information.

The application is suitable for the technical field of optical devices, and provides an optical assembly, a laser and a laser processing device. The optical assembly comprises, in sequence along an outgoing light direction, a resonant cavity, an optical diffraction element, a frequency doubling crystal and a Q switch. The resonant cavity is used for emitting a light beam. The optical diffraction element is used for homogenizing the light beam. The frequency doubling crystal is used for modulating the frequency of the light beam. The Q switch is used for adjusting the direction of the light beam to control whether the light beam is emitted. The resonant cavity, the optical diffraction element, the frequency doubling crystal and the Q switch in the embodiment of the application are arranged in sequence along the outgoing light direction, so that the stability of the light beam emitted from the Q switch can be improved.

An apparatus for in vivo profiling a region of biological tissue to determine its state of mutation is provided. The apparatus includes a light source configured to generate at least one light beam, an optical arrangement configured to form the light beam into an optical probe beam for illuminating the region of biological tissue and receiving a Raman backscattered optical signal from the region of biological tissue, wherein the optical arrangement is further configured to filter the Raman backscattered optical signal to generate a filtered optical signal. The apparatus further comprises an optical detector configured to receive the filtered optical signal to generate a corresponding detector signal including one or more components indicative of one or more molecular species present in the region of biological tissue; and a data processing arrangement configured to process the detector signal to determine from the one or more components a concentration of the one or more molecular species to compute the state of mutation of the biological tissue.

The invention provides a light generating system (1000) comprising a first regular array (500) of solid state light sources (10) and an optical element arrangement (2000), wherein: (A) the first regular array (500) is an n*m array, wherein n ≥ 1 and m ≥ n; wherein n + m ≥ 4; wherein the first regular array (500) of solid state light sources (10) has a first pitch (p1) in a first direction; wherein the first regular array (500) of solid state light sources (10) is configured to generate a first beam (5) of light source light (11); (B) the optical element arrangement (2000) is configured in a light receiving relationship with the first regular array (500) of solid state light sources (10); wherein the optical element arrangement (2000) comprises k lens arrangements (400); wherein k ≥ 1; wherein each lens arrangement (400) comprises a plurality of lenses (30) arranged in a second array (600); wherein the plurality of lenses (30) in each lens arrangement (400) have an average center-to- center distance (d1); wherein p1 / d1 ≥ 1.4; and (C) the optical element arrangement (2000) is configured to one or more of (i) diffuse and (ii) shape the first beam (5) of light source light (11) into a second beam (6) of light source light (11).

A device for measuring caustic parameters of a laser beam includes a beam splitter for splitting the laser beam into at least three spatially separated partial beams, and a detection unit for detecting images of the partial beams. A beam path from an input of the device to the beam splitter defines a beam axis for the laser beam, along which the laser beam propagates until entering the beam splitter. The beam splitter includes an optical lens, and a partially reflective surface configured to split the laser beam into the at least three partial beams by partial reflection within the optical lens. The optical lens is positioned off-axis such that an optical axis of the optical lens extends off-axis to the beam axis, and / or the optical lens is tilted such that the optical axis of the optical lens forms an angle with the beam axis that deviates from 0°.

A transmission electron microscope is provided for imaging a sample. The microscope has a stage to hold a sample and an electron beam column to direct an electron beam onto a field of view on the sample. The electron beam column includes an electron beam source to generate an electron beam, and electron beam optics to converge the electron beam onto a field of view on the sample. The microscope also has a beam scanner to scan the electron beam across multiple fields of view on the sample. The microscope additionally has a detector to detect radiation emanating from the sample to generate an image. A controller is provided to analyze the detected radiation to generate an image of the sample.

The invention relates to a system (100) for measuring the concentration of at least one chemical component in a flowing fluid (200), comprising: a light source (10) configured to emit an excitation light beam (11); a measurement cell (20) comprising a fluid conduit adapted to flow the fluid and portholes (23, 24), one of which is arranged to receive the excitation light beam and the other arranged to transmit a first light beam (12) formed by the excitation light beam scattered and / or transmitted through the fluid; optical means (30) positioned to reflect the first light beam and to form a reflected light beam (13) towards the fluid, the second light beam (14) being formed by scattering and / or transmission of the reflected light beam in the fluid; a Raman spectrometer (45) configured to receive the second light beam and generate a spectral measurement; a calculation unit (50) adapted to measure the pressure of the fluid; a computing unit (60) programmed to determine a concentration of the at least one chemical component based on the spectral measurements and the fluid pressure.

The utility model provides a scanning device which comprises an optical system module, an external control module, a connecting assembly and a light transmitting bundle, the optical system module comprises a laser unit and at least one light emitting and image collecting unit, each light emitting and image collecting unit comprises a light outlet and an image collecting device, and the external control module comprises a light source unit and a main control unit. The optical system module is connected with the external control module through the connecting assembly, the light transmitting bundle penetrates through the connecting assembly and is connected with the light source unit and the light outlets, the light source unit emits emitted light, the light transmitting bundle transmits the emitted light to the light outlets, and the main control unit is connected with the laser unit, the image acquisition devices and the light source unit. The control unit controls the laser unit, the image acquisition device and the light source unit to scan the to-be-measured object. According to the invention, each image acquisition device is physically isolated from the light source unit generating heat and the main control unit, so that the influence of a large amount of heat on optical elements in each image acquisition device is avoided, and the scanning precision is ensured.

A cleaning system for a vehicle includes a beam optics assembly that emits a laser beam to irradiate a region on a glass article of the vehicle, debris detection circuitry that detects debris accumulated over the region, and control circuitry. The control circuitry calibrates a set of parameters associated with the laser beam emitted from the beam optics assembly based on detection of the debris accumulated over the region on the glass article, controls an exposure level of the laser beam on the debris accumulated based on calibration of the set of parameters associated with the laser beam, wherein the exposure level is controlled based on pulsing the laser beam at a calibrated rate that limits penetration of the laser beam to a depth that is less than a thickness of the glass article, and removes the debris accumulated over the region on the glass article using the laser beam.

Optical Module, Particularly for Motor Vehicles, and its Control Method. The invention relates to an optical module (20), particularly for motor vehicles, characterized in that it comprises a light source (21) composed of a plurality of selectively addressable light zones, each of the plurality of light zones being intended to emit a first light beam (22) around an optical axis (Y), an optical system (23) intended to receive the first incident light beams (22) emitted by the plurality of light zones and to form second output light beams (24) from the first incident light beams (22), an optical element (25) having one degree of freedom with respect to the optical axis (Y) and configured to deflect at least a portion of the first light beams (22) or at least a portion of the second light beams (24). (Figure 2)

The invention relates to a rapid maintenance device and method for an additive manufacturing multi-beam optical system, belongs to the technical field of additive manufacturing, and solves one of the problems that existing large-size additive manufacturing equipment is poor in operation accessibility and low in maintenance efficiency when a lens is manually wiped. The rapid maintenance device for the additive manufacturing multi-beam optical system comprises a mounting substrate and a protective glass assembling component, the mounting substrate is fixedly arranged at the top of the forming cabin and is used for arranging an optical system lens assembly and a protective glass assembling assembly; the protective glass assembling component is detachably mounted in the mounting substrate and can be inserted into or pulled out from one side of the mounting substrate; the protective glass assembling component comprises a plurality of protective glass units; the protective lens units and the optical system lens assemblies are arranged in a one-to-one correspondence manner. Rapid replacement of the protective glass unit is achieved, the maintenance time is shortened, the equipment utilization rate is increased, sealing is simple and efficient, and the cost is low.

A head-mounted device for providing floating images includes a head-mounted module, an image display module and an optical imaging module. The image display module is configured to be disposed inside the head-mounted module and carried by the head-mounted module. The optical imaging module is configured to be disposed inside the head-mounted module and carried by the head-mounted module. The image display module is configured to provide a plurality of first image light beams projected toward a first predetermined direction to the optical imaging module inside the head-mounted module. The optical imaging module is configured to convert the first image light beams provided by the image display module into a plurality of second image light beams that are projected toward a second predetermined direction to leave the head-mounted module, thereby enabling the head-mounted device to be configured to provide a floating image composed of the second image light beams.

An ophthalmic imaging instrument for imaging an eye of a subject, comprising: a light source arranged to emit a beam of light for imaging the eye; an optical system comprising a rotatable mirror and a drive mechanism arranged to drive the rotatable mirror to undergo a predetermined rotational motion to scan the beam of light across the eye; a rotary encoder coupled to the rotatable mirror so as to generate a signal indicative of a rotational motion of the rotatable mirror; and a processor arranged to detect when the rotational motion of the rotatable mirror indicated by the signal has deviated from the predetermined rotational motion and, in response to detecting that the rotational motion of the rotatable mirror has deviated from the predetermined rotational motion, generate a control signal to reduce an illumination of the eye by the beam of light.

A device for measuring caustic parameters of a laser beam includes a beam splitter for splitting the laser beam into at least three spatially separated partial beams, and a detection unit for detecting images of the partial beams. A beam path from an input of the device to the beam splitter defines a beam axis for the laser beam, along which the laser beam propagates until entering the beam splitter. The beam splitter includes an optical lens, and a partially reflective surface configured to split the laser beam into the at least three partial beams by partial reflection within the optical lens. The optical lens is positioned off-axis such that an optical axis of the optical lens extends off-axis to the beam axis, and / or the optical lens is tilted such that the optical axis of the optical lens forms an angle with the beam axis that deviates from 0°.

Disclosed herein are scientific-instrument support systems, as well as related methods, apparatus, computing devices, and computer-readable media. In some embodiments, a support apparatus for a scientific instrument includes an interface device and a processing device. The interface device receives Ronchigrams acquired with the scientific instrument and transmits control signals for the electron-beam optics thereof. The processing device converts a measured Ronchigram into an input token for a transformer, produces an output token based on a tokenized sentence ending with the input token, and determines adjustments to the control signals based on the input and output tokens. The input and output tokens belong to a plurality of tokens representing reference Ronchigrams sampling an alignment parameter space of the electron-beam optics. The transformer implements an autoregressive masked language model trained on a corpus of reference sentences representing paths through the alignment parameter space to a target alignment state of the electron-beam optics.

A wearable device for providing floating images includes a wearable module, an image display module and an optical imaging module. The image display module is configured to be disposed inside the wearable module and carried by the wearable module. The optical imaging module is configured to be disposed inside the wearable module and carried by the wearable module. The image display module is configured to provide a plurality of first image light beams projected toward a first predetermined direction to the optical imaging module inside the wearable module. The optical imaging module is configured to convert the first image light beams provided by the image display module into a plurality of second image light beams that are projected toward a second predetermined direction to leave the wearable module, thereby enabling the wearable device to be configured to provide a floating image composed of the second image light beams.