183 results about "Beam optics" patented technology

The invention discloses a device and method for measuring dust concentration distribution at an inlet of an aero-engine, and belongs to the field of aero-engine sand swallowing tests, the device comprises a pulse laser light source, a shaping module, an optical image acquisition module and a data post-processing module, the pulse laser light source is arranged at a preset position around the aero-engine and is used for emitting laser beams, and the shaping module is used for shaping the laser beams; the aero-engine is located in a sand dust environment to be detected; the shaping module is used for receiving the laser beam and outputting a sheet-shaped beam; the optical image acquisition module is used for receiving coherent scattered light emitted by the grit in the irradiation area of the flaky light beam to form a laser speckle image, and transmitting the obtained laser speckle image to the data post-processing module; and the data post-processing module processes the laser speckle image by adopting an inlet sand dust concentration measurement algorithm to obtain the concentration distribution of the inlet sand dust of the aero-engine. The device is simple in structure, and is suitable for measuring the sand dust concentration distribution at the inlet in the sand swallowing experiments of aero-engines with different sizes or stages.

Various optical systems for use in a light pulse atomic interferometer (LPAI)-based one-, two-, or three-axis accelerometer or gyroscope are disclosed. As an LPAI accelerometer or gyroscope may employ many different laser beams to implement the LPAI functionality, ways of combining these different laser beams to thereby simplify the optical systems are desired. The cooling laser beam portion of the optical system may be simplified using one or more reflective grating chips. The Raman laser beam optics may be simplified using combiners and separators. For LPAI systems sensing along three axes, various optical switching schemes may be employed, including ones that generate variable data-rates with a primary sensing axis having a higher data-rate than the secondary sensing axes. Further, by combining various laser beams in a time-multiplexed manner, the number of optical fiber tethers to a sensor head may be reduced.

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.

An ion implantation system includes an ion source, a beamline that extracts and shapes an ion beam from the ion source, a deceleration stage that reduces the energy of the ion beam while focusing the ion beam in the direction of a workpiece. A workpiece support has a structure that determines an implant plane position, which is the position of a workpiece surface that receives the ion beam. The workpiece support is configured to translate the implant plane along a path of the ion beam so as to shorten or lengthen the path without changing the tilt angle of the workpiece. The beam optics may be fixed and the focal point of the ion beam may be allowed to vary with a decel ratio. The workpiece support may translate the implant plane to a focal point of the ion beam or to some fixed offset from that focal point.

The embodiment of the invention provides a wavelength selection switch, an optical switching node and a communication system, which can reduce the number of devices included in the wavelength selection switch and improve the integration level of the wavelength selection switch. The wavelength selective switch comprises an input optical fiber, a lens group, a dispersion unit, an optical switching engine and an output optical fiber array, wherein the dispersion unit comprises an optical metasurface structure; the input optical fiber is used for transmitting input light beams to the lens group; the lens group is used for collimating an input light beam to obtain a first light beam and transmitting the first light beam to the dispersion unit; the optical metasurface structure is used for decomposing the first light beam to obtain multiple paths of second light beams, and the optical metasurface structure is further used for collimating the multiple paths of second light beams to transmit the collimated multiple paths of second light beams to the optical switching engine; the optical switching engine is used for deflecting the transmission direction of each second light beam in the multiple paths of second light beams so as to obtain multiple paths of output light beams, and the multiple paths of output light beams are used for being output through the output optical fiber array.

The embodiment of the invention provides an optical phased array chip and a laser radar, and the chip comprises a beam splitter which is used for carrying out the beam splitting of an inputted emergent laser beam, and obtaining a plurality of emergent laser sub-beams; the phase shifter is optically connected with the beam splitter and is used for carrying out phase modulation treatment on the emergent laser sub-beams to obtain the emergent laser sub-beams subjected to phase modulation; the optical phased-array antenna array comprises a plurality of optical antennas, and the optical antennas are optically connected with the phase shifter and used for emitting the emergent laser sub-beams subjected to phase modulation to a detection area; and the compensation structure is matched with the optical phased-array antenna array and is used for performing local temperature regulation and control on the optical phased-array antenna array so as to change the effective refractive index of the corresponding optical antennae. According to the application, far-field light spots of the transmitting antenna and the receiving antenna of the laser radar can reach design values, and the accuracy of the laser radar is improved. And the detection performance of the laser radar system is improved.

A high-beam optical element includes a light incident part, a light guide part and a light emitting part sequentially arranged from back to front. The light incident part includes a high-beam incident part and an auxiliary lighting structure. The auxiliary lighting structure is configured to receive auxiliary lighting and transmit it to the light guide part after at least one reflection and then project it from the light emitting part as a low-beam III. The high-beam optical element is part of a high-beam illumination unit in a vehicle.

The disclosure provides an optical system, a semiconductor processing system, and a method for processing a semiconductor wafer. In one example, the optical system includes: (1) a light source configured to provide source light to a source plane to form a plurality of first subbeams, (2) optical elements configured to modify each of the plurality of first subbeams to form a plurality of interrogation spots on a wafer according to a predetermined pattern, wherein the optical elements are further configured to modify each of the plurality of first subbeams upon reflection from the wafer to form a plurality of second subbeams upon an image plane, and (3) a spectrometer configured to receive collected light from the plurality of second subbeams.

A diverged beam optical transmitter is provided that includes a laser source configured to emit a light beam, and one or more lenses. The diverged beam optical transmitter also includes a diffuser placed between the laser source and the one or more lenses, and configured to increase an intrinsic divergence of the light beam and to fill some portion of the one or more lenses such that the light beam is eye safe after the one or more lenses.

Scientific instrument support systems, and related methods, apparatuses, computing devices, and computer readable media are disclosed herein. In some embodiments, a support apparatus for a scientific instrument includes an interface device and a processing device. An interface device receives a Lenchi map acquired with a scientific instrument and transmits a control signal for electron beam optics of the scientific instrument. The processing device converts the measured Lengchi map into an input token for the transformer, generates an output token based on a tokenized sentence ending with the input token, and determines an adjustment to the control signal based on the input token and the output token. The input token and the output token belong to a plurality of tokens representing a reference Lengchi map that samples an alignment parameter space of the electron beam optics. The transformer implements an autoregressive masking language model trained on a corpus of reference sentences representing a path through an alignment parameter space to a target alignment state of the electron beam optics.

An image projection device includes a projection unit converging image light beams emitted in different directions from a scanning unit at a first convergence point in user's eye, a reflection unit converging the image light beams at a second convergence point before the projection unit, an optical member being provided between the projection unit and the reflection unit, converting the image light beams into convergent light beams, and causing the image light beams to enter the projection unit as diffusion light beams a drive unit moving the reflection unit, a detection unit detecting a direction in which user's pupil has moved, and a drive control unit controlling the drive unit to move the reflection unit so that incident positions of the image light beams on the optical member change according to the direction in which the pupil has moved.

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.

The present invention provides a system and method for spectroscopic imaging. In one embodiment, a system includes: a sample stage for holding a sample to be analyzed; a first light source for generating a pulse of infrared light; a second light source for generating a probing beam of infrared light; an optical system to direct the pulses of infrared light and the probing beam of infrared light at the sample, such that a temperature change is induced in an area of the sample. The duration of the pulse of infrared light is shorter than or equal to a cooling time constant of resolution scale inclusions within the sample such that the temperature change is independent of inclusion size. Light detectors are configured to detect light from the sample and digitization electronics convert data from the light detectors into signal data indicative of a chemical composition of the sample.

The invention discloses a lighting module (100), comprising: a light source (101) configured to emit light; a light collector (102) having a reflective surface (1021) configured to collect light rays emitted by the light source (101) and to reflect the light rays into light beams along an optical axis (X) of the lighting module (100); an optical projection system (103) configured to project the light beam; the light type projected by the optical projection system (103) corresponds to the shape of the reflecting surface (1021) of the light collector (102); wherein the reflecting surface (1021) of the light collector (102) further comprises an optical structure (1022), and the optical structure (1022) enables light rays reflected by the optical structure (1022) to be diffused. The invention further discloses a lighting device and a vehicle.

The invention relates to a laser machining head for machining a workpiece by means of a laser machining beam, said laser machining head comprising: a scanning device for directing the laser machining beam onto a plurality of positions on the workpiece; a machining beam optical system for adjusting a focus position of the laser machining beam and for focusing the laser machining beam, the machining beam optical system being arranged between an entry port for the laser machining beam and the scanning device; a sensor assembly for detecting process light using at least one sensor; a decoupling optical system for decoupling process light to the sensor assembly, the decoupling optical system being arranged between the machining beam optical system and the scanning device; and a process light optical system for adjusting a focus position of the process light with respect to the sensor, the process light optical system being arranged between the decoupling optical system and the sensor assembly and comprising a variable lens with an adjustable focal length.

According to some embodiments, a system for fractionated treatment of tissue includes an electromagnetic radiation (EMR) source configured to generate an EMR beam having a transverse annular energy distribution; an optic configured to converge the EMR beam to a focal region located within tissue; and a window assembly at a lower beam of the optics, the window assembly configured to cool the tissue when placed in contact with an outer surface of the tissue.

The present invention relates to a device (10) for scanning a surface (100) by endoscopy, comprising: - a light source (12) capable of generating an emitted light beam (20) having a wavelength selectively chosen from different wavelengths, - an optical guide (14) suitable for transmitting the emitted light beam (20), and - an optical device (16) arranged to receive the emitted light beam transmitted by the optical guide (14) and to emit an exiting light beam (30) from the received light beam, the optical device (16) being suitable for emitting the exiting light beam (30) at a location and / or at an angle depending on its wavelength. The invention also relates to an associated assembly and scanning method.

An apparatus includes an optical write module and an optical characterization module. The optical write module is configured to emit a laser beam and direct the laser beam to a substrate. The optical characterization module is optically coupled to the optical write module such that the optical write module and the optical characterization module share the same optical path. The optical write module is configured to emit a viewing beam toward the substrate. The optical characterization module is also configured to determine whether the mixture of the solution and the suspension is in contact with the substrate. When it is determined that the mixture is in contact with the substrate, a laser beam is caused to irradiate the mixture near the surface of the substrate, thereby forming a deposition of mechanically rigid material in contact with the substrate.

The utility model discloses a sewage outlet water quality monitoring device based on full spectrum, comprising a water sample processing mechanism, the water sample processing mechanism comprises a water sample collection device and a pretreatment device, the water sample collection device collects a water sample of a sewage outlet, and the pretreatment device pretreats the collected water sample; a light source that generates a light beam covering a full spectral range; the optical system is arranged opposite to the light source, and the optical system guides the light beam generated by the light source to the pretreated water sample and collects a spectrum reflected, scattered or transmitted by the water sample; the spectrograph is used for receiving a spectral signal after the light beam passes through the water sample and converting the spectral signal into a digital signal; the wireless communication module is connected with the spectrograph and used for sending the digital signals to a cloud server, and the cloud server receives the digital signals and analyzes the digital signals to extract water quality parameter information.

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 discloses a transmitting module, a detection device and terminal equipment. The emission module comprises an array light source and an optical shaping assembly, and the optical shaping assembly comprises a spherical lens and / or an aspherical lens. The array light source is used for emitting a first light beam. The optical shaping assembly is used for adjusting a first divergence angle of a first light beam emitted by the array light source to a first preset divergence angle at least in the first direction and dodging the first light beam to obtain a second light beam. The first light beam emitted by the array light source has good divergence angle adjustment and dodging effects. The method is used for solving the problem that micro-nano optical element shaping through a complex preparation process is needed in the prior art. The method can be applied to the fields of automatic driving, intelligent driving, auxiliary driving, connected vehicles or surveying and mapping and the like.

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.

To provide a support apparatus for a scientific instrument which includes an electron microscope column and associated Ronchigram acquisition circuitry.SOLUTION: An interface device receives acquired Ronchigrams and transmits control signals for 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 of 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.SELECTED DRAWING: Figure 5

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.

Various embodiments of the present disclosure relate to a photonic circuit for vector matrix operation. The source pixel is configured to generate a light beam. The optical fan-out structure is configured to produce a plurality of copies of the light beam. A plurality of modulator pixels are configured to transmit the plurality of replicas at individual transmittances, respectively, to produce a plurality of transmitted beams. A plurality of detector pixels are configured to accumulate charge in response to the plurality of transmitted light beams, respectively. A controller is configured to control the source pixel and the plurality of modulator pixels to modulate the intensity of the light beam and the individual transmittances to perform a vector matrix multiplication operation. The intensities are modulated to temporally encode input row vectors, and the individual transmittances are modulated to temporally encode corresponding column vectors of a weight matrix. The embodiment of the invention also provides a method for executing a multiply-accumulate-add (MAC) operation.

The invention discloses a frequency spectrum measuring device. The frequency spectrum measuring device comprises a scanning type light receiver, an optical assembly and a processor. The scanning light receiver sequentially receives a plurality of light beams of a display image on a plane according to a scanning action so as to sequentially generate a plurality of input light beams. The optical assembly sequentially receives the input light beams and generates a plurality of pieces of processed information. The processor obtains brightness and chrominance information of the display image according to the processed information.

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.