206 results about "Beam angle" patented technology

The invention discloses an off-line adjusting device and method for light spot position offset adjustment, and belongs to the technical field of optical precision adjustment. The device comprises a single-beam light-emitting direction adjusting device, a single-beam light-emitting position adjusting device and a multi-beam angle adjusting device which can be formed on the same off-line platform by configuring different detection units. The method comprises the following steps of: calibrating a light source by using the devices in sequence, and constructing an ideal light source assembly with accurate direction, accurate position and multi-beam parallelism; the whole device is installed to a complete machine system to serve as an absolute reference, and a complete machine optical element is adjusted to make a light spot reach a preset position; and finally, replacing with a customized light source and carrying out fine adjustment by taking the calibrated optical element as a reference. According to the method, decoupling of light source calibration and optical element calibration is achieved through the process of establishing the benchmark offline, transmitting the benchmark through the whole machine and customizing light source adaptation, the installation and adjustment precision, efficiency and repeatability are remarkably improved, and dependence on operation experience is reduced.

One disclosure of the present specification provides a method by which a UE performs communication. The method comprises the steps of: receiving information on a satellite from a network, wherein the information on the satellite includes orbit information of the satellite and a reference location of a cell of the satellite, and the satellite serves the UE; calculating a beam angle of the satellite on the basis of the orbit information and the reference location; on the basis of the beam angle of the satellite being fixed, determining a trajectory of the reference location of the satellite on the basis of the calculated beam angle and the orbit information; and performing cell measurement on the basis of the trajectory of the reference location.

A workpiece processing system with an ion source that includes two or more extraction apertures, each producing two beamlets at different extraction angles, is disclosed. The ion source includes blockers disposed within the ion source that manipulate the plasma sheath to allow extraction of ions at different extraction angles. The ion source may include at least two blockers, each proximate to a respective extraction aperture. These blockers may be different sizes or have different offsets relative to their respective extraction aperture. These differences result in ion beamlets of different extraction angles being extracted through the different extraction apertures. In another embodiment, the heights of the extraction apertures may differ. The blockers associated with these different sized extraction apertures may be identical, or may differ. Further, in some embodiments, the blockers may be electrically biased at different voltages to produce ion beamlets of different extraction angles.

The application relates to an illumination assembly for an endoscope and a parameter determination method of the illumination assembly. The illumination assembly comprises a cone part and a lens part which are integrally formed; the cone part comprises a large-diameter end and a small-diameter end; the light-out surface of the lens part comprises a total reflection surface and a refraction surface; the large-diameter end of the cone part is connected with the light-out surface of a light guide beam, and the small-diameter end of the cone part is connected with the lens part; the emergent light of the light guide beam is incident into the cone part from the large-diameter end, is converged and the beam angle is adjusted in the cone part, is then emitted from the small-diameter end, enters the lens part, and a part of the light beam incident into the lens part reaches the light-out port of the illumination assembly after total internal reflection on the total reflection surface, and another part reaches the light-out port of the illumination assembly after refraction on the refraction surface. The problems that the light cannot be considered in terms of uniform distribution and large-angle illumination in the coupling and transmission process of the existing endoscope illumination assembly are solved.

The T8 lamp tube comprises a light-transmitting lamp tube body with a through cavity penetrating in the axial direction, and is characterized in that a lighting source is arranged at a port of one end of the through cavity, the irradiation direction of the lighting source faces a port of the other end of the through cavity, a refraction lens covers the lighting source, and a reflection mirror is arranged at a port of the other end of the through cavity; the refraction lens and the reflection mirror are oppositely arranged. The T8 LED lamp tube has the advantages that the structure is simple, and the problems that the light emitting direction of a traditional T8 LED lamp tube is concentrated, a dark space exists, and the beam angle is limited are fundamentally solved through the secondary optical design of refraction and reflection.

Techniques for reducing blur in images taken during semiconductor inspection are disclosed herein. A stage holding a substrate for inspection may be moved at a substantially constant speed during inspection to increase throughput. In some techniques, a mirror system may be added to a camera system to reduce blur in an image. The mirror system may include a rotating mirror or a dithering mirror to convert linear motion of the stage into counter-rotating motion in the form of a deflected beam angle to reduce motion blur caused by movement of the stage.

The application belongs to the technical field of optics, and particularly relates to a condenser lens, a lamp and a condenser lens module. The condenser lens comprises, in sequence along the optical axis direction, an incident part for receiving and refracting light from a light source, a converging part for totally reflecting and converging the light refracted by the incident part, and an exit part for homogenizing and exiting the light converged by the converging part. The condenser lens is configured to make the difference between the beam angles of the light of different wavelengths after exiting be less than + / - 3 degrees. The application can make the light beams of different spectrums generated after passing through the same condenser lens have a small difference in exiting angle, solve the color layering problem of the light spot when the multi-color light sources are mixed, realize uniform light mixing, and only one set of condenser lens mold needs to be developed, thereby reducing the manufacturing cost.

The invention discloses a variable-focus uniform illumination system based on a laser light source. The variable-focus uniform illumination system comprises a white light module, a first lens group, a second lens group and a third lens group. The white light module, the first lens set, the second lens set and the third lens set are sequentially arranged in the direction of the optical axis. And the white light module and the lens group I form a secondary light source structure. And the second lens group and the third lens group form a Kepler telescope structure. The third lens group is a motion group. The Kepler telescope has the beneficial effects that white light of the white light module is projected to the lens group I, a light focus converged by the lens group I is used as a secondary light source, and the Kepler telescope structure consisting of the lens group II and the movable lens group III is matched, so that the angle change of emergent light beams is realized, and the angle change of the emergent light beams is realized; and the illumination uniformity of the illumination in the whole process of angle change is maintained at a relatively high level.

An apparatus includes a first mirror reflecting an input light beam as an intermediate light beam, a second mirror reflecting the intermediate light beam as an output light beam, an angle sensor measuring an angle of the output light beam, and a centration sensor measuring a centration of the input light beam. The apparatus further includes a controller configured to (i) based on measurements from the centration and angle sensors, determine an input path of the input light beam, (ii) based on the determined input path of the input light beam and a target output path, determine a target intermediate path, and (iii) based on the target intermediate path, determine target orientations of the first and second mirrors, such that the first and second mirrors, when steered to the respective target orientations, reflect the input light beam along the target output path.

Embodiments of the present application provide a kind of multi-focus laser assembly, laser processing device and method.Multi-focus laser assembly includes laser, beam splitting element, beam angle adjustment assembly, first beam shaping assembly, beam converging assembly and objective lens arranged in order along the direction of light path, laser is used to emit laser beam;Beam splitting element is used to split laser beam into predetermined number of sub-beams;Beam angle adjustment assembly includes predetermined number of sub-adjustment unit, each sub-adjustment unit is used to adjust the transmission angle of corresponding sub-beam;First beam shaping assembly includes predetermined number of sub-beam shaping element, each sub-beam shaping element is used to shape the sub-beam adjusted by corresponding sub-adjustment unit;Beam converging assembly is used to converge all sub-beams with preset optical parameters on objective lens, so that all sub-beams form burst point at predetermined number of positions of object after focusing through objective lens.This scheme has relatively high cutting efficiency.

An external shutter assembly to control a light beam emitted by a headlight of a vehicle includes a pair of transparent structures arranged facing the headlight and a blind assembly arranged between the transparent structures. The blind assembly includes a support rod extending movably coupled to a first transparent structure and a base rod fixedly coupled to a second transparent structure. The support rod is arranged to be displaced in the vertical direction. The blind assembly further includes a plurality of blinds arrayed in a vertical direction and arranged spaced apart from each other with first ends the blinds being pivotally coupled to the base rod and second end of the blinds attached to the support rod. The blinds pivot between a horizontal position and a slanted position in response to the vertical displacement of the support rod to control an angle of the light beam.

The utility model provides a gain flattening filter device for a multi-core optical fiber light amplification device, which comprises an input multi-core optical fiber, an input lens, an optical isolation system, a gain flattening filter plate, an output lens and an output multi-core optical fiber which are sequentially arranged along the direction of an optical path, the light passes through an optical isolation system, a gain flattening filter and an output lens in sequence and then is input to a second fiber core; each beam of light passing through the gain flattening filter and the optical axis form an emergent included angle theta, and the optical isolation system is used for isolating return light of the gain flattening filter. A light beam enters the gain flattening filter plate at an angle to ensure that interface reflected light can deviate from an inlet end collimator, so that return loss is ensured, pre-stage amplification is prevented from being influenced, meanwhile, the interface reflected light of the gain flattening filter plate is isolated by using an optical isolation system in a matched manner, normal operation of a pre-stage amplification system is ensured, and the integration of the devices is utilized. And miniaturization packaging can be facilitated.

A beam-steering device (100) for spatial steering of a light beam comprises a waveguide array (10) being arranged on a substrate (50) and comprising a waveguide array input (12), multiple waveguides (14-1, 14-2, . . . , 14-i) and a waveguide array output (16), wherein the multiple waveguides (14-1, 14-2, . . . , 14-i) are adapted for simultaneously guiding light from the waveguide array input (12) to the waveguide array output (16) and for forming a light beam downstream of the waveguide array output (16) by superimposing the light guided by the waveguides (14-1, 14-2, . . . , 14-i), a phase shifter device (18) being arranged for applying controlled phase shifts to the light guided in each of the waveguides (14-1, 14-2, . . . , 14-i), and a grating array (22) including at least one patterned grating in optical communication with the waveguide array output (16), the grating array (22) being configured to radiate the light beam out of the beam-steering device (100) to a surrounding, wherein the waveguide array output (16) is arranged such that the light beam is formed downstream of the waveguide array output (16) with a main lobe and side lobes and with a beam angle Φ in a plane of the substrate (50), that is determined by the controlled phase shifts applied to the light by the phase shifter device (18) and a wavelength of the light, a slab propagation region (20) is arranged between the waveguide array output (16) and the grating array (22) such that the main lobe of the light beam is angularly relayed to the grating array (22) and the side lobes of the light beam leave lateral sides of the slab propagation region (20) before reaching the grating array (22), and the grating array (22) is arranged to radiate the light beam out of the beam-steering device (100) with a first angular direction with respect to the substrate (50), that is determined by the beam angle Φ. Furthermore, a method of beam-steering a light beam is described.

A surface-emitting laser element disclosed in an embodiment of the invention comprises a first emitting portion having a plurality of first emitters arranged therein; and a second emitting portion having a plurality of second emitters arranged therein, wherein the first emitting portion emits a first beam angle and the second emitting portion emits a second beam angle narrower than the first beam angle, and the first emitters and the second emitters may be alternately arranged in at least one direction.

Provided is a lighting device that includes a light source assembly having at least two light sources with different light emitting characteristics, turned on and turned off independently to emit a light beam by one light source of the at least two light sources; a lens module, arranged on a light path of the light beam to receive the light beam; and an optical component, arranged on the light path to receive the light beam from the lens module, he optical component has a first light exiting portion, a second light exiting portion, and a rotary portion, and can move relative to the light source assembly, so that the light beam is exited from one of them, and a beam angle of the light beam exited from the first light exiting portion is different from the beam angle of the light beam exited from the second light exiting portion.

The utility model relates to the technical field of building structures, in particular to a steel frame supporting structure of an asymmetric outer inclined wall. Comprising a slope main body light steel beam assembly used for containing a wallboard, the bottom end of the slope main body light steel beam assembly is provided with an embedded plate base used for fixing the bottom of the slope main body light steel beam assembly, the slope main body light steel beam assembly is provided with a plurality of sets of connecting pieces which are arranged at intervals along the slope of the slope main body light steel beam assembly from top to bottom, and each set of connecting pieces comprises a plurality of connecting pieces which are transversely arranged at intervals; and secondary beam angle steel is vertically arranged on the connecting piece. The connecting piece comprises a connecting part capable of being pre-connected with the slope main body light steel beam assembly and a supporting part capable of enabling the secondary beam angle steel to be vertically placed. According to the utility model, the problems of stability, material adaptability and construction precision of the asymmetric outer inclined wall are solved, and rapid installation and dynamic deformation compensation are realized.

The application discloses an acoustic Doppler velocity information solving method and system, and relates to the technical fields of integrated navigation and underwater acoustic positioning. The application is used to solve the problem that the existing DVL velocity solving method has errors in the solved velocity and is not orthogonal, thereby leading to low navigation precision. The application comprises the following steps: acquiring eight beam angles alpha L , theta i of DVL four-beam in a carrier coordinate system by using the navigation information output by the integrated SINS / GPS and the radial velocity information V i of the DVL four-beam; obtaining the instantaneous mass estimation parameters of the four velocity measuring beam output velocities by using the echo acoustic signals collected by the DVL four-beam; and acquiring the three-dimensional velocity information output by the DVL by using the eight beam angles alpha i , theta i of the DVL four-beam in the carrier coordinate system and the instantaneous mass estimation parameters of the four velocity measuring beam output velocities. The application is used for DVL velocity solving.

The mining lamp structure comprises a radiator, a light source plate and a lens lampshade, the light source plate and the lens lampshade are fixed on the radiator, the lens lampshade comprises a lens body, a concave cavity is formed in the top face of the lens body, and an installation convex ring is integrally formed on the edge of the top face of the lens body. The light-emitting surface of the bottom surface of the lens body is a Fresnel light-emitting surface, and a plurality of arched arc-shaped surfaces are integrally formed on the bottom surface of the concave cavity of the lens body; light rays of the light source plate enter through light mixing of the arched arc-shaped face and irradiate outwards through the Fresnel light-emitting face. The LED lens is reasonable in structural arrangement, the concave cavity is formed in the top face of the lens body, the light-emitting face of the lens body is the Fresnel light-emitting face and is matched with the arched arc-shaped faces to achieve light entering, the entering light enters the lens body after being reflected and refracted by the different arched arc-shaped faces and then irradiates outwards through the Fresnel light-emitting face, the light beam angle of an LED lamp bead is changed, and the light emitting efficiency is improved. The illumination and the projection distance can be improved, meanwhile, the uniformity of illumination light rays can be improved, and the applicability is high.

Modular lighting device (1), consisting of a light generating unit (2) and an optical unit (3), characterized in that, that the light-generating unit (2) contains a light source (22) with a primary optic (23), that the optical unit (3) includes a secondary optic (32) which changes the beam angle, the beam characteristic and / or the color of the incident light and that the optical unit (3) includes an adjustment device (33) which has no moving parts and which changes the beam angle, the beam characteristic and / or the color depending on an electrical signal.

The invention relates to a holographic technology-based special beam angular momentum detector preparation device and method. The device comprises a laser light source; the polarization beam splitter is used for splitting the laser generated by the laser light source into signal light and reference light; a signal light path; a reference light path; the hologram loading unit is arranged on a light path of the signal light, and the hologram loading unit is used for loading two composite holograms into the signal light; the reflector group is arranged on the signal light path or the reference light path; and the polarization sensitive material is arranged at the interference position of the signal light and the reference light. An existing polarization sensitive material is adopted, the manufacturing process is simple, the cost is low, the problems that in an existing detection method, the size is large, and the manufacturing cost is high can be solved through the material, meanwhile, the device can be manufactured only through exposure, and the machining difficulty is greatly reduced.

The scheme belongs to the technical field of optical measurement, and discloses a device for quickly measuring the angle of a light beam, which comprises a shearing interferometer and an angle measuring tool. The shearing interferometer comprises a shearing plate and an observation plate marked with a reference line, the included angle between the shearing plate and the observation plate is 45 degrees, the extension planes of the surfaces of the shearing plate and the observation plate facing or away from each other intersect, and the intersection line is perpendicular to the reference line. The shearing plate is used for shearing a to-be-measured parallel light beam into a first light beam and a second light beam and reflecting them to the observation plate, the observation plate is used for observing the interference fringes of the first light beam and the second light beam, and the angle measuring tool is used for measuring the rotation angle of the shearing interferometer rotating around the normal line of the observation plate from an initial posture to an end posture. The initial posture refers to the posture of the shearing interferometer when the reference line is parallel to the projection of the reference line of the to-be-measured parallel light beam on the observation plate, and the end posture refers to the posture of the shearing interferometer when the interference fringes are parallel to the reference line.

The application discloses a skin dose calculation method based on a depth camera, comprising the following steps: obtaining the transformation relationship between the beam coordinate system of a three-dimensional perspective device and the camera coordinate system of the depth camera by calibrating a calibration phantom with a plurality of marker balls; collecting corresponding images by the depth camera and calculating the coordinates of each pixel point in the image under the beam coordinate system according to the transformation relationship; determining the beam region according to the beam angle of the ray source, combining the coordinates of each pixel point to determine the actual incident position and the incident depth of the patient, and calculating the corresponding skin dose accordingly. The application can locate the actual incident position of the patient by the depth camera, calculate the skin dose at the actual incident position, and display accurate skin dose indication.

This disclosure relates generally to metasurface beam steering antenna and method of setting antenna beam angle. Conventional approaches perform electronically beam steering using phase array which requires bandwidth with higher data rates. The present disclosure enables metasurface antennas tilt antenna beam in a given direction, where the varactor diodes are operated in reverse bias so that different values of capacitors combination lead to electronic beam scanning. The processor of the metasurface beam steering antenna receives a command having an input angle to tilt the angle beam position. The processor processes the command by mapping the input angle with the set of c-shaped copper patch combination having the capacitor values using a predefined lookup table for setting the antenna beam angle based on a reference voltage generated by the varactor diode. The lookup table is iteratively updated with the capacitor values of the c-shaped copper patches.

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.

The invention relates to an integrated navigation precision improvement method based on fused hydrological information, which belongs to the technical field of inertial navigation, and comprises the following steps: S1, based on hydrological information of a target navigation sea area, calculating to obtain a sound velocity profile of the target navigation sea area and wave beam angles of each water layer of the target navigation sea area; s2, based on the sound velocity profile of the target navigation sea area and each water layer beam angle, obtaining a corrected Doppler measurement speed; s3, compensating the corrected Doppler measurement speed based on the beam incident angle after equivalent refraction to obtain a compensated Doppler measurement speed; and S4, fusing the compensated Doppler measurement speed with the inertial navigation speed to obtain a corrected navigation calculation result of the ship or the underwater vehicle. According to the invention, the hydrological environment data and the inertial navigation data are fused, so that the position precision and reliability of the ship or the underwater vehicle during long-time autonomous navigation are greatly improved.

The invention provides a Micro-LED device, a preparation method and a design device thereof, and a design method of a metasurface structure, and relates to the technical field of Micro-LEDs. The phase distribution of the metasurface structure is initially designed according to a target light beam angle deflection value, and the initial phase distribution is obtained. Taking a phase coefficient of the initial phase distribution as a current phase coefficient, and constructing a current metasurface structure according to the current phase coefficient; and a plurality of simulation point light sources are used for emitting light to the current metasurface structure to obtain light field distribution. The method comprises the following steps: firstly, calculating a current evaluation value according to phase distribution of light field distribution, and finally, adjusting a current phase coefficient according to the current evaluation value until a preset iteration end condition is met at present, thereby obtaining optimal phase distribution. According to the technical scheme, through the design of simulation of the multiple simulation point light sources and phase iterative optimization, precise regulation and control of the light beam direction of the Micro-LED are achieved, and the illumination precision and the energy utilization efficiency are improved.

To provide an antenna device that allows for easy selection of the optimal interface layer. [Solution] The interface layer selection method includes an antenna provided on a windowpane and capable of scanning beam angles, an interface layer provided on the windowpane, and a control unit, and is a method for selecting the interface layer of a wireless communication device provided on a window having the windowpane, wherein the control unit scans the beam angle of the antenna to obtain a first angular distribution of the received power of radio waves arriving from a base station with respect to the beam angle, estimates the incident angle of the radio waves based on the first angular distribution, and selects an interface layer according to the estimated result of the incident angle.

The invention discloses a new energy motor shaft detection device which comprises a positioning mechanism, a driving mechanism and a detection mechanism. The positioning mechanism is used for fixing a to-be-tested motor shaft, and the driving mechanism drives the motor shaft to rotate. The detection mechanism comprises a signal transmitting assembly and a signal receiving assembly. One end of a signal lever of the signal transmitting assembly is provided with a signal transmitting unit, the other end is a contact end in contact with the shaft surface, and the lever structure amplifies infinitesimal displacement of the contact end into angular deflection of the transmitting unit. A receiving tube of the signal receiving assembly is internally provided with a multi-corner signal transmission channel, and each corner is provided with a signal receiving and reflecting unit with a reflecting layer and a sensor. When a defect exists on the surface of the shaft, displacement of the contact end causes change of the angle of the emitted light beam, so that the light beam is off-target in the channel, and signals received by one or more sensors are changed. Continuous deformation is converted into discrete optical path signals, and the method is high in sensitivity, visual in judgment, high in interference resistance and suitable for online rapid detection and sorting.

The utility model belongs to the technical field of automobile lighting, in particular to an automobile lighting system with an illumination angle adjusting function, which comprises a plurality of lamps and an adjusting device, the adjusting device is arranged on the surfaces of the lamps and comprises a fixing frame, the inner surface of the fixing frame is fixedly connected with the surfaces of the lamps, two sides of the fixing frame are fixedly connected with rotating blocks, and the rotating blocks are arranged on the fixing frame. A protection device is arranged on the surface of the fixing frame and comprises a protection cover, the surfaces of the multiple lamps are sleeved with the protection cover, the upper end and the lower end of the protection cover are each fixedly connected with two inserting blocks, and storage blocks are fixedly connected to the positions, close to the inserting blocks, of the surface of the fixing frame. The insertion blocks are inserted into the inner surfaces of the storage blocks, and the inner walls of the storage blocks and the insertion blocks are in threaded connection with fixing pins; by arranging the whole device, the lamp can be supported, and meanwhile, the position and angle of the lamp can be conveniently adjusted, so that different requirements are met.