Eyepiece assembly with adjustable diopter range and adjustable optical axis parallelism and photoelectric equipment

Abstract

The utility model discloses an eyepiece assembly with adjustable diopter range and adjustable optical axis parallelism, which comprises a connecting piece, a main eyepiece sleeve, an eccentric sleeve and a hand wheel, and is characterized in that the connecting piece comprises a connecting body and a connecting end, and the side wall of the connecting body is provided with a guide groove; the main eyepiece sleeve is sleeved in the connecting body, the outer side wall of the main eyepiece sleeve is provided with a guide block extending out of the guide groove, and the outer side of the guide block is provided with an external thread; the outer side wall of the eccentric tube is in threaded connection with the inner side wall of the main eyepiece tube; the hand wheel is rotationally connected to the connecting body, and the inner side wall of the hand wheel is provided with an internal thread matched with the external thread on the guide block. The eccentric cylinder can rotate relative to the main eyepiece cylinder to adjust the phase of the eccentric cylinder so as to achieve the effect that optical axes are parallel to each other. The hand wheel is rotated to drive the main eyepiece tube to axially move relative to the connecting piece, and the eccentric tube in the main eyepiece tube and the eyepiece in the eccentric tube also axially move, so that the diopter range can be adjusted, and the application range of the eyepiece is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of optoelectronic equipment, in particular to an eyepiece assembly and optoelectronic equipment with adjustable visual range and adjustable optical axis parallelism. Background Art

[0002] For multi-tube and multi-eye electroacoustic equipment, it is necessary to adjust the parallelism of the optical axes between the multiple tubes and between the multiple eyes. The commonly used methods are: adding an adjustment device to the objective segment, such as screw adjustment and objective eccentric tube. By rotating the eccentric tube, the eccentric phase can be adjusted to achieve the effect of parallelism of the optical axes; at the eyepiece end, the eyepiece main tube can be made into an eccentric structure, with the outer contour and inner contour of the eyepiece main tube relatively eccentric. The phase can be adjusted by rotating the connecting piece between the eyepiece and the main tube of the whole machine to achieve the effect of adjusting the parallelism of the optical axes.

[0003] The existing eyepiece adjustment structure for parallel optical axis: the outer contour and inner contour of the eyepiece main barrel are relatively eccentric, and the phase is adjusted by rotating the connecting piece between the eyepiece and the whole machine, which will cause changes in diopter. In order to reduce the change in diopter, a small pitch thread is usually used. In order to make the small pitch thread connection tight, the outer thread and the inner thread are also tightly matched. The material of the connecting piece between the eyepiece and the main barrel of the whole machine is a polymer material with considerable elasticity, which can prevent loosening to a certain extent. These factors limit the selection of the connecting piece material and the thread specification of the eyepiece and the main barrel of the whole machine. At the same time, an eyepiece locking ring must be installed on the main barrel of the whole machine. Compared with the front and back adjustment of the eyepiece of the main barrel of the whole machine, the normal adjustable range of diopter is ensured, which often shortens the effective screwing length of the connecting piece and the main barrel thread of the whole machine.

[0004] In summary, in the prior art, the connecting threads reserved for the locking ring and the connecting piece in the main barrel of the whole machine are relatively long, which compresses the space for other functional modules; the installation of the eyepiece must ensure the visual angle and take into account the parallel adjustment of the optical axis, which results in the connecting threads between the connecting piece and the main barrel being relatively short, which reduces the connection reliability between the two, and after the eyepiece is installed, the visual angle range can no longer be adjusted, thereby limiting the scope of application of the eyepiece. Utility Model Content

[0005] The utility model aims to provide an eyepiece assembly and a photoelectric device with an adjustable visual range and an adjustable optical axis parallelism, which can effectively improve the applicable range of the eyepiece.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An eyepiece assembly with adjustable diopter range and adjustable optical axis parallelism, comprising:

[0008] A connecting piece, comprising a connecting body and a connecting end, wherein the connecting end is used to be connected to a main objective lens barrel of the objective lens assembly, and a guide groove is provided on a side wall of the connecting body;

[0009] A main eyepiece barrel is sleeved in the connecting body, a guide block extending from the guide groove is provided on the outer wall of the main eyepiece barrel, and an external thread is provided on the outer side of the guide block;

[0010] An eccentric barrel, the outer side wall of which is threadedly connected to the inner side wall of the main eyepiece barrel;

[0011] A hand wheel is rotatably connected to the connecting body, and an inner side wall of the hand wheel is provided with an internal thread that cooperates with the external thread on the guide block.

[0012] In some technical schemes, the inner wall of the main eyepiece barrel is provided with a multi-step hole, and the aperture of the multi-step hole increases sequentially from the end of the main eyepiece barrel close to the main objective lens barrel to the end away from the main objective lens barrel; the eccentric barrel is a multi-step shaft that cooperates with the multi-step hole.

[0013] In some technical solutions, a stepped shaft on the multi-step stepped shaft close to the main objective lens barrel is threadedly connected to a stepped hole in the multi-step stepped hole close to the main objective lens barrel.

[0014] In some technical solutions, the eyepiece assembly also includes an eyepiece pressure ring, which is threadedly connected to an end of the eccentric barrel away from the main objective barrel.

[0015] In some technical solutions, a sandwich sealing ring is provided between the eccentric tube and the main eyepiece tube, and a pressure ring sealing ring is provided between the eyepiece pressure ring and the eccentric tube.

[0016] In some technical solutions, the eyepiece assembly also includes a handwheel pressure ring, which is connected to one end of the connecting body away from the connecting end, the outer diameter of the connecting end is larger than the outer diameter of the connecting body, and the handwheel pressure ring is used to limit the axial position of the handwheel installed on the connecting body.

[0017] In some technical solutions, an annular protrusion is provided on the outer wall of one end of the main eyepiece barrel for extending into the interior of the main objective lens barrel, and an installation sealing ring is provided on the outer peripheral side wall of the annular protrusion, and the installation sealing ring is used to seal the annular gap between the annular protrusion and the main objective lens barrel.

[0018] In some technical schemes, a connecting step hole is provided in the connecting end, and an internal thread for threaded connection to the outer wall of the main objective lens barrel is provided on the inner peripheral side wall of the connecting step hole, and the stepped end face of the connecting step hole is used to contact the outer end face of the main objective lens barrel.

[0019] In some technical solutions, a plurality of guide blocks distributed along a circumferential direction are provided on the outer side of the main eyepiece barrel, and a plurality of guide grooves corresponding one-to-one to the guide blocks are provided on the side wall of the connecting body.

[0020] An optoelectronic device comprises an objective lens assembly and also comprises an eyepiece assembly with adjustable visual range and adjustable optical axis parallelism as described in any of the above items, wherein the eyepiece assembly is connected to the objective lens assembly.

[0021] Compared with the prior art, the above technical solution has the following advantages:

[0022] The utility model provides an eyepiece assembly and optical equipment with adjustable diopter range and adjustable optical axis parallelism. Since the eccentric tube and the main eyepiece tube are split structures and the eccentric tube is threadedly connected in the main eyepiece tube, the eccentric tube can be rotated relative to the main eyepiece tube to adjust the phase of the eccentric tube to achieve the effect of parallelism of the optical axes. Rotating the hand wheel can drive the main eyepiece tube to move axially relative to the connecting piece, and at the same time, the eccentric tube installed in the main eyepiece tube and the eyepiece installed in the eccentric tube will also move axially, so the diopter range can be adjusted, thereby improving the application range of the eyepiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A schematic cross-sectional view of an eyepiece assembly with adjustable diopter range and adjustable optical axis parallelism provided in a specific embodiment of the utility model;

[0025] Figure 2 The present invention is a schematic diagram of an exploded structure of an eyepiece assembly with adjustable viewing range and adjustable optical axis parallelism provided in a specific implementation manner of the present invention.

[0026] The reference numerals are as follows:

[0027] 10 is a connecting piece, 11 is a connecting body, 111 is a guide groove, 12 is a connecting end, and 121 is a connecting stepped hole;

[0028] 20 is the main eyepiece barrel, 21 is the guide block, 22 is the annular protrusion, 23 is the multi-step hole, 231 is the left step hole, 232 is the middle step hole, and 233 is the right step hole;

[0029] 30 is an eccentric cylinder, 301 is a left stepped shaft, 302 is a middle stepped shaft, and 303 is a right stepped shaft;

[0030] 40 is a hand wheel, 50 is an eyepiece pressing ring, 60 is a hand wheel pressing ring, 70 is a pressing ring sealing ring, 80 is a sandwich sealing ring, and 90 is an installation sealing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Please refer to Figure 1 The eyepiece assembly with adjustable visual range and adjustable optical axis parallelism provided by the embodiment of the utility model comprises: a connecting member 10, a main eyepiece barrel 20, an eccentric barrel 30 and a hand wheel 40, wherein the connecting member 10 is a cylindrical structure, the connecting member 10 comprises a connecting body 11 and a connecting end 12, the connecting body 11 and the connecting end 12 are an integrated structure, the connecting end 12 is used to be connected to the main objective barrel of the objective lens assembly, and a guide groove 111 is provided on the side wall of the connecting body 11; the main eyepiece barrel 20 is sleeved It is arranged in the connecting body 11, and a guide block 21 extending out of the guide groove 111 is provided on the outer wall of the main eyepiece barrel 20, and an external thread is provided on the outer side of the guide block 21; the outer wall of the eccentric barrel 30 is threadedly connected to the inner wall of the main eyepiece barrel 20, the inner circle of the eccentric barrel 30 is eccentric relative to the outer circle of the eccentric barrel 30, and the interior of the eccentric barrel 30 is used to install the eyepiece; the handwheel 40 is rotatably connected to the connecting body 11, and the inner wall of the handwheel 40 is provided with an internal thread that cooperates with the external thread on the guide block 21. Since the eccentric cylinder 30 is threadedly connected to the main eyepiece barrel 20, the eccentric cylinder 30 can be rotated relative to the main eyepiece barrel 20 to adjust the phase of the eccentric cylinder 30 to achieve the effect of parallelism of the optical axes; rotating the handwheel 40 can drive the main eyepiece barrel 20 to move axially relative to the connecting piece 10, and at the same time, the eccentric cylinder 30 installed in the main eyepiece barrel 20 and the eyepiece installed in the eccentric cylinder 30 will also move axially, so the diopter range can be adjusted, thereby improving the applicability of the eyepiece.

[0033] In some embodiments, the inner wall of the main eyepiece barrel 20 is provided with a multi-stepped hole 23, and the aperture of the multi-stepped hole 23 increases in sequence from the end of the main eyepiece barrel 20 close to the main objective barrel to the end away from the main objective barrel; the eccentric barrel 30 is a multi-stepped shaft that cooperates with the multi-stepped hole 23. Figure 1 and Figure 2As shown, the inner side wall of the main eyepiece barrel 20 is provided with a left stepped hole 231, a middle stepped hole 232 and a right stepped hole 233, the inner diameter of each stepped hole increases from left to right, and the eccentric barrel 30 includes a left stepped shaft 301, a middle stepped shaft 302 and a right stepped shaft 303, and the outer diameters of the left stepped shaft 301, the middle stepped shaft 302 and the right stepped shaft 303 increase from left to right. When installing, the eccentric barrel 30 can be installed in the main eyepiece barrel 20 from right to left, so that the left stepped shaft 301 is matched with the left stepped hole 231, the middle stepped shaft 302 is matched with the middle stepped hole 232, and the right stepped shaft 303 is matched with the right stepped hole 233.

[0034] In some embodiments, a stepped shaft on the multi-step stepped shaft close to the main objective lens barrel is threadedly connected to a stepped hole in the multi-step stepped hole 23 close to the main objective lens barrel, such as Figure 1 As shown, the left stepped shaft 301 is threadedly connected to the left stepped hole 231. This structure can be regarded as a partial section of the eccentric tube 30 being threadedly connected to a partial section of the main eyepiece tube 20, which can reduce the threaded connection length of the two, thereby reducing the manufacturing difficulty and improving the convenience of assembly.

[0035] In some embodiments, the eyepiece assembly further includes an eyepiece pressing ring 50, which is threadedly connected to one end of the eccentric barrel 30 away from the main objective barrel, and the eyepiece can be pressed into the eccentric barrel 30 by the eyepiece pressing ring 50 to ensure the accuracy of the axial position of the eyepiece relative to the eccentric barrel 30. Further, in order to facilitate the screwing of the eyepiece pressing ring 50, an outer flange can be provided on the end of the eyepiece pressing ring 50 away from the eccentric barrel 30, the outer diameter of the outer flange is greater than the outer diameter of the body of the eyepiece pressing ring 50, and the outer flange corresponds to the end surface of the eccentric barrel 30, which can prevent the eyepiece pressing ring 50 from being screwed too deeply into the eccentric barrel 30 and damaging the eyepiece.

[0036] In some technical solutions, a sandwich sealing ring 80 is provided between the eccentric barrel 30 and the main eyepiece barrel 20. For example, a sealing groove can be provided on the outer peripheral side of the middle step shaft 302. The position of the sealing groove is preferably close to the left step shaft 301. The sandwich sealing ring 80 is installed in the sealing groove to achieve a sealing effect between the eccentric barrel 30 and the main eyepiece barrel 20. During the specific installation, the sandwich sealing ring 80 is first installed on the eccentric barrel 30, and then the whole is installed in the main eyepiece barrel 20. The friction force of the thread and the friction force of the sandwich sealing ring 80 are used to seal the eccentric barrel 30 and the main eyepiece barrel 20. And the friction positioning of the mating surface, the total friction between the eccentric tube 30 and the main eyepiece tube 20 is based on the fact that the eccentric tube 30 cannot be caused to rotate relative to the main eyepiece tube 20 due to accidental contact or other operations; a pressing ring sealing ring 70 is provided between the eyepiece pressing ring 50 and the eccentric tube 30, and specifically, a stepped hole can be provided inside the eccentric tube 30, and the pressing ring sealing ring 70 is provided between the stepped end face of the stepped hole and the end face of the eyepiece pressing ring 50, and the sealing effect between the eyepiece pressing ring 50 and the eccentric tube 30 can be achieved through the pressing ring sealing ring 70.

[0037] In some embodiments, the eyepiece assembly further includes a handwheel pressing ring 60, which is connected to an end of the connecting body 11 away from the connecting end 12, and the outer diameter of the connecting end 12 is larger than the outer diameter of the connecting body 11, that is, an end surface of the connecting end 12 away from the main objective lens barrel can axially limit the handwheel 40, and the handwheel pressing ring 60 can limit the axial position of the handwheel 40 installed on the connecting body 11, because after the handwheel pressing ring 60 is installed on the connecting body 11, the handwheel 40 can be restricted in the space between the connecting end 12 and the handwheel pressing ring 60. Specifically, the handwheel pressing ring 60 can be threadedly connected to the connecting body 11, or an annular groove can be provided on the outer periphery of the connecting body 11, and an annular convexity that cooperates with the annular groove can be provided on the inner side of the handwheel pressing ring 60. In addition, a retaining ring extending radially and outwardly can be provided on one end of the handwheel pressure ring 60 close to the handwheel 40. The outer diameter of the retaining ring is preferably not larger than the outer diameter of the handwheel 40. The retaining ring can increase the corresponding area between the end of the handwheel pressure ring 60 and the handwheel 40, thereby ensuring the limiting effect of the handwheel 40.

[0038] In some embodiments, an annular protrusion 22 is provided on the outer side wall of the end of the main eyepiece barrel 20 that is used to extend into the interior of the main objective lens barrel. Figure 1 and Figure 2 As described above, the annular protrusion 22 is arranged on the outer side wall of the left end of the main eyepiece barrel 20, and a mounting seal ring 90 is arranged on the outer peripheral side wall of the annular protrusion 22, and the mounting seal ring 90 can seal the annular gap between the annular protrusion 22 and the main objective barrel. In addition, the main objective barrel can be clamped by the annular protrusion 22 and the inner side of the connecting end 12, thereby ensuring the stability of the eyepiece assembly connected to the main objective barrel.

[0039] In some embodiments, a connecting step hole 121 is provided in the connecting end 12, an external thread is provided on the outer wall of the main objective lens barrel, and an internal thread is provided on the inner peripheral side wall of the connecting step hole 121. The connecting end 12 can be connected through the internal thread on its inner wall and the external thread on the main objective lens barrel until the stepped end surface of the connecting step hole 121 contacts the outer end surface of the main objective lens barrel. The accuracy of the axial position of the eyepiece assembly connected to the main objective lens barrel can be effectively guaranteed through the stepped end surface of the connecting step hole 121.

[0040] In some embodiments, the outer side of the main eyepiece barrel 20 is provided with a plurality of guide blocks 21 distributed along the circumferential direction, and the side wall of the connecting body 11 is provided with a plurality of guide grooves 111 corresponding to the guide blocks 21 one by one. The number of the guide blocks 21 and the guide grooves 111 can be selected according to actual needs. When the hand wheel 40 is turned, the main eyepiece barrel 20 can only move along its axial direction due to the limiting effect of the guide grooves 111 and the guide blocks 21. It is also possible to set a plurality of arc blocks distributed along its circumferential direction on the inner side of the hand wheel 40, the number of the arc blocks is the same as the number of the guide blocks 21, and the inner side surface of the arc blocks is provided with internal threads that cooperate with the external threads on the guide blocks 21.

[0041] The present invention also provides an optoelectronic device, including an objective lens assembly, and an eyepiece assembly with an adjustable visual range and an adjustable optical axis parallelism provided in any of the above embodiments, wherein the eyepiece assembly is connected to the objective lens assembly. For the beneficial effects of the optoelectronic device, reference may be made to the above eyepiece assembly, which will not be described in detail here.

[0042] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0043] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0044] The above is a detailed introduction to an eyepiece assembly and an optoelectronic device with an adjustable range of vision and an adjustable parallel optical axis provided by the utility model. This article uses specific examples to illustrate the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An eyepiece assembly with adjustable diopter range and adjustable optical axis parallelism, characterized in that: include: A connecting member (10) comprising a connecting body (11) and a connecting end (12), wherein the connecting end (12) is used to be connected to a main objective lens barrel of an objective lens assembly, and a guide groove (111) is provided on a side wall of the connecting body (11); A main eyepiece barrel (20) is sleeved in the connecting body (11), a guide block (21) extending out of the guide groove (111) is provided on the outer wall of the main eyepiece barrel (20), and an external thread is provided on the outer side of the guide block (21); An eccentric barrel (30), the outer wall of which is threadedly connected to the inner wall of the main eyepiece barrel (20); A hand wheel (40) is rotatably connected to the connecting body (11), and an inner side wall of the hand wheel (40) is provided with an internal thread that cooperates with the external thread on the guide block (21).

2. The eyepiece assembly according to claim 1, characterized in that: The inner side wall of the main eyepiece barrel (20) is provided with a multi-step stepped hole (23), the aperture of the multi-step stepped hole (23) increasing in sequence from an end of the main eyepiece barrel (20) close to the main objective barrel to an end away from the main objective barrel; the eccentric barrel (30) is a multi-step stepped shaft that cooperates with the multi-step stepped hole (23).

3. The eyepiece assembly according to claim 2, characterized in that: A stepped shaft on the multi-step stepped shaft close to the main objective lens barrel is threadedly connected to a stepped hole in the multi-step stepped hole (23) close to the main objective lens barrel.

4. The eyepiece assembly according to claim 3, characterized in that: The eyepiece assembly further comprises an eyepiece pressing ring (50), wherein the eyepiece pressing ring (50) is threadedly connected to an end of the eccentric tube (30) away from the main objective tube.

5. The eyepiece assembly according to claim 4, characterized in that: An interlayer sealing ring (80) is provided between the eccentric tube (30) and the main eyepiece tube (20), and a pressing ring sealing ring (70) is provided between the eyepiece pressing ring (50) and the eccentric tube (30).

6. The eyepiece assembly according to claim 1, characterized in that: The eyepiece assembly further comprises a handwheel pressing ring (60), wherein the handwheel pressing ring (60) is connected to an end of the connecting body (11) away from the connecting end (12), the outer diameter of the connecting end (12) being larger than the outer diameter of the connecting body (11), and the handwheel pressing ring (60) is used to limit the axial position of the handwheel (40) mounted on the connecting body (11).

7. The eyepiece assembly according to claim 6, characterized in that: An annular protrusion (22) is provided on the outer side wall of one end of the main eyepiece barrel (20) for extending into the interior of the main objective barrel, and a mounting seal ring (90) is provided on the outer peripheral side wall of the annular protrusion (22). The mounting seal ring (90) is used to seal the annular gap between the annular protrusion (22) and the main objective barrel.

8. The eyepiece assembly according to claim 1, characterized in that: A connecting stepped hole (121) is provided in the connecting end (12); an inner peripheral side wall of the connecting stepped hole (121) is provided with an internal thread for threaded connection with the outer side wall of the main objective lens barrel; and a stepped end surface of the connecting stepped hole (121) is used to contact the outer end surface of the main objective lens barrel.

9. The eyepiece assembly according to claim 1, characterized in that: The outer side of the main eyepiece barrel (20) is provided with a plurality of guide blocks (21) distributed along the circumferential direction, and the side wall of the connecting body (11) is provided with a plurality of guide grooves (111) corresponding one-to-one to the guide blocks (21).

10. An optoelectronic device, comprising an objective lens assembly, characterized in that: It also comprises an eyepiece assembly with adjustable visual range and adjustable optical axis parallelism as described in any one of claims 1 to 9, wherein the eyepiece assembly is connected to the objective lens assembly.

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