CN214375497U - Optical module back focal length adjusting and fixing structure - Google Patents
Optical module back focal length adjusting and fixing structure Download PDFInfo
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- CN214375497U CN214375497U CN202023233046.8U CN202023233046U CN214375497U CN 214375497 U CN214375497 U CN 214375497U CN 202023233046 U CN202023233046 U CN 202023233046U CN 214375497 U CN214375497 U CN 214375497U
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- clamping arm
- focal length
- optical module
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Abstract
The utility model discloses a back focal length adjusting and fixing structure of an optical module, which comprises a fixed part, a movable part and a locking device; the fixing part is provided with a mounting hole, and the mounting hole is provided with a positioning hole part and a threaded hole part; the movable part is suitable for mounting a camera and is provided with a positioning shaft part which is matched with the positioning hole part and is connected in the positioning hole part in a sliding fit manner; the movable part is also provided with a threaded shaft part which is in threaded connection with the threaded hole part and is suitable for driving the movable part to slide along the positioning hole part when the movable part is rotated; the locking device is connected to the fixed component and is suitable for locking and fixing the movable component on the fixed component when the movable component slides in place along the positioning hole part. The utility model discloses can the position of meticulous regulation camera, and then can the meticulous back focus of adjusting to adjust the convenience and can shorten when adjusting.
Description
Technical Field
The utility model relates to an optical module back focal length adjustment fixed knot constructs.
Background
At present, the optical imaging technology is widely applied to the fields of macroscopic astronomy imaging, microscopic biological microscopic imaging, metallographic structure imaging and the like. In order to obtain a clear image in the imaging process, the back focal length of the optical module, that is, the distance between the camera and the lens, needs to be adjusted. At present, the position of a camera is adjusted by adding a gasket or matching and processing related parts in the market, and then the back focal length of an optical module is adjusted. However, both the way of adding the shim and the way of matching the related parts require measuring and then matching the shim and the related parts, and since certain dimensional errors are generated in both the machining and the matching, the method is difficult to realize fine adjustment of the back focus, and the time period required by the adjustment is long.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide an optical module back focal length adjustment fixed knot and construct, it can the position of meticulous regulation camera, and then can the meticulous back focal length of adjusting to adjust the convenience and can shorten when adjusting.
In order to solve the technical problem, the technical scheme of the utility model is that: a back focal length adjusting and fixing structure of an optical module comprises a fixed part, a movable part and a locking device; wherein the content of the first and second substances,
the fixing part is provided with a mounting hole, and the mounting hole is provided with a positioning hole part and a threaded hole part;
the movable part is suitable for mounting a camera and is provided with a positioning shaft part which is matched with the positioning hole part and is connected in the positioning hole part in a sliding fit manner;
the movable part is also provided with a threaded shaft part which is in threaded connection with the threaded hole part and is suitable for driving the movable part to slide along the positioning hole part when the movable part is rotated;
the locking device is connected to the fixed component and is suitable for locking and fixing the movable component on the fixed component when the movable component slides in place along the positioning hole part.
Further provides a concrete structure of the locking device, and the locking device comprises a left clamping arm, a right clamping arm and a tightening mechanism; wherein the content of the first and second substances,
the fixed end of the left clamping arm and the fixed end of the right clamping arm are respectively connected to the fixed part;
the tightening mechanism is connected between the movable end of the left clamping arm and the movable end of the right clamping arm and is suitable for acting to drive the movable end of the left clamping arm and the movable end of the right clamping arm to fold so as to tightly connect the movable part to the fixed part.
Further provides a concrete structure of the tightening mechanism, wherein the tightening mechanism comprises a tightening bolt, a connecting hole and a bolt hole; wherein the content of the first and second substances,
the connecting hole is arranged on any one of the movable end of the left clamping arm and the movable end of the right clamping arm;
the bolt hole is formed in the rest one of the movable end of the left clamping arm and the movable end of the right clamping arm;
and the tightening bolt penetrates through the connecting hole and is in threaded connection with the bolt hole and is suitable for screwing to drive the movable end of the left clamping arm and the movable end of the right clamping arm to fold.
Further providing a specific arrangement mode of the left clamping arm and the right clamping arm, wherein the left clamping arm and the right clamping arm are respectively integrated with the fixed part;
separation grooves are formed between the lower end part of the left clamping arm and the fixed part and between the lower end part of the right clamping arm and the fixed part;
and a clamping gap is arranged between the movable end of the left clamping arm and the movable end of the right clamping arm.
Further, in order to facilitate screwing of the movable member, a screwing action portion adapted to be fitted with a screwing tool so that the movable member is driven to rotate by the screwing tool is provided on an outer peripheral portion of the movable member.
Further, a specific arrangement of the camera is provided, the movable part is provided with a light channel, and the camera is connected to the movable part and located on an upward extending path of the light channel.
Further, the optical module back focal length adjusting and fixing structure further comprises a tube lens and an objective lens, wherein the tube lens and the objective lens are respectively located on the downward extending path of the optical channel, and the tube lens and the objective lens are respectively coaxially arranged with the camera.
Further, the tube lens is located between the objective lens and the fixing member.
Further, the optical module back focal length adjusting and fixing structure further comprises a support, and the fixing part, the tube lens and the objective lens are connected to the support.
Further, the output end of the camera is connected with the input end of the external display.
After the technical scheme is adopted, firstly, the output end of the camera is connected with the input end of an external display, so that the external display can normally display images; and then the movable part is rotated, and the movable part is driven to slide in the positioning hole part through the matching of the threaded shaft part and the threaded hole part, so that the position of the camera can be adjusted, and the distance between the camera and the tube lens is adjusted. And when a clear image is seen on an external display, screwing the tightening bolt to enable the left clamping arm and the right clamping arm to tightly hold the movable part on the fixed part. The position of the camera can be finely adjusted through the structure, so that the back focal length of the optical module can be finely adjusted, the adjustment is convenient, the time consumption is short, and the image quality can be adjusted on line; in addition, the structure has the advantages of small number of parts, simple structure and low manufacturing cost, improves the assembly efficiency and shortens the production period.
Drawings
Fig. 1 is a schematic structural view of a back focal length adjusting and fixing structure of an optical module according to the present invention;
fig. 2 is a sectional view of the optical module back focus adjusting and fixing structure of the present invention;
fig. 3 is a front view of the optical module back focal length adjusting and fixing structure of the present invention;
fig. 4 is a schematic structural diagram of the locking device of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 to 4, a back focal length adjusting and fixing structure of an optical module includes a fixing part 1, a movable part 2 and a locking device 3; wherein the content of the first and second substances,
the fixing part 1 is provided with a mounting hole 4, and the mounting hole 4 is provided with a positioning hole part 5 and a threaded hole part 6;
the movable part 2 is suitable for mounting a camera 7, and the movable part 2 is provided with a positioning shaft part 8 which is matched with the positioning hole part 5 and is connected in the positioning hole part 5 in a sliding fit mode;
the movable member 2 further has a threaded shaft portion 9 threadedly coupled to the threaded hole portion 6 and adapted to drive the movable member 2 to slide along the positioning hole portion 5 when the movable member 2 is rotated;
the locking device 3 is connected to the fixed part 1 and is suitable for locking and fixing the movable part 2 on the fixed part 1 when the movable part 2 slides along the positioning hole part 5; specifically, the positioning hole portion 5 and the positioning shaft portion 8 are matched, so that the movable part 2 can be ensured to be coaxial with the mounting hole 4 all the time in the sliding process. When the movable part 2 is rotated, the movable part 2 is driven to slide in the positioning hole part 5 through the matching of the threaded shaft part 9 and the threaded hole part 6, and the position of the camera 7 can be adjusted, so that the back focal length of the optical module can be adjusted. When the camera 7 is adjusted to a proper position, the movable part 2 is fixed through the locking device 3, the position of the camera 7 can be finely adjusted through the structure, the back focal length of the optical module can be finely adjusted, and the optical module is convenient to adjust, short in time and capable of being adjusted on line.
As shown in fig. 4, the locking device 3 includes, for example and without limitation, a left arm 10, a right arm 11, and a tightening mechanism; wherein the content of the first and second substances,
the fixed end of the left clamping arm 10 and the fixed end of the right clamping arm 11 are respectively connected to the fixed part 1;
the tightening mechanism is connected between the movable end of the left clamping arm 10 and the movable end of the right clamping arm 11, and is suitable for acting to drive the movable end of the left clamping arm 10 and the movable end of the right clamping arm 11 to close so as to tightly connect the movable part 2 to the fixed part 1.
As shown in fig. 4, the tightening mechanism is, for example, but not limited to, a structure including a tightening bolt, a coupling hole 12, and a bolt hole 13; wherein the content of the first and second substances,
the connecting hole 12 is arranged at any one of the movable end of the left clamping arm 10 and the movable end of the right clamping arm 11;
the bolt hole 13 is formed in the remaining one of the movable end of the left clamping arm 10 and the movable end of the right clamping arm 11;
the tightening bolt penetrates through the connecting hole 12, is connected in the bolt hole 13 in a threaded manner and is suitable for being screwed to drive the movable end of the left clamping arm 10 and the movable end of the right clamping arm 11 to be closed; specifically, the movable member 2 is connected to the left arm lock 10 and the right arm lock 11 in a clasped manner, so that the thread hole portion 6 and the thread on the thread shaft portion 9 can be prevented from being damaged.
As shown in fig. 1 to 4, the left arm 10 and the right arm 11 are respectively integrated with the fixing member 1;
a clamping gap 15 is arranged between the movable end of the left clamping arm 10 and the movable end of the right clamping arm 11.
As shown in fig. 1 and 3, the outer circumferential portion of the movable member 2 may be provided with a screw action portion 16 adapted to be fitted with a screw tool so that the movable member 2 is driven to rotate by the screw tool; specifically, the screwing tool may be, but is not limited to, a wrench, and the screwing action portion 16 is two flat surface portions provided on the outer peripheral portion of the movable member 2.
As shown in fig. 2, a light channel 17 may be provided in the movable part 2, and the camera 7 is connected to the movable part 2 and located on an upward extending path of the light channel 17;
as shown in fig. 1 to 3, the optical module back focal length adjusting and fixing structure may further include a tube lens 18 and an objective lens 19, where the tube lens 18 and the objective lens 19 are respectively located on a downward extending path of the optical channel 17, and the tube lens 18 and the objective lens 19 are respectively coaxially disposed with the camera 7; specifically, the specific structures of the tube lens 18 and the objective lens 19 are well known in the prior art, and are not described in detail in this embodiment. The cooperation of the positioning hole part 5 and the positioning shaft part 8 can ensure that the camera 7, the tube lens 18 and the objective lens 19 are coaxial all the time in the sliding process of the movable part 2, and further the imaging quality can be ensured.
As shown in fig. 2 and 3, the tube lens 18 is located between the objective lens 19 and the fixing member 1.
In this embodiment, the optical module back focal length adjusting and fixing structure may further include a bracket, and the fixing component 1, the tube lens 18 and the objective lens 19 may be connected to the bracket; the output of the camera 7 may be connected to an input of an external display.
The working principle of the utility model is as follows:
firstly, connecting the output end of the camera 7 with the input end of an external display so that the external display normally displays images; then, the movable part 2 is rotated, and the movable part 2 is driven to slide in the positioning hole part 5 through the matching of the threaded shaft part 9 and the threaded hole part 6, so that the position of the camera 7 can be adjusted, and the distance between the camera 7 and the tube lens 18 is adjusted. And when a clear image is seen on an external display, screwing the tightening bolt to enable the left clamping arm 10 and the right clamping arm 11 to tightly hold the movable part 2 on the fixed part 1. The position of the camera 7 can be finely adjusted through the structure, so that the back focal length of the optical module can be finely adjusted, the adjustment is convenient, the time consumption is short, and the image quality can be adjusted on line; in addition, the structure has the advantages of small number of parts, simple structure and low manufacturing cost, improves the assembly efficiency and shortens the production period.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A back focal length adjusting and fixing structure of an optical module is characterized by comprising a fixed part (1), a movable part (2) and a locking device (3); wherein the content of the first and second substances,
the fixing part (1) is provided with a mounting hole (4), and the mounting hole (4) is provided with a positioning hole part (5) and a threaded hole part (6);
the movable part (2) is suitable for mounting a camera (7), and the movable part (2) is provided with a positioning shaft part (8) which is matched with the positioning hole part (5) and is connected in the positioning hole part (5) in a sliding fit manner;
the movable part (2) is also provided with a threaded shaft part (9) which is in threaded connection with the threaded hole part (6) and is suitable for driving the movable part (2) to slide along the positioning hole part (5) when the movable part (2) is rotated;
the locking device (3) is connected to the fixed part (1) and is suitable for locking and fixing the movable part (2) on the fixed part (1) when the movable part (2) slides in place along the positioning hole part (5).
2. The optical module back focal length adjustment fixing structure according to claim 1, wherein the locking device (3) comprises a left arm (10), a right arm (11) and a tightening mechanism; wherein the content of the first and second substances,
the fixed end of the left clamping arm (10) and the fixed end of the right clamping arm (11) are respectively connected to the fixed part (1);
the tightening mechanism is connected between the movable end of the left clamping arm (10) and the movable end of the right clamping arm (11) and is suitable for moving to drive the movable end of the left clamping arm (10) and the movable end of the right clamping arm (11) to be folded so as to enable the movable part (2) to be connected on the fixed part (1) in a clasping mode.
3. The optical module back focal length adjusting fixing structure according to claim 2, wherein the tightening mechanism includes a tightening bolt, a connecting hole (12) and a bolt hole (13); wherein the content of the first and second substances,
the connecting hole (12) is formed in any one of the movable end of the left clamping arm (10) and the movable end of the right clamping arm (11);
the bolt hole (13) is formed in the rest one of the movable end of the left clamping arm (10) and the movable end of the right clamping arm (11);
the tightening bolt penetrates through the connecting hole (12) and is in threaded connection with the bolt hole (13) and is suitable for being screwed to drive the movable end of the left clamping arm (10) and the movable end of the right clamping arm (11) to be folded.
4. The optical module back focal length adjustment fixing structure of claim 2, wherein the left arm (10) and the right arm (11) are respectively integral with the fixing member (1);
separation grooves (14) are respectively arranged between the lower end part of the left clamping arm (10) and the fixed part (1) and between the lower end part of the right clamping arm (11) and the fixed part (1);
and a clamping gap (15) is arranged between the movable end of the left clamping arm (10) and the movable end of the right clamping arm (11).
5. The optical module back focal length adjustment fixing structure according to claim 1, wherein a screw action portion (16) adapted to be adapted to a screw tool so that the movable member (2) is driven to rotate by the screw tool is provided on an outer peripheral portion of the movable member (2).
6. The optical module back focal length adjustment fixing structure according to claim 1, wherein a light passage (17) is provided in the movable member (2), and the camera (7) is connected to the movable member (2) and located on an upward extending path of the light passage (17).
7. The optical module back focal length adjustment fixing structure according to claim 6, further comprising a tube lens (18) and an objective lens (19), wherein the tube lens (18) and the objective lens (19) are respectively located on a downward extending path of the optical channel (17), and the tube lens (18) and the objective lens (19) are respectively coaxially arranged with the camera (7).
8. The optical module back focal length adjustment fixing structure according to claim 7, wherein the tube lens (18) is located between the objective lens (19) and the fixing member (1).
9. The optical module back focal length adjustment fixing structure according to claim 7, further comprising a bracket, wherein the fixing member (1), the tube lens (18) and the objective lens (19) are connected to the bracket.
10. The optical module back focal length adjustment fixing structure of claim 1, wherein the output end of the camera (7) is connected with the input end of an external display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023233046.8U CN214375497U (en) | 2020-12-28 | 2020-12-28 | Optical module back focal length adjusting and fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023233046.8U CN214375497U (en) | 2020-12-28 | 2020-12-28 | Optical module back focal length adjusting and fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214375497U true CN214375497U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023233046.8U Active CN214375497U (en) | 2020-12-28 | 2020-12-28 | Optical module back focal length adjusting and fixing structure |
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| Country | Link |
|---|---|
| CN (1) | CN214375497U (en) |
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- 2020-12-28 CN CN202023233046.8U patent/CN214375497U/en active Active
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