Disclosure of Invention
The technical problem to be solved by the invention is to provide an inclined cylindrical lens eccentricity measuring instrument, which is constructed by an inclined structure, solves the problem that the cylindrical lens is easy to deviate when being positioned for multiple times, and simultaneously configures related components to ensure the accuracy of the instrument.
The invention is realized by the following technical scheme.
A tilted cylindrical lens eccentricity gauge, comprising: the optical imaging system comprises a light pipe system, a reflecting prism, a lens tool table and an optical imaging system, wherein the light pipe system is horizontally arranged, the reflecting prism is positioned in front of the light pipe system, the lens tool table is positioned above the reflecting prism, the optical imaging system is positioned above the lens tool table, the bottom of the lens tool table is provided with a multi-dimensional adjusting table, the optical imaging system is assembled on a linear guide rail in a sliding mode, the lens tool table is obliquely arranged, a light ray A reflected by the reflecting prism and passing through the lens tool table to the optical imaging system, and a light ray B output to the reflecting prism by the light pipe system form an included angle alpha of 45.
Compare the measuring apparatu of column, set up the direction of reflection prism's output light to the slant, corresponding lens frock platform slant sets up for the slant of the tilting cylindrical lens that awaits measuring is placed at lens frock platform, has solved the easy off normal problem of many times location.
Furthermore, the linear guide rail is obliquely arranged, the bottom of the linear guide rail is fixedly provided with a guide rail base, the top surface of the guide rail base is obliquely arranged, and the light pipe system penetrates through the guide rail base.
Furthermore, a vertical support frame is arranged, the top of the support frame is provided with an inclined end face, the linear guide rail is flatly attached to the end face, and a pressing plate is arranged, wherein one part of the pressing plate is fixedly arranged on the side face of the support frame, and the other part of the pressing plate is fixedly arranged on the linear guide rail.
Through setting up guide rail base, support frame and pressure strip for linear guide's slant is fixed comparatively firm, has ensured the stability of optical imaging system position.
Further, the linear guide is equipped with a first slide seat, the first slide seat is fixed with a fixing member perpendicular to the linear guide, the fixing member is fixedly installed on the optical imaging system, the lower end face of the fixing member is positioned at the front part and the rear part and is vertically provided with test rods with the same length, the linear track is equipped with a second slide seat and is positioned below the first slide seat, the second slide seat is fixed with a test board perpendicular to the linear guide, the test board is in contact with the two test rods, and the test board is provided with pressure sensors at two contact points.
Because linear guide slant sets up, optical imaging system's focus is not on first slide to because optical imaging system has certain weight, through its focus of its position of first slide adjustment optical imaging system promptly after the repetitious usage, thereby the upper portion of first slide slightly lifts up and leads to optical imaging system position to take place the problem of dislocation. And through setting up two test bars, survey test panel and pressure sensor, thereby the numerical difference between two pressure sensor of accessible judges whether optical imaging system misplaces.
Furthermore, the front part and the rear part of the top surface of the test board are provided with sockets, the positions of the two sockets correspond to the two test rods, the shapes of the bottom ends of the two sockets and the bottom ends of the two test rods are matched, and the two pressure sensors are respectively arranged at the central positions in the two sockets.
Furthermore, the middle of the test board is fixedly provided with a connecting rod perpendicular to the test board, a through hole is formed in the middle of the lower end face of the fixing part, the top end of the connecting rod penetrates through the through hole, a surplus gap is formed between the top end of the connecting rod and the through hole, the connecting rod is sleeved with a return spring, and two ends of the return spring are fixedly connected to the lower end face of the fixing part and the test board respectively.
Through setting up connecting rod and restoring spring and making survey test panel and test bar along with the synchronous adjustment position of optical imaging system, the connecting rod has the surplus clearance with the through-hole of mounting and makes survey test panel can not misplace along with optical system equally.
Further, the linear guide rail is equipped with a third slide seat, the third slide seat is located above the first slide seat, the third slide seat is fixed with a connecting frame, the connecting frame is provided with a connecting part parallel to the linear track, the connecting part is provided with a threaded hole, a threaded rod perpendicular to the connecting part penetrates through the threaded hole, one end of the threaded rod is fixed with a rotating wheel, the other end of the threaded rod is fixed with a pressing block, and the pressing block is tightly pressed on the upper part of the first slide seat.
When the test rod detects that the optical imaging system is dislocated, the pressing block can be pressed to the linear guide rail by the rotating wheel, so that the dislocation phenomenon can be corrected.
Furthermore, a limit structure is arranged at the upper part of the first sliding seat, and the pressing block is positioned in the limit structure and tightly pressed on the first sliding seat.
The purpose of arranging the limiting structure is to enable the third sliding seat and the first sliding seat to be synchronously adjusted in position.
Further, a tool base is arranged in front of the light pipe system, a reflecting prism seat is fixed in the tool base, the reflecting prism is installed on the reflecting prism seat, the top surface of the tool base is arranged in an inclined mode, and the multidimensional adjusting table is installed on the top surface of the tool base.
Further, the lens tooling table is provided with a reference edge strip and an auxiliary edge support strip, two sides of the lens tooling table are respectively provided with a row of mounting holes, two ends of the reference edge strip and the auxiliary edge support strip are respectively provided with a long groove corresponding to the mounting holes, a fastening piece can be arranged and fixedly mounted with the mounting holes through the long grooves, and the top surface of the reference edge strip is fixedly provided with a cushion strip.
The cylindrical mirror can be placed on the lens tooling table and close to the reference edge strip, and then the position of the auxiliary edge strip is adjusted and fixed on the lens tooling table according to the size and the shape of the cylindrical mirror.
The invention has the beneficial effects that:
with the structure of tilting, solved the easy off normal problem of cylinder lens of many times location, the relevant part of configuration is in order to ensure the accurate nature of instrument simultaneously, and the eccentric measuring apparatu of tilting cylinder lens of this application has assembled the part that can detect optical imaging system dislocation simultaneously to still assembled the part of correcting the dislocation and made the overall function comparatively comprehensive, and lean on the strake, supplementary support the position locking of the strake of being convenient for cylinder lens at lens frock platform setting benchmark.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
Referring to fig. 1 and 3, the present invention provides an eccentric measurement instrument for a tilted cylindrical lens, including: the device comprises a base 1, a light pipe system 2, a reflecting prism 3, a multi-dimensional adjusting table 4, a lens tooling table 5, a linear guide rail 6 and an optical imaging system 7. The light pipe system 2 is horizontally arranged, the reflecting prism 3 is arranged in front of the light pipe system 2, the reflecting prism 3 is fixed by a reflecting prism seat 31, a tool base 30 is fixed on the base 1, the reflecting prism seat 31 and the reflecting prism 3 are arranged in the tool base 30, the top surface of the tool base 30 is obliquely arranged, the multidimensional adjusting table 4 is fixed on the top surface of the tool base 30, the lens tool table 5 is fixed on the multidimensional adjusting table 4, and the lens tool table 5 is obliquely arranged. The base 1 is fixed with a guide rail base 61, the top surface of the guide rail base 61 is obliquely arranged, the linear guide rail 6 is obliquely arranged and the bottom of the linear guide rail is fixed on the top surface of the guide rail base 61, and the optical imaging system 7 is slidably assembled on the linear guide rail 6. The light pipe system 2 horizontally penetrates through the guide rail base 61, the base 1 is fixedly provided with a support frame 62 at the rear of the guide rail base 61, the support frame 62 is vertically arranged, the top of the support frame 62 is provided with an inclined end face, the linear guide rail 6 is flatly attached to the end face, a compression plate 63 is arranged, part of the compression plate is fixedly arranged on the side face of the support frame 62, and the other part of the compression plate is fixedly arranged on the linear guide rail 6. The included angle α formed by the light ray a reflected by the reflecting prism 3 and passing through the lens tooling table 5 to the optical imaging system 7 and the light ray B output by the light pipe system 2 to the reflecting prism 3 is 45 ° to 80 °, and in this embodiment, the included angle α is 70 °.
The lens tooling table 5 is provided with a reference edge strip 51 and an auxiliary edge strip support 52, two sides of the lens tooling table 5 are respectively provided with a row of mounting holes 500, two ends of the reference edge strip 51 and the auxiliary edge strip support 52 are respectively provided with a long groove 501 corresponding to the mounting holes, fastening pieces can be arranged on both ends of the reference edge strip 51 and the auxiliary edge strip support 52 and fixedly mounted with the mounting holes 500 through the long grooves 501, and a pad strip 510 is fixedly mounted on the top surface of the reference edge strip 51.
The cylindrical mirror can be placed on the lens tooling table and close to the reference edge strip, and then the position of the auxiliary edge strip is adjusted and fixed on the lens tooling table according to the size and the shape of the cylindrical mirror.
Compare the measuring apparatu of column, set up the direction of reflection prism's output light to the slant, corresponding lens frock platform slant sets up for the slant of the tilting cylindrical lens that awaits measuring is placed at lens frock platform, has solved the easy off normal problem of many times location.
The light pipe system 2, the reflection prism 3, the multi-dimensional adjusting table 4, the linear guide 6 and the optical imaging system 7 have the same structure as the prior application CN207248491U of the applicant, and the optical imaging system 7 is arranged on the linear guide 6 in a sliding way, so that the description is not repeated.
Linear guide 6 is in this application, through setting up guide rail base, support frame and pressure strip for linear guide's slant is fixed comparatively firm, has ensured the stability of optical imaging system position.
The linear guide 6 is provided with a first slide 64, which is of the same construction as in the prior application, and the way in which the first slide 64 is slidably adjusted in the linear guide 6 is dependent on a rotating hand wheel (not shown), which is also the same as in the prior application.
The first slide 64 is fixed with a fixing member 65 perpendicular to the linear guide 6, the fixing member 65 is fixedly installed with the optical imaging system 7, the lower end surface of the fixing member 65 is vertically provided with a testing rod 66 with the same length at the front and the rear, the linear guide 6 is equipped with a second slide 71 and is positioned below the first slide 64, the second slide 71 is fixed with a testing plate 72 perpendicular to the linear guide 6, the testing plate 72 is in contact with the two testing rods 66, the testing plate 72 is provided with pressure sensors 73 at two contact points, and the two pressure sensors 73 are connected to a computer.
Because linear guide slant sets up, optical imaging system's focus is not on first slide to because optical imaging system has certain weight, through its focus of its position of first slide adjustment optical imaging system promptly after the repetitious usage, thereby the upper portion of first slide slightly lifts up and leads to optical imaging system position to take place the problem of dislocation. And through setting up two test bars, survey test panel and pressure sensor, thereby the numerical difference between two pressure sensor of accessible judges whether optical imaging system misplaces.
The test board 72 is provided with sockets 74 at the front and rear portions of the top surface thereof, two of the sockets 74 are positioned to correspond to the two test bars 66, and the two sockets 74 are shaped to match the bottom ends of the two test bars 66, and the two pressure sensors 73 are respectively positioned at the central positions in the two sockets 74.
A connecting rod 75 perpendicular to the test board 72 is fixedly installed at the middle portion of the test board 72, a through hole 650 is formed at the middle portion of the lower end surface of the fixing member 65, a clearance is formed between the top end of the connecting rod 75 penetrating the through hole 650 and the through hole 650, a return spring 76 is sleeved on the connecting rod 75, and two ends of the return spring 76 are respectively and fixedly connected to the lower end surface of the fixing member 65 and the test board 72.
Through setting up connecting rod and restoring spring and making survey test panel and test bar along with the synchronous adjustment position of optical imaging system, the connecting rod has the surplus clearance with the through-hole of mounting and makes survey test panel can not misplace along with optical system equally.
The linear guide 6 is assembled with a third slide carriage 81, the third slide carriage 81 is located above the first slide carriage 64, the third slide carriage 81 is fixed with a connecting frame 82, the connecting frame 82 is provided with a connecting part 820 parallel to the linear guide 6, the connecting part 820 is provided with a threaded hole, a threaded rod 83 perpendicular to the connecting part 820 penetrates through the threaded hole, one end of the threaded rod 83 is fixed with a rotating wheel 84, the other end is fixed with a pressing block 85, and the pressing block 85 is tightly pressed on the upper part of the first slide carriage 64.
When the test rod detects that the optical imaging system is dislocated, the pressing block can be pressed to the linear guide rail by the rotating wheel, so that the dislocation phenomenon can be corrected.
Further, a limit structure 640 is disposed on the upper portion of the first sliding seat 64, and the pressing block 85 is located in the limit structure 640 and tightly pressed against the first sliding seat 64.
The purpose of arranging the limiting structure is to enable the third sliding seat and the first sliding seat to be synchronously adjusted in position.
The method for detecting the cylindrical lens by using the inclined cylindrical lens eccentricity measuring instrument is the same as that of the prior application, and comprises the following steps of:
(1) detect the eccentric detection of the parallel generating line direction (Y of being surveyed cylindrical mirror 100), keep flat being surveyed cylindrical mirror 100 on lens frock platform 5, lean on strake 51 by the benchmark, supplementary support strake 52 fixes a position, the light irradiation that light pipe system 3 emergent is on turning reflecting prism 3, and through turning reflecting prism 3, multidimensional adjusting platform 4 and lens frock platform 5, it is on being sent out to being surveyed cylindrical mirror, through the formation of image of optical imaging system 7 to the area array CCD, the image that the area array CCD becomes passes through the image processing of computer, it is specific: placing the image of each frame read in the area array CCD into an internal memory, scanning pixels in each line in the image, extracting contrast numerical value signals in the pixels in each line, finding out points with the highest numerical values, connecting the points with the highest numerical values in each line into a straight line, defining an XY coordinate system, and forming a linear equation a of the positioning edge;
rotating the cylindrical lens 100 to be measured 180 degrees, placing the cylindrical lens on the lens tooling table 5 again, positioning the cylindrical lens by the reference edge strip 51 and the auxiliary edge supporting strip 52, imaging by the optical imaging system 7, and processing the image by a computer, specifically: placing the image of each frame read in the area array CCD into an internal memory, scanning pixels in each line in the image, extracting contrast numerical value signals in the pixels in each line, finding out points with the highest numerical values, connecting the points with the highest numerical values in each line into a straight line, defining an XY coordinate system, and forming a linear equation b of the positioning edge;
and calculating the positions of the two times, wherein the calculation formula is Y (the distance between the two positions) = | b-a |, the line eccentricity value of the measured cylindrical mirror 100 in the direction parallel to the bus is Y/2, and the angular eccentricity is arctan [ (Y/2)/f (the focal length of the measured cylindrical mirror) ].
(2) The eccentricity detection of the vertical bus direction (X direction) of the cylindrical mirror 100 to be detected is detected, the cylindrical mirror 100 to be detected is flatly placed on the lens tooling table 5 and is positioned by the reference side edge 51 and the auxiliary side edge supporting 52, light emitted by the collimator system 3 irradiates the steering reflecting prism 3 and is emitted to the cylindrical mirror 100 to be detected through the steering reflecting prism 3, the multidimensional adjusting table 4 and the lens tooling table 5, the light is converged through the cylindrical mirror 100 to be detected and is imaged to a focal position, an image of the focal position is imaged on the area array CCD through the optical imaging system 7, and an image formed by the area array CCD is processed through computer imaging, specifically: placing the image of each frame read in the area array CCD into an internal memory, scanning pixels in each line in the image, extracting contrast numerical value signals in the pixels in each line, finding out points with the highest numerical values, connecting the points with the highest numerical values in each line into a straight line, defining an XY coordinate system, and forming a linear equation c of the positioning edge;
rotating the cylindrical lens 100 to be measured 180 degrees, placing the cylindrical lens on the lens tooling table 5 again, positioning the cylindrical lens by the reference edge strip 51 and the auxiliary edge supporting strip 52, imaging by the optical imaging system 7, and processing the image by a computer, specifically: placing the image of each frame read in the area array CCD into an internal memory, scanning pixels in each line in the image, extracting contrast numerical value signals in the pixels in each line, finding out points with the highest numerical values, connecting the points with the highest numerical values in each line into a straight line, defining an XY coordinate system, and forming a linear equation d of the positioning edge;
calculating the positions of the two times, wherein the formula is X (the distance between the two positions) = | d-c |, the line eccentricity value of the measured cylindrical mirror 100 in the direction perpendicular to the bus is X/2, the angular eccentricity is arctan [ (X/2)/f (the focal length of the measured cylindrical mirror) ], and the calculation method is the same as the above (1).
(3) Detecting the inclination angle of the generatrix and the sideline of the cylindrical mirror 100 to be detected, flatly placing the cylindrical mirror 100 to be detected on the lens tooling table 5, similarly leaning against one side positioning edge of the lens tooling table 5, opening the LED coaxial illumination system on the optical imaging system 7, acquiring the image of the edge side edge of the cylindrical mirror 100 to be detected through the optical imaging system 7, and similarly processing the image through a computer to form a linear equation e of the edge side edge;
finding a focus image of the cylindrical mirror 100 to be detected through the optical imaging system 7, and forming a linear equation f of the focus through computer image processing;
and calculating the positions of the two times, wherein the formula is gamma (inclination angle) = arctan [ (k 2-k 1)/(1 + k1 x k2) ], wherein k1 and k2 are the slopes of two linear equations, and obtaining the inclination angle value of the bus and the side of the detected cylindrical mirror 100.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.