CN211061760U - High stable optical path folding angle mirror fixing device - Google Patents
High stable optical path folding angle mirror fixing device Download PDFInfo
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- CN211061760U CN211061760U CN201922182943.1U CN201922182943U CN211061760U CN 211061760 U CN211061760 U CN 211061760U CN 201922182943 U CN201922182943 U CN 201922182943U CN 211061760 U CN211061760 U CN 211061760U
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- optical path
- angle mirror
- bottom plate
- lens
- fixing device
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Abstract
The utility model discloses a high stable optical path folds angle mirror fixing device, including slip table, switching bottom plate, angle mirror adjustment frame and lens. The reflecting surfaces of the lenses are perpendicular to the bottom plane of the sliding table, and are respectively fixed on the angle mirror adjusting frame by glue, and then the reflecting surfaces of the two lenses are mutually perpendicular by adjusting the angle mirror adjusting frame. After a beam of incident light parallel to the bottom plane of the sliding table passes through the pair of mutually vertical lenses of the reflecting surfaces, the reflected light is always parallel to the incident light. The two corner mirror adjusting frames are combined and fixed with the elastic pad and the flat pad by screws and are stably fixed on the adapter bottom plate platform; the bottom of the angle mirror adjusting frame is provided with two grinding convex platforms which can adjust the vertical offset of the lenses brought by the mutually vertical reflecting surfaces of the two lenses. The utility model discloses it is fixed firm, stable in structure, the back is installed to the lens, and the butt joint light path does not need the debugging, and the installation effectiveness is fast, can the effectual stability of guaranteeing the laser compressor, promotes the production efficiency of laser instrument and the improvement of stability.
Description
Technical Field
The utility model belongs to the laser field, more specifically say, relate to a high stable optical path folding angle mirror fixing device for laser instrument is adjusted and is used.
Background
At present, laser is widely applied in the fields of laser ranging, radar, biology, laser spectroscopy, photoelectric sampling technology, communication technology, optical holographic storage technology, laser nuclear fusion, hyperfine processing, blindness-causing weapons and the like. The long-term stability of the laser is a critical problem affecting the continuous application of the laser, and particularly, the laser power and energy output by the laser and the instability of the laser power output directly affect the processing effect in the laser cutting, welding and micromachining processes, so that the inferior products of finished products are increased, the product quality is reduced, and the stability of the laser is improved, which is an important problem facing the application of the laser stability.
At present, a Chirp Pulse Amplification (CPA) technology is generally adopted for an ultrashort ultrafast laser source with high power and high energy, namely, pulse broadening is carried out on ultrashort ultrafast pulses, the peak power of the pulses is reduced, the damage of high peak power to devices is effectively avoided in the laser amplification process, high-power and high-energy laser pulse output is better obtained, and finally, the pulse width is compressed through a pulse compressor, the peak power of the pulses is improved, and the intensity of the light pulses is enhanced. The compression of pulse width is mostly realized by folding the optical path using mutually perpendicular angle mirrors. The pair of folding angle mirrors need to be perpendicular to each other, and the reflecting surfaces of the mirrors are perpendicular to the horizontal planes of the incident laser and the emergent laser so as to ensure an effective optical path, so that the stability of the optical path folding angle mirrors is very important for obtaining stable laser power and energy.
SUMMERY OF THE UTILITY MODEL
The utility model provides a corner mirror fixing device is folded to high stable optical path, it is by slip table, switching bottom plate, corner mirror adjustment frame through screw, bullet pad, flat fastening of filling up, constitutes one set of stable fixing device, can obtain stable laser output.
The purpose of the utility model is realized through the following:
a high-stability optical path folding corner mirror fixing device comprises a sliding table, a switching bottom plate, a corner mirror adjusting frame and a lens; the device is characterized in that after the sliding table, the switching bottom plate and the corner mirror adjusting frame are combined into a whole, the bonding of the lens is monitored by a special five-dimensional adjusting tool and a monitoring platform, a fixed adhesive bonding method is adopted, the bonding reflecting surface of the lens can be ensured to be vertical to the bottom surface of the sliding table, and then the two corner mirrors are mutually vertical through the fixed tightness of the fixing through holes of the corner mirror adjusting frame, so that the reflecting surface of the lens is effectively ensured to be mutually vertical and is vertical to the horizontal plane of incident light and reflected light, the reflected light can be ensured to be in the same plane with the incident light, an effective optical path can be ensured, after the adjustment of the whole set of fixing device is completed, the lens is fastened by elastic pads and flat pads.
The sliding table is a guide rail type movable sliding table, the table top is square, and the size of the table top is 25-125 mm; the parallelism of the upper surface and the lower surface is 10-50 mu M, the moving stroke of the guide rail is +/-3-20 mm, and the table top is provided with a switching screw hole with the size of M2-M6;
the bottom plate of the adapter bottom plate is rectangular, the thickness dimension is determined according to the required light height of the laser, the length dimension and the width dimension are determined according to the dimension of the selected angle mirror, and the two angle mirrors are symmetrically arranged on the bottom plate along the central line of the long edge at an angle of 45 degrees; the upper surface and the lower surface of the adapter bottom plate are processed to ensure certain parallelism, and the parallelism of the upper surface and the lower surface is 20-100 mu m; each corner mirror adjusting frame is provided with two fixed screw holes with the size of M2-M6 on the bottom plate;
the angle mirror adjusting frames are of rectangular structures, and the two adjusting frames are symmetrically arranged on the switching base plate along the center line of the long edge of the base plate at an angle of 45 degrees; each corner mirror adjusting frame is provided with two adjusting and fixing circular through holes, and the size of each circular through hole is 2.5-8 mm; the bottom surface of the adjusting frame is provided with 2 flat convex platforms, the thickness of each flat convex platform is 100-2000 mu m, and the flat convex platforms are tightly attached to the adapter bottom plate after being ground; the lens supporting surface is a plane convex step, is parallel to the plane convex step and is used for coarse positioning of lens bonding and dispensing and fixing of fixing glue;
after the convex platform on the bottom surface of the corner mirror adjusting frame is ground and fastened with the switching bottom plate and the sliding table, the coarse positioning is carried out by depending on the lens bonding surface of the corner mirror adjusting frame, the position of the corner mirror is adjusted by utilizing a five-dimensional adjusting tool and a monitoring platform, after horizontal errors of the sliding table, the bottom plate and the adjusting mirror frame are eliminated together, the adjustment is carried out until the reflecting surface of the lens is vertical to the horizontal plane of incident light and reflected light, and the curing and bonding are carried out by using fixing glue, so that the curing and bonding of two corner mirrors on the;
after the bonding of the corner mirror adjusting frame is finished, the tightness of the fixing through holes is adjusted on the monitoring platform to be vertical to the two lenses, the horizontal error of the two beams of light is adjusted to be less than +/-10 ", and then all connected parts are fastened, so that the stability of the system can be ensured.
After the system is fastened, the sliding table moves the guide rail platform, so that the optical path distance can be effectively changed, the compression of pulse width is realized, and stable laser power and energy are obtained.
The utility model adopts the above structure, this structural design is reasonable, and the precision is high, and is reliable and stable, adjusts simple to operate.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings of the present invention will be briefly described below with reference to the embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a side view of the gonioscopic adjustment mount;
fig. 4 is a side view of the present invention.
Description of reference numerals:
1-a slide table; 2-adapting the bottom plate; 3-angle mirror adjusting bracket.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings, so that the functions and features of the present invention can be better understood.
Fig. 1 shows a high-stability optical path folding corner mirror fixing device according to an embodiment of the present invention, which includes a sliding table 1, a switching bottom plate 2, and a corner mirror adjusting frame 3. Wherein slip table 1, switching bottom plate 2, angle mirror adjustment frame 3 is through screw and bullet pad, flat fastening of filling up and constitute, realizes the high stability of structure. Two angle mirror lens bonds and adjusts frock adjusting position and monitoring platform monitoring through dedicated five dimension, adopt fixed glue to connect on the lens bonding face of angle mirror adjustment 3, can guarantee that its lens plane of reflection keeps perpendicular with slip table 1 bottom surface after folding angle mirror bonds, two angle mirrors of mutual perpendicularity are realized to rethread angle mirror adjustment frame 2 fixed through hole's fixed elasticity, thereby two angle mirror lens planes of reflection of effectual assurance are perpendicular to each other, and with incident light, the reverberation horizontal plane is perpendicular, guarantee that the reverberation can be in same plane with the incident light, can guarantee effectual optical path, adopt the bullet pad after whole fixing device adjustment is accomplished, the flat pad fastening, there is fine stability, through removing the slip table guide rail, can effectual change folding optical path, can obtain stable laser power and energy.
The sliding table 1 is a guide rail type movable sliding table, and the optical path can be adjusted and changed by moving the guide rail; the lower surface of the sliding table 1 is an installation reference surface of the whole system, the upper surface is used for fixing the switching base plate 2, and the upper surface and the lower surface are parallel to each other.
Referring to fig. 2, a top view of the present invention is shown. Switching bottom plate 2 be square structure, the lower surface is laminated with slip table 1, the upper surface is used for installing angle mirror adjustment frame 3, two angle mirror adjustment frames along the long limit central line 45 symmetric distributions of bottom plate, the upper and lower surface is parallel to each other, is provided with angle mirror adjustment frame installation screw on the switching bottom plate.
Referring to fig. 3, a side view of the gonioscopic adjustment frame 2 is shown. The surface A is a lens bonding surface and is used for coarse positioning during lens bonding, the surface B is of a flat boss structure and is tightly attached to the switching base plate 2 after being ground, and the corner mirror adjusting frame is provided with two adjusting and fixing circular through holes for adjustment and fastening.
Fig. 4 is a side view of the present invention. Two angle mirror lenses are monitored through dedicated five-dimensional adjustment tool adjusting positions and monitoring platforms, and can be reduced when the angle mirror lenses are bonded accumulated flatness errors after the sliding table 1, the switching bottom plate 2 and the angle mirror adjusting frame 3 are overlapped and combined, so that the reflecting surfaces of the lenses are parallel to the lower surface of the sliding table 1. The lens bonding is finished, the two adjusting and fixing circular through holes are adjusted to be vertical to the reflecting surfaces of the two corner mirror lenses, and the error can be controlled within +/-10 ″.
What has been described above is only the preferred embodiment of the present invention, not for limiting the scope of the present invention, but various changes can be made to the above-mentioned embodiment of the present invention. All the simple and equivalent changes and modifications made according to the claims and the content of the specification of the present invention fall within the scope of the claims of the present invention. The present invention is not described in detail in the conventional technical content.
Claims (4)
1. The utility model provides a high stable optical path folding corner mirror fixing device, includes slip table (1), switching bottom plate (2), corner mirror alignment jig (3) and lens, its characterized in that: the sliding table (1), the switching base plate (2) and the angle mirror adjusting frame (3) are combined and fastened with an elastic pad and a flat pad through screws; the lens is bonded and fixed on the step mounting surface of the corner mirror adjusting frame (3), and the mirror surface is vertical to the bottom surface of the sliding table (1).
2. The high-stability optical path folding corner mirror fixing device as claimed in claim 1, wherein the sliding table (1) is a guide rail type movable sliding table, the table top is square, the upper surface and the lower surface are parallel, and the table top is provided with a switching screw hole.
3. The high-stability optical path folding angle mirror fixing device as claimed in claim 1, wherein the adapter base plate (2) is rectangular and parallel to the upper surface and the lower surface; two fixing screw holes are arranged on the bottom plate, and two groups of screw holes are symmetrically arranged on the bottom plate along the center line of the long edge at 45 degrees.
4. The high-stability optical path folding corner mirror fixing device according to claim 1, wherein the corner mirror adjusting frame (3) is provided with 2 adjusting holes, the adjusting holes are round through holes, and the round through holes are symmetrically arranged about a vertical center line; the bottom surface is of a flat boss structure and is tightly attached to the adapter bottom plate (2); the angle lens adjusting frame is provided with a lens supporting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922182943.1U CN211061760U (en) | 2019-12-06 | 2019-12-06 | High stable optical path folding angle mirror fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922182943.1U CN211061760U (en) | 2019-12-06 | 2019-12-06 | High stable optical path folding angle mirror fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211061760U true CN211061760U (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922182943.1U Active CN211061760U (en) | 2019-12-06 | 2019-12-06 | High stable optical path folding angle mirror fixing device |
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| CN (1) | CN211061760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180537A (en) * | 2020-09-28 | 2021-01-05 | 北京大学 | Array mirror frame for measuring ultrafast optical signal |
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2019
- 2019-12-06 CN CN201922182943.1U patent/CN211061760U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180537A (en) * | 2020-09-28 | 2021-01-05 | 北京大学 | Array mirror frame for measuring ultrafast optical signal |
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