Lens switching mechanism and corner mirror

Abstract

The invention discloses a lens switching mechanism and a corner mirror. The lens switching mechanism comprises a shell used for being installed with the corner mirror in a matched mode, a sliding block movably installed in the shell, and at least two optical lenses which are arranged on the sliding block and have different optical characteristics. The shell is provided with an observation window through which a light path of the corner mirror can pass, and the light path is a propagation path of light rays between a reflecting mirror and an eyepiece of the corner mirror; a working position corresponding to the observation window is arranged in the shell, the light path can pass through the optical lenses located at the working position, and the sliding block can be operated to adjust the position of the light path in the shell, so that any one of the at least two optical lenses moves to the working position. After the lens switching mechanism is installed on the corner mirror, different optical lenses are switched to working positions by adjusting the sliding block, and different solar activities can be observed. The corner mirror does not need to be disassembled and the optical lens does not need to be replaced, so that the operation convenience is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of corner mirrors, and in particular relates to a lens switching mechanism and a corner mirror. Background Art

[0002] Corner mirrors are mainly used in astronomical telescopes to change the direction of the light path, allowing observers to observe celestial bodies more comfortably from the side of the telescope instead of directly through the eyepiece. This design makes the astronomical telescope more user-friendly, provides observers with a more comfortable observation experience, avoids neck fatigue, and also improves the flexibility and convenience of observation.

[0003] After being installed on an astronomical telescope, the existing corner mirror can be used to observe solar activities and can provide a comfortable observation angle for the observer. Its visual effect depends on the optical performance of the matching telescope and eyepiece. If you need to observe different solar activities, such as sunspots, prominences, spots, spectral spots, etc., you need to switch the corresponding optical lenses for observation. Therefore, when you need to observe different solar activities, you need to disassemble the corner mirror and replace the corresponding optical lenses. The above operation steps are many and time-consuming.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a lens switching mechanism and a corner mirror. Summary of the invention

[0005] The object of the present invention is to provide a lens switching mechanism and a corner mirror, which can solve the above-mentioned problem of multiple operating steps and long time consumption when disassembling and assembling the corner mirror and replacing the corresponding optical lens.

[0006] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a lens switching mechanism, and the technical solution is as follows:

[0007] A lens switching mechanism comprises a housing for being mounted in cooperation with a corner mirror, a slider movably mounted in the housing, and at least two optical lenses with different optical properties arranged on the slider;

[0008] The housing is provided with an observation window through which the optical path of the corner mirror can pass, and the optical path is the propagation path of the light between the reflector and the eyepiece of the corner mirror;

[0009] A working position corresponding to the observation window is provided in the shell, the light path can pass through the optical lens located at the working position, and the slider can be operably adjusted to adjust its position in the shell so that any one of the at least two optical lenses can be moved to the working position.

[0010] In one or more embodiments of the present invention, the lens switching mechanism also includes a switching component that can drive the slider to move; the switching component includes a guide rod installed in the shell, the slider can be slidably passed through the guide rod, and the extension direction of the line connecting the center points of at least two optical lenses on the slider is parallel to the extension direction of the guide rod.

[0011] In one or more embodiments of the present invention, the switching assembly further comprises a shift block mounted on the side of the slider, the shell is provided with an avoidance groove for the shift block to pass through, and the shift block can be shifted to move the slider along the extension direction of the guide rod.

[0012] In one or more embodiments of the present invention, the lens switching mechanism further comprises a positioning member installed in the housing, and the positioning member is installed in cooperation with the slider to position the optical lens on the slider at the working position.

[0013] In one or more embodiments of the present invention, one of the positioning member or the slider is provided with a protrusion, and the other is provided with a recessed portion in cooperation therewith, and the protrusion and the recessed portion cooperate to position the optical lens at the working position.

[0014] In one or more embodiments of the present invention, the protrusion is provided on the positioning member, and the recess is provided on the slider;

[0015] The positioning member includes a cylinder fixedly connected to the shell, an abutment body slidably inserted into the cylinder, and an elastic body cooperating with the abutment body; the protrusion is located on the abutment body, and the elastic body has elastic potential energy that moves the abutment body away from the cylinder to drive the protrusion to abut against the recessed portion.

[0016] In one or more embodiments of the present invention, the recessed portion includes a groove, the groove includes two oppositely arranged abutment surfaces, and a side of the abutment body away from the elastic body is smoothly arranged; an inclination angle is arranged between the two abutment surfaces, which is used to cooperate with the abutment end of the abutment body to push the abutment body close to the cylinder.

[0017] In one or more embodiments of the present invention, an extension direction of a line connecting the protrusions or recesses on the sliding block is parallel to an extension direction of the guide rod.

[0018] In one or more embodiments of the present invention, the positioning member is configured as a ball screw.

[0019] A specific embodiment of the present invention further provides a corner mirror, and the technical solution is as follows:

[0020] A corner mirror comprises a reflector assembly, an eyepiece assembly, and a lens switching mechanism as described above which is installed between the reflector assembly and the eyepiece assembly.

[0021] Compared with the prior art, after the lens switching mechanism of the present invention is installed on the corner mirror, by adjusting the position of the slider in the housing, any optical lens can be moved to the working position. At this time, light can be transmitted to the observation window through the optical lens, so that the observer can observe different solar activities. Therefore, when the lens switching mechanism of the present invention is used, different optical lenses can be switched to the working position by adjusting the slider, and can be used in conjunction with an astronomical telescope to observe different solar activities. Since there is no need to disassemble the corner mirror and replace the optical lens, the convenience of operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic structural diagram of a corner mirror in one embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of a lens switching mechanism and a corner mirror assembly in one embodiment of the present invention;

[0025] Figure 3 A top view of a lens switching mechanism and a corner mirror assembly in one embodiment of the present invention;

[0026] Figure 4 for Figure 3 Enlarged schematic diagram at point A in the middle.

[0027] Description of main reference numerals:

[0028] 1. Shell; 11. Observation window; 2. Slider; 3. Optical lens; 4. Switching assembly; 41. Guide rod; 42. Dial block; 43. Positioning member; 5. Protrusion; 6. Concave portion; 61. Abutment surface;

[0029] 100. lens switching mechanism; 200. reflector assembly; 300. eyepiece assembly. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0031] Reference Figure 1 and Figure 2 In one embodiment of the present invention, a lens switching mechanism is disclosed, comprising a shell 1 for being installed in cooperation with a corner mirror, a slider 2 movably installed in the shell 1, and at least two optical lenses 3 with different optical properties arranged on the slider 2; the shell 1 is provided with an observation window 11 for the light path of the corner mirror to pass through, and the light path is the propagation path of the light between the reflector and the eyepiece of the corner mirror; a working position corresponding to the observation window 11 is provided in the shell 1, and the light path can pass through the optical lens 3 located at the working position, and the slider 2 can be operably adjusted to adjust its position in the shell 1 so that any one of the at least two optical lenses 3 is moved to the working position.

[0032] In this embodiment, the lens switching mechanism is installed in conjunction with the corner mirror, which is then installed in the astronomical telescope. The propagation direction of the light can be adjusted through the structure of the corner mirror, so that it is convenient for relevant personnel to observe solar activities. By adjusting the position of the slider 2 in the housing 1, the optical lens 3 can be moved to the working position respectively, so that different solar activities can be observed through the observation window 11.

[0033] In this embodiment, two optical lenses 3 are provided as an example, which does not limit the number of optical lenses 3 in this embodiment. In fact, in other embodiments, the number of optical lenses 3 can be three, four, five or even more. The two optical lenses 3 in this embodiment are respectively a prominence lens and a sunspot optical lens, which are used to observe prominences and sunspots.

[0034] Reference Figure 2 , the lens switching mechanism further includes a switching assembly 4 that can drive the slider 2 to move; the switching assembly 4 includes a guide rod 41 installed in the housing 1, the slider 2 is slidably arranged on the guide rod 41, and the extension direction of the line connecting the center points of at least two optical lenses 3 on the slider 2 is parallel to the extension direction of the guide rod 41. In this embodiment, two groups of guide rods 41 are provided. The provision of the guide rods 41 can limit the sliding direction of the slider 2 and improve the sliding stability of the slider 2, so that the optical lenses 3 on the slider 2 are respectively moved to the working position to achieve the purpose of switching different optical lenses 3.

[0035] Reference Figure 1 and Figure 2 Furthermore, the switching assembly 4 further includes a shifting block 42 mounted on the side of the slider 2, and the housing 1 is provided with an avoidance groove for the shifting block 42 to pass through, and the shifting block 42 can be shifted to make the slider 2 move along the extension direction of the guide rod 41. The position of the slider 2 can be adjusted by shifting the shifting block 42, and further the position of the optical lens 3 can be adjusted.

[0036] Reference Figure 3 and Figure 4 The lens switching mechanism further includes a positioning member 43 installed in the housing 1, and the positioning member 43 is installed in cooperation with the slider 2 to position the optical lens 3 on the slider 2 at the working position. Specifically, one of the positioning member 43 or the slider 2 is provided with a protrusion 5, and the other is provided with a recessed portion 6, and the protrusion 5 and the recessed portion 6 cooperate to position the optical lens 3 at the working position.

[0037] Reference Figure 3 and Figure 4 In this embodiment, the protrusion 5 is provided on the positioning member 43, and the recessed portion 6 is provided on the slider 2. In other embodiments, the recessed portion 6 can also be provided on the positioning member 43, and the protrusion 5 can be provided on the slider 2.

[0038] The positioning member 43 includes a cylinder fixedly connected to the housing 1, an abutment body slidably inserted into the cylinder, and an elastic body arranged in cooperation with the abutment body; the protrusion 5 is located on the abutment body, and the elastic body has elastic potential energy to make the abutment body away from the cylinder, so as to drive the protrusion 5 to abut against the recessed portion 6. In this embodiment, the extension path of the abutment body passes through the center of the working position to position the optical lens 3.

[0039] Therefore, the abutment body can always abut against the side wall of the slider 2 under the action of the elastic body. When the slider 2 is moved along the extension direction of the guide rod 41, the abutment body can enter the recessed portion 6 of the slider 2. At this time, the corresponding optical lens 3 can be positioned at the working position by stopping the sliding slider 2. In this embodiment, the positioning member 43 is set as a ball screw.

[0040] Reference Figure 3 and Figure 4 The recessed portion 6 is provided on the slider 2, and the recessed portion 6 includes a groove, and the groove includes two oppositely arranged abutting surfaces 61, and the side of the abutting body away from the elastic body is smoothly arranged; an inclined angle is provided between the two abutting surfaces 61, which is used to cooperate with the abutting end of the abutting body to push the abutting body close to the cylinder. Therefore, when the abutting body is already in the groove, if another lens needs to be switched, the slider 2 can be pushed to move, and the abutting surface 61 of the groove can drive the abutting body close to the cylinder so that the abutting body is away from the groove, thereby facilitating the switching of the next optical lens 3.

[0041] Reference Figure 3 and Figure 4, the extending direction of the connecting line of the protrusion 5 or the recess 6 on the slider 2 is parallel to the extending direction of the guide rod 41. Therefore, it is convenient to position the optical lens 3 at the working position to observe different solar activities.

[0042] Reference Figure 1 In one embodiment of the present invention, a corner mirror is also disclosed, including a reflector assembly 200, an eyepiece assembly 300, and a lens switching mechanism 100 as described above installed between the reflector assembly 200 and the eyepiece assembly 300.

[0043] In this embodiment, when the corner mirror provided with the lens switching mechanism is installed in the astronomical telescope, it is convenient for the observer to observe solar activities at a comfortable angle. When different solar activities need to be observed, such as sunspots or solar prominences, it is only necessary to adjust the slider 2 to switch the corresponding optical lens 3 to the working position to observe the corresponding solar activities. Since there is no need to disassemble the corner mirror and replace the optical lens 3, the convenience of operation is improved.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lens switching mechanism, characterized in that: It comprises a housing (1) for being mounted in cooperation with a corner mirror, a slider (2) movably mounted in the housing (1), and at least two optical lenses (3) with different optical characteristics arranged on the slider (2); The housing (1) is provided with an observation window (11) through which the optical path of the corner mirror can pass, wherein the optical path is the propagation path of the light between the reflector and the eyepiece of the corner mirror; A working position corresponding to the observation window (11) is provided in the housing (1); the optical path can pass through the optical lens (3) located at the working position; and the slider (2) can be operatively adjusted to adjust its position in the housing (1) so that any one of the at least two optical lenses (3) can be moved to the working position.

2. The lens switching mechanism according to claim 1, characterized in that: It also includes a switching component (4) that can drive the slider (2) to move; the switching component (4) includes a guide rod (41) installed in the housing (1), the slider (2) can be slidably inserted into the guide rod (41), and the extension direction of the line connecting the center points of at least two optical lenses (3) on the slider (2) is parallel to the extension direction of the guide rod (41).

3. The lens switching mechanism according to claim 2, characterized in that: The switching assembly (4) further comprises a shifting block (42) mounted on the side of the slider (2); the housing (1) is provided with an avoidance groove for the shifting block (42) to pass through; the shifting block (42) can be shifted to enable the slider (2) to move along the extension direction of the guide rod (41).

4. The lens switching mechanism according to claim 2, characterized in that: It also includes a positioning member (43) installed in the housing (1), wherein the positioning member (43) is installed in cooperation with the slider (2) to position the optical lens (3) on the slider (2) at the working position.

5. The lens switching mechanism according to claim 4, characterized in that: One of the positioning member (43) or the slider (2) is provided with a protruding portion (5), and the other is provided with a recessed portion (6) in cooperation therewith; the protruding portion (5) and the recessed portion (6) cooperate to position the optical lens (3) at the working position.

6. The lens switching mechanism according to claim 5, characterized in that: The protruding portion (5) is arranged on the positioning member (43), and the recessed portion (6) is arranged on the sliding block (2); The positioning member (43) comprises a cylinder fixedly connected to the shell (1), an abutment body slidably inserted into the cylinder, and an elastic body arranged in cooperation with the abutment body; the protrusion (5) is located on the abutment body, and the elastic body has elastic potential energy that causes the abutment body to move away from the cylinder, so as to drive the protrusion (5) to abut against the recessed portion (6).

7. The lens switching mechanism according to claim 6, characterized in that: The recessed portion (6) comprises a groove, the groove comprises two oppositely arranged abutment surfaces (61), and a surface of the abutment body away from the elastic body is smoothly arranged; an inclined angle is arranged between the two abutment surfaces (61) for cooperating with the abutment end of the abutment body to push the abutment body close to the cylinder.

8. The lens switching mechanism according to claim 5, characterized in that: The extension direction of the line connecting the protruding parts (5) or the recessed parts (6) on the sliding block (2) is parallel to the extension direction of the guide rod (41).

9. The lens switching mechanism according to claim 5, characterized in that: The positioning member (43) is configured as a ball screw.

10. A corner mirror, characterized in that: The invention comprises a reflector assembly (200), an eyepiece assembly (300), and a lens switching mechanism (100) as claimed in any one of claims 1 to 9 and installed between the reflector assembly (200) and the eyepiece assembly (300).

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