Manual adjustment beam shrinking lens barrel

Abstract

The utility model provides a manually-adjusted beam shrinking lens barrel, and belongs to the technical field of optical spectrum instruments. The manually-adjusted beam shrinking lens barrel comprises a fixed lens barrel, a locking nut is installed in the fixed lens barrel in a threaded mode, an emergent lens is arranged on the locking nut, a through opening is formed in the circumferential side wall of the fixed lens barrel, a rotating column is rotationally arranged on the outer wall of the fixed lens barrel, and the rotating column penetrates through the through opening to abut against the locking nut so that the rotating column can be in friction transmission fit with the locking nut. The manually-adjusted beam shrinking lens barrel is simple in structure, the focal length of laser at the emergent end of the beam shrinking lens is adjusted by manually adjusting the position of the emergent lens, the laser focal length is conveniently and rapidly adjusted, and the stability of the beam shrinking lens barrel is good.

Description

Technical Field

[0001] This disclosure relates to the field of spectroscopic instrument technology, and in particular to a manually adjustable beam-shrinking tube. Background Technology

[0002] When using fiber optic access to a spectrometer, because the divergence angle of the fiber is relatively large, a beam shrinking mirror is needed to increase the peak power density of the emitted laser, so that the large circular spot can be changed into a small circular spot and can be completely imaged into the collimating mirror inside the spectrometer.

[0003] In existing technologies, the laser focal length of a beam shrinking mirror is adjusted at both ends, that is, the focal lengths of the laser beam at the incident end and the laser beam at the emitting end are adjusted separately. However, this adjustment method has the problems of poor structural stability of the beam shrinking mirror tube and inconvenience in focal length adjustment.

[0004] To address the above issues, a manually adjustable beam-shrinking lens tube was designed. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a manually adjustable beam-shrinking lens barrel, which enables convenient adjustment of the laser focal length and improves the stability of the beam-shrinking lens barrel.

[0006] To achieve the aforementioned objectives of this utility model, the present disclosure adopts the following technical solution:

[0007] A manually adjustable beam-contraction lens barrel includes a fixed lens barrel with a locking nut threaded on its internal thread. An exit lens is mounted on the locking nut. A through-hole is provided on the circumferential side wall of the fixed lens barrel. A rotating column is rotatably mounted on the outer wall of the fixed lens barrel. The rotating column passes through the through-hole and abuts against the locking nut, so that the rotating column and the locking nut are engaged by frictional transmission.

[0008] In one exemplary embodiment of this disclosure, a mounting base communicating with the through-hole is provided on the outer wall of the fixed lens barrel, and the mounting base is open at one end away from the fixed lens barrel, and the rotating column is rotatably installed in the mounting base.

[0009] In one exemplary embodiment of this disclosure, the rotating column is sleeved on the rotating shaft and fixedly connected to the rotating shaft;

[0010] The rotating column is rotatably connected to the mounting base via the rotating shaft.

[0011] In one exemplary embodiment of this disclosure, the inner walls on both sides of the mounting base are respectively provided with first through holes of the same axis, and the two ends of the rotating shaft extend into the first through holes on the same side, and the rotating shaft is rotatably connected to the mounting base through the first through holes.

[0012] In one exemplary embodiment of this disclosure, the top end of the mounting base is provided with a second through hole communicating with the first through hole, and a set screw is spirally disposed in the second through hole. The bottom end of the set screw can extend into the first through hole and abut against the rotating shaft.

[0013] In one exemplary embodiment of this disclosure, the tip of the set screw can extend out of the second through hole.

[0014] In one exemplary embodiment of this disclosure, the set screw has a groove at its tip.

[0015] In one exemplary embodiment of this disclosure, the rotating post is a stud.

[0016] In one exemplary embodiment of this disclosure, the outer surface of the rotating column is provided with anti-slip texture.

[0017] The beneficial effects of this disclosure are:

[0018] This disclosure provides a manually adjustable beam-shrinking lens barrel. By manually rotating a rotating column, the friction transmission between the rotating column and the locking nut drives the locking nut to rotate, adjusting the position of the locking nut within the fixed lens barrel, thereby adjusting the position of the output lens and realizing the adjustment of the focal length of the laser at the output end. The laser focal length adjustment is convenient and quick, and the beam-shrinking lens barrel has high stability. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0020] Figure 1 This is a schematic diagram of the structure of a manually adjustable beam-shrinking lens tube in one embodiment of the present disclosure;

[0021] Figure 2 This is a top view of a manually adjusted telescope tube in one embodiment of the present disclosure;

[0022] Figure 3 This is a cross-sectional view of a manually adjusted telescope tube in one embodiment of this disclosure;

[0023] Figure 4 This is a schematic diagram of the structure of a set screw in one embodiment of the present disclosure.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Fixed lens barrel; 2. Locking nut; 3. Through port; 4. Rotating column; 5. Mounting base; 6. Rotating shaft; 7. First through hole; 8. Second through hole; 9. Set screw; 10. Groove. Detailed Implementation

[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0027] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0028] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0029] This disclosure provides a manually adjustable beam-shrinking lens tube, see [link]. Figures 1 to 3 The system includes a fixed lens barrel 1, a locking nut 2 installed on the internal thread of the fixed lens barrel 1, an exit lens on the locking nut 2, a through-hole 3 on the circumferential side wall of the fixed lens barrel 1, and a rotating column 4 rotatably installed on the outer wall of the fixed lens barrel 1. The rotating column 4 passes through the through-hole 3 and abuts against the locking nut 2, so that the rotating column 4 and the locking nut 2 are in frictional transmission cooperation.

[0030] In this embodiment, the manually adjustable beam-shrinking lens barrel consists of a fixed lens barrel 1, a locking nut 2, an exiting lens, and a rotating column 4. The locking nut 2 is threaded into the fixed lens barrel 1, and the exiting lens is mounted on the locking nut 2. The fixed lens barrel 1, the locking nut 2, and the exiting lens are arranged coaxially. A through-hole 3 communicating with the inner cavity of the fixed lens barrel 1 is opened on the side wall of the fixed lens barrel 1. The rotating column 4 is rotatably mounted on the outer wall of the fixed lens barrel 1. The axis of the rotating column 4 is parallel to the axis of the fixed lens barrel 1. The circumferential side wall of the rotating column 4 passes through the through-hole 3 and abuts against the locking nut 2. The outer wall of the rotating column 4 and the outer wall of the locking nut 2 are in frictional transmission cooperation. By rotating the rotating column 4, the locking nut 2 is driven to rotate, thereby adjusting the position of the exiting lens.

[0031] Compared to existing two-end adjustment methods, this manually adjustable beam-shrinking lens barrel allows for manual rotation of a rotating column. Through friction transmission between the rotating column and the locking nut, the locking nut is rotated, adjusting its position within the fixed lens barrel. This, in turn, adjusts the position of the output lens, enabling the adjustment of the laser's focal length at the output end. The laser focal length adjustment is convenient and quick, and the beam-shrinking lens barrel exhibits high stability.

[0032] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1 to 3 A mounting base 5 communicating with the opening 3 is provided on the outer wall of the fixed lens barrel 1. The end of the mounting base 5 away from the fixed lens barrel 1 is open, and the rotating column 4 is rotatably installed in the mounting base 5. In this way, the rotating column 4 can be quickly installed and can be easily rotated manually.

[0033] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1 to 3 The rotating column 4 is sleeved on the rotating shaft 6 and fixedly connected to the rotating shaft 6; the rotating column 4 is rotatably connected to the mounting base 5 through the rotating shaft 6. In this way, the rotating column 4 can be easily installed in the mounting base 5, and the rotating column 4 can be manually rotated.

[0034] Optionally, the axis of the rotating shaft 6 is parallel to the axis of the fixed lens tube 1.

[0035] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1 to 3 The mounting base 5 has coaxial first through holes 7 on its inner walls on both sides. The two ends of the rotating shaft 6 extend into the first through holes 7 on the same side, and the rotating shaft 6 is rotatably connected to the mounting base 5 through the first through holes 7. In this way, the rotating column 4 can be easily rotated within the mounting base 5.

[0036] Optionally, the axis of the first through hole 7 is parallel to the axis of the fixed lens tube 1.

[0037] Optionally, the rotating shaft 6 is movably installed within the first through hole 7. This allows for adjustment of the position of the rotating column 4 within the mounting base 5, facilitating frictional transmission between the rotating column 4 and the locking nut 2, and enabling the rotating column 4 to drive the locking nut 2 to rotate.

[0038] In one embodiment of this disclosure, rotating shafts 6 are respectively provided at both ends of the rotating column 4. The end of the rotating shaft 6 away from the rotating column 4 extends into the first through hole 7 on the same side and is movably connected to the mounting base 5.

[0039] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1 to 3 The mounting base 5 has a second through hole 8 at its top, which communicates with the first through hole 7. A set screw 9 is screwed into the second through hole 8, and the bottom end of the set screw 9 can extend into the first through hole 7 and abut against the rotating shaft 6. Thus, by rotating the set screw 9, the rotating shaft 6 can be locked, and the rotating column 4 can be fixed to prevent it from rotating.

[0040] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1 to 3 The set screw 9 has a second through hole 8 extending from its tip. This allows for easy rotation of the set screw 9.

[0041] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 4 The set screw 9 has a groove 10 at its top. This allows for quick and easy rotation of the set screw 9, thereby adjusting its position within the second through hole 8 and locking or releasing the rotating column 4.

[0042] In the above embodiments, when the top of the set screw 9 has a groove 10, the top of the set screw 9 can extend out of the second through hole 8, or it can always be in the second through hole 8; when the top of the set screw 9 extends out of the second through hole 8, a nut can be provided on the top of the set screw 9.

[0043] In one embodiment of this disclosure, the rotating post 4 is a stud. Thus, through the mutual friction between the rotating post 4 and the threads of the locking nut 2, the locking nut 2 is driven to move forward or backward, thereby improving the accuracy of the locking nut 2's position adjustment.

[0044] In one embodiment of this disclosure, the outer surface of the rotating column 4 is provided with anti-slip texture. This increases the friction between the rotating column 4 and the locking nut 2, facilitating the rotation of the rotating column 4 to drive the locking nut 2 to rotate, thereby enabling the locking nut 2 to move forward or backward.

[0045] In another embodiment of this disclosure, the rotating column 4 is rotatably mounted within the opening 3. This improves the aesthetics of the fixed lens barrel 1.

[0046] In the above embodiments, when the rotating column 4 is installed in the mounting base 5, the upper part of the rotating column 4 can extend out of the mounting base 5 or be parallel to the top surface of the mounting base 5; when the rotating column 4 is installed in the through-hole 3, the upper part of the rotating column 4 can extend out of the through-hole 3 or be parallel to the top of the through-hole 3.

[0047] It is understandable that when the rotating column 4 is rotated and installed in the through-hole 3, the first through hole 7 is opened on the inner walls of both sides of the through-hole 3, the second through hole 8 is opened on the outer wall of the fixed lens barrel 1, and the two ends of the rotating shaft 6 extend into the inner wall of the fixed lens barrel 1 through the second through hole 8.

[0048] In one embodiment of this disclosure, see Figures 1 to 4 The working process of this manually adjusted beam-shrinking lens tube is briefly described as follows:

[0049] In use, this invention first rotates the set screw 9, causing it to move upward within the second through hole 8, thus separating it from the rotating shaft 6. Then, the rotating column 4 is manually rotated. Through frictional transmission between the rotating column 4 and the locking nut 2, the locking nut 2 rotates. Through threaded transmission between the locking nut 2 and the fixed lens barrel 1, the locking nut 2 moves forward or backward within the fixed lens barrel 1, causing the exiting lens to move forward or backward within the fixed lens barrel 1, thus adjusting the position of the exiting lens. Once the exiting lens has moved to the appropriate position, the rotating column 4 is stopped, and the set screw 9 is rotated in the opposite direction, causing it to move downward within the second through hole 8, thus abutting against the rotating shaft 6 and locking the rotating shaft 6. This, in turn, locks the rotating column 4, preventing it from rotating and avoiding changes in the position of the exiting lens, thereby completing the adjustment of the laser focal length at the exiting end.

[0050] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A manually adjustable telescope tube, characterized in that, The system includes a fixed lens barrel (1), a locking nut (2) is installed on the internal thread of the fixed lens barrel (1), an exit lens is provided on the locking nut (2), the fixed lens barrel (1), the locking nut (2) and the exit lens are arranged on the same axis, a through-hole (3) is opened on the circumferential side wall of the fixed lens barrel (1), a rotating column (4) is rotatably arranged on the outer wall of the fixed lens barrel (1), and the axis of the rotating column (4) is parallel to the axis of the fixed lens barrel (1). The rotating column (4) passes through the through-hole (3) and abuts against the locking nut (2) so that the outer wall of the rotating column (4) and the outer wall of the locking nut (2) are in frictional transmission cooperation.

2. The manually adjustable beam-constricting tube according to claim 1, characterized in that, The fixed lens tube (1) is provided with a mounting base (5) that communicates with the opening (3) on its outer wall. The mounting base (5) is open at one end away from the fixed lens tube (1), and the rotating column (4) is rotatably installed in the mounting base (5).

3. The manually adjustable telescope tube according to claim 2, characterized in that, The rotating column (4) is sleeved on the rotating shaft (6) and is fixedly connected to the rotating shaft (6); The rotating column (4) is rotatably connected to the mounting base (5) via the rotating shaft (6).

4. The manually adjustable telescope tube according to claim 3, characterized in that, The mounting base (5) has coaxial first through holes (7) on its inner walls on both sides. The two ends of the rotating shaft (6) extend into the first through holes (7) on the same side. The rotating shaft (6) is rotatably connected to the mounting base (5) through the first through holes (7).

5. The manually adjustable telescope tube according to claim 4, characterized in that, The mounting base (5) has a second through hole (8) at its top end that communicates with the first through hole (7). A set screw (9) is spirally arranged inside the second through hole (8). The bottom end of the set screw (9) can extend into the first through hole (7) and abut against the rotating shaft (6).

6. The manually adjustable telescope tube according to claim 5, characterized in that, The top of the set screw (9) can extend out of the second through hole (8).

7. The manually adjustable telescope tube according to claim 5, characterized in that, The set screw (9) has a groove (10) at its top end.

8. The manually adjustable beam-constricting tube according to claim 1, characterized in that, The rotating column (4) is a stud.

9. The manually adjustable telescope tube according to claim 1, characterized in that, The outer surface of the rotating column (4) is provided with anti-slip texture.

Images