CN215600730U - Dust-proof device of laser transmitter - Google Patents
Dust-proof device of laser transmitter Download PDFInfo
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- CN215600730U CN215600730U CN202122078478.4U CN202122078478U CN215600730U CN 215600730 U CN215600730 U CN 215600730U CN 202122078478 U CN202122078478 U CN 202122078478U CN 215600730 U CN215600730 U CN 215600730U
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Abstract
The utility model provides a dust-proof device of a laser transmitter, which comprises a laser transmitting chip, a dust-proof fixing piece and a dust-proof window. The laser emitting chip is used for emitting laser; the dustproof fixing piece is fixedly arranged in the laser transmitter, a conical through hole is formed in the dustproof fixing piece, the wide opening end of the conical through hole is close to the laser transmitting chip, and the narrow opening end of the conical through hole is far away from the laser transmitting chip; the dustproof window is fixedly arranged on the dustproof fixing piece and is positioned between the wide opening end of the conical through hole and the laser emission chip. Compared with the prior art, the technical scheme has the beneficial effects that: be provided with dustproof mounting and dustproof window at the front end of laser emission chip, utilize the comparatively concentrated characteristics of the light beam of laser, be provided with the tapered through-hole of wide structure behind the preceding narrow in dustproof mounting, can prevent effectively that external particulate matter from getting into inside the laser emitter.
Description
Technical Field
The utility model relates to the technical field of laser, in particular to a dust-proof device of a laser transmitter.
Background
After the laser emitter has three basic laser emitting conditions of laser working substances, an optical resonant cavity, a pumping source and the like, laser with extremely high brightness, pure quality and stable spectrum can be generated in a stimulated radiation mode, so that the laser emitter can be widely applied to many aspects of production and life. The process of emitting laser by the laser emitter comprises the following steps: under proper excitation conditions, the population inversion is realized at high and low energy levels on a particle system in the laser working substance, and when atoms transit from the high energy levels to the low energy levels, photons with corresponding energy are released, so that laser is formed in the optical resonant cavity and is emitted.
Laser has the characteristics of high energy and concentrated light beam, and when particles exist on a laser emergent light path, the particles can quickly absorb laser energy, and the temperature of the particles can be quickly raised, so that part of the laser fails or even all the laser is burnt. In fact, a considerable part of the failures of the laser emitter during the application process are caused by the particles entering the laser emitter and causing the light path to be blocked.
In the prior art, in order to prevent external particles from entering the optical path, the general method includes the following two methods: firstly, external packaging of the laser transmitter is optimized, and particles are isolated through more scientific and reasonable external packaging; secondly, the working environment is purified, and the floating particles in the air are reduced. However, both of these proposals have a problem of too high implementation cost although they can achieve a certain effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that in order to overcome the defects in the prior art, the utility model provides the laser transmitter dustproof device which can prevent external particles from entering the laser transmitter through a scientific and reasonable structure and relatively low cost.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
a laser transmitter dust guard comprising:
the laser emitting chip is used for emitting laser;
the dustproof fixing piece is fixedly arranged in the laser transmitter, a conical through hole is formed in the dustproof fixing piece, the wide opening end of the conical through hole is close to the laser transmitting chip, and the narrow opening end of the conical through hole is far away from the laser transmitting chip;
the dustproof window is fixedly arranged on the dustproof fixing piece and is positioned between the wide-mouth end of the conical through hole and the laser emission chip.
Compared with the prior art, the technical scheme has the beneficial effects that: be provided with dustproof mounting and dustproof window at the front end of laser emission chip, utilize the comparatively concentrated characteristics of the light beam of laser, be provided with the tapered through-hole of wide structure behind the preceding narrow in dustproof mounting, can prevent effectively that external particulate matter from getting into inside the laser emitter.
Furthermore, the laser emission chip is arranged on a heat conduction base seat, and a slow axis condensing lens and a fast axis condensing lens are also arranged on the heat conduction base seat;
and laser emitted by the laser emitting chip sequentially passes through the fast-axis condensing lens and the slow-axis condensing lens and then is emitted to the conical through hole.
The beneficial effect who adopts above-mentioned scheme is: on one hand, the heat accumulated in the working process of the laser emitting chip can be led out through the heat conducting base seat, so that the normal work of the laser emitting chip is ensured; on the other hand, the slow-axis condensing lens and the fast-axis condensing lens are arranged, so that the laser beams can be ensured to be parallel.
Further, the heat-conducting base seat comprises a first supporting base and a second supporting base, the height of the first supporting base is greater than that of the second supporting base, and the first supporting base and the second supporting base are of an integrally-molded structure;
the laser emission chip is arranged on the first support base, the fast-axis condenser lens is fixed at the front end of the laser emission chip, and the slow-axis condenser lens is arranged on the second support base.
The beneficial effect who adopts above-mentioned scheme is: the heat conducting base seat is formed by the first supporting base and the second supporting base which are different in height, and components such as the slow-axis condensing lens and the fast-axis condensing lens can be arranged more conveniently.
Further, the laser emission chip is fixedly arranged on the first support base through heat conduction silica gel.
The beneficial effect who adopts above-mentioned scheme is: be provided with heat conduction silica gel and can promote the radiating effect, can guarantee that laser emitter normally works.
Further, a collimating mirror assembly is further arranged on the heat conducting base seat;
the collimating mirror assembly is fixedly arranged on the second supporting base, and the slow-axis condenser lens is positioned between the fast-axis condenser lens and the collimating mirror assembly;
the laser emitted by the laser emitting chip sequentially passes through the fast-axis condenser lens, the slow-axis condenser lens and the collimator lens assembly and then is emitted to the conical through hole.
The beneficial effect who adopts above-mentioned scheme is: the collimating mirror assembly can ensure that the laser is incident to a designated position.
Further, the collimator lens assembly comprises a collecting collimator lens and a collimator lens fixing piece;
a collimating mirror mounting through hole is axially formed in the collimating mirror fixing piece, an annular supporting platform is formed in the collimating mirror mounting through hole, and a plurality of collimating mirror dispensing through holes are formed in the side of the annular supporting platform;
the cross section of the collecting collimating mirror is of a circular lens structure, and one side of the collecting collimating mirror is fixedly arranged on the annular supporting platform through an adhesive.
The beneficial effect who adopts above-mentioned scheme is: the focusing collimating lens can be arranged in the collimating lens fixing piece more scientifically and reasonably through the collimating lens mounting through hole and the annular supporting platform, the integrity of the collimating lens component is guaranteed, and the glue injection operation is convenient for the glue dispensing through hole of the collimating lens.
Furthermore, dustproof mounting through-hole is formed at one end of the dustproof mounting through sinking, the dustproof mounting through-hole is communicated with and coaxial with the conical through-hole, and the dustproof window is fixedly arranged on the dustproof mounting through-hole.
The beneficial effect who adopts above-mentioned scheme is: through being provided with dustproof installation through-hole, can set up dustproof window in dustproof mounting more scientifically rationally, guarantee the wholeness between dustproof window and the dustproof mounting.
Furthermore, the side of the dustproof installation through hole is also provided with a plurality of dustproof dispensing through holes.
The beneficial effect who adopts above-mentioned scheme is: the glue injection operation is conveniently carried out through the dustproof glue dispensing through holes.
Furthermore, the dustproof window is of a rectangular structure, and the size of the dustproof mounting through hole is matched with that of the dustproof window;
the dustproof dispensing through holes are four in number and are respectively arranged at four corners of the dustproof mounting through hole, and the dustproof window is fixedly arranged in the dustproof mounting through hole through an adhesive.
The beneficial effect who adopts above-mentioned scheme is: the dustproof window with the rectangular structure is fixed from four corners, and the fixing effect can be guaranteed.
Furthermore, the diameter of the wide opening end of the conical through hole is 2.0-3.0mm, and the diameter of the narrow opening end of the conical through hole is 0.5-1.5 mm. Specifically, the diameter of the wide opening end of the conical through hole is 2.5mm, and the diameter of the narrow opening end of the conical through hole is 1.0 mm.
The beneficial effect who adopts above-mentioned scheme is: through above-mentioned size setting, dustproof effect can be guaranteed on the one hand, and on the other hand can not cause the hindrance to laser emission again.
Drawings
Fig. 1 is an overall schematic view of a laser transmitter dust-proof device of the present invention.
Fig. 2 is an exploded view of a laser transmitter dust guard of the present invention.
Fig. 3 is a schematic diagram of a dust-proof fixing member in the dust-proof device of the laser transmitter according to the present invention.
Fig. 4 is another schematic view of a dust-proof fixing member in the dust-proof device of the laser transmitter according to the present invention.
Fig. 5 is a schematic diagram of a tapered through hole in a dust-proof device for a laser transmitter according to the present invention.
In the figures, the list of components represented by the various reference numbers is as follows:
the device comprises a laser emission chip 1, a dustproof fixing piece 2, a dustproof window 3, a heat conduction base seat 4, a slow-axis condensing lens 5, a fast-axis condensing lens 6 and a collimating lens assembly 7;
a tapered through hole 201, a dustproof mounting through hole 202 and a dustproof dispensing through hole 203;
a first support base 401, a second support base 402;
a focusing collimator 701 and a collimator holder 702.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Laser has the characteristics of high energy and concentrated light beam, and when particles exist on a laser emergent light path, the particles can quickly absorb laser energy, and the temperature of the particles can be quickly raised, so that part of the laser fails or even all the laser is burnt. In fact, a considerable part of the failures of the laser emitter during the application process are caused by the particles entering the laser emitter and causing the light path to be blocked.
In order to prevent foreign particles from entering the optical path, the general practice of the prior art includes the following two: firstly, external packaging of the laser transmitter is optimized, and particles are isolated through more scientific and reasonable external packaging; secondly, the working environment is purified, and the floating particles in the air are reduced. However, both of these proposals have a problem of too high implementation cost although they can achieve a certain effect.
As shown in fig. 1 and 2, in order to prevent external particles from entering the interior of the laser emitter and ensure the normal operation of the laser emitter, the utility model provides a dust-proof device for the laser emitter, which comprises a laser emitting chip 1, a dust-proof fixing member 2 and a dust-proof window 3 arranged on the dust-proof fixing member 2. The laser emitting chip 1 is used for emitting laser; dustproof mounting 2 is fixed to be set up in laser emitter, dustproof window 3 is used for isolated outside air, dustproof window 3 fixed set up in dustproof mounting 2 is last.
The greatest innovation point of the utility model from the prior art is as follows: as can be seen from fig. 1, fig. 2 and fig. 5, a tapered through hole 201 is disposed on the dustproof fixing member 2, a wide opening end of the tapered through hole 201 is close to the laser emitting chip 1, and a narrow opening end of the tapered through hole 201 is far away from the laser emitting chip 1; the dustproof window 3 is positioned between the wide opening end of the conical through hole 201 and the laser emission chip 1.
When the laser emitter works, laser is emitted along the axial direction of the conical through hole 201, and in the laser emitter which is calibrated in advance, light beams sequentially pass through the circle center of the wide opening end and the circle center of the narrow opening end of the conical through hole 201. Be provided with dustproof mounting 2 and dustproof window 3 at the front end of laser emission chip 1, the light beam that utilizes laser is comparatively concentrated's characteristics, be provided with the tapered through-hole 201 of wide structure behind the preceding narrow in dustproof mounting 2, can not influence the propagation of laser on the one hand, on the other hand, compare general through-hole, the narrow mouth end of tapered through-hole 201 is less relatively, can effectively reduce external particulate matter and enter into the inside probability of laser emitter through this through-hole, thereby it is inside effectively to prevent external particulate matter from getting into laser emitter.
As shown in fig. 1 and fig. 2, the laser emitting chip 1 is disposed on a heat conducting base 4, and the heat conducting base 4 is further provided with a slow-axis condensing lens 5 and a fast-axis condensing lens 6; the laser emitted by the laser emitting chip 1 sequentially passes through the fast axis condenser lens 6 and the slow axis condenser lens 5 and then is emitted to the tapered through hole 201.
On the one hand, the laser emitting chip 1 can emit a large amount of heat in the working process, if the chip is overheated, the chip can be burnt, and the heat accumulated in the working process of the laser emitting chip 1 can be led out through the heat conducting base seat 4, so that the normal work of the laser emitting chip 1 is ensured.
On the other hand, after the laser is refracted by the slow-axis condenser lens 5, the laser becomes parallel light in the slow-axis direction; after the laser is refracted by the fast axis condensing lens 6, the laser can become parallel light in the fast axis direction, and therefore, the slow axis condensing lens 5 and the fast axis condensing lens 6 are arranged, and the laser beam can be guaranteed to be parallel.
As shown in fig. 1 and 2, the heat-conductive base holder 4 includes a first support base 401 and a second support base 402, the height of the first support base 401 is greater than the height of the second support base 402, and the first support base 401 and the second support base 402 are an integrally molded structure; the laser emitting chip 1 is arranged on the first supporting base 401, the fast axis condenser lens 6 is fixed at the front end of the laser emitting chip 1, and the slow axis condenser lens 5 is arranged on the second supporting base 402.
The laser emission chip 1 is of a flat structure, the slow-axis condenser lens 5 is of a structure with a certain height, the first support base 401 and the second support base 402 which are different in height form the heat conduction base seat 4, the laser emission chip 1, the slow-axis condenser lens 5 and the fast-axis condenser lens 6 are arranged on the first support base 401 and/or the second support base 402 according to actual conditions, and therefore it can be guaranteed that laser emitted by the laser emission chip 1 can be emitted to the center of the slow-axis condenser lens 5, and components such as the slow-axis condenser lens 5 and the fast-axis condenser lens 6 can be arranged more conveniently.
Preferably, the laser emitting chip 1 is fixedly disposed on the first supporting base 401 through a heat conducting silica gel. Be provided with heat conduction silica gel and can promote the radiating effect, can guarantee that laser emitter normally works.
As shown in fig. 1 and 2, the heat-conducting base seat 4 is further provided with a collimator lens assembly 7; the collimating mirror assembly 7 is fixedly arranged on the second support base 402, and the slow-axis condenser lens 5 is positioned between the fast-axis condenser lens 6 and the collimating mirror assembly 7; the laser emitted by the laser emitting chip 1 sequentially passes through the fast axis condenser lens 6, the slow axis condenser lens 5 and the collimator lens assembly 7 and then is emitted to the tapered through hole 201.
The arrangement of the collimating mirror assembly 7 ensures that the laser light is incident at a given location. For example, the front end of the laser transmitter is provided with an optical fiber for leading out the laser. After passing through the calibrated collimating mirror assembly 7, the laser can be accurately incident into the optical fiber, thereby ensuring the conduction efficiency.
As shown in fig. 2, the collimator lens assembly 7 includes a collecting collimator lens 701 and a collimator lens holder 702; a collimating mirror mounting through hole is axially formed in the collimating mirror fixing piece 702, an annular supporting platform is formed in the collimating mirror mounting through hole, and a plurality of collimating mirror dispensing through holes are formed in the side of the annular supporting platform; the focusing collimator 701 is a lens structure with a circular cross section, and one side of the focusing collimator 701 is fixedly arranged on the annular supporting platform through an adhesive.
The focusing collimator 701 can be arranged in the collimator fixing piece 702 more scientifically and reasonably through the collimator mounting through hole and the annular supporting platform, integrity of the collimator assembly 7 is guaranteed, and glue injection operation is convenient for the collimator dispensing through hole.
As shown in fig. 3 and 4, preferably, a dust-proof mounting through hole 202 is formed at one end of the dust-proof fixing member 2 by means of a recess, the dust-proof mounting through hole 202 is communicated and coaxial with the tapered through hole 201, and the dust-proof window 3 is fixedly disposed on the dust-proof fixing member 2 by means of the dust-proof mounting through hole 202. Through being provided with dustproof installation through-hole 202, can set up dustproof window 3 in dustproof mounting 2 more scientifically and reasonably, guarantee the wholeness between dustproof window 3 and the dustproof mounting 2. The side of dustproof installation through-hole 202 still is provided with a plurality of dustproof some glue through-holes 203. The through hole 203 is glued through dustproof point to the convenient glue operation of going on.
Preferably, the dustproof window 3 is a rectangular structure, and the size of the dustproof mounting through hole 202 is matched with that of the dustproof window 3; the dustproof dispensing through holes 203 are four, the dustproof dispensing through holes 203 are respectively arranged at four corners of the dustproof mounting through hole 202, and the dustproof window 3 is fixedly arranged in the dustproof mounting through hole 202 through an adhesive. The dust-proof window 3 of the rectangular structure is fixed from four corners, and the fixing effect can be ensured.
Specifically, the diameter of the wide opening end of the conical through hole is 2.0-3.0mm, and the diameter of the narrow opening end of the conical through hole is 0.5-1.5 mm. Specifically, the diameter of the wide opening end of the conical through hole is 2.5mm, and the diameter of the narrow opening end of the conical through hole is 1.0 mm. Through above-mentioned size setting, dustproof effect can be guaranteed on the one hand, and on the other hand can not cause the hindrance to laser emission again. In general, a balance can be struck between dust prevention and laser light emission.
It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.
Claims (10)
1. A laser transmitter dust keeper, comprising:
the laser emitting chip is used for emitting laser;
the dustproof fixing piece is fixedly arranged in the laser transmitter, a conical through hole is formed in the dustproof fixing piece, the wide opening end of the conical through hole is close to the laser transmitting chip, and the narrow opening end of the conical through hole is far away from the laser transmitting chip;
the dustproof window is fixedly arranged on the dustproof fixing piece and is positioned between the wide-mouth end of the conical through hole and the laser emission chip.
2. The laser emitter dust keeper of claim 1, wherein said laser emitting chip is disposed on a heat conducting base, said heat conducting base further having a slow axis condensing lens and a fast axis condensing lens;
and laser emitted by the laser emitting chip sequentially passes through the fast-axis condensing lens and the slow-axis condensing lens and then is emitted to the conical through hole.
3. The laser emitter dust prevention device according to claim 2, wherein the heat conducting base seat comprises a first support base and a second support base, the height of the first support base is greater than that of the second support base, and the first support base and the second support base are of an integrally formed structure;
the laser emission chip is arranged on the first support base, the fast-axis condenser lens is fixed at the front end of the laser emission chip, and the slow-axis condenser lens is arranged on the second support base.
4. The laser emitter dust-proof device according to claim 3, wherein the laser emitting chip is fixedly arranged on the first supporting base through heat-conducting silica gel.
5. The laser emitter dust guard of claim 3 wherein said thermally conductive base further has a collimating mirror assembly disposed thereon;
the collimating mirror assembly is fixedly arranged on the second supporting base, and the slow-axis condenser lens is positioned between the fast-axis condenser lens and the collimating mirror assembly;
the laser emitted by the laser emitting chip sequentially passes through the fast-axis condenser lens, the slow-axis condenser lens and the collimator lens assembly and then is emitted to the conical through hole.
6. The laser emitter dust keeper of claim 5, wherein the collimator lens assembly comprises a converging collimator lens and a collimator lens mount;
a collimating mirror mounting through hole is axially formed in the collimating mirror fixing piece, an annular supporting platform is formed in the collimating mirror mounting through hole, and a plurality of collimating mirror dispensing through holes are formed in the side of the annular supporting platform;
the cross section of the collecting collimating mirror is of a circular lens structure, and one side of the collecting collimating mirror is fixedly arranged on the annular supporting platform through an adhesive.
7. The laser emitter dust-proof device of claim 1, wherein a dust-proof mounting through hole is formed at one end of the dust-proof fixing member through a recess, the dust-proof mounting through hole is communicated and coaxial with the cone-shaped through hole, and the dust-proof window is fixedly arranged on the dust-proof fixing member through the dust-proof mounting through hole.
8. The laser emitter dust keeper of claim 7, wherein said dust keeper mounting holes are further formed with dust dispensing through holes on the sides thereof.
9. The laser emitter dust keeper of claim 8, wherein said dust window is rectangular in configuration, said dust mounting through hole being sized to fit said dust window;
the dustproof dispensing through holes are four in number and are respectively arranged at four corners of the dustproof mounting through hole, and the dustproof window is fixedly arranged in the dustproof mounting through hole through an adhesive.
10. The laser emitter dust prevention device according to any one of claims 1 to 9, wherein the diameter of the wide end of the tapered through hole is 2.0 to 3.0mm, and the diameter of the narrow end of the tapered through hole is 0.5 to 1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078478.4U CN215600730U (en) | 2021-08-31 | 2021-08-31 | Dust-proof device of laser transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078478.4U CN215600730U (en) | 2021-08-31 | 2021-08-31 | Dust-proof device of laser transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215600730U true CN215600730U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122078478.4U Active CN215600730U (en) | 2021-08-31 | 2021-08-31 | Dust-proof device of laser transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215600730U (en) |
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2021
- 2021-08-31 CN CN202122078478.4U patent/CN215600730U/en active Active
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