Square far field lens structure with corner

Abstract

The utility model relates to a square telecentric lens structure with corner, telecentric lens structure including main mirror barrel, extension mirror barrel, corner mirror barrel and reflector gland that connect gradually, main mirror barrel, extension mirror barrel, corner mirror barrel and reflector gland are all square structure, corner mirror barrel and reflector gland between fixed one square corner reflector, corner reflector present 45 degree angle installation fixed, compared with the prior art, the utility model has convenient installation, reduces processing difficulty, convenient fixed auxiliary device and so on advantages.

Description

Technical Field

[0001] This utility model relates to a telecentric lens structure, and more particularly to a square telecentric lens structure with a rotating corner. Background Technology

[0002] Telecentric lenses are primarily designed to correct parallax in traditional industrial lenses. They maintain consistent image magnification within a certain object distance range, which is crucial for applications where the measured objects are not on the same plane. Due to their unique parallel optical path design, telecentric lenses have long been favored in machine vision applications with stringent requirements for lens distortion correction.

[0003] However, current traditional telecentric lens structures are basically made into cylindrical shapes. Cylindrical shapes often have problems such as low torque during rotation and easy slippage, and the inability to externally fix lens auxiliary devices such as protective covers, heat sinks, and cable clamps.

[0004] Therefore, it is particularly important to develop a telecentric lens that can overcome the above-mentioned defects and provide diverse connection and assembly structures as well as multifunctional shape-aiding structures. Utility Model Content

[0005] The purpose of this invention is to overcome the defects of the existing technology and provide a square telecentric lens structure with a rotating angle.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A square telecentric lens structure with a corner is disclosed. The telecentric lens structure includes a main lens barrel, an extension lens barrel, a corner lens barrel, and a reflector cap connected in sequence. The main lens barrel, extension lens barrel, corner lens barrel, and reflector cap are all square structures. A square corner reflector is fixed between the corner lens barrel and the reflector cap. The corner reflector is installed and fixed at a 45-degree angle.

[0008] Furthermore, the main lens barrel and the extension lens barrel are connected with an H7 / h6 clearance fit and are fixed by connecting screws.

[0009] Furthermore, the extended lens barrel and the corner lens barrel are connected by an H7 / h6 clearance fit and are fixedly installed using hexagonal screws with a 120-degree groove.

[0010] Furthermore, a point light source bracket is threadedly connected to the top of the main lens barrel; a point light source is provided on the point light source bracket.

[0011] Furthermore, a ring light source bracket is threadedly connected to the top of the corner mirror tube; a ring light source is provided on the ring light source bracket.

[0012] Furthermore, the telecentric lens structure is provided with multiple threaded mounting holes.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] (1) The overall shape of the telecentric lens structure of this utility model is square, which not only ensures the optical design structure of the internal cylindrical lens and spacer, but also ensures the integrity of the square shape; and the extended lens barrel design can maintain the square structure with the shape aligned, which can reduce the processing difficulty and ensure a certain installation accuracy and alignment of the overall shape structure of the lens.

[0015] (2) The point light source bracket and ring light source bracket of this utility model are designed to be threaded, which makes processing and installation very convenient; and threaded mounting holes are added to the surface of the telecentric lens for fixing and installing protective covers, heat sinks, wire clamps or other auxiliary products required for the lens. Attached Figure Description

[0016] Figure 1 A schematic diagram of the cross-sectional structure of the telecentric lens provided by this utility model;

[0017] Figure 2 Provided by this utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0018] Figure 3 A schematic diagram of the telecentric lens assembly provided by this utility model;

[0019] Figure 4 A schematic diagram of the threaded mounting hole structure provided by this utility model.

[0020] The labels in the diagram indicate:

[0021] 1. Main lens barrel; 2. Extension lens barrel; 3. Corner lens barrel; 4. Reflector cap; 5. Corner reflector; 6. Connecting screw; 7. 120-degree groove; 8. Socket head screw; 9. Point light source bracket; 10. Point light source; 11. Ring light source bracket; 12. Ring light source; 13. Threaded mounting hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] Example

[0029] like Figures 1-3As shown, a square telecentric lens structure with a corner is disclosed. The telecentric lens structure includes a main lens barrel 1, an extension lens barrel 2, a corner lens barrel 3, and a mirror cap 4 connected in sequence. The length of the lens barrel varies for different magnifications of the telecentric lens. When the overall length of the lens barrel is too long, the design of the extension lens barrel 2 reduces the manufacturing difficulty and ensures the installation accuracy of the lens barrel and the alignment of the overall lens shape. The main lens barrel 1, extension lens barrel 2, corner lens barrel 3, and mirror cap 4 are all square structures, ensuring both the optical design of the internal cylindrical lens elements and spacers, and the integrity of the square shape. A square corner mirror 5 is fixed between the corner lens barrel 3 and the mirror cap 4. The corner mirror 5 is installed and fixed at a 45-degree angle. The main lens barrel 1 can be adjusted to align with the square outer surface of the lens barrel 2. The main lens barrel 1 and the extension lens barrel 2 are connected by an H7 / h6 clearance fit and are fixed by connecting screws 6 to ensure the coaxiality requirement at the extension lens barrel 2. The extension lens barrel 2 and the corner lens barrel 3 are connected by an H7 / h6 clearance fit and are fixed by hexagonal screws 8 using a 120-degree groove 7 to ensure the alignment of the outer shape. This structure occupies little space and is flexible in installation. A point light source bracket 9 is threadedly screwed onto the top of the main lens barrel 1. A point light source 10 is installed on the point light source bracket 9. A ring light source bracket 11 is threadedly screwed onto the top of the corner lens barrel 3. A ring light source 12 is installed on the ring light source bracket 11. The processing and installation are convenient and quick.

[0030] like Figure 4 As shown, the telecentric lens structure is provided with multiple threaded mounting holes 13, which can be used to fix and install protective covers, heat sinks, wire clamps or other auxiliary products required for the lens.

[0031] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A square telecentric lens structure with a rotating corner, characterized in that, The telecentric lens structure includes a main lens barrel (1), an extension lens barrel (2), a corner lens barrel (3), and a reflector cap (4) connected in sequence; the main lens barrel (1), the extension lens barrel (2), the corner lens barrel (3), and the reflector cap (4) are all square structures; a square corner reflector (5) is fixed between the corner lens barrel (3) and the reflector cap (4); the corner reflector (5) is installed and fixed at a 45-degree angle.

2. The square telecentric lens structure with a rotating corner according to claim 1, characterized in that, The main lens tube (1) and the extension lens tube (2) are connected by an H7 / h6 clearance fit and are fixed by a connecting screw (6).

3. The square telecentric lens structure with a rotating corner according to claim 1, characterized in that, The extended lens tube (2) and the corner lens tube (3) are connected by an H7 / h6 clearance fit and are fixedly installed using an internal hex screw (8) with a 120-degree groove (7).

4. The square telecentric lens structure with a rotating corner according to claim 1, characterized in that, A point light source bracket (9) is threadedly connected to the top of the main lens tube (1); a point light source (10) is provided on the point light source bracket (9).

5. A square telecentric lens structure with a rotating corner according to claim 1, characterized in that, The corner mirror tube (3) is threadedly connected to a ring light source bracket (11); a ring light source (12) is provided on the ring light source bracket (11).

6. The square telecentric lens structure with a rotating corner according to claim 1, characterized in that, The telecentric lens structure is provided with multiple threaded mounting holes (13).

Images