Detachable double-cylinder distance measuring system

Abstract

The invention discloses a detachable double-tube distance measuring system, which comprises a first single-tube telescope, a second single-tube telescope and a connecting piece or a lens group, and is characterized in that the first single-tube telescope and the second single-tube telescope can be independently used as single-tube telescopes; the first single-tube telescope and the second single-tube telescope can form one of a binocular telescope and a long-tube telescope; wherein when the first single-tube telescope and the second single-tube telescope form a binocular telescope, the first single-tube telescope and the second single-tube telescope are relatively and fixedly connected through the connecting piece; the second single-tube telescope is provided with a coaxial laser transmitting and receiving module. According to the detachable double-tube distance measuring system provided by the invention, the functions of telescoping, distance measuring and microscopy can be realized, the system can be used in different occasions, and a lens group structure is added, so that two single-tube telescopes can be combined into a microscope to observe tiny objects.

Description

Technical Field

[0001] The invention belongs to the field of rangefinders, and in particular relates to a detachable binocular rangefinder system. Background Art

[0002] A microscope telescope is a telescope that can realize both telescopic and microscopic functions. It can be simply understood as a telescope with a microscopic function. It is generally a single-tube or binocular structure, and its appearance is similar to that of a traditional telescope, except that a microscope module that can realize the microscopic function is added inside. The patent with application number CN211043798U discloses "a common eyepiece microscope telescope, which uses a common eyepiece for microscopy and telephoto, and the microscope group is provided with a microscope transparent cover, an LED lighting lamp, a microscope objective lens group, a Behan prism group and an eyepiece group from the object side to the human eye side in sequence". It can be seen that the application describes a common microscope telescope, but its structure is simple and cannot realize the function of ranging. When realizing the telescopic function, binoculars cannot be used for viewing, which affects the viewing experience. For this reason, the present invention proposes a detachable binocular ranging system. Summary of the invention

[0003] The object of the present invention is to provide a detachable binocular distance measuring system to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution, a detachable binocular ranging system, comprising:

[0005] A first monocular telescope, a second monocular telescope, and a connecting piece or a lens group, wherein the first monocular telescope and the second monocular telescope can be used as monocular telescopes alone, and the first monocular telescope and the second monocular telescope can form one of binoculars or a long-tube microscope;

[0006] Among them, when the first monocular telescope and the second monocular telescope form binoculars, the first monocular telescope and the second monocular telescope are relatively fixedly connected through the connecting piece; the second monocular telescope is provided with a coaxial laser transmitting and receiving module.

[0007] Optionally, a first objective lens, a first prism and a first eyepiece are coaxially arranged in sequence along a natural incident path in the first monocular telescope, and the first monocular telescope forms an image using natural light incident from a lens port.

[0008] Optionally, a second objective lens, a second prism, a second eyepiece and a laser transceiver module are coaxially arranged in the second monocular telescope;

[0009] Natural light is incident through the second objective lens and enters the second prism, and is refracted multiple times in the second prism before being emitted to the second eyepiece to be observed by human eyes;

[0010] The laser transceiver module emits near-infrared light for ranging, which is reflected by the second prism and then enters the second objective lens for collimated emission. The echo laser generated by the emitted near-infrared light in nature enters the second objective lens and is then reflected by the second prism to be collected by the laser transceiver module.

[0011] Optionally, the laser transceiver module also includes a microprocessor, an LCD display screen is arranged between the second prism and the second eyepiece, and the LCD display screen is electrically connected to the microprocessor. After collecting the echo laser, the laser transceiver module calculates the ranging data of the echo laser by means of the microprocessor and displays it through the LCD screen.

[0012] Optionally, an OLED projection module is further provided in the second monocular telescope, and projection light of an image displayed by the OLED projection module is emitted to the second eyepiece via the second prism to be observed by human eyes.

[0013] Optionally, the laser transceiver module includes a laser transmitter, a receiver, a first lens for focusing light, a second lens with a hole in the center, and a third lens with an inner ring area and an outer ring area;

[0014] The laser emitter emits near-infrared light for distance measurement, which is focused by the first lens, enters the inner ring area of ​​the third lens through the central hole of the second lens, is collimated, enters the second prism, and is reflected by the second prism before being emitted through the second objective lens;

[0015] The echo laser is incident along the natural light incident path, enters and passes through the second objective lens, is reflected by the second prism to the outer ring area of ​​the third lens for focusing, and the focused echo laser is emitted to the mirror surface of the second lens and reflected to the receiver.

[0016] Optionally, the laser transceiver module further includes a fourth lens, which is coaxially arranged with the receiver, and the echo laser reflected by the mirror surface of the second lens is focused by the fourth lens to form a light spot which is received by the receiver.

[0017] Optionally, the first monocular telescope, the lens group and the second monocular telescope are coaxially arranged in sequence to form a long-tube microscope, wherein the lens group is composed of a double-cemented lens, a concave lens and a meniscus lens.

[0018] Optionally, the connecting member includes a rotating seat A, a rotating seat B and a detachable shaft rod, the rotating seat A is fixed on the first monocular telescope, the rotating seat B is fixed on the second monocular telescope, and the rotating seat A and the rotating seat B are hinged via the detachable shaft rod.

[0019] Optionally, both the rotating seat A and the rotating seat B are provided with an axial hole for the detachable shaft to pass through.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the detachable binocular ranging system proposed by the present invention can realize the functions of telephoto, ranging and microscopy, and can be used in different occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the interior of a first monocular telescope of the present invention;

[0023] Figure 3 is a schematic diagram of the interior of a second monocular telescope of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the long tube microscope of the present invention;

[0025] Figure 5 Schematic diagram of the lens assembly of the present invention.

[0026] In the figure: 1. first monocular telescope; 11. first objective lens; 12. first prism; 13. first eyepiece; 2. second monocular telescope; 21. second objective lens; 22. second prism; 23. second eyepiece; 24. third lens; 25. second lens; 26. fourth lens; 27. first lens; 28. fifth lens; 29. ​​LCD screen; 210. OLED screen; 211. receiver; 212. laser transmitter; 3. connector; 4. lens group; 41. double cemented lens; 42. concave lens; 43. meniscus lens. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] Example

[0029] See also Figures 1 to 5, is an embodiment of the present invention, which provides a technical solution:

[0030] A detachable binocular ranging system, comprising:

[0031] A first monocular telescope 1, a second monocular telescope 2, and a connecting piece 3 or a lens group 4, wherein the first monocular telescope 1 and the second monocular telescope 2 can be used as monocular telescopes alone, and the first monocular telescope 1 and the second monocular telescope 2 can form one of binoculars or a long-tube microscope;

[0032] When the first monocular telescope 1 and the second monocular telescope 2 form a binocular telescope, the first monocular telescope 1 and the second monocular telescope 2 are relatively fixedly connected via the connecting member 3, and the second monocular telescope 2 is provided with a coaxial laser transmitting and receiving module.

[0033] Specifically, the detachable binocular ranging system disclosed in the embodiment of the present invention includes two usage states and corresponding structures. One is to form a binoculars by a first monocular telescope 1, a second monocular telescope 2 and a connecting member 3 (see Figure 1 ), realize telescopic and ranging functions, and secondly, through the first monocular telescope 1, the second monocular telescope 2 and the lens group 4, a long-tube microscope is formed to realize the microscopic function (refer to Figure 4 ).

[0034] Each monocular telescope can be used separately, and the internal structure of the first monocular telescope 1 and the internal structure of the second monocular telescope 2 can be interchangeable.

[0035] In an optional embodiment, a first objective lens 11, a first prism 12 and a first eyepiece 13 are coaxially arranged in sequence along a natural incident path in the first monocular telescope 1, and the first monocular telescope 1 forms an image using natural light incident from a lens port.

[0036] For details, please refer to Figure 2 In this embodiment, the first monocular telescope 1 is along the natural light incident path, which can be from left to right in the figure. The first objective lens 11 can be composed of a plurality of lenses glued together, the first prism 12 includes a compensation lens, a half-pentagonal prism and a Schmidt roof prism, and the first eyepiece 13 is composed of a glued lens and a single lens. Among them, the first prism 12 can be replaced by other structural lens combinations, because the first monocular telescope 1 does not need to perform the ranging function, so it is not necessary to use a Schmidt roof prism or other lens combinations to realize the design of coaxial and multiplexed axes.

[0037] When binoculars are used to achieve telephoto function, the objective lens group forms a reduced, inverted real image of the object. After being deflected by the prism group, the eyepiece forms a magnified, upright virtual image for human eyes to see.

[0038] In an optional embodiment, a second objective lens 21, a second prism 22, a second eyepiece 23 and a laser transceiver module are coaxially arranged in the second monocular telescope 2;

[0039] Natural light is incident through the second objective lens 21 and enters the second prism 22, and is refracted multiple times in the second prism 22 before being emitted to the second eyepiece 23 to be observed by human eyes;

[0040] The laser transceiver module emits near-infrared light for ranging, which is reflected by the second prism 22 and then enters the second objective lens 21 for collimated emission. The echo laser generated by the emitted near-infrared light in nature enters the second objective lens 21 and is then reflected by the second prism 22 to be collected by the laser transceiver module.

[0041] Specifically, the second prism 22 includes a compensation lens, a half-pentagonal prism and a Schmidt roof prism, the second objective lens 21 can be composed of a cemented lens, and the second eyepiece 23 can be composed of a cemented lens and a single lens.

[0042] The laser transceiver module has the function of transmitting the ranging laser and receiving the echo laser generated by the ranging laser touching the object in nature.

[0043] The second prism 22 can make two optical paths, 'second objective lens 21 - second prism 22 - laser transceiver module' and 'second objective lens 21 - second prism 22 - second eyepiece 23', partially coaxial, thereby reducing space and achieving miniaturization of the entire device.

[0044] In an optional embodiment, the laser transceiver module also includes a microprocessor, and an LCD screen 29 is arranged between the second prism 22 and the second eyepiece 23. The LCD screen 29 is electrically connected to the microprocessor. After collecting the echo laser, the laser transceiver module calculates the ranging data of the echo laser by means of the microprocessor and displays it through the LCD screen 29.

[0045] Specifically, the LCD screen 29 is used to display the crosshairs and distance measurement information. The microprocessor performs algorithm calculations on the echo laser to obtain the distance measurement information and display it on the LCD screen 29. The user can see the distance measurement data in the real scene pictures seen by the two lens barrels at the same time, realizing the picture superposition projection.

[0046] In an optional embodiment, an OLED projection module is further provided in the second monocular telescope 2 , and the projection light of the image displayed by the OLED projection module is emitted to the second eyepiece 23 via the second prism 22 to be observed by human eyes.

[0047] For details, please refer to Figure 3 The OLED projection module may include an OLED screen 210 and a fifth lens 28 aligned with the OLED screen 210. The OLED screen 210 may project some recommended videos to assist the user in observing or performing other sports operations. The light projected by the OLED screen 210 undergoes multiple refractions inside the second prism 22, and finally emerges at an angle parallel to the horizontal line. Since the internal refraction of the Schmidt roof prism is a prior art, it will not be described in detail here.

[0048] In an optional embodiment, the laser transceiver module includes a laser transmitter 212, a receiver 211, a first lens 27 for focusing light, a second lens 25 with a hole in the center, and a third lens 24 having an inner ring area and an outer ring area;

[0049] The laser emitter 212 emits near-infrared light for distance measurement, which is focused by the first lens 27, enters the inner ring area of ​​the third lens 24 through the central hole of the second lens 25, is collimated, enters the second prism 22, and is reflected by the second prism 22 before being emitted through the second objective lens 21;

[0050] The echo laser is incident along the natural light path, enters and passes through the second objective lens 21, and is reflected by the second prism 22 to the outer ring area of ​​the third lens 24 for focusing. The focused echo laser is emitted to the mirror surface of the second lens 25 and reflected to the receiver 211.

[0051] Specifically, the ranging function of the binoculars is realized by the laser transceiver module of the second monocular telescope 2. The near-infrared light emitted by the laser transmitter 212 is focused by the first lens 27, and then enters the third lens 24 through the central circular hole of the second lens 25 with a central hole to perform the first collimation of the light beam.

[0052] The third lens 24 is a spliced ​​lens, that is, it is composed of a central lens and an outer ring lens. The outer ring area of ​​the third lens 24, that is, the outer ring lens, is used to focus the echo laser, and the inner ring area, that is, the central lens, is used to collimate the near-infrared light emitted by the laser emitter 212. The collimated laser beam passes through the compensation prism in the second prism 22, and then enters the second objective lens 21 for secondary collimation after being reflected by the semi-pentagonal prism, and is emitted as nearly parallel light to hit distant objects.

[0053] After the near-infrared laser hits the object to be measured, diffuse reflection will occur. The diffusely reflected echo laser will be collimated by the second objective lens 21. The collimated light beam is reflected by the second prism 22, and after being focused by the outer ring area of ​​the third lens 24, it is reflected twice by the second lens 25 with a hole in the center.

[0054] In an optional embodiment, the laser transceiver module also includes a fourth lens 26, which is coaxially arranged with the receiver 211. The echo laser reflected by the mirror surface of the second lens 25 is focused by the fourth lens 26 to form a light spot and is received by the receiver 211.

[0055] In an optional embodiment, the first monocular telescope 1 , the lens group 4 , and the second monocular telescope 2 are coaxially arranged in sequence to form a long-tube microscope, wherein the lens group 4 is composed of a double cemented lens 41 , a concave lens 42 , and a meniscus lens 43 .

[0056] Specifically, the lens group 4 is composed of a double cemented lens 41, a concave lens 42 and a meniscus lens 43. The three are assembled and glued together to form a special lens group. The function of this special lens group is to shorten the focal length of the microscope objective lens and correct the aberration of the microscope optical system, thereby improving the observation clarity of the entire telescope.

[0057] Among them, the focal power of the lens group 4 is φ2, the focal power of the second lens 21 is φ3, the distance between the main surface of the first monocular telescope 1 and the main surface of the lens group 4 is d1, the distance between the main surface of the lens group 4 and the main surface of the second objective lens 21 is d2, and the focal length of the second eyepiece 23 is F4. Then, the focal length F1 of the optical system composed of the first monocular telescope 1 and the lens group 4 can be expressed as:

[0058]

[0059] The focal length F3 of the short-focus objective lens of the microscope composed of the first monocular telescope 1, the lens group 4 and the second objective lens 21 is:

[0060]

[0061] Among them, Δ represents the distance between the image and the image focus after the short-focus objective forms an image. The magnification of the long-tube microscope optical system is:

[0062]

[0063] When using a long-tube microscope, the object to be measured is located between one and two focal lengths of the microscope objective lens. The laser emitter 212 emits white light to illuminate the object to be measured, and the short-focus objective lens forms a magnified inverted real image of the object to be measured. The real image is equivalent to the object of the second eyepiece 23, and the real image is located within one focal length of the second eyepiece 23. The second eyepiece 23 forms a magnified virtual image of the real image formed by the short-focus objective lens, which is viewed by the human eye.

[0064] In an optional embodiment, the connecting member includes a rotating seat A, a rotating seat B and a detachable shaft rod, the rotating seat A is fixed on the first monocular telescope, the rotating seat B is fixed on the second monocular telescope, and the rotating seat A and the rotating seat B are hinged via the detachable shaft rod.

[0065] In an optional embodiment, both the rotating seat A and the rotating seat B are provided with an axial hole for the detachable shaft to pass through.

[0066] Specifically, the connecting member 3 connected between the first monocular telescope 1 and the second monocular telescope 2 includes a rotating seat A, a rotating seat B and a detachable shaft rod. The rotating seat A is stably welded and fixed to the first monocular telescope 1 using traditional welding technology. The rotating seat B is stably welded and fixed to the second monocular telescope 2 using traditional welding technology. The rotating seat A and the rotating seat B are hinged by the detachable shaft rod. During actual assembly, the rotating seat A and the rotating seat B are aligned, and then the detachable shaft rod is passed through the rotating seat A and the rotating seat B, and then the passing end of the detachable shaft rod is limited, so that the hinge of the rotating seat A and the rotating seat B can be quickly completed, and the rotational connection between the first monocular telescope 1 and the second monocular telescope 2 can be realized. During subsequent disassembly, it is only necessary to pull out the detachable shaft rod from between the rotating seat A and the rotating seat B, so that the rotating seat A and the rotating seat B can be smoothly disassembled, thereby realizing the rapid disassembly between the first monocular telescope 1 and the second monocular telescope 2.

[0067] After the splitting, the first monocular telescope 1 and the second monocular telescope 2 are axially aligned, and the rotating seat A and the rotating seat B are hinged with a longer detachable shaft rod in the same way as before, so that the first monocular telescope 1 and the second monocular telescope 2 can be smoothly combined into a monocular telescope. The rotating seat A and the rotating seat B are both provided with an axial hole for the detachable shaft rod to pass through, so that the first monocular telescope 1 and the second monocular telescope 2 can be disassembled and assembled. The first monocular telescope 1 and the second monocular telescope 2 can also be axially sleeved by the connecting piece 3 and a lens group 4 is added in the middle to form a monocular telescope to realize the function of a microscope. Since the objective lens of the microscope is a short-focus objective lens, the position of the first objective lens 11 needs to be adjusted, and the distance between the first objective lens 11 and the first prism 12 needs to be shortened to reduce the optical focal length of the first monocular telescope 1 to φ1. The first monocular telescope 1, the lens group 4 and the second objective lens 21 are equivalent to the short-focus objective lens of the microscope.

[0068] The telescopic and ranging functions are realized by a binoculars formed by combining a first monocular telescope 1 and a second monocular telescope 2 through a connecting piece 3. After the first monocular telescope 1 and the second monocular telescope 2 form a binoculars, they can realize telescopic observation like a normal telescope, and at the same time also have a ranging function, which is more suitable for some measurement and military reconnaissance fields, bringing convenience to users.

[0069] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable binocular ranging system, characterized in that: include: A first monocular telescope, a second monocular telescope, and a connecting piece or a lens group, wherein the first monocular telescope and the second monocular telescope can be used as monocular telescopes alone, and the first monocular telescope and the second monocular telescope can form one of binoculars or a long-tube microscope; Among them, when the first monocular telescope and the second monocular telescope form binoculars, the first monocular telescope and the second monocular telescope are relatively fixedly connected through the connecting piece; the second monocular telescope is provided with a coaxial laser transmitting and receiving module.

2. A detachable binocular ranging system according to claim 1, characterized in that: A first objective lens, a first prism and a first eyepiece are coaxially arranged in sequence along a natural incident path in the first monocular telescope, and the first monocular telescope forms an image using natural light incident from a lens port.

3. A detachable binocular ranging system according to claim 1, characterized in that: The second monocular telescope is coaxially provided with a second objective lens, a second prism, a second eyepiece and a laser transceiver module; Natural light is incident through the second objective lens and enters the second prism, and is refracted multiple times in the second prism before being emitted to the second eyepiece to be observed by human eyes; The laser transceiver module emits near-infrared light for ranging, which is reflected by the second prism and then enters the second objective lens for collimated emission. The echo laser generated by the emitted near-infrared light in nature enters the second objective lens and is then reflected by the second prism to be collected by the laser transceiver module.

4. A detachable binocular ranging system according to claim 3, characterized in that: The laser transceiver module also includes a microprocessor. An LCD display screen is arranged between the second prism and the second eyepiece. The LCD display screen is electrically connected to the microprocessor. After collecting the echo laser, the laser transceiver module calculates the ranging data of the echo laser by means of the microprocessor and displays it through the LCD screen.

5. The detachable binocular distance measuring system according to claim 3, characterized in that: An OLED projection module is also provided in the second monocular telescope, and projection light of an image displayed by the OLED projection module is emitted to the second eyepiece via the second prism to be observed by human eyes.

6. According to the detachable binocular distance measuring system of claim 3, the laser transceiver module comprises a laser transmitter, a receiver, a first lens for focusing light, a second lens with a hole in the center, and a third lens with an inner ring area and an outer ring area; The laser emitter emits near-infrared light for distance measurement, which is focused by the first lens, enters the inner ring area of ​​the third lens through the central hole of the second lens, is collimated, enters the second prism, and is reflected by the second prism before being emitted through the second objective lens; The echo laser is incident along the natural light incident path, enters and passes through the second objective lens, is reflected by the second prism to the outer ring area of ​​the third lens for focusing, and the focused echo laser is emitted to the mirror surface of the second lens and reflected to the receiver.

7. According to the detachable binocular ranging system of claim 6, the laser transceiver module also includes a fourth lens, and the fourth lens is coaxially arranged with the receiver, and the echo laser reflected by the mirror surface of the second lens is focused by the fourth lens to form a light spot and received by the receiver.

8. According to the detachable binocular distance measuring system of claim 1, the first monocular telescope, the lens group and the second monocular telescope are coaxially arranged in sequence to form a long-tube microscope, wherein: The lens group consists of a doublet lens, a concave lens and a meniscus lens.

9. The detachable binocular distance measuring system according to claim 1, characterized in that: The connecting member includes a rotating seat A, a rotating seat B and a detachable shaft rod, the rotating seat A is fixed on the first monocular telescope, the rotating seat B is fixed on the second monocular telescope, and the rotating seat A and the rotating seat B are hinged through the detachable shaft rod.

10. The detachable binocular distance measuring system according to claim 9, characterized in that: The rotating seat A and the rotating seat B are both provided with an axial hole for the detachable shaft to pass through.

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