Handheld binocular telescope

Abstract

A handheld binocular telescope, comprising: a first barrel (10) and a second barrel (20) arranged side by side, wherein a first optical imaging system is mounted in the first barrel (10), a second optical imaging system is mounted in the second barrel (20), and focusing parameters of the first optical imaging system and the second optical imaging system are different; and a handheld assembly (30) connected between the first barrel (10) and the second barrel (20), wherein the handheld assembly (30) comprises a focusing assembly (40), and the focusing assembly (40) is configured to independently adjust the focal lengths of the first optical imaging system and the second optical imaging system.

Description

Binocular handheld binoculars Technical Field

[0001] This disclosure relates to the field of optical imaging equipment technology, and in particular to a binocular handheld telescope. Background Technology

[0002] In binocular handheld binoculars, when both lenses are identical optical lenses, a single focusing wheel is typically used to achieve simultaneous focusing of both lenses. Summary of the Invention

[0003] In one embodiment of this disclosure, a binocular handheld telescope is provided, comprising: a first lens tube and a second lens tube, the first lens tube and the second lens tube being arranged side by side, the first lens tube housing a first optical imaging system, the second lens tube housing a second optical imaging system, the first optical imaging system and the second optical imaging system having different focusing parameters; and a handheld assembly connected between the first lens tube and the second lens tube, wherein the handheld assembly includes a focusing assembly configured to independently adjust the focal lengths of the first optical imaging system and the second optical imaging system.

[0004] In one embodiment, the binocular handheld telescope further includes: a first transmission mechanism connected to the first optical imaging system, wherein the focusing component is configured to adjust the focal length of the first optical imaging system via the first transmission mechanism; and a second transmission mechanism connected to the second optical imaging system, wherein the focusing component is configured to adjust the focal length of the second optical imaging system via the second transmission mechanism.

[0005] In one embodiment, the focusing assembly includes a first focusing roller configured to selectively connect one of the first transmission mechanism and the second transmission mechanism to adjust the focal length of the first optical imaging system and the second optical imaging system, respectively.

[0006] In one embodiment, the first focusing roller is axially mounted on the focusing shaft, and the first focusing roller is configured to synchronously drive the focusing shaft to rotate; wherein the focusing shaft is configured to selectively connect to one of the first transmission mechanism and the second transmission mechanism.

[0007] In one embodiment, the handheld assembly further includes: a shift switch having a first position connecting the focusing shaft to the first transmission mechanism and a second position connecting the focusing shaft to the second transmission mechanism.

[0008] In one embodiment, the handheld assembly further includes: a first shift switch configured to establish or disconnect the connection between the focusing shaft and the first transmission mechanism; and a second shift switch configured to establish or disconnect the connection between the focusing shaft and the second transmission mechanism.

[0009] In one embodiment, the focusing shaft includes a first focusing shaft connected to the first transmission mechanism and a second focusing shaft connected to the second transmission mechanism, the first focusing shaft and the second focusing shaft being coaxially spaced apart; the first focusing roller is configured to be movable along the axial direction of the focusing shaft, the first focusing roller having a first focusing position configured to engage with the first focusing shaft to synchronously drive the first focusing shaft to rotate, and a second focusing position configured to engage with the second focusing shaft to synchronously drive the second focusing shaft to rotate.

[0010] In one embodiment, the focusing assembly includes a first focusing roller and a second focusing roller; the first focusing roller is configured to adjust the focal length of the first optical imaging system via the first transmission mechanism, and the second focusing roller is configured to adjust the focal length of the second optical imaging system via the second transmission mechanism.

[0011] In one embodiment, the binocular handheld telescope further includes: a first focusing shaft connected to the first transmission mechanism and a second focusing shaft connected to the second transmission mechanism, wherein the first focusing shaft and the second focusing shaft are coaxially spaced apart; the first focusing roller is configured to engage with the first focusing shaft to synchronously drive the first focusing shaft to rotate, and the second focusing roller is configured to engage with the second focusing shaft to synchronously drive the second focusing shaft to rotate.

[0012] In one embodiment, the binocular handheld telescope further includes: a supplementary lighting component configured to supplement light for the first optical imaging system or the second optical imaging system; and a supplementary lighting focusing roller mounted on the handheld component, configured to adjust the focusing parameters of the supplementary lighting component. Attached Figure Description

[0013] The following figures are for illustrative purposes only and do not limit the scope of this disclosure.

[0014] Figures 1A and 1B are schematic diagrams of the structure of a first embodiment of a binocular handheld telescope according to the present disclosure.

[0015] Figures 2A and 2B are schematic diagrams of a second embodiment of a binocular handheld telescope according to an embodiment of the present disclosure.

[0016] Figure 3 is a schematic diagram of a third embodiment of a binocular handheld telescope according to the present disclosure. Detailed Implementation

[0017] To provide a clearer understanding of the features, objectives, and effects of this disclosure, specific embodiments of this disclosure will now be described with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

[0018] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to this disclosure and does not represent their actual structure as a product. Furthermore, to facilitate understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled.

[0020] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0021] In this article, terms such as "first" and "second" are used only to distinguish elements from each other, and not to indicate their importance, order, or prerequisites for each other's existence.

[0022] In this document, terms such as "equal" and "same" are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use. Unless otherwise stated, numerical ranges in this document include not only their two endpoints and the entire range within those two endpoints, but also any subranges contained therein.

[0023] In binocular handheld binoculars, when both lenses are identical optical lenses, a single focusing wheel is typically used to achieve simultaneous focusing of both lenses. However, when the two lenses in a binocular handheld binocular have different focusing parameters, such as in a multi-light binocular thermal imaging device that includes one visible light lens and one infrared lens, the different focal lengths or different focal length adjustment ranges prevent simultaneous focusing of both lenses. Therefore, a focusing device is usually only set up for a single lens, resulting in suboptimal imaging performance.

[0024] The embodiments of this disclosure provide a binocular handheld telescope that can independently adjust the focal length of multiple optical imaging systems with different focusing parameters through a focusing assembly.

[0025] The exemplary embodiments will now be described more fully with reference to the accompanying drawings.

[0026] First Embodiment

[0027] As shown in Figures 1A and 1B, one embodiment of this disclosure provides a binocular handheld telescope, including: a first lens tube 10 and a second lens tube 20, the first lens tube 10 and the second lens tube 20 being arranged side by side, wherein a first optical imaging system is installed in the first lens tube 10 and a second optical imaging system is installed in the second lens tube 20, the focusing parameters of the first optical imaging system and the second optical imaging system are different; and a handheld assembly 30, the handheld assembly 30 being connected between the first lens tube 10 and the second lens tube 20, wherein the handheld assembly 30 includes a focusing assembly 40, the focusing assembly 40 being configured to independently adjust the focal length of the first optical imaging system and the second optical imaging system.

[0028] As shown in Figures 1A and 1B, the telescope in this example adopts a common dual-tube structure, with the first tube 10 and the second tube 20 arranged side by side. The first optical imaging system may, for example, include a first objective lens assembly 11 mounted at a first end of the first tube 10 and a first eyepiece assembly 12 mounted at a second end of the first tube 10. The second optical imaging system may, for example, include a second objective lens assembly 21 mounted at a first end of the second tube 20 and a second eyepiece assembly 22 mounted at a second end of the second tube 20. The first objective lens assembly 11 and the second objective lens assembly 21 are respectively located at the distal ends of the first tube 10 and the second tube 20 (i.e., the first ends away from the operator's observation side), and the first eyepiece assembly 12 and the second eyepiece assembly 22 are respectively located at the proximal ends of the first tube 10 and the second tube 20 (i.e., the second ends located at the operator's observation side). A handheld assembly 30 connects the first tube 10 and the second tube 20 into a single unit and provides a handhold for the operator. In addition to providing connection and handheld functions, the handheld component 30 is also used to set up an operation panel, such as an operation panel including buttons 33. In embodiments of this disclosure, the handheld component 30 is disposed adjacent to the eyepiece component for easy operation.

[0029] In embodiments of this disclosure, the handheld assembly 30 includes a focusing assembly 40 for adjusting the focal length of the objective lens assemblies. The focusing assembly 40 may be implemented in the form of focusing rollers. The number of focusing rollers may be one or two, which is less than or equal to the number of objective lens assemblies. Regardless of whether the number of focusing rollers corresponds to the number of objective lens assemblies, the focusing rollers adjust the focal length of the objective lens assemblies in a one-to-one manner. That is, one focusing roller adjusts the focal length of only one objective lens assembly at a time.

[0030] When there is one focusing assembly 40 (e.g., a focusing roller), one focusing roller can be used to independently adjust the focal length of two objective lens assemblies. When there are two focusing assemblies 40 (e.g., focusing rollers), two focusing rollers can be used to adjust the focal length of two objective lens assemblies respectively. In embodiments of this disclosure, focal length adjustment of multiple optical imaging systems with different focusing parameters can be achieved by a single focusing assembly, or focusing of two optical imaging systems can be achieved separately by dual focusing assemblies. In other words, in embodiments of this disclosure, focal length adjustment of multiple optical imaging systems with different focusing parameters can be achieved by focusing assemblies with a number less than or equal to the number of lenses, so that optical imaging systems in different lens barrels can be focused independently.

[0031] In this example, the focusing parameters of the first optical imaging system and the second optical imaging system are different. These focusing parameters may include, but are not limited to, the light-sensing wavelength range, focal length position, and focal length adjustment range of the objective lens assembly. Specifically, for example, the first objective lens assembly 11 is an infrared lens, and the second objective lens assembly 21 is a visible light lens.

[0032] For optical lenses with different wavelength ranges, it is not possible to adjust the focal length simultaneously. Therefore, it is necessary to adjust the focal length of each optical lens separately.

[0033] In embodiments of this disclosure, the binocular handheld telescope further includes: a first transmission mechanism 41 connected to a first objective lens assembly 11, and a focusing assembly 40 configured to adjust the focal length of the first objective lens assembly 11 via the first transmission mechanism 41; and a second transmission mechanism 42 connected to a second objective lens assembly 21, and the focusing assembly 40 configured to adjust the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0034] The focusing assembly 40 is disposed within the handheld assembly 30, which is located near the proximal ends of the first lens barrel 10 and the second lens barrel 20, while the objective lens assembly is disposed at the distal ends of the first lens barrel 10 and the second lens barrel 20. Therefore, the binocular handheld telescope of this embodiment further includes a transmission mechanism connecting the focusing assembly 40 and the objective lens assembly. Based on the principle of separately focusing the objective lens assemblies, the transmission mechanism in this embodiment corresponds one-to-one with the objective lens assembly. Specifically, the binocular handheld telescope includes a first transmission mechanism 41 connected to the first objective lens assembly 11 and a second transmission mechanism 42 connected to the second objective lens assembly 21. The focusing assembly 40 adjusts the focal length of the first objective lens assembly 11 via the first transmission mechanism 41 and adjusts the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0035] In this example, the focusing assembly 40 includes a first focusing roller 401 configured to selectively connect to one of the first transmission mechanism 41 and the second transmission mechanism 42 to adjust the focal length of the first objective lens assembly 11 and the second objective lens assembly 21, respectively.

[0036] In other words, the first focusing roller 401 can only be connected to one of the first transmission mechanism 41 and the second transmission mechanism 42 at any given time, so that the focal length of only one of the first objective lens assembly 11 and the second objective lens assembly 21 can be adjusted at any given time.

[0037] Specifically, the first focusing roller 401 is axially mounted on the focusing shaft 44, and the first focusing roller 401 is configured to synchronously drive the focusing shaft 44 to rotate; wherein the focusing shaft 44 is configured to selectively connect to one of the first transmission mechanism 41 and the second transmission mechanism 42.

[0038] In this example, the first focusing roller 401 drives the first transmission mechanism 41 or the second transmission mechanism 42 via the focusing shaft 44. The first focusing roller 401 rotates synchronously with the focusing shaft 44, rather than rotating around the focusing shaft 44. For example, the first focusing roller 401 is fixed to the focusing shaft 44, and the first focusing roller 401 and the focusing shaft 44 are coaxially arranged.

[0039] In a specific example, as shown in Figure 1A, the handheld assembly 30 includes a shift switch. In other words, the handheld assembly 30 includes a first shift switch 31, which has a first position connecting the focusing shaft 44 to the first transmission mechanism 41 and a second position connecting the focusing shaft 44 to the second transmission mechanism 42.

[0040] The first shift switch 31 serves as a connecting bridge between the focusing shaft 44 and the two transmission mechanisms 41 and 42, enabling selective connection between the focusing shaft 44 and either the first transmission mechanism 41 or the second transmission mechanism 42. Specifically, the first shift switch 31 may have two positions. When the first shift switch 31 is in the first position, the focusing shaft 44 and the first transmission mechanism 41 are connected via the first shift switch 31. When the first focusing roller 401 rotates in response to the operator's external force, it synchronously drives the focusing shaft 44 to rotate, thereby adjusting the focal length of the first objective lens assembly 11 via the first transmission mechanism 41. When the first shift switch 31 is in the second position, the focusing shaft 44 and the second transmission mechanism 42 are connected via the first shift switch 31. When the first focusing roller 401 rotates in response to the operator's external force, it synchronously drives the focusing shaft 44 to rotate, thereby adjusting the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0041] Optionally, in a specific example, as shown in FIG1B, the handheld assembly 30 includes two shift switches. In other words, the handheld assembly 30 includes: a first shift switch 31 configured to establish or disconnect the connection between the focusing shaft 44 and the first transmission mechanism 41; and a second shift switch 32 configured to establish or disconnect the connection between the focusing shaft 44 and the second transmission mechanism 42.

[0042] In this example, the handheld assembly 30 includes two shift switches, each adjusting the connection between the focusing shaft 44 and one of the transmission mechanisms. Specifically, the first shift switch 31 is located between the focusing shaft 44 and the first transmission mechanism 41, and has a first position for establishing the connection between the focusing shaft 44 and the first transmission mechanism 41, and a second position for disengaging the connection between the focusing shaft 44 and the first transmission mechanism 41. Similarly, the second shift switch 32 is located between the focusing shaft 44 and the second transmission mechanism 42, and has a first position for establishing the connection between the focusing shaft 44 and the second transmission mechanism 42, and a second position for disengaging the connection between the focusing shaft 44 and the second transmission mechanism 42.

[0043] The first shift switch 31 and the second shift switch 32 are in opposite positions to allow for selective connection between the focusing shaft 44 and the first transmission mechanism 41 and the second transmission mechanism 42. For example, when the first shift switch 31 is in the first position to establish the connection between the focusing shaft 44 and the first transmission mechanism 41, the second shift switch 32 is in the second position to disconnect the connection between the focusing shaft 44 and the second transmission mechanism 42. Alternatively, when the first shift switch 31 is in the second position to disconnect the connection between the focusing shaft 44 and the first transmission mechanism 41, the second shift switch 32 is in the first position to establish the connection between the focusing shaft 44 and the second transmission mechanism 42.

[0044] This disclosure provides a binocular handheld telescope that allows for focal length adjustment of multiple optical imaging systems with different focusing parameters located within different lens barrels via a focusing assembly. For optical imaging systems with different focusing parameters, the focal length is adjusted separately for each optical lens. Based on the principle of focusing the objective lens assembly separately, the transmission mechanism in this embodiment has the same number as the objective lens assembly, and the transmission mechanism corresponds one-to-one with the objective lens assembly. Specifically, the binocular handheld telescope includes a first transmission mechanism 41 connected to the first objective lens assembly 11 and a second transmission mechanism 42 connected to the second objective lens assembly 21. The first focusing roller 401 is configured to adjust the focal length of the first objective lens assembly 11 via the first transmission mechanism 41 and the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0045] Second Embodiment

[0046] As shown in Figures 2A and 2B, one embodiment of this disclosure provides a binocular handheld telescope, including: a first lens tube 10 and a second lens tube 20, the first lens tube 10 and the second lens tube 20 being arranged side by side, wherein a first optical imaging system is installed in the first lens tube 10 and a second optical imaging system is installed in the second lens tube 20, the focusing parameters of the first optical imaging system and the second optical imaging system are different; and a handheld assembly 30, the handheld assembly 30 being connected between the first lens tube 10 and the second lens tube 20, wherein the handheld assembly 30 includes a focusing assembly 40, the focusing assembly 40 being configured to independently adjust the focal length of the first optical imaging system and the second optical imaging system.

[0047] The first optical imaging system may, for example, include a first objective lens assembly 11 mounted at a first end of the first lens barrel 10 and a first eyepiece assembly 12 mounted at a second end of the first lens barrel 10. The second optical imaging system may, for example, include a second objective lens assembly 21 mounted at a first end of the second lens barrel 20 and a second eyepiece assembly 22 mounted at a second end of the second lens barrel 20. The first objective lens assembly 11 and the second objective lens assembly 21 are respectively disposed at the distal ends of the first lens barrel 10 and the second lens barrel 20 (i.e., the first ends away from the operator's observation side), and the first eyepiece assembly 12 and the second eyepiece assembly 22 are respectively disposed at the proximal ends of the first lens barrel 10 and the second lens barrel 20 (i.e., the second ends located on the operator's observation side). A handheld assembly 30 connects the first lens barrel 10 and the second lens barrel 20 into one unit and provides a handheld part for the operator. In addition to providing connection and handheld functions, the handheld assembly 30 is also used to set up an operation panel, such as an operation panel including buttons 33. In the embodiments of this disclosure, the handheld assembly 30 is disposed adjacent to the eyepiece assembly to facilitate operation by the operator.

[0048] In this example, the focusing parameters of the first optical imaging system and the second optical imaging system are different. These focusing parameters may include, but are not limited to, the light-sensing wavelength range, focal length position, and focal length adjustment range of the objective lens assembly. Specifically, for example, the first objective lens assembly 11 is an infrared lens, and the second objective lens assembly 21 is a visible light lens.

[0049] Specifically, the binocular handheld telescope further includes: a first transmission mechanism 41, which is connected to the first objective lens assembly 11, and the focusing assembly 40 is configured to adjust the focal length of the first objective lens assembly 11 via the first transmission mechanism 41; and a second transmission mechanism 42, which is connected to the second objective lens assembly 21, and the focusing assembly 40 is configured to adjust the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0050] In this example, the focusing assembly 40 includes a first focusing roller 401 configured to selectively connect to one of the first transmission mechanism 41 and the second transmission mechanism 42 to adjust the focal length of the first objective lens assembly 11 and the second objective lens assembly 21, respectively.

[0051] Specifically, the first focusing roller 401 is axially mounted on the focusing shaft 44, and the first focusing roller 401 is configured to synchronously drive the focusing shaft 44 to rotate; the focusing shaft 44 is configured to selectively connect to one of the first transmission mechanism 41 and the second transmission mechanism 42.

[0052] The focusing shaft 44 includes a first focusing shaft 441 connected to the first transmission mechanism 41 and a second focusing shaft 442 connected to the second transmission mechanism 42. The first focusing shaft 441 and the second focusing shaft 442 are coaxially spaced apart.

[0053] The first focusing roller 401 is configured to be movable along the axial direction of the focusing shaft 44. The first focusing roller 401 has a first focusing position as shown in FIG2B, which is configured to engage with the first focusing shaft 441 to synchronously drive the first focusing shaft 441 to rotate, and a second focusing position as shown in FIG2A, which is configured to engage with the second focusing shaft 442 to synchronously drive the second focusing shaft 442 to rotate.

[0054] The focusing shaft 44 includes a first focusing shaft 441 and a second focusing shaft 442 spaced apart, arranged along the same axial direction. A first focusing roller 401 is configured to be movable along the axial direction of the focusing shaft 44, rather than along the physical focusing shaft 44. For example, the first focusing roller 401 may be confined within an adjustment frame. In the radial direction, the first focusing roller 401 is positioned within the adjustment frame and has no degree of freedom of movement, while in the axial direction, the first focusing roller 401 has a degree of freedom of movement. The first focusing shaft 441 and the second focusing shaft 442 are located at opposite ends of the axial direction. When the first focusing roller 401 moves along the axial direction of the focusing shaft 44, it can engage with the first focusing shaft 441 and the second focusing shaft 442 at opposite ends of the axial direction of the adjustment frame, respectively, to adjust the focal length of the first objective lens assembly 11 and the second objective lens assembly 21 via the first transmission mechanism 41 and the second transmission mechanism 42, respectively.

[0055] This disclosure provides a binocular handheld telescope that allows for focal length adjustment of multiple optical imaging systems with different focusing parameters located within different lens barrels via a focusing assembly. For optical imaging systems with different focusing parameters, the focal length is adjusted separately for each optical lens. Based on the principle of focusing the objective lens assembly separately, the transmission mechanism in this embodiment has the same number as the objective lens assembly, and the transmission mechanism corresponds one-to-one with the objective lens assembly. Specifically, the binocular handheld telescope includes a first transmission mechanism 41 connected to the first objective lens assembly 11 and a second transmission mechanism 42 connected to the second objective lens assembly 21. The focusing assembly 40 is configured to adjust the focal length of the first objective lens assembly 11 via the first transmission mechanism 41 and the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0056] The first focusing roller 401 is configured to be movable along the axial direction of the focusing shaft 44. The focusing shaft 44 includes a first focusing shaft 441 connected to the first transmission mechanism 41 and a second focusing shaft 442 connected to the second transmission mechanism 42. The first focusing shaft 441 and the second focusing shaft 442 are coaxially spaced apart. The first focusing roller 401 is movable along the axial direction of the focusing shaft 44. The first focusing roller 401 has a first focusing position that engages with the first focusing shaft 441 to synchronously drive the first focusing shaft 441 to rotate, and a second focusing position that engages with the second focusing shaft 442 to synchronously drive the second focusing shaft 442 to rotate, thereby adjusting the focal length of the first objective lens assembly 11 and the second objective lens assembly 21 via the first transmission mechanism 41 and the second transmission mechanism 42, respectively.

[0057] Third Embodiment

[0058] As shown in Figure 3, one embodiment of this disclosure provides a binocular handheld telescope, including: a first lens tube 10 and a second lens tube 20, the first lens tube 10 and the second lens tube 20 being arranged side by side, wherein a first optical imaging system is installed in the first lens tube 10 and a second optical imaging system is installed in the second lens tube 20, and the focusing parameters of the first optical imaging system and the second optical imaging system are different; and a handheld assembly 30, the handheld assembly 30 being connected between the first lens tube 10 and the second lens tube 20, wherein the handheld assembly 30 includes a focusing assembly 40, the focusing assembly 40 being configured to independently adjust the focal length of the first optical imaging system and the second optical imaging system.

[0059] The first optical imaging system may, for example, include a first objective lens assembly 11 mounted at a first end of the first lens barrel 10 and a first eyepiece assembly 12 mounted at a second end of the first lens barrel 10. The second optical imaging system may, for example, include a second objective lens assembly 21 mounted at a first end of the second lens barrel 20 and a second eyepiece assembly 22 mounted at a second end of the second lens barrel 20. The first objective lens assembly 11 and the second objective lens assembly 21 are respectively disposed at the distal ends of the first lens barrel 10 and the second lens barrel 20 (i.e., the first ends away from the operator's observation side), and the first eyepiece assembly 12 and the second eyepiece assembly 22 are respectively disposed at the proximal ends of the first lens barrel 10 and the second lens barrel 20 (i.e., the second ends located on the operator's observation side). A handheld assembly 30 connects the first lens barrel 10 and the second lens barrel 20 into one unit and provides a handheld part for the operator. In addition to providing connection and handheld functions, the handheld assembly 30 is also used to set up an operation panel, such as an operation panel including buttons 33. In the embodiments of this disclosure, the handheld assembly 30 is disposed adjacent to the eyepiece assembly to facilitate operation by the operator.

[0060] In this example, the focusing parameters of the first optical imaging system and the second optical imaging system are different. These focusing parameters may include, but are not limited to, the light-sensing wavelength range, focal length position, and focal length adjustment range of the objective lens assembly. Specifically, for example, the first objective lens assembly 11 is an infrared lens, and the second objective lens assembly 21 is a visible light lens.

[0061] Specifically, the binocular handheld telescope further includes: a first transmission mechanism 41, which is connected to the first objective lens assembly 11, and the focusing assembly 40 is configured to adjust the focal length of the first objective lens assembly 11 via the first transmission mechanism 41; and a second transmission mechanism 42, which is connected to the second objective lens assembly 21, and the focusing assembly 40 is configured to adjust the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0062] In this example, the focusing assembly 40 includes a first focusing roller 401 and a second focusing roller 402.

[0063] The first focusing roller 401 is configured to adjust the focal length of the first objective lens assembly 11 via the first transmission mechanism 41, and the second focusing roller 402 is configured to adjust the focal length of the second objective lens assembly 21 via the second transmission mechanism 42.

[0064] Specifically, the binocular handheld telescope also includes: a first focusing shaft 441 connected to the first transmission mechanism 41 and a second focusing shaft 442 connected to the second transmission mechanism 42, wherein the first focusing shaft 441 and the second focusing shaft 442 are coaxially spaced apart.

[0065] The first focusing roller 401 is configured to engage with the first focusing shaft 441 to synchronously drive the first focusing shaft 441 to rotate, and the second focusing roller 402 is configured to engage with the second focusing shaft 442 to synchronously drive the second focusing shaft 442 to rotate.

[0066] In this example, the number of focusing rollers is the same as the number of objective lens assemblies, and there is a one-to-one correspondence between the focusing rollers and the objective lens assemblies. The focus adjustment of the first focusing roller 401 on the first objective lens assembly 11 and the focus adjustment of the second focusing roller 402 on the second objective lens assembly 21 are independent of each other. The first focusing shaft 441 and the second focusing shaft 442 are spaced apart, and the first transmission mechanism 41 and the second transmission mechanism 42 are also independent of each other. Therefore, the focus adjustment of the first objective lens assembly 11 and the second objective lens assembly 21 can be performed simultaneously, but the optical imaging systems located in different lens barrels are adjusted independently of each other.

[0067] Fourth embodiment

[0068] One embodiment of this disclosure provides a binocular handheld telescope, including: a first lens tube 10 and a second lens tube 20, the first lens tube 10 and the second lens tube 20 being arranged side by side; an objective lens assembly, the objective lens assembly including a first objective lens assembly 11 mounted at a first end of the first lens tube 10 and a second objective lens assembly 21 mounted at a first end of the second lens tube 20; an eyepiece assembly, the eyepiece assembly including a first eyepiece assembly 12 mounted at a second end of the first lens tube 10 and a second eyepiece assembly 22 mounted at a second end of the second lens tube 20; and a supplementary lighting assembly, the supplementary lighting assembly being equipped with... The first objective lens assembly 11 or the second objective lens assembly 21 is configured to supplement light; and a handheld assembly 30 is connected between the first lens barrel 10 and the second lens barrel 20 and is adjacent to the first eyepiece assembly 12 and the second eyepiece assembly 22. The handheld assembly 30 includes a focusing assembly 40 for adjusting the focal length of the objective lens assembly. The focusing assembly 40 includes focusing rollers, and the number of focusing rollers is less than or equal to the number of objective lens assemblies. The handheld assembly 30 also includes a supplementary light focusing roller, which is configured to adjust the focusing parameters of the supplementary light assembly.

[0069] In this example, both the fill light assembly and the fill light focusing wheel are mounted on the handheld assembly 30. The fill light focusing wheel can directly adjust the fill light assembly, and the adjustment target can be the brightness of the fill light assembly, the focus position, etc. Furthermore, the number of fill light focusing wheels is the same as the number of fill light assemblies, and there is a one-to-one correspondence between the fill light focusing wheels and the fill light assemblies. The number of focusing wheels is less than or equal to the number of objective lens assemblies.

[0070] The above descriptions are merely some embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A binocular handheld telescope, comprising: A first lens barrel (10) and a second lens barrel (20) are arranged side by side. A first optical imaging system is installed in the first lens barrel (10), and a second optical imaging system is installed in the second lens barrel (20). The focusing parameters of the first optical imaging system and the second optical imaging system are different. as well as A handheld assembly (30) is connected between the first lens barrel (10) and the second lens barrel (20). The handheld component (30) includes a focusing component (40) configured to independently adjust the focal lengths of the first optical imaging system and the second optical imaging system.

2. The binocular handheld telescope according to claim 1 further includes: A first transmission mechanism (41) is connected to the first optical imaging system, and the focusing assembly (40) is configured to adjust the focal length of the first optical imaging system via the first transmission mechanism (41). as well as A second transmission mechanism (42) is connected to the second optical imaging system, and the focusing assembly (40) is configured to adjust the focal length of the second optical imaging system via the second transmission mechanism (42).

3. The binocular handheld telescope according to claim 2, wherein, The focusing assembly (40) includes a first focusing roller (401) configured to selectively connect to one of the first transmission mechanism (41) and the second transmission mechanism (42) to adjust the focal length of the first optical imaging system and the second optical imaging system, respectively.

4. The binocular handheld telescope according to claim 3, wherein, The first focusing roller (401) is axially mounted on the focusing shaft (44), and the first focusing roller (401) is configured to synchronously drive the focusing shaft (44) to rotate; The focusing shaft (44) is configured to selectively connect to one of the first transmission mechanism (41) and the second transmission mechanism (42).

5. The binocular handheld telescope according to claim 4, wherein, The handheld component (30) also includes: A shift switch (31) having a first position connecting the focusing shaft (44) to the first transmission mechanism (41) and a second position connecting the focusing shaft (44) to the second transmission mechanism (42).

6. The binocular handheld telescope according to claim 4, wherein, The handheld component (30) also includes: A first shift switch (31) is configured to establish or disconnect the connection between the focusing shaft (44) and the first transmission mechanism (41); and A second shift switch (32) is configured to establish or disconnect the connection between the focusing shaft (44) and the second transmission mechanism (42).

7. The binocular handheld telescope according to claim 4, wherein, The focusing shaft (44) includes a first focusing shaft (441) connected to the first transmission mechanism (41) and a second focusing shaft (442) connected to the second transmission mechanism (42), wherein the first focusing shaft (441) and the second focusing shaft (442) are coaxially spaced apart; and The first focusing roller (401) is configured to be movable along the axial direction of the focusing shaft (44). The first focusing roller (401) has a first focusing position configured to engage with the first focusing shaft (441) to synchronously drive the first focusing shaft (441) to rotate, and a second focusing position configured to engage with the second focusing shaft (442) to synchronously drive the second focusing shaft (442) to rotate.

8. The binocular handheld telescope according to claim 2, wherein, The focusing assembly (40) includes a first focusing roller (401) and a second focusing roller (402); The first focusing roller (401) is configured to adjust the focal length of the first optical imaging system via the first transmission mechanism (41), and the second focusing roller (402) is configured to adjust the focal length of the second optical imaging system via the second transmission mechanism (42).

9. The binocular handheld telescope according to claim 8, further comprising: A first focusing shaft (441) connected to the first transmission mechanism (41) and a second focusing shaft (442) connected to the second transmission mechanism (42), wherein the first focusing shaft (441) and the second focusing shaft (442) are coaxially spaced apart; The first focusing roller (401) is configured to engage with the first focusing shaft (441) to synchronously drive the first focusing shaft (441) to rotate, and the second focusing roller (402) is configured to engage with the second focusing shaft (442) to synchronously drive the second focusing shaft (442) to rotate.

10. The binocular handheld telescope according to claim 1, further comprising: A supplementary lighting component, configured to supplement light for either the first optical imaging system or the second optical imaging system; as well as A fill light focusing roller is mounted on the handheld component (30) and is configured to adjust the focusing parameters of the fill light component.

Images