763 results about "Plane mirror" patented technology

The invention belongs to the technical field of optical detection, and particularly relates to a global power wave aberration prediction-based Ritchey-Common detection method and system, and the method comprises the steps: firstly building a three-dimensional optical model through the parameters of a standard spherical mirror, a to-be-detected plane mirror and an interferometer, and combining a preset Ritchey angle and an out-of-focus / astigmatism coefficient, injecting vibration and temperature noise by using Monte Carlo simulation to generate an enhanced training data space; secondly, constructing a phase error adjustment model based on an adversarial network, and decoupling a mapping relation between an adjustment error and wave aberration distortion through a multi-scale attention mechanism and a radial basis function network to realize adaptive correction of sub-aperture phase data; and finally, splicing sub-aperture phases by using a graph neural network and fusing multi-angle full-aperture measurement data to accurately reconstruct the surface shape of the plane mirror to be measured. According to the invention, through confrontation training and dynamic error compensation of physical constraints, the detection efficiency and reliability of the large-aperture optical element are significantly improved.

The invention discloses a mirror symmetry correlation receiving radiation metasurface and a polarization and complex amplitude regulation and control method thereof. The polarization state of the receiving and radiating end of the metasurface and the complex amplitude regulation and control method from any polarized wave to any polarized wave are regulated and controlled by controlling the in-plane mirror symmetry of the receiving and radiating metasurface patch structure. The polarization and complex amplitude regulation and control method is realized by a receiving and radiating metasurface, the metasurface structure is composed of five layers of metal and four layers of dielectric substrates, and the total thickness is about 0.086 lambda. Wherein the first-layer structure and the fifth-layer structure consist of circular rings with two pairs of arc-shaped grooves etched at the edges and C-shaped grooves etched at the centers; the relative rotation angle of the C-shaped groove and the arc-shaped groove is changed to control the elliptical angle of electromagnetic waves, the overall rotation angle of the C-shaped groove and the arc-shaped groove controls the polarization angle of the electromagnetic waves, and the opening size of the C-shaped groove is used for regulating the transmission amplitude; the transmission phase is regulated by changing the length of the third-layer transmission line; meanwhile, the four layers of dielectric plates are used for isolating radiation and receiving modes. The metasurface and the method have the ultra-thin characteristic and the ultra-high pixel resolution.

The invention discloses a surface shape error self-calibration splicing detection method and system for an X-ray plane mirror, and the method comprises the steps: enabling the value of an additional error source to be zero based on an environment disturbance error and other fixed settings, and carrying out the multi-factor and multi-level self-calibration splicing measurement simulation of measurement parameters, so as to obtain optimized measurement parameters and errors; carrying out single-factor multi-level self-calibration splicing measurement simulation on each additional error source based on the optimized measurement parameters to obtain errors caused by each additional error source; calculating an error control level required by each additional error source; carrying out self-calibration splicing measurement simulation according to the optimized measurement parameters and the error control level of each additional error source, and exiting if the measurement error obtained by simulation meets the precision requirement; otherwise, more strict measurement parameters and additional error source control levels are selected, and iteration is continued until the precision meets the requirement. The invention aims to determine the error control level and the main test parameters required by the main error source of the X-ray plane mirror.

The utility model discloses an auxiliary cavity adjusting device for a laser gyroscope, which comprises a He-Ne laser, a collimation laser, an adjustable first reflecting mirror, a semi-transparent semi-reflecting mirror, a second reflecting mirror, a third reflecting mirror, an imaging mechanism and a light beam coincidence verification structure, and is characterized in that the collimation laser is arranged on the right side of a cavity to be adjusted and corresponds to a left upper plane mirror of the cavity to be adjusted; the first reflecting mirror and the third reflecting mirror are located between the cavity to be adjusted and the collimating laser, the semi-transparent and semi-reflecting mirror is located between the second reflecting mirror and the He-Ne laser, the light beam coincidence verification structure is movably located between the semi-transparent and semi-reflecting mirror and the second reflecting mirror, the He-Ne laser is located right above the collimating laser, and the He-Ne laser is located right above the collimating laser. The semi-transparent semi-reflecting mirror is located over the first reflecting mirror, the second reflecting mirror is located over the third reflecting mirror, and the imaging mechanism is located on the right side of the cavity to be adjusted and corresponds to a left lower plane mirror of the cavity to be adjusted. According to the utility model, the cavity adjusting efficiency and accuracy of the laser gyroscope can be improved.

The invention discloses an optical probe of a closed space lithium battery thermal runaway gas real-time spectrum monitoring system, and the optical probe comprises a laser, Raman scattering light emitted by the laser is emitted in parallel through a collimating mirror, enters a narrow band filter, is reflected by a plane mirror, enters a dichroscope for refraction, and is reflected by a light source. The target detection objective lens gathers on a detected target; raman scattering light returned by the detected target passes through an objective lens target detector and a dichroscope, is modulated by a long-wave-pass optical filter, and is converged into an optical fiber receiving end through a Raman scattering light collecting mirror to enter a spectrograph system. The Raman spectrum technology is applied to monitoring gas component changes in the electrochemical reaction process when the lithium battery is charged and discharged in the closed space, and the lithium battery thermal runaway real-time monitoring based on the Raman spectrum technology can provide a guarantee for the thermal runaway risk in the transportation and storage process of the lithium battery.

The invention relates to the technical field of optical design, and particularly provides an optical system polarization aberration compensation method, computer equipment and a storage medium, at least one plane mirror is additionally arranged in a to-be-compensated optical system, the plane mirror is arranged in front of an image plane of the optical system, and the spatial attitude of each plane mirror is used as a free variable to compensate the polarization aberration of the optical system. In the optional range of the spatial attitudes of the plane mirrors, the spatial attitude of each plane mirror is adjusted, and the compensated polarization aberration of the optical system meets the preset requirement by optimizing the spatial attitude of the iterative plane mirrors, so that the polarization aberration of the optical system can be compensated on the premise of not changing the wave aberration of the optical system and not occupying the degree of freedom of design. And the polarization aberration of the optical system is greatly reduced.

The invention relates to the field of optical detection, in particular to an interference confocal measurement system based on space coding and a measurement method thereof.White light generated by a light source is collimated through a first collimating lens and then divided into S polarized light and P polarized light through a polarization splitting prism, the S polarized light enters a reference plane mirror through a first quarter-wave plate, and the P polarized light enters a second quarter-wave plate; p polarized light enters a blazed grating through a second quarter-wave plate for transverse dispersion and then is changed into monochromatic polarized light with different wavelengths and the same focal length through a first achromatic lens, and the monochromatic polarized light and the monochromatic polarized light are jointly focused at the same depth position of an object to be measured. Information of the object to be measured is carried and returned to the polarization splitting prism, two beams of polarized light are combined and then focused on a target surface of a photoelectric detector of an imaging spectrometer with a mask plate through a focusing lens, an interference image of the object to be measured is obtained, and spectrum and interference analysis is carried out. According to the invention, the transverse scanning speed can be improved, the measurement time can be shortened, and the resolution can be improved.

The utility model provides a scanning module and a scanning laser radar, and relates to the technical field of laser radars. The scanning module comprises a refracting optical element, the refracting optical element has a preset incident direction and a preset refracting direction, the refracting optical element comprises a plane mirror, the plane mirror has an emergent surface, the emergent surface is provided with a metasurface, and a refracting layer is formed on the metasurface; or, a microprism array is distributed on the emergent surface, and the microprism array is limited to form a refraction layer; wherein the refraction layer is used for refracting a light beam incident along a preset incident direction, so that the light beam is emitted along a preset refraction direction. According to the invention, by improving the scanning module of the laser radar, the stability of the scanning module can be improved, and a large pitching field angle can be scanned.

The invention belongs to the field of solar photovoltaics, and provides a CCLFR concentrating solar photovoltaic system and power generation equipment. The CCLFR concentrating solar photovoltaic system comprises a CCLFR concentrator, a supporting structure and PV assemblies which are arranged from bottom to top, wherein the PV assemblies are symmetrical left and right; the CCLFR condenser is of an axisymmetric structure and is a condensing mirror field formed by alternately arranging a plurality of plane mirrors; each plane mirror is used for reflecting incident light to the surface of the corresponding PV assembly; wherein the layout of each plane mirror is related to the width of the battery, the placement height of the photovoltaic battery, the inclination angle of the photovoltaic battery, the inclination angle of the mirror surface, the X-axis coordinate value of the mirror surface end point, the included angle between the reflection light of the mirror surface end point and the X axis, the width of the mirror surface, the width of the mirror field and the transverse distance between two adjacent mirror surfaces.

The invention belongs to the field of optical detection, and particularly relates to a synchronous calibration method for a geometric pose and an optical axis error of a reflective phase deflection system, which comprises the following steps of: taking a plane mirror pose as a reference, establishing redundant geometric constraints under a plurality of poses through mirror image reflection, and jointly solving geometric external parameters of the system; and meanwhile, a reverse ray tracing model and a normal integral model are synchronously constructed in a calibration stage, surface shape data are actually measured by combining an interferometer, a system optical axis error field is explicitly stripped, and decoupling separation of a system structure error and a surface shape error is realized. According to the method, the system building process is greatly simplified, the dependence of a high-precision mechanical auxiliary device is avoided, and the overall detection precision and the low-frequency error control capability of the reflective phase deflection system are effectively improved by synchronously modeling and compensating the optical axis error of the system in the calibration stage; and a technical basis with engineering adaptability is provided for high-precision free-form surface optical detection.

The invention provides a phase difference coherent Fourier scattering surface particle detection device and method, belongs to the technical field of flexible substrate surface particle detection, and solves the problem of low nano-scale particle detection sensitivity under the condition of low illumination power of a visible light band. The detection device comprises a laser, a collimating lens, a first diaphragm, a polarization state modulation module, a first beam splitter prism, a plane mirror, a piezoelectric actuator, an infinite correction microscope objective, a sample, a three-dimensional piezoelectric scanning table, a two-dimensional coarse adjustment displacement table, a second beam splitter prism, a tube lens, a camera, a wide-field illumination light source, a second diaphragm, a first lens, a third diaphragm and a second lens. The system comprises a two-quadrant photoelectric detector, a weak signal amplification circuit, a data acquisition module and a computer control system.

The invention discloses a transparent glass surface shape measuring device and a transparent glass surface shape measuring method based on stereoscopic deflection, a plane mirror is introduced to complete calibration work, global system parameters are optimized according to re-projection results of the plane mirror, system calibration flexibility is improved, and calibration precision is improved. Glass to be detected can be placed at any position in a to-be-detected area on a carrying platform without fixing, a Gray code auxiliary line shift fringe technology is adopted as a coding and unfolding scheme, the coding scheme is completely based on a binary coding method, a modulation graph has the characteristic of spatial separation, coding information is easier to extract, and the coding efficiency is improved. The reflection information of the upper surface of the glass is extracted through a self-adaptive method based on a clustering algorithm, threshold parameters do not need to be set manually, a pure vision scheme is adopted, the method has the advantages of being low in cost, large in dynamic measurement range and the like, and the measurement precision meets the actual industrial measurement requirement.

The invention relates to an installation structure and a precision adjustment method of a long-distance laser target tracking and ranging light path, which are used for high-precision adjustment of a laser emission direction of a space target tracking and ranging light path. And the deviation between the emergent direction of the laser reflected by the three reflectors and the swing angle of the rotary table is minimum. The method comprises the following steps: firstly, leading a pitch axis and an azimuth axis to a plane mirror by using an autocollimator; secondly, a second reflecting mirror and a first reflecting mirror are installed and adjusted through the installation mode of a cushion column and a fastening screw, the grinding amount of the cushion column is calculated according to the back image motion track of an autocollimator or the motion track of a laser imaging point in a measurement camera, the cushion column is ground on the basis, and the purpose of high-precision installation and adjustment is achieved; thirdly, through zero calibration of a visible light camera, a measurement camera and a corner reflector, an adjustment system of a third reflector is built, and adjustment of the third reflector is achieved; finally, the cushion columns and the fastening screws are reinforced through epoxy glue, and the mechanical resistance of the light path is guaranteed.

The invention relates to the technical field of laser, and provides a high-power pulse width repetition frequency tunable laser, which comprises an input and output light path configured to input seed light and output amplified laser; a regenerative amplifier optical path configured to amplify the input seed light; and the pulse width compression module is configured to perform pulse width compression on the amplified seed light and output high-power pulse laser with tunable pulse width, and the pulse width compression module comprises a third polarizing beam splitter, a third 1 / 2 wave plate, a first electric control transverse movement plane mirror, a second electric control transverse movement plane mirror, a nonlinear crystal and a fourth plane mirror. On the basis of a nonlinear crystal multi-pass compression method, a high-power disc laser is built, pulse width compression is carried out on an annular cavity which contains a nonlinear crystal and a 1 / 2 wave plate or is added into a Pockels cell, and a high-power pulse width repetition frequency tunable pulse string is finally obtained by transversely moving a plane mirror through electric control.

The invention relates to a hundred-milliwatt high-power high-repetition-frequency terahertz strong source generating device at room temperature, belongs to the technical field of nonlinear optical frequency conversion, and solves the problems that the terahertz conversion rate is low and additional cooling equipment is needed in the prior art. The beam expanding lens group is used for carrying out light spot beam expanding on the femtosecond pumping laser until the diameter of a light spot is twice of the original diameter; the plane mirror group is used for guiding the pump laser after beam expansion; the first half-wave plate, the reflective diffraction grating, the gold reflector and the third ultrafast reflector are used for adjusting polarization and diffraction reflection; the 4-f telescope imaging lens group is used for reducing the spot diameter of the received pump laser and imaging the pump laser to the lithium niobate crystal; the lithium niobate crystal generates terahertz pulse radiation in the direction perpendicular to the wavefront; the terahertz collection module receives and focuses the terahertz pulse radiation; and the measuring device is used for receiving the focused terahertz pulse radiation for measurement.

The invention discloses a laser vibration meter series reciprocating type optical frequency modulation calibration method and device, and belongs to the field of photoelectric measurement. The calibration device is mainly composed of a calibrated laser vibration meter, a first acousto-optic modulator, a second acousto-optic modulator, a lens, a first sinusoidal signal source, a second sinusoidal signal source, an FM signal source and a plane mirror. Aiming at a laser signal emitted by the laser vibration meter, the reversibility characteristic of a light path is utilized, a straight-line-shaped light path structure is used, a secondary light frequency modulation mode of the same group of optical devices is combined with secondary light frequency translation to realize output frequency translation and modulation control of the laser vibration meter, and a laser Doppler effect caused by different vibration waveform magnitude values is simulated. And the modulated laser is completely returned to the calibrated laser vibration meter in the original path, so that the change waveform of the vibration velocity value is replaced by the change waveform of the frequency value, and the calibration of the laser vibration meter is realized. The device has the advantages of portability, wide frequency range, wide amplitude range calibration, high precision and good stability.

The invention discloses an image rotation detection and image rotation elimination adjustment method applied to a laser communication optical system, belongs to the technical field of space laser communication, and solves the problem that the space layout compactness, link energy transmittance and the like of the laser communication system are influenced by adopting a traditional rotation elimination device such as a Dove prism and a K mirror. The positions and angles of the left side collimator and the right side collimator are respectively adjusted to realize coaxial and detection reference transmission; placing the detected laser communication system between the two collimators, and adjusting a rotary table pitch angle of the laser communication system to enable a telescope of the laser communication system to be respectively aligned with the two collimators; extracting and recording light spot centroid coordinates of laser emitted by the two light tubes focused on the area-array camera of the laser communication system; calculating to obtain an image rotation angle; and adjusting the angle of a plane mirror in the laser communication system and carrying out iterative detection until the image rotation angle is reduced to meet the design requirement, thereby completing the adjustment work of the image rotation of the pitch axis of the detected laser communication system.

The invention belongs to the technical field of optical adjustment of large-aperture telescopes, and particularly relates to a device and a method for in-situ measurement of optical axis errors of a large-aperture telescope in an external field. The method comprises the following steps: S1, roughly adjusting the four-dimensional adjusting base to enable the auto-collimation light pipe to be aligned with the center of a pitch axis of a to-be-measured piece; s2, rotating the pitch axis of the to-be-measured piece, and adjusting the angle inclination adjusting mechanism to enable the reflecting surface of the plane mirror to be perpendicular to the optical axis of the auto-collimation light pipe, and at the moment, enabling the optical axis of the auto-collimation light pipe to coincide with the pitch axis of the to-be-measured piece; s3, using the to-be-detected piece to track a natural star, when the natural star is located at the center of the detector target surface of the to-be-detected piece, rotating the rotatable pentaprism mechanism to enable the third window to be aligned with the natural star, and enabling the natural star to be imaged on the detector target surface of the auto-collimation light pipe and the detector target surface of the to-be-detected piece at the same time; and S4, calculating a visual axis error of the to-be-measured piece based on the imaging track of the natural star. According to the invention, the process can be simplified, the efficiency can be improved, and the large-aperture telescope optical axis difference can be measured in real time in an out-field on-site manner.

According to the splicing type Ritchey-Common detection method and system based on neural network model training, the sensitivity rules of aberration orders and Ritchey angles are combined, angle differentiation configuration is combined with reconstruction of the marginal area weight through a fusion detection model, and therefore on the premise that no sensitive blind area exists, the detection accuracy is improved, and the detection efficiency is improved. The influence of weak edge aberration signals is counteracted, so that the deviation between the detection precision of the edge region and the central region can be remarkably reduced, full-order high-precision detection of large-aperture plane mirror aberration is realized, particularly, the detection precision of the edge region aberration is remarkably improved, and the detection precision of the large-aperture plane mirror aberration is improved. The problems that in a traditional method, the precision deviation between an edge area and a center area is large, and full-order aberration coverage is insufficient are solved.

The invention relates to the technical field of comprehensive utilization of solar energy, in particular to a photovoltaic photo-thermal system capable of comprehensively utilizing solar energy and a preparation method and application thereof, and the photovoltaic photo-thermal system comprises a semitransparent photovoltaic cell, plane mirror glass and a back photovoltaic cell which are sequentially arranged from top to bottom. According to the structure, sunlight can be fully absorbed and utilized through the semitransparent photovoltaic cell, the photoelectric conversion of ultraviolet light and visible light is excellent, precise reflection of infrared light can be further achieved through plane mirror glass, and efficient conversion of photo-thermal energy is promoted. Besides, the back photovoltaic cell arranged below the plane mirror glass can directly absorb direct light, ground reflected light and environment scattered light which are not utilized on the surface of the plane mirror glass, and sufficient collection and conversion of residual light energy are achieved. The defects of spectrum utilization, efficiency improvement, structure optimization and the like in the prior art are overcome, and an efficient and economical solution is provided for a solar comprehensive utilization system.

The invention discloses a surface topography measurement device and method based on polarization phase shift. The device comprises a laser module, a polarization beam splitting and interference module, a polarization beam combining and imaging module, a polarization image acquisition module and a control and reconstruction module. The laser module comprises a monochromatic tunable laser, an optical fiber collimating amplifier and a polarizer; the polarization beam splitting and interference module comprises a polarization beam splitting prism, a first quarter-wave plate, a plane mirror and a second quarter-wave plate; the polarization beam combining and imaging module comprises a polarization splitting prism, a third quarter-wave plate and a telecentric lens; the polarization image acquisition module comprises a micro-polarization array camera and an image processing unit, and the micro-polarization array camera synchronously acquires four polarization interference images through single exposure; and the control and reconstruction module obtains measurement data of the surface topography of the to-be-measured object through a phase unwrapping algorithm and three-dimensional topography reconstruction. According to the invention, high-precision, large-field-of-view, portable and high-efficiency field detection can be realized.

The invention provides an array GM-APD laser radar detection device based on vector light illumination, and aims to solve the technical defects that the characteristic dimension of emitted light is generally low and a receiving system is not optimally designed for polarization scattering characteristics in the existing laser radar technology. The polarization modulator is used for modulating the polarization state of incident linearly polarized light; the collimating and beam expanding lens group is used for collimating and expanding the light beams; and the 1064nm pulse laser is used as a laser source to generate high repetition frequency pulse light. The receiving optical system comprises a curved reflector used for receiving echo light reflected by a target and focusing the echo light; the plane mirror is used for guiding the light beam to the array GM-APD detector; and the array GM-APD detector is used for carrying out digital processing on the light beams. The method is suitable for being applied to work of accurate identification and high-resolution imaging of a target.

Polarization BRDF characteristic measuring device and method, belong to optical measurement technical field, the present application is to solve the existing BRDF or polarization BRDF measurement slow, low efficiency problem of measurement.The scheme of the present application: the laser light source at the second focal point emits laser light vertically through the circularly polarized light generating system and the polarizing system, the circularly polarized light generating system converts the laser light emitted by the laser light source into circularly polarized light, the polarizing system quantitatively changes the polarization state of the circularly polarized light to form the measuring incident light, the incident light is transmitted through the transmission light of the half mirror, and is reflected by the ellipsoidal mirror to the surface of the sample to be measured at the first focal point, the reflected light wave of the surface of the sample to be measured is reflected again by the inner surface of the ellipsoidal mirror, and is transmitted to the second focal point direction and is reflected by the half mirror, and the reflected light wave is converged to the third focal point of the measuring system through the polarizing system, the polarizing system is adjusted with the polarizing system, and the polarization BRDF characteristic of the sample to be measured is measured.

The invention belongs to the technical field of reflector production, and particularly relates to a lifting sheet taking table structure for mirror plating sampling inspection of a plane reflector, which comprises a lifting mechanism, a lifting mechanism, a conveying mechanism and a steering mechanism, the lifting mechanism is used for controlling the height of a reflector to be sampled during discharging and comprises a base and a lifting table located above the base in a lifting mode. The lifting mechanism is used for lifting a reflector to be subjected to spot check and comprises at least two U-shaped frames which are arranged above the lifting table at equal intervals and arranged in a transverse row, and rotating shafts are rotationally arranged on the inner sides of the U-shaped frames through bearings. The multi-direction discharging device can achieve multi-direction discharging, does not need a plurality of conveying devices, can directly adapt to multi-station sampling inspection or emergency discharging requirements, reduces equipment investment, is compact in layout, reduces occupied space, integrates a lifting mechanism, a lifting mechanism, a conveying mechanism and a steering mechanism on the same base, simplifies control logic, reduces operation difficulty and improves production efficiency. And the transportation stability of the reflecting mirror is improved.

The invention discloses a wide-temperature-range adaptive medium-wave infrared slit-free spectrometer, and solves the technical problems that the energy consumption of the slit-free spectrometer is high and the size and the weight are difficult to miniaturize due to the fact that an integral refrigeration method needs to depend on large refrigeration equipment in the prior art, and the imaging quality of the slit-free spectrometer is seriously deteriorated due to a local refrigeration method. Comprising a front telescope system group, a light splitting system group, a plane mirror, a relay system group and a refrigeration type detector optical system group which are sequentially arranged along the propagation direction of an object space imaging light beam. The movable distance of the detector is set in the range, so that the slit-free spectrometer adapts to the change of the temperature gradient of the first temperature interval and the second temperature interval in the range, and the imaging quality is high.

The application provides a high-precision autocollimator based on the Tyman Green interference principle and an angle measuring method, aiming at solving the problem that the prior art cannot continue to break through the existing angle measuring precision due to the limitation of geometric optical principle and the influence of environmental factors. The autocollimator comprises a laser, a filtering collimation module, a beam splitter, a reference mirror, a plane mirror, a detector and a data acquisition and processing computer. After the autocollimator is leveled, the plane mirror is placed on a turntable to be measured, and the measurement is carried out when the turntable has no rotation angle and has a rotation angle, so that the laser is emitted to the filtering collimation module to be emitted as monochromatic parallel light to the beam splitter and is divided into two paths. One path is reflected by the plane mirror and then passes through the beam splitter to reach the detector again. The other path is reflected by the reference mirror and then reflected by the beam splitter to reach the detector again. The two beams interfere on the target surface of the detector, the detector records the interference image and uploads it to the computer to calculate the interference fringe offset, so that the angle measurement is completed.

The invention relates to a laser radar optical axis on-line calibration system, which comprises a laser light source, an APD receiving device arranged on the laser light source, a collimator arranged on one side of the laser light source, a first beam splitter prism and a second beam splitter prism arranged in one end of the collimator, and an off-axis parabolic mirror arranged in the other end of the collimator, a plane mirror is arranged in the collimator, a diffuse reflection plate is arranged below the plane mirror, a first camera is arranged in the collimator and located below the second beam splitter prism, and a light supplementing lamp source is arranged above the second beam splitter prism. The camera is combined with the beam splitter prism, real-time visual monitoring of laser spots is achieved, online visual calibration of the optical axis is achieved, the optical axis calibration efficiency can be greatly improved, an off-axis reflection type optical path structure is adopted, the calibration device is compact in structure, space is saved, and the installation and adjustment space can be reduced.

The invention relates to a large-aperture anti-interference interference detection device based on a Michelson interference architecture. The large-aperture anti-interference interference detection device comprises a light beam shaping module, an interference assembly and an imaging assembly, the interference assembly comprises a first quarter-wave plate, a first polarization splitting prism, a second quarter-wave plate, a second polarization splitting prism, a third quarter-wave plate and a concave reflector which are arranged on a main light path; a fourth quarter-wave plate and an optical flat are arranged on a sample arm light path of the second polarization splitting prism; and a plane mirror is arranged on a reference arm light path of the second polarization splitting prism. According to the invention, interference detection data of a to-be-detected sample in a high-dynamic environment is obtained in a dynamic self-compensation mode; interference fringe information is obtained through transmission of the large-aperture imaging assembly; the problems of phase noise and interference contrast reduction induced by environmental disturbance are eliminated; the method can be used for high-precision surface type detection of a to-be-detected sample with a reflecting surface characteristic, and is particularly suitable for resonant cavities such as a disc laser with a jitter air wedge characteristic and the like.

The invention relates to the technical field of medical instruments, in particular to a double-sided anti-fog amplification mouth mirror which comprises a mirror body, a rotary connecting mechanism, a micro-channel cleaning system and a handle assembly. A lens main body is formed by fixing a plane mirror (A surface) and an aspheric magnifying lens (B surface) in a back-to-back manner, and a steering engine drives a central connecting rod to realize quick switching of double functions. The lens body is further provided with a heating anti-fog module, the micro-channel system is integrated in the lens frame, the annular distribution cavity is of a double-layer independent structure, the upper layer is communicated with the inclined spraying holes, normal saline is directionally sprayed for preventing fog and removing dirt, and the surface of the lens body is clear through heating of the heating anti-fog module. And the lower layer is communicated with a suction hole to recycle dirt under negative pressure. The handle is integrated with a control button, a foot switch controls washing / suction separately, and single-hand operation is achieved. The problems of view limitation, mirror surface fogging, pollution and single function are systematically solved, and the diagnosis and treatment efficiency and accuracy are remarkably improved.

The invention discloses a specular reflection-based color taxis measuring and reporting device with a quick roll changing function, and relates to the field of color taxis measuring and reporting, and the specular reflection-based color taxis measuring and reporting device is characterized in that a photovoltaic panel is mounted at the top of a mounting shell, the photovoltaic panel is fixedly mounted at the top of the mounting shell, and a plane mirror is mounted below the photovoltaic panel; the plane mirror is rotationally installed on the front face of the installation shell, and an insect trapping inner groove is formed in the front face of the installation shell. According to the color taxis measuring and reporting device with the quick roll changing function based on mirror reflection, when a sticky insect roll plate needs to be replaced, a driving motor is started, the driving motor drives a fixedly-installed driving shaft to rotate, and the tail end of the sticky insect roll plate is fixed to the outer portion of the driving shaft, so that the sticky insect roll plate is driven along with rotation; the driven shaft and the guide shaft which are in sliding contact with each other are simultaneously driven by the rotation of the insect sticking rolling plate, the insect sticking rolling plate is extended and replaced through the driven shaft fixed at the other end, and the used insect sticking rolling plate is rotated and recycled by the driving shaft.