226 results about "Autocollimator" patented technology

The invention discloses a method and a device for measuring orthogonality of an orthogonal rotary shaft system, and belongs to the technical field of orthogonal rotary shaft system detection. The orthogonal rotary shaft system comprises a first rotary shaft system and a second rotary shaft system; the method comprises the following steps: carrying out axis inclination angle rotation error measurement and attitude fine adjustment by using a CCD (Charge Coupled Device) double-axis autocollimator, and a cubic reference prism and a double-sided optical flat which are respectively fixed with a first rotation shaft system and a second rotation shaft system; setting a reference cross line XY through the double-sided optical flat by using a second rotary shaft system; the cross curve of the reflected light beam of the cubic reference prism is overlapped with the reference cross curve XY by adjusting the mounting positions of the two rotary shaft systems; and rotating the first rotating shaft system, recording an angular deviation value and calculating an orthogonality value of the two rotating shaft systems. According to the invention, the reference drift error of mutual aiming of the two autocollimators is eliminated, the interference of the rotation error of the shaft system on orthogonality measurement is eliminated, and the precision and reliability of the orthogonality measurement of the shaft system are improved on the whole.

The invention discloses an autocollimator noise error compensation method based on a Retinex theory, and belongs to the field of optical measuring instruments. The method comprises the following steps of: 1, combining a Retinex theoretical model with an auto-collimation measurement system, and correspondingly analyzing light source emergent light, system measurement light beams and background noise light of an auto-collimator and an input image, a reflection image and a brightness image of the Retinex theory from the angle of identifying a detection image by a photoelectric detector in an auto-collimation system structure; 2, performing gray processing and logarithmic processing on the acquired input image and the brightness image, and obtaining a difference value to obtain a reflection gray image with image information of the object; and 3, a contrast test is designed for the input image and the reflection image before and after the noise suppression scheme is adopted, the displacement of the diaphragm image in the two images is detected and identified, the error compensation method is analyzed to effectively suppress the interference of background noise on imaging, and the measurement precision and the measurement stability of the autocollimator are improved.

The invention discloses a large-range high-precision angle measurement precision detection device and method for a two-dimensional scanning mechanism. The detection device comprises a two-dimensional scanning mechanism, a multi-tooth indexing table, a photoelectric autocollimator, a marble platform, an angle acquisition circuit, a motion control box, a screw flat plate, a horizontal adjusting gasket, a photoelectric autocollimator mounting tool, an angle acquisition computer, a ground detector and the like. The multi-tooth indexing table is placed on the marble platform plane; the photoelectric autocollimator is mounted on the multi-tooth indexing table through the photoelectric autocollimator mounting tool; a horizontal adjusting gasket is used for adjusting the multi-tooth indexing table and the two-dimensional scanning mechanism to be consistent in parallelism; it is ensured that the photoelectric autocollimator can receive the specular reflection value of the two-dimensional pointing mechanism. The detection method comprises static calibration and dynamic calibration, wherein the static calibration comprises large-period angle precision calibration and small-period angle precision calibration measurement. The invention provides a third-party angle measuring device and a third-party angle measuring method. The third-party angle measuring device can be unfolded around measured equipment and can reach within one arc second.

A shafting rotation precision measuring device and method are suitable for shafting rotation precision measurement of a shaft end assembly, the shafting rotation precision measuring device comprises a lens reflection tool and a rotation precision measuring device from the function aspect, and the readings of a single-shaft photoelectric autocollimator in the horizontal direction and the vertical direction are expanded into Fourier series respectively; first harmonic function calculation is carried out on Fourier series based on a gradienter method, two rectangular coordinates can be obtained, the two components are synthesized, the shaft system rotation precision can be obtained, and the device is simple in structure, convenient to operate and wide in application range. The test verifies and proves that the detection requirement on the rotation precision of the shaft system can be met, and the method has practical engineering significance.

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 optical adjustment testing, in particular to a system and method for adjusting the position degree of a high-precision rotating reflector relative to a reflex reflector component, and the system comprises a four-dimensional angle adjusting table, an autocollimator and a scanning mechanism, and the four-dimensional angle adjusting table is provided with a horizontally arranged optical flat; the autocollimator is arranged right above the optical flat, and the output end of the autocollimator faces downwards; the scanning mechanism comprises a mounting seat, the mounting seat is provided with a high-precision rotating reflector, a reflex reflector part and an adjusting assembly, the high-precision rotating reflector is arranged below the autocollimator, and a reflector surface of the high-precision rotating reflector faces the autocollimator; the reflex reflector component is used for converting a horizontal light beam output by the high-precision rotary reflector into a vertical light beam; the adjusting assembly is used for adjusting the pitch angle and the azimuth angle of the high-precision rotating reflector and adjusting the pitch angle and the azimuth angle of the reflex reflector part. According to the invention, the position precision of the high-precision rotary reflecting mirror and the reflex reflecting mirror component is ensured.

The invention belongs to the technical field of optical precision control, and particularly relates to an automatic calibration system and method for a fast steering mirror sensor, and the calibration method comprises the following steps: S1, carrying out the initialization configuration; s2, generating and sending an instruction sequence; s3, data storage: storing the angle data, fed back by the autocollimator, of the fast steering mirror; s4, dynamic calibration parameters are generated through data segmentation and data fitting; S5, calibration output is carried out; and S6, performing real-time compensation. The calibration system comprises an autocollimator, an upper computer and a fast reflecting mirror controller, a step angle instruction is automatically generated and sent through the upper computer, feedback data of the autocollimator is collected in real time, and first-order or second-order fitting is selected based on data segmentation and model selection to generate dynamic calibration parameters, so that the calibration accuracy of the fast reflecting mirror is improved. Global fitting is replaced by multi-interval independent linear fitting, the characteristic that nonlinearity of the sensor changes along with the angle is adapted, and the compensation precision is improved.

The invention provides a spherical prism optical axis deflection angle detection device which is provided with a base and a supporting structure and comprises a transmission-type coaxial eccentric detection light path and a transmission-type non-coaxial eccentric detection light path. Wherein the transmission-type coaxial eccentric detection light path comprises a collimator, an objective table and a photoelectric centering instrument; the transmission-type non-coaxial eccentric detection light path comprises a photoelectric autocollimator, an objective table and a photoelectric centering instrument; and the two detection light paths share the objective table and the photoelectric centering instrument. The invention also provides a spherical prism optical axis deflection angle detection method, which comprises the following steps of: firstly, selecting a detection light path, then calibrating and calibrating the detection light path, and finally finishing the detection work by using the selected detection light path. The system is designed to be a double-light-path detection system, and detection of the deflection angle of the optical axis of the spherical prism is achieved.

The invention relates to the technical field of photoetching equipment, in particular to a light offset module, a calibration device and a calibration method.The light offset module comprises an integrated tool, an offset mirror and a first diaphragm; the first end of the integrated tool is provided with a first mounting groove, and the second end is provided with a second mounting groove; the offset mirror is embedded in the first mounting groove, and the first diaphragm is arranged in the second mounting groove; a channel extending along the axis of the first diaphragm is arranged in the integrated tool, light emitted by an autocollimator included in the calibration device sequentially passes through the first diaphragm, the channel and the offset mirror, and the offset mirror enables the light to be reflected to the autocollimator in the preset direction. The device is compact in structure, can accurately compensate and calibrate the offset of the light beam in the light path, facilitates accurate and efficient adjustment, and guarantees the quality and reliability of the light beam output by the light source.

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 an inertial platform quartz accelerometer installation error optical calibration method and system. The calibration method comprises the following steps: firstly, completing calibration of a constant zero offset error of a quartz accelerometer; then the horizontal position of the photoelectric autocollimator is adjusted, the inertial platform achieves that the three hexahedron planes are sequentially horizontal through leveling transposition control, the absolute horizontal positions of the silicone oil datum plane and the hexahedron planes are measured through the autocollimator, and test data are obtained and calculated; and finally, uploading and compensating the installation error angle of the quartz accelerometer obtained by calculation, and remeasuring and correcting the leveling precision of each reference surface to realize accurate calibration and compensation of the installation error angle of the quartz accelerometer.

The invention provides an off-axis angle precision measurement method, relates to the technical field of optical measurement, and solves the problems that in the prior art, a mechanical contact type measurement method easily scratches a mirror surface and is low in resolution, an optical interference method depends on expensive elements and is easily interfered by the environment, and an autocollimator rotary table method is limited in measurement range and low in measurement cost. And a laser tracker multi-point calibration method is high in equipment cost and complex in data processing. According to the technical scheme, a photoelectric theodolite, an off-axis mirror and a laser interferometer are coaxially installed, a reference coordinate system is established through the photoelectric theodolite, it is ensured that light beams of the laser interferometer always enter the center of the off-axis mirror by means of a six-dimensional adjusting platform, a detection light path is established, and space coordinates of a calibration point are secondarily measured through the photoelectric theodolite; solving an off-axis angle value by combining a space coordinate transformation algorithm; the device and the method have the advantages of high measurement precision, avoidance of mirror surface damage, high environmental adaptability, large measurement range, high automation degree and the like, and are suitable for off-axis angle precision measurement requirements in optical system manufacturing and debugging.

The present invention discloses a method for coaxial debugging of array lasers, and the process is as follows: a main autocollimator is arranged in front of an array laser output device, the main autocollimator is located in the designed laser beam combining output direction, and the optical axis of the main autocollimator is adjusted to be parallel to the output beam of the first laser of the array laser output device; then a reflector group is arranged between the array laser output device and the main autocollimator, and the two reflectors are adjusted to be parallel to each other and the distance between the two is a set value; a route observation component and a power detection component are arranged between the reflector group and the main autocollimator; firstly, the first laser is turned on, and the reflector group is adjusted to make the output beam coaxial with the optical axis of the main autocollimator; then, the remaining lasers are turned on one by one, and their positions are first adjusted to make their beams coaxial with the first laser beam space, and then the beams are adjusted to make the beams coherent, and the beam combining is completed in sequence. This method can accurately adjust the positional relationship of each device and realize high-precision beam combining.

The photoelectric autocollimator comprises a beam splitter prism, a collimating objective lens located on one side, facing an object to be measured, of the beam splitter prism, a collimating ocular lens located on one side, back to the object to be measured, of the beam splitter prism, and a filter lens located on one side, facing an image plane of a detector, of the beam splitter prism, a reflector is arranged on one side, back to the beam splitter prism, of the collimator objective, the collimator objective is a transmission-type double-telecentric optical mechanism, and an aperture diaphragm is arranged in the middle of the collimator objective; a light source is arranged on one side, back to the spectroscope, of the collimating eyepiece, and the collimating eyepiece is a Cranisiden eyepiece; the centers of the collimator objective, the beam splitter prism and the collimator eyepiece are located on the same optical axis. Through transmission-type double-telecentric scheme design and athermal design calculation, different types of glass materials and structural materials are selected to be matched, and the temperature influence is eliminated through reasonable combination of the glass materials and the structural materials, so that the optical system is not influenced by the environment temperature, and the athermal effect is achieved.

The invention discloses a method for installing and adjusting a double-reading-head photoelectric encoder on a gyro accelerometer, which comprises the following steps of: initially installing a coded disc base and an optical component, measuring the size, adjusting a grating gap, reinstalling the optical component, installing the coded disc component, testing a signal, fastening the optical component and the coded disc component, installing a receiving plate and arranging a wire harness. The oscilloscope is used for observing sine and cosine signals and a zero position, the industrial personal computer is used for reading an angle value given by the signal processing and output circuit, the installation accuracy of the double-reading-head photoelectric encoder is judged, and the purpose that the double-reading-head photoelectric encoder is installed on the gyro accelerometer in a high-precision mode is achieved. The problem of high-precision installation of the double-reading-head photoelectric encoder in the limited space of the gyro accelerometer is solved, the installation and adjustment operation is simpler and more efficient, particularly, high-precision optical methods such as a multi-face prism and an autocollimator are not needed, and the method is more suitable for completing installation and adjustment or maintenance in off-line scenes such as a user site.

The invention provides a high-precision autocollimator based on a Twyman Green interference principle and an angle measurement method, and aims to solve the problem that the existing angle measurement precision cannot be continuously broken through due to the limitation of a geometrical optics principle and the influence of environmental factors in the prior art. The autocollimator comprises a laser, a filtering collimation module, a spectroscope, a reference reflector, a plane reflector, a detector and a data acquisition and processing computer. After the autocollimator is leveled, the plane mirror is placed on a rotary table to be measured, measurement is carried out when the plane mirror does not have a rotation angle and when the plane mirror has a rotation angle, laser is emitted into the filtering collimation module and then is emitted to the spectroscope in the form of monochromatic parallel light and is divided into two paths, and one path is reflected by the plane mirror and then passes through the spectroscope again to reach the detector; the other path is reflected by the reference reflector and then reflected by the spectroscope to the detector; and the two beams of light generate interference on the target surface of the detector, and the detector records an interference image and uploads the interference image to a computer to calculate the offset of interference fringes, thereby completing angle measurement.

The invention discloses an intelligent assembling method of a glass reference mirror, which utilizes an intelligent mechanical arm to complete the assembling of the glass reference mirror, utilizes a set of six-degree-of-freedom intelligent mechanical arm to complete the accurate position control of the glass reference mirror, and utilizes two sets of double-shaft photoelectric autocollimators to measure the orientation of the reference mirror. The position of the mechanical arm is adjusted through a central control closed-loop algorithm, and the glued surface of the reference mirror is aligned with the reference mirror mounting surface of the inertial attitude sensor, so that the reading of a reference collimator is the lowest, namely the precision is the highest, and the actual measurement precision can be within 15 seconds of arc. Meanwhile, by using the system, the thickness of the epoxy adhesive layer can be controlled through a known reference surface, and the temperature cycle of-35 DEG C to 70 DEG C can be resisted when the thickness of the adhesive film is 0.20 mm to 0.60 mm through test verification.

The invention discloses a rapid reflector angle automatic calibration system and method based on a PSD sensor, and belongs to the technical field of rapid reflector surface calibration. The method solves the technical problems of low efficiency and low accuracy of rapid mirror surface angle calibration in the prior art. The invention provides a high-efficiency automatic calibration method by utilizing the characteristics of high resolution and quick response of a PSD (Phase Sensitive Detector). The narrow-band optical filter is combined with power ripples to remove noise influence, so that the problem that the position calculation of the PSD sensor is easily interfered by photoelectric noise is effectively inhibited, and the measurement stability is improved. In the calibration process, through real-time data filtering and automatic acquisition, the influence of manual intervention and observation errors caused by the manual intervention is reduced. Compared with a traditional calibration method, the method does not need an autocollimator, and is higher in calibration speed and lower in cost. According to the invention, the limitation of application of the PSD as a linear displacement sensor in high-precision angle measurement is broken through, and an efficient and low-cost solution is provided for quick calibration of the angle of the reflector.

The invention concerns a method for fabricating blanks for light-guide optical elements (1) from a compound glass stack (3), the compound glass stack (3) comprising a multitude of glass plates (5) bonded together, wherein light reflecting layers (7) are arranged between the glass plates (5), wherein the method comprises cutting slices (9) from the compound glass stack (3) along parallel cutting planes (11). The compound glass stack (3) is aligned to the cutting planes (11) so that the light reflecting layers (7) have a defined orientation with respect to the side faces (13, 15) of the slices (9) after cutting. The compound glass stack (3) has a plane (16) having a defined orientation with respect to the light reflecting layers (7) within the compound glass stack (3), so that the light reflecting layers (7) within the slices (9) are correctly oriented when the cutting planes (11) run parallel to the plane (16) of the compound glass stack (3). The alignment of the compound glass stack (3) to the cutting planes (11) comprises - adjusting the tilt angles of the plane (16) of the compound glass stack (3) with respect to the cutting planes (11) using an autocollimator (22), and - adjusting the position of the compound glass stack (3) in a direction obliquely, preferably perpendicular to the cutting planes (11). The compound glass stack (3) is held fixed to a holder (23) in its aligned orientation and cut into slices (9), the slices (9) forming blanks for light-guide optical elements (1).

The application belongs to the technical field of double-head photoelectric autocollimator equipment, and particularly relates to a double-head photoelectric autocollimator, which comprises a photoelectric autocollimator body, object lens barrels are arranged on the two sides of the photoelectric autocollimator body, lenses are arranged in the object lens barrels, a sealing cover is hingedly arranged on one side of the object lens barrel, a mounting groove is formed in one side of the sealing cover, a through hole is formed in the middle of the outer wall of the sealing cover, a pressing rod is movably connected in the through hole, a limiting sliding block is arranged on the inner side of the through hole, an arc rotary sliding groove is slidably connected with the limiting sliding block on the outer wall of the pressing rod, a first mounting plate is fixed to one end of the pressing rod extending into the mounting groove, a plurality of telescopic rods are fixed to one side of the first mounting plate, and the same second mounting plate is fixed to the other ends of the plurality of telescopic rods; the application can clean dust on the lenses, has good cleaning effect, avoids the influence of dust on the accuracy of instrument measurement, and can well protect the lenses.

The application discloses a multi-source data compensation method for positioning precision of a motion unit of a complex micro-component ultra-precision controlled-shape machining system, relates to the technical field of complex micro-component ultra-precision controlled-shape machining, and is proposed to meet the requirement of high-precision creation of surface characteristic structures of a thin-wall spherical shell micro-component under the constraint of a narrow space. Technical points: a linear motion unit is controlled by a numerical control system program to reciprocate several times in a constant increment form in a full stroke and a working area, respectively; the position of the linear motion unit in the motion process is collected by a high-frequency laser interferometer; and multi-source error data in the whole area and the region are obtained through data processing. Based on the multi-source data compensation method, a multi-source data error compensation table is established, compensation is carried out through a numerical control program, and the positioning precision of the linear motion unit is calibrated. For a rotary motion unit, an autocollimator is used to calibrate the error, and further compensation is carried out in the program through the error table by an error synthesis method, so that the calibration and compensation of the positioning precision of each motion unit of the complex micro-component ultra-precision controlled-shape machining system are completed, and high-precision equipment support is provided for micro-structure high-precision creation.

The invention provides a method for manufacturing an optical module, a method for manufacturing a gas laser device, and a jig for manufacturing an optical module. In the method of manufacturing an optical module, the optical module includes: an output coupling mirror that transmits a portion of a laser beam and reflects another portion of the laser beam; and a plane mirror including a plane reflection surface perpendicular to the surface of the output coupling mirror on the incident side of the laser light, the method for manufacturing the optical module having the steps of: disposing the first autocollimator such that the emitted light is vertically incident on the surface of the incident side; an optical element is disposed between a surface on the incidence side and the first autocollimator such that light emitted from the first autocollimator is vertically incident on a first reflection surface included in the optical element, the optical element including a second reflection surface that faces the surface on the incidence side and forms an angle of 45 DEG with the first reflection surface; a second auto-collimator is disposed so that the emitted light is reflected by a second reflection surface and is vertically incident on a surface on the incident side; the optical element is removed, and the plane mirror is disposed such that the light emitted from the second autocollimator is vertically incident on the reflection surface of the plane mirror.

The application provides a high-precision auxiliary alignment device and an alignment method for an optoelectronic autocollimator, and aims at solving the problem of low aiming accuracy in the existing laser coarse aiming auxiliary alignment method. The auxiliary alignment device comprises a rhombic prism, a corner cube mirror, a laser, a first light splitting prism and a second light splitting prism. The auxiliary alignment method is as follows: the translational position alignment of the optoelectronic autocollimator to be aligned to the aiming target is realized; the collimated light is divided into first reflected light and first transmitted light; the first reflected light is reflected by the corner cube mirror and then returns to the rhombic prism to form a reference image point; the first transmitted light is transmitted by the first light splitting prism to the surface of the aiming target, is reflected by the surface of the aiming target, and then is reflected by the second light splitting prism, and finally is reflected by the rhombic prism to form a measurement image point. The azimuth angle of the optoelectronic autocollimator to be aligned is adjusted until the measurement image point coincides with the reference image point, and the alignment is completed.

The invention relates to the technical field of optics, and discloses an autocollimator calibration method and system so as to ensure the detection precision. The method comprises the following steps: deploying an auxiliary calibration structure on a peripheral emergent collimated light beam of the autocollimator; the auxiliary calibration structure comprises two reflecting surfaces which are integrally formed and are not perpendicular to each other, an included angle between the two reflecting surfaces is a known standard included angle, and the standard included angle is covered by light spots of collimated light beams emitted from the periphery of the autocollimator to form an upper sub-light beam and a lower sub-light beam of an angular bisector; the control host acquires images of light beams generated by the light source, which are respectively reflected by the two reflecting surfaces of the auxiliary calibration structure and then imaged on the photoelectric sensor, and counts the number of pixels between central points of two cross curves in the acquired images; then, the deflection angle corresponding to the unit pixel is calibrated according to the known standard included angle of the auxiliary calibration structure and the counted pixel number, and finally, the angle change of the measured object is tracked according to the deflection angle corresponding to the unit pixel and the change of the pixel number.

The present invention discloses a system for testing the transmission return accuracy of a drive mechanism for lunar soil and water ice detection, comprising a turntable, a fixing frame, a support seat, a reflector assembly, an autocollimator, a multi-dimensional adjustment table, a base plate, and a drive mechanism. The drive mechanism is mounted on the turntable via the support seat and the fixing frame, and the relative positions of the autocollimator and the reflector assembly are adjusted so that the optical axis of the autocollimator is perpendicular to the reflector. During testing, the turntable is rotated in the reverse direction to compensate for the angle of rotation of the drive mechanism in the forward direction, so that the reflected image of the autocollimator is always within the test field of view, thereby achieving the transmission return accuracy test of the drive mechanism. The system has a simple structure and convenient and effective testing, and can be used for the transmission return accuracy test of the drive mechanism for water ice detection in lunar soil water molecule analyzers.

A method for aligning two surveying instruments in a common space in a process that uses an autocollimation of a collimated light beam transmitted by a first surveying instrument and reflected by a second surveying instrument. In the alignment process, the first surveying instrument may emit a collimated light beam towards the second the surveying instrument and receive a reflection of the collimated light beam from the second surveying instrument in an autocollimator. The reflection may be generated for example by a mirror at the second surveying instrument. When the light beam is reflected such that autocollimation of the collimated light beam is achieved at the first surveying instrument, the first and second surveying instruments are in a predetermined positional relation with respect to one another. With a known predetermined positional relation between the reflecting mirror and the line of sight of the second surveying instrument, measurements by both surveying instruments can be made in a common coordinate system.

The invention provides a lens installation auxiliary device, and belongs to the field of lens installation. The problems that in the prior art, the installation precision of the lens and the lens cone is low, repeated installation and disassembly are needed for debugging, and the coaxiality or parallelism of the axis cannot be debugged before installation are solved. One side of the main frame is connected with an autocollimator, and the other side of the main frame is provided with a reflector. The supporting platform is arranged on the main frame in a sliding mode and can rotate with the connecting position of the supporting platform and the main frame as the center. One side of the tool part is connected with the supporting platform, and the other side of the tool part is connected with the lens cone; the adjusting platform is connected to the reflector side of the main frame, a through hole is formed in the middle of the adjusting platform, and the reflector is arranged in a space formed by the through hole and the main frame; one side of the loading platform is fixed on the adjusting platform, and one side of the adjusting platform on the other side is used for being connected with a lens. The mounting structure is mainly used for mounting lenses and lens cones.

The utility model discloses a device for detecting the precision of a photoelectric auto-collimator lens, which comprises a detection assembly, a measuring rope and pull rope assemblies, the pull rope assemblies are respectively arranged on two sides of the detection assembly, the detection assembly comprises a base, an auto-collimator, a diaphragm assembly and a reflector, the diaphragm assembly is arranged between the auto-collimator and the reflector, and the measuring rope is arranged on the base. The autocollimator, the diaphragm assembly and the reflector are located on different bases respectively, the measuring rope comprises a first section and a second section which are parallel to each other, the first section and the second section are located on the two sides of the bases respectively, and the first section and the second section are connected with the pull rope assembly and the bases in series respectively; during calibration, emergent light of the autocollimator irradiates on the reflector through the cross-shaped light hole, then is reflected back to the autocollimator and is focused on the CCD in a cross-shaped manner after passing through the objective lens of the autocollimator, and then the three-axis adjusting seat is adjusted to change the position of the cross-shaped cursor, so that the precision information of the light at different positions of the objective lens can be obtained. Therefore, the influence of spherical aberration on the photoelectric autocollimator is reduced.

The utility model discloses a self-centering clamping assembly and an autocollimator eccentricity detection device. The device comprises a turntable, a clamping jaw, a base and a positioning ring arranged on the base, the turntable is arranged at the opening of the positioning ring and can rotate relative to the positioning ring by taking the axis of the positioning ring as a rotating shaft; at least three clamping jaws are arranged in the circumferential direction of the turntable; one ends of the clamping jaws are respectively hinged with the turntable and the base; the other end of the clamping jaw forms a clamping structure in the turntable; when a material to be detected is placed in the clamping structure formed by the clamping jaws, all the clamping jaws can be synchronously driven to be opened and closed by rotating the rotary table, and if the material to be detected deviates from the center of the rotary table, the material to be detected can move towards the center of the rotary table under the action of the clamping jaws, so that the accuracy of a subsequent eccentric detection result is effectively improved.

The invention discloses a rapid assembling and adjusting device for a space beam combining reflector group. The rapid assembling and adjusting device comprises a helium-neon laser (1), a total reflection mirror (2) with a center hole, a rotary table simulation mechanism (3), a reflector diaphragm (4), an autocollimator (5), an internal diaphragm (6), a beam combining box (7) and a primary mirror (8). A helium-neon laser (1), a total reflection mirror (2) with a center hole and an internal diaphragm (6) are coaxially installed on the rotary table simulation mechanism (3) from top to bottom. The rotary table simulation mechanism (3) is arranged at the center of the top surface of the beam combining box (7); the primary mirror (8) is arranged in the beam combining box (7) and is positioned right below the internal diaphragm (6); the mirror surface of the primary mirror (8) is provided with a reflector diaphragm (4); and the autocollimator (5) is erected outside the beam combining box (7), and the emergent light of the autocollimator (5) is consistent with the reflected light path of the primary mirror (8). According to the invention, the autocollimator is adopted to replace laser of different wavebands, is not limited by the adjustment of the target wavebands, is suitable for the adjustment of the combined space beam combining system, and is wide in application range and high in practicability.