45 results about "Reflective system" patented technology

To provide a compact, high-performance catadioptric optical system. [Solution] The optical system comprises, in order of light passage from the object side, a primary mirror section consisting of an aspherical concave mirror with its concave surface facing the object side, a secondary mirror section arranged on the object side of the primary mirror section and consisting of an aspherical convex mirror with its convex surface facing the image side, and a refractive system arranged on the image side of the secondary mirror section, the refractive system comprising a front group with positive refractive power and a rear group with negative refractive power separated by a maximum air gap, the refractive system comprising at least five lenses, where PG is the Petzval sum of the refractive system obtained by normalizing the focal length of each surface by the focal length of the entire system, and PM is the Petzval sum of the reflective system obtained by normalizing the focal length of each surface by the focal length of the entire system, 0.6<|PG / PM|<1.2…(1) If the refractive power of the refractive system is φG and the refractive power of the entire system is φ0, then 0.05<|φG / φ0|<1.5…(2) 7 <PM<20…(3) It is characterized by satisfying the conditions (1), (2), and (3).

The application belongs to the technical field of precision laser processing, and specifically discloses a laser micro-drilling and cutting device and method for a metal foil lead frame, which comprises a processing platform, a clamp, a three-axis motion system, a scanning galvanometer and an ultraviolet nanosecond pulse laser. The clamp applies a pre-tension to the metal foil through a screw rod mechanism and integrates a laser displacement sensor to monitor thermal deformation in real time. The three-axis motion system and the scanning galvanometer cooperate to realize three-dimensional accurate positioning, and a reflection system dynamically regulated by multiple mirrors is combined to ensure that the laser is vertically incident. The method comprises clamping and focusing, image processing and path planning, multi-directional scanning processing and post-processing. The application solves the problems of thermal deformation suppression and micron-level feature accuracy maintenance in large-format processing through optical-mechanical coupling multi-axis linkage control, has the advantages of high precision, environmental protection and high efficiency, and is suitable for the preparation of ultra-thin metal foil lead frames.

The utility model discloses a kind of double-focus reflection systems and the car light with it, the double-focus reflection system includes: thick wall spare and collimating system;One end of the thick wall spare is light-reflecting surface, the other end of the thick wall spare is formed into light emitting surface;The collimating system is formed in one side of thick wall spare;The collimating system includes: first half collimating unit and second half collimating unit;The focal point of the first half collimating unit is equipped with first light source;The focal point of the second half collimating unit is equipped with second light source;The first half collimating unit includes first total reflection surface and multiple first refracting surface;The second half collimating unit includes second total reflection surface and multiple second refracting surface;Multiple first refracting surface and multiple second refracting surface are arranged in multiple, the first total reflection surface and second total reflection surface are oppositely arranged, and respectively located in both ends of multiple first refracting surface and multiple second refracting surface, the utility model has the advantages of saving space occupation, and guarantee lighting effect consistent.

The utility model belongs to the technical field of vehicle lamps, and particularly relates to a total reflection system which comprises a first total reflection surface and a second total reflection surface which are connected with each other and form a total reflection unit, and a plurality of total reflection units are sequentially arranged along a shape follow-up trend line. And the other end of the first total reflection surface and the other end of the second total reflection surface are arranged on the shape follow-up trend line. According to the utility model, the first total reflection surface and the second total reflection surface form the multiple total reflection design of the total reflection unit, so that the incident light can be fully utilized by the system, and the utilization rate of the light is effectively improved; the total reflection units are sequentially arranged along the shape follow-up trend line, so that the total reflection system can well adapt to car lamp models with different inclination degrees, even if the inclination degree of the car lamp models is large, incident light can all irradiate on the total reflection units, and therefore the lighting uniformity of the whole car lamp is improved.

The invention relates to the technical field of regulation and control models, and particularly discloses an elastic wave field regulation and control model based on broadband reflection type mode conversion. The elastic wave mode converter is used for solving the problems that most of existing elastic wave mode converters based on metamaterials or phononic crystals are transmission-type, narrow in working bandwidth and sensitive to processing errors, a reflection system is difficult to achieve accurate and controllable emergent wave front phase, and broadband efficient reflection-type mode conversion and flexible wave field regulation and control are difficult to achieve. The model can realize an achromatic function of a superstructure, so that focusing and abnormal reflection effects are kept stable in a broadband.

A LIDAR system concurrently receives multiple different system return signals that have each been reflected by an object located external to the LIDAR system. The LIDAR system has a data signal generator with multiple light sensors that each receives light from a different one of the system return signals. The data signal generator generates data signals that are each an electrical signal beating at a beat frequency. Each of the data signals is generated from the light from a different one of the system return signals. The LIDAR system includes an analog-to-digital converter configured to receive the data signal in series.

The application discloses an eye light therapy system and device, which comprises a light system including a light source module for emitting light, a reflection system for reflecting the light to the user's eyes, and an adjustment system for adjusting the position of the light source module in the light system and / or adjusting the position of the reflection system to adjust the object distance of the light source module. The application can also adjust the object distance of the light system during the process of the light system irradiating the eyes, so as to change the distance between the visual image seen by the user's eyes and the eyes, move the visual image seen by the user in the distance, adjust the ability of the user to see near and far, and improve the sensitivity of the human eye to near and far.

A catoptric (mirror-based) optical system uses Scheimpflug optics and non-concentric optics to generate unobscured highly magnified images (e.g., >100x) in EUV reticle inspection tools. The Scheimpflug optics collect light beams from an object plane and directs the light beams along a first optical axis to generate an intermediate image at an intermediate image plane that is oblique to the object plane. The non-concentric optics redirect the light beams from the first optical axis to a second optical axis that is perpendicular to the intermediate image plane and generates a magnified image on a final image plane that is parallel to the intermediate image plane. The Scheimpflug optics may include a first mirror positioned to collect light beams reflected normal to the object plane and a second mirror positioned adjacent to the normal direction and configured to redirect the light beams onto the first optical axis.

The invention belongs to the technical field of wireless communication, and particularly relates to an unmanned aerial vehicle communication system based on intelligent reflecting surface assistance and a joint optimization method, which are characterized in that a mode of deploying an AIRS is proposed, and a rotation angle, namely a direction angle, of an intelligent reflecting surface is introduced; secondly, combining the three-dimensional position of the unmanned aerial vehicle, the active beam forming of the base station and the passive beam forming of the intelligent reflecting surface to describe the signal-to-noise ratio of a user side; an AIRS single reflection system model with the optimization target of maximizing the signal-to-noise ratio of the receiving end is established, and then solving and analysis are carried out according to the characteristics of the AIRS single reflection model. According to the method, through joint optimization design of the three-dimensional track of the unmanned aerial vehicle, active beam forming of the base station antenna and passive beam forming of the intelligent reflecting surface, the signal-to-noise ratio of a single user side can be maximized, and the communication quality is improved.

A LIDAR system includes a signal director that can direct an outgoing LIDAR signal to any one of multiple different alternate waveguides. Each of the alternate waveguides being associated with a different switch channel in that a light signal that includes light from the outgoing LIDAR signal directed to a particular one of the alternate waveguides can be characterized as carrying the switch channel associated with that alternate waveguide. The LIDAR system is configured to output system output signals that include light from the outgoing LIDAR signals. The system output signals carry different switch channels. The LIDAR system is configured to receive system return signals that each includes light from the system output signals after an object located outside of the system has received and reflected the system output signal. A signal combiner that generates different composite signals by combining light from system return signals that carry different switch channels with a reference signal. Electronics calculate LIDAR data from the frequency of one or more of the composite signals. The LIDAR system being configured to continue to generate a composite signal that carries a first one of the switch channels for a substantial period of time after the imaging system has stopped outputting the system output signal that carries the first switch channel.

The invention discloses a reflection system and a camera module thereof, and the reflection system comprises a reflection assembly which comprises a first lens, a reflection element and a second lens, the reflection element reflects light incident along a first axis to a second axis, and the reflection element is provided with a light incident side along the first axis and a light emergent side along the second axis, the first lens is arranged on the light inlet side of the reflecting element, the first shaft penetrates through the first lens and the reflecting element, the second lens is arranged on the light outlet side of the reflecting element, and the second shaft penetrates through the second lens and the reflecting element; the first lens, the reflecting element and the second lens are driven to rotate together around a first axis and a third axis; the first lens and the second lens meet the condition that 0.02 mm <-1 > < = D2y / EPDy / d12lt; d2y is the maximum effective half aperture of the second lens in the second direction, EPDy is the entrance pupil diameter of the reflection system in the second direction, and d12 is the axial distance from the image side surface of the first lens to the object side surface of the second lens.

The utility model belongs to the technical field of car lamps, and particularly relates to a reflection system with edge light as a light source, which comprises at least one light source, an imaging part and a light guide plate, the light guide plate is positioned on one side of a light inlet end of the imaging part, and the light source irradiates the imaging part through the light guide plate; the contour line of the imaging part comprises a parabola, the focus of the parabola is a focus F, and the focus F is located near the light outlet of the light guide plate. And the focal point F is positioned at a light outlet of the light guide plate. The reflection system with the edge light as the light source has the effects of being better in lightening effect and weakening granular sensation.

The utility model relates to the technical field of X-ray detection, and discloses a device for detecting trace heavy metals in soil, plants and water, which comprises a shielding layer, a control sliding table module and an X-ray total reflection system are arranged in the shielding layer, a sample inlet, a cooling fan and a horizontal slide rail are arranged on the shielding layer, a sample table can be drawn out along the horizontal slide rail, and the X-ray total reflection system is arranged on the sample table. The X-ray total reflection system comprises an X-ray tube, a light guide and a detector, and the height and angle of X-rays can be adjusted by controlling the sliding table module. According to the utility model, X-rays pass through the light guide to form an incident angle with an extremely small angle, total reflection is generated on the surface of the sample table, so that background noise generated on the sample table is greatly reduced, and meanwhile, the silicon drift detector is adopted, so that the detection capability is greatly improved, and a relatively good detection capability on trace or trace elements in soil is realized; and the mass is light, the movement and the transportation are convenient, and greater portability is provided for testers.

A vertical all-weather passive thermoelectric power generation device and method based on double-sided reflection structure belong to the technical field of thermoelectric power generation. The present application solves the problems of the existing technology, such as the limited receiving capacity of the hot end of the thermoelectric device to sunlight, large device area, low space utilization, and not conducive to large-scale expansion application. The high-reflection solar panel and the high-reflection infrared panel are arranged on the left and right sides of the thermoelectric power generation panel, and the high-reflection solar panel and the high-reflection infrared panel form a 'V' type reflection system or a 'parabolic cylinder' type reflection system. The present application utilizes the double-sided reflection structure to realize that the cold end and the hot end of the thermoelectric power generation device face the sky, which can improve the receiving capacity of the hot end to sunlight, and can ensure that the cold end faces the sky and the deep cold space for radiation refrigeration, thereby realizing all-weather passive power generation using solar heat energy and deep space cold source at the same time. Moreover, the present application effectively reduces the device area, improves the space utilization, and is convenient for large-scale expansion application.

An optical magnification device (1) for an electronic device (2), the device comprising a folding structure (3) and a support structure (6) for connecting the folding structure (3) to the electronic device (2) such that the focal plane of the optical magnification device (1) is located within the electronic device (2). The folding structure (3) comprises a reflecting system for forming a folded optical path (O), the reflecting system comprising a primary reflecting element (4) and a secondary reflecting element (5). The primary reflecting element (4) comprises a concave reflecting surface and the secondary reflecting element (5) comprises a planar reflecting surface. The distance between the primary reflecting element (4) and the secondary reflecting element (5) can be up to 450 mm and / or the magnification provided by the optical magnification device can exceed x100.

Provided are a radio wave reflector capable of reflecting radio waves over a wide area of space, a method for producing a radio wave reflector, a radio wave reflection structure, a radio wave reflection system, and a radio wave reflection device. A radio wave reflector 10 of the present invention is the radio wave reflector 10 with a reflective surface configured to reflect radio waves, a reflective surface 11d having a curved surface that protrudes toward the side where the radio waves are incident or reflected.

The present application relates to a kind of improved bottom sunlight amount of reflection system parameterization design method, device, equipment and storage medium, wherein improved bottom sunlight amount of reflection system parameterization design method includes the following steps: constructing parameterization platform;Parameterization platform is based on the weather file of preestablished, and the facade of the project volume simulation model is obtained in the light-rich area and the light-scarce area;Select the preliminary parameter of reflection system;Extract the direct sunlight unit vector set in weather file, obtain the light spot area reflected to facade at any time;Based on the position and size of light spot area, parameterization platform adjusts the preliminary parameter of reflection system, obtains the optimal parameter of reflection system at any time;Based on parameterization platform and weather file, the optimal parameter of reflection system at any time can be obtained, so that machine can automatically adjust the pitch angle and horizontal azimuth angle of reflector according to optimal parameter, without real-time recalculation and manual intervention, can respond to the annual change of sunlight in real time.

A system and a method for synchronously detecting thickness and double-side surface profiles that belongs to the technical field of optical measurement. The system includes a light source system, a deflection reflection system, a camera acquisition system, and a processing system. The deflection reflection system includes a decomposition unit and an integration unit. In the system, an optical signal is projected to an upper surface and a lower surface of an object to be measured by the decomposition unit, and then reflected light is converged by the integration unit to form a composite signal, which is captured by a camera to generate an image. The processing system analyzes the image to accurately obtain the thickness and double-side surface profile data of the object.

Disclosed is an illumination system for an interferometer, comprising: a system light source; the steering mirror assembly is used for receiving and reflecting the system light in at least two orthogonal directions; the tracking mechanism is used for tracking the angular orientation of the steering mirror assembly in the two orthogonal directions and providing an electronic signal representing the angular orientation; the focusing lens assembly is used for focusing the system light reflected away from the turning lens assembly to a focusing light spot on a two-dimensional plane corresponding to a source plane of the interferometer; and an electronic controller operably coupled to the steering mirror assembly and configured to cause the focused spot on the source plane to follow a predetermined motion trajectory.

A system includes an optical system, a reflective system, and a detection system. The optical system includes a lens element. The optical system generates a beam of radiation and directs the beam of radiation toward the reflective system. The reflective system directs the beam of radiation toward the lens element. The detection system receives scattered light from the lens element and directs the scattered light to an imaging sensor.

The application discloses an optical system parameter determination method; the method first acquires performance index parameters and constraint conditions of a to-be-output optical system, generates a plurality of plane reflection systems according to the performance index parameters and the constraint conditions, then generates a plurality of spherical reflection systems according to object-image relationships and the plurality of plane reflection systems, finally performs fitting processing on reflection spherical surfaces in each of the spherical reflection systems and searches system surface position parameters according to surface type sequence combination parameters of the to-be-output optical system, and determines optical system parameters of the to-be-output optical system; since the method can automatically output a series of optical system parameters of off-axis reflection systems with different surface type combinations after a user inputs performance index parameters and constraint conditions, full-automatic design of the optical system is realized, and dependence on manual work is reduced.

The invention discloses an eye phototherapy system and device, and the system comprises an illumination system which comprises a light source module which is used for emitting light; the reflecting system is used for reflecting the light to the eyes of a user; and the adjusting system is used for adjusting the position of a light source module in the illumination system and / or adjusting the position of the reflection system so as to adjust the object distance of the light source module. The object distance of the illumination system can be adjusted in the process that the illumination system irradiates the eyes, the purpose of changing the distance between the visual image seen by the eyes of the user and the eyes is achieved, the visual image seen by the user moves in the far and near direction, the myopia and far vision ability of the user can be adjusted, and the sensitivity of the human eyes to the far and near direction is improved.

The present application belongs to the field of precise optical machine adjustment, and relates to an off-axis three-mirror system adjustment optical path and method without intermediate image point. The adjustment optical path comprises an interferometer, a primary mirror, a secondary mirror, a third mirror, a computer holographic grating (CGH), a first flat crystal, a standard sphere and a light screen. The adjustment method requires that the primary mirror is first installed on the system frame, the positioning of the primary mirror and the third mirror is completed by cooperating with the CGH with the optical axis of the interferometer as the reference, the third mirror is then installed on the system frame, the relative position of the third mirror and the primary mirror is adjusted, the CGH is removed, the secondary mirror is installed on the multi-dimensional adjustment platform, the reference surface on the back of the secondary mirror is monitored by the interferometer, and the position of the secondary mirror in the X / Y / Z three-dimensional translation direction and the rotation around the Z axis are adjusted. After the system wavefront meets the design requirements, the secondary mirror is fixed, and the off-axis three-mirror system adjustment is completed. The off-axis three-mirror system adjustment method and the matching computer holographic grating (CGH) are provided, the technical problem of the off-axis reflection system adjustment with high freedom, long period and high difficulty without intermediate image point is solved, the adjustment efficiency is improved, and the adjustment quality is ensured.

The present application relates to the technical field of optical design, and provides a kind of optical system design method based on super-structured lens Seidel aberration, optical system design method based on super-structured lens Seidel aberration includes: determining the Seidel aberration function of super-structured surface;Wherein Seidel aberration function includes spherical aberration coefficient, coma coefficient and astigmatism coefficient;According to Seidel aberration function, determine the objective function;According to the objective function, optimization processing is carried out, and optimization processing result is obtained;According to optimization processing result, the structure parameter of target optical system is determined.Through the above mode, the calculation system of super-structured lens Seidel aberration is established, and the Seidel aberration of super-structured lens calculated by the system can be directly linearly superimposed with the Seidel aberration of traditional catadioptric system, which provides a theoretical basis for the design of composite optical system, and finally realizes the aberration collaborative design of super-structured lens and traditional optical system.

The invention relates to a multilayer electroactive reflective module (1), and to a method for the production thereof, and to an electroactive reflective system (3) for a motor vehicle part (4), the system (3) comprising at least one reflective module (1) according to the invention and the motor vehicle part (4) comprising such a reflective system (3).

A system and a method for synchronously detecting thickness and double-side surface profiles that belongs to the technical field of optical measurement. The system includes a light source system, a deflection reflection system, a camera acquisition system, and a processing system. The deflection reflection system includes a decomposition unit and an integration unit. In the system, an optical signal is projected to an upper surface and a lower surface of an object to be measured by the decomposition unit, and then reflected light is converged by the integration unit to form a composite signal, which is captured by a camera to generate an image. The processing system analyzes the image to accurately obtain the thickness and double-side surface profile data of the object.

It is presented a medical imaging system (1) comprising: a medical imaging device (2) comprising an examination bore (3), a patient support (5), wherein the patient support (5) is movable between an in-bore and an out-bore position, a workflow camera system (7) arranged outside the examination bore (3) and adapted to monitor a patient support area (11) outside the examination bore (3), a reflection system (9) comprising at least one reflective surface (19), wherein the reflection system (9) is adapted to provide a line-of-sight (13) between an area of interest (15) and an external device (17) arrangeable remotely to the area of interest (15) to emit radiation to the area of interest (15) and / or receive radiation from the area of interest (15) during examination, wherein the workflow camera system (7) is adapted to detect an arrangement of the reflection system (9) when the patient support (5) is arranged at the out-bore position and to determine optimized reflection system arrangement information for optimizing an arrangement of the reflection system (9).

The present application relates to a kind of human three-dimensional posture estimation method and device based on catadioptric system.The steps of the method include: video acquisition including human catadioptric system is carried out;The video collected is preprocessed;The geometric model of single mirror stereo system is established, using the geometric model, according to the position of two-dimensional joint node in mirror inside and outside human in catadioptric system, the estimation of human three-dimensional posture is carried out using triangular positioning method;Using epipolar geometry and the symmetry constraint of human joint length, the position of the occluded node of human in image is inferred, and higher quality human three-dimensional joint node estimation result is generated.The present application greatly reduces the uncertainty of camera intrinsic parameter calibration using the prior information of human itself, and the occluded joint node position of human in image is inferred using the epipolar geometry property of catadioptric system and the prior information of human, so as to complete high-quality human three-dimensional posture estimation in catadioptric video.