CN215893964U

CN215893964U - Eccentric measurement structure of aspheric lens

Info

Publication number: CN215893964U
Application number: CN202120884797.1U
Authority: CN
Inventors: 黄燕平
Original assignee: Shenzhen Solar Valley Sci Tech Development Co ltd
Current assignee: Shenzhen Solar Valley Sci Tech Development Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2022-02-22
Anticipated expiration: 2031-04-27

Abstract

The utility model provides an eccentricity measurement structure of an aspheric lens, which relates to the technical field of optical element detection and comprises a bottom plate, wherein a track is fixed on the top surface of the bottom plate, a sliding block is arranged on the surface of the track and is in sliding connection with the track, a movable frame is arranged on the top surface of the sliding block and is movably connected with the top surface of the sliding block, a driven gear is arranged on the inner side of the movable frame and is movably connected with the movable frame, the driven gear penetrates through the top surface of the movable frame, a fixed template is fixed on the inner side of the driven gear, and the aspheric lens is fixed on the inner side of the fixed template. The fixed die plate is arranged on the inner side of the driven gear in the movable frame, the aspheric lens is fixed in the die plate, the design avoids the vibration in the manual method and the operation process, the deflection of the lens is caused, the error increase caused by the eccentricity difference measurement human factor is avoided, the detection efficiency of the lens is increased, the application range of the eccentricity measurement device is increased, and various fixed die plates can be simply and conveniently replaced.

Description

Eccentric measurement structure of aspheric lens

Technical Field

The utility model relates to the technical field of optical element detection, in particular to an eccentricity measurement structure of an aspheric lens.

Background

At present, when aspheric lens production manufacturers at home carry out eccentricity measurement on batch production aspheric lenses, dial indicators are mainly adopted for contact measurement, the surfaces of parts can be frequently damaged, and if a protective layer (such as thin paper) is added between a probe of the dial indicator and a non-spherical contact surface, the measurement precision cannot be ensured due to the elasticity of the paper. In order to overcome the above-mentioned disadvantages, a noncontact measuring device has been studied, and japanese unexamined patent application publication No. 8-233686 describes an eccentricity measuring device for an aspherical lens, which is a noncontact measuring device, and operates on the following principle: when the detected lens rotates around a mechanical rotating shaft, a displacement measuring device records two-dimensional coordinate change of laser spots reflected by the aspheric surface on the CCD, and corresponding eccentricity is calculated according to the variation and the aspheric surface shape, which has the following problems: the distance from the incident point of the laser on the aspheric surface to the CCD is short, so that the accuracy of the measurement is limited.

Most of the existing aspheric lens eccentricity measuring devices are operated by placing an aspheric lens on a support which is placed in advance, and due to the fact that the placing method and vibration in the operation process can cause deflection of the lens, errors caused by eccentricity difference measuring human factors are greatly increased, the lens is unqualified, and the application range of the eccentricity measuring device is single.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an eccentricity measuring structure of an aspheric lens.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an eccentric measurement structure of aspheric lens, includes the bottom plate, the top surface of bottom plate is fixed with the track, orbital surface is equipped with the slider, and slider and track sliding connection, the top surface of slider is equipped with movable frame, and movable frame and slider top surface swing joint, movable frame's inboard is equipped with driven gear, and driven gear and movable frame swing joint, and driven gear runs through movable frame top surface, driven gear's inboard is fixed with the fixed die plate, the inboard of fixed die plate is fixed with aspheric lens.

Preferably, the top surface of bottom plate is fixed with two telescopic links, and two telescopic links are located the track both ends respectively, the top of telescopic link is fixed with the light path frame, be fixed with the dead lever between the light path frame, the one end of light path frame is fixed with the fixed plate, the top surface of fixed plate is fixed with the autocollimator.

Preferably, a fixed support is fixed on the top surface of the bottom plate, a sliding rod is arranged on the inner side of the fixed support and movably connected with the fixed support, a reflector is arranged on the surface of the sliding rod and movably connected with the sliding rod, and a vertical light pipe is fixed on the top surface of the fixed support and penetrates through the top surface of the fixed support.

Preferably, a sliding plate is arranged between the fixing rods and is in sliding connection with the fixing rods, a rotating motor is fixed to the top surface of the sliding plate, a driving gear is fixed to the output end of the rotating motor, and the driving gear is meshed with the driven gear.

Preferably, the top surface of bottom plate is fixed with the controller, and controller and rotating electrical machines electric connection, the surface mosaic of controller has the display screen, the surface of controller is equipped with adjustment button, and adjustment button and controller swing joint, and adjustment button and display screen electric connection.

Preferably, the surface of the sliding block is provided with a fastening bolt, the fastening bolt is in threaded connection with the sliding block, the fastening bolt penetrates through the sliding block, and the fastening bolt penetrates through the movable frame.

Preferably, the center line of the vertical light pipe and the symmetry line of the movable frame are positioned in the same vertical plane.

Advantageous effects

According to the utility model, the fixed template is arranged on the inner side of the driven gear in the movable frame, and the aspheric lens is fixed in the template, so that the deflection of the lens caused by vibration in the manual and operation processes is avoided, the error increase caused by the human factor of eccentricity difference measurement is avoided, the detection efficiency of the lens is increased, the application range of the eccentricity measurement device is enlarged, and various fixed templates can be simply and conveniently replaced.

According to the utility model, the telescopic rod and the sliding rod are arranged, the telescopic rod can adjust the height of the light path frame to enable the light path frame to be in the same horizontal plane with the focus of the convergent light of the aspheric lens, the sliding rod can adjust the height and the angle of the reflector, and the eccentric measurement of the aspheric lens is more accurate due to the design.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

fig. 4 is a partial structural sectional view of the present invention.

Illustration of the drawings:

1. a controller; 2. a telescopic rod; 3. a slider; 4. a light path frame; 5. a base plate; 6. a mirror; 7. A slide bar; 8. an autocollimator; 9. a driving gear; 10. fixing the rod; 11. a vertical light pipe; 12. a display screen; 13. an adjustment button; 14. fastening a bolt; 15. a track; 16. fixing a bracket; 17. a fixing plate; 18. A rotating electric machine; 19. a slide plate; 20. a driven gear; 21. an aspherical lens; 22. fixing the template; 23. A movable frame.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, an eccentricity measurement structure of an aspheric lens 21 includes a base plate 5, a rail 15 is fixed on a top surface of the base plate 5, a slider 3 is disposed on a surface of the rail 15, the slider 3 is slidably connected to the rail 15, a movable frame 23 is disposed on a top surface of the slider 3, the movable frame 23 is movably connected to a top surface of the slider 3, a driven gear 20 is disposed inside the movable frame 23, the driven gear 20 is movably connected to the movable frame 23, the driven gear 20 penetrates through a top surface of the movable frame 23, a fixed mold plate 22 is fixed on an inside of the driven gear 20, and the aspheric lens 21 is fixed on an inside of the fixed mold plate 22. The top surface of bottom plate 5 is fixed with two telescopic links 2, and two telescopic links 2 are located track 15 both ends respectively, and the top of telescopic link 2 is fixed with light path frame 4, is fixed with dead lever 10 between the light path frame 4, and the one end of light path frame 4 is fixed with fixed plate 17, and the top surface of fixed plate 17 is fixed with autocollimator 8.

The top surface of the bottom plate 5 is fixedly provided with a fixed support 16, the inner side of the fixed support 16 is provided with a sliding rod 7, the sliding rod 7 is movably connected with the fixed support 16, the surface of the sliding rod 7 is provided with a reflector 6, the reflector 6 is movably connected with the sliding rod 7, the top surface of the fixed support 16 is fixedly provided with a vertical light pipe 11, and the vertical light pipe 11 penetrates through the top surface of the fixed support 16. A sliding plate 19 is arranged between the fixing rods 10, the sliding plate 19 is connected with the fixing rods 10 in a sliding mode, a rotating motor 18 is fixed to the top surface of the sliding plate 19, a driving gear 9 is fixed to the output end of the rotating motor 18, and the driving gear 9 is meshed with a driven gear 20. The top surface of bottom plate 5 is fixed with controller 1, and controller 1 and rotating electrical machines 18 electric connection, and the surface mosaic of controller 1 has display screen 12, and the surface of controller 1 is equipped with adjustment button 13, and adjustment button 13 and controller 1 swing joint, and adjustment button 13 and display screen 12 electric connection. The surface of the slide block 3 is provided with a fastening bolt 14, the fastening bolt 14 is in threaded connection with the slide block 3, the fastening bolt 14 penetrates through the slide block 3, and the fastening bolt 14 penetrates through the movable frame 23. The center line of the vertical light pipe 11 is located in the same vertical plane as the line of symmetry of the movable frame 23.

The working principle of the utility model is as follows: the movable frame 23 is horizontally placed firstly, then the aspheric lens 21 is fixed in the fixed template 22, then the movable frame 23 is turned up, the movable frame 23 is perpendicular to the bottom plate 5, then the fastening bolt 14 is screwed, the fixed template 22 is arranged on the inner side of the driven gear 20 in the movable frame 23, the aspheric lens 21 is fixed in the template, vibration in a manipulation process and an operation process is avoided due to the design, deflection of the lens is caused, error enlargement caused by an eccentricity difference measurement human factor is avoided, the detection efficiency of the lens is increased, the application range of the eccentricity measurement device is enlarged, and various fixed templates 22 can be simply and conveniently replaced. After the fixed mounting is completed, the vertical light tube 11 is powered to emit light beams, the light beams pass through the reflector 6, pass through the aspheric lens 21, and are received and detected by the autocollimator 8, a focus image formed by the aspheric lens 21 is found through the autocollimator 8, when the detected aspheric lens 21 rotates around a mechanical rotating shaft, the autocollimator 8 records two-dimensional coordinate change of laser spots reflected by the aspheric lens 21 on a CCD (charge coupled device), corresponding eccentricity is calculated according to the variation and the aspheric surface shape, the telescopic rod 2 and the sliding rod 7 are arranged, the height of the light path frame 4 can be adjusted by the telescopic rod 2, the laser spots converged by the aspheric lens 21 are on the same horizontal plane, the height and the angle of the reflector 6 can be adjusted by the sliding rod 7, and the eccentric measurement of the aspheric lens 21 is more accurate due to the design.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An eccentricity measurement structure of an aspherical lens, comprising a base plate (5), characterized in that: the top surface of bottom plate (5) is fixed with track (15), the surface of track (15) is equipped with slider (3), and slider (3) and track (15) sliding connection, the top surface of slider (3) is equipped with movable frame (23), and movable frame (23) and slider (3) top surface swing joint, the inboard of movable frame (23) is equipped with driven gear (20), and driven gear (20) and movable frame (23) swing joint, and driven gear (20) run through movable frame (23) top surface, the inboard of driven gear (20) is fixed with fixed die plate (22), the inboard of fixed die plate (22) is fixed with aspheric lens (21).

2. An eccentricity measurement structure of an aspherical lens as defined in claim 1, wherein: the top surface of bottom plate (5) is fixed with two telescopic links (2), and two telescopic links (2) are located track (15) both ends respectively, the top of telescopic link (2) is fixed with light path frame (4), be fixed with dead lever (10) between light path frame (4), the one end of light path frame (4) is fixed with fixed plate (17), the top surface of fixed plate (17) is fixed with autocollimator (8).

3. An eccentricity measurement structure of an aspherical lens as defined in claim 1, wherein: the top surface of bottom plate (5) is fixed with fixed bolster (16), the inboard of fixed bolster (16) is equipped with slide bar (7), and slide bar (7) and fixed bolster (16) swing joint, the surface of slide bar (7) is equipped with speculum (6), and speculum (6) and slide bar (7) swing joint, the top surface of fixed bolster (16) is fixed with vertical light pipe (11), and vertical light pipe (11) run through the top surface of fixed bolster (16).

4. An eccentricity measurement structure of an aspherical lens as defined in claim 2, wherein: be equipped with slide (19) between dead lever (10), and slide (19) and dead lever (10) sliding connection, the top surface of slide (19) is fixed with rotating electrical machines (18), the output of rotating electrical machines (18) is fixed with driving gear (9), and driving gear (9) and driven gear (20) intermeshing.

5. An eccentricity measurement structure of an aspherical lens as defined in claim 1, wherein: the top surface of bottom plate (5) is fixed with controller (1), and controller (1) and rotating electrical machines (18) electric connection, the surface of controller (1) inlays and is equipped with display screen (12), the surface of controller (1) is equipped with adjustment button (13), and adjustment button (13) and controller (1) swing joint, and adjustment button (13) and display screen (12) electric connection.

6. An eccentricity measurement structure of an aspherical lens as defined in claim 1, wherein: the surface of the sliding block (3) is provided with a fastening bolt (14), the fastening bolt (14) is in threaded connection with the sliding block (3), the fastening bolt (14) penetrates through the sliding block (3), and the fastening bolt (14) penetrates through the movable frame (23).

7. An eccentricity measurement structure of an aspherical lens as defined in claim 3, wherein: the central line of the vertical light pipe (11) and the symmetry line of the movable frame (23) are positioned in the same vertical plane.