Lens mechanism and riflescope

Abstract

The utility model is suitable for optical instrument technical field provides a lens mechanism and sighting telescope, above -mentioned lens mechanism includes main objective group, eyepiece group and switching assembly, sighting telescope includes lens barrel, still includes above -mentioned lens mechanism, switching assembly's at least partial activity sets up in lens barrel. Between main objective group and eyepiece group still activity sets up and compensates lens, compensates lens for adjusting the position of main objective group's image side focal plane or eyepiece group's object side focal plane, makes switching assembly when being in first state, main objective group's image side focal plane and the position of the pattern surface of graticule coincide, while eyepiece group's object side focal plane also with the position of the pattern surface of graticule coincides, switching assembly is in second state, main objective group's image side focal plane and night vision component's light receiving surface coincide, and eyepiece group's object side focal plane and night vision component's display surface coincide. Avoided the product overall weight big and the problem that the imaging exists chromatic aberration caused by using the graticule of greater thickness.

Description

Technical Field

[0001] This utility model belongs to the field of optical instrument technology, and in particular relates to a lens mechanism and a sight. Background Technology

[0002] A scope, also known as an optical aiming device, is an optical device used to help a shooter aim at a target. Its principle is to achieve precise aiming using optical imaging and reflection principles. White light scopes are typically used during the day, while night vision scopes are used at night. Shooters change scopes depending on the environment. Changing scopes requires recalibrating the reticle and the point of impact, a complex and tedious process. Currently, some scopes on the market have both white light and night vision aiming modes to handle daytime and nighttime use respectively. To ensure clear imaging in both white light and night vision modes, existing scopes typically use a reticle of a certain thickness. This ensures that the display surface of the night vision module coincides with the object-side focal plane of the eyepiece group and the image-side focal plane of the main objective lens group. The reticle, through its own refraction, allows the patterned surface of the reticle to align with both the object-side focal plane of the eyepiece group and the image-side focal plane of the main objective lens group. However, using a thicker reticle will result in a heavier overall product and color difference issues in the image, affecting the user experience of the scope. Utility Model Content

[0003] The purpose of this invention is to provide a lens mechanism and a sight, which aims to solve the technical problems of the existing sights being heavy and having chromatic aberration in image quality.

[0004] This utility model is implemented as follows: Firstly, a lens mechanism is provided, comprising a main objective lens group, an eyepiece group, and a switching component. The main objective lens group and the eyepiece group are spaced apart along the principal optical axis. The switching component is movably disposed between the main objective lens group and the eyepiece group. The switching component is provided with a reticle and a night vision component. The switching component has a first state and a second state. When the switching component is in the first state, the reticle is located on the principal optical axis, and the night vision component is offset from the principal optical axis. When the switching component is in the second state, the night vision component is located on the principal optical axis, and the reticle is offset from the principal optical axis.

[0005] A compensation lens is also movably disposed between the main objective lens group and the eyepiece group. The compensation lens is used to adjust the position of the image-side focal plane of the main objective lens group or the object-side focal plane of the eyepiece group, so that when the switching component is in the first state, the image-side focal plane of the main objective lens group coincides with the pattern surface of the reticle, and the object-side focal plane of the eyepiece group also coincides with the pattern surface of the reticle. At the same time, when the switching component is in the second state, the image-side focal plane of the main objective lens group coincides with the light-receiving surface of the night vision component, and the object-side focal plane of the eyepiece group coincides with the display surface of the night vision component.

[0006] In an optional embodiment, the compensation lens includes a first compensation lens. When the switching component is in a first state, the patterned surface of the reticle coincides with the object-side focal plane of the eyepiece group. The first compensation lens is located on the principal optical axis and between the reticle and the main objective lens group. The first compensation lens is used to make the image-side focal plane of the main objective lens group also coincide with the patterned surface of the reticle. When the switching component is in a second state, the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group, the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group, and the first compensation lens is offset from the principal optical axis.

[0007] In an optional embodiment, the first compensation lens is disposed on the switching component, the first compensation lens can move with the switching component, the first compensation lens is disposed opposite to the reticle, and the optical axis of the first compensation lens coincides with the optical axis of the reticle.

[0008] In an optional embodiment, the compensation lens includes a second compensation lens. When the switching component is in the first state, the image-side focal plane of the main objective lens group and the object-side focal plane of the eyepiece group both coincide with the pattern surface of the reticle, and the second compensation lens is offset from the principal optical axis. When the switching component is in the second state, the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group, and the second compensation lens is located in the area between the night vision component and the main objective lens group. The second compensation lens is used to change the position of the image-side focal plane of the main objective lens group so that the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group.

[0009] In an optional embodiment, the second compensation lens is disposed on the switching component, the second compensation lens can move with the switching component, the second compensation lens is disposed opposite to the night vision component, and the optical axis of the second compensation lens coincides with the optical axis of the night vision component.

[0010] In an optional embodiment, the compensation lens includes a third compensation lens. When the switching component is in a first state, the patterned surface of the reticle coincides with the image-side focal plane of the main objective lens group, the third compensation lens is located on the principal optical axis, and the third compensation lens is located between the reticle and the eyepiece group. The third compensation lens is used to make the object-side focal plane of the eyepiece group also coincide with the patterned surface of the reticle. When the switching component is in a second state, the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group, the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group, and the third compensation lens is offset from the principal optical axis.

[0011] In an optional embodiment, the third compensation lens is disposed on the switching assembly, the third compensation lens can move with the switching assembly, the third compensation lens is disposed opposite to the reticle, and the optical axis of the third compensation lens is arranged to coincide with the optical axis of the reticle.

[0012] In an optional embodiment, the compensation lens includes a fourth compensation lens. When the switching component is in the first state, the image-side focal plane of the main objective lens group and the object-side focal plane of the eyepiece group both coincide with the pattern surface of the reticle, and the fourth compensation lens is offset from the main optical axis. When the switching component is in the second state, the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group, and the fourth compensation lens is located in the area between the night vision component and the eyepiece group. The fourth compensation lens is used to change the position of the object-side focal plane of the eyepiece group so that the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group.

[0013] In an optional embodiment, the fourth compensation lens is disposed on the switching component, the fourth compensation lens can move with the night vision component, the fourth compensation lens is disposed opposite to the night vision component, and the optical axis of the fourth compensation lens coincides with the optical axis of the switching component.

[0014] In a second aspect, a sight is provided, including a scope barrel and a lens mechanism as described in any of the preceding claims, wherein at least a portion of the switching component is movably disposed within the scope barrel.

[0015] The first aspect of this invention provides the following technical advantage: a switching component is provided between the primary objective lens group and the eyepiece group, and a reticle and a night vision component are mounted on the switching component. The switching component is movably positioned between the primary objective lens group and the eyepiece group, and it has a first state and a second state. In the first state, the reticle is located on the principal optical axis, and the night vision component is offset from the principal optical axis. In the second state, the night vision component is located on the principal optical axis, and the reticle is offset from the principal optical axis. By switching between the first and second states, the switching component can drive the movement of the reticle and the night vision component, thereby enabling rapid switching between white light and night vision modes for the lens mechanism, making the lens mechanism more convenient to use.

[0016] A compensating lens is also movably positioned between the main objective lens group and the eyepiece group. This compensating lens adjusts the position of the image-side focal plane of the main objective lens group or the object-side focal plane of the eyepiece group. In the first state, the image-side focal plane of the main objective lens group coincides with the patterned surface of the reticle, and the object-side focal plane of the eyepiece group also coincides with the patterned surface of the reticle. In the second state, the image-side focal plane of the main objective lens group coincides with the light-receiving surface of the night vision component, and the object-side focal plane of the eyepiece group coincides with the display surface of the night vision component. Compared to existing sights, the compensating lens allows for clear imaging in both white light and night vision conditions, avoiding the increased overall weight and chromatic aberration issues associated with thicker reticles, thus improving the user experience of the sight.

[0017] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the lens mechanism provided in Embodiment 1 of this utility model;

[0020] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0021] Figure 3 This is a schematic diagram of the lens mechanism provided in Embodiment 2 of this utility model;

[0022] Figure 4 yes Figure 3 Enlarged structural diagram at point B;

[0023] Figure 5 This is a schematic diagram of the lens mechanism provided in Embodiment 3 of this utility model;

[0024] Figure 6 yes Figure 5 Enlarged structural diagram at point C;

[0025] Figure 7 This is a schematic diagram of the lens mechanism provided in Embodiment 4 of this utility model;

[0026] Figure 8 yes Figure 7 Enlarged structural diagram at point D;

[0027] Figure 9 This is a schematic diagram of the lens mechanism provided in Embodiment 5 of this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Primary objective lens group; 2. Eyepiece group; 3. Switching assembly; 4. Reticle; 41. Pattern surface; 5. Night vision assembly; 51. Light-receiving surface; 52. Display surface; 53. Image sensor; 54. Display; 6. First compensation lens; 7. Second compensation lens; 8. Third compensation lens; 9. Fourth compensation lens; 10. Thermal imaging objective lens group; 11. Thermal imaging mechanism; 12. Principal optical axis; 13. Rotation axis. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0032] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] Please refer to Figures 1 to 8 As shown, in this embodiment of the present invention, a lens mechanism is provided, which includes a main objective lens group 1, an eyepiece group 2, and a switching component 3. The main objective lens group 1 and the eyepiece group 2 are spaced apart along the main optical axis 12. The switching component 3 is movably disposed between the main objective lens group 1 and the eyepiece group 2. The switching component 3 is provided with a reticle 4 and a night vision component 5. The switching component 3 has a first state and a second state. When the switching component 3 is in the first state, the reticle 4 is located on the main optical axis 12, and the night vision component 5 is deviated from the main optical axis 12. When the switching component 3 is in the second state, the night vision component 5 is located on the main optical axis 12, and the reticle 4 is deviated from the main optical axis 12.

[0036] A compensating lens is also movably disposed between the main objective lens group 1 and the eyepiece group 2. The compensating lens is used to adjust the position of the image-side focal plane of the main objective lens group 1 or the position of the object-side focal plane of the eyepiece group 2, so that when the switching component 3 is in the first state, the image-side focal plane of the main objective lens group 1 coincides with the position of the pattern surface 41 of the reticle 4, and at the same time, the object-side focal plane of the eyepiece group 2 also coincides with the position of the position of the pattern surface 41 of the reticle 4. At the same time, when the switching component 3 is in the second state, the image-side focal plane of the main objective lens group 1 coincides with the light-receiving surface 51 of the night vision component 5, and the object-side focal plane of the eyepiece group 2 coincides with the display surface 52 of the night vision component 5.

[0037] Specifically, the primary objective lens group 1 can be a single lens, or it can refer to a lens group composed of multiple lenses. The eyepiece group 2 can be a single lens, or it can refer to a lens group composed of multiple lenses. The switching assembly 3 refers to a component with a certain volume. The switching assembly 3 can be plate-shaped, cylindrical, columnar, etc., and can be composed of a combination of various shapes. The switching assembly 3 is movably disposed between the primary objective lens group 1 and the eyepiece group 2. The switching assembly 3 can be movably connected to the lens barrel. The movement of the switching assembly 3 can be linear or rotational around an axis. The first state and the second state refer to two different states of the switching assembly 3 during its movement. The first state and the second state can be two positions spaced apart on a straight line or two positions spaced apart on an arc, which can be selected according to the movement mode of the switching assembly 3, and will not be elaborated further here.

[0038] The reticle 4 refers to a light-transmitting component with a certain thickness, which can be made of high-quality glass or quartz. Its surface undergoes special treatment, resulting in high transparency, hardness, and excellent impact resistance. Various specific markings, such as gradation lines, scales, or degree rings, are engraved on the reticle 4 for aiming and measuring external objects. The surface of the reticle 4 with these markings is the patterned surface 41. The night vision component 5 refers to a component that enhances visual capabilities at night or in low-light environments. Its working principle involves capturing light through a photoelectric imaging device, converting it into electrical signals, and transmitting them to the display unit. During transmission, the signals are processed and enhanced, allowing the user to see images that are normally invisible to the naked eye through the display unit.

[0039] A compensating lens is an optical element made of transparent material. By setting up a compensating lens, the focal length of an optical system can be compensated. The compensating lens can be made of glass or acrylic.

[0040] The lens mechanism provided in this embodiment of the invention includes a switching component 3 disposed between the main objective lens group 1 and the eyepiece group 2, with a reticle 4 and a night vision component 5 mounted on the switching component 3. The switching component 3 is movably disposed between the main objective lens group 1 and the eyepiece group 2, and has a first state and a second state. When the switching component 3 is in the first state, the reticle 4 is located on the principal optical axis 12, and the night vision component 5 is offset from the principal optical axis 12. When the switching component 3 is in the second state, the night vision component 5 is located on the principal optical axis 12, and the reticle 4 is offset from the principal optical axis 12. By switching the switching component 3 between the first and second states, the reticle 4 and the night vision component 5 can be moved, thereby enabling the lens mechanism to quickly switch between white light and night vision modes, making the lens mechanism more convenient to use.

[0041] Simultaneously, a compensation lens is movably disposed between the main objective lens group 1 and the eyepiece group 2. This compensation lens is used to adjust the position of the image-side focal plane of the main objective lens group 1 or the object-side focal plane of the eyepiece group 2. When the switching assembly 3 is in its first state, the image-side focal plane of the main objective lens group 1 coincides with the pattern surface 41 of the reticle 4, and simultaneously, the object-side focal plane of the eyepiece group 2 also coincides with the pattern surface 41 of the reticle 4. When the switching assembly 3 is in its second state, the image-side focal plane of the main objective lens group 1 coincides with the light-receiving surface 51 of the night vision component 5, and the object-side focal plane of the eyepiece group 2 coincides with the display surface 52 of the night vision component 5. Compared with existing sights, the compensation lens enables clear imaging in both white light and night vision conditions, avoiding the problems of heavy overall weight and chromatic aberration caused by using a thicker reticle 4, thus improving the user experience of the sight.

[0042] In one embodiment, see Figure 1 and Figure 2 The compensation lens includes a first compensation lens 6. When the switching component 3 is in the first state, the pattern surface 41 of the reticle 4 coincides with the object-side focal plane of the eyepiece group 2. The first compensation lens 6 is located on the principal optical axis 12 and between the reticle 4 and the main objective lens group 1. The first compensation lens 6 is used to make the image-side focal plane of the main objective lens group 1 also coincide with the pattern surface 41 of the reticle 4. The night vision component 5 is set off from the principal optical axis 12.

[0043] Will Figure 1 and Figure 2 When the switching component 3 is rotated 90° clockwise to the second state, the light-receiving surface 51 of the night vision component 5 coincides with the image-side focal plane of the main objective lens group 1, the display surface 52 of the night vision component 5 coincides with the object-side focal plane of the eyepiece group 2, and the first compensation lens 6 and the reticle 4 are both offset from the main optical axis 12.

[0044] In this embodiment, when the switching component 3 is in the second state, the light-receiving surface 51 of the night vision component 5 coincides with the image-side focal plane of the main objective lens group 1, and the display surface 52 of the night vision component 5 coincides with the object-side focal plane of the eyepiece group 2. The first compensation lens 6 is offset from the principal optical axis 12, allowing for clear imaging in night vision mode. When the switching component 3 is in the first state, the pattern surface 41 of the reticle 4 coincides with the object-side focal plane of the eyepiece group 2. The first compensation lens 6 is located on the principal optical axis 12 and between the reticle 4 and the main objective lens group 1. The first compensation lens 6 is used to make the image-side focal plane of the main objective lens group 1 also coincide with the pattern surface 41 of the reticle 4, allowing for clear imaging in white light mode as well. By setting the first compensation lens 6, the focal length of the main objective lens group 1 can be changed, ensuring that the lens mechanism can achieve clear imaging in both white light and night vision modes while avoiding chromatic aberration that could affect image quality.

[0045] In addition, the first compensation lens 6 can be set on the switching component 3 and move together with the switching component 3, or it can be set on other moving parts, and the other moving parts drive the first compensation lens 6 to move in order to cooperate with the imaging of the reticle 4, making the first compensation lens 6 more convenient and flexible to use.

[0046] In one embodiment, see Figure 1 and Figure 2 The first compensating lens 6 is disposed on the switching assembly 3 and can move together with the switching assembly 3. The first compensating lens 6 is disposed opposite to the reticle 4, and the optical axis of the first compensating lens 6 coincides with the optical axis of the reticle 4. Specifically, by disposing of the first compensating lens 6 on the switching assembly 3, the first compensating lens 6 can move together with the reticle 4 and the night vision assembly 5, which makes the switching between white light mode and night vision mode of the scope faster and also makes the structure of the lens mechanism simpler.

[0047] In one embodiment, see Figure 3 and Figure 4 The compensation lens includes a second compensation lens 7. When the switching assembly 3 is in the first state, the image-side focal plane of the main objective lens group 1 and the object-side focal plane of the eyepiece group 2 both coincide with the pattern surface 41 of the reticle 4, and the second compensation lens 7 is offset from the principal optical axis 12. When the switching assembly 3 is in the second state, the display surface 52 of the night vision assembly 5 coincides with the object-side focal plane of the eyepiece group 2, and the second compensation lens 7 is located in the area between the night vision assembly 5 and the main objective lens group 1. The second compensation lens 7 is used to change the position of the image-side focal plane of the main objective lens group 1 so that the light-receiving surface 51 of the night vision assembly 5 coincides with the image-side focal plane of the main objective lens group 1.

[0048] In this embodiment, when the switching component 3 is in the first state, the image-side focal plane of the main objective lens group 1 and the object-side focal plane of the eyepiece group 2 both coincide with the pattern surface 41 of the reticle 4. The second compensation lens 7 is offset from the principal optical axis 12, enabling clear imaging in white light mode. When the switching component 3 is in the second state, the display surface 52 of the night vision component 5 coincides with the object-side focal plane of the eyepiece group 2. The second compensation lens 7 is located in the area between the night vision component 5 and the main objective lens group 1. The second compensation lens 7 is used to change the position of the image-side focal plane of the main objective lens group 1 so that the light-receiving surface 51 of the night vision component 5 coincides with the image-side focal plane of the main objective lens group 1, enabling clear imaging in night vision mode. By setting the second compensation lens 7, the focal length of the main objective lens group 1 can be changed, allowing the lens mechanism to achieve clear imaging in both white light and night vision modes while avoiding chromatic aberration that affects image quality.

[0049] In addition, the second compensation lens 7 can be set on the switching component 3 and move together with the switching component 3, or it can be set on other moving parts, and the other moving parts drive the second compensation lens 7 to move in order to cooperate with the imaging of the reticle 4, making the second compensation lens 7 more convenient and flexible to use.

[0050] In one embodiment, see Figure 3 and Figure 4 The second compensating lens 7 is disposed on the switching assembly 3 and can move with the switching assembly 3. The second compensating lens 7 is positioned opposite to the night vision assembly 5, and the optical axis of the second compensating lens 7 coincides with the optical axis of the night vision assembly 5. Specifically, by placing the second compensating lens 7 on the switching assembly 3, the second compensating lens 7 can move together with the reticle 4 and the night vision assembly 5, which makes the switching between white light mode and night vision mode of the scope faster and also makes the structure of the lens mechanism simpler.

[0051] In one embodiment, see Figure 5 and Figure 6 The compensation lens includes a third compensation lens 8. When the switching component 3 is in the first state, the pattern surface 41 of the reticle 4 coincides with the image-side focal plane of the main objective lens group 1. The third compensation lens 8 is located on the main optical axis 12 and is located between the reticle 4 and the eyepiece group 2. The third compensation lens 8 is used to make the object-side focal plane of the eyepiece group 2 also coincide with the pattern surface 41 of the reticle 4.

[0052] Will Figure 5 and Figure 6 When the switching component 3 is rotated 90° clockwise to the second state, the light-receiving surface 51 of the night vision component 5 coincides with the image-side focal plane of the main objective lens group 1, the display surface 52 of the night vision component 5 coincides with the object-side focal plane of the eyepiece group 2, and the third compensation lens 8 and the reticle 4 deviate from the principal optical axis 12.

[0053] In this embodiment, when the switching component 3 is in the first state, the pattern surface 41 of the reticle 4 coincides with the image-side focal plane of the main objective lens group 1. The third compensation lens 8 is located on the principal optical axis 12 and between the reticle 4 and the main objective lens group 1. The third compensation lens 8 is used to make the object-side focal plane of the eyepiece group 2 also coincide with the pattern surface 41 of the reticle 4, so that clear imaging can be achieved in white light mode. When the switching component 3 is in the second state, the light-receiving surface 51 of the night vision component 5 coincides with the image-side focal plane of the main objective lens group 1, and the display surface 52 of the night vision component 5 coincides with the object-side focal plane of the eyepiece group 2. The third compensation lens 8 is offset from the principal optical axis 12, so that clear imaging can be achieved in night vision mode. By setting the third compensation lens 8, the focal length of the eyepiece group 2 can be changed, so that the lens mechanism can achieve clear imaging in both white light and night vision modes, while avoiding chromatic aberration affecting the image quality.

[0054] In one embodiment, see Figure 5 and Figure 6 The third compensating lens 8 is disposed on the switching assembly 3 and can move with the switching assembly 3. The third compensating lens 8 is positioned opposite to the reticle 4, and the optical axis of the third compensating lens 8 coincides with the optical axis of the reticle 4. Specifically, by placing the third compensating lens 8 on the switching assembly 3, the third compensating lens 8 can move together with the reticle 4 and the night vision assembly 5, which makes the switching between white light mode and night vision mode of the scope faster and also makes the structure of the lens mechanism simpler.

[0055] In one embodiment, see Figure 7 and Figure 8 The compensation lens includes a fourth compensation lens 9. When the switching component 3 is in the first state, the image-side focal plane of the main objective lens group 1 and the object-side focal plane of the eyepiece group 2 are both superimposed on the pattern surface 41 of the reticle 4. The fourth compensation lens 9 is set off from the main optical axis 12. When the switching component 3 is in the second state, the light-receiving surface 51 of the night vision component 5 is superimposed on the image-side focal plane of the main objective lens group 1. The fourth compensation lens 9 is located in the area between the night vision component 5 and the eyepiece group 2. The fourth compensation lens 9 is used to change the position of the object-side focal plane of the eyepiece group 2 so that the display surface 52 of the night vision component 5 is superimposed on the object-side focal plane of the eyepiece group 2.

[0056] In this embodiment, when the switching component 3 is adjusted to the first state, the image-side focal plane of the main objective lens group 1 and the object-side focal plane of the eyepiece group 2 both coincide with the pattern surface 41 of the reticle 4, and the fourth compensation lens 9 is offset from the principal optical axis 12. At this time, clear imaging is possible in white light mode. When the switching component 3 is adjusted to the second state, the light-receiving surface 51 of the night vision component 5 coincides with the image-side focal plane of the main objective lens group 1. The fourth compensation lens 9 is located in the area between the night vision component 5 and the eyepiece group 2. The fourth compensation lens 9 is used to change the position of the object-side focal plane of the eyepiece group 2 so that the display surface 52 of the night vision component 5 coincides with the object-side focal plane of the eyepiece group 2, allowing for clear imaging in night vision mode. By setting the fourth compensation lens 9, the focal length of the eyepiece group 2 can be changed, ensuring clear imaging in both white light and night vision modes while avoiding chromatic aberration affecting image quality.

[0057] In addition, the fourth compensation lens 9 can be set on the switching component 3 and move together with the switching component 3, or it can be set on other moving parts, and the other moving parts drive the fourth compensation lens 9 to move in order to cooperate with the imaging of the reticle 4, making the fourth compensation lens 9 more convenient and flexible to use.

[0058] In one embodiment, see Figure 7 and Figure 8The fourth compensating lens 9 is disposed on the switching assembly 3. The fourth compensating lens 9 can move with the night vision assembly 5. The fourth compensating lens 9 is positioned opposite to the night vision assembly 5, and its optical axis coincides with the optical axis of the night vision assembly 5. Specifically, by placing the fourth compensating lens 9 on the switching assembly 3, it can move together with the reticle 4 and the night vision assembly 5, making the switching between white light and night vision modes of the scope faster and simplifying the structure of the lens mechanism.

[0059] In one embodiment, see Figures 1 to 8 The switching component 3 has a degree of freedom to rotate about a rotation axis, which is perpendicular to and intersects the main optical axis 12. Specifically, the degree of freedom of the switching component 3 to rotate about a rotation axis means that the switching component 3 can rotate about the rotation axis, and the rotation axis is perpendicular to and intersects the main optical axis 12. The switching component 3 adopts a rotating installation method, which can adjust the position of the night vision component 5 and the reticle 4 through its own movement, while also saving the space occupied by the switching component 3 during movement, reducing the overall size of the lens mechanism, and lowering the cost of the scope.

[0060] In one embodiment, see Figure 9 The night vision component 5 includes an image sensor 53 and a display 54. The lens mechanism also includes a thermal imaging objective lens group 10 and a thermal imaging module 11. The thermal imaging module 11 includes a detector and a signal processing unit. The detector and the signal processing unit are electrically connected, and the signal processing unit is electrically connected to the display 54. Specifically, the image sensor 53 is used to receive light and convert it into an electrical signal, which is then sent to the display 54. The display 54 is used to display the image. The image sensor 53 can be a CMOS image sensor or other types of detectors. The light-receiving surface 51 of the image sensor 53 is the light-receiving surface 51 of the entire night vision component 5, and the light-emitting surface of the display 54 is the display surface 52 of the entire night vision component 5. The night vision component 5, consisting of the image sensor 53 and the display 54, captures light and converts it into an electrical signal. After processing and enhancement, the electrical signal is sent to the display 54, which displays the processed signal. This allows the user to see images that are normally invisible to the naked eye, thus enhancing visual capabilities in low-light environments.

[0061] In addition, the lens mechanism also includes a thermal imaging objective lens group 10 and a thermal imaging module 11. The thermal imaging module 11 includes a detector and a signal processing unit. The detector and the signal processing unit are electrically connected, and the signal processing unit is electrically connected to the display 54. Specifically, the thermal imaging objective lens group 10 can be a single lens, or it can refer to a lens group composed of multiple lenses. The thermal imaging objective lens group 10 and the thermal imaging module 11 are arranged sequentially along a straight line parallel to the principal optical axis 12. Since the detector of the thermal imaging module 11 can detect light waves with wavelengths of 3 micrometers to 14 micrometers, the lens material used to transmit light waves of this wavelength is different from that used to transmit visible light. Therefore, the thermal imaging module 11 and the night vision component 5 cannot share an objective lens group; a separate thermal imaging objective lens group 10 is required. By arranging the thermal imaging objective lens group 10 and the thermal imaging mechanism 11 sequentially along a straight line parallel to the main optical axis 12, it is possible to ensure that the target image information obtained by the main objective lens group 1 and the thermal imaging objective lens group 10 is consistent when the user aims in white light mode and thermal imaging night vision mode, thereby making the lens mechanism more convenient to use.

[0062] The thermal imaging module 11 includes a detector and a signal processing unit. The detector is located at one end of the signal processing unit near the thermal imaging objective lens group 10 and is electrically connected to the signal processing unit. The signal processing unit is electrically connected to the display 54. Specifically, the detector is used to collect thermal information and transmit the thermal information to the signal processing unit. In the signal processing unit, the information is converted into digital information and sent to the display 54. The display 54 then converts the digital information into a visible image. When the switching component 3 is in the second state, the user can see the image on the display 54 through the eyepiece group 2, enabling the user to aim in thermal imaging night vision mode.

[0063] Secondly, a sight is provided, including a scope barrel and a lens mechanism as described above, wherein at least a portion of the switching component 3 is movably disposed within the scope barrel. It is understood that the beneficial effects of the second aspect can be found in the relevant descriptions of the first aspect above, and will not be repeated here.

[0064] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A lens mechanism, characterized in that, The device includes a main objective lens group, an eyepiece group, and a switching assembly. The main objective lens group and the eyepiece group are spaced apart along the main optical axis. The switching assembly is movably disposed between the main objective lens group and the eyepiece group. The switching assembly is provided with a reticle and a night vision component. The switching assembly has a first state and a second state. When the switching assembly is in the first state, the reticle is located on the main optical axis, and the night vision component is offset from the main optical axis. When the switching assembly is in the second state, the night vision component is located on the main optical axis, and the reticle is offset from the main optical axis. A compensation lens is also movably disposed between the main objective lens group and the eyepiece group. The compensation lens is used to adjust the position of the image-side focal plane of the main objective lens group or the object-side focal plane of the eyepiece group, so that when the switching component is in the first state, the image-side focal plane of the main objective lens group coincides with the pattern surface of the reticle, and the object-side focal plane of the eyepiece group also coincides with the pattern surface of the reticle. At the same time, when the switching component is in the second state, the image-side focal plane of the main objective lens group coincides with the light-receiving surface of the night vision component, and the object-side focal plane of the eyepiece group coincides with the display surface of the night vision component.

2. The lens mechanism as described in claim 1, characterized in that, The compensation lens includes a first compensation lens. When the switching component is in a first state, the patterned surface of the reticle coincides with the object-side focal plane of the eyepiece group. The first compensation lens is located on the principal optical axis and between the reticle and the main objective lens group. The first compensation lens is used to make the image-side focal plane of the main objective lens group also coincide with the patterned surface of the reticle. When the switching component is in a second state, the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group, the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group, and the first compensation lens is offset from the principal optical axis.

3. The lens mechanism as described in claim 2, characterized in that, The first compensation lens is disposed on the switching component and can move with the switching component. The first compensation lens is disposed opposite to the reticle and the optical axis of the first compensation lens coincides with the optical axis of the reticle.

4. The lens mechanism as described in claim 1, characterized in that, The compensation lens includes a second compensation lens. When the switching component is in the first state, the image-side focal plane of the main objective lens group and the object-side focal plane of the eyepiece group both coincide with the pattern surface of the reticle, and the second compensation lens is offset from the main optical axis. When the switching component is in the second state, the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group, and the second compensation lens is located in the area between the night vision component and the main objective lens group. The second compensation lens is used to change the position of the image-side focal plane of the main objective lens group so that the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group.

5. The lens mechanism as described in claim 4, characterized in that, The second compensation lens is disposed on the switching component and can move with the switching component. The second compensation lens is disposed opposite to the night vision component, and the optical axis of the second compensation lens coincides with the optical axis of the night vision component.

6. The lens mechanism as described in claim 1, characterized in that, The compensation lens includes a third compensation lens. When the switching component is in the first state, the pattern surface of the reticle coincides with the image-side focal plane of the main objective lens group, the third compensation lens is located on the principal optical axis, and the third compensation lens is located between the reticle and the eyepiece group. The third compensation lens is used to make the object-side focal plane of the eyepiece group also coincide with the pattern surface of the reticle. When the switching component is in the second state, the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group, the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group, and the third compensation lens is offset from the principal optical axis.

7. The lens mechanism as described in claim 6, characterized in that, The third compensation lens is disposed on the switching assembly. The third compensation lens can move with the switching assembly. The third compensation lens is disposed opposite to the reticle. The optical axis of the third compensation lens is coincident with the optical axis of the reticle.

8. The lens mechanism as described in claim 1, characterized in that, The compensation lens includes a fourth compensation lens. When the switching component is in the first state, the image-side focal plane of the main objective lens group and the object-side focal plane of the eyepiece group both coincide with the pattern surface of the reticle, and the fourth compensation lens is offset from the main optical axis. When the switching component is in the second state, the light-receiving surface of the night vision component coincides with the image-side focal plane of the main objective lens group, and the fourth compensation lens is located in the area between the night vision component and the eyepiece group. The fourth compensation lens is used to change the position of the object-side focal plane of the eyepiece group so that the display surface of the night vision component coincides with the object-side focal plane of the eyepiece group.

9. The lens mechanism as described in claim 8, characterized in that, The fourth compensation lens is disposed on the switching component. The fourth compensation lens can move with the night vision component. The fourth compensation lens is disposed opposite to the night vision component. The optical axis of the fourth compensation lens coincides with the optical axis of the switching component.

10. A sight, characterized in that, It includes a lens barrel and a lens mechanism as described in any one of claims 1 to 9, wherein at least a portion of the switching component is movably disposed within the lens barrel.

Images