An endoscope lens capable of meeting different field angle requirements but consistent in lens

Abstract

This utility model discloses an endoscope lens that can meet different viewing angle requirements while maintaining consistent lens elements. It includes a barrel, an objective lens fixedly mounted on one side of the inner wall of the barrel, an eyepiece fixedly mounted on the other side of the inner wall of the barrel, a first convex mirror fixedly mounted on the barrel on one side of the objective lens, and a concave mirror fixedly mounted on the barrel on one side of the first convex mirror. This utility model, an endoscope lens that can meet different viewing angle requirements while maintaining consistent lens elements, designs three lenses (160°, 135°, and 105°) as multiple structures of a single lens. It modifies some air gaps to meet different angle requirements, while simultaneously pursuing different depths of field and high resolution requirements. This simplifies materials, improves efficiency, and reduces costs. The use of the same lens for three lenses with different requirements reduces the number of lens types and increases the corresponding quantity, greatly improving lens processing efficiency and reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of endoscope lens technology, specifically an endoscope lens that can meet the needs of different field of view angles while maintaining the same lens. Background Technology

[0002] The endoscope lens is the core component of an endoscopy system. Its main function is to directly observe lesions in hollow organs or body cavities inside the human body through optical imaging, supporting diagnostic and minimally invasive treatment procedures. First, it magnifies the image from the endoscope tip inside the body through an optical system and transmits it to the eyepiece or monitor, allowing doctors to clearly see the fine structures of the digestive tract, respiratory tract, urinary system, etc., thereby identifying abnormalities such as inflammation, ulcers, tumors, or early-stage cancer. Second, the lens typically integrates a high-resolution image sensor and a light source illumination system to ensure clear and realistic images, and supports real-time video recording, photography, and image storage for subsequent analysis or remote consultation. In addition, some lenses are designed to rotate or bend at multiple angles to achieve panoramic observation, reduce blind spots, and connect to surgical instruments such as lasers or biopsy forceps to directly assist in minimally invasive surgery or tissue sampling. However, traditional endoscope lenses have the following drawbacks: Traditional endoscope lenses used in electronic colonoscopes, gastroscopes, and nasopharyngeal lenses require at least 18 lenses. The lenses are of many types, few in number, and difficult to manufacture, which is time-consuming and labor-intensive. Currently, there are many types of endoscopic lens assembly materials on the market, the parts are small in size, and their appearance is very similar, making them easy to confuse and extremely inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide an endoscope lens that can meet the requirements of different field of view angles while maintaining the same lens, in order to solve the problems mentioned in the background art. Traditional endoscope lenses used in electronic colonoscopes, gastroscopes, and nasopharyngeal lenses require at least 18 lenses, which are numerous, have a variety of lens types, are few in number, are complicated to process, and are time-consuming and labor-intensive. Currently, the market has a wide variety of endoscope lens assembly materials, small part sizes, and high similarity in appearance, which makes them easy to confuse and extremely inconvenient.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an endoscope lens that can meet the requirements of different field of view angles but with consistent lenses, including a lens barrel; An objective lens is fixedly mounted on one side of the inner wall of the microscope tube, and an eyepiece is fixedly mounted on the other side of the inner wall of the microscope tube. A first convex mirror located on one side of the objective lens is fixedly mounted on the microscope tube, and a concave mirror located on one side of the first convex mirror is fixedly mounted on the microscope tube. A second convex mirror is fixedly mounted on one side of the concave mirror. A first extinction Mylar is fixedly mounted between the objective lens and the first convex mirror. A second extinction Mylar is fixedly mounted between the second convex mirror and the third convex mirror. An aperture Mylar is fixedly mounted on the side of the first convex mirror closest to the concave mirror.

[0005] Furthermore, a third matte mylant is fixedly installed on one side of the aperture mylant, and the third matte mylant has a specification of D1.4*0.8*0.105.

[0006] Furthermore, the dimensions of the aperture melamine are D1.4*0.26*0.01.

[0007] Furthermore, the first matte Mylar has the following specifications: D2.0*1.25*0.145.

[0008] Furthermore, the second matte Mylar has the following specifications: D1.6*1.0*0.20.

[0009] Furthermore, the lens barrel has a specification of D2.4*3.58.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This device will design three lenses with 160 degrees, 135 degrees and 105 degrees as multiple structures of one lens, change some air gaps to meet different angle requirements, and at the same time pursue different depth of field and high resolution requirements of the lens, simplify materials, improve efficiency and reduce costs. Using the same lens element for 2 or 3 lenses with different requirements reduces the number of lens element types and increases the quantity accordingly, greatly improving lens element processing efficiency and reducing costs. Attached Figure Description

[0011] Figure 1 This is a side view of Embodiment 1 of the present utility model; Figure 2 This is a side view of Embodiment 2 of the present invention; Figure 3 This is a side view of Embodiment 3 of the present invention.

[0012] In the diagram: 1. Lens tube; 2. Objective lens; 3. First convex mirror; 4. Concave mirror; 5. Second convex mirror; 6. Third convex mirror; 7. Eyepiece; 8. First extinction Mylar; 9. Second extinction Mylar; 10. Aperture Mylar; 11. Third extinction Mylar. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figure 1-3 This utility model provides an endoscope lens that can meet the needs of different viewing angles but with the same lens, including a lens barrel 1; An objective lens 2 is fixedly installed on one side of the inner wall of the microscope tube 1, and an eyepiece 7 is fixedly installed on the other side of the inner wall of the microscope tube 1. A first convex mirror 3 located on one side of the objective lens 2 is fixedly installed on the microscope tube 1. A concave mirror 4 located on one side of the first convex mirror 3 is fixedly installed on the microscope tube 1. A second convex mirror 5 is fixedly installed on one side of the concave mirror 4. A first extinction Mylar 8 is fixedly installed between the objective lens 2 and the first convex mirror 3. A second extinction Mylar 9 is fixedly installed between the second convex mirror 5 and the third convex mirror 6. An aperture Mylar 10 is fixedly installed on the side of the first convex mirror 3 near the concave mirror 4.

[0015] A third matting myrtle 11 is fixedly installed on one side of the aperture myrtle 10. The third matting myrtle 11 has the specifications of D1.4*0.8*0.105.

[0016] The dimensions of the Mylar 10 aperture are D1.4*0.26*0.01.

[0017] The first matte Mylar 8 has the following specifications: D2.0*1.25*0.145.

[0018] The second matte Mylar 9 has the following specifications: D1.6*1.0*0.20.

[0019] The dimensions of lens barrel 1 are D2.4*3.58. Example

[0020] Refer to the instruction manual. Figure 1 In this embodiment of the application, during use: an objective lens 2 is installed inside the lens barrel 1. Two symmetrically arranged first extinction Mylars 8 are fixedly installed on one side of the objective lens 2. The dimensions of the first extinction Mylars 8 are D2.0*1.25*0.145. A first convex mirror 3 is fixedly installed on one side of the first extinction Mylars 8. An aperture Mylar 10 is fixedly installed on one side of the first convex mirror 3. The dimensions of the aperture Mylar 10 are D1.4*0.26*0.01. Two symmetrical third matte Mylars 11, each with dimensions D1.4*0.8*0.105, are used. A concave mirror 4 is fixedly mounted on one side of each third matte Mylar 11. A second convex mirror 5 is fixedly mounted on one side of each concave mirror 4. A second matte Mylar 9, with dimensions D1.6*1.0*0.20, is fixedly mounted on one side of each second matte Mylar 9. A third convex mirror 6 is fixedly mounted on one side of each second matte Mylar 9. The specific parameters are shown in the table below. Example

[0021] Refer to the instruction manual. Figure 2 In this embodiment of the application, during use: an objective lens 2 is installed inside the lens barrel 1. A first matting Mylar 8, with dimensions D2.0*1.25*0.145, is fixedly installed on one side of the objective lens 2. A first convex mirror 3 is fixedly installed on one side of the first matting Mylar 8. An aperture Mylar 10, with dimensions D1.4*0.30*0.01, is fixedly installed on one side of the aperture Mylar 10. The third matte Mylane 11 has dimensions of D1.4*0.8*0.105. A concave mirror 4 is fixedly installed on one side of the third matte Mylane 11. A second convex mirror 5 is fixedly installed on one side of the concave mirror 4. A second matte Mylane 9 with dimensions of D1.6*1.0*0.20 is fixedly installed on one side of the second matte Mylane 9. A third convex mirror 6 is fixedly installed on one side of the second matte Mylane 9. The specific parameters are as follows: Example

[0022] Refer to the instruction manual. Figure 3 In this embodiment, the objective lens 2 is installed inside the lens barrel 1. A first matte Mylar 8 with dimensions D2.0*1.25*0.01 is fixedly installed on one side of the objective lens 2. A first convex mirror 3 with dimensions D1.4*0.26*0.01 is fixedly installed on one side of the first convex mirror 8. An aperture Mylar 10 with dimensions D1.4*0.26*0.01 is fixedly installed on one side of the aperture Mylar 10. A second convex mirror 5 with dimensions D1.6*1.0*0.20 is fixedly installed on one side of the second convex mirror 4. A third convex mirror 6 with dimensions D1.6*1.0*0.20 is fixedly installed on one side of the second convex mirror 9. The specific parameters are as follows: Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An endoscope lens that can meet the requirements of different field of view angles but with the same lens, including a lens barrel (1). Its features are: An objective lens (2) is fixedly installed on one side of the inner wall of the lens tube (1), and an eyepiece (7) is fixedly installed on the other side of the inner wall of the lens tube (1). A first convex mirror (3) located on one side of the objective lens (2) is fixedly installed on the lens tube (1), and a concave mirror (4) located on one side of the first convex mirror (3) is fixedly installed on the lens tube (1). A second convex mirror (5) is fixedly installed on one side of the concave mirror (4). A first extinction Mylar (8) is fixedly installed between the objective lens (2) and the first convex mirror (3); A second matting Mylar (9) is fixedly installed between the second convex mirror (5) and the third convex mirror (6); An aperture mella (10) is fixedly installed on the side of the first convex mirror (3) near the concave mirror (4).

2. The endoscope lens of claim 1, wherein: A third matte myrtle (11) is fixedly installed on one side of the aperture myrtle (10), and the third matte myrtle (11) has a specification of D1.4*0.8*0.

105.

3. The endoscope lens of claim 1, wherein: The aperture Mylar (10) has the following specifications: D1.4*0.26*0.

01.

4. The endoscope lens of claim 1, wherein: The first matte Mylar (8) has the following specifications: D2.0*1.25*0.

145.

5. The endoscope lens of claim 1, wherein: The second matte Mylar (9) has a specification of D1.6*1.0*0.

20.

6. The endoscope lens of claim 1, wherein: The lens tube (1) has a specification of D2.4*3.58.

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