CN219046154U - 4K high definition objective structure - Google Patents
4K high definition objective structure Download PDFInfo
- Publication number
- CN219046154U CN219046154U CN202223333913.4U CN202223333913U CN219046154U CN 219046154 U CN219046154 U CN 219046154U CN 202223333913 U CN202223333913 U CN 202223333913U CN 219046154 U CN219046154 U CN 219046154U
- Authority
- CN
- China
- Prior art keywords
- objective lens
- lens
- objective
- object lens
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The utility model discloses a 4K high-definition objective structure, which comprises an object lens barrel, an object lens I L1, an object lens II L2, an object lens III L3, an object lens IV L4, an object lens V L5 and an object lens V L6, wherein the object lens II L2 and the object lens III L3 are glued to form a glued object lens group L7, the object lens I L1, the glued object lens group L7, the object lens IV L4, the object lens V L5 and the object lens V L6 are arranged in the object lens barrel at intervals from the object side to an imaging surface along the direction of an optical axis S, the object lens barrel can move left and right along the optical axis S, and when the object lens barrel moves left and right along the optical axis S, the object lens I L1, the glued object lens group L7, the object lens V L4, the object lens V L5 and the object lens V L6 can be driven to move left and right along the optical axis S so as to realize focal length adjustment, and simultaneously, the back focal length BFL of the object lens V L6 to the imaging surface can be changed, and the imaging quality can be furthest reduced by arranging 6 object lenses in the object lens barrel, imaging quality can be improved, imaging is more realistic, and the imaging can be matched with a novel image sensor, and the resolution of which is not lower than 4K.
Description
Technical Field
The utility model belongs to the technical field of optical imaging, and particularly relates to a 4K high-definition objective lens structure.
Background
The current gun sight structure comprises an objective lens, a gun sight system and an eyepiece lens, wherein an image sensor is arranged in the gun sight system, and an observed object enters the image sensor of the gun sight system through the objective lens and is then displayed on the eyepiece lens. In the current gun sight structure, an objective lens is one of important parts of a gun sight system, and the objective lens of the current gun sight system generally adopts a pure optical structure. The existing objective lens comprises an objective lens barrel, 3-4 lenses are generally arranged in the objective lens barrel, the number of the lenses can influence imaging aberration and chromatic aberration, namely imaging resolution can be influenced, and if only 3-4 lenses are arranged in the objective lens, the gun aiming structure can obtain imaging with the resolution of 2K under the cooperation of an image sensor. With the development of image sensor technology, the image sensor in the gun sight system is improved and upgraded, so that the gun sight structure has the capability of obtaining imaging with higher resolution, but if only 3-4 lenses are still arranged in the objective lens, the objective lens cannot keep pace with the updating of the image sensor, namely, the gun sight structure cannot obtain imaging with resolution higher than 2K, so that the objective lens with only 3-4 lenses is easy to be eliminated by the market.
Disclosure of Invention
The utility model aims to provide a 4K high-definition objective lens structure, which is used for solving the technical problem that an objective lens in the prior art cannot keep pace with the updating of an image sensor if only 3-4 lenses are arranged in the objective lens, namely, a gun aiming structure cannot obtain imaging with resolution higher than 2K.
The technical scheme of the utility model is realized as follows:
the utility model aims to provide a 4K high-definition objective structure, which comprises an objective lens barrel, an objective lens I L1, an objective lens II L2, an objective lens III L3, an objective lens IV L4, an objective lens V L5 and an objective lens V L6, wherein the objective lens II L2 and the objective lens III L3 are glued to form a glued objective lens group L7, the objective lens I L1, the glued objective lens group L7, the objective lens IV L4, the objective lens V L5 and the objective lens V L6 are arranged in the objective lens barrel at intervals from the object side to an imaging surface along the direction of an optical axis S, the objective lens barrel can move left and right along the optical axis S, and when the objective lens barrel moves left and right along the optical axis S, the objective lens I L1, the glued objective lens group L7, the objective lens V L4, the objective lens V L5 and the objective lens V L6 can be driven to move left and right along the optical axis S as a whole, so that focal length adjustment can be realized, and the back focal length BFL from the objective lens V L6 to the imaging surface can be changed.
Preferably, the first objective lens L1 is a positive lens, the second objective lens L2 is a negative lens, the third objective lens L3 is a positive lens, the fourth objective lens L4 is a negative lens, the fifth objective lens L5 is a negative lens, and the sixth objective lens L6 is a positive lens.
Preferably, the objective lens pental 5 is an aspherical lens.
Preferably, the objective lens structure further comprises a focusing cylinder and an adjusting cylinder, the focusing cylinder is rotatably sleeved outside the objective lens barrel, and a first thread transmission structure is arranged between the focusing cylinder and the objective lens barrel; the adjusting cylinder is sleeved outside one end part of the object lens barrel, a limiting structure is arranged between the adjusting cylinder and the objective lens barrel and used for limiting the relative rotation between the adjusting cylinder and the objective lens barrel, and the adjusting cylinder can move along the axial direction of the objective lens barrel; one end of the adjusting cylinder is sleeved outside one end of the focusing cylinder, a second thread transmission structure is arranged between the adjusting cylinder and the focusing cylinder, the thread pitch of the first thread transmission structure is larger than that of the second thread transmission structure, and the adjusting cylinder and the objective cylinder can be moved relatively by rotating the focusing cylinder, so that the objective cylinder is driven to move left and right along the optical axis S.
Preferably, the limiting structure comprises a chute arranged on the side wall of the adjusting cylinder and a screw arranged on the object lens barrel, the screw is arranged in the chute, and the screw can move along the chute to realize the movement of the object lens barrel along the optical axis S.
Preferably, the first external thread section on the outer wall surface of the adjusting cylinder is positioned at the front side of the sliding groove.
Preferably, the first screw-thread locking ring, the second screw-thread locking ring, the third screw-thread locking ring and the spacer ring are arranged in the objective lens barrel; the first screw locking ring is used for limiting the axial movement of the objective lens L1 so as to fix the objective lens L1 in the objective lens barrel; the second screw locking ring is used for limiting the axial movement of the second objective lens L2 so as to fix the second objective lens L2, the third objective lens L3 and the fourth objective lens L4 in the objective lens cone; the third screw locking ring is used for limiting the axial movement of the objective lens pental 5 so as to fix the objective lens pental 5 in the objective lens barrel; the space ring is positioned between the objective lens five L5 and the objective lens six L6, and is used for supporting the objective lens five L5 and limiting the axial movement of the objective lens six L6 so as to fix the objective lens six L6 in the objective lens barrel.
Preferably, a first sealing ring is arranged between the first thread locking ring and the objective lens L1; and a second sealing ring is arranged between the six L6 of the objective lens and the objective lens barrel.
Preferably, the focal length of the objective lens structure is in the range of 65mm-75 mm.
Compared with the prior art, the utility model has the following advantages:
1. according to the 4K high-definition objective lens structure, 6 objective lenses are arranged in the objective lens barrel, so that imaging aberration and chromatic aberration can be reduced to the greatest extent, imaging quality is improved, imaging is more vivid, imaging with resolution not lower than 4K can be obtained by matching with a novel image sensor, the objective lens structure can keep up with the development of the image sensor, and market share is better occupied; in addition, the objective lens barrel drives 6 objective lenses to move to realize focal length adjustment, so that the focal length of the objective lens structure can be rapidly adjusted to obtain clear imaging when observing objects at different distances, and the device is simple in structure and reasonable in design.
2. Other advantages of the present utility model are described in detail in the description of the embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an objective lens structure provided by the present utility model;
fig. 2 is a schematic perspective view of an objective lens structure according to the present utility model;
FIG. 3 is an exploded view of an objective lens according to the present utility model;
fig. 4 is a schematic diagram of an internal structure of an objective lens structure according to the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the present embodiment provides a 4K high-definition objective lens structure, where the objective lens structure includes an objective lens barrel 1, an objective lens L1, an objective lens two L2, an objective lens three L3, an objective lens four L4, an objective lens five L5 and an objective lens six L6, where the objective lens two L2 and the objective lens three L3 are glued to form a glued objective lens group L7, the objective lens one L1, the glued objective lens group L7, the objective lens four L4, the objective lens five L5 and the objective lens six L6 are installed in the objective lens barrel 1 and are arranged at intervals from the object side to the imaging surface along the direction of the optical axis S, the objective lens barrel 1 can move left and right along the optical axis S, and when the objective lens barrel 1 moves left and right along the optical axis S, the objective lens one L1, the glued objective lens group L7, the glued objective lens four L4, the objective lens five L5 and the objective lens six L6 can be driven to move left and right along the optical axis S to realize focal length adjustment, and the back focal length BFL from the objective lens six L6 to the imaging surface can be changed; according to the 4K high-definition objective lens structure provided by the embodiment, 6 objective lenses are arranged in the objective lens barrel 1, so that imaging aberration and chromatic aberration can be reduced to the greatest extent, imaging quality is improved, imaging is more vivid, imaging with resolution not lower than 4K can be obtained by matching with a novel image sensor, the objective lens structure is enabled to keep pace with the development of the image sensor, and market share is better occupied; in addition, the object lens barrel 1 drives 6 objective lenses to move to realize focal length adjustment, so that the objective lens structure can rapidly adjust focal length to obtain clear imaging when observing objects at different distances, the structure is simple in structure and reasonable in design, the focal length of the 4K high-definition objective lens structure provided by the embodiment is in a range of 65mm-75mm, and particularly 70mm, and the objects which are observed beyond 5 meters can be observed.
Specifically, the first objective lens L1 is a positive lens, the second objective lens L2 is a negative lens, the third objective lens L3 is a positive lens, the fourth objective lens L4 is a negative lens, the fifth objective lens L5 is a negative lens, and the sixth objective lens L6 is a positive lens.
As a preferable scheme, the five L5 of the objective lens is an aspheric lens, the design is reasonable, the aberration and the chromatic aberration of imaging can be reduced by selecting the aspheric lens, the imaging quality is improved, the imaging is more vivid, and therefore higher resolution is obtained.
As a preferable solution, as shown in fig. 2 to 4, the objective lens structure further includes a focusing cylinder 2 and an adjusting cylinder 4, the focusing cylinder 2 is rotatably sleeved outside the objective lens cylinder 1, and a first screw transmission structure 3 is disposed between the focusing cylinder 2 and the objective lens cylinder 1; the adjusting cylinder 4 is sleeved outside one end part of the object lens barrel 1, a limiting structure 5 is arranged between the adjusting cylinder 4 and the object lens barrel 1 and used for limiting the relative rotation between the adjusting cylinder 4 and the object lens barrel 1, and the adjusting cylinder 4 can move along the axial direction of the object lens barrel 1; one end of the adjusting cylinder 4 is sleeved outside one end of the focusing cylinder 2, a second thread transmission structure 6 is arranged between the adjusting cylinder 4 and the focusing cylinder 2, the thread pitch of the first thread transmission structure 3 is larger than that of the second thread transmission structure 6, and the adjusting cylinder 4 and the objective cylinder 1 can relatively move by rotating the focusing cylinder 2, so that the objective cylinder 1 is driven to move left and right along the optical axis S, and the device is simple in structure and convenient to operate.
Specifically, as shown in fig. 2 to 4, the limiting structure 5 includes a chute 51 provided on a side wall of the adjustment cylinder 4 and a screw 52 mounted on the objective lens barrel 1, the screw 52 being disposed in the chute 51, the screw 52 being movable along the chute 51 to effect movement of the objective lens barrel 1 along the optical axis S; the first thread transmission structure 3 comprises a second external thread section 31 arranged on the outer wall surface of the object lens barrel 1 and a first internal thread section 32 arranged on the inner wall surface of the focusing barrel 2, and the second external thread section 31 is in threaded connection with the first internal thread section 32; the second thread transmission structure 6 comprises a third external thread section 61 arranged on the outer wall surface of the focusing cylinder 2 and a second internal thread section 62 arranged on the inner wall surface of the adjusting cylinder 4, and the third external thread section 61 is in threaded connection with the second internal thread section 62.
As a preferred solution, as shown in fig. 2 to 4, the first external thread section 41 on the outer wall surface of the adjusting cylinder 4 is located at the front side of the chute 51, the first external thread section 41 is used for installing the objective structure, and the first external thread section 41 is disposed at the front side of the chute 51, so that the objective structure can cover the chute 51 after being installed, thereby making the observation mirror using the objective structure in the present embodiment more attractive, and also playing a role in protecting the objective structure.
As a preferred solution, as shown in fig. 2 to 4, the objective lens barrel 1 is internally provided with a first threaded locking ring 7, a second threaded locking ring 8, a third threaded locking ring 9 and a spacer ring 10; the first screw locking ring 7, the second screw locking ring 8 and the third screw locking ring 9 are in threaded connection with the inner wall of the objective lens barrel 1, and the spacer ring 10 is embedded in the objective lens barrel 1; the first screw locking ring 7 is used for limiting the axial movement of the objective lens L1 so as to fix the objective lens L1 in the objective lens barrel 1; the second screw locking ring 8 is used for limiting the axial movement of the second objective lens L2 so as to fix the second objective lens L2, the third objective lens L3 and the fourth objective lens L4 in the objective lens barrel 1; the third screw locking ring 9 is used for limiting the axial movement of the objective lens pental 5 so as to fix the objective lens pental 5 in the objective lens barrel 1; the spacer ring 10 is located between the objective lens five L5 and the objective lens six L6, and the spacer ring 10 is used for supporting the objective lens five L5, and simultaneously, is used for limiting the axial movement of the objective lens six L6 so that the objective lens six L6 is fixed in the objective lens barrel 1, and has simple structure and convenient installation.
As a preferred embodiment, as shown in fig. 2 to 4, a first sealing ring 20 is disposed between the first screw locking ring 7 and the objective lens L1; a second sealing ring 30 is arranged between the objective lens six L6 and the objective lens barrel 1; the protection level of the objective lens structure can be improved.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present utility model are included in the scope of the present utility model.
Claims (9)
1. A4K high definition objective structure, its characterized in that: the lens barrel comprises an object lens barrel (1), an object lens L1, an object lens L2, an object lens L3, an object lens L4, an object lens L5 and an object lens L6, wherein the object lens L2 and the object lens L3 are glued to form a glued object lens group L7, the object lens L1, the glued object lens group L7, the object lens L4, the object lens L5 and the object lens L6 are arranged in the object lens barrel (1) at intervals from the object side to the imaging surface along the direction of an optical axis S, the object lens barrel (1) can move left and right along the optical axis S, and when the object lens barrel (1) moves left and right along the optical axis S, the object lens L1, the glued object lens group L7, the object lens L4, the object lens L5 and the object lens L6 can be driven to move left and right along the optical axis S integrally so as to realize focal length adjustment, and the back focal length BFL from the object lens L6 to the imaging surface can be changed.
2. The 4K high definition objective lens structure according to claim 1, wherein: the first objective lens L1 is a positive lens, the second objective lens L2 is a negative lens, the third objective lens L3 is a positive lens, the fourth objective lens L4 is a negative lens, the fifth objective lens L5 is a negative lens, and the sixth objective lens L6 is a positive lens.
3. The 4K high definition objective lens structure according to claim 2, wherein: the objective lens five L5 is an aspheric lens.
4. A 4K high definition objective structure according to claim 1 or 2 or 3, characterized in that: further comprises:
the focusing cylinder (2) is rotatably sleeved outside the objective cylinder (1), and a first thread transmission structure (3) is arranged between the focusing cylinder (2) and the objective cylinder (1);
the adjusting cylinder (4) is sleeved outside one end part of the objective cylinder (1), a limiting structure (5) is arranged between the adjusting cylinder (4) and the objective cylinder (1) and used for limiting the relative rotation between the adjusting cylinder (4) and the objective cylinder (1), and the adjusting cylinder (4) can move along the axial direction of the objective cylinder (1);
one end of the adjusting cylinder (4) is sleeved outside one end of the focusing cylinder (2), a second thread transmission structure (6) is arranged between the adjusting cylinder (4) and the focusing cylinder (2), the thread pitch of the first thread transmission structure (3) is larger than that of the second thread transmission structure (6), and the adjusting cylinder (4) and the objective cylinder (1) can relatively move by rotating the focusing cylinder (2), so that the objective cylinder (1) is driven to move left and right along the optical axis S.
5. The 4K high definition objective lens structure according to claim 4, wherein: the limiting structure (5) comprises a sliding groove (51) arranged on the side wall of the adjusting cylinder (4) and a screw (52) arranged on the objective cylinder (1), the screw (52) is arranged in the sliding groove (51), and the screw (52) can move along the sliding groove (51) to enable the objective cylinder (1) to move along the optical axis S.
6. The 4K high definition objective lens structure according to claim 5, wherein: further comprises: the first external thread section (41) on the outer wall surface of the adjusting cylinder (4), and the first external thread section (41) is positioned at the front side of the sliding groove (51).
7. The 4K high definition objective lens structure according to claim 6, wherein: the first threaded locking ring (7), the second threaded locking ring (8), the third threaded locking ring (9) and the spacer ring (10) are arranged in the objective lens barrel (1); the first screw locking ring (7) is used for limiting the axial movement of the objective lens L1 so as to fix the objective lens L1 in the objective lens barrel (1); the second screw locking ring (8) is used for limiting the axial movement of the second objective lens L2 so as to fix the second objective lens L2, the third objective lens L3 and the fourth objective lens L4 in the objective lens barrel (1); the third screw locking ring (9) is used for limiting the axial movement of the objective lens five L5 so as to fix the objective lens five L5 in the objective lens barrel (1); the space ring (10) is positioned between the objective lens five L5 and the objective lens six L6, and the space ring (10) is used for supporting the objective lens five L5 and limiting the axial movement of the objective lens six L6 so as to fix the objective lens six L6 in the objective lens barrel (1).
8. The 4K high definition objective lens structure according to claim 7, wherein: a first sealing ring (20) is arranged between the first thread locking ring (7) and the objective lens L1; a second sealing ring (30) is arranged between the objective lens six L6 and the objective lens barrel (1).
9. The 4K high definition objective lens structure according to claim 4, wherein: the focal length of the objective lens structure is in the range of 65mm-75 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223333913.4U CN219046154U (en) | 2022-12-12 | 2022-12-12 | 4K high definition objective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223333913.4U CN219046154U (en) | 2022-12-12 | 2022-12-12 | 4K high definition objective structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219046154U true CN219046154U (en) | 2023-05-19 |
Family
ID=86318465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223333913.4U Active CN219046154U (en) | 2022-12-12 | 2022-12-12 | 4K high definition objective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219046154U (en) |
-
2022
- 2022-12-12 CN CN202223333913.4U patent/CN219046154U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104459957B (en) | Refrigeration mode medium-wave infrared and laser bimodulus Shared aperture camera lens | |
| CN101825763A (en) | High resolution day and night multipoint zoom lens | |
| CN202171678U (en) | High-resolution zoom lens for intelligent traffic system | |
| CN103969800A (en) | Long-focus type panoramic annular imaging lens | |
| CN219046154U (en) | 4K high definition objective structure | |
| CN208888463U (en) | A kind of zoom lens | |
| CN201017094Y (en) | Projecting lens for big screen combined split joint wall | |
| CN113534424A (en) | Zoom lens | |
| CN113534425A (en) | Zoom lens | |
| CN210514769U (en) | Non-refrigeration type long-wave infrared continuous zoom lens | |
| CN205899118U (en) | Infrared continuous -zoom lens of hypermutation multiple proportions medium wave | |
| CN106125277A (en) | High-contrast high resolution day and night motorized zoom lens and focus adjustment method thereof | |
| CN102289060B (en) | High-resolution zoom lens for intelligent transportation system | |
| CN102520514B (en) | High-accuracy low-light level sighting telescope | |
| CN206002765U (en) | High-contrast high resolution day and night motorized zoom lenses | |
| CN104181674B (en) | High-resolution fine setting day and night tight shot | |
| CN203422524U (en) | One-inch-format four-component high-resolution camera lens | |
| CN103809275B (en) | Aspheric surface infrared night vision zooming camera lens | |
| CN204496091U (en) | The economic money micro-lens of high resolution day and night | |
| CN216526479U (en) | Short-focus lens system | |
| CN204287588U (en) | Refrigeration mode medium-wave infrared and laser bimodulus Shared aperture camera lens | |
| CN211061769U (en) | Three-guide-rail medium-wave infrared refrigeration continuous zoom lens with large zoom ratio | |
| CN2694300Y (en) | Image view-finding unit | |
| CN203825282U (en) | Aspherical infrared night vision zoom pick-up lens | |
| CN104570283B (en) | Road monitoring camera lens applicable to starlight-level ultralow illuminance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |