CN220170073U - Division image conversion zoom structure with parallax correction function - Google Patents
Division image conversion zoom structure with parallax correction function Download PDFInfo
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- CN220170073U CN220170073U CN202321978797.3U CN202321978797U CN220170073U CN 220170073 U CN220170073 U CN 220170073U CN 202321978797 U CN202321978797 U CN 202321978797U CN 220170073 U CN220170073 U CN 220170073U
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- assembly
- dividing
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- 238000012937 correction Methods 0.000 title claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 16
- 239000011295 pitch Substances 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 238000012546 transfer Methods 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Abstract
The utility model discloses a dividing image conversion zoom structure with parallax correction function, which comprises a dividing assembly, a zoom image conversion assembly and a dividing joint; the dividing assembly and the zoom image rotating assembly are coaxially and adjacently arranged along the optical axis direction, the dividing joint is sleeved on the outer sides of the adjacent ends of the dividing assembly and the zoom image rotating assembly, the dividing joint is connected with the dividing assembly through first threads, the dividing joint is connected with the zoom image rotating assembly through second threads, the directions of the first threads and the second threads are the same, and the pitches of the first threads and the second threads are different; the screw joint surface of the first screw thread and the second screw thread is provided with a plurality of set screws along the circumference. The structure realizes the accurate adjustment of parallax, and the optical system does not rotate in the adjustment process, so that the optical element is prevented from being polluted.
Description
Technical Field
The utility model relates to the field of optical sighting telescope, in particular to a dividing and image-converting zoom structure with parallax correction function.
Background
The field of optical sighting telescope is rapidly developed nowadays, and the parallax correction structure of the sighting telescope is an important technology of the optical sighting telescope and determines the performance of a product. The division correction mechanisms of the white light sighting telescope in the current market are all division plate correction modes, and because the division plates have directionality, the parallax can only be reduced to a certain value during correction, and the parallax is difficult to completely eliminate. And the common division correction operation is complicated, and dirty points and dust are easy to generate.
Disclosure of Invention
The utility model aims to provide a division image zoom structure with a parallax correction function, so as to realize accurate correction of division.
In order to solve the technical problems, the utility model provides a technical scheme that: a dividing image conversion zoom structure with parallax correction function comprises a dividing assembly, a zoom image conversion assembly and a dividing joint; the dividing assembly and the zoom image rotating assembly are coaxially and adjacently arranged along the optical axis direction, the dividing joint is sleeved on the outer sides of the adjacent ends of the dividing assembly and the zoom image rotating assembly, the dividing joint is connected with the dividing assembly through first threads, the dividing joint is connected with the zoom image rotating assembly through second threads, the directions of the first threads and the second threads are the same, and the pitches of the first threads and the second threads are different; the screw joint surface of the first screw thread and the second screw thread is provided with a plurality of set screws along the circumference.
According to the scheme, the zoom image-transferring assembly comprises a steering lens tube and a zoom tube, and the zoom tube is sleeved outside the steering lens tube; a first field lens assembly is fixed at one end of the steering lens tube, which is close to the light incident direction, a second field lens assembly is fixed at one end of the steering lens tube, which is close to the light emergent direction, and a linear groove is arranged on the side wall of the steering lens tube; the image conversion lens comprises a zoom tube, a first curve zoom groove, a second curve zoom groove, a first sliding sleeve screw, a second sliding sleeve screw, a first guide sleeve and a second guide sleeve, wherein the first curve zoom groove and the second curve zoom groove are formed in the side wall of the zoom tube, the first lens assembly and the second lens assembly are arranged in the image conversion lens tube, the first sliding sleeve screw is fixed on the side wall of the first lens assembly, the second sliding sleeve screw is fixed on the side wall of the second lens assembly, the first guide sleeve and the second guide sleeve are respectively sleeved at the outer ends of the first sliding sleeve screw and the second sliding sleeve screw, and pass through the linear groove and are respectively located in the first curve zoom groove and the second curve zoom groove.
According to the scheme, the first field lens assembly comprises a first field lens, a first field lens connector and a first field lens pressing ring; a step groove is formed in one end, close to the incidence direction, of the inner wall of the steering lens tube, and the first field lens is arranged in the step groove; the inner wall of the first field lens connector is in threaded connection with the outer wall of the image transfer lens tube, the first field lens pressing ring used for fixing the first field lens is further in threaded connection with the inner wall of the first field lens connector, and the outer wall of the first field lens connector is in threaded connection with the reticle connector through a second thread.
According to the scheme, one end of the steering lens tube, which is close to the light emergent direction, is provided with a boss, and the second field lens assembly is arranged in the boss; the second field lens assembly comprises a second field lens frame, a second field lens and a second field lens pressing ring, wherein the outer wall of the second field lens frame is in threaded connection with the inner wall of the boss, and the second field lens is arranged in the second field lens frame and is fixed by the second field lens pressing ring in threaded connection with the second field lens frame.
According to the scheme, the second field lens assembly further comprises a diaphragm arranged in the second field lens frame, and the diaphragm is in threaded connection with the second field lens frame and is arranged at one end close to the emergent direction of the light.
According to the scheme, a gasket is arranged between the boss of the steering lens tube and the end part of the zoom tube.
According to the scheme, the reticle assembly comprises a reticle frame, a reticle and a reticle clamping ring; the outer wall of the reticle frame is connected with the reticle joint through first threads, and the reticle is arranged in the reticle frame and is fixed by a reticle pressing ring in threaded connection with the reticle frame.
According to the scheme, the outer wall of one end of the zoom tube, which is close to the light emergent direction, is connected with the zoom hand wheel.
According to the scheme, the light-emitting diode is fixed on the outer wall of the reticle frame.
According to the scheme, a plurality of notches are uniformly distributed on the side wall of the dividing joint along the circumferential direction.
The beneficial effects of the utility model are as follows: the first threads and the second threads which are identical in set direction and different in thread pitch are used for enabling the zoom image rotating assembly and the dividing assembly to move in the same direction along the optical axis when the dividing joint is rotated, the moving distance is different, the distance difference generated when the dividing assembly and the zoom image rotating assembly move is determined by the rotation quantity of the dividing joint and the thread pitch difference between the first threads and the second threads, the fine degree of parallax correction can be adjusted through adjusting the thread pitch difference, and the parallax correction precision can be enabled to exceed the minimum parallax recognized by human eyes. During adjustment, only the external dividing joint rotates, and the zoom image transfer assembly and the dividing assembly, which are internally provided with lenses, do not rotate and only perform axial translation movement, so that the lenses are prevented from being stained with dirt or dust due to threaded rotation, and the assembly efficiency of the sighting telescope is improved.
Drawings
Fig. 1 is an exploded view of a division-rotation image magnification-varying structure with parallax correction according to an embodiment of the present utility model;
fig. 2 is a partial cross-sectional view of a division-rotation image magnification-varying structure with parallax correction function according to an embodiment of the present utility model;
figure 3 is an expanded view of a zoom tube according to an embodiment of the present utility model.
In the figure: 1-reticle joint, 2-reticle clamping ring, 3-reticle, 4-reticle frame, 5-first field lens clamping ring, 6-first field lens, 7-first field lens joint, 8-relay lens clamping ring, 9-first lens, 10-first lens frame, 11-second lens frame, 12-second lens, 13-zoom tube, 1301-first curve zoom groove, 1302-second curve zoom groove, 14-relay lens tube, 15-second field lens frame, 16-second field lens, 17-second field lens clamping ring, 18-diaphragm, 19-guide sleeve, 20-slide sleeve screw, 21-set screw, 22-light emitting diode, 23-gasket.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Referring to fig. 1 to 3, a division image conversion zoom structure with parallax correction function includes a division component, a zoom image conversion component and a division joint 1; the dividing assembly and the variable magnification image rotating assembly are coaxially and adjacently arranged along the optical axis direction, the dividing joint 1 is sleeved on the outer sides of the adjacent ends of the dividing assembly and the variable magnification image rotating assembly, the dividing joint 1 is connected with the dividing assembly through a first thread (the thread pitch is 0.75mm in the embodiment), the dividing joint 1 is connected with the variable magnification image rotating assembly through a second thread (the thread pitch is 0.5mm in the embodiment), and the directions of the first thread and the second thread are the same and the thread pitches are different; the screw joint surfaces of the first screw thread and the second screw thread are provided with a plurality of set screws 21 along the circumferential direction (8 set screws 21 in the embodiment are used for fixing the reticle assembly and the reticle joint 1, and the other 4 set screws are used for fixing the zoom image transfer assembly and the reticle joint 1);
the dividing image conversion zoom structure is arranged in the optical sighting telescope and is used for displaying dividing images and converting images into zoom, the external objective lens is arranged at the left side of the structure, and the ocular lens is arranged at the right side (relative to the direction shown in fig. 2) of the structure; when parallax correction is carried out, the dividing assembly is fixed through a tool, so that the dividing direction is kept unchanged, and meanwhile, the dividing joint 1 is rotated; when the parallax correction is carried out by the dividing and image converting zoom structure, the dividing assembly is axially moved by utilizing the relative displacement generated by the pitch difference of the first thread and the second thread, and finally the dividing surface of the dividing assembly is overlapped with the theoretical image surface, so that the parallax is corrected by the method, and the parallax correction precision is improved without upper limit;
the dividing and image changing zoom structure adopts a structure of prepositioning division, so that the dividing plane can be changed along with the change of magnification in the zoom process, and the zoom error is reduced;
when designing, enough space is reserved between the reticle and the lens groups on the front side and the rear side for parallax adjustment of subsequent assembly;
the existing correction mode corrects through the threaded cooperation of the reticle frame and the image transfer lens tube, and the reticle is adjusted through axial movement of rotating at least 1/4 pitch (1-time pitch in most cases) due to the direction requirement of the reticle, and the correction accuracy is lower because the thread pitch is influenced by actual processing conditions. The dividing image conversion zoom structure of the embodiment enables the image conversion lens to axially move through relative displacement generated by the screw pitch difference, so that parallax is corrected, and parallax correction accuracy is improved without upper limit;
when parallax correction is carried out, the optical system does not carry out rotary motion, the problems that dirty points, dust and the like are generated on glass due to screw rotation are avoided, and the assembly efficiency of the sighting telescope is improved to a great extent.
Further, the zoom and image conversion assembly comprises a steering lens tube 14 and a zoom tube 13, and the zoom tube 13 is sleeved outside the steering lens tube 14; a first field lens assembly is fixed at one end of the steering lens tube 14 close to the light incident direction, a second field lens assembly is fixed at one end of the steering lens tube 14 close to the light emergent direction, and a linear groove is formed in the side wall of the steering lens tube 14; a first curve zoom groove 1301 and a second curve zoom groove 1302 are formed in the side wall of the zoom tube 13, a first lens component and a second lens component are arranged in the steering lens tube 14, a first sliding sleeve screw is fixed on the side wall of the first lens component, a second sliding sleeve screw is fixed on the side wall of the second lens component, a first guide sleeve and a second guide sleeve (the first sliding sleeve screw and the second sliding sleeve screw are respectively sleeved at the outer side ends of the first sliding sleeve screw and the second sliding sleeve screw are respectively sliding sleeve screws 20, the first guide sleeve and the second guide sleeve are respectively guide sleeve 19), and the first guide sleeve and the second guide sleeve penetrate through the straight line groove and are respectively positioned in the first curve zoom groove 1301 and the second curve zoom groove 1302;
the first lens assembly includes a first lens frame 10 and a first lens 9 fixed in the first lens frame 10; the second lens assembly includes a second lens frame 15 and a second lens 16 fixed in the second lens frame 15;
when the lens is used, the zoom tube 13 is rotated to drive the first sliding sleeve screw and the second sliding sleeve screw to move in the first curve zoom groove 1301 and the second curve zoom groove 1302 respectively, so as to drive the first lens component and the second lens component to horizontally move in the direction of the optical axis in the steering lens tube 14.
Further, the first field lens assembly comprises a first field lens 6, a first field lens joint 7 and a first field lens clamping ring 5; a stepped groove is formed in one end, close to the incidence direction, of the inner wall of the steering lens tube 14, and the first field lens 6 is arranged in the stepped groove; the inner wall of the first field lens joint 7 is in threaded connection with the outer wall of the image transfer lens tube 14, the first field lens pressing ring 5 for fixing the first field lens 6 is further in threaded connection with the inner wall of the first field lens joint 7, and the outer wall of the first field lens joint 7 is in threaded connection with the dividing joint 1 through a second thread.
Further, a boss is arranged at one end of the steering lens tube 14 close to the light emergent direction, and the second field lens assembly is arranged in the boss; the second field lens assembly comprises a second field lens frame 15, a second field lens 16 and a second field lens pressing ring 17, wherein the outer wall of the second field lens frame 15 is in threaded connection with the inner wall of the boss, and the second field lens 16 is arranged in the second field lens frame 15 and is fixed by the second field lens pressing ring 17 in threaded connection with the second field lens frame 15.
Further, the second field lens assembly further includes a diaphragm 18 disposed in the second field lens frame 15, and the diaphragm 18 is in threaded connection with the second field lens frame 15 and disposed near one end of the light emitting direction.
Further, a washer 23 is provided between the boss of the steering lens tube 14 and the end of the magnification-varying tube 13.
Further, the reticle assembly comprises a reticle frame 4, a reticle 3 and a reticle clamping ring 2; the outer wall of the reticle frame 4 is connected with the reticle joint 1 through first threads, and the reticle 3 is arranged in the reticle frame 4 and is fixed by a reticle clamping ring 2 in threaded connection with the reticle frame 4; be provided with the spanner groove on the reticle frame 4, when carrying out parallax adjustment, frock and spanner groove joint, and then fix the division subassembly and avoid its rotation.
Further, the outer wall of the variable-magnification tube 13, which is close to one end of the light emergent direction, is fixedly connected with a variable-magnification hand wheel, and a hole for installing the variable-magnification hand wheel is formed in the variable-magnification tube 13.
Further, a light emitting diode 22 is fixed on the outer wall of the reticle frame 4; the outer wall of the reticle frame 4 is provided with a circular hole for fixing the light emitting diode 22, and the light emitting diode 22 is used for lighting the reticle in a dark place by using a sighting telescope.
Further, a plurality of notches (4 notches are provided in the present embodiment) are uniformly distributed on the side wall of the scribe head 1 in the circumferential direction for mounting the light emitting diode 22.
The embodiment has simple structure and high stability, and the gold workpieces are all revolved bodies, so that the processing and the assembly are easy.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. The utility model provides a division transformation image zoom structure that possesses parallax correction function which characterized in that: comprises a dividing component, a zoom image transferring component and a dividing joint; the dividing assembly and the zoom image rotating assembly are coaxially and adjacently arranged along the optical axis direction, the dividing joint is sleeved on the outer sides of the adjacent ends of the dividing assembly and the zoom image rotating assembly, the dividing joint is connected with the dividing assembly through first threads, the dividing joint is connected with the zoom image rotating assembly through second threads, the directions of the first threads and the second threads are the same, and the pitches of the first threads and the second threads are different; the screw joint surface of the first screw thread and the second screw thread is provided with a plurality of set screws along the circumference.
2. The division-rotation image magnification-varying structure with parallax correction function according to claim 1, wherein: the zoom image-changing assembly comprises a steering lens tube and a zoom tube, and the zoom tube is sleeved outside the steering lens tube; a first field lens assembly is fixed at one end of the steering lens tube, which is close to the light incident direction, a second field lens assembly is fixed at one end of the steering lens tube, which is close to the light emergent direction, and a linear groove is arranged on the side wall of the steering lens tube; the image conversion lens comprises a zoom tube, a first curve zoom groove, a second curve zoom groove, a first sliding sleeve screw, a second sliding sleeve screw, a first guide sleeve and a second guide sleeve, wherein the first curve zoom groove and the second curve zoom groove are formed in the side wall of the zoom tube, the first lens assembly and the second lens assembly are arranged in the image conversion lens tube, the first sliding sleeve screw is fixed on the side wall of the first lens assembly, the second sliding sleeve screw is fixed on the side wall of the second lens assembly, the first guide sleeve and the second guide sleeve are respectively sleeved at the outer ends of the first sliding sleeve screw and the second sliding sleeve screw, and pass through the linear groove and are respectively located in the first curve zoom groove and the second curve zoom groove.
3. The division-rotation image magnification-varying structure with parallax correction function according to claim 2, wherein: the first field lens assembly comprises a first field lens, a first field lens connector and a first field lens clamping ring; a step groove is formed in one end, close to the incidence direction, of the inner wall of the steering lens tube, and the first field lens is arranged in the step groove; the inner wall of the first field lens connector is in threaded connection with the outer wall of the image transfer lens tube, the first field lens pressing ring used for fixing the first field lens is further in threaded connection with the inner wall of the first field lens connector, and the outer wall of the first field lens connector is in threaded connection with the reticle connector through a second thread.
4. The division-rotation image magnification-varying structure with parallax correction function according to claim 2, wherein: a boss is arranged at one end of the steering lens tube, which is close to the light emergent direction, and the second field lens assembly is arranged in the boss; the second field lens assembly comprises a second field lens frame, a second field lens and a second field lens pressing ring, wherein the outer wall of the second field lens frame is in threaded connection with the inner wall of the boss, and the second field lens is arranged in the second field lens frame and is fixed by the second field lens pressing ring in threaded connection with the second field lens frame.
5. The structure of the anaglyph variable magnification with parallax correction according to claim 4, wherein: the second field lens assembly further comprises a diaphragm arranged in the second field lens frame, and the diaphragm is in threaded connection with the second field lens frame and is arranged at one end close to the emergent direction.
6. The structure of the anaglyph variable magnification with parallax correction according to claim 4, wherein: a gasket is arranged between the boss of the steering lens tube and the end part of the zoom tube.
7. The division-rotation image magnification-varying structure with parallax correction function according to claim 1, wherein: the dividing assembly comprises a dividing plate frame, a dividing plate and a dividing plate pressing ring; the outer wall of the reticle frame is connected with the reticle joint through first threads, and the reticle is arranged in the reticle frame and is fixed by a reticle pressing ring in threaded connection with the reticle frame.
8. The division-rotation image magnification-varying structure with parallax correction function according to claim 2, wherein: the outer wall of the variable-magnification tube, which is close to one end of the light emergent direction, is connected with a variable-magnification hand wheel.
9. The division-rotation image magnification-varying structure with parallax correction function according to claim 7, wherein: the outer wall of the reticle frame is fixedly provided with a light emitting diode.
10. The division-rotation image magnification-varying structure with parallax correction function according to claim 9, wherein: a plurality of notches are uniformly distributed on the side wall of the dividing joint along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321978797.3U CN220170073U (en) | 2023-07-24 | 2023-07-24 | Division image conversion zoom structure with parallax correction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321978797.3U CN220170073U (en) | 2023-07-24 | 2023-07-24 | Division image conversion zoom structure with parallax correction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220170073U true CN220170073U (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321978797.3U Active CN220170073U (en) | 2023-07-24 | 2023-07-24 | Division image conversion zoom structure with parallax correction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220170073U (en) |
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2023
- 2023-07-24 CN CN202321978797.3U patent/CN220170073U/en active Active
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