Optical fusion parallax adjusting structure and optical equipment

Abstract

The invention provides an optical fusion parallax adjusting structure and optical equipment, the optical fusion parallax adjusting structure comprises a parallax adjusting ring, the parallax adjusting ring comprises an adjusting part and a connecting part, at least part of the connecting part is arranged in an inner cavity of an image tube shell, the adjusting part is arranged outside the inner cavity, and the adjusting part is fixedly connected to the connecting part; the image tube limiting ring is arranged on the front end face, facing the parallax adjusting ring, of the image tube, and the image tube limiting ring abuts against the connecting part; the elastic adjusting ring is arranged in the adjusting ring mounting groove of the image tube shell and elastically abuts against the rear end face of the parallax adjusting ring; the adjusting hand wheel is arranged on the front end shaft diameter of the image tube shell in a sleeving mode and abuts against the parallax adjusting ring, and the adjusting hand wheel is used for moving towards or away from the image tube barrel in the axial direction under the action of external force so as to adjust the axial position between the imaging face of the image tube and the prism. The image tube shell does not need to be disassembled, parallax adjustment can be achieved outside the image tube shell, and the parallax adjustment precision and adjustment efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of optical devices, and in particular to an optical fusion parallax adjustment structure and an optical device. Background Art

[0002] In optical equipment, parallax adjustment is crucial to image quality. Parallax refers to the image shift caused by the positional misalignment between the image tube imaging plane and the prism when an object is imaged through an optical system. Therefore, parallax adjustment is necessary.

[0003] Currently, the parallax adjustment solution on the market is usually achieved by adjusting the distance between the OLED screen and the prism. This method requires disassembly for adjustment, which is inefficient and inconvenient to operate. Figure 1 As shown, the conventional adjustment method is to fix the OLED screen at a position perpendicular to the eyepiece lens through a bracket at the rear end of the eyepiece, and adjust the distance between the screen and the prism by adding a gasket under the bracket to achieve the purpose of adjusting the parallax.

[0004] The above-mentioned parallax adjustment solution requires disassembling the eyepiece housing and operating from the inside, which has poor convenience and operability, and may require repeated adjustments to achieve the best effect. The adjustment efficiency is low and the accuracy is poor. Summary of the Invention

[0005] The present application provides an optical fusion parallax adjustment structure, which can realize parallax adjustment outside the image tube housing, thereby improving the parallax adjustment accuracy and adjustment efficiency.

[0006] The present application also provides an optical device with high parallax adjustment accuracy, clear imaging and good imaging quality.

[0007] On the one hand, an embodiment of the present application provides an optical fusion parallax adjustment structure, including:

[0008] A parallax adjustment ring, comprising an adjustment portion and a connection portion, wherein at least a portion of the connection portion is disposed in the inner cavity of the image tube housing, the adjustment portion is disposed outside the inner cavity, and the adjustment portion is fixedly connected to the connection portion;

[0009] An image tube limiting ring is provided on the front end surface of the image tube facing the parallax adjustment ring, and the image tube limiting ring abuts against the connecting portion;

[0010] An elastic adjustment ring, which is arranged in the adjustment ring mounting groove of the image tube housing and elastically abuts against the rear end surface of the parallax adjustment ring;

[0011] The adjusting hand wheel is sleeved on the front end shaft diameter of the image tube housing and abuts against the parallax adjustment ring. The adjusting hand wheel is used to move axially toward or away from the image tube tube under the action of external force to adjust the axial position between the imaging surface of the image tube and the prism.

[0012] In some embodiments, the parallax adjustment ring, the image tube limiting ring, the image tube, the elastic adjustment ring and the adjustment hand wheel are coaxially distributed along the axial direction.

[0013] In some embodiments, the outer peripheral surface of the front end shaft diameter of the image tube housing is provided with an external thread, the adjusting hand wheel is provided with an internal thread, and the adjusting hand wheel is threadedly connected to the front end shaft diameter.

[0014] In some embodiments, the end surface of the front end shaft diameter is provided with a plurality of circumferentially distributed plug holes, and the connecting portion includes a plurality of circumferentially distributed plug posts, and each of the plug posts is plugged in and matched with each of the plug holes in a one-to-one correspondence.

[0015] In some embodiments, the elastic adjustment ring includes an adjustment member body, at least one crest portion and at least one trough portion, the adjustment member body is wavy, and the crest portion and the trough portion are arranged on a side of the adjustment member body facing the image tube.

[0016] In some embodiments, the peak portions and the trough portions are spaced apart and alternately arranged.

[0017] In some embodiments, the plug-in column is provided with a sealing groove and further includes a sealing ring sleeved in the sealing groove, wherein the sealing ring is used to seal the gap between the plug-in column and the plug-in hole.

[0018] In some embodiments, an anti-slip structure is further included on the outer peripheral surface of the adjusting hand wheel.

[0019] On the other hand, an embodiment of the present application further provides an optical device, comprising:

[0020] An image tube housing, wherein the image tube housing is provided with an inner cavity;

[0021] An image tube and a prism are arranged in the inner cavity;

[0022] The optical fusion parallax adjustment structure provided in any of the above embodiments is at least partially disposed inside the image tube housing and is used to adjust the axial position between the imaging surface of the image tube and the prism.

[0023] In some embodiments, the image tube housing includes an image tube barrel and a rear shell, the image tube barrel is fixedly connected to the rear shell to form the inner cavity, and the prism is disposed on the rear shell.

[0024] In the embodiment of the present application, by operating the adjustment handwheel, the adjustment handwheel drives the parallax adjustment ring to translate forward and backward along the axis, thereby achieving the effect of adjusting the parallax. This solution does not require disassembling the device to adjust the parallax. After the device is fully assembled and powered on, the parallax can be adjusted by rotating the adjustment handwheel. Without repeated adjustments, the parallax can be adjusted to the minimum state more quickly and accurately while powered on, thereby improving the accuracy and efficiency of parallax adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0026] Figure 1 An exploded diagram of an optical fusion parallax adjustment structure provided in some embodiments of the present application;

[0027] Figure 2 A cross-sectional view of an optical fusion parallax adjustment structure provided in some embodiments of the present application;

[0028] Figure 3 This is a schematic structural diagram of the elastic adjustment ring in the optical fusion parallax adjustment structure provided in some embodiments of the present application.

[0029] The reference numerals are as follows:

[0030] 1-Adjustment hand wheel; 2-Parallax adjustment ring; 3-Image tube limit ring; 4-Image tube; 5-Elastic adjustment ring; 6-Image tube tube; 7-Back shell; 8-Prism;

[0031] 21-adjusting part; 22-connecting part; 51-adjusting part body; 52-peak part; 53-trough part; 61-front end shaft diameter; 62-plug-in hole. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. The terms "first" and "second" in this application are used to distinguish different objects, not to describe a specific order or a primary-secondary relationship.

[0034] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0036] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0037] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0038] The term "plurality" used in this application refers to two or more (including two).

[0039] Please refer to Figure 1 and Figure 2 , Figure 1 An exploded view of the optical fusion parallax adjustment structure provided in this application; Figure 2 A cross-sectional view of an optical fusion parallax adjustment structure provided in some embodiments of the present application.

[0040] The present application provides an optical fusion parallax adjustment structure, comprising a parallax adjustment ring 2, an image tube limiting ring 3, an elastic adjustment ring 5, and an adjustment handwheel 1. The parallax adjustment ring 2 comprises an adjustment portion 21 and a connecting portion 22, wherein at least a portion of the connecting portion 22 is disposed within the inner cavity of the image tube housing, the adjustment portion 21 is disposed outside the inner cavity, and the adjustment portion 21 and the connecting portion 22 are fixedly connected. The image tube limiting ring 3 is disposed on the front end surface of the image tube 4 facing the parallax adjustment ring, and the image tube limiting ring 3 abuts against the connecting portion 22. The elastic adjustment ring 5 is disposed in the adjustment ring mounting groove of the image tube housing and elastically abuts against the rear end surface of the parallax adjustment ring. The adjustment handwheel 1 is sleeved on the front end shaft diameter 61 of the image tube housing and abuts against the parallax adjustment ring 2.

[0041] The parallax adjustment ring 2 has an annular adjustment portion 21, with a connecting portion 22 fixedly connected to it. The connection can be rigidly secured to ensure smooth force transmission. The connecting portion 22 extends into the inner cavity of the image tube housing. Under the compressive force of the adjustment handwheel 1 and the elastic force of the elastic adjustment ring 5, the parallax adjustment ring 2 maintains contact with the image tube stop ring 3. The adjustment portion 21 is exposed on the exterior of the image tube housing and in contact with the adjustment handwheel 1. The parallax adjustment ring 2 transmits the handwheel's driving force to propel the image tube 4 axially.

[0042] The image tube stop ring 3 is positioned on the front end of the image tube 4, that is, on the side of the image tube facing the parallax adjustment ring 2. The image tube stop ring 3 abuts the connection portion 22 of the parallax adjustment ring 2 to receive or apply thrust to the parallax adjustment ring 2. The image tube stop ring 3 works in conjunction with the elastic adjustment ring 5 to clamp the image tube 4 at its front and rear ends. The image tube stop ring 3 and the image tube can be fixedly or flexibly connected. To prevent deflection between the two, a positioning groove is provided on the front end of the image tube 4, and the image tube stop ring 3 is equipped with a positioning claw that engages in the positioning groove to prevent deflection.

[0043] The elastic adjustment ring 5 can be fixedly mounted within the inner cavity of the image tube housing. The elastic adjustment ring 5 can be a hard elastic member, such as a steel ring made of spring steel. It utilizes its own elasticity to provide an axial preload. Alternatively, the preload can be applied via the adjustment portion 21. The elastic adjustment ring 5 provides an axial preload, eliminating thread play and ensuring smooth, non-shaky rotation of the adjustment handwheel 1. The elastic adjustment ring 5 forms a bidirectional clamping structure with the image tube stop ring 3, preventing axial movement of the image tube 4.

[0044] The adjusting hand wheel 1 is sleeved on the front end shaft diameter 61 of the image tube housing, and the two are rotatably connected, such as by threaded connection, bearing support rotation connection, snap ring rotation connection, or snap-on rotation connection. The adjusting hand wheel 1 abuts against the adjusting portion 21 of the parallax adjustment ring 2.

[0045] The adjustment portion 21 of the parallax adjustment ring 2, the image tube stop ring 3, the elastic adjustment ring 5, and the adjustment handwheel 1 work together to fine-tune the position of the image tube 4. The adjustment handwheel 1 is designed to move axially toward or away from the image tube barrel 6 under the action of an external force to adjust the axial position between the imaging plane of the image tube 4 and the prism 8. Rotating the adjustment handwheel 1 causes axial displacement, pushing the parallax adjustment ring 2 forward or backward. The clamping force can be adjusted by setting the pre-compression of the elastic adjustment ring 5.

[0046] For example, rotating the adjustment handle 1 counterclockwise causes it to rotate outward, moving it axially backward, and releasing pressure on the parallax adjustment ring 2. The elastic adjustment ring 5 then pushes the image tube stop ring 3, causing the image tube to translate toward the objective lens, moving the imaging plane away from the prism 8 to compensate for long-range parallax. Rotating the adjustment handle 1 clockwise causes it to move forward axially, pushing the parallax adjustment ring 2 forward. The parallax adjustment ring 2 pushes the image tube stop ring 3, which in turn pushes the image tube 4 toward the eyepiece, bringing the imaging plane closer to the prism 8 to compensate for short-range parallax.

[0047] The present application has a bidirectional elastic pre-tightening structure, and the elastic adjustment ring 5 and the image tube limiting ring 3 form a bidirectional pressing structure for the image tube 4, which can eliminate the gap and improve the adjustment accuracy.

[0048] The optical fusion parallax adjustment structure provided in this application allows parallax adjustment by rotating the adjustment handwheel 1 without disassembling the device, thus improving operational efficiency. After the entire device is assembled, parallax adjustment can be performed while powered on, eliminating the need for repeated adjustments. This facilitates operation and improves adjustment efficiency. Furthermore, the components of this application are coaxially distributed along the axial direction, resulting in a compact structure, small footprint, and high adjustment precision.

[0049] In one specific embodiment, the parallax adjustment ring 2, image tube stop ring 3, image tube 4, elastic adjustment ring 5, and adjustment handwheel 1 are coaxially arranged. This coaxial arrangement of these components ensures linear consistency in force transmission and displacement during adjustment, thereby ensuring axial movement of the image tube 4 and thus ensuring parallax adjustment accuracy.

[0050] In one specific embodiment, the end surface of the front shaft diameter 61 is provided with a plurality of circumferentially distributed insertion holes 62. The connecting portion 22 includes a plurality of circumferentially distributed insertion posts, each of which engages with each insertion hole 62 in a one-to-one correspondence. In this embodiment, the engagement of the insertion posts with the insertion holes 62 forms a non-fixed connection, allowing slight axial displacement but restricting circumferential relative rotation. At the same time, the image tube 4 can move axially within the engagement range, achieving position adjustment.

[0051] Furthermore, the outer circumference of the front end shaft diameter 61 of the image tube housing is provided with external threads, and the adjustment handwheel 1 is provided with internal threads. The adjustment handwheel 1 is threadedly connected to the front end shaft diameter 61. The internal threads of the adjustment handwheel 1 mesh with the external threads of the image tube housing, converting rotational motion into axial movement of the image tube 4. When the adjustment handwheel 1 is rotated, the adjustment handwheel 1 propels the image tube 4 axially forward or backward through the threaded transmission, resulting in more precise adjustment and higher accuracy.

[0052] like Figure 3 In a specific embodiment, the elastic adjustment ring includes an adjustment member body 51, at least one crest portion 52, and at least one trough portion 53. The adjustment member body 51 is wavy, and the crest portion 52 and the trough portion 53 are arranged on the side of the adjustment member body 51 facing the image tube 4.

[0053] The crests 52 are the highest points of the wave-like structure, directly contacting the image tube 4. The troughs 53 are the lowest points of the wave-like structure, alternating with the crests 52 to form an elastic support structure. The crests 52 and troughs 53 are located on the side of the adjustment member 51 facing the image tube, while the other side is fixed to the image tube barrel 6 or rear housing 7 of the image tube housing. The elastic adjustment ring provides multiple contact points for improved focusing stability.

[0054] Optionally, the crests 52 and the troughs 53 are spaced apart and alternately arranged, and a smooth transition is made between the crests 52 and the troughs 53 through a curved surface to form a wave curved surface, thereby achieving linear adjustment, ensuring adjustment accuracy, and being able to disperse stress to ensure smooth movement of the image tube 4.

[0055] In order to ensure the airtightness of the connection between the parallax adjustment ring 2 and the image tube housing, the plug-in column is provided with a sealing groove and also includes a sealing ring sleeved in the sealing groove. The sealing ring is used to seal the gap between the plug-in column and the plug-in hole 62 to ensure the airtight connection between the two.

[0056] In order to increase the friction of hand grip, an anti-slip structure can be set on the outer surface of the adjustment hand wheel 1. The anti-slip structure can be anti-slip lines, anti-slip protrusions, or an anti-slip cover can be covered on the outside of the adjustment hand wheel 1 to prevent the hand from slipping.

[0057] Continue to refer Figure 1 and Figure 2 In addition, an embodiment of the present application further provides an optical device, comprising an image tube housing, an image tube 4, a prism 8, and an optical fusion parallax adjustment structure, wherein the image tube housing is provided with an inner cavity, the image tube and the prism 8 are fixedly mounted in the inner cavity, at least a portion of the optical fusion parallax adjustment structure is disposed inside the image tube housing and is connected to the image tube 4, and the axial position between the imaging surface of the image tube 4 and the prism 8 can be adjusted through the optical fusion parallax adjustment structure.

[0058] The optical device provided in the embodiment of the present application has high parallax adjustment accuracy, clear imaging, and good imaging quality.

[0059] In a specific embodiment, the image tube housing includes an image tube barrel 6 and a rear shell 7 . The image tube barrel 6 is fixedly connected to the rear shell 7 to form an inner cavity. The prism 8 is disposed on the rear shell 7 .

[0060] During installation, first, the parallax adjustment ring 2 is installed on the front end axial diameter 61 of the image tube tube 6 through the various insertion holes 62 on the image tube tube 6. Then, the adjusting handwheel 1 is threadedly engaged with the image tube tube 6 and screwed onto the image tube tube 6. Next, the image tube limiting ring 3 is installed through the mounting groove inside the image tube tube 6 to a position contacting the parallax adjustment ring 2, and then the image tube 4 is installed. Finally, the elastic adjustment ring 5 is installed in the slot of the rear housing 7 and assembled together with the rear housing 7 to the image tube tube 6. The rear housing 7 is fixedly connected to the image tube tube 6 via four screws. At this point, the elastic adjustment ring 5 and the image tube limiting ring 3 can clamp the image tube 4. By screwing the adjusting handwheel 1 in or out, the parallax adjustment ring 2 is driven to translate axially, achieving the forward and backward translation of the image tube 4, thereby achieving the effect of adjusting the parallax.

[0061] The above is a detailed introduction to the optical fusion parallax adjustment structure and optical device provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. An optical fusion parallax adjustment structure, characterized in that: include: A parallax adjustment ring (2), the parallax adjustment ring (2) comprising an adjustment portion (21) and a connection portion (22), at least a portion of the connection portion (22) being disposed in an inner cavity of an image tube housing, the adjustment portion (21) being disposed outside the inner cavity, and the adjustment portion (21) being fixedly connected to the connection portion (22); An image tube limiting ring (3) is arranged on the front end surface of the image tube (4) facing the parallax adjustment ring (2), and the image tube limiting ring (3) abuts against the connecting portion (22); An elastic adjustment ring (5), the elastic adjustment ring (5) being arranged in the adjustment ring mounting groove of the image tube housing and elastically abutting against the rear end surface of the parallax adjustment ring (2); An adjusting hand wheel (1) is sleeved on the front end shaft diameter (61) of the image tube housing and abuts against the parallax adjustment ring (2). The adjusting hand wheel (1) is used to move axially toward or away from the image tube barrel (6) under the action of an external force to adjust the axial position between the imaging surface of the image tube (4) and the prism (8).

2. The optical fusion parallax adjustment structure according to claim 1, characterized in that: The parallax adjustment ring (2), the image tube limiting ring (3), the image tube (4), the elastic adjustment ring (5) and the adjustment hand wheel (1) are coaxially distributed along the axial direction.

3. The optical fusion parallax adjustment structure according to claim 2, characterized in that: The outer peripheral surface of the front end shaft diameter (61) of the image tube housing is provided with an external thread, the adjusting hand wheel (1) is provided with an internal thread, and the adjusting hand wheel (1) is threadedly connected to the front end shaft diameter (61).

4. The optical fusion parallax adjustment structure according to claim 3, characterized in that: The end surface of the front end shaft diameter (61) is provided with a plurality of circumferentially distributed plug holes (62), and the connecting portion (22) includes a plurality of circumferentially distributed plug posts, each of the plug posts being plugged in and matched with each of the plug holes (62) in a one-to-one correspondence.

5. The optical fusion parallax adjustment structure according to any one of claims 1 to 4, characterized in that: The elastic adjustment ring (5) comprises an adjustment member body (51), at least one crest portion (52) and at least one trough portion (53); the adjustment member body (51) is wavy, and the crest portion (52) and the trough portion (53) are arranged on a side of the adjustment member body (51) facing the image tube (4).

6. The optical fusion parallax adjustment structure according to claim 5, characterized in that: The crest portions (52) and the trough portions (53) are spaced and arranged alternately.

7. The optical fusion parallax adjustment structure according to claim 4, characterized in that: The plug-in column is provided with a sealing groove and also includes a sealing ring sleeved in the sealing groove, and the sealing ring is used to seal the gap between the plug-in column and the plug-in hole (62).

8. The optical fusion parallax adjustment structure according to claim 1, characterized in that: It also includes an anti-slip structure provided on the outer peripheral surface of the adjusting hand wheel (1).

9. An optical device, characterized in that: include: An image tube housing, wherein the image tube housing is provided with an inner cavity; An image tube (4) and a prism (8) are arranged in the inner cavity; The optical fusion parallax adjustment structure according to any one of claims 1 to 8, wherein at least a portion of the optical fusion parallax adjustment structure is arranged inside the image tube housing and is used to adjust the axial position between the imaging surface of the image tube (4) and the prism (8).

10. The optical device according to claim 9, wherein The image tube housing comprises an image tube barrel (6) and a rear shell (7); the image tube barrel (6) is fixedly connected to the rear shell (7) to form the inner cavity; and the prism (8) is arranged on the rear shell (7).

Images