Monocular handheld observation device

Abstract

The utility model discloses a monocular hand-held observation device, the disclosed monocular hand-held observation device comprises a cylindrical shell, a lens, an image sensor and an adjusting mechanism, the lens is arranged at the second end of the cylindrical shell, the image sensor is arranged in the cylindrical shell and is located between the first end of the cylindrical shell and the second end of the cylindrical shell, and the adjusting mechanism is arranged between the first end of the cylindrical shell and the second end of the cylindrical shell. The lens and / or the image sensor are / is movably arranged on the columnar shell; the adjusting mechanism comprises a transmission assembly and a control part, the control part is movably arranged at the observation end, at least part of the control part is exposed out of the columnar shell, and the control part is connected with the lens and / or the image sensor through the transmission assembly and drives the lens and / or the image sensor to move through the transmission assembly so as to adjust the focal length between the lens and the image sensor; the cylindrical shell is provided with a holding part, and the holding part is located between the lens and the control piece. According to the scheme, the problems that monocular handheld observation equipment in the prior art is low in flexibility and poor in portability during use can be solved.

Description

Technical Field

[0001] The utility model relates to the field of handheld observation devices, and particularly relates to a monocular handheld observation device. Background Art

[0002] In the field of optical devices, handheld observation devices (such as monocular telescopes, bird watching scopes, night vision devices, handheld thermal imagers) are widely used because they are easy to carry and operate.

[0003] When adjusting the focal length of a handheld observation device, the relative position between the lens and the image sensor (or the observer's eye point) is adjusted to achieve focusing. To achieve focusing, the handheld observation devices in the related art require the user to hold the lens barrel with one hand and use the other hand to adjust the focal length. Since the two-handed focusing method cannot well achieve rapid capture of rapidly changing scenes, resulting in low flexibility, and is not convenient for operation in narrow spaces or crowded environments, resulting in poor portability, the monocular handheld observation devices in the related art have problems of low flexibility and poor portability when in use. Summary of the Utility Model

[0004] The utility model discloses a monocular handheld observation device to solve the problems of low flexibility and poor portability of the monocular handheld observation devices in the related art when in use.

[0005] To solve the above technical problems, the utility model is implemented as follows:

[0006] The present application discloses a monocular handheld observation device. The disclosed monocular handheld observation device includes a columnar housing, a lens, an image sensor, and an adjustment mechanism. The first end of the columnar housing is the observation end. The lens is disposed at the second end of the columnar housing. The image sensor is disposed inside the columnar housing and is located between the first end and the second end of the columnar housing. The lens and / or the image sensor is movably disposed in the columnar housing;

[0007] The adjustment mechanism includes a transmission assembly and a control member. The control member is movably disposed at the observation end, and at least a part of the control member is exposed outside the columnar housing. The control member is connected to the lens and / or the image sensor through the transmission assembly and drives the lens and / or the image sensor to move through the transmission assembly to adjust the focal length between the lens and the image sensor;

[0008] The columnar housing has a holding portion, and the holding portion is located between the lens and the control member.

[0009] The technical solution adopted by the utility model can achieve the following technical effects:

[0010] In the monocular handheld observation device disclosed in the embodiments of the present application, by arranging the control member at the observation end of the columnar housing, when the user holds the monocular handheld observation device with one hand to view an image, both the control member and the user's thumb and index finger are located on one side of the observation end. Thus, when the user needs to adjust the focal length between the lens and the image sensor to adjust the performance of the viewed image, the user can operate the control member with the thumb or index finger of the hand holding the monocular handheld observation device, thereby realizing the functions of holding and focusing with one hand. Holding and focusing with one hand is beneficial for the user to quickly capture rapidly changing scenes, thereby improving the flexibility of the user when using the monocular handheld observation device. Moreover, holding and focusing with one hand is beneficial for the user to operate in a narrow space or a crowded environment, thereby improving the portability of the monocular handheld observation device. Description of the Drawings

[0011] Figure 1 It is an overall schematic diagram of the first monocular handheld observation device disclosed in the embodiments of the present invention;

[0012] Figure 2 It is a partial schematic diagram of the first monocular handheld observation device disclosed in the embodiments of the present invention;

[0013] Figure 3 It is a partial exploded schematic diagram of the first monocular handheld observation device disclosed in the embodiments of the present invention;

[0014] Figure 4 It is an overall schematic diagram of the second monocular handheld observation device disclosed in the embodiments of the present invention;

[0015] Figure 5 It is a partial schematic diagram of the second monocular handheld observation device disclosed in the embodiments of the present invention;

[0016] Figure 6 It is a partial exploded schematic diagram of the second monocular handheld observation device disclosed in the embodiments of the present invention.

[0017] Description of the Reference Numerals:

[0018] 100 - Columnar housing, 200 - Lens, 210 - Second rotating part, 220 - Fixing member,

[0019] 300 - Adjusting mechanism, 310 - Transmission assembly, 311 - Transmission rod, 311a - First rotating part, 311b - First rod, 311c - Second rod, 312 - Nut, 313 - External gear, 320 - Control member, 321 - Internal tooth structure, 330 - Rotating pin,

[0020] 400 - Button. Detailed Description of the Embodiments

[0021] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The technical solutions disclosed in each embodiment of the present utility model will be described in detail below in conjunction with the drawings.

[0023] Please refer to Figures 1 to 6 , an embodiment of the present utility model discloses a monocular handheld observation device. The disclosed monocular handheld observation device is an observation instrument with a single lens and convenient for handheld operation. For example, the monocular handheld observation device can be a monocular telescope, a bird watching scope, a night vision device, a handheld thermal imager, etc. The types of the monocular handheld observation device are not limited in the embodiments of the present application.

[0024] The monocular handheld observation device disclosed in the embodiments of the present application includes a columnar housing 100, a lens 200, an image sensor, and an adjustment mechanism 300. The columnar housing 100 can provide an installation basis for other components of the monocular handheld observation device. The first end of the columnar housing 100 can be an observation end. When a user uses the monocular handheld observation device, the observation end faces the user, and the user can view an image through the observation end. A display module can be arranged at the observation end, and the user can view an image through the display module.

[0025] The second end of the columnar housing 100 can be the light incident end when the monocular handheld observation device takes a picture. The lens 200 is arranged at the second end of the columnar housing 100. The first end and the second end of the columnar housing 100 can be arranged in opposite directions. The image sensor is arranged inside the columnar housing 100 and is located between the first end and the second end of the columnar housing 100. At least one of the lens 200 and the image sensor is movably arranged in the columnar housing 100.

[0026] The adjustment mechanism 300 includes a transmission component 310 and a control member 320. The control member 320 is movably disposed at the observation end, and at least a part of the control member 320 is exposed outside the cylindrical housing 100 to facilitate the user to operate the control member 320. It should be noted that when the user holds the monocular handheld observation device with one hand, the user's thumb and index finger are located on one side of the observation end of the monocular handheld observation device. When the user operates the monocular handheld observation device (such as adjusting the focal length, magnifying or reducing the image through a button or a knob), the user usually uses the thumb and index finger for operation. By movably disposing the control member 320 at the observation end, when the user holds the monocular handheld observation device with one hand, it is convenient for the user to operate the control member 320 with the hand holding the monocular handheld observation device.

[0027] The control member 320 is connected to at least one of the lens 200 and the image sensor through the transmission component 310. The control member 320 drives at least one of the lens 200 and the image sensor to move through the transmission component 310 to adjust the focal length between the lens 200 and the image sensor. Adjusting the focal length between the lens 200 and the image sensor is achieved by adjusting the distance between the lens 200 and the image sensor. The cylindrical housing 100 has a holding portion, and the holding portion is located between the lens 200 and the control member 320. The user can hold the monocular handheld observation device through the holding portion. Wherein, the movement of the lens 200 refers to the movement of the lens assembly for focusing.

[0028] During a specific shooting process, light is projected onto the image sensor through the lens 200 and thus captured by the image sensor to form the image described above. By changing the distance between the lens 200 and the image sensor, zoom shooting can be achieved.

[0029] In the monocular handheld observation device disclosed in the embodiment of the present application, by disposing the control member 320 at the observation end of the cylindrical housing 100, when the user holds the monocular handheld observation device with one hand to view an image, both the control member 320 and the user's thumb and index finger are on one side of the observation end. Thus, when the user needs to adjust the focal length between the lens 200 and the image sensor to adjust the performance of the viewed image, the user can operate the control member 320 with the thumb or index finger of the hand holding the monocular handheld observation device, thereby realizing the functions of holding the device with one hand and focusing. Holding the device with one hand and focusing is beneficial for the user to quickly capture rapidly changing scenes, thereby improving the flexibility of the user using the monocular handheld observation device. Moreover, holding the device with one hand and focusing is beneficial for the user to operate in a narrow space or a crowded environment, thereby improving the portability of the monocular handheld observation device.

[0030] Optionally, the control member 320 can be a scroll key. The monocular handheld observation device can further include a button 400. The control member 320 and the button 400 can be located on the same side of the cylindrical housing 100.

[0031] It should be noted that the function of the control member 320 is to adjust the focal length between the lens 200 and the image sensor. The function of the button 400 can be to control other functions of the monocular handheld observation device. For example, functions such as resolution selection, screen switching, and brightness adjustment can be achieved through the button 400. The specific control structure and principle belong to the prior art and will not be elaborated here.

[0032] The monocular handheld observation device disclosed in the embodiment of the present application is provided with the button 400, enabling the user to realize corresponding functions by operating the button 400, thereby making the functions of the monocular handheld observation device more powerful. By arranging the control member 320 and the button 400 on the same side of the cylindrical housing 100, when the user holds the monocular handheld observation device with one hand, the hand holding the monocular handheld observation device can operate the button 400, thus realizing the user's one-handed operation of the monocular handheld observation device.

[0033] Different users have different operating habits for the control member 320. Some users are accustomed to operating the control member 320 by pushing it to move. Therefore, the control member 320 can be movably arranged on the cylindrical housing 100, so that the user can move the control member 320 along the cylindrical housing 100 by pushing it, and the control member 320 drives one of the lens 200 and the image sensor to move to adjust the focal length between the lens 200 and the image sensor.

[0034] Of course, some users are accustomed to rotating the control member 320 to operate the control member 320. Optionally, the control member 320 can be rotatably arranged on the cylindrical housing 100 around the first axis. The control member 320 can be rotatably arranged on the cylindrical housing 100 through a bearing, or the control member 320 can directly adopt a rolling friction method to be rotatably connected to the cylindrical housing 100. When the control member 320 rotates around the first axis in the first direction, the control member 320 can drive the lens 200 and the image sensor to approach each other through the transmission assembly 310; when the control member 320 rotates around the first axis in the second direction, the control member 320 can drive the lens 200 and the image sensor to move away from each other, where the first direction can be opposite to the second direction.

[0035] The monocular handheld observation device disclosed in the embodiment of the present application is provided with the control member 320 rotatably arranged on the cylindrical housing 100 around the first axis, enabling the user to operate the control member 320 by turning it, so as to adapt to users who are accustomed to rotating the control member 320. Moreover, when the user operates the control member 320 by turning, it is more conducive to the stability of the user's operation, and thus conducive to improving the stability of adjusting the focal length between the lens 200 and the image sensor.

[0036] When a user holds a monocular handheld observation device with one hand and rotates the control member 320 by flicking it with the thumb, the control member 320 can be arranged at a position corresponding to the thumb on the cylindrical housing 100. The first axis can intersect or be skew to the central axis of the cylindrical housing 100. For example, the first axis can be perpendicular to the central axis of the cylindrical housing 100.

[0037] In the monocular handheld observation device disclosed in the embodiments of the present application, by setting the first axis to intersect or be skew to the central axis of the cylindrical housing 100, it is convenient for a user who operates the control member 320 with the thumb to perform operations.

[0038] When a user holds a monocular handheld observation device, the thumb is also used to hold the monocular handheld observation device, thereby improving the stability of the hold. The index finger has a higher degree of freedom. When the user holds the monocular handheld observation device, the index finger does not need to participate in the holding action. Therefore, it is more convenient for the index finger of the user to operate the control member 320. Optionally, in order to facilitate the user to operate the control member 320 with the index finger, the first axis can be parallel or coincident with the central axis of the cylindrical housing 100, so that it is easier for the user to rotate the control member 320 by flicking it with the index finger.

[0039] It should be noted that the cylindrical housing 100 is a cylindrical member, and the central axis of the cylindrical housing 100 refers to the central axis in the through direction of the cylindrical member.

[0040] As a transmission component, the transmission component 310 has many implementation manners. In the embodiment where the control member 320 moves along the cylindrical housing 100, the transmission component 310 can include a transmission rod. The control member 320 is directly connected to the lens 200 or the image sensor through the transmission rod. The control member 320 can move along the cylindrical housing 100 to directly drive the lens 200 or the image sensor to move, so as to realize the adjustment of the focal length between the lens 200 and the image sensor.

[0041] In the embodiment where the control member 320 moves along the cylindrical housing 100, the transmission component 310 can also drive the lens 200 and the image sensor to move together. For example, the transmission component 310 can include a rotating rod and a moving rod. The center of the rotating rod can be rotatably connected to the cylindrical housing 100. The lens 200 and the image sensor can be respectively connected to two ends of the rotating rod. One end of the moving rod can be connected to the control member 320, and the other end of the moving rod can be connected to any one end of the rotating rod. When the control member 320 moves, it drives the moving rod to move. The moving rod can drive the rotating rod to rotate around the rotation center of the rotating rod. The two ends of the rotating rod drive the lens 200 and the image sensor to move in opposite directions, so that the lens 200 and the image sensor located at both ends of the rotating rod move in opposite directions, thereby realizing the adjustment of the focal length between the lens 200 and the image sensor.

[0042] In an embodiment where the control member 320 rotates about the first axis, the transmission member may include a first gear, a second gear, a chain, a first rack, and a second rack. The first gear and the second gear may be rotatably disposed in the cylindrical housing 100, and the first rack and the second rack may be movably disposed in the cylindrical housing 100 (the first rack and the second rack may be movably disposed in the cylindrical housing 100 along the extension direction of the central axis of the cylindrical housing 100). The control member 320 may be connected to the first gear. When the control member 320 rotates about the first axis, it can drive the first gear to rotate. The first gear and the second gear may be connected by a chain. When the first gear rotates, it can drive the second gear to rotate through the chain. The first rack and the second rack are respectively engaged with the second gear, and the first rack and the second rack are located on opposite sides of the second gear. The lens 200 may be connected to the first rack, and the image sensor may be connected to the second rack. When the control member 320 drives the second gear to rotate through the first gear and the chain, the second gear drives the first rack and the second rack to move in opposite directions, so that the lens 200 and the image sensor approach or move away from each other. Of course, the transmission member may also include only one of the first rack and the second rack. When the control member 320 drives the second gear to rotate through the first gear and the chain, the second gear drives one of the lens 200 and the image sensor to move through the first rack or the second rack, so as to realize the approach or separation of the lens 200 and the image sensor from each other.

[0043] The above-described embodiments illustrate an example in which when the operating member 320 rotates about the first axis, the lens 200 and the image sensor approach or move away from each other in the central axis direction of the cylindrical member by moving. In another embodiment, the transmission assembly may include a telescopic rod, which is connected between the lens 200 and the operating member 320, or the telescopic rod is connected between the image sensor and the operating member 320. After the lens 200 or the image sensor is connected to the operating member 320 through the telescopic rod, the lens 200 or the image sensor and the operating member 320 can only move relative to each other in the telescopic direction of the telescopic rod (the telescopic direction of the operating member 320 can be parallel or coincident with the central axis of the cylindrical housing 100), and the lens 200 or the image sensor and the operating member 320 will not rotate relative to each other about the telescopic direction of the telescopic rod (that is, the lens 200 or the image sensor and the operating member 320 can rotate about the telescopic direction of the telescopic rod simultaneously, or neither rotates about the telescopic direction of the telescopic rod). The lens 200 or the image sensor can be threadedly connected to the cylindrical housing 100. When the operating member 320 rotates, the telescopic rod drives the lens 200 or the image sensor to rotate relative to the cylindrical housing 100. Since the lens 200 or the image sensor is threadedly connected to the cylindrical housing 100, when the lens 200 or the image sensor rotates relative to the cylindrical housing 100, the lens 200 or the image sensor will generate a displacement relative to the cylindrical housing 100 along the extension direction of the rotation axis of the lens 200 or the image sensor. At this time, the telescopic rod will expand or contract, so that the focal length between the lens 200 and the image sensor can be adjusted.

[0044] Of course, the lens 200 and the image sensor can be respectively connected to the operating member 320 through a telescopic rod. Both the lens 200 and the image sensor can be threadedly connected to the cylindrical housing 100, and the thread engagement direction between the lens 200 and the cylindrical housing 100 is opposite to the thread engagement direction between the image sensor and the cylindrical housing 100. Thus, when the operating member 320 rotates about the first axis, it can drive both the lens 200 and the image sensor to rotate, so that the lens 200 and the image sensor move in opposite directions along the extension direction of the rotation axis of the lens 200 or the image sensor, and thus the focal length between the lens 200 and the image sensor can be adjusted.

[0045] To improve the transmission accuracy of the transmission assembly 310, optionally, the transmission assembly 310 may include a transmission rod 311 and a nut 312. The first end of the transmission rod 311 may be connected to the lens 200 or the image sensor. The second end of the transmission rod 311 may have an external thread. The nut 312 may be disposed in the columnar housing 100 so as to rotate about a second axis, and the second axis may be parallel to or coincide with the central axis of the columnar housing 100. The nut 312 may be sleeved on the second end of the transmission rod 311 and may be in threaded engagement with the second end of the transmission rod 311. The control member 320 may be connected to the nut 312. When the control member 320 rotates about the first axis, the control member 320 may drive the nut 312 to rotate about the second axis.

[0046] It should be noted that the transmission assembly 310 may be disposed in the columnar housing 100. The nut 312 is disposed in the columnar housing 100 so as to rotate about the second axis, and the nut 312 does not move in the extending direction of the second axis. The transmission rod 311 may be disposed in the columnar housing 100 so as to move along the central axis direction of the columnar housing 100. The columnar housing 100 may limit the rotation of the transmission rod 311 about the central axis direction of the columnar housing 100. Alternatively, when the transmission rod 311 is connected to the lens 200 or the image sensor, the lens 200 or the image sensor limits the rotation of the transmission rod 311 about the central axis direction of the columnar housing 100. The nut 312 may have a relatively large length. One end of the nut 312 may be in threaded engagement with the second end of the transmission rod 311. The second end of the nut 312 may be rotatably connected to a rotating pin 330. The rotating pin 330 may be disposed in the columnar housing 100. The nut 312 may be mounted under the combined action of the rotating pin and the second end of the transmission rod 311.

[0047] In the monocular hand-held observation device disclosed in the embodiments of the present application, by setting the transmission assembly 310 to include a structure of a transmission rod 311 and a nut 312, the first end of the transmission rod 311 is connected to the lens 200 or the image sensor, and the second end of the transmission rod 311 is in threaded engagement with the nut 312. Thus, when the control member 320 drives the nut 312 to rotate about the second axis, the transmission rod 311 can drive the lens 200 or the image sensor to move through the threaded engagement between the nut 312 and the second end of the transmission rod 311. Since the accuracy of the threaded engagement is relatively high, the transmission accuracy of the transmission assembly 310 is relatively high, and further the movement accuracy of the lens 200 or the image sensor is relatively high.

[0048] The operating member 320 can be fixedly connected to the end face of the nut 312, so that when the operating member 320 rotates around the first axis, the operating member 320 can drive the nut 312 to rotate around the second axis. At this time, the first axis can coincide with the second axis. Of course, the operating member 320 can also be engaged with the nut 312 through an external tooth structure to achieve transmission. The embodiments of the present application do not specifically limit the cooperation manner between the operating member 320 and the nut 312.

[0049] To reduce the occupation of the space of the monocular handheld observation device by the components of the monocular handheld observation device, optionally, the operating member 320 can be sleeved on the nut 312, and the operating member 320 and the nut 312 can be in limit cooperation in the direction of the second axis to limit the relative rotation of the operating member 320 and the nut 312 in the direction of the second axis, so that the operating member 320 will drive the nut 312 to rotate synchronously when rotating. Since the operating member 320 is sleeved on the nut 312, it is beneficial to reduce the occupation of the space of the monocular handheld observation device by the operating member 320 and the nut 312.

[0050] Specifically, the limit cooperation between the operating member 320 and the nut 312 in the direction of the second axis can be limited by a limit pin. Of course, in another embodiment, the inner wall contour shape of the operating member 320 can be adapted to the outer contour shape of the nut 312, and the contour shapes can both be prismatic. The limit cooperation between the operating member 320 and the nut 312 in the direction of the second axis can be realized by the limit cooperation between the inner wall of the operating member 320 and the outer periphery of the nut 312.

[0051] To facilitate the operation of the operating member 320, optionally, an avoidance notch can be provided on the side wall of the columnar housing 100, and a part of the operating member 320 can extend out of the columnar housing 100 along the avoidance notch, so as to facilitate the user to operate the operating member.

[0052] In an alternative embodiment, the operating member 320 can be an annular structural member. The operating member 320 can be sleeved on the columnar housing 100. The inner wall of the operating member 320 can have an internal tooth structure 321. The transmission assembly 310 can further include an external gear 313. The external gear 313 can be connected to the nut 312. The external gear 313 can be engaged with the internal tooth structure 321. When the operating member 320 rotates around the first axis, the operating member 320 can drive the nut 312 to rotate around the second axis through the engagement between the internal tooth structure 321 and the external gear 313. Among them, the rotation center of the external gear 313 can coincide with the second axis, and the first axis can coincide with the central axis of the columnar housing 100.

[0053] In the monocular handheld observation device disclosed in the embodiments of the present application, by setting the control member 320 as an annular structural member, the control member 320 can be sleeved on the columnar housing 100. By providing an internal tooth structure 321 on the inner wall of the control member 320, the control member 320 can be meshed with the external gear 313 provided on the nut 312 through the internal tooth structure 321, thereby driving the nut 312 to rotate around the second axis. By setting the control member 320 as an annular structural member and sleeving it on the columnar housing 100, when the user holds the monocular handheld observation device at any angle, the control member 320 can be operated, making the operation of the control member 320 more convenient.

[0054] To facilitate the meshing of the control member 320 with the external gear 313, optionally, the columnar housing 100 can be provided with an avoidance notch, the external gear 313 can be opposite to the avoidance notch, the control member 320 can cover the avoidance notch, and the control member 320 is meshed with the external gear 313 through the avoidance notch. By providing the avoidance notch, the meshing of the control member 320 with the external gear 313 can be facilitated.

[0055] Optionally, the columnar housing 100 can be provided with an annular sunk groove in the circumferential direction, the avoidance notch can be located at the bottom wall of the annular sunk groove, and the control member 320 can be sleeved at the annular sunk groove so that the control member 320 is flush with the outer surface of the columnar housing 100, which is beneficial to improving the appearance performance of the monocular handheld observation device.

[0056] To avoid the first end of the transmission rod 311 being rigidly connected to the lens 200 or the image sensor, which is likely to cause damage to the connection between the transmission rod 311 and the lens 200 or the image sensor during transmission, optionally, the first end of the transmission rod 311 can have a first rotating portion 311a, the lens 200 or the image sensor can have a second rotating portion 210, and the first rotating portion can be rotatably connected to the second rotating portion. By rotatably connecting the first end of the transmission rod 311 to the lens 200 or the image sensor, there is a rotational margin at the connection between the first end of the transmission rod 311 and the lens 200 or the image sensor for buffering, thereby avoiding the problem of damage to the connection between the transmission rod 311 and the lens 200 or the image sensor during transmission.

[0057] Specifically, the first rotating part 311a and the second rotating part 210 can be hinged by a pin shaft. To improve the relative rotational ability of the first rotating part 311a and the second rotating part 210, optionally, the first rotating part 311a and the second rotating part 210 can be ball-jointed, thereby improving the relative rotational ability of the first rotating part and the second rotating part. For example, the first rotating part 311a can be spherical, the second rotating part 210 can include a first arc-shaped groove formed in the lens 200 or the image sensor and a second arc-shaped groove provided in the fixing member 220. The first rotating part 311a can be disposed in the first arc-shaped groove and is fastened to the first rotating part 311a through the second arc-shaped groove of the fixing member 220. The fixing member 220 is detachably connected to the lens 200 or the image sensor, so that the first rotating part 311a is ball-jointed with the first arc-shaped groove and the second arc-shaped groove. The inner walls of the first arc-shaped groove and the second arc-shaped groove are arc surfaces or spherical surfaces, and the first arc-shaped groove and the second arc-shaped groove can be fastened together to form a spherical space, thereby realizing spherical joint.

[0058] To facilitate the assembly and disassembly of the monocular handheld observation device, optionally, the transmission rod 311 can include a first rod member 311b and a second rod member 311c. The first end of the first rod member 311b can be connected to the lens 200 or the image sensor. In the case where the first rotating part 311a is provided, the first rotating part 311a can be located at the first end of the first rod member 311b, and the first end of the first rod member 311b can be connected to the lens 200 or the image sensor through the first rotating part 311a. The second end of the first rod member 311b can be detachably connected to the first end of the second rod member 311c. The second end of the second rod member 311c has an external thread, and the nut 312 can be sleeved on the second end of the second rod member 311c and can be in threaded engagement with the second end of the transmission rod 311. By setting the transmission rod 311 to include the structure of the first rod member 311b and the second rod member 311c, and the first rod member 311b and the second rod member 311c are detachably connected, the assembly and disassembly of the monocular handheld observation device disclosed in the embodiments of the present application are more convenient.

[0059] Of course, the transmission rod 311 can also be an integral structure, and the embodiments of the present application do not limit the specific structure of the transmission rod 311.

[0060] In the above embodiments of the present utility model, the differences between the various embodiments are mainly described. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, it will not be elaborated here.

[0061] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose of the present utility model and the scope protected by the claims, and all of them fall within the protection scope of the present utility model.

Claims

1. A monocular handheld observation device, characterized in that: The invention comprises a columnar housing (100), a lens (200), an image sensor and an adjustment mechanism (300), wherein the first end of the columnar housing (100) is an observation end, the lens (200) is arranged at the second end of the columnar housing (100), the image sensor is arranged in the columnar housing (100) and is located between the first end of the columnar housing (100) and the second end of the columnar housing (100), and the lens (200) and / or the image sensor are movably arranged in the columnar housing (100); The adjustment mechanism (300) comprises a transmission assembly (310) and a control member (320); the control member (320) is movably disposed at the observation end; at least a portion of the control member (320) is exposed outside the columnar housing (100); the control member (320) is connected to the lens (200) and / or the image sensor via the transmission assembly (310), and drives the lens (200) and / or the image sensor to move via the transmission assembly (310) so as to adjust the focal length between the lens (200) and the image sensor; The columnar housing (100) has a gripping portion, and the gripping portion is located between the lens (200) and the control member (320); The control member (320) is rotatably disposed on the columnar housing (100) around a first axis, and the first axis is parallel to or coincides with a central axis of the columnar housing (100).

2. The monocular handheld observation device according to claim 1, characterized in that: The control member (320) is a scroll key, and the monocular handheld observation device further comprises a button (400), and the control member (320) and the button (400) are located on the same side of the columnar housing (100).

3. The monocular handheld observation device according to claim 1, characterized in that: When the control member (320) rotates around the first axis in a first direction, the control member (320) drives the lens (200) and the image sensor to move closer to each other via the transmission assembly (310); When the operating member (320) rotates around the first axis in the second direction, the operating member (320) drives the lens (200) and the image sensor to move away from each other via the transmission assembly (310).

4. The monocular handheld observation device according to claim 3, characterized in that: The transmission assembly (310) comprises a transmission rod (311) and a nut (312); the first end of the transmission rod (311) is connected to the lens (200) or the image sensor; the second end of the transmission rod (311) has an external thread; the nut (312) is rotatably disposed on the columnar housing (100) around a second axis; the second axis is parallel to or coincides with the central axis of the columnar housing (100); the nut (312) is sleeved on the second end of the transmission rod (311) and is threadably engaged with the second end of the transmission rod (311); the control member (320) is connected to the nut (312); when the control member (320) rotates around the first axis, the control member (320) drives the nut (312) to rotate around the second axis.

5. The monocular handheld observation device according to claim 4, characterized in that: The control member (320) is sleeved on the nut (312), and the control member (320) and the nut (312) cooperate in a limit position in a direction around the second axis, so as to limit the relative rotation of the control member (320) and the nut (312) in a direction around the second axis.

6. The monocular handheld observation device according to claim 5, characterized in that: The side wall of the columnar housing (100) is provided with an escape notch, and a portion of the control member (320) extends out of the columnar housing (100) along the escape notch.

7. The monocular handheld observation device according to claim 4, characterized in that: The operating member (320) is an annular structural member, the operating member (320) is sleeved on the columnar housing (100), the inner wall of the operating member (320) has an internal tooth structure (321), the transmission assembly (310) further comprises an external gear (313), the external gear (313) is connected to the nut (312), the external gear (313) is meshed with the internal tooth structure (321), and when the operating member (320) rotates around the first axis, the operating member (320) drives the nut (312) to rotate around the second axis through the meshing of the internal tooth structure (321) and the external gear (313).

8. The monocular handheld observation device according to claim 7, characterized in that: The columnar housing (100) is provided with an escape notch, the external gear (313) is opposite to the escape notch, and the control member (320) covers the escape notch.

9. The monocular handheld observation device according to claim 4, characterized in that: The first end of the transmission rod (311) has a first rotating part (311a), the lens (200) or the image sensor has a second rotating part (210), and the first rotating part is rotatably connected to the second rotating part.

10. The monocular handheld observation device according to claim 9, characterized in that: The first rotating part (311a) and the second rotating part (210) are ball-jointed.

11. The monocular handheld observation device according to claim 4, characterized in that: The transmission rod (311) comprises a first rod member (311b) and a second rod member (311c); the first end of the first rod member (311b) is connected to the lens (200) or the image sensor; the second end of the first rod member (311b) is detachably connected to the first end of the second rod member (311c); and the second end of the second rod member (311c) has the external thread.

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