A handheld observation instrument eyepiece structure

Abstract

This utility model discloses a handheld observation device eyepiece structure, including an eyepiece assembly, a fixing assembly, and an eyecup. The fixing assembly consists of first, second, and third fixing brackets connected sequentially by internal screws, all of which are hidden internally with no exposed threads. The eyepiece assembly integrates the OLED assembly, eyepiece tube assembly, large-diameter diopter adjustment handwheel, and connecting sleeve into one unit, achieving low-torque diopter adjustment through a threaded pair. The tail end of the integrated flexible eyecup is directly fixed to the fixing assembly, and the front end of the eyecup is designed with a curved surface to fit a universal human face model, which not only improves the ergonomics of the product but also provides strong light leakage prevention and enhances wearing comfort. This utility model features a compact structure, strong integration, and convenient adjustment, making it suitable for portable observation devices such as night vision devices and thermal imagers.

Description

Technical Field

[0001] This utility model relates to the field of observation and aiming equipment technology, specifically to a handheld observation instrument eyepiece structure. Background Technology

[0002] With the continuous upgrading and diversification of weapon systems in modern warfare, long-range detection and observation of enemy targets, as well as long-range identification and sniping of important targets, have become crucial aspects of modern warfare. Therefore, handheld observation devices with long-range detection and identification capabilities are increasingly widely used in warfare. While the objective lens system and component selection are important in the design and use of handheld observation devices, an excellent eyepiece system is also indispensable for achieving optimal detection and identification results. Existing multi-functional observation devices employ a split design for their eyepiece systems, with two eyepieces directly exposed at the rear. This limits the outer diameter of the diopter adjustment handwheel, resulting in a large starting torque and inconvenience for diopter adjustment. Furthermore, the eyecup area is directly fixed to the ends of the two eyepieces, leading to poor integration and inadequate light leakage prevention. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a handheld observation instrument eyepiece structure that solves the problems of large size, large adjustment torque, light leakage, and poor appearance consistency caused by the split design in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A handheld observation instrument eyepiece structure includes: an eyepiece assembly, a fixing assembly, and an eye shield; the fixing assembly consists of a first fixing bracket, a second fixing bracket, and a third fixing bracket connected in sequence; the first fixing bracket is connected to the observation instrument body via internal screws; the second fixing bracket is connected to the first fixing bracket and the third fixing bracket via internal screws respectively; the eyepiece assembly includes an OLED assembly, an eyepiece base, an eyepiece tube assembly, a clamping ring, a diopter adjustment handwheel, a transition ring, and a connecting sleeve; the eye shield is an integrated flexible cover, with its tail end fixed to the third fixing bracket and its front end conforming to the curved surface of a universal human face model.

[0005] Furthermore, the OLED assembly is mounted on the front end of the eyepiece base; the eyepiece tube assembly is axially slidably disposed within the eyepiece base; the connecting sleeve is rotatably mounted on the eyepiece base via a clamping ring and is clearance-fitted; the connecting sleeve and the eyepiece tube assembly are connected via a threaded pair; the diopter adjustment handwheel, the transition ring, and the connecting sleeve are fixed together by screws, and rotating the diopter adjustment handwheel drives the eyepiece tube assembly to move axially via the threaded pair.

[0006] The outer diameter of the diopter adjustment handwheel is ≥60mm to achieve large-diameter, low-torque adjustment.

[0007] The eye mask is integrally molded from silicone or rubber material, and the part that fits in contact with the face has a hyperboloid structure.

[0008] Compared with existing technologies, the advantages of this invention are as follows: This invention integrates the diopter adjustment handwheel with the fixing assembly. Compared with the separate eyepiece design of existing observation instruments, it not only has a stronger sense of unity but also increases the outer diameter of the diopter adjustment handwheel, enabling low-torque focusing and convenient diopter adjustment. Unlike existing observation instruments where the eyecup is directly fixed to the tail ends of the two eyepieces, this invention adopts an integrated eyecup design. The tail end of the eyecup is directly fixed to the fixing assembly, and the front end of the eyecup is designed with a curved surface to fit a universal human face model, which not only improves the ergonomics of the product but also provides strong light leakage prevention.

[0009] The overall design of the mounting assembly utilizes internal screw connections. The screws are cleverly and evenly distributed within the mounting bracket, resulting in a seamless, screw-free appearance when fully assembled, enhancing its unified look. This sleek design avoids snagging and meets the requirements of military applications. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the eyepiece structure of a handheld observation instrument according to this utility model; Figure 2 This is a schematic diagram of the eyepiece assembly described in this utility model; Figure 3 This is a structural schematic diagram of the fixing assembly described in this utility model. Detailed Implementation

[0011] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0012] like Figure 1 and Figure 3 As shown, a handheld observation instrument eyepiece structure includes: an eyepiece assembly 10, a fixing assembly 20, and an eyecup 30. The eyepiece assembly 10 is entirely installed within the central through-hole of the fixing assembly 20. The fixing assembly 20 consists of a first fixing bracket 21, a second fixing bracket 22, and a third fixing bracket 23. The first fixing bracket 21 is fixed to the observation instrument body via internal screws 24; the second fixing bracket 22 is connected to both the first fixing bracket 21 and the third fixing bracket 23 via additional internal screws 24. The third fixing bracket is screwed to the second fixing bracket, ensuring a tight fixation of the eyecup and providing optimal comfort during use. The overall design of the fixing assembly utilizes an internal screw connection method, with the screws cleverly and evenly distributed inside the fixing frame. After assembly, there are no screws visible from the outside, resulting in a strong sense of unity.

[0013] like Figure 2As shown, the eyepiece assembly 10 includes an OLED assembly 11, an eyepiece mount 12, an eyepiece tube assembly 13, a clamping ring 14, a diopter adjustment handwheel 15, a transition ring 16, and a connecting sleeve 17.

[0014] The OLED assembly 11 is mounted on the front end face of the eyepiece base 12, serving as the image source. The eyepiece tube assembly 13 is placed in the inner hole of the eyepiece base 12 and can slide along the optical axis. The connecting sleeve 17 is axially limited by the clamping ring 14 and rotatably mounted on the outer circle of the eyepiece base 12 with a clearance fit; the internal thread of the connecting sleeve 17 and the external thread of the eyepiece tube assembly 13 engage to form a threaded pair. The diopter adjustment handwheel 15, the transition ring 16, and the connecting sleeve 17 are fastened together by radial screws to form a large-diameter handwheel. When the user rotates the diopter adjustment handwheel 15, the connecting sleeve 17 rotates synchronously, driving the eyepiece tube assembly 13 to move back and forth through the threaded pair. In this embodiment, the outer diameter of the diopter adjustment handwheel is ≥60mm, which can achieve large-diameter low-torque adjustment and simultaneously achieve a diopter adjustment range of ±5D.

[0015] The eyepiece structure adopts the above-described design, integrating the diopter adjustment handwheel with the fixed assembly. Compared to the separate design of existing observation instrument eyepieces, this design not only provides a stronger sense of unity but also increases the outer diameter of the diopter adjustment handwheel, enabling low-torque focusing and convenient diopter adjustment.

[0016] The eye mask 30 is a one-piece flexible mask, with its tail end fixed to the third fixing bracket 23 by fasteners 25, and its front end conforming to the curved surface of a general human face model. In this embodiment, the eye mask 30 is integrally molded from rubber or silicone, with its tail end sleeved on the outer circle of the third fixing bracket 23 and limited by an annular groove. The part of the eye mask that fits with the human face is designed with a hyperbolic surface structure based on the facial features.

[0017] Unlike existing observation instruments that are designed as separate units with the two eyepieces fixed directly to the ends, this invention adopts an integrated eyepiece design. The end of the eyepiece is directly fixed to the fixing assembly, and the front end of the eyepiece is designed with a curved surface to fit a common human face model, which not only improves the ergonomics of the product but also provides strong light leakage prevention.

Claims

1. A handheld observation instrument eyepiece structure, characterized in that, include: The device comprises an eyepiece assembly, a fixing assembly, and an eye shield. The fixing assembly consists of a first fixing bracket, a second fixing bracket, and a third fixing bracket connected in sequence. The first fixing bracket is connected to the observation instrument body via internal screws. The second fixing bracket is connected to the first fixing bracket and the third fixing bracket via internal screws. The eyepiece assembly includes an OLED assembly, an eyepiece base, an eyepiece tube assembly, a clamping ring, a diopter adjustment handwheel, a transition ring, and a connecting sleeve. The eye shield is a one-piece flexible cover, with its tail end fixed to the third fixing bracket and its front end conforming to the curved surface of a universal human face model.

2. A hand held viewing scope eyepiece configuration according to claim 1 wherein, The OLED assembly is mounted on the front end of the eyepiece base; the eyepiece tube assembly is axially slidably disposed within the eyepiece base; the connecting sleeve is rotatably mounted on the eyepiece base with clearance fit via a clamping ring; the connecting sleeve and the eyepiece tube assembly are connected by a threaded pair; the diopter adjustment handwheel, the transition ring, and the connecting sleeve are fixed together by screws, and rotating the diopter adjustment handwheel drives the eyepiece tube assembly to move axially via the threaded pair.

3. A hand held viewing scope eyepiece structure according to claim 1 wherein, The outer diameter of the diopter adjustment handwheel is ≥60mm to achieve large-diameter, low-torque adjustment.

4. A hand held viewing scope eyepiece structure according to claim 1 wherein, The eye mask is integrally molded from silicone or rubber material, and the part that fits in contact with the face has a hyperboloid structure.

Images