Binocular telescope type range finder
By designing a laser optical path perpendicular to the observation light path and a built-in laser component structure in a binocular rangefinder, the problem of unreasonable placement of the laser emitter is solved, and the instrument is easy to focus and easy to hold, improving the Stability and user experience.
Patent Information
- Application Number
- CN202420551425.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-21
AI Technical Summary
There is an unreasonable laser emitter placement in the design of the binocular rangefinder, which increases optical components and structural components, and increases cost and maintenance difficulties. At the same time, the optical path design is difficult to make full use of space, affecting the stability of observation and measurement. sex.
A binocular telescopic rangefinder including a first lens barrel, a second lens barrel and a range measuring device is designed. The laser emission module and the laser receiving module are arranged through the prism group so that the laser optical path is perpendicular to the observation optical path. The laser assembly is built into the lens barrel to reduce the exposure to the air and facilitates grip and stable use through a hollow structural design.
It realizes the easy focus and easy grasp of the binocular rangefinder, reduces production and maintenance costs, and improves the stability and user experience of observation and measurement.
Smart Images
Figure CN222461683U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of distance measuring devices, in particular to a binoculars type rangefinder. Background Art
[0002] A rangefinder is an instrument that uses laser to accurately measure the distance to a target. When working, the rangefinder emits a very thin beam of laser to the target. The laser beam reflected by the target is received by a photoelectric element, and a timer measures the time from the emission to the reception of the laser beam, thereby calculating the distance from the observer to the target.
[0003] Binoculars rangefinder is a high-end product of rangefinder, invented to have both the observation function of binoculars and the measurement function of rangefinder. Users do not need to carry a pair of binoculars and a rangefinder when they need to apply the scene. Binoculars rangefinder combines the functions of telescope and rangefinder into one, providing users with a more convenient product, which is widely used in: outdoor sports, security and firefighting and many other occasions.
[0004] However, in the development history of binocular rangefinders, there are unreasonable designs. For example, the laser transmitter is placed at the central axis of the binocular rangefinder, which increases the cost by adding optical components and structural parts. The additional set of optical components exposed to the air increases the maintenance workload. Or the optical path design cannot fully avoid the space between the left and right lens barrels, making it difficult for the structural design to achieve a full-enclosed grip to increase the stability of observation and measurement during use. Utility Model Content
[0005] Based on this, it is necessary to propose a binocular telescope type rangefinder which is easy to focus and convenient to hold.
[0006] The utility model provides a binocular telescope type rangefinder, comprising a first lens barrel, a second lens barrel and a rangefinder device located between the first lens barrel and the second lens barrel, wherein an objective lens group, a prism group and an eyepiece group are sequentially arranged in the first lens barrel and the second lens barrel, and the rangefinder device comprises a laser emitting module and a laser receiving module, and the prism group is arranged corresponding to the laser emitting module and the laser receiving module, so that the optical path of the laser emitted from the laser emitting module and the optical path of the laser reaching the laser receiving module are perpendicular to the observation optical path.
[0007] Preferably, the prism group includes a first prism group arranged in the first lens barrel and a second prism group arranged in the second lens barrel, the first prism group includes a first prism and a second prism, the second prism group includes a third prism and a fourth prism, the incident surface of the first prism is perpendicular to the optical path of the laser emitted from the laser emitting module, the exit surface of the second prism is parallel to the optical path of the laser emitted from the laser emitting module, the incident surface of the third prism is parallel to the optical path of the laser reaching the laser receiving module, and the exit surface of the fourth prism is perpendicular to the optical path of the laser reaching the laser receiving module.
[0008] Preferably, the first prism and the fourth prism are half pentaprisms, and the second prism and the third prism are roof prisms.
[0009] Preferably, the first lens barrel includes a first shell, the second lens barrel includes a second shell, the first shell and the second shell form a distance measuring device accommodating chamber at a position close to the eyepiece group, and the distance measuring device is accommodated in the distance measuring device accommodating chamber.
[0010] Preferably, the binoculars-type rangefinder further comprises a connecting member disposed between the first shell and the second shell, the connecting member being close to the objective lens group, and a gap being provided between the connecting member and the rangefinder receiving chamber.
[0011] Preferably, the distance measuring device further comprises a battery, and the battery is accommodated in one end of the distance measuring device accommodation compartment close to the eyepiece assembly.
[0012] Preferably, the binoculars-type rangefinder further comprises a central axis focusing wheel arranged outside the rangefinder receiving compartment.
[0013] Preferably, the binocular-type rangefinder adjusts the parallax of the left and right eyes by adjusting the eyepiece group.
[0014] Preferably, the binoculars-type rangefinder further comprises control buttons arranged on the upper surface of the rangefinder receiving compartment.
[0015] The binocular telescope type rangefinder provided by the utility model comprises a first lens barrel, a second lens barrel and a rangefinder device located between the first lens barrel and the second lens barrel, the first lens barrel and the second lens barrel are sequentially provided with an objective lens group, a prism group and an eyepiece group, the rangefinder device comprises a laser emitting module and a laser receiving module, the prism group is arranged corresponding to the laser emitting module and the laser receiving module, so that the optical path of the laser emitted from the laser emitting module and the optical path of the laser reaching the laser receiving module are perpendicular to the observation optical path. The binocular telescope type rangefinder provided by the utility model is easy to focus and convenient to hold. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of a binocular-type rangefinder provided by an embodiment;
[0018] Figure 2 A schematic diagram of a binocular-type rangefinder provided by an embodiment;
[0019] Figure 3 A cross-sectional view of a binocular-type rangefinder provided for one embodiment; and
[0020] Figure 4 An optical path diagram of a binocular-type rangefinder provided for one embodiment. DETAILED DESCRIPTION
[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0023] like Figure 1-Figure 4As shown, the utility model provides a binocular telescope type rangefinder, comprising a first lens barrel 100, a second lens barrel 200 and a rangefinder 300 located between the first lens barrel 100 and the second lens barrel 200, wherein the first lens barrel 100 and the second lens barrel 200 are sequentially provided with an objective lens group (1A and 1B), a prism group (3A and 3B) and an eyepiece group (4A and 4B), the rangefinder 300 comprises a laser emitting module 5 and a laser receiving module 6, and the prism groups 3A and 3B are respectively arranged corresponding to the laser emitting module 5 and the laser receiving module 6, so that the optical path of the laser emitted from the laser emitting module 5 and the optical path of the laser reaching the laser receiving module 6 are perpendicular to the observation optical path.
[0024] Specifically, the prism group includes a first prism group 3A arranged on the first lens barrel 100 and a second prism group 3B arranged on the second lens barrel 200, the first prism group 3A includes a first prism 31 and a second prism 32, the second prism group 3B includes a third prism 33 and a fourth prism 34, the incident surface of the first prism 31 is perpendicular to the optical path of the laser emitted from the laser emitting module 5, the exit surface of the second prism 32 is parallel to the optical path of the laser emitted from the laser emitting module 5, the incident surface of the third prism 33 is parallel to the optical path of the laser reaching the laser receiving module 6, and the exit surface of the fourth prism 34 is perpendicular to the optical path of the laser reaching the laser receiving module 6.
[0025] Preferably, the first prism 31 and the fourth prism 34 are half pentaprisms, and the second prism 32 and the third prism 33 are roof prisms. By using the "roof prism" and "half pentaprism" commonly used in conventional optical telescopes, plus the special-shaped prism 35 and the prism combination composed of the coating, the production cost can be reduced.
[0026] Preferably, the first lens barrel 100 includes a first shell 101, the second lens barrel 200 includes a second shell 201, the first shell 101 and the second shell 201 surround a distance measuring device storage compartment 301 at a position close to the eyepiece groups 4A and 4B, and the distance measuring device 300 is stored in the distance measuring device storage compartment 301. The laser emission and laser receiving components are built into the left and right lens barrels, which reduces the maintenance amount of the laser emission or laser receiving optical components exposed to the outside air, and the optical path design and structural design of the prism group of the utility model fully avoid the space in the middle part of the left and right lens barrels to achieve the effect of full-coverage grip in the structure, increase user experience, and increase the grip stability during use and the observation and measurement stability.
[0027] Preferably, the binocular telescope rangefinder further comprises a connector 9 disposed between the first housing 101 and the second housing 201, the connector 9 being close to the objective lens group 1, and having a gap between the connector 9 and the rangefinder storage compartment 301. In this way, since the space between the left and right binoculars of the binocular telescope rangefinder body is avoided, the space in the avoided binoculars can make it very convenient to achieve a hollow grip structure effect in terms of structural design, and the hollow grip can be fully wrapped by both hands to hold the left and right lens barrels respectively to achieve a more stable measurement and observation effect when using the machine. In addition, the connector 9 can increase the firmness and stability of the left and right lens barrels.
[0028] The design of the optical prism group of the utility model allows the design of "when the laser emitting tube emits laser" and "when the laser receiving optical path receives and arrives" to be perpendicular to the observation optical path, so as to avoid the space between the left and right binoculars of the binocular-type rangefinder body. The space in the avoided binoculars can make it very convenient to achieve a hollow grip structural effect in the structural design. The hollow grip can fully hold the left and right lens barrels with both hands respectively to achieve a more stable measurement and observation effect when using the machine.
[0029] During the assembly and debugging process of the binocular telescope rangefinder of the utility model, after the structural parts (14A and 14B) for fixing the objective lens 1, the structural parts (15A and 15B) for fixing the field lens 2 and the structural parts (16A and 16B) for fixing the prism group 3 are debugged respectively, the objective lens 1, the field lens 2 and the prism group 3 are fixed, so that the laser emitting module 5 and the laser receiving module 6 can respectively achieve the best measurement capability effect and correct the observation optical paths of the left and right lens barrels.
[0030] By connecting the transmissive liquid crystal 10 to the circuit boards 11 and 12 and installing it in one of the lens barrels between the prism group 3 and the eyepiece 4 and in the focal plane of the eyepiece 4, the effect of being able to observe the target through the eyepiece and directly read the measurement result is achieved.
[0031] By rotating the connecting member 9 as the central axis, the distance between the left and right lens barrels can be adjusted to suit the distance between the eyes of different people.
[0032] Preferably, the distance measuring device further includes a battery 8, which is accommodated in one end of the distance measuring device accommodation compartment 301 close to the eyepiece group 4. In terms of structural design, the battery is directly built into the distance measuring device accommodation compartment 301 at the central axis position, so as to achieve the effect of reducing the volume, so that the left and right lens barrels can be kept within the lens barrel diameter range that is comfortable for human hands to hold.
[0033] Preferably, the binocular-type rangefinder further comprises a central axis focusing wheel 7 disposed outside the rangefinder housing 301. The central axis focusing wheel 7 is used to adjust the clarity of the optical path observation system of the left and right lens barrels when observing targets at different distances. The central axis focusing brackets 17 and 18 cooperate with each other, so that when the central axis focusing wheel 7 is adjusted, the eyepiece groups 4A and 4B move together to achieve the function of adjusting the focal length.
[0034] The structural design adopts a method that can make the binocular eyepiece group 4 move axially synchronously to focus, that is, the clarity of far and near, and can adjust the focal length of one of the monocular eyes separately to achieve the effect of adjusting the diopter difference of the left and right eyes of the human eye. This method of focusing and adjusting the diopter difference is convenient for the debugging and installation of the laser transmitting module 5 and the laser receiving module 6, and after the debugging of the transmitting and receiving optical and laser modules, there is no need to use the objective lens 1 and the field lens 2 to focus, and there is no need to destroy the position of the transmitting and receiving optical and laser modules that have been debugged to the best effect.
[0035] Preferably, the binoculars-type rangefinder further includes a control button 13 disposed on the upper surface of the rangefinder housing. The distance is measured by operating the control button 13, and the measurement result is synchronously displayed in the field of view of the eyepiece 4. The user can measure while observing and read the measurement result directly in the eyepiece, and can adjust the clarity by adjusting the central axis focus and use the diopter wheel 19 to adjust the diopter difference caused by the different vision of the left and right eyes.
[0036] The binocular telescope type rangefinder provided by the utility model comprises a first lens barrel, a second lens barrel and a rangefinder device located between the first lens barrel and the second lens barrel, the first lens barrel and the second lens barrel are sequentially provided with an objective lens group, a prism group and an eyepiece group, the rangefinder device comprises a laser emitting module and a laser receiving module, the prism group is arranged corresponding to the laser emitting module and the laser receiving module, so that the optical path of the laser emitted from the laser emitting module and the optical path of the laser reaching the laser receiving module are perpendicular to the observation optical path. The binocular telescope type rangefinder provided by the utility model is easy to focus and convenient to hold.
[0037] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A binocular telescope type rangefinder, comprising a first lens barrel (100), a second lens barrel (200) and a distance measuring device (300) located between the first lens barrel (100) and the second lens barrel (200), characterized in that: The first lens barrel (100) and the second lens barrel (200) are each provided with an objective lens group (1), a prism group (3) and an eyepiece group (4) in sequence; the distance measuring device comprises a laser emitting module (5) and a laser receiving module (6); the prism group (3) is arranged corresponding to the laser emitting module (5) and the laser receiving module (6), so that the optical path of the laser emitted from the laser emitting module (5) and the optical path of the laser reaching the laser receiving module (6) are perpendicular to the observation optical path.
2. The binoculars type rangefinder according to claim 1, characterized in that: The prism group (3) comprises a first prism group (3A) arranged on the first lens barrel (100) and a second prism group (3B) arranged on the second lens barrel (200); the first prism group (3A) comprises a first prism (31) and a second prism (32); the second prism group (3B) comprises a third prism (33) and a fourth prism (34); the incident surface of the first prism (31) is perpendicular to the optical path of the laser emitted from the laser emission module (5); the exit surface of the second prism (32) is parallel to the optical path of the laser emitted from the laser emission module (5); the incident surface of the third prism (33) is parallel to the optical path of the laser reaching the laser receiving module (6); and the exit surface of the fourth prism (34) is perpendicular to the optical path of the laser reaching the laser receiving module (6).
3. The binoculars type rangefinder according to claim 2, characterized in that: The first prism and the fourth prism are half pentaprisms, and the second prism and the third prism are roof prisms.
4. The binoculars type rangefinder according to claim 1, characterized in that: The first lens barrel (100) comprises a first shell (101), the second lens barrel (200) comprises a second shell (201), the first shell (101) and the second shell (201) enclose a distance measuring device receiving chamber (301) at a position close to the eyepiece group (4), and the distance measuring device (300) is received in the distance measuring device receiving chamber (301).
5. The binoculars type rangefinder according to claim 4, characterized in that: The binoculars-type rangefinder further comprises a connecting member (9) arranged between the first shell (101) and the second shell (201); the connecting member (9) is close to the objective lens group (1); and there is a gap between the connecting member (9) and the distance measuring device accommodating chamber (301).
6. The binoculars type rangefinder according to claim 4, characterized in that: The distance measuring device further comprises a battery (8), and the battery (8) is accommodated in an end of the distance measuring device accommodation compartment (301) close to the eyepiece assembly (4).
7. The binoculars type rangefinder according to claim 4, characterized in that: The binocular-type rangefinder further comprises a central axis focusing wheel (7) arranged outside the rangefinder housing (301).
8. The binoculars type rangefinder according to claim 1, characterized in that: The binocular telescope type rangefinder adjusts the parallax of the left and right eyes by adjusting the eyepiece group (4).
9. The binoculars type rangefinder according to claim 4, characterized in that: The binoculars-type rangefinder further comprises a control button (13) arranged on the upper surface of the rangefinder housing (301).