Coated lens convenient for adjusting aperture size

Abstract

The utility model discloses a coated lens convenient for adjusting aperture size, comprising a lens support, a lens module arranged on the lens support, a flange plate fixedly connected on the lens support through a screw, a cover plate rotatably connected on the flange plate, and light holes arranged in the middle parts of the lens support, the flange plate and the cover plate. The flange plate is provided with a regular hexagon frame groove located outside the light transmitting hole, each edge groove of the regular hexagon frame groove is slidably connected with a protruding block, the protruding blocks are fixedly connected with light shielding plates, the light shielding plates are one-sixth parts of regular hexagons of the same size, the tops of the light shielding plates are fixedly connected with protruding columns, and the protruding columns are fixedly connected with the flange plate. A sliding groove matched with the protruding column is formed in the cover plate. According to the utility model, a high-efficiency coating technology and a precise aperture adjusting mechanism are combined together, so that the overall optical performance of the lens can be remarkably improved, and the optimal image quality can be ensured to be obtained under various shooting conditions.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering exploration equipment technology, and in particular to a coated lens that is easy to adjust the aperture size. Background Technology

[0002] With the development of photography and videography technology, the requirements for lens optical performance are increasing, especially in professional photography, film production and high-end surveillance systems, where higher standards are set for image quality, color reproduction and the ability to adapt to different lighting conditions.

[0003] By combining efficient coating technology with a precise aperture adjustment mechanism, not only can the overall optical performance of the lens be significantly improved, but the best image quality can also be ensured under various shooting conditions. Based on this need, this utility model aims to provide a coated lens with an easily adjustable aperture size to meet these high-standard application requirements, optimize optical performance, and improve the applicability and flexibility of the device in different environments. Utility Model Content

[0004] The purpose of this utility model is to provide a coated lens that is easy to adjust the aperture size in order to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A coated lens with adjustable aperture size includes a lens holder, on which a lens module is mounted. A flange plate is fixedly connected to the lens holder by screws, and a cover plate is rotatably connected to the flange plate. A light-transmitting hole is provided in the center of the lens holder, the flange plate, and the cover plate. A regular hexagonal frame groove is provided on the flange plate outside the light-transmitting hole. A protrusion is slidably connected to each side of the regular hexagonal frame groove. A light-shielding plate is fixedly connected to the protrusion. The light-shielding plate is one-sixth of a regular hexagon of the same size. A protruding post is fixedly connected to the top of the light-shielding plate. A sliding groove that mates with the protruding post is provided on the cover plate.

[0007] As a further description of the above technical solution:

[0008] An incomplete gear ring is fixedly connected to the outer side of the cover plate, and an installation groove is provided on the lens bracket. A dial wheel that meshes and drives with the incomplete gear ring is rotatably connected in the installation groove through a rotating shaft.

[0009] As a further description of the above technical solution:

[0010] The flange plate has a clearance groove to accommodate the passage of the dial wheel.

[0011] As a further description of the above technical solution:

[0012] The light-transmitting holes include: a first light-transmitting hole on the lens holder, a second light-transmitting hole on the flange plate, and a third light-transmitting hole on the cover plate. The apertures of the first and third light-transmitting holes are larger than the aperture of the second light-transmitting hole.

[0013] As a further description of the above technical solution:

[0014] The cover plate has several weight-reducing holes.

[0015] As a further description of the above technical solution:

[0016] The lens module is composed of coated lenses of different shapes. Each lens group includes a glass substrate, and from the glass substrate to the air side, there are magnesium fluoride layer, titanium dioxide layer, first silicon dioxide layer, niobium oxide layer, second silicon dioxide layer and fluorocarbon compound layer.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. In this invention, under strong light conditions, turning the dial forward reduces the aperture, which helps to avoid overexposure. At this time, the coating also plays a role in preventing internal reflections and maintaining the purity of the image. In low light conditions, turning the dial backward increases the size of the aperture. The larger aperture allows more light to enter, and the coated lens ensures that reflections are minimized even with a large aperture, providing a clear and bright image. The combination of efficient coating technology and precise aperture adjustment mechanism can not only significantly improve the overall optical performance of the lens, but also ensure the best image quality under various shooting conditions.

[0019] 2. In this utility model, the lens module is composed of coated lenses of different shapes. Each lens group includes a glass substrate. From the glass substrate to the air side, there are magnesium fluoride layer, titanium dioxide layer, first silicon dioxide layer, niobium oxide layer, second silicon dioxide layer and fluorocarbon compound layer. A high-efficiency anti-reflection coating structure is created on the surface of the glass substrate, which can not only significantly reduce reflection and improve light transmittance, but also improve color reproduction. It is suitable for various optical lenses. Attached Figure Description

[0020] Figure 1 An exploded view of a coated lens with an adjustable aperture size, according to an embodiment of the present invention, is shown.

[0021] Figure 2 A three-dimensional structural schematic diagram of a coated lens that facilitates aperture size adjustment according to an embodiment of the present invention is shown;

[0022] Figure 3A cross-sectional schematic diagram of a coated lens that facilitates aperture size adjustment according to an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of the lens structure provided according to an embodiment of the present invention is shown.

[0024] Legend:

[0025] 1. Lens module; 11. Glass substrate; 12. Magnesium fluoride layer; 13. Titanium dioxide layer; 14. First silicon dioxide layer; 15. Niobium oxide layer; 16. Second silicon dioxide layer; 17. Fluorocarbon compound layer; 2. Lens support; 201. First light-transmitting hole; 202. Mounting groove; 3. Flange plate; 301. Second light-transmitting hole; 302. Regular hexagonal frame groove; 303. Relief groove; 4. Light-shielding plate; 401. Aperture hole; 5. Protrusion; 6. Protrusion; 7. Cover plate; 701. Third light-transmitting hole; 702. Slide groove; 703. Weight reduction hole; 8. Incomplete gear ring; 9. Dial wheel; 10. Rotating shaft. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figure 1-3This utility model provides a technical solution: a coated lens with an adjustable aperture size, comprising a lens holder 2, a lens module 1 mounted on the lens holder 2, a flange plate 3 fixedly connected to the lens holder 2 by screws, a cover plate 7 rotatably connected to the flange plate 3, an incomplete gear ring 8 fixedly connected to the outer side of the cover plate 7, a mounting groove 202 on the lens holder 2, a dial wheel 9 rotatably connected to the incomplete gear ring 8 via a rotating shaft 10 in the mounting groove 202, a first light-transmitting hole 201 on the lens holder 2, a second light-transmitting hole 301 on the flange plate 3, and a third light-transmitting hole 70 on the cover plate 7. 1. The apertures of the first light-transmitting hole 201 and the third light-transmitting hole 701 are larger than the aperture of the second light-transmitting hole 301, ensuring that when the aperture hole 401 is at its maximum, light can completely pass through the light-transmitting hole and illuminate the lens. The flange plate 3 has a regular hexagonal frame groove 302 located outside the light-transmitting hole. Each side groove of the regular hexagonal frame groove 302 is slidably connected to a protrusion 6. A light-shielding plate 4 is fixedly connected to the protrusion 6. The light-shielding plate 4 is one-sixth of a regular hexagon of the same size. The aperture hole 401 is formed between the six sets of light-shielding plates 4. A protruding post 5 is fixedly connected to the top of the light-shielding plate 4. The cover plate 7 has a sliding groove 702 that cooperates with the protruding post 5. The forward-rotating dial 9, based on the gear meshing transmission principle, drives the incomplete gear ring 8 to rotate the cover plate 7 in the reverse direction. Under the linkage of the slide groove 702 and the protrusion 5, as well as the limiting effect of the protrusion 6 and the side groove of the regular hexagonal frame groove 302, it drives the light shield to move in a straight line in the reverse direction, reducing the size of the aperture hole 401. Conversely, when the reverse-rotating dial 9 is turned, the size of the aperture hole 401 is enlarged.

[0029] Specifically, such as Figure 1 As shown, the flange plate 3 is provided with a relief groove 303 to accommodate the passage of the dial wheel 9, ensuring that the assembly and disassembly of the flange plate 3 are not interfered with.

[0030] Specifically, such as Figure 1 As shown, the cover plate 7 has several weight-reducing holes 703, which reduce the weight while maintaining the structural strength of the cover plate 7.

[0031] Example 2

[0032] Unlike Example 1, as Figure 4 As shown, the lens module 1 is composed of coated lenses of different shapes. Each lens group includes a glass substrate 11. From the glass substrate 11 to the air side, there are magnesium fluoride layer 12, titanium dioxide layer 13, first silicon dioxide layer 14, niobium oxide layer 15, second silicon dioxide layer 16 and fluorocarbon compound layer 17. A high-efficiency anti-reflection coating structure is created on the surface of the glass substrate 11, which can not only significantly reduce reflection and improve light transmittance, but also improve color reproduction, and is suitable for various optical lenses.

[0033] Specifically, the magnesium fluoride layer 12, as the first layer of low-refractive-index material, is mainly used to initially reduce reflection, with a thickness of approximately λ / 4 (λ being the target wavelength); the titanium dioxide layer 13, as a high-refractive-index material, contrasts with the magnesium fluoride layer 12, further reducing reflection and enhancing transmittance, with a thickness also set at λ / 4; the first silicon dioxide layer 14, as a medium-refractive-index material, helps balance the effects of the first two layers, and due to its good chemical stability, it helps improve the durability of the entire film system, with a thickness also set at λ / 4; the niobium oxide layer 15 provides a higher refractive index for fine-tuning transmittance and reflectance, especially performing excellently in the visible light range, with a thickness also set at λ / 4; the second silicon dioxide layer 16 is reused mainly to protect the underlying sensitive layer and further reduce surface reflection, with a thickness set at λ / 2, and the thicker layer can better resist environmental corrosion; the fluorocarbon compound layer 17 effectively prevents water droplets and dust from adhering to the lens surface, keeping the lens clean and indirectly improving image quality, with a thickness typically less than λ / 10.

[0034] Working principle: In use, firstly, under strong light conditions, rotating the dial 9 forward drives the incomplete gear ring 8 to rotate the cover plate 7 in the opposite direction according to the gear meshing transmission principle. Under the linkage of the slide groove 702 and the protrusion 5, as well as the limiting effect of the protrusion 6 and the edge groove of the regular hexagonal frame groove 302, the light shield is driven to move in a straight line in the opposite direction, reducing the size of the aperture 401, which helps to avoid overexposure. At this time, the coating also plays a role in preventing internal reflection and maintaining the purity of the image. In low light conditions, rotating the dial 9 in reverse expands the size of the aperture 401. The larger aperture allows more light to enter, and the coated lens ensures that even with a large aperture, reflection is minimized to provide a clear and bright image.

[0035] By combining efficient coating technology with a precise aperture adjustment mechanism, not only can the overall optical performance of the lens be significantly improved, but the best image quality can also be obtained under various shooting conditions.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coated lens for easy adjustment of aperture size, comprising a lens holder (2), wherein a lens module (1) is mounted on the lens holder (2), characterized in that, A flange plate (3) is fixedly connected to the lens holder (2) by screws. A cover plate (7) is rotatably connected to the flange plate (3). Light-transmitting holes are opened in the middle of the lens holder (2), the flange plate (3) and the cover plate (7). A regular hexagonal frame groove (302) located outside the light-transmitting hole is opened on the flange plate (3). A protrusion (6) is slidably connected to each side groove of the regular hexagonal frame groove (302). A light-shielding plate (4) is fixedly connected to the protrusion (6). The light-shielding plate (4) is one-sixth of a regular hexagon of the same size. A protruding post (5) is fixedly connected to the top of the light-shielding plate (4). A sliding groove (702) that cooperates with the protruding post (5) is opened on the cover plate (7).

2. The coated lens for easy aperture size adjustment according to claim 1, characterized in that, An incomplete gear ring (8) is fixedly connected to the outside of the cover plate (7). An installation groove (202) is provided on the lens bracket (2). A dial wheel (9) that meshes and drives with the incomplete gear ring (8) is rotatably connected in the installation groove (202) through a rotating shaft (10).

3. A coated lens for easy aperture size adjustment according to claim 2, characterized in that, The flange plate (3) is provided with a clearance groove (303) to accommodate the passage of the dial wheel (9).

4. A coated lens for easy aperture size adjustment according to claim 3, characterized in that, The light-transmitting holes include: a first light-transmitting hole (201) on the lens holder (2), a second light-transmitting hole (301) on the flange plate (3) and a third light-transmitting hole (701) on the cover plate (7), wherein the aperture of the first light-transmitting hole (201) and the aperture of the third light-transmitting hole (701) are larger than the aperture of the second light-transmitting hole (301).

5. A coated lens for easy aperture size adjustment according to claim 4, characterized in that, The cover plate (7) has several weight-reducing holes (703).

6. A coated lens for easy aperture size adjustment according to claim 1, characterized in that, The lens module (1) is composed of coated lenses of different shapes. Each lens group includes a glass substrate (11), and from the glass substrate (11) to the air side are a magnesium fluoride layer (12), a titanium dioxide layer (13), a first silicon dioxide layer (14), a niobium oxide layer (15), a second silicon dioxide layer (16), and a fluorocarbon compound layer (17).

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