CN217034381U - Oblique image lens angle adjusting device and oblique image lens - Google Patents
Oblique image lens angle adjusting device and oblique image lens Download PDFInfo
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- CN217034381U CN217034381U CN202220662930.3U CN202220662930U CN217034381U CN 217034381 U CN217034381 U CN 217034381U CN 202220662930 U CN202220662930 U CN 202220662930U CN 217034381 U CN217034381 U CN 217034381U
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Abstract
The utility model discloses an oblique image lens angle adjusting device and an oblique image lens, wherein the oblique image lens angle adjusting device comprises: the lens mounting seat is provided with a mounting structure for mounting a lens on one side and a first positioning structure on the other side, and adjusting holes are formed in two sides of the mounting structure; a camera mounting seat, one side of which is provided with a second positioning structure matched with the first positioning structure, a first threaded hole corresponding to the adjusting hole and at least two counter bores close to the adjusting hole, and the middle of the camera mounting seat is provided with a through hole; the elastic piece is arranged in the counter bore, is always pressed by the lens mounting seat and is in a compressed state; and the adjusting screw is arranged in the adjusting hole and the first threaded hole and is used for adjusting the compression amount of the elastic piece. The angle adjusting device of the oblique image lens can accurately control the included angle between the lens surface and the plane where the CMOS image sensor is located through the adjusting screw, and is very convenient to adjust.
Description
Technical Field
The utility model relates to the technical field of industrial cameras, in particular to an oblique image lens angle adjusting device and an oblique image lens.
Background
The oblique image lens is mature and applied to the field of industrial cameras, the purposes of correcting perspective deformation of a shot object and realizing full-area focusing of the shot object are achieved through the inclination and rotation of the front-end lens, and the oblique image lens skillfully utilizes the optical Samm's law, namely, when extension surfaces of three surfaces, namely a shot object plane, an image plane and a lens plane, are intersected in a straight line, a comprehensive and clear image can be obtained. The common lens is limited by the imaging rule of the size and the depth of field, so that the imaging deformation and partial defocusing phenomenon in the visual field range are caused.
According to the existing oblique imaging lens, a lens mounting seat is mounted on a base through a rotating shaft, the inclination angle of the lens can be manually adjusted, and the inclination angle adjustable range is +/-15 degrees. However, the angular range of a typical oblique image lens is basically determined during optical design, and only individual differences are needed to perform fine adjustment, but the oblique image lens has poor adjustment precision, needs to be operated repeatedly, and is difficult to operate.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oblique image lens angle adjusting device and an oblique image lens, and aims to solve the problems that the oblique image lens in the prior art cannot be finely adjusted and is troublesome to adjust.
The technical scheme adopted by the utility model is as follows: provided is an oblique image lens angle adjusting apparatus, including:
the lens mounting seat is provided with a mounting structure for mounting a lens on one side and a first positioning structure on the other side; adjusting holes are formed in two sides of the mounting structure;
a second positioning structure matched with the first positioning structure, a first threaded hole corresponding to the adjusting hole and at least two counter bores arranged close to the adjusting hole are arranged on one side of the camera mounting seat; a through hole is arranged in the middle of the bracket;
the elastic piece is arranged in the counter bore, is always pressed by the lens mounting seat and is in a compressed state;
and the adjusting screw is arranged in the adjusting hole and the first threaded hole and used for adjusting the compression amount of the elastic piece, so that the adjustment of the angle between the lens mounting seat and the camera mounting seat is realized.
Further, the mounting structure is a switching table, a lens mounting hole is formed in the middle of the switching table, and the end face of the switching table is an inclined plane.
Furthermore, the included angle between the end surface of the adapter platform and the plane where the camera mounting seat is located is complementary to the preset inclined angle of the oblique image lens.
Furthermore, at least one side surface of the switching table is provided with a fastening threaded hole perpendicular to the lens mounting hole.
Furthermore, the first positioning structure is a positioning boss, and the second positioning structure is a positioning groove.
Furthermore, the straight line where the positioning boss is located is perpendicular to the straight line where the adjusting hole is located, and scales are arranged on the positioning boss and the positioning groove.
Further, the elastic piece is a spring or a rubber plug.
Furthermore, the number of the counter bores is four or eight, and the counter bores are uniformly distributed around the through holes.
Further, still be provided with on camera lens mount pad or the camera mount pad and can dismantle the connecting portion of being connected with exterior structure, connecting portion are: the connecting support lug is arranged on the lens mounting seat, or the threaded hole is formed in the side wall of the camera mounting seat.
The utility model also discloses an oblique image lens which comprises the oblique image lens angle adjusting device.
The utility model has the beneficial effects that: the oblique image lens angle adjusting device can accurately control the included angle between the lens surface and the plane where the CMOS image sensor is located through the adjusting screw, and is very convenient to adjust.
Drawings
Fig. 1 is a schematic structural diagram of an oblique image lens angle adjusting device disclosed in the present invention.
Fig. 2 is a top view of the oblique image lens angle adjusting apparatus disclosed in the present invention.
Fig. 3 is a sectional view of the oblique lens angle adjustment apparatus disclosed in the present invention.
Fig. 4 is a schematic structural diagram of a lens mount disclosed in the present invention.
Fig. 5 is a schematic structural diagram of a camera mounting base disclosed in the present invention.
Fig. 6 is another schematic structural diagram of the camera mounting base disclosed in the present invention.
FIG. 7 is a schematic view of a spring mounted in a counterbore of a camera mount according to the present disclosure.
Fig. 8 is a schematic structural diagram of a camera disclosed in the present invention.
Fig. 9 is a partial schematic view of the positioning boss and the positioning groove provided with scales according to the disclosure.
Reference numerals are as follows: 1. a lens mount; 11. positioning the boss; 12. a transfer station; 121. tightening the threaded hole; 13. a lens mounting hole; 14. connecting the support lug; 15. an adjustment hole; 2. a camera mount; 21. a through hole; 22. a first threaded hole; 23. a positioning groove; 24. a second threaded hole; 25. a counter bore; 3. a camera; 31. a CMOS image sensor; 4. an adjusting screw; 5. a spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings, but embodiments of the present invention are not limited thereto.
Example 1:
referring to fig. 1 to 8, the present embodiment discloses an oblique image lens angle adjusting apparatus, including: the lens mounting seat 1 is provided with a mounting structure for mounting a lens on one side and a first positioning structure on the other side, and adjusting holes 15 are formed in two sides of the mounting structure; a camera mounting base 2, one side of which is provided with a second positioning structure matched with the first positioning structure, a first threaded hole 22 corresponding to the adjusting hole 15 and at least two counter bores 25 arranged close to the adjusting hole 15, the other side of which is provided with a second threaded hole 24 connected with the camera 3, and the middle of which is provided with a through hole 21 for placing a CMOS image sensor 31 on the camera 3; the elastic piece is arranged in the counter bore 25, is always pressed by the lens mounting seat 1 and is in a compressed state; adjusting screw 4 sets up in regulation hole 15 and first screw hole 22 for adjust the decrement of elastic component, thereby realize lens mount pad 1 with the adjustment of angle between the camera mount pad 2, also can be through unscrewing or screwing up adjusting screw 4 and finely tune contained angle between lens mirror surface and the plane of CMOS image sensor 31 place.
In this embodiment, referring to fig. 4, the mounting structure is an adapter 12, a lens mounting hole 13 is formed in the middle of the adapter 12, and the lens mounting hole 13 is an internal threaded hole because the existing lens has external threads. In order to prevent the lens from loosening in the lens mounting hole 13, in this embodiment, at least one side surface of the adapter 12 is provided with a fastening threaded hole 121 perpendicular to the lens mounting hole 13, and the lens is locked by a fastening screw.
The angle range of a common oblique image lens is basically determined during optical design, and only individual difference is needed for fine adjustment, so that the end face of the adapter table 12 is set to be an oblique face, and the included angle between the end face of the adapter table 12 and the plane where the camera mounting base 2 is located (or the plane where the CMOS image sensor 31 is located) is complementary to the preset oblique angle of the oblique image lens. For example, the angle between the lens and the image plane (i.e. the preset inclination angle of the oblique lens) is 74.36 degrees, and then the included angle between the end surface of the adapting table 12 and the plane where the CMOS image sensor 31 is located in this embodiment is 15.64 degrees. The CMOS image sensor 31 is finely adjusted by the adjustment screw 4 in response to the individual difference between the individual lenses.
In this embodiment, the first positioning structure is a positioning boss 11, and the second positioning structure is a positioning groove 23. The installation accuracy can be ensured by arranging the positioning boss 11 and the positioning groove 23. Furthermore, the straight line that location boss 11 is located with the straight line that adjusting hole 15 is located is perpendicular to make it except can guaranteeing the installation accuracy, when also making adjustment adjusting screw 4, location boss 11 plays the pivot effect in positioning groove 23, consequently can be provided with the scale on location boss 11 and the positioning groove 23 (see fig. 9), thereby know the angle of fine setting.
In the above scheme, the height of the positioning boss 11 is smaller than the depth of the positioning groove 23, and in the adjustment process, a gap is formed between the lens mounting base 1 and the camera mounting base 2, and the gap and the opening angle are changed by adjusting the adjusting screw 4, and certainly, the gap can not be reserved when adjustment is not needed. In yet another embodiment of the positioning projections 11 and the positioning recesses 23, the height of the positioning projections 11 is smaller than the depth of the positioning recesses 23, so that the lens mount 1 is a "teeter-totter", which means that there is always a gap between the lens mount 1 and the camera mount 2, and when adjusting the adjusting screws 4, the upper adjusting screws 4 are loosened, the lower adjusting screws 4 need to be tightened, and vice versa.
In this embodiment, referring to fig. 6, the elastic member is a spring 5, and the number of the counter bores 25 is eight and is uniformly arranged around the through hole 21. It is easy to understand that the number of the counter bores 25 can be 4, and the counter bores are uniformly distributed around the through hole 21; in addition, there may be at least two counter bores 25, which are located next to the two first threaded holes 22, respectively. In other embodiments, the elastic member may also be a rubber stopper.
The angle adjusting device, the camera 3 and the lens of this implementation are finally installed in the laser seam tracker, therefore need set up on lens mount pad 1 or the camera mount pad 2 and can dismantle the connecting portion of being connected with exterior structure (refer to the laser seam tracker in this embodiment), connecting portion can be: and the connecting support lug 14 is arranged on the lens mounting seat 1, or the connecting support lug is arranged in a threaded hole on the side wall of the camera mounting seat 2.
Example 2
The embodiment discloses an oblique image lens, which comprises the oblique image lens angle adjusting device of the embodiment 1.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An oblique image lens angle adjusting device, comprising:
the lens mounting seat is provided with a mounting structure for mounting a lens on one side and a first positioning structure on the other side; adjusting holes are formed in two sides of the mounting structure;
a second positioning structure matched with the first positioning structure, a first threaded hole corresponding to the adjusting hole and at least two counter bores arranged close to the adjusting hole are arranged on one side of the camera mounting seat; a through hole is arranged in the middle part of the bracket;
the elastic piece is arranged in the counter bore, is always pressed by the lens mounting seat and is in a compressed state;
and the adjusting screw is arranged in the adjusting hole and the first threaded hole and used for adjusting the compression amount of the elastic piece, so that the angle between the lens mounting seat and the camera mounting seat can be adjusted.
2. The oblique image lens angle adjusting device of claim 1, wherein the mounting structure is an adapter table, a lens mounting hole is formed in the middle of the adapter table, and the end face of the adapter table is an oblique face.
3. The oblique image lens angle adjusting device according to claim 2, wherein an angle between the end surface of the adapter platform and a plane where the camera mounting seat is located is complementary to a preset inclination angle of the oblique image lens.
4. The oblique image lens angle adjusting device according to claim 2, wherein at least one side of the adapter table is provided with a fastening threaded hole perpendicular to the lens mounting hole.
5. The oblique image lens angle adjusting device of claim 1, wherein the first positioning structure is a positioning boss and the second positioning structure is a positioning groove.
6. The oblique image lens angle adjusting device of claim 5, wherein the straight line of the positioning boss is perpendicular to the straight line of the adjusting hole, and scales are provided on the positioning boss and the positioning groove.
7. The oblique image lens angle adjusting device of claim 1, wherein the elastic member is a spring or a rubber stopper.
8. The oblique image lens angle adjusting device of claim 1, wherein the number of the counter bores is four or eight, and the counter bores are uniformly arranged around the through hole.
9. The oblique image lens angle adjusting device of claim 1, wherein the lens mount or the camera mount is further provided with a connecting portion detachably connected to an external structure, the connecting portion is: the connecting support lug is arranged on the lens mounting seat, or the threaded hole is formed in the side wall of the camera mounting seat.
10. An oblique image lens comprising the oblique image lens angle adjusting device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220662930.3U CN217034381U (en) | 2022-03-25 | 2022-03-25 | Oblique image lens angle adjusting device and oblique image lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220662930.3U CN217034381U (en) | 2022-03-25 | 2022-03-25 | Oblique image lens angle adjusting device and oblique image lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217034381U true CN217034381U (en) | 2022-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220662930.3U Active CN217034381U (en) | 2022-03-25 | 2022-03-25 | Oblique image lens angle adjusting device and oblique image lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217034381U (en) |
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2022
- 2022-03-25 CN CN202220662930.3U patent/CN217034381U/en active Active
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