Movable focusing laser seat and telescope
By designing a movable focus laser seat in a biboscopic range-finding telescope, separating the laser and observing the optical path, and using the reflector and transmitting mirror structures in the laser seat, the low efficiency and complex adjustment of the laser light path in the prior art are solved. The problem is that more efficient laser transmission and simplified optical path adjustment are achieved.
Patent Information
- Application Number
- CN202421087142.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The laser emission and reception optical paths of existing biboscopic range-finding telescopes are mixed with the observation optical path in the prism group, resulting in low efficiency of the laser optical path and complex adjustment.
A movable focus laser seat is designed, including a first laser seat and a second laser seat arranged separately. By reducing the reflection surface in the laser light path, the laser light path is separated from the observation light path, and the laser light path is provided with a laser emission and reception circuit in the laser stand. The board uses an objective lens and a natural light transmitting mirror to achieve effective transmission and reception of laser light, and adjusts the focal length through the rotation of the central axis.
The efficiency and total power of the laser optical path are improved, the optical path adjustment process is simplified, the number of reflective surfaces in the laser optical path is reduced, the transmission capacity of the laser is enhanced, and the stability of the observation optical path is maintained.
Smart Images
Figure CN222232772U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of optoelectronic technology, in particular to a movable focusing laser seat and a 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. Too many mirrors are used for emission and reception through the prism group, which greatly reduces the efficiency of the optical path. On the one hand, it leads to low efficiency of the laser optical path, and on the other hand, the adjustment of the laser optical path and the observation optical path after mixing is too complicated. Utility Model Content
[0003] In view of this, the utility model provides a movable focusing laser stand and a telescope which can solve or optimize the above problems.
[0004] On the one hand, the utility model provides a movable focusing laser seat, which is used to be connected to the lens barrel of a telescope tube for ranging. The laser seat includes a first laser seat and a second laser seat which are separately arranged. The first laser seat is provided with a first objective lens and a first laser reflecting natural light transmission mirror at two axial ends respectively, and a first laser reflecting mirror and a laser emitting circuit board are arranged in the first laser seat; the second laser seat is provided with a second objective lens and a second laser reflecting natural light transmission mirror at two axial ends respectively, and a second laser reflecting mirror and a laser receiving circuit board are arranged in the second laser seat, 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, wherein the objective lens is shared by the laser seat and the telescope tube, the laser emitted by the laser emitting circuit board is successively reflected by the first laser reflecting mirror and the first laser reflecting natural light transmission mirror, and then emitted from the first objective lens and reaches the target object, the laser reflected by the target object passes through the second objective lens, and is successively reflected by the second laser reflecting natural light transmission mirror and the second laser reflecting mirror, and then received by the laser receiving circuit board.
[0005] In some embodiments, the laser mount is hollow, and its central axis coincides with the central axis of the corresponding telescope barrel.
[0006] In some embodiments, the laser emitting circuit board and the first laser reflector are located on opposite side walls in the first laser seat, and the laser receiving circuit board and the second laser reflector are located on opposite side walls in the second laser seat.
[0007] In some embodiments, the first laser reflecting natural light transmission mirror and the second laser reflecting natural light transmission mirror are tilted relative to the central axis.
[0008] In some embodiments, a laser emission coupling mirror for focusing laser light is disposed at the front end of the laser emission circuit board, and a laser receiving coupling mirror for focusing laser light is disposed at the front end of the laser receiving circuit board.
[0009] In some embodiments, the first laser reflecting natural light transmitting mirror and the second laser reflecting natural light transmitting mirror are both dichroic mirrors.
[0010] Another aspect of the present application provides a telescope, comprising a lens barrel, wherein the above-mentioned movable focusing laser seat is arranged inside the lens barrel.
[0011] In some embodiments, the lens barrel includes a first lens barrel, a second lens barrel and a central axis, the first lens barrel and the second lens barrel are respectively rotatably connected to the central axis, the first laser seat and the second laser seat are respectively mounted in the first lens barrel and the second lens barrel, and the first laser seat and the second laser seat are respectively connected to the central axis, and rotating the central axis can adjust the axial position of the first laser seat and the second laser seat in the corresponding lens barrel to achieve focusing of the telescope.
[0012] In some embodiments, a prism group and an eyepiece group are provided in the lens barrel, wherein the objective lens and the eyepiece are respectively located at the axial ends of the lens barrel, the prism group is located between the objective lens and the eyepiece group, and the prism group includes two half-penta prisms arranged at intervals, and a roof prism is provided between the two half-penta prisms.
[0013] In some embodiments, the lens barrel also includes a display screen for displaying projections and a coupling lens for converging the projections from the display screen. The display screen and the coupling lens are located on opposite sides of the lens barrel with the roof prism, and the wedge mirror mixes the display content into the prism group and projects it onto the eyepiece group.
[0014] Compared with the prior art, the utility model has the beneficial effect that the laser distance measuring component is arranged on the movable focus laser seat, the relative positions of the components are fixed, and the adjustment is simpler; and the observation optical path can be moved by the movable focus laser seat to achieve focal length adjustment. In addition, the laser optical path is separated before the prism group, the reflection surface through which the laser optical path passes is reduced, and the total power of the laser is higher under the same laser emission circuit board power. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A stereoscopic diagram of a telescope according to an embodiment of the utility model is shown.
[0016] Figure 2 Shows Figure 1 Schematic diagram of the internal structure of the first lens barrel of the telescope shown.
[0017] Figure 3 Shows Figure 1 Schematic diagram of the structure of the first laser mount of the telescope shown.
[0018] Figure 4 Shows Figure 1 Schematic diagram of the structure of the second laser mount of the telescope shown.
[0019] Figure 5 Shown as Figure 1 A partial cutaway view of the telescope shown.
[0020] 100, binocular rangefinder; 10, first mirror body; 11, first mirror tube; 12, first connecting piece; 13, first laser seat; 131, first objective lens; 132, first laser reflection natural light transmission mirror; 133, first laser reflection mirror; 134, laser emission circuit board; 135, laser emission coupling mirror; 14, first eyepiece group; 151, half pentaprism; 152, roof prism; 153, wedge mirror; 16, coupling lens; 17. Display screen; 20. Second mirror body; 21. Second lens barrel; 22. Second connecting piece; 23. Second laser seat; 231. Second objective lens; 232. Second laser reflecting natural light transmission mirror; 233. Second laser reflecting mirror; 234. Laser receiving circuit board; 235. Laser receiving coupling mirror; 24. Second eyepiece group; 30. Central axis; 31. Hand wheel; 121. First connecting rod; 122. Second connecting rod; 123. Cross bar. DETAILED DESCRIPTION
[0021] 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.
[0022] Also refer to Figure 1 The binocular distance measuring telescope 100 of the first embodiment of the utility model comprises a first mirror body 10 and a second mirror body 20. The first mirror body 10 is provided with a first laser seat 13, a first eyepiece group 14 and a prism group located between the first laser seat 13 and the first eyepiece group 14. The second mirror body 20 is provided with a second laser seat 23, a second eyepiece group 24 and a prism group located between the second laser seat 23 and the second eyepiece group 24. The first laser seat 13 and the second laser seat 23 respectively form a laser emission and receiving optical path, so as to measure the distance of the target object.
[0023] Specifically, Figure 2 and Figure 3As shown, the first laser seat 13 is sleeved in the first lens barrel 11. The first laser seat 13 is provided with a first objective lens 131 and a first laser reflecting natural light transmission mirror 132 at both ends of the axial direction, and a first laser reflecting mirror 133 and a laser emission circuit board 134 are provided in the first laser seat 13. Among them, the objective lens is shared by the laser seat and the telescope barrel. The laser emitted by the laser emission circuit board 134 is reflected by the first laser reflecting mirror 133 and the first laser reflecting natural light transmission mirror 132 in succession, and then emitted from the first objective lens 131 group and reaches the target object, forming a laser emission optical path, as shown in FIG. Figure 3 Similarly, Figure 4 As shown, the second objective lens 231 and the second laser reflecting natural light transmission mirror 232 are respectively provided at the two axial ends of the second laser seat 23, and the second laser reflecting mirror 233 and the laser receiving circuit board 234 are provided in the second laser seat 23. The laser reflected by the target object passes through the second objective lens 231 group, and is successively reflected by the second laser reflecting natural light transmission mirror 232 and the second laser reflecting mirror 233 and received by the laser receiving circuit board 234, thereby forming a laser receiving optical path. It can be understood that the binoculars 100 of this embodiment include a processor (not shown). The laser emitted by the laser emitting circuit board 134 is reflected by the target object and reaches the laser receiving circuit board 234, and the laser receiving circuit board 234 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.
[0024] In this embodiment, the laser seat is hollow, and the center axis 30 line of the laser seat coincides with the center axis 30 line of the sleeved lens barrel. The first laser reflecting natural light transmission mirror 132 and the second laser reflecting natural light transmission mirror 232 are tilted relative to the center axis 30 line. The laser emitting circuit board 134 and the first laser reflector are located on opposite side walls in the first laser seat 13. The laser receiving circuit board 234 and the second laser reflector are located on opposite side walls in the second laser seat 23. In this way, the laser emitted by the laser emitting circuit board 134 can be emitted from the first lens barrel 11 to the target object along the axial direction after being reflected by the first laser reflecting mirror 133 and the first laser reflecting natural light transmission mirror 132. After the laser reflected back by the target enters the second lens barrel 21, it can be received by the laser receiving circuit board 234 after being reflected by the first laser reflecting natural light transmission mirror 132 and the first laser reflecting mirror 133. Preferably, the front end of the laser emitting circuit board 134 is provided with a laser emitting coupling mirror 135 for converging laser light, and the front end of the laser receiving circuit board 234 is provided with a laser receiving coupling mirror 235 for converging laser light. The setting of the laser seat makes the relative positions of the internal components thereof fixed, and the overall adjustment is simpler. In addition, since the telescope and the laser seat share the objective lens, and the first laser reflecting natural light transmission mirror 132 and the second laser reflecting natural light transmission mirror 232 are used to reflect the laser beam and allow natural light to pass through, the natural light can generate an observation light path after passing through the objective lens, the prism group and the eyepiece. Therefore, the setting of the laser seat has no effect on the observation light path of the telescope.
[0025] In this embodiment, the prism group is located between the laser base and the eyepiece to realize the erect image of the observation light path. Figure 2 and Figure 5 As shown, the prism group in the first lens barrel 11 has the same structure as the prism group in the second lens barrel 21. Here, the prism group in the first lens barrel 11 is used for illustration, and includes two half pentaprisms 151 spaced apart in the axial direction, and a roof prism 152 and a wedge mirror 153 are arranged between the two half pentaprisms 151. By arranging the two half pentaprisms 151 and the roof prism 152, the projection display effect is better.
[0026] Preferably, a display screen 17 for displaying the distance measurement projection and a coupling lens 16 for converging the projection of the display screen 17 are also provided in the lens barrel. The display screen 17 is electrically connected to the processor and is used to display the distance data obtained by the processor. A coupling lens 16282 is provided outside the display screen 17281 for converging the light of the data emitted by the display screen 17281. In this embodiment, the display screen 17 and the coupling lens 16 are located between the two half pentaprisms 151 and are arranged adjacent to the wedge mirror, so that the light emitted by the display screen 17281 is converged by the coupling lens 16282 and refracted by the wedge mirror into the half pentaprism 151, that is, it is merged into the observation light path of the lens barrel, and finally received by the user together with the natural light, so that the user can see its distance data while observing the target object.
[0027] 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 30 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.
[0028] Specifically, the first lens 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 lens 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 30, so that the first lens body 10 and the second lens body 20 can rotate around the central axis 30 respectively.
[0029] The connecting member is roughly prism-shaped, and a connecting rod is arranged inside it. A hand wheel 31 is arranged on the central axis 30. The connecting rod is connected to the hand wheel 31 and the laser seat respectively. When the hand wheel 31 is turned, the laser seat can move axially in the corresponding lens barrel. Specifically, Figure 5 As shown, the connecting rod includes a first connecting rod 121 and a second connecting rod 122 extending in the axial direction respectively. The first connecting rod 121 and the second connecting rod 122 are connected by a cross bar 123, one axial end of the first connecting rod 121 is connected to the hand wheel 31, and the second connecting rod 122 is connected to the laser seat. When the hand wheel 31 is turned, the axial movement of the first connecting rod 121 drives the axial movement of the second connecting rod 122 and the laser seat. Therefore, the focal length adjustment of the observation light path can be completed by moving the laser seat forward and backward in the observation light path.
[0030] 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.
[0031] 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 movable focusing laser stand, used to connect with the lens barrel of a telescope tube for distance measurement, characterized in that: The laser seat comprises a first laser seat and a second laser seat which are separately arranged, wherein the first laser seat is provided with a first objective lens and a first laser reflecting natural light transmission mirror at two axial ends respectively, and the first laser seat is provided with a first laser reflecting mirror and a laser emitting circuit board; the second laser seat is provided with a second objective lens and a second laser reflecting natural light transmission mirror at two axial ends respectively, and the second laser seat is provided with a second laser reflecting mirror and a laser receiving circuit board, 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, wherein the objective lens is shared by the corresponding laser seat and the telescope tube, the laser emitted by the laser emitting circuit board is successively reflected by the first laser reflecting mirror and the first laser reflecting natural light transmission mirror, then emitted from the first objective lens and reaches the target object, the laser reflected by the target object passes through the second objective lens, and is successively reflected by the second laser reflecting natural light transmission mirror and the second laser reflecting mirror, then received by the laser receiving circuit board.
2. The movable focus laser stand according to claim 1, characterized in that: The laser seat is hollow, and the central axis of the laser seat coincides with the central axis of the corresponding telescope barrel.
3. The movable focus laser stand according to claim 2, characterized in that: The laser emitting circuit board and the first laser reflector are located on opposite side walls in the first laser seat, and the laser receiving circuit board and the second laser reflector are located on opposite side walls in the second laser seat.
4. The movable focus laser stand according to claim 3, characterized in that: The first laser reflecting natural light transmitting mirror and the second laser reflecting natural light transmitting mirror are respectively arranged to be inclined relative to the central axis of the corresponding lens barrel.
5. The movable focus laser stand according to claim 3, characterized in that: The front end of the laser emitting circuit board is provided with a laser emitting coupling mirror for converging laser light, and the front end of the laser receiving circuit board is provided with a laser receiving coupling mirror for converging laser light.
6. The movable focus laser stand according to claim 1, characterized in that: The first laser reflecting natural light transmission mirror and the second laser reflecting natural light transmission mirror are both dichroic mirrors.
7. A telescope, comprising a lens barrel, characterized in that: The lens barrel is provided with a movable focusing laser seat as described in any one of claims 1-6.
8. The telescope according to claim 7, characterized in that The lens barrel includes a first lens barrel, a second lens barrel and a central axis. The first lens barrel and the second lens barrel are rotatably connected to the central axis respectively. The first laser seat and the second laser seat are respectively sleeved in the first lens barrel and the second lens barrel, and the first laser seat and the second laser seat are respectively connected to the central axis. Rotating the central axis can adjust the axial positions of the first laser seat and the second laser seat in the corresponding lens barrel to achieve focusing of the telescope.
9. The telescope according to claim 7, characterized in that: A prism group and an eyepiece group are also provided in the lens barrel, wherein the prism group is located between the laser seat and the eyepiece group, and the prism group includes two half-penta prisms spaced apart axially, and a roof prism and a wedge mirror are provided between the two half-penta prisms.
10. The telescope according to claim 9, characterized in that The lens barrel is also provided with a display screen for displaying ranging projection and a coupling lens for converging the projection of the display screen. The display screen and the coupling lens are arranged adjacent to the wedge-shaped mirror, and the wedge-shaped mirror mixes the display content into the prism group and projects it to the eyepiece group.