CN215986682U - Lens adjusting device for closed system - Google Patents
Lens adjusting device for closed system Download PDFInfo
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- CN215986682U CN215986682U CN202122107364.8U CN202122107364U CN215986682U CN 215986682 U CN215986682 U CN 215986682U CN 202122107364 U CN202122107364 U CN 202122107364U CN 215986682 U CN215986682 U CN 215986682U
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Abstract
The disclosure relates to a lens adjusting device for a closed system, and belongs to the technical field of optics. The lens adjusting device includes: a closed housing; the mirror frame is arranged in the closed shell and used for mounting an optical reflector; the first end of the adjusting component is connected with the first side surface of the mirror frame, and the second end of the adjusting component penetrates through the closed shell and is arranged on the outer side wall of the closed shell; the adjusting assembly can be adjusted in a telescopic mode in a first direction, and the first direction is a connecting line direction of the first end and the second end; the first side of the mirror frame is parallel to the mirror surface of the optical reflector mounted on the mirror frame. The device provided by the utility model can enable the optical system to be adjusted to be completely arranged in a clean closed environment, namely, the position or the pitching angle of the optical reflector can be adjusted, and the device has the advantages of small volume, light weight and low cost.
Description
Technical Field
The present disclosure relates to the field of optical technology, and more particularly, to a lens adjustment device for a closed system.
Background
Due to the complexity and high precision of the optical system, the required precision of the optical system is difficult to ensure through design and machining, and the coaxiality and inclination of each module in an optical path are generally required to be adjusted. Currently, the adjustment of an optical system has different adjustment schemes according to the specific module and actual requirements of the system.
The debugging of most of the existing spectrometer modules is carried out by taking a fixed light source as incident light under the condition of a dark clean room, adjusting an adjustable mechanism to debug light paths, and fixing each light path module and sealing a cover after the debugging is finished. The existing adjusting mechanism mainly comprises a mirror bracket (such as a reflection spectroscopy mirror bracket and the like), an adjusting nut, a support, a tension spring, a jackscrew, a ball and the like, on one hand, the structure is complex, the size of the final spectrometer is large, and a severe challenge is provided for the design requirements of product miniaturization and light weight, and on the other hand, the cost of the adjusting mechanisms is high. In addition, all optical lenses of the spectrometer need to be finally packaged in the shell after debugging is completed, so that the requirement on debugging environment is high, the debugging must be carried out in a clean room and a dark room without stray light, the construction of the clean room is a huge expenditure for general small enterprises, and the capital pressure of the small enterprises is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lens adjusting device for a closed system, which is used for solving the problems of complex structure, large volume and weight and high cost of the optical adjusting system of the existing spectrometer.
The technical scheme provided by the utility model is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a lens adjustment device usable with a closure system, comprising:
a closed housing;
the mirror frame is arranged in the closed shell and used for mounting an optical reflector;
the first end of the adjusting component is connected with the first side surface of the mirror frame, and the second end of the adjusting component penetrates through the closed shell and is arranged on the outer side wall of the closed shell; the adjusting assembly can be adjusted in a telescopic mode in a first direction, and the first direction is a connecting line direction of the first end and the second end; the first side of the mirror frame is parallel to the mirror surface of the optical reflector mounted on the mirror frame.
In one embodiment, the adjustment assembly includes at least one stud assembly;
one end of the stud component is in threaded connection with the first side face of the mirror frame, and the other end of the stud component is located on the outer side wall of the closed shell.
In one embodiment, the stud assembly includes: a first bolt and a second bolt;
a first threaded hole with a first internal thread is formed in the first side face of the mirror frame, and the first threaded hole is at a first preset depth;
the tail part of the first bolt is provided with a first external thread, and the head part of the first bolt is provided with a second external thread; the first external thread is matched with the first internal thread, and the tail part of the first bolt is connected with the mirror frame in a matched manner through the first internal thread and the first external thread;
the tail part of the second bolt is provided with a second threaded hole with a second internal thread and a second preset depth, and the head part of the second bolt is provided with a third external thread; the second external thread is matched with the second internal thread, and the head of the first bolt is in fit connection with the tail of the second bolt through the second internal thread and the second external thread;
a third threaded through hole with third internal threads is formed in the outer side wall of the closed shell; the third external thread is matched with the third internal thread, and the screw rod of the second bolt is matched and connected with the outer side wall of the closed shell through the third internal thread and the third external thread.
In one embodiment, the adjustment assembly further comprises:
the elastic reset component is arranged along the first direction, one end of the elastic reset component is fixed on the mirror frame, the other end of the elastic reset component is positioned on the outer side wall of the closed shell, and the elastic reset component has elastic reset capacity along the first direction.
In one embodiment, a first sinking platform which is inwards concave is arranged on the opposite side of the first side surface of the mirror frame, a second sinking platform which is inwards concave and specially shaped is arranged on the first sinking platform, and the second sinking platform and the first side surface are communicated through a through hole; the first sinking platform is used for mounting an optical reflector;
the elastic reset component is a tension spring; one end of the tension spring is installed on the outer side wall of the closed shell, and the other end of the tension spring is installed in the second sinking platform of the mirror frame.
In one embodiment, the second sinking platform is located at the center of the first sinking platform.
In one embodiment, the adjustment assembly includes three stud assemblies, and the first side of the frame has three first threaded holes for connecting the three stud assemblies, respectively;
two first threaded holes in the three first threaded holes are arranged along the horizontal direction, and the rest one threaded hole and the other two first threaded holes are not in the same horizontal plane.
In one embodiment, the adjustment assembly includes three stud assemblies, and the first side of the frame has three first threaded holes for connecting the three stud assemblies, respectively;
the three first threaded holes are connected in pairs to form a regular triangle, and the center of the regular triangle is coincided with the center of the first sinking platform in the first direction.
The lens adjusting device for a closed system provided by the present disclosure has the following beneficial effects:
the optical reflector is adjusted by the adjusting component with the adjusting end positioned outside the closed shell, and the optical system to be adjusted is completely arranged in a clean closed environment in the adjusting process, so that the requirement on the environment in the conventional debugging method can be reduced, namely the debugging requirement can be met in a normal workshop. In addition, the existing adjusting mechanism with a complex structure is not used, the adjusting component is simplified to penetrate through the closed shell, and the whole size of the closed optical system can be further reduced. Furthermore, two simple and easily-obtained parts of the screw column group and the tension spring are adopted to realize the adjusting assembly, so that the whole adjusting structure is small in whole size, and the product is convenient to miniaturize and design and implement in light weight.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of an embodiment of a lens adjustment apparatus for a closed system;
FIG. 2 is a schematic view of the lens adjusting device usable in the closure system of FIG. 1 without showing the internal structure of the upper cover of the closure housing;
FIG. 3 is another schematic angular view of the lens adjustment apparatus of FIG. 2;
FIG. 4 is a partial cross-sectional view of a lens adjustment device that can be used in a closure system according to an embodiment of the present invention;
fig. 5 is a schematic view of a structure of the frame 2 of fig. 4;
fig. 6 is another side view of the frame 2 of fig. 5;
fig. 7 is a schematic view of a positional arrangement of three first threaded holes 25 on the first side 21 of the frame 2.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic structural diagram of an external shape of a lens adjustment device for a closure system according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of the lens adjustment device for a closure system shown in fig. 1 without showing an internal structure of an upper cover of a closure housing thereof, and fig. 3 is another schematic angular diagram of the lens adjustment device shown in fig. 2. As shown in fig. 1 to 3, the present invention provides a lens adjusting apparatus including: the device comprises a closed shell 1, a mirror frame 2 and an adjusting component 3; the lens frame 2 is arranged in the closed shell 1 and used for mounting an optical reflector 5; the first end of the adjusting component 3 is connected with the first side 21 of the spectacle frame 2, and the second end passes through the closed shell 1 and is arranged on the outer side wall of the closed shell 1. The adjusting component 3 can be telescopically adjusted in a first direction, and the first direction is a connecting line direction of a first end and a second end of the adjusting component 3; the first side 21 of the frame 2 is parallel to the mirror surface of the optical mirror 5 mounted thereon.
In the lens adjusting device for the closed system provided by the embodiment of the utility model, the adjusting component 3 is adjusted to extend and retract in the first direction, so that the adjusting component 3 pushes the lens frame 2 to move in the first direction to adjust the position of the lens frame 2 in the closed shell 1, and the optical reflector 5 is fixed on the lens frame 2, thereby realizing indirect adjustment of the optical reflector 5. The optical system to be adjusted is completely arranged in a clean closed environment in the adjusting process, the requirement on the environment in the conventional debugging method can be reduced, namely the debugging requirement can be met in a normal workshop, and the adjusting cost is reduced.
In an alternative embodiment, the above-mentioned adjustment assembly 3 comprises at least one stud assembly, one end of which is screwed to the first side 21 of the frame 2 and the other end of which is located on the outer side wall of the closed casing 1. In this embodiment, adjusting part realizes for bolt assembly, realizes the flexible regulation on the first direction through threaded connection mode, adjusts structure with low costs, and whole size is less, the product miniaturization of being convenient for, lightweight design.
Further, the adjusting assembly may further include an elastic reset assembly, the elastic reset assembly is installed along the first direction, one end of the elastic reset assembly is fixed on the mirror frame 2, the other end of the elastic reset assembly is located on the outer side wall of the closed shell 1, the elastic reset assembly has an elastic reset capability along the first direction, and the mirror frame 2 can increase the stability of the mirror frame under the action of the thrust of the bolt assembly and the reset tension of the elastic reset assembly (opposite to the thrust direction of the bolt assembly).
Fig. 4 is a partial sectional view of a lens adjusting apparatus for a closed system according to an embodiment of the present invention, as shown in fig. 4, which includes a closed housing 1, a frame 2, and an adjusting assembly 3. The adjustment assembly 3 comprises at least one stud assembly as described above, preferably, as shown in fig. 4, the bolt assembly comprising: a first bolt 31 and a second bolt 32. A first threaded hole with a first internal thread is formed in the first side surface 21 of the spectacle frame 2, and the first threaded hole has a first preset depth; the afterbody of first bolt 31 is equipped with first external screw thread, and the head is equipped with the second external screw thread, first external screw thread with first internal thread phase-match, first bolt 31 afterbody with picture frame 2 passes through first internal thread is connected with first external screw thread cooperation. The tail part of the second bolt 32 is provided with a second threaded hole with a second internal thread with a second preset depth, the head part of the second bolt 32 is provided with a third external thread, the second external thread is matched with the second internal thread, and the head part of the first bolt 31 is matched and connected with the tail part of the second bolt 32 through the second internal thread and the second external thread. And a third threaded through hole with a third internal thread is formed in the outer side wall of the closed shell 1, the third external thread is matched with the third internal thread, and the screw rod of the second bolt 32 is matched and connected with the outer side wall of the closed shell 1 through the third internal thread and the third external thread.
The lens adjusting device for a closed system shown in fig. 4 is configured to mount the first bolt 31 in the first threaded hole of the frame 2, fix the optical mirror 5 on the frame 2 through optical cement or other methods, screw the second bolt 32 into the third threaded through hole on the outer sidewall of the closed housing 1, make the second internal thread of the second bolt 32 cooperatively connect with the second external thread of the first bolt 31, and finally close the entire optical system by covering the upper cover of the closed housing 1, and then adjust the stud assembly formed by the first bolt 31 and the second bolt 32 to adjust the position of the optical mirror inside the closed housing 1 along the first direction.
It is worth noting that the second bolt 32 in fig. 4 is designed as a cylindrical screw without a nut, and correspondingly, a third threaded through hole with a third internal thread is formed on the outer side wall of the close housing 1 to match with the third external thread on the head of the second bolt 32. Obviously, in addition to the manner shown in fig. 4, the second bolt 32 may also be a bolt with a nut, and in this embodiment, only the third external thread is arranged outside the nut of the second bolt 32. In addition, other similar embodiments may be adopted, and are not described herein.
Fig. 5 is a schematic structural view of the lens frame 2 in fig. 4, as shown in fig. 5, a first sinking platform 22 is provided at the opposite side of the first side 21 of the lens frame 2, the first sinking platform 22 is provided with a second sinking platform 23 with a concave profile, and the second sinking platform 23 is communicated with the first side 21 through a via hole 24; the first stage 22 is used to mount an optical mirror. Preferably, the elastic restoring component is a tension spring 33, as shown in fig. 4 and 5, one end of the tension spring 33 is installed on the outer side wall of the close casing 1, the other end is installed in the second sinking platform 23 of the mirror frame 2, and the telescopic spring part between the two ends of the tension spring 33 passes through the through hole 24. As shown in fig. 4, corresponding to the lens frame 2 shown in fig. 4, the outer side wall of the close casing 1 is further provided with a third sinking platform 11, one end of a tension spring 33 is installed in the third sinking platform 11, and the other end is installed in the second sinking platform 23 of the lens frame 2.
Preferably, as shown in fig. 5, the second sinking platform 23 is located at the center of the first sinking platform 22, so that the force point of the tension spring 33 to the lens frame 2 can be located at the center of the lens frame 2, the force is uniformly applied, and the lens frame 2 can move along the first direction without being deviated to other directions.
Fig. 6 is another side view of the lens frame 2 shown in fig. 5. as shown in fig. 5, the first side surface 21 of the lens frame 2 has three first threaded holes 25, two of the three first threaded holes 25 are horizontally arranged, and the remaining one first threaded hole 25 is not in the same horizontal plane as the other two first threaded holes 25. for example, as shown in fig. 6, the third first threaded hole 25 is located above the other two first threaded holes 25, and preferably, the lower left first threaded hole 25 is connected to the upper first threaded hole 25 and the right first threaded hole 25 respectively to form an angle of 90 °. In this embodiment, the adjusting assembly 3 comprises three stud assemblies, which are respectively connected to three first threaded holes 25 on the frame 2. In this embodiment, the mirror frame 2 can be adjusted in the horizontal and vertical directions by providing different bolt assemblies in the horizontal and vertical directions.
In another alternative embodiment, the adjustment assembly 3 comprises three stud assemblies, and the first side 21 of the frame 2 has three first threaded holes for connecting the three stud assemblies, respectively; the three first threaded holes are connected two by two to form a regular triangle, for example, as shown in fig. 7, the center of the regular triangle coincides with the center of the first sinking platform in the first direction, so that the inclination angle of the mirror frame 2 in multiple directions can be adjusted.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A lens adjustment device usable with a closure system, comprising:
a closed casing (1);
the lens frame (2) is arranged in the closed shell (1) and is used for mounting an optical reflector;
the first end of the adjusting component (3) is connected with the first side surface (21) of the mirror frame (2), and the second end of the adjusting component penetrates through the closed shell (1) and is arranged on the outer side wall of the closed shell (1); the adjusting assembly (3) can be telescopically adjusted in a first direction, and the first direction is a connecting line direction of the first end and the second end; the first side surface (21) of the mirror frame (2) is parallel to the mirror surface of the optical reflector mounted on the mirror frame.
2. Lens adjustment device usable in a closure system according to claim 1, characterized in that the adjustment assembly (3) comprises at least one stud assembly;
one end of the stud component is in threaded connection with the first side face (21) of the mirror frame (2), and the other end of the stud component is located on the outer side wall of the closed shell (1).
3. The lens adjustment apparatus usable with a closure system of claim 2, wherein the stud assembly comprises: a first bolt (31) and a second bolt (32);
a first threaded hole with a first internal thread and a first preset depth is formed in the first side surface (21) of the mirror frame (2);
the tail of the first bolt (31) is provided with a first external thread, and the head of the first bolt is provided with a second external thread; the first external thread is matched with the first internal thread, and the tail part of the first bolt (31) is connected with the mirror frame (2) in a matched manner through the first internal thread and the first external thread;
the tail part of the second bolt (32) is provided with a second threaded hole with a second internal thread and a second preset depth, and the head part of the second bolt is provided with a third external thread; the second external thread is matched with the second internal thread, and the head of the first bolt (31) is connected with the tail of the second bolt (32) in a matched manner through the second internal thread and the second external thread;
a third threaded through hole with a third internal thread is formed in the outer side wall of the closed shell (1); the third external thread is matched with the third internal thread, and the screw rod of the second bolt (32) is matched and connected with the outer side wall of the closed shell (1) through the third internal thread and the third external thread.
4. Lens adjustment device usable in a closure system according to claim 2 or 3, characterized in that said adjustment assembly (3) further comprises:
the elastic reset component is installed along the first direction, one end of the elastic reset component is fixed on the mirror frame (2), the other end of the elastic reset component is located on the outer side wall of the closed shell (1), and the elastic reset component has elastic reset capacity along the first direction.
5. Lens adjusting device usable in a closure system according to claim 4, characterized in that the opposite side of the first side (21) of said frame (2) has a first sunken platform (22) concave inwards, said first sunken platform (22) has a second sunken platform (23) shaped inwards, said second sunken platform (23) and said first side (21) are connected by a through hole (24); the first sinking platform (22) is used for mounting an optical reflector;
the elastic reset component is a tension spring (33); one end of the tension spring (33) is installed on the outer side wall of the closed shell (1), and the other end of the tension spring is installed in the second sinking platform (23) of the mirror frame (2).
6. Lens adjustment device usable in a closure system according to claim 5, characterized in that the second sinkers (23) are located in the center of the first sinkers (22).
7. Lens adjustment device usable in a closure system according to claim 5, characterized in that said adjustment assembly (3) comprises three stud assemblies, said frame (2) having on a first side (21) three first threaded holes for connection respectively to said three stud assemblies;
two first threaded holes in the three first threaded holes are arranged along the horizontal direction, and the rest one threaded hole and the other two first threaded holes are not in the same horizontal plane.
8. Lens adjustment device usable in a closure system according to claim 5, characterized in that said adjustment assembly (3) comprises three stud assemblies, said frame (2) having on a first side (21) three first threaded holes for connection respectively to said three stud assemblies;
the three first threaded holes are connected in pairs to form a regular triangle, and the center of the regular triangle is coincided with the center of the first sinking platform in the first direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122107364.8U CN215986682U (en) | 2021-09-02 | 2021-09-02 | Lens adjusting device for closed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122107364.8U CN215986682U (en) | 2021-09-02 | 2021-09-02 | Lens adjusting device for closed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215986682U true CN215986682U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122107364.8U Active CN215986682U (en) | 2021-09-02 | 2021-09-02 | Lens adjusting device for closed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215986682U (en) |
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2021
- 2021-09-02 CN CN202122107364.8U patent/CN215986682U/en active Active
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