Center deviation detection device of infrared optical lens

Abstract

The utility model discloses an infrared optical lens decentration detection device comprising a pedestal, one end of the top of the pedestal is fixedly provided with a vertical column, the vertical column is slidably provided with a linear motor, the outer side surface of the linear motor is fixedly provided with a support plate, the top of the support plate is provided with a stepping motor, and the stepping motor is provided with an infrared optical lens. According to the utility model, a plurality of lenses with different specifications are uniformly installed on the disc, and when the decentration of the infrared optical lens is measured, the stepping motor can drive the electric push rod to rotate in a stepping manner, so that the decentration of the infrared optical lens can be accurately measured, and the decentration of the infrared optical lens can be accurately measured. And meanwhile, the electric push rod can drive the disc to move up and down, so that the switched lens can be conveniently connected with other accessories in a plug-in manner, the lens does not need to be manually replaced every time, and the use convenience of the instrument is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared center deviation measuring instruments, in particular to a center deviation detection device for an infrared optical lens. Background Art

[0002] The center deviation of infrared optical lenses (also called center offset or center deviation) refers to the deviation between the optical center of the lens and the base geometric center. This deviation may be caused by a variety of factors, including errors in the manufacturing process, insufficient equipment precision, and changes in ambient temperature. Center deviation has a significant impact on the performance of infrared optical systems. First, center deviation causes light to deviate when passing through the lens, thereby affecting the imaging quality of the system. Secondly, center deviation may also cause the system's aberrations to increase, such as astigmatism, coma, and distortion, further affecting the clarity and accuracy of infrared images.

[0003] Currently, an infrared center deviation measuring instrument is used to measure the center deviation of infrared optical lenses. However, during the measurement process, each time the lens is replaced, it needs to be manually disassembled and assembled, and the lens cannot be switched automatically, which affects the convenience of use.

[0004] Therefore, a center deviation detection device for an infrared optical lens is proposed to solve the above problem. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a center deviation detection device for infrared optical lenses, aiming to solve the problem that under the prior art, when replacing the lens of an infrared center deviation measuring instrument, manual disassembly and assembly are required, and the lens cannot be switched automatically, affecting the convenience of use.

[0007] 2. Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A device for detecting center deviation of an infrared optical lens comprises a base, a column is fixedly mounted on one end of the top of the base, a linear motor is slidably mounted on the column, a support plate is fixedly mounted on the outer surface of the linear motor, a stepper motor is mounted on the top of the support plate, an electric push rod is mounted on the bottom of the support plate, the top of the electric push rod is connected to the rotating shaft of the stepper motor, a disc is mounted on the bottom of the electric push rod, and four lenses with different measurement specifications are evenly mounted on the top edge of the disc.

[0010] As a preferred solution of the utility model, a four-dimensional adjustment platform is installed at one end of the top of the base away from the column, and a chuck is installed on the top of the four-dimensional adjustment platform. The top of the chuck is located directly below the lens that is being used each time.

[0011] As a preferred solution of the utility model, sliding grooves are inserted on both side surfaces of the column, and the column is slidably installed between the sliding grooves and the linear motor. When the linear motor slides downward to the lowest point, the bottom of the lens fits with the top of the lens to be detected.

[0012] As a preferred solution of the utility model, a through hole is opened at one end of the top of the support plate, and a straight collimation measuring head is installed on the top edge of the through hole at the top of the support plate, and the bottom of the straight collimation measuring head and the lens docking tube extend through the through hole to one end of the bottom of the support plate.

[0013] As a preferred solution of the utility model, the bottom of the electric push rod is fixedly connected to the top center of the disc, and each rotation stroke of the stepper motor is 90 degrees, and the electric push rod shrinks upward by a certain distance each time the stepper motor is started.

[0014] As a preferred solution of the utility model, in the initial state, the top of only one lens of the disk is located directly below the bottom docking tube of the straight collimation measuring head, and the top of the lens is provided with a ring matching the size of the bottom docking tube of the straight collimation measuring head.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model evenly mounts a plurality of lenses of different specifications on a disc. When measuring the center deviation of an infrared optical lens, the stepping motor can drive an electric push rod to step and rotate, thereby switching different lenses for measurement. At the same time, the electric push rod can drive the disc to move up and down, thereby facilitating the plug-in connection of the switched lens with other accessories, thereby eliminating the need for manual lens replacement each time, thereby improving the convenience of using the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a center deviation detection device for an infrared optical lens according to the utility model;

[0019] Figure 2 The utility model is a device for detecting the center deviation of an infrared optical lens. Figure 1 Schematic diagram of some structures;

[0020] Figure 3The utility model is a schematic diagram of the enlarged structure of a disk and a top component of a center deviation detection device for an infrared optical lens.

[0021] In the figure: 1. base; 2. four-dimensional adjustment platform; 3. chuck; 4. column; 401, slide; 5. linear motor; 6. support plate; 7. straight alignment measuring head; 8. stepping motor; 9. electric push rod; 10. disk; 11. lens. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0023] See also Figure 1-3 The present embodiment provides a device for detecting the center deviation of an infrared optical lens, comprising a base 1, a column 4 is fixedly installed at one end of the top of the base 1, a linear motor 5 is slidably installed on the column 4, a support plate 6 is fixedly installed on the outer surface of the linear motor 5, a stepper motor 8 is installed on the top of the support plate 6, an electric push rod 9 is installed on the bottom of the support plate 6, the top of the electric push rod 9 is connected to the rotating shaft of the stepper motor 8, a disk 10 is installed at the bottom of the electric push rod 9, and four lenses of different measurement specifications are evenly installed on the top edge of the disk 10. When measuring the center deviation of the infrared optical lens, the stepper motor 8 can drive the electric push rod 9 to rotate in steps, so as to switch different lenses 11 for measurement. At the same time, the electric push rod 9 can drive the disk 10 to move up and down, so as to facilitate the plug-in connection of the switched lens 11 with other accessories, so that there is no need to manually replace the lens 11 each time, thereby improving the convenience of using the instrument.

[0024] In this embodiment, if Figure 1 and Figure 2 As shown, slide grooves 401 are inserted on both side surfaces of the column 4, and the column 4 is slidably installed between the slide grooves 401 and the linear motor 5. When the linear motor 5 slides downward to the lowest point, the bottom of the lens 11 fits with the top of the lens to be tested, so that it is convenient to quickly adjust the lens 11 to the lens for testing after the lens to be tested is installed.

[0025] In this embodiment, if Figure 1 , Figure 2 and Figure 3As shown, the bottom of the electric push rod 9 is fixedly connected to the top center of the disk 10, and the rotation stroke of the stepper motor 8 is 90 degrees each time, and the electric push rod 9 shrinks a certain distance upward each time the stepper motor 8 is started. Before the stepper motor 8 is started, the electric push rod 9 will also extend a certain distance downward, so that the lens 11 is first separated from the straight collimation measuring head 7 and then the lens 11 is switched to dock with it.

[0026] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, in the initial state of the disk 10, only the top of one lens 11 is located directly below the docking tube at the bottom of the straight collimation measuring head 7, and a ring matching the size of the docking tube at the bottom of the straight collimation measuring head 7 is provided on the top of the lens 11, so that each time the stepping motor 8 rotates once, there will be a lens 11 located directly below the straight collimation measuring head 7, so that the lens 11 can be quickly adjusted and switched to the use position, which is convenient for connecting and installing it with the straight collimation measuring head 7.

[0027] Working principle: When the infrared center deviation measuring instrument is used, the lens to be tested is first installed through the chuck 3, and then the support plate 6 is driven by the linear motor 5 to move downward to the lowest point, and the bottom of the lens 11 is fitted with the top of the lens to be tested, so as to measure the center deviation of the lens. When it is necessary to switch to a different lens 11, the electric push rod 9 is first moved downward by a certain distance to separate the current lens 11 from the straight collimation measuring head 7, and then the stepper motor 8 is rotated once to make another lens 11 directly under the straight collimation measuring head 7. At this time, the electric push rod 9 is shortened upward to complete the connection between the bottom of the straight collimation measuring head 7 and the switched lens 11, so as to facilitate the plug-in connection between the switched lens 11 and other accessories, thereby eliminating the need to manually replace the lens 11 each time, thereby improving the convenience of using the instrument.

[0028] All technical features in this embodiment can be freely combined according to actual needs.

[0029] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A device for detecting center deviation of an infrared optical lens, comprising a base (1), characterized in that: A column (4) is fixedly mounted on one end of the top of the base (1); a linear motor (5) is slidably mounted on the column (4); a support plate (6) is fixedly mounted on the outer surface of the linear motor (5); a stepper motor (8) is mounted on the top of the support plate (6); an electric push rod (9) is mounted on the bottom of the support plate (6); the top of the electric push rod (9) is connected to the rotating shaft of the stepper motor (8); a disk (10) is mounted on the bottom of the electric push rod (9); and four lenses of different measurement specifications are evenly mounted on the top edge of the disk (10).

2. The center deviation detection device of an infrared optical lens according to claim 1, characterized in that: A four-dimensional adjustment platform (2) is installed at one end of the top of the base (1) away from the column (4), and a chuck (3) is installed on the top of the four-dimensional adjustment platform (2). The top of the chuck (3) is located directly below the lens (11) that is being used each time.

3. The center deviation detection device of an infrared optical lens according to claim 2, characterized in that: Slide grooves (401) are inserted and opened on both side surfaces of the column (4), and the column (4) is slidably installed between the slide grooves (401) and the linear motor (5). When the linear motor (5) slides downward to the lowest point, the bottom of the lens (11) fits with the top of the lens to be tested.

4. The center deviation detection device of an infrared optical lens according to claim 1, characterized in that: A through hole is formed at one end of the top of the support plate (6); a straight alignment measuring head (7) is mounted on the top edge of the through hole at the top of the support plate (6); and a bottom of the straight alignment measuring head (7) and a lens (11) docking tube extend through the through hole to one end of the bottom of the support plate (6).

5. The center deviation detection device of an infrared optical lens according to claim 4, characterized in that: The bottom of the electric push rod (9) is fixedly connected to the top center of the disc (10), and each rotation stroke of the stepper motor (8) is 90 degrees, and each time the stepper motor (8) is started, the electric push rod (9) retracts a certain distance upward.

6. The center deviation detection device of an infrared optical lens according to claim 1, characterized in that: In the initial state, the disc (10) has only one lens (11) whose top is located directly below the bottom docking tube of the straight collimation measuring head (7), and a circular ring matching the size of the bottom docking tube of the straight collimation measuring head (7) is provided on the top of the lens (11).

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