Monocular handheld device

Abstract

A monocular handheld device, comprising: a machine body assembly; an eyepiece assembly, arranged at the rear end of the machine body assembly; and an objective lens assembly, arranged at the front end of the machine body assembly and comprising a supporting main body, a first lens, a second lens, and a gain fill light, the supporting main body being arranged on the machine body assembly, the first lens, the second lens, and the gain fill light being all arranged on the supporting main body, and the optical axis of the first lens being parallel to that of the second lens, wherein the first lens is an infrared lens, and the second lens is a low-light lens; or the first lens is a low-light lens, and the second lens is an infrared lens. By applying the monocular handheld device, multi-light fusion of low light and infrared can be realized, and light filling is realized by arranging the gain fill light, thereby expanding the user use scenario.

Description

A monocular handheld device

[0001] This application claims priority to the Chinese patent application with application number 202323196562.1 filed with the China Patent Office on November 22, 2023, and with the invention name “A monocular handheld device”, the Chinese patent application with application number 202420944560.1 filed with the China Patent Office on April 30, 2024, and with the invention name “A monocular handheld device”, the Chinese patent application with application number 202410542310.X filed with the China Patent Office on April 30, 2024, and with the invention name “A monocular handheld device and objective lens assembly”, and the Chinese patent application with application number 202420944539.1 filed with the China Patent Office on April 30, 2024, and with the invention name “A support body and objective lens assembly for a monocular handheld device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of imaging devices, and more particularly to a monocular handheld device. Background Art

[0003] In outdoor sports and observation, infrared thermal imaging technology, with its unique principle, can help users quickly identify and locate targets. However, because infrared thermal imaging relies on temperature differences, it suffers from low contrast and poor detail resolution in scenes with minimal temperature differences. Starlight night vision technology can achieve clear images in low-light environments, even with only starlight, facilitating the identification and investigation of detailed scenes and environments. The large array of low-light detectors can also compensate for the infrared's short recognition range. In outdoor use, the combination of infrared thermal imaging and starlight night vision offers significant advantages in image quality, adaptability, and field of view.

[0004] Some monocular handheld devices on the market are only equipped with visible light lenses, which make target detection slow; some are equipped with infrared lenses and visible light lenses, which can provide infrared thermal imaging and visible light imaging, and can realize the fusion of visible light and infrared images, but the imaging effect is still poor in pure darkness.

[0005] In summary, how to effectively solve the problem of poor imaging effect of monocular handheld devices in pure darkness while ensuring target detection speed is a problem that currently needs to be solved by those skilled in the art.

[0006] Summary of the Invention

[0007] In view of this, an object of the present invention is to provide a monocular handheld device, the structural design of which can effectively solve the problem of poor imaging effect of the monocular handheld device in a pure dark environment while ensuring the target detection speed.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A monocular handheld device, comprising:

[0010] fuselage components;

[0011] an eyepiece assembly, disposed at the rear end of the body assembly;

[0012] An objective lens assembly is provided at the front end of the body assembly, and includes a supporting body, a first lens, a second lens, and a gain fill light. The supporting body is provided on the body assembly, the first lens, the second lens, and the gain fill light are all provided on the supporting body, and the optical axes of the first lens and the second lens are parallel; wherein the first lens is an infrared lens, and the second lens is a low-light lens; or, the first lens is a low-light lens, and the second lens is an infrared lens.

[0013] Optionally, in the above-mentioned monocular handheld device, the low-light lens is a starlight night vision lens or a low-light level night vision lens.

[0014] Optionally, in the above-mentioned monocular handheld device, the first lens and the second lens are slidably provided on the supporting body along their respective optical axis directions.

[0015] Optionally, the above-mentioned monocular handheld device further includes a first focusing ring and a second focusing ring arranged in sequence along the axial direction, and the first focusing ring and the second focusing ring are respectively rotatably arranged on the outer periphery of the supporting body, and the first focusing ring is used to drive the first lens to move along the optical axis, and the second focusing ring is used to drive the second lens to move along the optical axis.

[0016] Optionally, in the above-mentioned monocular handheld device, the first focus ring or the second focus ring located on the outside protrudes axially from the first lens, the second lens and the gain fill light.

[0017] Optionally, in the above-mentioned monocular handheld device, the gain fill light is a fixed-focus fill light or a zoom fill light.

[0018] Optionally, in the above-mentioned monocular handheld device, the zoom fill light includes a fill light housing, a fill light adjustment member, a lamp body and a lens, the lens is arranged at one end of the fill light housing, the lamp body is arranged on the fill light adjustment member, and the fill light adjustment member is axially slidably arranged at the other end of the fill light housing to adjust the focal length of the lamp body.

[0019] Optionally, in the above-mentioned monocular handheld device, the first focusing ring or the second focusing ring that cooperates with the low-light lens cooperates with the fill light adjustment member and is used to drive the low-light lens and the fill light adjustment member to slide axially.

[0020] Optionally, in the above-mentioned monocular handheld device, the gain fill light includes an LED fill light or a laser fill light.

[0021] Optionally, in the above-mentioned monocular handheld device, the supporting body is provided with an infrared detection position for installing an infrared detector, and / or a low-light detection position for installing a low-light detector, and / or a fill light position for installing the gain fill light.

[0022] Optionally, the above-mentioned monocular handheld device further includes a laser ranging module and / or a laser pointing module, and the fill light position is used to detachably install one of the gain fill light, the laser ranging module and the laser pointing module.

[0023] Optionally, in the above-mentioned monocular handheld device, a battery compartment and a heat dissipation component are respectively provided on two opposite sides of the outer peripheral surface of the body assembly;

[0024] The body assembly is provided with a power button and / or a camera button.

[0025] The monocular handheld device provided by the present invention has an objective lens assembly including an infrared lens, a low-light lens, and a gain fill light, all of which are arranged on a supporting body. The optical axes of the infrared lens and the low-light lens are parallel, thereby achieving multi-light fusion of low-light and infrared while ensuring the target detection speed. By providing the gain fill light, clear imaging can be achieved even in a completely dark environment, thereby expanding the user usage scenarios of the monocular handheld device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] FIG1 is a schematic structural diagram of a monocular handheld device according to a specific embodiment of the present invention;

[0028] FIG2 is a schematic diagram of FIG1 from another perspective;

[0029] FIG3 is a schematic structural diagram of an objective lens assembly;

[0030] FIG4 is a schematic diagram of FIG3 from another perspective;

[0031] FIG5 is a schematic diagram of the explosion structure of FIG3 ;

[0032] FIG6 is a schematic cross-sectional view of FIG3 ;

[0033] FIG7 is a schematic diagram of the installation method of the gain fill light;

[0034] FIG8 is a schematic diagram of the structure of a gain fill light;

[0035] FIG9 is a schematic cross-sectional view of a gain fill light;

[0036] FIG10 is a schematic diagram showing the coordination between the gain fill light, the second lens, and the second focus ring;

[0037] FIG11 is a schematic structural diagram of a first focusing ring;

[0038] FIG12 is a schematic structural diagram of a first lens;

[0039] FIG13 is a schematic structural diagram of a second lens;

[0040] FIG14 is a schematic diagram of another embodiment of the cooperation between the first focusing ring and the first lens;

[0041] FIG15 is another structural schematic diagram of the first focusing ring;

[0042] FIG16 is another structural schematic diagram of the first lens;

[0043] FIG17 is a schematic diagram of the interior of the fuselage assembly (the outer shell is not shown).

[0044] Reference numerals: 100 - body assembly; 200 - eyepiece assembly; 300 - objective lens assembly; 110 - housing; 120 - bracket; 130 - heat sink; 140 - battery compartment; 150 - universal 1 / 4" connector; 160 - power button; 170 - photo button; 180 - rotary encoder assembly; 310 - support body; 311 - front flange; 312 - rear flange; 313 - middle piece; 320 - first lens; 321-first external thread; 322-first slide groove; 323-first boss; 324-first avoidance groove; 330-second lens; 331-second external thread; 340-first focusing ring; 341-first internal thread; 342-first protrusion; 350-second focusing ring; 360-gain fill light; 361-fill light housing; 362-fill light adjustment member; 363-lamp body; 364-lens; 365-base plate; 370-infrared detection position; 380-low light detection position; 390-flexible protective ring. DETAILED DESCRIPTION

[0045] The embodiment of the present invention discloses a monocular handheld device to expand the usage scenarios of users of multi-optical devices.

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] In one embodiment, referring to Figures 1 to 6, the monocular handheld device provided by the present invention includes a body assembly 100, an eyepiece assembly 200, and an objective lens assembly 300. The body assembly 100 is the main gripping portion of the monocular handheld device, on which various function buttons can be set, and the circuit board and battery of the monocular handheld device can be set inside the body assembly 100. The eyepiece assembly 200 is arranged at the rear end of the body assembly 100. Its specific structure can be referred to as a conventional monocular handheld device and will not be described in detail here. It can be understood that the rear end here refers to the end of the monocular handheld device that is close to the user's eyes when in use, and the corresponding front end is the end away from the user's eyes. The objective lens assembly 300 is located at the front end of the body assembly 100 and includes a support body 310, a first lens 320, a second lens 330, and a boost light 360. The support body 310 is located on the body assembly 100, and the first lens 320, the second lens 330, and the boost light 360 are all located on the support body 310. The optical axes of the first lens 320 and the second lens 330 are parallel. The first lens 320 is an infrared lens, and the second lens 330 is a low-light lens; alternatively, the first lens 320 is a low-light lens, and the second lens 330 is an infrared lens. The first lens 320 and the second lens 330 can achieve multi-light fusion.

[0048] In the monocular handheld device provided by the present invention, the objective lens assembly 300 includes a first lens 320, a second lens 330 and a gain fill light 360, and all three are arranged on the supporting body 310. The optical axes of the first lens 320 and the second lens 330 are parallel, thereby enabling multi-light fusion of low illumination and infrared. By setting the gain fill light 360, clear imaging can be achieved even in a completely dark environment, thereby expanding the user usage scenarios of the monocular handheld device.

[0049] In some embodiments, the low-light lens is a starlight night vision lens or a low-light night vision lens, so as to better meet the imaging requirements in a dark environment.

[0050] In some embodiments, the first lens 320 and the second lens 330 are slidably mounted on the support body 310 along their respective optical axes. The first lens 320 and the second lens 330 are slidably mounted on the support body 310 along their respective optical axes. The first lens 320 and the second lens 330 can be moved back and forth along their respective optical axes, changing the distance between the mirror surfaces of the first lens 320 and the second lens 330 and the detector target surface, thereby achieving individual focal length adjustment for clear imaging.

[0051] In some embodiments, the monocular handheld device further includes a first focus ring 340 and a second focus ring 350 arranged in sequence along the axial direction. The first focus ring 340 and the second focus ring 350 are respectively rotatably arranged on the outer periphery of the support body 310. The first focus ring 340 is used to drive the first lens 320 to move along its optical axis, and the second focus ring 350 is used to drive the second lens 330 to move along its optical axis. Specifically, the first focus ring 340 and the second focus ring 350 are coaxial and are sequentially sleeved outside the first lens 320 and the second lens 330 along the axial direction. The first focus ring 340 and the second focus ring 350 are respectively rotatable around the axial direction. It should be noted that the first focus ring 340 and the second focus ring 350 can be either a closed circular ring or a partial circular ring, that is, an open structure. When the first focusing ring 340 rotates around the axis, it can drive the first lens 320 to move forward and backward, so as to change the distance from the mirror surface of the first lens 320 to the target surface of the detector, thereby realizing the independent focusing of the first lens 320; when the second focusing ring 350 rotates around the axis, it can drive the second lens 330 to move forward and backward, so as to change the distance from the mirror surface of the second lens 330 to the target surface of the detector, thereby realizing the independent focusing of the second lens 330.

[0052] In some embodiments, the outer first focus ring 340 or the outer second focus ring 350 protrudes axially from the first lens 320, the second lens 330, and the boost light 360. For example, in the case where the first focus ring 340 is positioned outermost, i.e., axially outwardly of the monocular handheld device relative to the second focus ring 350, the first lens 320, the second lens 330, and the boost light 360 are all enclosed within the first focus ring 340, rather than being positioned separately protruding from the lens barrel. Enclosing all three within the same large lens barrel results in a cleaner, more aesthetically pleasing design and a simpler, more compact structure. In other embodiments, the first lens 320, the second lens 330, and the boost light 360 may also protrude axially from the outer first focus ring 340 or the outer second focus ring 350, or may be flush with the outer first focus ring 340 or the outer second focus ring 350, as desired.

[0053] In some embodiments, the boost light 360 includes an LED or laser light. Conventional LED lights are low-cost because their light-emitting principle differs from that of lasers, making them suitable for use in areas or environments with regulatory requirements for laser product safety standards. Laser lights are compact and have a longer range. At the same power, they can provide superior boost lighting effects.

[0054] In some embodiments, the boost light 360 is a fixed-focus or zoom light. When the boost light 360 is a fixed-focus light, it can be fixedly connected to the support body 310, such as by being threaded onto the rear flange 312. This arrangement is simple to install and low-cost. The boost light 360 is particularly suitable for LED lamps.

[0055] In some embodiments, the boost fill light 360 is a zoom fill light. Referring to Figures 7-10 , the zoom fill light includes a fill light housing 361, a fill light adjustment member 362, a lamp body 363, and a lens 364. The fill light housing 361 is mounted on the support body 310, specifically on the rear flange 312. The lens 364 is mounted on one end of the fill light housing 361, while the lamp body 363 is mounted on the fill light adjustment member 362. The fill light adjustment member 362 is axially slidable on the other end of the fill light housing 361 to adjust the focal length of the lamp body 363. To adjust the zoom fill light, the adjustment member 362 moves axially, changing the distance between the lamp body 363 and the lens 364, achieving zoom adjustment to better suit different usage environments. Specifically, the lamp body 363 is mounted on a base plate 365, which is in turn mounted on the fill light adjustment member 362.

[0056] In some embodiments, the first focus ring 340 or the second focus ring 350, which is associated with the low-light lens, cooperates with the fill light adjustment member 362 to drive the low-light lens and fill light adjustment member 362 to slide axially. For example, if the second lens 330 is a low-light lens, the second focus ring 350, which is associated with it, cooperates with the fill light adjustment member 362 to drive the low-light lens and fill light adjustment member 362 to slide axially. The zoom fill light can then adjust the distance between the lamp body 363 and the lens 364 by rotating the second focus ring 350, similar to the focusing method used for the second lens 330. This arrangement allows the fill light to be used effectively when observing both near and distant objects in low-light mode. This mode is particularly suitable for laser fill lights. Due to their long range and high brightness, laser fill lights have a good focusing effect when the fill light is focused at a long distance. However, when observing nearby objects, overexposure can easily occur, affecting observation. Specifically, the fill light adjustment member 362 is provided with an external thread that engages with the internal thread of the second focus ring 350. When the second focus ring 350 is rotated, the fill light adjustment member 362 is driven to move axially, changing the distance between the lamp body 363 and the lens 364, achieving zoom and simultaneously adjusting the focus of the low-light lens. To ensure that the focusing distance of the zoom fill light matches the observation distance of the lens, it is necessary to control the fill light to illuminate the farthest and closest points of night vision when observing at the farthest or closest points during installation.

[0057] In some implementations, the support body 310 is provided with a fill light position for mounting a boost light 360. This position facilitates installation of the boost light 360 and allows for precise positioning. The specific location of the fill light position on the support body 310 can be determined based on the internal space of the monocular handheld device and is not specifically limited herein.

[0058] In some embodiments, the monocular handheld device further includes a laser ranging module and / or a laser pointing module, and the fill light position is used to detachably mount one of the gain fill light 360, the laser ranging module, and the laser pointing module. Depending on usage needs, the user can selectively install one of the gain fill light 360, the laser ranging module, and the laser pointing module in the fill light position. When a replacement is required for different shooting requirements, the gain fill light 360, the laser ranging module, or the laser pointing module installed in the fill light position can be removed and replaced accordingly. The above arrangement makes the monocular handheld device more diverse in its usage scenarios. The specific structures of the laser ranging module and the laser pointing module can refer to the conventional configuration of components capable of laser ranging and components capable of emitting laser light to provide indication.

[0059] In some embodiments, referring to Figures 1-6, the monocular handheld device provided by the present invention includes a body assembly 100, an eyepiece assembly 200, and an objective lens assembly 300. The objective lens assembly 300 is located at the front end of the body assembly 100 and includes a support body 310, a first lens 320, a second lens 330, a first focus ring 340, and a second focus ring 350. The support body 310 is located on the body assembly 100 and is used to mount the first lens 320, the second lens 330, the first focus ring 340, and the second focus ring 350. The specific structure of the support body 310 is configured according to installation requirements. The first lens 320 and the second lens 330 are each slidably disposed on the support body 310 along their respective optical axes. The first lens 320 and the second lens 330 can each move forward and backward along their respective optical axes, changing the distance between the mirror surfaces of the first lens 320 and the second lens 330 and the detector target surface, thereby achieving focal length adjustment for clear imaging. Specifically, the optical axes of the first lens 320 and the second lens 330 are parallel. The first lens 320 and the second lens 330 can realize multi-light fusion, which includes but is not limited to an infrared lens and a low-light lens, such as a combination of an infrared lens and a starlight night vision lens. The first focus ring 340 and the second focus ring 350 are respectively rotatably arranged on the support body 310 and are restricted from axial movement by the support body 310, that is, the first focus ring 340 and the second focus ring 350 can both rotate relative to the support body 310, but cannot move axially. The first focus ring 340 is threadedly connected to the first lens 320, and the rotation of the first focus ring 340 is converted into linear movement of the first lens 320 through threaded cooperation to achieve focal length adjustment. The second focus ring 350 is threadedly connected to the second lens 330, and the rotation of the second focus ring 350 is converted into linear movement of the second lens 330 through threaded cooperation to achieve focal length adjustment. The first lens 320 and the second lens 330 can be focused separately. Compared with the synchronous focusing of the two, for different situations of the first lens 320 and the second lens 330, due to the difference in the imaging principles of the two lenses, simultaneous focusing cannot achieve simultaneous clarity of the two lenses. Therefore, in the field of multi-light fusion, independent focusing is more applicable. In addition, the rotation axis of the first focusing ring 340 and the second focusing ring 350 are coaxial. It should be noted that the rotation axis of the first focusing ring 340 refers to the rotation axis of its rotation relative to the support body 310, and the corresponding rotation axis of the second focusing ring 350 refers to the rotation axis of its rotation relative to the support body 310. The rotation axes of the first focusing ring 340 and the second focusing ring 350 are coaxially arranged to facilitate the layout of the two.

[0060] In the monocular handheld device provided by the present invention, the first lens 320 and the second lens 330 are respectively threadedly connected to the first focus ring 340 and the second focus ring 350, and the axial movement of the first focus ring 340 and the second focus ring 350 on the support body 310 is limited. By screwing the first focus ring 340 and the second focus ring 350, the first lens 320 and the second lens 330 can be driven to move forward and backward, changing the distance between the mirror surface of the first lens 320 and the second lens 330 and the detector target surface to achieve clear imaging. In other words, the monocular handheld device can achieve independent focal length adjustment of a single lens. The rotation axes of the first focus ring 340 and the second focus ring 350 are coaxial, the structure is simple and compact, and it is easy for the user to operate, so as to achieve rapid focusing of the first lens 320 and the second lens 330, enhance the detection, focusing, and observation capabilities of the monocular handheld device, and improve the user experience. The objective lens assembly 300 is compact in structure, highly integrated, and highly modular, making it easy to upgrade the product in the future. The threaded fitting has high adjustment precision, easy assembly, and a simple and compact structure.

[0061] In some embodiments, referring to Figures 11 and 12 , a first focus ring 340 is mounted over the first lens 320 and the second lens 330. The outer wall of the first lens 320 is provided with a first external thread 321, and the inner wall of the first focus ring 340 is provided with a first internal thread 341 that mates with the first external thread 321. The first focus ring 340 is annular in structure, with the first lens 320 and the second lens 330 positioned within the ring, making it easy to operate the first focus ring 340. The first external thread 321 on the first lens 320 and the first internal thread 341 on the first focus ring 340 provide a simple structure, easy assembly, and reliable transmission. Furthermore, the size of the first focus ring 340 is significantly larger than the outer diameter of a single lens, providing a larger grip area and a more comfortable grip when adjusting focus. It is understood that the thread length of the first external thread 321 on the first lens 320 is adjusted based on the thread pitch and the focusing range, that is, the travel of the first lens 320; typically, a short length is sufficient. In other embodiments, a ring groove may be provided on the first lens 320 and an external thread may be provided in the ring groove. At least a portion of the first focusing ring 340 may be inserted into the ring groove and provided with an internal thread, thereby achieving threaded engagement.

[0062] In some embodiments, referring to FIG. 13 , a second focus ring 350 is sleeved over the first lens 320 and the second lens 330. The outer wall of the second lens 330 is provided with a second external thread 331, and the inner wall of the second focus ring 350 is provided with a second internal thread that mates with the second external thread 331. The mating of the second focus ring 350 and the second lens 330 can be similar to the mating of the first focus ring 340 and the first lens 320 described above, and will not be further described here.

[0063] In some embodiments, referring to Figures 14-16 , a first focus ring 340 is sleeved over the first lens 320 and the second lens 330. A first groove 322 is defined on one of the outer wall of the first lens 320 and the inner wall of the first focus ring 340, while a first protrusion 342 engages with the first groove 322. This embodiment differs from the threaded engagement between the first focus ring 340 and the first lens 320 described above. In this embodiment, the first groove 322 is defined on one of the mating surfaces of the first focus ring 340 and the first lens 320, while the first protrusion 342 is defined on the other. It will be appreciated that the first lens 320 is capable of axial movement, while its rotation about its own axis is limited. This allows the engagement of the first groove 322 and the first protrusion 342 to convert rotation of the first focus ring 340 into axial movement of the first lens 320. Consequently, when the first focus ring 340 rotates, the first groove 322 and the first protrusion 342 engage to drive axial movement of the first lens 320. By combining the first groove 322 with the first protrusion 342, the first focus ring 340 and the first lens 320 can be modified with a small portion of the outer shell structure, facilitating processing. Specifically, the first groove 322 is provided on the outer circumference of the first lens 320, and the first protrusion 342 is provided on the inner wall of the first focus ring 340. The first groove 322 extends in a spiral shape. When the first focus ring 340 rotates, its axial displacement is restricted, and the first protrusion 342 moves in a specific plane perpendicular to the axial direction. When the first protrusion 342 moves within the first groove 322, it drives the first lens 320 back and forth, thereby achieving focusing.

[0064] In some embodiments, the second focus ring 350 is mounted over the first lens 320 and the second lens 330. A second groove is defined on one of the outer wall of the second lens 330 and the inner wall of the second focus ring 350, 350, while a second protrusion mates with the second groove. The coordination between the second focus ring 350 and the second lens 330 can be similar to the coordination between the first focus ring 340 and the first lens 320 described above and will not be further described here.

[0065] In some embodiments, a first boss 323 is provided on the outer wall of the first lens 320. The outer circumference of the first boss 323 is coaxial with the inner wall of the first focus ring 340, and the first groove 322 is provided on the outer circumference of the first boss 323. By providing the outer circumference of the first boss 323 coaxial with the inner circumference of the first focus ring 340, and the first lens 320 being eccentric relative to the first focus ring 340, the axes of the first boss 323 and the first lens 320 are not colinear. Therefore, the outer circumference of the first boss 323 cooperates with the inner circumference of the first focus ring 340 to limit the rotation of the first lens 320. Specifically, the outer circumference of the first boss 323 cooperates with the inner circumference of the first focus ring 340 to restrict the first lens 320 from rotating about its own axis, forcing it to reciprocate along the central axis. As described above, the first boss 323 provides circumferential limitation while facilitating the provision of the first groove 322, resulting in a simple structure and reliable transmission.

[0066] In some embodiments, a second boss is provided on the outer wall of the second lens 330. The outer periphery of the second boss is coaxial with the inner wall of the second focus ring 350, and a second slide groove is provided on the outer periphery of the second boss. The specific configuration and function of the second boss are similar to those of the first boss 323 and will not be further described here.

[0067] In some embodiments, the outer circumference of the first boss 323 further comprises an axially extending first relief groove 342. One end of the first relief groove 342 communicates with the first slide groove 322, and the other end extends to the edge of the first boss 323, allowing the first protrusion 342 to pass through the first relief groove 342 and into the first slide groove 322. By providing the first relief groove 342, when the first lens 320 and the first focus ring 340 are installed, i.e., when the two are axially moved relative to each other for assembly, the first protrusion 342 enters the first relief groove 342 from one end of the first relief groove 342 and moves axially along the first relief groove 342 until it enters the first slide groove 322. This allows the first focus ring 340 and the first lens 320 to rotate relative to each other, driving the first lens 320 to move axially. This configuration results in a simple structure and facilitates assembly. In other embodiments, the first protrusion 342 can also be set as a retractable protrusion, such as being axially slidable on the inner wall of the first focusing ring 340, and an elastic member is set between the first protrusion 342 and the inner wall of the first focusing ring 340. During assembly, the first protrusion 342 retracts inward, and when assembled so that the first protrusion 342 is opposite to the first slide groove 322, the first protrusion 342 extends outward under the action of the elastic member to cooperate with the first slide groove 322.

[0068] Furthermore, the outer circumference of the second boss is further provided with a second axially extending relief groove. One end of the second relief groove is connected to the second chute, and the other end extends to the edge of the second boss, so that the second protrusion can be inserted into the second chute through the second relief groove. The specific cooperation between the second protrusion and the second chute is similar to the cooperation between the first protrusion and the first chute 322 described above, and will not be repeated here.

[0069] In some embodiments, the first boss 323 has a clearance fit with the first focus ring 340, and the second boss has a clearance fit with the second focus ring 350. This clearance fit reduces friction between the first boss 323 and the first focus ring 340 during relative movement, as well as friction between the second boss and the second focus ring 350 during relative movement, facilitating focus adjustment while reducing wear caused by friction.

[0070] In some implementations, the first and second focus rings 340 and 350 are sequentially axially sleeved around the outer periphery of the support body 310, and both the first and second focus rings 340 and 350 are coaxially disposed with the eyepiece assembly 200. This arrangement facilitates the placement of the first and second focus rings 340 and 350 within the body assembly 100. Furthermore, their coaxial placement with the eyepiece assembly 200 and sequential axial placement facilitate user operation, such as enabling both to be rotated from the same side of the monocular handheld device. Specifically, the spacing between the first and second focus rings 340 and 350 is no greater than a predetermined spacing. Their close proximity facilitates quick user manipulation, further enhancing operational convenience.

[0071] In some embodiments, the outer surfaces of the first and second focus rings 340 and 350 are each provided with non-slip soft rubber pads. The non-slip soft pads increase friction when the knobs are turned, allowing for a clear focusing feel even when wearing gloves, further enhancing the user experience. The non-slip soft pads can be made of materials such as silicone or rubber.

[0072] In some embodiments, referring to Figures 5 and 6, the support body 310 includes a front flange 311, an intermediate member 313, and a rear flange 312, which are sequentially arranged along the axial direction. The front and rear ends of the intermediate member 313 are respectively used to rotatably connect the first focus ring 340 and the second focus ring 350. The first focus ring 340 is sandwiched between the front flange 311 and the intermediate member 313 to form an axial limit for the first focus ring 340, and the second focus ring 350 is sandwiched between the rear flange 312 and the intermediate member 313 to form an axial limit for the second focus ring 350. It can be understood that the first focus ring 340 and the second focus ring 350 are respectively used to be rotatably connected to the front and rear ends of the intermediate member 313, which means that the first focus ring 340 and the second focus ring 350 are respectively mounted on the front and rear ends of the intermediate member 313 and can rotate relative to the intermediate member 313. The first focusing ring 340 cannot move axially under the axial limitation of the front flange 311 and the middle piece 313, but can rotate around the axial direction. The second focusing ring 350 cannot move axially under the axial limitation of the rear flange 312 and the middle piece 313, but can rotate around the axial direction.

[0073] With the support body 310 configured as described above, the first and second focus rings 340, 350 are rotatably mounted on the support body 310. The first focus ring 340 is sandwiched between the front flange 311 and the intermediate member 313, forming an axial stop to prevent axial movement. The second focus ring 350 is sandwiched between the rear flange 312 and the intermediate member 313, forming an axial stop to prevent axial movement. The front and rear ends of the intermediate member 313 are respectively configured to rotatably connect the first and second focus rings 340, 350, separating the first and second focus rings 340, 350 from each other, preventing interference during the focusing process. By rotating the first and second focus rings 340, 350, respectively, the first and second lenses 320, 330 of the monocular handheld device can be moved forward and backward, changing the distance between the mirror surfaces of the first and second lenses 320, 330 and the detector target surface to achieve clear imaging. This means that the monocular handheld device can achieve independent focal length adjustment of each lens. Enhance the discovery, focusing, and observation capabilities of monocular handheld devices and improve user experience.

[0074] In some embodiments, the first lens 320 and the second lens 330 are both mounted on a rear flange 312, which is mounted on the body assembly 100. The front flange 311 and the rear flange 312 are respectively connected to the ends of the middle piece 313. The first focus ring 340 is sandwiched between the front flange 311 and the middle piece 313, and the second focus ring 350 is sandwiched between the rear flange 312 and the middle piece 313. The rear flange 312 can be detachably connected to the body assembly 100, such as with screws, to provide support and facilitate assembly and disassembly. The front flange 311 and the rear flange 312 can also be detachably connected to the middle piece 313, such as with screws. The connection between the front flange 311 and the middle piece 313 sandwiches the first focus ring 340 between the front flange 311 and the middle piece 313, creating an axial restraint to prevent axial movement. This axial restraint should not affect the rotation of the first focus ring 340. Similarly, by connecting the rear flange 312 and the middle piece 313, the second focus ring 350 is clamped between the rear flange 312 and the middle piece 313, forming an axial limit to prevent it from moving axially. Of course, this axial limit should not affect the rotation of the second focus ring 350. In addition, the middle piece 313 can separate the first focus ring 340 from the second focus ring 350, so that the focusing processes do not interfere with each other. The first lens 320 and the second lens 330 are installed on the same structural member to avoid the optical axis being non-parallel due to installation and debugging, thereby improving the dual-light fusion effect of the product. In other embodiments, the support body 310 can also adopt a shell, and mounting grooves corresponding to the first focus ring 340 and the second focus ring 350 are provided on the shell, and the first focus ring 340 and the second focus ring 350 are respectively rotatably installed in the mounting grooves.

[0075] In some embodiments, the end surface of the front flange 311 facing the middle piece 313 aligns with one end of the edge of the first lens 320 and the second lens 330; the end surface of the rear flange 312 facing the middle piece 313 aligns with the other end of the edge of the first lens 320 and the second lens 330. Therefore, when the first lens 320 is axially moved by turning the first focus ring 340, further axial movement in the corresponding direction is restricted when the lens 320 moves forward or backward until it abuts the front flange 311 or the rear flange 312. Similarly, when the second lens 330 is axially moved by turning the second focus ring 350, further axial movement in the corresponding direction is restricted when the lens 330 moves forward or backward until it abuts the front flange 311 or the rear flange 312. As described above, the front flange 311 and the rear flange 312 serve as limiters for the axial movement of the first lens 320 and the second lens 330, controlling the travel of the first lens 320 and the second lens 330 and improving the safety of the device. The front flange 311 and the rear flange 312 integrate multiple functions, further simplifying the structure. In other embodiments, the movement stroke limit can also be achieved by the thread length of the first lens 320 and the second lens 330.

[0076] In some embodiments, the rear flange 312 is provided with a first mounting position and a second mounting position corresponding to the first lens 320 and the second lens 330, respectively. A clearance portion is provided on the sidewall of the first mounting position at a position corresponding to the first focus ring 340 to facilitate threaded engagement between the first focus ring 340 and the first lens 320. Correspondingly, a clearance portion is also provided on the sidewall of the second mounting position at a position corresponding to the second focus ring 350 to facilitate threaded engagement between the second focus ring 350 and the second lens 330.

[0077] In some embodiments, the support body 310 is further provided with a boost light 360. This further expands user usage scenarios. When the support body 310 includes a front flange 311, a rear flange 312, and a middle piece 313, the boost light 360 is located at the end of the rear flange 312 where the first lens 320 and the second lens 330 are located.

[0078] In some embodiments, as shown in Figures 5 and 6 , a flexible protective ring 390 is provided at the end of the support body 310 away from the body assembly 100. Specifically, the flexible protective ring 390 is provided at the front end of the objective lens assembly 300 to protect the entire device from being accidentally dropped. The flexible protective ring 390 can be made of materials such as plastic and silicone.

[0079] In some embodiments, referring to Figures 1 and 17 , a body assembly 100 includes a bracket 120 and a housing 110 positioned over the bracket 120. The bracket 120 is connected to a support body 310, and the circuit board of the monocular handheld device is positioned within the bracket 120. By providing the bracket 120, the circuit board is positioned within the bracket 120. During assembly, the bracket 120 is connected to the support body 310, and then the housing 110 is positioned over the bracket 120. If the support body 310 includes a front flange 311, a rear flange 312, and an intermediate member 313, the bracket 120 is connected to the rear flange 312. Compared to positioning the circuit board within the housing 110, providing the bracket 120 as a separate component from the housing 110 and positioning the circuit board within the bracket 120 results in a simpler and more compact internal structure, facilitates software debugging, and simplifies subsequent maintenance. Specifically, the bracket 120 and the supporting body 310 , as well as the housing 110 and the bracket 120 , may be connected in a detachable manner, such as by bolts, which facilitates assembly and disassembly and facilitates subsequent maintenance.

[0080] In some embodiments, referring to Figures 1 and 2, a battery compartment 140 and a heat dissipation component 130 are provided on opposite sides of the outer peripheral surface of the body assembly 100. Specifically, the heat dissipation component 130 is provided on the left side of the body assembly 100. For most right-handed users, when holding the device with their right hand, they can avoid the heat dissipation area, reduce the strange feeling caused by the product heating, and increase the comfort of holding. The heat dissipation component 130 includes but is not limited to a heat sink for dissipating heat from the main chip. Accordingly, a battery compartment 140 is provided on the right side of the body assembly 100. Specifically, the battery compartment 140 is used to removably install a battery, that is, the monocular handheld device supports battery replacement to increase battery life.

[0081] Specifically, the heat dissipation component 130 is integrated with an external Type C interface for charging and data transmission. A universal 1 / 4 interface 150 can be set at the center of gravity of the bottom of the shell 110 to facilitate later expansion, such as supporting use with a tripod or a grip. The body assembly 100 is provided with a power button 160 and / or a photo button 170. Specifically, the upper part of the body assembly 100 can be provided with a rotary encoder assembly 180, a power button 160 and a photo button 170, which are comfortable to operate and ergonomic. The overall structure has a regular shape and is convenient for long-term single-handed holding.

[0082] In some embodiments, at least the left side portion of the body assembly 100 is made of lightweight plastic material, and skin-friendly soft rubber material is provided in the gripping area, specifically the upper and lower parts of the body assembly 100, to reduce the weight of the entire device.

[0083] In some embodiments, the first lens 320 is an infrared lens, and the second lens 330 is a low-light lens; alternatively, the first lens 320 is a low-light lens, and the second lens 330 is an infrared lens. The low-light lens may specifically be a starlight night vision lens. Furthermore, as shown in FIG4 , the support body 310 is provided with an infrared detection position 370 for mounting an infrared detector, and / or a low-light detection position 380 for mounting a low-light detector. The infrared detector and the low-light detector can provide infrared detection and low-light detection functions. When the support body 310 includes a front flange 311, a rear flange 312, and an intermediate member 313, the infrared detection position 370 and / or the low-light detection position 380 may be located on the rear flange 312. Specifically, the first lens 320 and the second lens 330 may be located at one end of the rear flange 312, and the infrared detection position 370 and / or the low-light detection position 380 may be located at the other end of the rear flange 312.

[0084] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0085] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A monocular handheld device, characterized in that: include: A fuselage assembly (100); An eyepiece assembly (200) is arranged at the rear end of the body assembly (100); The objective lens assembly (300) is arranged at the front end of the body assembly (100), and comprises a supporting body (310), a first lens (320), a second lens (330) and a gain fill light (360), wherein the supporting body (310) is arranged on the body assembly (100), the first lens (320), the second lens (330) and the gain fill light (360) are all arranged on the supporting body (310), and the optical axes of the first lens (320) and the second lens (330) are parallel; wherein the first lens (320) is an infrared lens and the second lens (330) is a low illumination lens; or the first lens (320) is a low illumination lens and the second lens (330) is an infrared lens.

2. The monocular handheld device according to claim 1, characterized in that: The low illumination lens is a starlight night vision lens or a low light level night vision lens.

3. The monocular handheld device according to claim 1, characterized in that: The first lens (320) and the second lens (330) are respectively slidably arranged on the supporting body (310) along their respective optical axis directions.

4. The monocular handheld device according to claim 3, characterized in that: The invention also comprises a first focus ring (340) and a second focus ring (350) which are sequentially arranged along the axial direction. The first focus ring (340) and the second focus ring (350) are respectively rotatably arranged on the outer periphery of the supporting body (310). The first focus ring (340) is used to drive the first lens (320) to move along the optical axis, and the second focus ring (350) is used to drive the second lens (330) to move along the optical axis.

5. The monocular handheld device according to claim 4, characterized in that: The first focus ring (340) or the second focus ring (350) located on the outside protrudes from the first lens (320), the second lens (330) and the gain fill light (360) in the axial direction.

6. The monocular handheld device according to claim 4, characterized in that: The gain fill light (360) is a fixed-focus fill light or a zoom fill light.

7. The monocular handheld device according to claim 6, characterized in that: The zoom fill light comprises a fill light housing (361), a fill light adjustment member (362), a lamp body (363) and a lens (364); the lens (364) is arranged at one end of the fill light housing (361); the lamp body (363) is arranged at the fill light adjustment member (362); the fill light adjustment member (362) is slidably arranged at the other end of the fill light housing (361) along the axial direction to adjust the focal length of the lamp body (363).

8. The monocular handheld device according to claim 7, characterized in that: The first focus ring (340) or the second focus ring (350) matched with the low-light lens cooperates with the fill-light adjustment member (362) and is used to drive the low-light lens and the fill-light adjustment member (362) to slide axially.

9. The monocular handheld device according to claim 4, characterized in that: The first focusing ring (340) is threadedly connected to the first lens (320) so that the first focusing ring (340) can drive the first lens (320) to move forward and backward when the first focusing ring (340) rotates around the axis; the second focusing ring (350) is threadedly connected to the second lens (330) so that the second focusing ring (350) can drive the second lens (330) to move forward and backward when the second focusing ring (350) rotates around the axis.

10. The monocular handheld device according to claim 4, characterized in that: The first focus ring (340) is sleeved outside the first lens (320) and the second lens (330), and one of the outer wall of the first lens (320) and the inner wall of the first focus ring (340) is provided with a first slide groove (322), and the other is provided with a first protrusion (342) matched with the first slide groove (322), so that when the first focus ring (340) rotates around the axis, the first protrusion (342) moves along the first slide groove (322) and drives the first lens (320) to move forward and backward; And / or, the second focusing ring (350) is sleeved outside the first lens (320) and the second lens (330), and one of the outer wall of the second lens (330) and the inner wall of the second focusing ring (350) is provided with a second sliding groove, and the other is provided with a second protrusion that cooperates with the second sliding groove, so that when the second focusing ring (350) rotates axially, the second protrusion moves along the second sliding groove and drives the second lens (330) to move forward and backward.

11. The monocular handheld device according to any one of claims 1 to 10, characterized in that: The gain fill light (360) comprises an LED fill light or a laser fill light.

12. The monocular handheld device according to any one of claims 1 to 10, characterized in that: The support body (310) is provided with an infrared detection position (370) for installing an infrared detector, and / or a low illumination detection position (380) for installing a low illumination detector, and / or a fill light position for installing the gain fill light (360).

13. The monocular handheld device according to claim 12, characterized in that: It also includes a laser distance measuring module and / or a laser indication module, and the fill light position is used to detachably install one of the gain fill light (360), the laser distance measuring module and the laser indication module.

14. The monocular handheld device according to any one of claims 1 to 10, characterized in that: A battery compartment (140) and a heat dissipation component (130) are respectively provided on two opposite sides of the outer peripheral surface of the fuselage assembly (100); The body assembly (100) is provided with a power on / off key (160) and / or a camera key (170).

15. The monocular handheld device according to any one of claims 1 to 10, characterized in that: The supporting body (310) comprises a front flange (311), a middle piece (313) and a rear flange (312) which are sequentially arranged along the axial direction; the front and rear ends of the middle piece (313) are respectively used to rotatably connect the first focus ring (340) and the second focus ring (350); and the first focus ring (340) is clamped between the front flange (311) and the middle piece (313) to form an axial limit for the first focus ring (340); and the second focus ring (350) is clamped between the rear flange (312) and the middle piece (313) to form an axial limit for the second focus ring (350).

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