Binocular ranging telescope

Abstract

A binocular ranging telescope comprises a first lens body and a second lens body, and a first objective lens group, a first laser reflection natural light transmitting mirror, a laser emission module and at least two laser reflectors are arranged on the inner edge of the first lens body; and a second objective lens group, a second laser reflection natural light transmitting mirror, a laser receiving module and at least two laser reflectors are arranged in the second mirror body. Wherein the first laser reflection natural light transmitting mirror and the second laser reflection natural light transmitting mirror are used for reflecting laser beams and allowing natural light to pass through, and laser emitted by the laser emission module is emitted from the first objective lens group after being reflected by the at least two laser reflectors in the first mirror body and the first laser reflection natural light transmitting mirror in sequence; and the laser reflected by the target object passes through the second objective lens group, is reflected by the second laser reflection natural light transmitting mirror and at least two laser reflectors in the second mirror body in sequence, and is received by the laser receiving module.

Description

Technical Field

[0001] The utility model relates to the field of optoelectronic technology, in particular to a binocular distance measuring telescope. Background Art

[0002] The laser emission and receiving optical paths of existing binoculars are mostly mixed in the prism group of the observation optical path. There are too many mirrors for emission and reception through the prism group, which will greatly reduce the efficiency of laser transmission on the one hand, and on the other hand, the overall adjustment of the telescope will be more complicated after the laser optical path and the observation optical path are mixed. There are also telescopes in the prior art that set the laser ranging component in front of the prism group, but their structure is not reasonable. When the optical path remains unchanged, the laser optical path needs to occupy a considerable space in the telescope. Utility Model Content

[0003] In view of this, the utility model provides a binocular ranging telescope capable of solving or optimizing the above-mentioned problems.

[0004] The utility model provides a binocular rangefinder telescope, comprising a first mirror body and a second mirror body, wherein the first mirror body is provided with a first objective lens group, a first laser reflecting natural light transmission mirror, a laser emission module and at least two laser reflection mirrors at the inner edge thereof; the second mirror body is provided with a second objective lens group, a second laser reflecting natural light transmission mirror, a laser receiving module and at least two laser reflection mirrors, wherein the first laser reflecting natural light transmission mirror and the second laser reflecting natural light transmission mirror are used to reflect laser beams and allow natural light to pass through, the laser emitted by the laser emission module is successively reflected by at least two laser reflection mirrors in the first mirror body and the first laser reflecting natural light transmission mirror, then emitted from the first objective lens group and reaches a target object, the laser reflected by the target object passes through the second objective lens group, and is successively reflected by the second laser reflecting natural light transmission mirror and at least two laser reflection mirrors in the second mirror body, then received by the laser receiving module.

[0005] In some embodiments, the first objective lens group and / or the second objective lens group consists of two objective lenses arranged in parallel along the axial direction.

[0006] In some embodiments, there are two laser reflection mirrors in the first mirror body and the second mirror body, and the first mirror body is provided with a first objective lens group, a first laser reflection mirror, a first laser reflecting natural light transmission mirror, a second laser reflection mirror and a laser emission module in sequence along the axial direction; the second mirror body is provided with a second objective lens group, a third laser reflection mirror, a second laser reflecting natural light transmission mirror, a fourth laser reflection mirror and a laser receiving module in sequence along the axial direction.

[0007] In some embodiments, it also includes a central axis connected to the first mirror body and the second mirror body respectively, the first mirror body includes a first lens barrel and a first connecting member that are interconnected and connected, the second mirror body includes a second lens barrel and a second connecting member that are interconnected and connected, and the first connecting member and the second connecting member are respectively rotationally connected to the central axis.

[0008] In some embodiments, the laser emitting module includes a laser emitting tube and a coupling lens disposed adjacent to each other, and the laser receiving module includes a laser receiving tube and a coupling lens disposed adjacent to each other.

[0009] In some embodiments, the laser emitting module and the second laser reflecting mirror are located in the first connecting member, and / or the laser receiving module and the fourth laser reflecting mirror are located in the second connecting member.

[0010] In some embodiments, the first objective lens group, the first laser reflection mirror and the first laser reflection natural light transmission mirror are located in the first lens barrel, and / or the second objective lens group, the second laser reflection mirror and the third laser reflection natural light transmission mirror are located in the first lens barrel.

[0011] In some embodiments, the laser emitting module is respectively arranged opposite to the first laser reflecting mirror and the second laser reflecting mirror, and / or the laser receiving module is respectively arranged opposite to the third laser reflecting mirror and the fourth laser reflecting mirror.

[0012] In some embodiments, the second laser reflecting mirror is disposed opposite to the first laser reflecting natural light transmitting mirror, and / or the fourth laser reflecting mirror is disposed opposite to the second laser reflecting natural light transmitting mirror.

[0013] In some embodiments, the plane where the second laser reflection mirror is located is arranged parallel to the plane where the first laser reflection natural light perspective mirror is located, and / or the plane where the fourth laser reflection mirror is located is arranged parallel to the plane where the second laser reflection natural light projection mirror is located.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the laser light path is separated in front of the prism group, the reflection surface through which the laser light path passes is reduced, and the total power of the laser is higher under the same laser emission module power; in addition, the adjustment of the observation light path can be independent of the laser light path, which greatly simplifies the difficulty of adjustment, and the setting of the laser reflector effectively reduces the space required for the laser light path. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A rear view of a telescope according to an embodiment of the present invention is shown.

[0016] Figure 2 Shows Figure 1The three-dimensional structural schematic diagram of the telescope shown is removed from the first connecting plate and the third connecting part.

[0017] Figure 3 Shows Figure 1 A cross-sectional view of the telescope along line AA is shown.

[0018] Figure 4 Shows Figure 1 Schematic diagram of the laser transmitting optical path and laser receiving optical path of the telescope shown.

[0019] 100. Binocular rangefinder; 10. First lens body; 11. First lens barrel; 111. First objective lens group; 112. First laser reflector; 113. First laser reflecting natural light transmission mirror; 12. First connecting piece; 121. First connecting plate; 122. Second connecting plate; 123. Second laser reflector; 124. Laser emission module; 13. First objective lens group; 14. First eyepiece group; 20. Second lens body; 21. Second lens barrel; 211. Second objective lens group; 212. Third laser reflector; 213. Second laser reflecting natural light transmission mirror; 22. Second connecting piece; 221. Third connecting plate; 222. Fourth connecting plate; 223. Fourth laser reflector; 224. Laser receiving module; 23. Second objective lens group; 24. Second eyepiece group; 30. Central axis. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings exemplarily show one or more embodiments of the present invention so that the understanding of the technical solution disclosed in the present invention is more accurate and thorough. However, it should be understood that the present invention can be implemented in many different forms and is not limited to the embodiments described below.

[0021] Also refer to Figure 1 The binoculars 100 of the first embodiment of the utility model include a first lens body 10 and a second lens body 20. An objective lens group, an eyepiece, and a prism group located between the objective lens group and the eyepiece are respectively arranged in the first lens body 10 and the second lens body 20. Natural light generates an observation optical path through the objective lens group, the eyepiece, and the prism group. In addition, a laser emitting module and a laser receiving module are respectively arranged between the objective lens group and the prism group of the first lens body 10 and the second lens body 20 to form a ranging optical path. Among them, the laser emitting module and the laser ranging module are arranged in front of the prism to prevent the laser from being reflected and received by the prism group, thereby reducing the transmission efficiency. In addition, it is also convenient to adjust the laser ranging optical path and the observation optical path.

[0022] Specifically, Figure 2 and Figure 3As shown, the first mirror body 10 and the second mirror body 20 are arranged at an interval, and the two are respectively connected to a central axis 30 to form the left and right mirror body structure of the binoculars. The first mirror body 10 and the second mirror body 20 can rotate around the central axis 30. In the mechanical structure, the central axis 30 is a fixed part, and the first mirror body 10 and the second mirror body 20 respectively rotate around the central axis to generate a unique focus at a specific focal length. After the laser emission optical path is adjusted in the first mirror body 10, it can coincide with this unique focus at a specific focal length. Similarly, the laser receiving optical path can also coincide with this focus, so that the binoculars can still perform distance measurement when the pupil distance is adjusted.

[0023] Specifically, the first mirror body 10 includes a first lens barrel 11 and a first connecting member 12 connected to each other. The first lens barrel 11 is roughly cylindrical. The second mirror body 20 includes a second lens barrel 21 and a second connecting member 22 connected to each other. The second lens barrel 21 is roughly cylindrical. In this embodiment, the first lens barrel 11 and the second lens barrel 21 have the same structure. The second connecting member 22 and the first connecting member 12 are respectively rotatably connected to the central axis. So that the first mirror body 10 and the second mirror body 20 can rotate around the central axis 30 respectively.

[0024] The first connecting member 12 has the same structure as the second connecting member 22. The first connecting member 12 is roughly prismatic, and has a first connecting plate 121 and a second connecting plate 122 extending tangentially along the side walls of the first lens barrel 11, respectively. The first connecting plate 121 and the second connecting plate 122 are respectively rotatably connected to the central axis 30, and the angle between the two is an acute angle. The first connecting plate 121, the second connecting plate 122 and the first lens barrel 11 define a first accommodating chamber (not marked), wherein the first accommodating chamber is connected to the first lens barrel 11. Similarly, the first connecting member 12 also has a third connecting plate 221 and a fourth connecting plate 222 extending tangentially along the side walls of the second lens barrel 21, respectively. The third connecting plate 221 and the fourth connecting plate 222 are respectively rotatably connected to the central axis, and the angle between the two is an acute angle. The third connecting plate 221, the fourth connecting plate 222 and the second lens barrel 21 define a second accommodating chamber, wherein the second accommodating chamber is connected to the second lens barrel 21. As shown in FIG. Figure 2 FIG. 1 shows a partial internal structure of a binoculars after removing the first connecting plate 121 and the third connecting plate 221, in which some optical elements can be arranged. By arranging a connecting piece between the lens barrel and the central axis, the accommodation space required for the first lens barrel 11 and the second lens barrel 21 can be reduced accordingly, thereby reducing the volume of the lens barrel.

[0025] The first eyepiece group 13 and the second eyepiece group 23 are flushly located at the same axial end of the binoculars 100. The first objective lens group 111 and the second objective lens group 211 are flushly located at the other axial end of the binoculars 100. It should be noted that the axial direction in this article refers to the axial direction of the binoculars 100. The transverse direction in the following text refers to the direction perpendicular to the axial direction. A laser emitting module is also provided in the first mirror body 10 for emitting a laser beam and transmitting the laser beam to the target object. A laser receiving module is provided in the second mirror body 20 for receiving the laser beam reflected back from the target object. Among them, in the axial direction, the laser emitting module is located between the first prism group and the first objective lens group 111. The laser receiving module is located between the second prism group and the second objective lens group 211. Preferably, the laser receiving module and the laser emitting module are also flush in the transverse direction.

[0026] In this embodiment, the laser emission module includes a laser emission module 124 for emitting laser, a first laser reflection natural light transmission mirror 113 for reflecting laser beam and allowing natural light to pass through, and at least two laser reflection mirrors. The laser receiving module includes a laser emission module 124 for receiving laser, a first laser reflection natural light transmission mirror 113 for reflecting laser beam and allowing natural light to pass through, and at least two laser reflection mirrors. Among them, the laser emitted by the laser emission module 124 is successively reflected by at least two laser reflection mirrors in the first mirror body 10 and the first laser reflection natural light transmission mirror 113, and then emitted from the first objective lens group 111 and reaches the target object. The laser reflected by the target object passes through the second objective lens group 211, and is successively reflected by the second laser reflection natural light transmission mirror 213 and at least two laser reflection mirrors in the second mirror body 20, and then received by the laser receiving module 224, thereby forming a distance measurement optical path. Since there are at least two groups of laser reflection mirrors in the first mirror body 10 and the second mirror body 20, the space required for the propagation of the laser optical path can be shortened under the same optical path adjustment. This effectively reduces the size of the telescope.

[0027] Preferably, in this embodiment, there are two laser reflectors in both the first mirror body 10 and the second mirror body 20, and the first mirror body 10 is provided with a first objective lens group 111, a first laser reflector 112, a first laser reflecting natural light transmission mirror 113, a second laser reflector 123 and a laser emission module 124 in sequence along the axial direction. The second mirror body 20 is provided with a second objective lens group 211, a third laser reflector 212, a second laser reflecting natural light transmission mirror 213, a fourth laser reflector 223 and a laser receiving module 224 in sequence along the axial direction. Therefore, the laser emitted by the laser emission module 124 is reflected by the first laser reflector 112, the second laser reflector 123 and the first laser reflecting natural light transmission mirror 113 in sequence, and then emitted from the first objective lens group 111 to the first lens barrel 11, thereby reaching the target object. The laser reflected by the target object passes through the second objective lens group 211 and enters the second lens barrel 21, and is successively reflected by the second laser reflecting natural light transmission mirror 213, the fourth laser reflecting mirror 223 and the third laser reflecting mirror 212, and then is received by the laser receiving module 224. Since the first laser reflecting natural light transmission mirror 113 and the second laser reflecting natural light transmission mirror 213 shell transmit natural light and reflect laser, the natural light emitted by the target object can pass through the laser reflecting natural light transmission mirror and reach the rear prism group, without affecting the propagation of the observation light path. The laser emitting module 124 includes a laser emitting tube and a coupling lens. The laser receiving module 224 includes a laser receiving tube and a coupling lens.

[0028] like Figure 3As shown, the laser emission module 124 and the second laser reflector 123 are located in the first connecting member 12. The first objective lens group 111, the first laser reflector 112 and the first laser reflecting natural light transmission mirror 113 are located in the first lens barrel 11. And the laser emission module 124 is located on the side wall of the first lens barrel 11 close to the first connecting member 12. The first objective lens group 111 is arranged perpendicular to the axial direction. Among them, the laser emission module 124 is arranged opposite to the first laser reflector 112 and the second laser reflector 123 respectively, and the second laser reflector 123 is arranged opposite to the first laser reflecting natural light transmission mirror 113. Preferably, the first laser reflector 112, the second laser reflector 123 and the first laser reflecting natural light transmission mirror are arranged obliquely relative to the axial direction. And the first laser reflector 112 is arranged flush with the laser emission module 124 in the horizontal direction, and the second laser reflector 123 is arranged flush with the first laser reflecting natural light transmission mirror in the horizontal direction. In this embodiment, the sizes of the first laser reflector 112 and the second laser reflector 123 are both smaller than the first laser reflecting natural light transmission mirror. Preferably, the first laser emission module 124 emits a horizontal laser so that after being reflected by the first laser reflector 112, the second laser reflector 123 and the first laser reflecting natural light transmission mirror 113, it is emitted along the axial direction of the first lens barrel 11 to form a laser emission optical path. More preferably, the plane where the second laser reflector is located is parallel to the plane where the first laser reflecting natural light perspective mirror is located. Similarly, the plane where the fourth laser reflector is located is parallel to the plane where the second laser reflecting natural light projection mirror is located.

[0029] Similarly, the laser receiving module 224 and the fourth laser reflector 223 are located in the second connecting member 22. The second objective lens group 211, the second laser reflector 123 and the third laser reflecting natural light transmission mirror are located in the first lens barrel 11. And the laser receiving module 224 is located on the side wall of the second lens barrel 21 close to the second connecting member 22. The second objective lens group 211 is arranged perpendicular to the axial direction. Among them, the laser receiving module 224 is arranged opposite to the third laser reflector 212 and the fourth laser reflector 223 respectively, and the fourth laser reflector 223 is arranged opposite to the second laser reflecting natural light transmission mirror 213. Preferably, the third laser reflector 212, the fourth laser reflector 223 and the second laser reflecting natural light transmission mirror are arranged obliquely relative to the axial direction. And the third laser reflector 212 is arranged flush with the laser receiving module 224 in the horizontal direction, and the fourth laser reflector 223 is arranged flush with the second laser reflecting natural light transmission mirror in the horizontal direction. The laser reflected by the target object enters the second lens barrel 21 along the axial direction of the second lens barrel 21, and is successively reflected by the second laser reflecting natural light transmission mirror 213, the fourth laser reflecting mirror 223 and the third laser reflecting mirror 212, and then is received by the laser receiving module 224 to form a laser receiving optical path, such as Figure 4 Preferably, the sizes of the third laser reflecting mirror 212 and the fourth laser reflecting mirror 223 are both smaller than the second laser reflecting natural light transmitting mirror.

[0030] In an optional embodiment, the first laser reflecting natural light transmission mirror 113 and the second laser reflecting natural light transmission mirror 213 are both dichroic mirrors. The first objective lens group 111 includes a first objective lens 1111 and a second objective lens 1112, wherein the first objective lens 1111 is closer to the second laser reflecting mirror 123 relative to the second objective lens 1112. And the radial size and thickness of the first objective lens 1111 are both smaller than the second objective lens 1112. Similarly, the second objective lens group 211 includes a third objective lens 2111 and a fourth objective lens 2112, wherein the third objective lens is closer to the fourth laser reflecting mirror 223 relative to the fourth objective lens. And the radial size and thickness of the third objective lens are both smaller than the fourth objective lens. The first objective lens 1111 and the third objective lens 2111 are monolithic objective lenses, and the second objective lens 1112 and the fourth objective lens 2112 are glued objective lenses. Compared with the prior art which only uses a single glued objective lens, better clarity can be obtained.

[0031] It is understandable that the binoculars 100 of this embodiment includes a processor (not shown). The laser emitted by the laser emitting module 124 is reflected by the target object and reaches the laser receiving module 224. The laser receiving module 224 then transmits the received laser signal to the processor, and the distance from the binoculars 100 to the target object is obtained after processing. The overall optical path composed of the laser emitting optical path and the laser receiving optical path is also called the laser optical path.

[0032] Optionally, the first laser reflecting natural light transmission mirror 113 and the second laser reflecting natural light transmission mirror 213 are both dichroic mirrors, which can use narrow-band coating to reflect 100% of the laser of the specified wavelength of the laser emission module 124. As much specific band laser reflection as possible is involved in the ranging work. Optionally, the first laser reflection mirror 112, the first laser reflecting natural light transmission mirror 113, the second laser reflection mirror 123 and the second laser reflecting natural light transmission mirror 213 can be replaced by prisms respectively. Optionally, the first, second, third and fourth laser reflection mirrors can fully reflect the laser beam.

[0033] After the laser optical path and the observation optical path in the binocular ranging telescope 100 provided by the utility model are separated, the total laser power of the laser optical path is higher under the same laser tube emission power, and the adjustment of the optical path is greatly simplified.

[0034] The above description is only a preferred specific implementation manner of the present invention. The protection scope of the present invention is not limited to the embodiments listed above. Any simple change or equivalent replacement of the technical solution that can be obviously obtained by any technician familiar with the technical field within the technical scope disclosed in the present invention falls within the protection scope of the present invention.

Claims

1. A binocular rangefinder telescope, comprising a first mirror body and a second mirror body, characterized in that: A first objective lens group, a first laser reflecting natural light transmission mirror, a laser emission module and at least two laser reflection mirrors are arranged at the inner edge of the first mirror body; a second objective lens group, a second laser reflecting natural light transmission mirror, a laser receiving module and at least two laser reflection mirrors are arranged in the second mirror body, wherein the first laser reflecting natural light transmission mirror and the second laser reflecting natural light transmission mirror are used to reflect the laser beam and allow natural light to pass through, and the laser emitted by the laser emission module is successively reflected by at least two laser reflection mirrors in the first mirror body and the first laser reflecting natural light transmission mirror, and then emitted from the first objective lens group and reaches the target object, forming a laser emission optical path; the laser reflected by the target object passes through the second objective lens group, and is successively reflected by the second laser reflecting natural light transmission mirror and at least two laser reflection mirrors in the second mirror body, and then received by the laser receiving module, forming a laser receiving optical path.

2. The binoculars according to claim 1, characterized in that: The first objective lens group and / or the second objective lens group consists of two objective lenses arranged in parallel along the axial direction.

3. The binoculars for ranging according to claim 1, characterized in that: There are two laser reflectors in the first mirror body and the second mirror body. A laser emission module, a first laser reflector, a second laser reflector, a first laser reflecting natural light projection mirror and a first objective lens group are arranged in sequence in the first mirror body along the laser emission optical path; a second objective lens group, a second laser reflecting natural light transmission mirror, a fourth laser reflector, a third laser reflector and a laser receiving module are arranged in sequence in the second mirror body along the laser receiving optical path.

4. The binoculars according to claim 3, characterized in that: It also includes a central axis connected to the first mirror body and the second mirror body respectively, the first mirror body includes a first lens barrel and a first connecting member that are connected and communicated with each other, the second mirror body includes a second lens barrel and a second connecting member that are connected and communicated with each other, the first connecting member and the second connecting member are respectively rotationally connected to the central axis.

5. The binoculars for ranging according to claim 1, characterized in that: The laser emitting module comprises a laser emitting tube and a coupling lens which are arranged adjacent to each other, and the laser receiving module comprises a laser receiving tube and a coupling lens which are arranged adjacent to each other.

6. The binoculars according to claim 4, characterized in that: The laser emitting module and the second laser reflecting mirror are located in the first connecting member, and / or the laser receiving module and the fourth laser reflecting mirror are located in the second connecting member.

7. The binoculars according to claim 6, characterized in that: The first objective lens group, the first laser reflecting mirror and the first laser reflecting natural light transmitting mirror are located in the first lens barrel, and / or the second objective lens group, the second laser reflecting natural light transmitting mirror and the third laser reflecting mirror are located in the first lens barrel.

8. The binoculars according to claim 3, characterized in that: The first laser reflecting mirror is respectively arranged opposite to the laser emitting module and the second laser reflecting mirror, and / or the third laser reflecting mirror is respectively arranged opposite to the laser receiving module and the fourth laser reflecting mirror.

9. The binoculars according to claim 6, characterized in that: The second laser reflecting mirror is respectively arranged opposite to the first laser reflecting mirror and the first laser reflecting natural light transmitting mirror, and / or the fourth laser reflecting mirror is respectively arranged opposite to the third laser reflecting mirror and the second laser reflecting natural light transmitting mirror.

10. The binoculars according to claim 3, characterized in that: The plane where the second laser reflection mirror is located is arranged in parallel with the plane where the first laser reflection natural light perspective mirror is located, and / or the plane where the fourth laser reflection mirror is located is arranged in parallel with the plane where the second laser reflection natural light projection mirror is located.

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