Laser ranging telescope with automatic focusing eyepiece

Abstract

The utility model relates to the field of measuring instruments, in particular to a laser ranging telescope with an automatic focusing eyepiece, which comprises a shell, and an eyepiece assembly, an objective lens assembly, a laser ranging assembly, a display screen and a circuit board which are arranged in the shell. The display screen is arranged between the eyepiece assembly and the objective lens assembly, the eyepiece assembly comprises an eyepiece lens and an adjusting structure capable of enabling the eyepiece lens to move far and near relative to the display screen, and the adjusting structure is connected with a driving device and can be driven by the driving device to adjust the distance between the eyepiece lens and the display screen so as to adjust the focal length. The laser ranging assembly, the display screen and the driving device are electrically connected with the circuit board. When the laser ranging telescope provided by the utility model is used, the driving device adjusts the distance between the eyepiece lens and the display screen so as to adjust the focal length and the matching diopter of the eyepiece and obtain a clear image.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measuring instrument especially relates to a laser ranging telescope with automatic focusing eyepiece. BACKGROUND

[0002] The laser ranging telescope is a kind of instrument using laser to carry out accurate ranging to target, and also can carry out long-distance observation to target.The ranging principle is to emit a fine laser to target, and measures the time of laser from emission to reception after being reflected by target, thereby calculating the distance from observer to target;The long-distance observation principle is to receive the light reflected by object by objective lens, and then displays the object received by objective lens through display screen arranged at the front end of eyepiece.

[0003] During the observation of operator, since directly observing the display content of built-in screen, so, the corresponding diopter is different when different people use it.Therefore, the distance between lens and display screen needs to be adjusted to obtain appropriate diopter and get clear image.However, the eyepiece focusing of existing laser ranging telescope adopts manual rotation focusing, so that two hands need to be operated when using, which brings inconvenience to observation.

[0004] The laser ranging telescope of present stage pays particular attention to its portability during use, and for small laser ranging telescope, compact structure and high portability are important, but for the adjustment of eyepiece, the external focusing knob not only occupies external space, but also is easy to be damaged by collision, further affecting the adjustment accuracy of eyepiece.The overall appearance is not simple and beautiful. UTILITY MODEL CONTENTS

[0005] (I) technical problem to be solved

[0006] The utility model provides a laser ranging telescope with automatic focusing eyepiece, and aims to solve the problem of how to automatically adjust the focal length of eyepiece according to different diopter during the use of small laser ranging telescope.

[0007] (II) technical scheme

[0008] In order to achieve the above purpose, the utility model provides a laser ranging telescope with automatic focusing eyepiece, which comprises a shell, an eyepiece assembly, an objective lens assembly, a laser ranging assembly, a display screen and a circuit board arranged in the shell.

[0009] The display screen is arranged between the eyepiece assembly and the objective lens assembly, the eyepiece assembly comprises an eyepiece lens and an adjusting structure capable of moving the eyepiece lens relative to the display screen, the adjusting structure is connected with a driving device and capable of adjusting the distance between the eyepiece lens and the display screen under the driving of the driving device to adjust the focal length. The laser ranging assembly, the display screen and the driving device are electrically connected with the circuit board.

[0010] Further, the driving device comprises a driving motor and a transmission member arranged at the output end of the driving motor, and the transmission member is in transmission connection with the adjusting structure.

[0011] Further, the transmission member is a transmission worm, the adjusting structure comprises a moving bracket and a limiting member, the upper end of the moving bracket is fixedly arranged with the eyepiece lens, the lower end is in transmission connection with the transmission worm through an internal tooth ring or a toothed plate, and the limiting member is capable of limiting the rotation of the moving bracket around the transmission worm.

[0012] Further, the limiting member is a limiting rod arranged along the axial direction of the worm, the moving bracket is provided with a limiting hole sleeved with the limiting rod, and the moving bracket is capable of reciprocating along the length direction of the limiting rod.

[0013] Further, the optical bracket is further arranged, the objective lens assembly and the laser ranging assembly are arranged side by side at the distal end of the optical bracket, and the eyepiece assembly is arranged at the proximal end of the optical bracket and between the objective lens assembly and the display screen.

[0014] Further, the housing is provided with a key assembly, the circuit board is provided with a controller, and the key assembly and the driving device are electrically connected with the controller; the key assembly comprises a first eyepiece adjusting key, a second eyepiece adjusting key, a function mode key and a power key.

[0015] Further, the power supply and a charging interface electrically connected with the circuit board are further arranged, and the housing is provided with a charging interface protection cover corresponding to the charging interface.

[0016] Further, the housing is provided with a dustproof lens corresponding to the eyepiece assembly.

[0017] (Three) beneficial effects

[0018] The beneficial effects of this invention are as follows: The telescope in this solution combines laser ranging with an autofocus eyepiece assembly, achieving integrated observation and ranging. This not only simplifies the operation process but also improves the overall performance and practicality of the telescope. The eyepiece assembly allows users to obtain clear images without manual focusing, enabling one-handed focusing. After the light reflected from the object passes through the objective lens assembly to form an image, the eyepiece automatically adjusts to the optimal position, ensuring a clear and blur-free image for the user. This improves the accuracy and efficiency of observation and greatly enhances the convenience and comfort of use. The autofocus function can adapt to users with different vision conditions, whether nearsighted, farsighted, or with normal vision, allowing for clear observation through automatic adjustment, thus enhancing the telescope's versatility and adaptability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a laser rangefinder telescope with an autofocus eyepiece.

[0020] Figure 2 This is a schematic diagram of the overall internal structure in Example 1;

[0021] Figure 3 This is a schematic diagram of the structure without the inner shell in Example 1;

[0022] Figure 4 This is a schematic diagram showing the connection between the drive device and the adjustment structure in Example 1.

[0023] [Explanation of Labels in the Attached Image]

[0024] 1: Outer shell; 11: Button assembly; 111: First eyepiece adjustment button; 112: Second eyepiece adjustment button; 113: Function mode button; 114: Power button; 12: Charging port protective cover; 2: Eyepiece assembly; 21: Eyepiece lens; 22: Adjustment structure; 221: Moving bracket; 222: Limiting rod; 3: Objective lens assembly; 4: Laser rangefinder assembly; 5: Display screen; 6: Circuit board; 7: Drive device; 71: Drive motor; 72: Transmission worm gear; 75: Motor mounting plate; 8: Optical bracket; 9: Charging port; 10: Inner shell. Detailed Implementation

[0025] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This embodiment provides a laser rangefinder telescope with an autofocus eyepiece, such as... Figures 1-4As shown, including the shell 1, set in the shell 1 eyepiece assembly 2, objective lens assembly 3, laser ranging assembly 4, display screen 5 and circuit board 6. Display screen 5 is provided between the eyepiece assembly 2 and the objective lens assembly 3, the eyepiece assembly 2 includes eyepiece lens 21 and the adjusting structure 22 can move the eyepiece lens 21 relative to the display screen 5, the adjusting structure 22 is connected with the driving device 7 and can adjust the distance between the eyepiece lens 21 and the display screen 5 under the driving of the driving device 7 to adjust the focal length. Laser ranging assembly 4, display screen 5 and driving device 7 are electrically connected with circuit board 6. The above-mentioned telescope combines the laser ranging assembly 4 with the eyepiece assembly 2, realizes the integration of observation and ranging, not only simplifies the operation process, but also improves the overall performance and practicality of the telescope. By driving device 7, the distance between the eyepiece lens 21 and the display screen 5 can be automatically adjusted to obtain clear image, greatly improving the convenience and comfort of use. The automatic focusing function can adapt to users with different vision, enhancing the versatility and adaptability of the telescope.

[0027] In this embodiment, the driving device 7 includes a driving motor 71 and a transmission member provided on the output end of the driving motor 71, and the transmission member is drivingly connected with the adjusting structure 22. The driving motor 71 is fixed on the motor fixing plate 75, and the motor fixing plate 75 is beneficial to improve the stability of the driving motor 71 during operation.

[0028] Specifically, the transmission member is a threaded rod 72, and the adjusting structure 22 includes a moving bracket 221 and a limiting piece. The upper end of the moving bracket 221 is fixedly provided with the eyepiece lens 21, and the lower end is drivingly connected with the threaded rod 72 through an internal tooth ring or a tooth plate. The limiting piece can limit the rotation of the moving bracket 221 around the threaded rod 72. The limiting piece is a limiting rod 222 arranged along the axial direction of the threaded rod, and the moving bracket 221 is provided with a limiting hole sleeved with the limiting rod 222, and the moving bracket 221 can reciprocate along the length direction of the limiting rod 222. The threaded rod 72 and the moving bracket 221 are drivingly connected through the internal tooth ring, which ensures the stability and accuracy of transmission. It should be noted that the threaded rod 72 can also be replaced by a transmission worm, and the internal tooth ring can also be replaced by a tooth plate. In short, any mechanism that can realize linear transmission can be used here.

[0029] The moving bracket 221 can move accurately along the limiting rod 222, which can ensure the accurate control of the position of the eyepiece lens 21. The overall structure is compact and simple, easy to manufacture and assemble. Due to the presence of the limiting rod 222, unnecessary rotation of the moving bracket 221 during transmission is avoided. In addition, as Figure 2 As shown, the driving device 7 and the eyepiece assembly 2 are protected by an inner shell 10, and some necessary supports are also provided.

[0030] As Figure 3As shown, the optical support 8 is further provided in the embodiment, the objective lens assembly 3 and the laser ranging assembly 4 are arranged side by side on the distal end of the optical support 8, the ocular lens assembly 2 is arranged on the proximal end of the optical support 8 and between the ocular lens assembly 2 and the objective lens assembly 3, the display screen 5 is arranged. It should be noted that the distal end refers to the end far away from the human eye when the telescope is used, and the proximal end refers to the end close to the human eye when the telescope is used.

[0031] In the embodiment, a dustproof lens is arranged on the shell corresponding to the ocular lens assembly to protect the ocular lens 21. The shell 1 is further provided with a key assembly 11, and the circuit board 6 is provided with a controller. The key assembly 11 and the driving device 7 are both electrically connected to the controller. The controller is used to transmit and receive control signals.

[0032] In the embodiment, the key assembly 11 includes a first ocular lens adjusting key 111, a second ocular lens adjusting key 112, a function mode key 113 and a power key 114. Specifically, when the first ocular lens adjusting key 111 is pressed, the moving bracket 221 drives the ocular lens 21 to move close to the display screen 5, and when the second ocular lens adjusting key 112 is pressed, the moving bracket 221 drives the ocular lens 21 to move away from the display screen 5.

[0033] The embodiment further includes a power supply and a charging interface 9 electrically connected to the circuit board 6, and a charging interface protection cover 12 is arranged on the shell 1 corresponding to the charging interface 9. The type of the charging interface 9 is type-c, which has a wider application range, and the charging interface protection cover 12 provides physical protection for the charging interface 9.

[0034] It should be noted that all directional indications in the embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship, motion condition, etc. between the components in a certain specific posture, such as shown in the drawings, if the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, in the embodiment, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In the description of the embodiment, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0036] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this embodiment can be understood according to the specific circumstances.

[0037] It should be understood that the above description of specific embodiments of the utility model is only for the purpose of illustrating the technical route and characteristics of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and to implement it, but the utility model is not limited to the above specific implementation. Any changes or modifications made within the scope of the claims of the utility model should be covered within the protection scope of the utility model.

Claims

1. A laser range-finding telescope having an auto-focus eyepiece, characterized by, It comprises a shell (1), an ocular lens assembly (2), an objective lens assembly (3), a laser ranging assembly (4), a display screen (5) and a circuit board (6) arranged in the shell (1); The display screen (5) is arranged between the ocular lens assembly (2) and the objective lens assembly (3), the ocular lens assembly (2) comprises an ocular lens (21) and an adjusting structure (22) capable of moving the ocular lens (21) away from or close to the display screen (5), the adjusting structure (22) is connected with a driving device (7) and can adjust the distance between the ocular lens (21) and the display screen (5) to adjust the focal length under the driving of the driving device (7); The laser ranging assembly (4), the display screen (5) and the driving device (7) are electrically connected with the circuit board (6).

2. The laser range finder telescope with automatic focusing eyepiece according to claim 1, characterized in that, The driving device (7) comprises a driving motor (71) and a transmission member arranged at the output end of the driving motor (71), and the transmission member is in transmission connection with the adjusting structure (22).

3. The laser range finder telescope with automatic focusing eyepiece of claim 2, wherein, The transmission member is a threaded rod (72), the adjusting structure (22) comprises a moving bracket (221) and a limiting member, the upper end of the moving bracket (221) is fixedly provided with the ocular lens (21), the lower end is in transmission connection with the threaded rod (72) through an internal gear ring or a toothed plate, and the limiting member can limit the rotation of the moving bracket (221) around the threaded rod (72).

4. The laser range finder telescope with automatic focusing eyepiece of claim 3, wherein, The limiting member is a limiting rod (222) arranged along the axial direction of the threaded rod (72), the moving bracket (221) is provided with a limiting hole sleeved with the limiting rod (222), and the moving bracket (221) can reciprocate along the length direction of the limiting rod (222).

5. The laser range finder telescope with automatic focusing eyepiece of claim 1, wherein, It also comprises an optical bracket (8), the objective lens assembly (3) and the laser ranging assembly (4) are arranged side by side at the far end of the optical bracket (8), and the ocular lens assembly (2) is arranged at the near end of the optical bracket (8) and between the objective lens assembly (3) and the display screen (5).

6. The laser range finder telescope with automatic focusing eyepiece of claim 1, wherein, A key assembly (11) is arranged on the shell (1), a controller is arranged on the circuit board (6), and the key assembly (11) and the driving device (7) are electrically connected to the controller; The key assembly (11) comprises a first ocular lens adjusting key (111), a second ocular lens adjusting key (112), a function mode key (113) and a power key (114).

7. The laser range finder telescope with automatic focusing eyepiece of claim 1, wherein, It also comprises a power supply and a charging interface (9) electrically connected with the circuit board (6), and a charging interface protection cover (12) is arranged on the shell (1) corresponding to the charging interface (9).

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