67 results about "Optical test" patented technology

The invention relates to a projection unit (110) for projecting a test pattern (140). Using the test pattern (140), the sharpness properties of an optical test object (X) can be tested. The projection unit (110) comprises a diffractive optical element shaped to generate a plurality of virtual test objects (142, 143) as the test pattern (140) in response to different excitation light (125, 135) coupled into the projection unit (110) simultaneously from one or more light sources (120, 130). Different of the test objects (142, 143) are arranged in different focal planes and at different solid angles from the perspective of the test object (X).

Optical networks and methods associated with optical networks for verifying network continuity. A method for verifying network continuity includes providing a fiber Bragg grating (FBG) device at a cable associated with a network, wherein the FBG device is configured to reflect a λ1 wavelength; sending an optical test signal into the cable from a location upstream of the FBG device, the optical test signal having a λ1 wavelength; and detecting a reflected signal associated with the λ1 wavelength to verify network connectivity to the FBG device and measure network insertion loss.

The invention provides a CD-ROM integrated light-emitting device detection device and a detection method thereof.The CD-ROM integrated light-emitting device comprises a carrier plate, an LED chip, a driving chip and a plurality of pins, the detection device comprises a workbench, a visual mechanism, a probe mechanism and an integrating sphere, the workbench comprises a transparent bearing plate, and when the CD-ROM integrated light-emitting device is borne on the transparent bearing plate, the LED chip is driven by the probe mechanism to rotate; the LED chip is positioned on one side, close to the transparent bearing plate, of the carrier plate; the visual mechanism is arranged above the transparent bearing plate and is used for acquiring image information; the probe mechanism is used for electrically connecting a probe with a pin in the CD-ROM integrated light-emitting device according to the image information so as to carry out an electrical test on the CD-ROM integrated light-emitting device; the integrating sphere is arranged below the transparent bearing plate and used for receiving emergent light of the LED chip so as to carry out optical testing on the CD-ROM integrated light-emitting device, and the detection equipment and the detection method of the CD-ROM integrated light-emitting device have the advantage of being high in photoelectric testing efficiency.

The present invention relates to an optical coupling module (105) for testing an element (135) to be tested, the optical coupling module (105) comprising a module carrier (107) having a test-signal portion (110) for emitting an optical test signal (125) to a coupling region (130) of the element (135) to be tested or for receiving an optical test signal (125) from the coupling region (130) of the element (135) to be tested, and a camera system (140) fixed to the module carrier (107) for identifying the position of the coupling region (130) of the element (135) to be tested in relation to the module carrier (105).

The utility model relates to a lamp test technical field, concretely is an aviation obstruction light optical testing device, including the casing, the front end of casing is provided with the light source, the front end of casing still is provided with the transparent baffle of covering light source, and the casing cooperation transparent baffle is fully closed and sets up. The utility model discloses through water pump can drive the heat exchange liquid in the water storage tank to flow in the condenser pipe, the heat exchange liquid in the condenser pipe can carry out heat exchange to the high temperature air in the casing at this moment, can provide suitable environment for light source and PLC circuit board, can avoid light source and PLC circuit board to appear the trouble because of high temperature, can improve the service life of light source and PLC circuit board, and the dust is isolated in the closed casing, can make the heat exchange liquid be fully refrigerated by semiconductor refrigeration piece when the heat exchange liquid backflow, and fan cooperation two air holes can guarantee that the air in the casing circulates and flows in the casing and transparent baffle, can make the cold air after heat exchange in the casing circulate and flow, can guarantee the cooling effect.

Optical target (20, 20', 20'', 20''') for testing and / or calibrating a medical imaging device (30), comprising: a target body (40, 40', 40'', 40''') that is additively manufactured; and a dispersion element (55) which is incorporated into the target body (40, 40', 40'', 40''').

The present application relates to the field of optical testing and calibration technology, and more particularly to a kind of multiple range measurement device and method of optical fiber device characteristics, to be measured object accesses measurement access detection module, forms circulating test optical path;Low coherence demodulation detection module generates reference light and test light, reference light returns after being scanned by reflection dynamic scanning module spatial optical path, test light enters measurement access detection module after being scanned by the module, and multiple range circulating transmission is completed with to-be-measured object, and the output of test light after transmission returns low coherence demodulation detection module after being scanned by the module again;The module interferes with the received reference light and test light, and obtains measurement result.The present application is tested by multiple range optical fiber ring test structure, integrates commonly used optical fiber and device characteristics, perfects access mode, cooperates calibration correction model, realizes multiple types, multiple parameters, high precision, high reliability and low cost test target.

The aperture aperture calibration and testing system and method provided in this application describe a system where a control module controls an aperture motor via signals. The aperture motor adjusts the aperture mechanism to form the light-transmitting aperture. A camera captures an image of the light-transmitting aperture. The control module processes the image to calculate the actual light-transmitting diameter, and then uses optical formulas to calculate the aperture F-number. This eliminates the need for measurement in imaging instruments or optical test stands, resulting in a small, low-cost system that facilitates rapid deployment and mass production on production lines. The system employs an independent testing architecture, directly driving and testing the aperture mechanism without requiring the assembly of the entire lens, thus improving testing flexibility. The method describes adjusting the aperture aperture with the aperture motor, recording the motor's step count, obtaining the actual light-transmitting diameter through image processing, and calculating the aperture F-number by combining the camera's focal length with the actual light-transmitting diameter, achieving measurement without the need for testing equipment.

The utility model belongs to the technical field of optical lifting supports, and particularly relates to an optical support for optical testing, which comprises a frame, foot cups are in threaded connection with four corners of the bottom of the frame, a driving motor is fixedly mounted on one side of the frame, a screw is fixedly connected with an output end of the driving motor, and the screw is fixedly connected with an output end of the driving motor. A screw block is connected to the screw rod in a threaded mode, a movable plate is fixedly connected to the screw block, and a guide rail is fixedly connected to the upper portion of the movable plate. According to the utility model, the plane position of the optical camera can be accurately adjusted through the driving motor, the screw rod, the screw block and other structures, the problem of inaccurate traditional manual adjustment is solved, the sliding block is matched with the sliding rod, and the guide rail is matched with the movable seat, so that the movement stability is ensured, the requirement of high-precision test on equipment stability is met, and the foot cup can adjust the stability of the bracket; the supporting rod is flexible in installation direction, adapts to different testing scenes, improves the precision, convenience and efficiency of optical testing, and effectively fills the blank in the prior art.

The invention belongs to the technical field of converter valve testing, and discloses a testing system and method for a converter valve thyristor control unit board card, a main control module analyzes a testing requirement and generates a control instruction, a to-be-tested board card is connected through a multi-type interface adaptation module, a signal simulation unit outputs electric and optical testing excitation signals, and the to-be-tested board card is connected with a thyristor control unit. The data acquisition unit captures a feedback signal and returns the feedback signal to the master control unit, and external data synchronization and result output are realized in combination with the communication interaction module; according to the test system, the space occupation is obviously optimized, and the multi-device cooperation requirement is eliminated; manual voltage regulation operation is replaced by full-automatic signal control, so that the safety risk is reduced; a flexible and programmable excitation signal generation and acquisition mechanism supports rapid parameter adaptation; automatic data acquisition and processing completely eradicate personal errors, and human input is reduced; the highly integrated system architecture realizes automatic propulsion of the whole test process and report generation, and greatly improves the test efficiency and reliability.

The application discloses an optical calibration device and a method for calibrating a coordinate system in which an optical platform is located. The optical calibration device can calibrate the positions of the optical platform and an analyzer in the optical path of the optical platform, so as to ensure the accuracy and stability of optical testing. Compared with the level and high-precision mechanical processing used in the prior art, the optical calibration device can effectively improve the optical measurement accuracy. In addition, the optical calibration device can calibrate the X-axis, Y-axis and Z-axis of the optical platform, and has the characteristics of simplicity and convenience.

The present disclosure shows a conductor correction module for continuous or discrete-time capture of properties of a conductor for electrical signal transmission, wherein the conductor correction module comprises a bidirectional optical interface couplable to at least one optical conductor of the conductor, an optical splitter comprising an input interface, a bidirectional test signal interface, and an output interface, and a property measurement unit coupled to the output interface of the optical splitter. The optical splitter is configured to receive an optical test signal and output a first part of the test signal via the bidirectional test signal interface and a second part of the test signal via the output interface. The optical splitter is further configured to output the received reflected optical signal via the output interface, wherein the property measurement unit determines at least one physical property of the conductor.

The application provides a method for growing WS2 film based on PECVD, and belongs to the technical field of film growth. The application realizes efficient growth of WS2 film by using ionized sulfur source and mixed protective gas Ar, and porous WO3 or WF6 as a precursor. The method steps of the application include: precursor preparation; gas introduction; plasma excitation; film growth; and post-processing. The method can significantly improve the activity of reactants by plasma excitation, so that a faster growth rate can be realized at a similar or even lower temperature. The WS2 film grown by the method has good crystallinity and uniformity, high quality, and is suitable for preparation of high-performance devices, which can be proved by test results such as Raman spectrum, XRD, AFM, and electrical / optical tests.

To provide an optical device capable of illuminating an object by changing the direction of at least a part of a light beam emitted from a light emission part to a light beam in a direction different from the direction of the light beam.SOLUTION: According to an embodiment, an optical device includes a light emission part, a light direction selection part, and an imaging optical element. The light emission part emits a first light beam of a first wavelength spectrum including a first wavelength. The light direction selection section includes a first light direction selection region and a second light direction selection region on a focal plane of the imaging optical element or in the vicinity thereof. A first light beam incident on the first light direction selection region or the second light direction selection region is emitted as a light beam having different optical characteristics depending on the region, and at least one of the regions includes a light direction modifier that modifies a direction of an incident light beam into a different direction and emits the light beam.SELECTED DRAWING: Figure 1

The utility model discloses a kind of optical module test equipment, it is related to optical communication technical field.Optical module test equipment in:first electric test interface is electrically connected with signal transceiver chip;Control chip is electrically connected with optical test device and optical test interface by light testing device;Control chip and signal transceiver chip are electrically connected;Control chip sends first test control signal to signal transceiver chip, and sends second test control signal to optical test device;Optical test device will be converted into second optical signal by first optical signal received through optical test interface, and second optical signal is sent to second to-be-tested optical module by optical test interface;Signal transceiver chip sends test electric signal to first to-be-tested optical module group by first electric test interface;And target electric signal sent by second to-be-tested optical module group is received by first electric test interface.The optical module test equipment provided by the utility model occupies smaller space and area, and failure is easy to troubleshoot, and cost is lower.

The test and measurement system includes one or more remote heads, each configured to be coupled to a respective device under test (DUT) to receive electrical test signals from the DUT, and each of the one or more remote heads includes an electro-optical modulator (EOM) configured to convert the received electrical test signals into optical test signals. An optical interconnect circuit receives the optical test signals from the EOMs of the one or more remote heads and, in response to a control signal, selects one optical test signal from among a plurality of optical test signals to provide to the test and measurement system. The optical interconnect circuit further converts the selected optical test signal into an electrical test signal and provides it to a test port of the test and measurement instrument. A method is also described.

The application belongs to the technical field of optical non-contact measurement, and particularly relates to an optical test test section of a double-layer observation window, which comprises an outer cavity, an inner cavity, an observation window and a blowing device; an outer cavity for cooling airflow circulation is formed between the inner cavity and the outer cavity, and the inner cavity has an inner cavity for high-temperature and high-pressure test airflow circulation; the blowing device comprises a blowing inlet pipe, a fixed wall and a mounting plate; the mounting plate comprises a mounting cylinder and a mounting edge located at one end surface of the mounting cylinder, the mounting edge is sleeved on the inner side of the inner cavity, the fixed wall is mounted between the mounting cylinder and the inner cavity, the fixed wall, the mounting cylinder, the inner cavity and the mounting edge form a blowing cavity, the fixed wall is provided with an air inlet hole, the blowing inlet pipe is connected with the air inlet hole on the fixed wall through the outer cavity and the inner cavity, blowing gas is introduced into the blowing cavity, the mounting edge and the inner wall of the inner cavity form a blowing air gap, and the gas in the blowing cavity is blown to the observation window through the blowing air gap.

The utility model discloses a stage lamp optical testing device, which comprises a testing frame, a first testing plate and a first lifting driving device, the testing frame is provided with a guide rod, the first testing plate is connected with the guide rod, the first lifting driving device is arranged in the testing frame, the first lifting driving device is connected with the first testing plate, and the first testing plate is connected with the first lifting driving device. The first test plate is provided with a first positioning shaft used for positioning the lens disc, and the lens disc is provided with a positioning hole corresponding to the first positioning shaft. According to the utility model, the first lifting driving device is arranged, and the first lifting driving device can drive the first test plate to lift, so that the vertical position of the optical lens can be conveniently adjusted to change the distance between the optical lens and the light source module, and the focusing effect of the optical lens can be conveniently tested; besides, the first testing plate is provided with the first positioning shaft used for positioning the lens disc, so that deviation of the placing position of the lens disc on the first testing plate is well avoided, and the testing result of the optical lens is well guaranteed.

The invention discloses an integrating sphere-based chip test method and an optical test system, and the method comprises the steps: providing an integrating sphere, a first probe and a second probe, the integrating sphere comprises an upper housing and a lower housing which are detachably connected, the upper housing is provided with a first through hole, and the lower housing is provided with a second through hole and a third through hole; the first probe and the second probe respectively extend into the lower shell through the second through hole and the third through hole; placing a to-be-tested unpackaged chip on a bearing table in the lower shell, and enabling a light-emitting surface of the chip to deviate from the bearing table; coupling a first probe to a first bonding pad of the unpackaged chip to be tested and applying a first electric signal, coupling a second probe to a second bonding pad of the unpackaged chip to be tested and applying a second electric signal, and lightening the unpackaged chip to be tested; covering the upper shell on the lower shell; and installing an optical detector in the first through hole, and testing light emitted by the to-be-tested unpackaged chip by using the optical detector. According to the method, the steps of wire bonding, desoldering and the like on the unpackaged chip are not needed, and the chip test loss rate is reduced.

1. The name of the design product: optical test instrument (FHO3300). 2. The use of the design product: the design product is mainly used for OTDR, light source, optical power meter, optical cable survey instrument, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a display module burning method and system integrating optical parameter testing and color gamut calculation, and aims at solving the problems that in the prior art, burning and optical testing procedures are separated, efficiency is low, and manual calculation and judgment are relied on. The method comprises the steps that after Flicker parameter burning is completed, a display module is controlled to sequentially display three-primary-color pictures of red, green and blue; synchronously acquiring brightness data and color coordinate data of each picture through optical test equipment; transmitting the collected data back to a main control unit of the burning equipment, automatically calculating the color gamut area ratio of the display module according to the color coordinate data, and comparing the color gamut area ratio with a preset threshold value to generate a qualified or unqualified judgment result; and finally, automatically generating and storing a structured record table containing all test data and judgment results. According to the method, full-process automation and integration of burning, testing, calculation, judgment and data archiving are realized, the production efficiency and the testing consistency are remarkably improved, and the labor cost and the error rate are reduced.

An optical analyzer (14) is disclosed having at least one light source unit (20), at least one electro-optical modulation unit (32), an optical switch module (30), an optical output port (28) and an optical input port (26). The at least one light source unit (20) comprises a first coherent light source (22) arranged for generating a first optical test signal. The optical input port (26) is arranged for receiving an external optical test signal. The optical switch module (30) is arranged for selectively transmitting the first optical test signal to the optical output port (28) and / or the at least one electro-optical modulation unit (32). The optical signal obtained by the optical switch module (30) is the external optical test signal, the first optical test signal or another optical test signal generated by the at least one light source unit. Further, an optical measurement system is disclosed.

The invention relates to an optical lens precision detection device, which comprises a fixed table, an optical test assembly, a data processing system and a display, and is characterized in that the fixed table comprises a mounting clamp for mounting an optical lens, and the optical test assembly comprises a light source, an optical fiber connecting seat, an optical fiber coupling assembly, an optical fiber annular resonant cavity and a photoelectric detector; the light source is used for emitting detection light beams, the optical fiber connecting base is used for transmitting the detection light beams, the optical fiber coupling assembly is used for coupling the detection light beams out of the optical fiber connecting base, the optical fiber annular resonant cavity is used for performing resonance enhancement on the detection light beams and emitting transmission light, and the photoelectric detector is used for receiving the transmission light of the optical fiber annular resonant cavity. The data processing system is used for receiving and analyzing the intensity change of the transmission light so as to obtain the precision parameter of the optical lens, and the display is used for displaying the precision parameter of the optical lens. The optical testing assembly is used for detecting the optical lens, so that the problems of complicated equipment and unstable measurement result existing in optical lens precision detection are solved.

An analytical method for determining a concentration of an analyte is disclosed. In this method, an image of an optical test strip having a body fluid applied thereto is obtained with a camera of a mobile device. Local temperature information is received at a current location of the mobile device from a temperature source such as a remote weather information service or temperature sensor. Additional local temperature information is received by the mobile device from a thermochromic field provided on the test strip and / or on a color reference card. A processor determines a correction temperature and / or a correction temperature function using the local temperature information. The processor also determines the analyte concentration from the image captured and taking into account the correction temperature information.

The invention discloses a visual filtering mechanism parallelism error calibration test device, which relates to the technical field of optical test equipment and comprises a mounting platform, an autocollimator, a collimator, an adjusting assembly and an image capturer. The optical axis of the collimator coincides with the optical axis of the autocollimator. The adjusting assembly comprises an adjusting mechanism and an optical filter which are connected, the adjusting mechanism is arranged on the mounting platform and used for adjusting the angle of the optical filter, and the optical filter is located between the autocollimator and the collimator; and the image capturer is arranged on the imaging surface of one end, far away from the optical filter, of the autocollimator and is used for receiving a reference image of the autocollimator, a reflection image formed by reflection of the optical filter and a transmission image of the collimator passing through the optical filter. The reflection image, the transmission image and the reference image of the optical filter can be observed through the image capturer, the angle of the optical filter is finely adjusted through the adjusting mechanism until the reflection image, the transmission image and the reference image are roughly overlapped, parallel calibration of the optical filter can be completed, and the device is simple, efficient, time-saving and labor-saving.

The utility model relates to the technical field of crystal testing equipment, in particular to a crystal optical performance testing device which comprises a base. A clamping mechanism is arranged at the top end of the base and comprises a clamping seat, the clamping seat is fixedly connected to the middle of the top end of the base, a clamping block is rotationally connected to the inner side of the clamping seat, clamping cloth is fixedly connected to the tail end of the clamping block, and a protection mechanism is arranged on the outer side of the clamping mechanism. Through the arrangement of the multiple clamping blocks arranged on the inner side of the clamping base in a surrounding mode, the clamping blocks can be combined to form a structure similar to a camera shutter, crystals of different sizes are clamped and fixed through concentric circles of different diameters, and meanwhile the circular structure can provide clamping force for different sides of the crystals; and the crystal particles are automatically positioned to the center of the clamping seat after being clamped, so that the crystal particles are mutually aligned with the test equipment, and the optical test efficiency of the crystal is improved.

The present application relates to the technical field of optical fiber testing, and particularly relates to a device and method for measuring the off-axis degree and divergence angle of a lens optical fiber, comprising an optical fiber clamping and fine adjustment module for clamping and fine adjustment of the optical fiber; an optical testing module for detecting the light beam of the lens optical fiber; and a visual monitoring module for monitoring the position of the side surface of the optical fiber in two axial directions and spatially positioning the end surface of the optical fiber. The present application is based on a beam quality analyzer to develop the testing device and method, which can measure the off-axis degree and divergence angle of the light beam of the lens optical fiber at the same time, thereby effectively solving the problems of how to measure and simultaneously measure the off-axis degree and divergence angle, and achieving the measurement of a large number of products with high measurement efficiency, and meeting the requirements of modern optical fiber testing technology.

The invention relates to a glass assembly and a product. The glass assembly comprises a first light-transmitting plate and ink. The first light-transmitting plate is provided with a first surface. The ink is connected to the first surface. The ink comprises a base layer and an optical matching layer; the base layer is arranged on the first face and comprises a plurality of monodisperse microspheres, and the microspheres are arranged in a face-centered cube mode. The optical matching layer is connected with the base layer, and the optical matching layer is made of organic silicon resin. According to the glass assembly, the base layer is arranged on the first surface, the microspheres of the base layer are arranged in a face-centered cubic mode, the microspheres are high in arrangement precision and good in arrangement uniformity, the full width at half maximum of a reflection peak meets the requirement, and the stability of the reflection performance can be guaranteed; in addition, the optical matching layer can reduce interlayer optical mismatch and optimize reflection performance. Through optical test verification of glass products, the glass has high-transmittance and high-reflection effects and has excellent optical performance.