CN104752950B - A kind of collimation temperature control sealed installing seat of laser - Google Patents
A kind of collimation temperature control sealed installing seat of laser Download PDFInfo
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- CN104752950B CN104752950B CN201510159702.9A CN201510159702A CN104752950B CN 104752950 B CN104752950 B CN 104752950B CN 201510159702 A CN201510159702 A CN 201510159702A CN 104752950 B CN104752950 B CN 104752950B
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- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 48
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 230000005291 magnetic effect Effects 0.000 claims description 19
- 238000002955 isolation Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Semiconductor Lasers (AREA)
Abstract
The invention belongs to laser technology field, specially a kind of laser collimation temperature control sealed installing seat.The collimation lens adjusting means of mounting seat of the present invention devises three-dimensional regulation system：The collimation lens regulation of upper cover plate has tri- dimensions of X, Y, Z, and the regulation of X, Y dimension is realized by the adjusting screw of swivelling cover both sides, and the regulation of Z-direction dimension is realized by rotating the direction of rotation of collimation lens mounting seat；Mounting seat inner seat integrally uses gas-tight design.The present invention makes the XY dimensions of semiconductor laser colimated light system be separated with Z-dimension regulation, simplifies adjusting means, it is ensured that the air-tightness of inner seat, improves the overall performance of laser system.
Description
Technical Field
The invention belongs to the technical field of laser, and particularly relates to a collimating installation device of a laser.
Background
With the development of optoelectronic technology, semiconductor lasers are increasingly popularized as core light sources in products such as laser sensing and laser communication due to a series of advantages such as light weight, high efficiency, low energy consumption and long service life. Therefore, in recent years, there has been an increasing demand for a kit based on a semiconductor laser light source (hereinafter, simply referred to as a "laser" unless otherwise specified). The technical level of the existing laser matching device in China is relatively low, and particularly laser matching products which have high technical requirements on laser source collimation, air tightness and laser current temperature control driving connection are imported from foreign countries, so that the laser matching device is expensive and has long transportation time period. How to design and produce a laser collimation installation product which has high air tightness, flexible and convenient laser collimation adjustment and integrates current drive and temperature drive connecting devices is more and more concerned.
The prior art for collimating and mounting the laser is mostly limited to the following schemes:
1. the laser and the collimating lens are directly arranged on a bracket, so that the collimation of a laser beam is complicated and unreliable, and the stable work of the laser cannot be ensured due to the lack of necessary heat dissipation and driving joints;
2. the laser collimation device and necessary current drive and temperature drive circuit interface are integrated, but the internal design is non-airtight, and the laser is communicated with the external atmosphere, so that the laser cannot work at the temperature lower than the condensation point. In order to realize that the laser works at the temperature lower than the condensation point, some collimating devices provide dry nitrogen gas flow in the whole period to ensure that water vapor is not condensed on the laser, however, the collimating devices need to work together with a nitrogen gas bottle, and the use environment of the laser is limited to be completed only inside a laboratory.
The prior art on the market generally has the following defects:
the whole structure of the device is not designed to be airtight, and the device cannot work at the temperature lower than the condensation point, so that the working temperature range of the laser is reduced;
some devices provide dry nitrogen purging for the laser to ensure that the laser works under a condensation point, but the device is matched with a nitrogen bottle to limit the use environment of the laser;
the laser beam collimation adjusting mechanism is not flexible enough, the adjustable range is small, and the adjustment and installation are inconvenient, so that the quality of the output beam of the laser is unreliable.
The laser cannot be guaranteed to work in a normal temperature environment due to the lack of a necessary temperature control design.
The current drive and temperature drive connecting devices of the laser are separated, so that the safety of the laser in operation is reduced.
The whole framework of the laser has no external connecting device and can not be matched with a standard bracket on the market for use.
Disclosure of Invention
Aiming at the technical defects of the existing products in the market, the invention designs the collimation temperature control sealing mounting seat of the laser, so as to solve the defects that the existing products in the market cannot solve the defects of heat dissipation and temperature control of the laser, separation of current drive and temperature drive cable interfaces of the laser, non-airtightness, complexity and inflexibility in laser beam collimation adjustment, incapability of matching the integral framework of the laser with the existing standard support in the market and the like, so that the laser can stably work in an airtight environment, a semiconductor refrigeration piece, a thermistor and a fan are arranged for controlling the temperature and heat dissipation of the laser, a three-dimensional precise collimation adjusting mechanism is arranged on the light-emitting end face of the laser, the operation is convenient and reliable, and reliable structural technical guarantee is provided for the use of the laser.
The invention designs a laser collimation temperature control sealing installation seat, which comprises: the vibration isolation device comprises a frame body, a sealed DB9 electronic connector, a vibration isolation fan, a cover plate, an adjusting screw, a sealing ring, a magnetic steel ring, a Z adjusting ring, a fixed steel plate, a spring leaf, a mirror seat, a lens, a base, a thermistor, a radiating fin, a semiconductor refrigerating fin and a plurality of sealing rings; wherein,
the frame body is cuboid and is used for surrounding other components to form a closed internal environment, so that the functions of protection, support and installation are achieved; the number of the sealed DB9 electronic connectors is 2, the sealed DB9 electronic connectors are located on the side face of the frame body, are fixed on the frame body through a fixing plate and are respectively used for connecting standard connectors for laser current driving and temperature driving; wherein, the fixed plate is fixed on the frame body by screws, and a sealing ring is arranged in the middle;
the laser is arranged on the base and is powered by the elastic thimble, and the elastic thimble is fixed on the base by the thimble fixing device; the thimble fixing device is provided with two springs, and when fixing screws of the two springs are loosened, the thimble fixing device drives the elastic thimble to be separated from the laser device due to the elasticity of the springs; the heat radiating fins are arranged below the base, the semiconductor refrigerating fins are clamped between the base and the heat radiating fins, and the vibration isolation fan is arranged below the heat radiating fins; the base is also provided with a thermistor for monitoring the temperature of the laser;
the cover plate is connected with a sealing ring below the cover plate through a screw in the center of the cover plate, and adjusting screws, namely X, Y adjusting screws, are arranged on two sides of the cover plate and matched with the spring pieces at opposite angles for adjusting the X, Y dimension of the collimating lens; when the adjusting screw is pushed forward, the spring piece is extruded, the collimating lens base moves towards the pushing direction of the adjusting screw, and when the adjusting screw retracts, the restoring force of the extruded spring enables the collimating lens base to recover the original position; the spring leaf is positioned outside the sealing fixed ring, is tightly attached to the Z adjusting ring and provides restoring force for supporting X, Y to adjust;
the Z adjusting ring is connected with the fixed steel plate through magnetic adsorption of a magnetic steel ring, a lens base of the collimating lens is in threaded connection with the upper part of the Z adjusting ring, a sealing ring is arranged between the lower connecting parts, and the lens and the Z adjusting ring are in threaded rotation through rotating the lens base, so that the lens moves up and down along with the lens base, and the Z-direction adjustment of the collimating lens is realized; when adjusting the microscope base position and reaching output light collimation, will lap and sealing ring extrusion fixed together by hanging tight screw through the screw hole of covering the design and the screw hole on the sealing ring, finally make collimating lens rigidity to the seat is airtight in the realization, can not produce displacement or gas leakage because of external vibrations.
In the invention, sealing rings are arranged between the lens and the lens base, between the lens base and the sealing ring, between the cover plate and the frame body, between the cover plate and the sealing ring, between the radiating fin and the frame body, and between the sealing DB9 fixing plate and the frame body, so that the air tightness of the inner base is ensured.
In the invention, the screw holes for fixing the cover plate and the sealing ring on the sealing ring are blind holes.
In the present invention, the laser current and temperature drive cable connection is also standard sealed DB 9.
The invention designs a three-dimensional adjusting system. The collimation of upper cover plate is adjusted has X, Y, Z three dimensions, and the regulation of X, Y dimension is realized through the adjusting screw of rotatory lid both sides, has the magnetic steel ring in the design between fixed steel sheet and Z adjustable ring, and suitable magnetic force adsorbs both to have guaranteed that lens are in the plane of hugging closely the upper cover stable slip, is unlikely to again to produce too big frictional force and can't remove, has improved the regulation precision. The X, Y dimension-adjusted restoring force is provided by spring blades designed on opposite sides of the XY. The adjustment of the Z dimension is achieved by rotating the direction of rotation of the collimating lens mount. After laser beams are collimated, the cover and the sealing ring are fixed together through six screw holes (through holes) designed on the cover and six screw holes (blind holes) on the sealing ring. The alignment system enables the XY dimension and the Z dimension to be separated and adjusted, simplifies the adjusting device, ensures the air tightness of the inner seat, and improves the overall performance of the laser system.
The invention adopts the integral airtight design of the inner seat. The X, Y dimension adjustment of the upper cover for realizing air tightness is designed into a magnetic adsorption mechanism and a precise screw adjustment, and the inner seat is sealed by a sealing ring and a cover plate. Sealing rings are arranged between the lens and the mounting seat, between the mounting seat and the sealing ring, between the cover and the frame body, between the cover and the sealing ring, between the heat dissipation plate and the frame body, and between the sealing DB9 fixing plate and the frame body, so that the air tightness of the inner seat is ensured. And the screw hole on the sealing ring for fixing the cover and the sealing ring is a blind hole, and the laser current and temperature driving cable joint is also standard sealing DB 9. The series of designs realize the air tightness of the inner seat, facilitate the laser to work at the temperature lower than the condensation point, improve the stability and the reliability of a laser system, ensure that the laser can work in the outdoor environment and does not need to be matched with dry nitrogen (consumable material) for use;
the laser collimation temperature control sealing mounting base has the following beneficial effects:
1. the position of the lens can be finely adjusted in three dimensions of XY dimension and Z dimension according to the effective working distance from the lens to the emission point and the plane alignment position, so that divergent light emitted by the light source is fully coupled to enter the lens to realize parallel collimated light output, the use efficiency of laser is improved, and the stability and the precision of the photoelectric sensing system are improved;
2. the magnetic effect is utilized, the longitudinal control of the plane adjusting mechanism is simplified, and the overall structure volume is reduced;
3. the three-dimensional adjustment is operated and adjusted outside the structure, the reinstallation is not needed, the reduction of the adjustment precision caused by the disassembly and assembly of the structure is avoided, the adjustment precision is ensured, and the operation is convenient;
4. the integral inner seat is designed to be airtight, so that the laser can work at a temperature lower than a condensation point conveniently, the stability of a system is improved, and the application environment range of the laser is expanded;
5. the X, Y-direction adjustment of the collimating lens is realized by a magnetic adsorption mechanism on the top cover of the mounting seat, and the proper magnetic adsorption ensures that the lens stably slides in a plane tightly attached to the upper cover but cannot move due to excessive friction. The restoring force of XY direction adjustment is generated by a spring piece arranged on the diagonal dimension of the XY adjusting screw, and the structure is simple and reliable;
6. the Z-direction adjustment is accomplished by fine threads in the lens holder that are absorbed on the upper cover. Such a separate adjustment of X, Y from the Z degree of freedom makes the device more reliable and easy to achieve air-tightness;
7. since the invention integrates a standard D-SUB9 sealed cable connector for connecting the current drive with the temperature drive, the device is not damaged by the circuit plug.
Drawings
Fig. 1 is a cross-sectional elevation view of the structure of the present invention.
Fig. 2 is a perspective view of the present invention including a frame and an internal structure.
Fig. 3 is a top view of the overall structure of the present invention.
Fig. 4 is a schematic representation of the cover plate of the present invention.
Reference numbers in the figures: 1 is a frame body; 2 is a radiating fin; 3 is a refrigerating sheet; 4 is a base, 5 is a laser; 6. 10, 11, 12, 26 and 35 are fixing screws; 7 is a sealing DB9 fixing plate; 8 is sealed DB9 electronic connector; 9 vibration isolation fan; 13 a cover plate; 14 is a fixed steel plate; 15 is a Z adjusting ring; 16 is a lens base; 17 a lens; 18. 19, 26, 27, 28 and 29 are sealing rings which are used for ensuring the air tightness between corresponding connecting parts; 20 spring pieces; 21 is a sealing fixed ring; 22 is an adjusting nut; 23 is an adjusting screw; 24 is a gasket; 25 is a fastening screw; 30, spring top fixing; 31 is a spring; 32 is a spring top, 33 a magnetic steel ring; 34 a vibration isolation fan switch; 36 a thermistor; 37 a vent interface.
Detailed Description
The invention is further described below with reference to the figures and examples.
The components of the device of the invention are as follows:
the frame body 1 is rectangular and used for enclosing other components to form a closed internal environment and play roles in protecting, supporting and installing;
the sealing DB9 fixing plate 7 is positioned on the side surface of the frame body and is used for fixing the sealing DB9 electronic connector 8;
the sealed DB9 electronic connectors 8 are used for connecting standard connectors for laser current driving and temperature driving respectively;
the vibration isolation fan 9 is arranged on the bottom surface of the mounting seat and used for accelerating air flow in the mounting seat and accelerating heat dissipation; the vibration isolation fan is provided with a switch 34 which is positioned at the lower right part of the electronic connector of the seal DB9 and is used for controlling the working state of the vibration isolation fan;
the cover plate 13 is used for installing the lens and the three-dimensional precision adjusting mechanism and is provided with a sealing device among all parts;
adjusting screws 23, 2 located on both sides of the cover for adjusting the collimating lens in the X Y dimension;
a fixing steel plate 14 positioned under the cover plate and sealing an upper portion of the fixing ring 21;
a seal fixing ring 21 located outside the magnetic steel ring 33 and fixing the lower portion of the steel plate 14;
the magnetic steel ring 33 is positioned between the sealing fixed ring 21 and the Z-shaped adjusting ring 15 and is used for magnetic adsorption of a fixed steel plate;
the Z adjusting ring 15 is positioned between the magnetic steel ring 33 and the lens base 16 and is used for adjusting the Z direction of the collimating lens 17;
a spring plate 20, located outside the seal fixing ring 21, abutting against the Z adjusting ring 15, providing a restoring force for supporting X, Y for adjustment;
a lens base 16 located inside the Z adjusting ring 15 for mounting a collimating lens 17;
a lens 17, located inside the lens holder 16, for collimating the laser beam;
the base 4 is used for fixing the laser 5 and the semiconductor refrigerating sheet 3;
the bullet top is fixed 30, choose the insulating material to be used for fixing to the bullet top 32;
the ejection top 32 is positioned inside the ejection top fixing 30 and used for electrifying the laser;
a spring 31 positioned between the spring top fixing 30 and the base 4;
a thermistor 36 located inside the base 4 for conducting the operating temperature of the laser;
the cooling fin 2 is positioned below the refrigerating fin 3 and is beneficial to heat dissipation of the laser;
the refrigerating sheet 3 is positioned between the base 4 and the radiating sheet 2 and used for controlling the temperature of the laser;
a hanging screw 25 for pressing and fixing the cover plate and the sealing ring together through a screw hole designed on the cover and a screw hole on the sealing ring;
the sealing rings are used for mounting surfaces among all parts, so that the integral airtight design of the inner seat is realized;
the specific details are as follows:
1. the side of the frame has two sealed standard sealed DB9 joints mounted on the fixed plate for current drive and temperature drive of the laser, the fixed plate is fixed on the frame by screws, and the middle is provided with a sealing ring. The front surface of the frame body is provided with a ventilation interface for the passage of inlet and outlet gas. And a switch of the vibration isolation fan is designed at the lower right part of the joint of the sealing DB9 and is used for controlling the operation of the fan.
2. In the three-dimensional adjusting part of the invention, the center of the cover plate is provided with 6 screw holes which are fixedly connected with the sealing fixing ring below through six screws, and four corners are provided with fixing screw holes which are used for fixing the cover and the frame body. The adjusting screws on the two sides of the cover plate are X, Y adjusting screws, are matched with the spring plate with the angle dimension and are used for adjusting the XY dimension of the collimating lens. The Z adjusting ring is connected with the fixed steel plate through magnetic adsorption between the Z adjusting ring and the magnetic steel ring, the collimating lens base is in threaded connection with the upper part of the Z adjusting ring, a sealing ring is arranged between the lower connecting parts, and the lens in the lens base is enabled to move up and down through the rotation of threads between the lens and the Z adjusting ring through two rotating holes on the left-right rotating lens base, so that Z-direction adjustment is realized.
3. The laser device is installed on the base, and the laser device passes through the bullet top power supply, and bullet top is fixed on the base through bullet top fixing device. The spring top fixing device is provided with two springs, and when 2 fixing screws are loosened, the spring top fixing drives the thimble to be separated from the laser due to the elasticity of the springs. The heat radiating plate is arranged below the base, the semiconductor refrigerating sheet is clamped between the base and the heat radiating plate, and the vibration isolation fan is arranged below the heat radiating plate. The base is also provided with a thermistor for monitoring the temperature of the laser.
Claims (3)
1. The utility model provides a sealed mount pad of laser collimation temperature control which characterized in that includes: the vibration isolation device comprises a frame body, a sealed DB9 electronic connector, a vibration isolation fan, a cover plate, an adjusting screw, a sealing ring, a magnetic steel ring, a Z adjusting ring, a fixed steel plate, a spring leaf, a mirror seat, a lens, a base, a thermistor, a radiating fin, a semiconductor refrigerating fin and a plurality of sealing rings; wherein,
the frame body is cuboid and is used for surrounding other components to form a closed internal environment, so that the functions of protection, support and installation are achieved; the number of the sealed DB9 electronic connectors is 2, the sealed DB9 electronic connectors are located on the side face of the frame body, are fixed on the frame body through a fixed steel plate and are respectively used for connecting standard connectors for laser current driving and temperature driving;
the laser is arranged on the base and is powered through the elastic thimble; the radiating fins are arranged below the base, the semiconductor refrigerating fins are clamped between the base and the radiating fins, and the vibration isolation fan is arranged below the radiating fins; the base is also provided with a thermistor for monitoring the temperature of the laser;
the cover plate is connected with a sealing ring below the cover plate through a screw in the center of the cover plate, and adjusting screws, namely X, Y adjusting screws, are arranged on two sides of the cover plate and matched with the spring pieces at opposite angles for adjusting the X, Y dimension of the collimating lens; when the adjusting screw is pushed forward, the spring piece is extruded, the collimating lens base moves towards the pushing direction of the adjusting screw, and when the adjusting screw retracts, the restoring force of the extruded spring piece enables the collimating lens base to restore to the original position;
the Z adjusting ring is connected with the fixed steel plate through magnetic adsorption of the magnetic steel ring, the lens base of the collimating lens is in threaded connection with the upper part of the Z adjusting ring, a sealing ring is arranged between the lower connecting parts, and the lens and the Z adjusting ring are in threaded rotation through rotating the lens base, so that the lens moves up and down along with the lens base, and the Z-direction adjustment of the collimating lens is realized; when the position of the lens base is adjusted to achieve output light collimation, the cover plate and the sealing ring are extruded and fixed together through the screw hole designed on the cover and the screw hole on the sealing ring by the hanging screw, and finally the position of the collimating lens is fixed, and the air tightness of the inner base is realized.
2. The laser collimation temperature control seal installation seat as claimed in claim 1, wherein seal rings are arranged between the lens and the lens seat, between the lens seat and the seal ring, between the cover plate and the frame body, between the cover plate and the seal ring, between the heat sink and the frame body, and between the seal DB9 fixing plate and the frame body, so as to ensure the air tightness of the inner seat.
3. The laser collimation temperature control seal installation base of claim 1, wherein the screw holes used for fixing the cover plate and the seal ring on the seal ring are blind holes.
Priority Applications (1)
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| CN201510159702.9A CN104752950B (en) | 2015-04-07 | 2015-04-07 | A kind of collimation temperature control sealed installing seat of laser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510159702.9A CN104752950B (en) | 2015-04-07 | 2015-04-07 | A kind of collimation temperature control sealed installing seat of laser |
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| CN104752950B true CN104752950B (en) | 2017-07-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375241A (en) * | 2015-12-21 | 2016-03-02 | 潘晨骋 | Compact multifunctional laser mounting seat |
| CN109901350A (en) * | 2017-12-08 | 2019-06-18 | 深圳光峰科技股份有限公司 | Laser aid and projection device |
| CN111146671B (en) * | 2019-12-11 | 2023-04-14 | 光原科技(深圳)有限公司 | Miniature eye-safe laser with laser material module |
| CN113894437A (en) * | 2021-09-28 | 2022-01-07 | 无锡亮源激光技术有限公司 | Wafer splitting device |
| CN114967001A (en) * | 2022-05-20 | 2022-08-30 | 武汉镭健科技有限责任公司 | Rectangular light spot coupler |
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| US4993801A (en) * | 1989-12-27 | 1991-02-19 | Eastman Kodak Company | Optical head |
| CN101071932A (en) * | 2007-05-22 | 2007-11-14 | 南昌航空大学 | Semiconductor laser precision tune-up and tempeature control device |
| CN101557076A (en) * | 2009-05-22 | 2009-10-14 | 中国科学院国家授时中心 | Shakeproof external cavity semiconductor laser |
| CN203536723U (en) * | 2013-08-23 | 2014-04-09 | 福州高意通讯有限公司 | Packaging structure of semiconductor laser unit with adjustable wavelength |
| CN204464752U (en) * | 2015-04-07 | 2015-07-08 | 王胤 | A kind of collimation temperature control sealed installing seat of laser |
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2015
- 2015-04-07 CN CN201510159702.9A patent/CN104752950B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993801A (en) * | 1989-12-27 | 1991-02-19 | Eastman Kodak Company | Optical head |
| CN101071932A (en) * | 2007-05-22 | 2007-11-14 | 南昌航空大学 | Semiconductor laser precision tune-up and tempeature control device |
| CN101557076A (en) * | 2009-05-22 | 2009-10-14 | 中国科学院国家授时中心 | Shakeproof external cavity semiconductor laser |
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Effective date of registration: 20191203 Address after: 315105 501, 108 building 14, 818 Qiming Road, Yinzhou District, Ningbo, Zhejiang. Patentee after: NINGBO HAIERXIN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 200433, room 1, building 200, No. 1110 East National Road, Shanghai, Yangpu District Patentee before: Wang Yin |
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