Standby light source device for prism sighting telescope

By designing a backup light source device in the prism sight, the problem of image blurring caused by insufficient external light source is solved, enabling clear aiming and improved shooting accuracy in low-light environments.

CN223826894UActive Publication Date: 2026-01-23刘祎冰
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Patent Information

Application Number
CN202520593548.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-01-23
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing prism sights rely on external light sources to illuminate the image when external light conditions are not ideal, resulting in blurred images and affecting aiming accuracy.

Method used

A backup light source device was designed, including a backup light source holder and a fastening screw, which are fixed by a threaded connection. The backup light source tube can be inserted into the snap-fit ​​slot to provide an additional light source to supplement insufficient ambient light, and the light is transmitted to the display lens by an illumination fiber.

Benefits of technology

In low-light conditions, the backup light source significantly increases the brightness of the scope, ensuring the shooter can clearly observe in dim environments and improving shooting accuracy.

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Abstract

The utility model relates to the technical field of prism sighting telescope, and discloses a standby light source device for a prism sighting telescope, which comprises a sighting telescope main body and a prism shell, the prism shell is arranged in the sighting telescope main body, and a display lens for observation is fixedly connected in the prism shell. The interior of the prism shell is fixedly connected with an illumination optical fiber used for transmitting light, the illumination optical fiber is arranged outside the standby light source base, the interior of the threaded groove is in threaded connection with a fastening screw used for fixing, the interior of the standby light source base is provided with a clamping groove, and the interior of the clamping groove is connected with a standby light source tube body serving as a standby light source in a clamped mode. When the surrounding environment is dark, the protective cover is selectively opened, the standby light source tube bodies are inserted, the insufficient environment light is supplemented, the brightness of pictures projected by the sighting telescope is remarkably improved, a shooter can clearly see the pictures in the sighting telescope under the dark or night condition, and therefore the shooting accuracy is improved.
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Description

Technical Field

[0001] This utility model relates to the field of prism sights, and more particularly to a backup light source device for prism sights. Background Technology

[0002] As a precision optical aiming device, the core technology of the prism sight lies in using the optical properties of the prism to refract the target image into the shooter's line of sight, enabling fast and accurate aiming. Prism sights have advantages such as a wide field of view, clear image, and convenient adjustment, making them particularly suitable for use in complex and ever-changing tactical environments.

[0003] In existing technologies, prism sights, as important aiming devices, primarily work by using external optical fibers to illuminate internal illumination fibers, thereby transmitting light to illuminate the differentiated pattern inside the prism for clear and accurate aiming and observation. However, in practical use, this reliance on external light sources to illuminate the illumination fibers has revealed some limitations, especially when external light conditions are not ideal. When the external light source is insufficient, such as in dim light environments like dusk, dawn, or cloudy days, the amount of light captured by the illumination fibers is significantly reduced. This results in insufficient light to fully illuminate the image presented by the prism, leading to a blurred image that affects the observer's ability to observe. If the aiming point cannot be clearly identified, it becomes difficult for the observer to aim accurately, potentially leading to shooting errors, inaccurate observation data, and a series of other problems. Therefore, it is necessary to improve the backup light source device for prism sights to solve these problems. Utility Model Content

[0004] To overcome the problem that optical fiber illumination relies on external light to illuminate the image, and that when the external light source conditions are not ideal, the image will be blurred, affecting the observer's aiming.

[0005] The technical solution of this utility model is as follows: a backup light source device for a prism sight, including a sight body and a prism shell. The prism shell is disposed inside the sight body. A display lens for observation is fixedly connected inside the prism shell. An illumination fiber for transmitting light is fixedly connected inside the prism shell. A threaded groove is opened inside the sight body. A backup light source holder is disposed on the top of the sight body. The illumination fiber is disposed outside the backup light source holder. A fastening screw for fixing is threaded inside the threaded groove. A snap-fit ​​groove is opened inside the backup light source holder. A backup light source tube body, which serves as a backup light source, is snap-fitted inside the snap-fit ​​groove.

[0006] Preferably, the spare light source holder has a groove at the relative position of the fastening screw, and the fastening screw passes through the groove and is threaded into the inside of the threaded groove.

[0007] Preferably, four slots are provided, and the four slots are symmetrically provided inside the spare light source holder.

[0008] Preferably, the first through slot is elliptical in shape, and the lighting optical fiber passes through the first through slot and is positioned outside the spare light source holder.

[0009] Preferably, the scope body has an external threaded connection to a fiber optic mount, an illumination fiber optic cable is located outside the fiber optic mount, a first retaining ring is located inside the fiber optic mount, a fiber optic cover is located outside the fiber optic mount, a second through groove is opened inside the fiber optic mount, a second retaining ring is internally threaded to the fiber optic mount, and a protective cover is externally threaded to the fiber optic mount. By tightening the protective cover, the fiber optic cover and other components are limited in position.

[0010] Preferably, the second through slot is elliptical in shape, and the illumination optical fiber passes through the second through slot and is disposed outside the optical fiber holder.

[0011] Preferably, the fiber optic socket has a winding groove on its outside, the illumination fiber is placed inside the winding groove, and the position of the fiber optic cover corresponds to the position of the winding groove.

[0012] The beneficial effects of this utility model are as follows: When the surrounding environment is dark, the protective cover can be selectively opened to insert multiple spare light source tubes to supplement the insufficient ambient light and significantly improve the brightness of the image projected by the scope. This allows the shooter to clearly see the image in the scope even in dim or nighttime conditions, thereby improving the accuracy of shooting. This avoids the problem that the illumination fiber relies on an external light source to illuminate the image, which can lead to blurred images and affect the observer's aiming when the external light source conditions are not ideal. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic cross-sectional view of the main body of the sight of this utility model;

[0015] Figure 3 This is a schematic diagram of the optical fiber base and its connected components of this utility model;

[0016] Figure 4 This is an exploded structural diagram of the fiber optic base and its connected components of this utility model;

[0017] Figure 5 This is an enlarged structural diagram of the first through slot of this utility model;

[0018] Figure 6 This is an enlarged structural diagram of the second through slot of this utility model;

[0019] Figure 7This is an exploded structural diagram of the protective cover and its connected components of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Scope body; 21. Prism housing; 22. Display lens; 23. Illumination fiber; 24. Spare light source holder; 25. Fastening screw; 26. Spare light source tube body; 27. Fiber optic holder; 28. First retaining ring; 29. ​​Fiber optic cover; 210. First through slot; 211. Second through slot; 212. Second retaining ring; 213. Protective cover; 214. Threaded groove; 215. Snap-fit ​​groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 - Figure 7This utility model provides an embodiment of a backup light source device for a prism sight, comprising a sight body 1 and a prism housing 21. The prism housing 21 is disposed inside the sight body 1, and a display lens 22 for observation is fixedly connected inside the prism housing 21. An illumination fiber 23 for transmitting light is also fixedly connected inside the prism housing 21. A threaded groove 214 is formed inside the sight body 1, and a backup light source holder 24 is disposed on the top of the sight body 1. The illumination fiber 23 is disposed outside the backup light source holder 24. A fastening screw 25 for fixing is threaded inside the threaded groove 214. A snap-fit ​​groove 215 is formed inside the backup light source holder 24, and a backup light source is snap-fitted inside the snap-fit ​​groove 215. During installation, the prism housing 21 is installed inside the scope body 1 using the light source tube body 26, and the illumination fiber 23 is passed through the first through slot 210. The illumination fiber 23 can be flexibly selected as a light guide fiber or a fluorescent fiber according to the actual situation, which improves the overall applicability of the scope. After aligning the groove and threaded groove 214 of the spare light source base 24, the fastening screw 25 is passed through the groove opened inside the spare light source base 24 and threaded into the inside of the threaded groove 214 to complete the installation and fixation of the spare light source base 24. Then, the illumination fiber 23 passing through the first through slot 210 is wound around the outside of the spare light source base 24. In subsequent use, according to actual needs, the required number of spare light source tube bodies 26 are sequentially inserted into the snap-fit ​​slot 215. The light source tube body 26 can selectively use a tritium tube or an LED tube depending on the actual situation to provide optimal auxiliary lighting. The light is then emitted by the backup light source tube body 26 and transmitted through the lighting fiber optic 23, projecting the image onto the display lens 22 for user observation. The backup light source holder 24 has a groove at the opposite position of the fastening screw 25. The fastening screw 25 passes through the groove and is threaded into the inside of the threaded groove 214. The groove is designed to house the fastening screw 25, preventing it from protruding and affecting the flatness of the backup light source holder 24 surface, thus improving the overall integration and compactness of the scope. Four locking slots 215 are symmetrically located inside the backup light source holder 24. Depending on the ambient light level, multiple backup light source tubes 26 are selectively added to increase brightness and improve image clarity, thereby increasing the overall applicability of the scope. The first through slot 210 is elliptical in shape, and the illumination fiber 23 passes through the first through slot 210 and is positioned outside the backup light source base 24. The first through slot 210 avoids the internal space of the scope body 1 being enclosed, making it inconvenient for the illumination fiber 23 to be wound around the outside of the backup light source base 24. The scope body 1 is externally threaded with a fiber optic base 27, and the illumination fiber 23 is positioned outside the fiber optic base 27. A first retaining ring 28 is provided on the inner side of the fiber optic base 27, and a fiber optic cover 29 is provided on the outer side of the fiber optic base 27. A second through slot 211 is provided inside the fiber optic base 27.The fiber optic mount 27 has a second retaining ring 212 internally threaded and a protective cover 213 externally threaded. Tightening the protective cover 213 limits the movement of components such as the fiber optic cover 29 and protects the components connected to the inside of the fiber optic mount 27 from damage caused by external factors, thus affecting the overall lifespan of the scope. The second through slot 211 is elliptical in shape, through which the illumination fiber optic cable 23 passes and is positioned on the outside of the fiber optic mount 27. The second through slot 211 prevents the internal space of the fiber optic mount 27 from being completely enclosed. To prevent the illumination fiber optic cable 23 from protruding, a winding groove is provided on the outside of the fiber optic base 27. The illumination fiber optic cable 23 is placed inside the winding groove, and the position of the fiber optic cover 29 corresponds to the position of the winding groove. By providing the winding groove, the illumination fiber optic cable 23 is wound around the outside of the fiber optic base 27, preventing it from protruding. When the ambient light re-enhances, the light is transmitted through the transparent fiber optic cover 29 to the illumination fiber optic cable 23, and then conducted to the prism housing 21 for illumination, increasing the overall practicality of the scope.

[0023] During operation, the prism housing 21 is installed inside the scope body 1, and the illumination fiber 23 is passed through the first through groove 210. After aligning the groove of the spare light source holder 24 with the inside of the threaded groove 214, the fastening screw 25 is passed through the groove and threaded into the threaded groove 214, thus completing the installation of the spare light source holder 24. The illumination fiber 23, which has passed through the groove of the first through groove 210, is wound around the outside of the spare light source holder 24. The fiber holder 27 is then threaded onto the outside of the scope body 1, and the illumination fiber 23 is passed through the second through groove 211. After installing the fiber holder 27, the first retaining ring 28 is placed on top of the illumination fiber 23 wound around the outside of the spare light source holder 24 to restrict the illumination fiber 23 wound around the outside of the spare light source holder 24. The illumination fiber 23, which has passed through the second through groove 211, is then wound around the winding opening of the fiber holder 27. Inside the slot, after winding the illumination fiber 23, the fiber cover 29 is placed over the outside of the winding slot, and the second retaining ring 212 is threaded onto the inside of the fiber holder 27 to restrict the first retaining ring 28. Then, the protective cover 213 is threaded onto the outside of the fiber holder 27 to complete the assembly. When using the scope, when the ambient light is sufficient, the light shines through the fiber cover 29 onto the illumination fiber 23 wound around the outside of the winding slot of the fiber holder 27, and is transmitted through the illumination fiber 23 to the prism housing 21, thereby illuminating the image and displaying it through the display lens 22. When the ambient light is dim and insufficient to illuminate the image, the protective cover 213 is rotated to open it, and the spare light source tube body 26 is installed inside the snap-fit ​​slot 215. The spare light source tube body 26 emits light, which is transmitted through the illumination fiber 23 wound around the outside of the spare light source holder 24 to the prism housing 21 to illuminate the image.

[0024] Through the above steps, when the surrounding environment is dark, the protective cover 213 is selectively opened and multiple spare light source tube bodies 26 are inserted to solve the problem that the illumination fiber 23 relies on an external light source to illuminate the image. When the external light source conditions are not ideal, the image will be blurred, affecting the observer's aiming.

Claims

1. A backup light source device for a prism sight, comprising a sight body (1), characterized in that: It also includes a prism housing (21), the prism housing (21) is provided inside the main body (1) of the scope, a display lens (22) for observation is fixedly connected inside the prism housing (21), an illumination fiber (23) for transmitting light is fixedly connected inside the prism housing (21), a threaded groove (214) is provided inside the main body (1), a spare light source holder (24) is provided on the top of the main body (1), the illumination fiber (23) is provided outside the spare light source holder (24), a fastening screw (25) for fixing is threaded inside the threaded groove (214), a snap-fit ​​groove (215) is provided inside the spare light source holder (24), and a spare light source tube body (26) as a spare light source is snap-fitted inside the snap-fit ​​groove (215).

2. The backup light source device for a prism sight according to claim 1, characterized in that: The spare light source holder (24) has a groove at the opposite position of the fastening screw (25), and the fastening screw (25) passes through the groove and is threaded into the inside of the threaded groove (214).

3. The backup light source device for a prism sight according to claim 1, characterized in that: Four slots (215) are provided, and the four slots (215) are symmetrically provided inside the spare light source holder (24).

4. The backup light source device for a prism sight according to claim 1, characterized in that: The first through slot (210) is elliptical in shape, and the lighting optical fiber (23) passes through the first through slot (210) and is located outside the spare light source holder (24).

5. The backup light source device for a prism sight according to claim 1, characterized in that: The main body (1) of the scope is connected to an external threaded fiber optic mount (27). An illumination fiber optic cable (23) is located outside the fiber optic mount (27). A first retaining ring (28) is located inside the fiber optic mount (27). A fiber optic cover (29) is located outside the fiber optic mount (27). A second through groove (211) is opened inside the fiber optic mount (27). A second retaining ring (212) is connected to the internal thread of the fiber optic mount (27). A protective cover (213) is connected to the external thread of the fiber optic mount (27).

6. The backup light source device for a prism sight according to claim 5, characterized in that: The second through slot (211) is elliptical in shape, and the illumination fiber (23) passes through the second through slot (211) and is located outside the fiber optic base (27).

7. The backup light source device for a prism sight according to claim 1, characterized in that: The fiber optic base (27) has a winding groove on its outside, and the illumination fiber (23) is placed inside the winding groove. The position of the fiber optic cover (29) corresponds to the position of the winding groove.