Telecentric lens testing device

Abstract

The utility model relates to the telecentric lens test field, and specifically relates to a telecentric lens test device comprising a pedestal, a test adjusting instrument, a first lower half ring plate, a second lower half ring plate, a moving seat, a second upper half ring plate, a first adjusting ring plate, a second adjusting ring plate, a third adjusting ring plate, a screw rod, a motor, a telecentric lens and a first upper half ring plate; a test adjusting instrument is installed in the base, a telecentric mirror is arranged over the test adjusting instrument, and the lower half end of the telecentric mirror is fixed through a first lower half ring plate and a second lower half ring plate. The upper half end is fixed through a first upper semi-ring plate and a second upper semi-ring plate, a first adjusting ring plate, a second adjusting ring plate and a third adjusting ring plate are installed at the inner side ends of the first upper semi-ring plate and the second upper semi-ring plate, the movable seat ascends and descends through a lead screw, and a motor is installed at the top of the lead screw.

Description

TECHNICAL FIELD

[0001] The utility model relates to a telecentric lens test field, concretely relates to a telecentric lens testing device. BACKGROUND

[0002] Telecentric lens testing is mainly the process of performance evaluation and verification of telecentric lenses to ensure that their performance in specific applications meets design requirements. Due to its special optical design, telecentric lenses can maintain the stability of image magnification within a certain object distance range, thereby reducing measurement errors caused by object distance changes. Chinese patent CN 214583964 U discloses a telecentric lens testing device. By adjusting the lifting of the support part, the distance between the telecentric lens and the mirror can be controlled. The imaging system can obtain real-time images after the light passes through the telecentric lens. The staff can calibrate the telecentric lens by rotating the support part according to the real-time image conditions to achieve the highest clarity of the real-time image. Finally, the difference between the final scale value and the initial scale value on the support part is used to accurately determine the position of the actual focal plane of the telecentric lens, thereby improving the actual telecentricity of the telecentric lens. However, this design places the telecentric lens on a platform without a fixing structure, which has the risk of shaking and shifting, resulting in low testing accuracy. Therefore, the technical personnel in this field provide a telecentric lens testing device to solve the problems raised in the above background technology. SUMMARY

[0003] To solve the above technical problems, the utility model provides a telecentric lens testing device, which comprises a base, a test adjusting instrument, a first lower half ring plate, a second lower half ring plate, a moving seat, a second upper half ring plate, a first adjusting ring plate, a second adjusting ring plate, a third adjusting ring plate, a lead screw, a motor, a telecentric lens, and a first upper half ring plate. The test adjusting instrument is installed in the base, and the telecentric lens is installed directly above the test adjusting instrument. The lower half end of the telecentric lens is fixed by the first lower half ring plate and the second lower half ring plate. The upper half end is fixed by the first upper half ring plate and the second upper half ring plate. The first adjusting ring plate, the second adjusting ring plate, and the third adjusting ring plate are installed on the inner side of the first upper half ring plate and the second upper half ring plate. The moving seat is lifted by the lead screw, and the motor is installed at the top of the lead screw.

[0004] Preferably, the base is installed with a bottom plate at the bottom, a support frame at the upper side, a horizontal plate at the middle position of the support frame, a top plate at the top of the support frame, two auxiliary rods between the horizontal plate and the top plate, a data line at the rear end of the base, the data line being connected to the test adjusting instrument, and the first lower half ring plate being installed on the front side wall of the horizontal plate.

[0005] Preferably, the first lower half ring plate front side wall is provided with a first screw hole, the second lower half ring plate rear side wall is provided with a second screw hole, the first screw hole and the second screw hole are provided with a first bolt, the middle position of the moving seat is provided with a lead screw groove, the lead screw groove is provided with a lead screw, and the left and right sides of the moving seat are provided with a rod groove, and the rod groove is provided with an auxiliary rod.

[0006] Preferably, the moving seat front side is provided with a support plate, the support plate front side is provided with a first upper half ring plate, the first upper half ring plate front side wall is provided with a third screw hole, and the second upper half ring plate rear side wall is provided with a fourth screw hole.

[0007] Preferably, the third screw hole and the fourth screw hole are provided with a second bolt, the first upper half ring plate middle position is provided with a first adjusting rod, and the first adjusting rod is connected with a first adjusting ring plate.

[0008] Preferably, the second upper half ring plate left and right sides are provided with a second adjusting rod and a third adjusting rod at equal intervals, the second adjusting rod is connected with a second adjusting ring plate, and the third adjusting rod is connected with a third adjusting ring plate.

[0009] The technical effects and advantages of the utility model are as follows:

[0010] 1, when testing, the bottom of the telecentric mirror is fixedly installed through the first lower half ring plate and the second lower half ring plate, and the top of the telecentric mirror is fixedly installed through the first upper half ring plate and the second upper half ring plate, which is stable and ensures that no shaking occurs during testing.

[0011] 2, when the size of the telecentric mirror is small, the first adjusting rod is adjusted inward, the second adjusting rod is adjusted inward, and the third adjusting rod is adjusted inward, so that the first adjusting ring plate, the second adjusting ring plate and the third adjusting ring plate are fixedly installed on the small-size telecentric mirror, and the flexibility is high.

[0012] 3, the lead screw can act on the moving seat to adjust the focal length of the telecentric mirror, which is convenient to operate and has high accuracy. ACCURACY

[0013] Figure 1 It is a structure schematic view of a telecentric lens testing device provided by the embodiment of the application.

[0014] Figure 2 It is an explosion structure schematic view of a telecentric lens testing device provided by the embodiment of the application.

[0015] Figure 3 It is a structure schematic view of a telecentric lens testing device provided by the embodiment of the application Figure 1 .

[0016] Figure 4 It is a structure schematic view of a telecentric lens testing device provided by the embodiment of the application Figure 2 .

[0017] Figure 5 This is a partial exploded structure diagram of a telecentric lens testing device provided in an embodiment of this application.

[0018] In the diagram: 1. Base; 2. Test and adjustment instrument; 3. First lower half ring plate; 4. Second lower half ring plate; 5. Movable seat; 6. Second upper half ring plate; 7. First adjusting ring plate; 8. Second adjusting ring plate; 9. Third adjusting ring plate; 10. Lead screw; 11. Motor; 12. First bolt; 13. Second bolt; 14. Telecentric mirror; 101. Base plate; 102. Support frame; 103. Horizontal plate; 104. Top plate; 105. Auxiliary rod; 106. Data cable; 301. First screw hole; 401. Second screw hole; 501. Lead screw groove; 502. Rod groove; 503. Support plate; 504. First upper half ring plate; 505. Third screw hole; 601. Fourth screw hole; 701. First adjusting rod; 801. Second adjusting rod; 901. Third adjusting rod. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0020] Example

[0021] Please see Figures 1-5 This embodiment provides a telecentric lens testing device, including a base 1, a testing and adjusting device 2, a first lower half-ring plate 3, a second lower half-ring plate 4, a movable seat 5, a second upper half-ring plate 6, a first adjusting ring plate 7, a second adjusting ring plate 8, a third adjusting ring plate 9, a lead screw 10, a motor 11, a telecentric lens 14, and a first upper half-ring plate 504. The testing and adjusting device 2 is installed inside the base 1, and the telecentric lens 14 is located directly above the testing and adjusting device 2. The lower half of the telecentric lens 14 is fixed by the first lower half-ring plate 3 and the second lower half-ring plate 4. The upper half is fixed by the first upper half-ring plate 504 and the second upper half-ring plate 6. The first adjusting ring plate 7, the second adjusting ring plate 8, and the third adjusting ring plate 9 are installed on the inner sides of the first upper half-ring plate 504 and the second upper half-ring plate 6. The movable seat 5 is raised and lowered by the lead screw 10, and the motor 11 is installed on the top of the lead screw 10.

[0022] Specifically, the base 1 bottom is provided with a bottom plate 101, the base 1 upper side is provided with a support frame 102, the support frame 102 middle position is provided with a horizontal plate 103, the support frame 102 top is provided with a top plate 104, the horizontal plate 103 and the top plate 104 are provided with two auxiliary rods 105, the base 1 rear end is provided with a data line 106, the data line 106 is communicated with a test adjusting instrument 2, the horizontal plate 103 front side wall is provided with a first lower half ring plate 3, the first lower half ring plate 3 front side wall is provided with a first screw hole 301, the second lower half ring plate 4 rear side wall is provided with a second screw hole 401, the first screw hole 301 and the second screw hole 401 are provided with a first bolt 12, the moving seat 5 middle position is provided with a lead screw groove 501, the lead screw groove 501 is provided with a lead screw 10, the moving seat 5 left and right sides are provided with a rod groove 502, the rod groove 502 is provided with an auxiliary rod 105, the moving seat 5 front side is provided with a support plate 503, the support plate 503 front side is provided with a first upper half ring plate 504, the first upper half ring plate 504 front side wall is provided with a third screw hole 505, the second upper half ring plate 6 rear side wall is provided with a fourth screw hole 601, the third screw hole 505 and the fourth screw hole 601 are provided with a second bolt 13, the first upper half ring plate 504 middle position is provided with a first adjusting rod 701, the first adjusting rod 701 is connected with a first adjusting ring plate 7, the second upper half ring plate 6 left and right sides are provided with a second adjusting rod 801 and a third adjusting rod 901 at equal intervals, the second adjusting rod 801 is connected with a second adjusting ring plate 8, and the third adjusting rod 901 is connected with a third adjusting ring plate 9.

[0023] The working principle of the utility model is:

[0024] When the first lower half ring plate 3 and the second lower half ring plate 4 are fixed, the center point is consistent with the center vertical direction of the test adjusting instrument 2, when the first upper half ring plate 504 and the second upper half ring plate 6 are fixed, the center point is consistent with the center vertical direction of the test adjusting instrument 2, the bottom of the telecentric lens 14 is fixed and installed through the first lower half ring plate 3 and the second lower half ring plate 4, the top of the telecentric lens 14 is fixed and installed through the first upper half ring plate 504 and the second upper half ring plate 6, when the size of the telecentric lens 14 is small, the first adjusting rod 701 is adjusted inwards, the second adjusting rod 801 is adjusted inwards, and the third adjusting rod 901 is adjusted inwards, so that the first adjusting ring plate 7, the second adjusting ring plate 8 and the third adjusting ring plate 9 are fixed and installed on the small size telecentric lens 14, the flexibility is high, the fixing is stable, the telecentric lens 14 is not shaken during the test process, the lead screw 10 acts on the moving seat 5 to adjust the focal length of the telecentric lens 14, the operation is convenient, and the accuracy is high.

[0025] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor shall belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A telecentric lens testing device, characterized by, The utility model provides a test adjusting instrument, including base (1), test adjusting instrument (2), first lower half ring plate (3), second lower half ring plate (4), mobile seat (5), second upper half ring plate (6), first adjusting ring plate (7), second adjusting ring plate (8), third adjusting ring plate (9), screw rod (10), motor (11), telecentric lens (14) and first upper half ring plate (504), install test adjusting instrument (2) in base (1), be provided with telecentric lens (14) just above test adjusting instrument (2), telecentric lens (14) is fixed lower half end through first lower half ring plate (3) and second lower half ring plate (4), is fixed upper half end through first upper half ring plate (504) and second upper half ring plate (6), first upper half ring plate (504) and second upper half ring plate (6) inner side end install first adjusting ring plate (7), second adjusting ring plate (8) and third adjusting ring plate (9), mobile seat (5) is lifted through screw rod (10), and the motor (11) is installed on the top of screw rod (10).

2. The telecentric lens testing device of claim 1, wherein, The bottom of the base (1) is provided with a bottom plate (101), the upper side of the base (1) is provided with a support frame (102), the middle position of the support frame (102) is provided with a horizontal plate (103), the top of the support frame (102) is provided with a top plate (104), two auxiliary rods (105) are arranged between the horizontal plate (103) and the top plate (104), a data line (106) is arranged at the rear end of the base (1), and the data line (106) is connected to the test adjusting instrument (2).

3. The telecentric lens testing device of claim 2, wherein, The front side wall of the horizontal plate (103) is provided with a first lower half ring plate (3), the first lower half ring plate (3) is provided with a first screw hole (301) in the front side wall, the rear side wall of the second lower half ring plate (4) is provided with a second screw hole (401), and the first screw hole (301) and the second screw hole (401) are provided with a first bolt (12).

4. The telecentric lens testing device of claim 1, wherein, The middle position of the mobile seat (5) is provided with a screw rod groove (501), and the screw rod groove (501) is provided with a screw rod (10).

5. The telecentric lens testing device of claim 4, wherein, The left and right sides of the mobile seat (5) are provided with rod grooves (502), and the rod grooves (502) are provided with auxiliary rods (105).

6. The telecentric lens testing device of claim 5, wherein, The front side of the mobile seat (5) is provided with a support plate (503), the front side of the support plate (503) is provided with a first upper half ring plate (504), the front side wall of the first upper half ring plate (504) is provided with a third screw hole (505), the rear side wall of the second upper half ring plate (6) is provided with a fourth screw hole (601), and the third screw hole (505) and the fourth screw hole (601) are provided with a second bolt (13).

7. The telecentric lens testing device of claim 6, wherein, The middle position of the first upper half ring plate (504) is provided with a first adjusting rod (701), and the first adjusting rod (701) is connected to the first adjusting ring plate (7).

8. The telecentric lens testing device of claim 6, wherein, The left and right sides of the second upper half ring plate (6) are provided with a second adjusting rod (801) and a third adjusting rod (901) at equal intervals, the second adjusting rod (801) is connected to the second adjusting ring plate (8), and the third adjusting rod (901) is connected to the third adjusting ring plate (9).

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