CN220294000U - Optical path mechanism of multi-wavelength laser therapeutic instrument - Google Patents
Optical path mechanism of multi-wavelength laser therapeutic instrument Download PDFInfo
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- 230000007246 mechanism Effects 0.000 title claims abstract description 67
- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 34
- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims abstract description 55
- 239000013307 optical fiber Substances 0.000 claims abstract description 39
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 97
- 230000009977 dual effect Effects 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 3
- 238000011282 treatment Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 238000013532 laser treatment Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
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Abstract
The application discloses optical path mechanism of multi-wavelength laser therapeutic instrument compares with prior art, includes: semiconductor lasers of different wavelengths, the semiconductor lasers being used to emit laser light of corresponding wavelengths; the first optical fiber is arranged at the rear end of the semiconductor laser and used for outputting the laser; a combiner mechanism coupled to the first optical fiber; the wave combiner mechanism is used for coupling laser with different wavelengths to synthesize one path of output; the self-focusing lens is arranged at the output end of the wave synthesizer and used for collimating and homogenizing the output light spots of the wave synthesizer; and a concave lens mechanism arranged at the rear end of the self-focusing lens; the concave lens mechanism is used for amplifying and outputting the homogenized light spots. Compared with the prior art, the technical scheme can meet the treatment requirement of multiple wavelengths, obtain the light spot output with uniform and coincident height and large area, and improve the treatment effect.
Description
Technical Field
The present application relates to the technical field of laser therapeutic apparatuses, and more particularly, to an optical path mechanism of a multi-wavelength laser therapeutic apparatus.
Background
The laser therapeutic apparatus is a therapeutic apparatus which is applied in the medical field by applying a laser technique. The semiconductor laser therapeutic apparatus for treatment is always output at a single wavelength for a long time in 30 years, and has a limited therapeutic effect. With the development of medicine, more and more applications require treatment of a tissue with multiple wavelengths to achieve optimal therapeutic effects. However, if one therapeutic apparatus outputs only one wavelength, this means that a plurality of therapeutic apparatuses with different wavelengths need to be replaced in the therapeutic process, which not only complicates the operation, but also increases the waiting time and risk of the treatment, so that the multi-wavelength semiconductor laser therapeutic apparatus is a development trend.
Currently, dual-wavelength laser therapeutic apparatuses appear on the market, and optical path mechanisms of such dual-wavelength laser therapeutic apparatuses generally adopt a spatial coupling mode, that is, two wavelengths are coupled together by means of a reflecting mirror fixed on a chassis. However, the coupling mode of the optical path mechanism has a plurality of defects: firstly, the coupling mode has low efficiency and poor stability, and light spots with two wavelengths have poor overlapping property, so that the treatment effect is influenced; secondly, this approach makes it difficult to increase the number of coupling paths, and cannot address the need for more lasers.
Therefore, how to provide an optical path mechanism of a multi-wavelength laser therapeutic apparatus, which can meet the requirement of multi-wavelength treatment, obtain highly uniform superposition and large-area light spot output, and improve the therapeutic effect has become a technical problem to be solved by those skilled in the art.
Disclosure of Invention
For solving the technical problem, the application provides an optical path mechanism of a multi-wavelength laser therapeutic apparatus, which can meet the treatment requirement of multiple wavelengths, obtain the light spot output with uniform height and coincidence and large area, and improve the treatment effect.
The technical scheme provided by the application is as follows:
the application provides an optical path mechanism of multi-wavelength laser therapeutic instrument, including: semiconductor lasers of different wavelengths, the semiconductor lasers being used to emit laser light of corresponding wavelengths; the first optical fiber is arranged at the rear end of the semiconductor laser and used for outputting the laser; a combiner mechanism coupled to the first optical fiber; the wave combiner mechanism is used for coupling laser with different wavelengths to synthesize one path of output; the self-focusing lens is arranged at the output end of the wave synthesizer and used for collimating and homogenizing the output light spots of the wave synthesizer; and a concave lens mechanism arranged at the rear end of the self-focusing lens; the concave lens mechanism is used for amplifying and outputting the homogenized light spots.
Further, in a preferred mode of the present utility model, the combiner includes: the wave combiner includes: the single-fiber collimator is connected with a first optical fiber for outputting laser with different wavelengths through different input ports; the single-fiber collimator only allows the wavelength laser emitted by the semiconductor laser connected with the first optical fiber to pass through; the filter mirror is arranged at the rear end of the single-fiber collimator; the filter only allows the laser light with the wavelength emitted by the semiconductor laser connected with the first optical fiber to pass through, and reflects the laser light with the rest wavelengths.
Further, in a preferred mode of the present utility model, the combiner further includes: and the double-fiber collimator is arranged at the rear end of the filter and allows the laser with various wavelengths to pass through.
Further, in a preferred embodiment of the present utility model, the multiplexer mechanism includes: a dual wave combiner, a triple wave combiner, or a multiple wave combiner.
Further, in a preferred mode of the present utility model, the three-wave combiner includes: the 4 single-fiber collimators are respectively a first single-fiber collimator, a second single-fiber collimator, a third single-fiber collimator and a fourth single-fiber collimator; the two double-fiber collimators are respectively a first double-fiber collimator and a second double-fiber collimator; and 2 filter mirrors, namely a first filter mirror and a second filter mirror.
Further, in a preferred mode of the present utility model, in the three-wave combiner, the first single-fiber collimator, the second single-fiber collimator and the third single-fiber collimator are sequentially arranged in parallel in a row, and are connected with different semiconductor lasers; the fourth single-fiber collimator is arranged at the rear end of the third single-fiber collimator; the first filter lens is arranged at the rear end of the first single-fiber collimator in parallel, and the second filter lens is arranged at the rear end of the second single-fiber collimator in parallel; the first double-fiber collimator is arranged at the rear end of the first filter lens in parallel, and the second double-fiber collimator is arranged at the rear end of the second filter lens in parallel; the fourth single-fiber collimator is connected with the second double-fiber collimator, and the second double-fiber collimator is connected with the first double-fiber collimator and used for transmitting laser with different wavelengths.
Further, in a preferred mode of the present utility model, the concave lens mechanism is specifically a single concave lens structure or a double concave lens structure.
Further, in a preferred form of the utility model, the self-focusing lens is specifically a lens with an intercept of 0.23.
Further, in a preferred mode of the present utility model, the first optical fiber is specifically a quartz optical fiber of the same structure and material.
Further, in a preferred mode of the present utility model, the semiconductor laser includes a dual wavelength laser, a three wavelength laser, a four wavelength laser, or a plurality of lasers of different wavelengths, each of the lasers emitting wavelength laser light.
Compared with the prior art, the optical path mechanism of the multi-wavelength laser therapeutic apparatus provided by the utility model comprises: semiconductor lasers of different wavelengths, the semiconductor lasers being used to emit laser light of corresponding wavelengths; the first optical fiber is arranged at the rear end of the semiconductor laser and used for outputting the laser; a combiner mechanism coupled to the first optical fiber; the wave combiner mechanism is used for coupling laser with different wavelengths to synthesize one path of output; the self-focusing lens is arranged at the output end of the wave synthesizer and used for collimating and homogenizing the output light spots of the wave synthesizer; and a concave lens mechanism arranged at the rear end of the self-focusing lens; the concave lens mechanism is used for amplifying and outputting the homogenized light spots. The semiconductor lasers can be arranged in a plurality, and each semiconductor laser emits laser with different wavelengths to realize multi-wavelength output; each semiconductor output end is connected with the first optical fiber, the first optical fiber is utilized to realize laser output, laser is coupled through the combiner mechanism, and the laser is combined into one output path, so that the optical path loss is reduced; and secondly, arranging the self-focusing lens and the concave lens mechanism at the rear end of the combiner mechanism, and respectively performing spot homogenization and amplification treatment to improve the laser treatment effect. Compared with the prior art, the technical scheme can meet the treatment requirement of multiple wavelengths, obtain the light spot output with uniform and coincident height and large area, and improve the treatment effect.
The beneficial effects are that:
1. the optical path mechanism disclosed by the application can realize multi-wavelength coupling, the semiconductor laser can realize multi-wavelength output, and compared with single-wavelength and dual-wavelength output, the effect of laser treatment is improved;
2. the optical fiber combiner is used, the optical path coupling is accurate, the loss is low, the optical path is stable and reliable, the number of combined waves is easy to increase and decrease, and the adjustment is convenient;
3. collimating the output light of the optical fiber by using a self-focusing lens to obtain uniform light spots; and the concave lens is used for amplifying the collimated light spots to obtain large-area light spots, so that the treatment area is increased.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an optical path mechanism of a multi-wavelength laser therapeutic apparatus according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a three-wave combiner according to an embodiment of the present utility model.
Reference numerals illustrate:
a semiconductor laser 1; a first optical fiber 2; a combiner mechanism 3; a self-focusing lens 4; a concave lens mechanism 5; a single fiber collimator 6; a filter mirror 7; a double fiber collimator 8; a three-wave combiner 9; a first single fiber collimator 10; a second single fiber collimator 11; a third single fiber collimator 12; a fourth single fiber collimator 13; a first filter mirror 14; a second filter mirror 15; a first dual fiber collimator 16; a second dual fiber collimator 17.
Detailed Description
In order to better understand the technical solutions in the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" is two or more, unless explicitly defined otherwise.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the scope of the present disclosure, since any structural modifications, proportional changes, or dimensional adjustments made by those skilled in the art should not be made in the present disclosure without affecting the efficacy or achievement of the present disclosure.
As shown in fig. 1 to 2, an optical path mechanism of a multi-wavelength laser therapeutic apparatus provided in an embodiment of the present application includes: a semiconductor laser 1 of different wavelength, the semiconductor laser 1 being configured to emit laser light of a corresponding wavelength; the first optical fiber 2 is arranged at the rear end of the semiconductor laser 1 and is used for outputting the laser; a combiner mechanism 3 connected to the first optical fiber 2; the combiner mechanism 3 is used for coupling laser with different wavelengths to synthesize one path of output; the self-focusing lens 4 is arranged at the output end of the wave synthesizer and used for collimating and homogenizing the output light spots of the wave synthesizer; and a concave lens mechanism 5 provided at the rear end of the self-focusing lens; the concave lens mechanism 5 is used for amplifying and outputting the homogenized light spot.
The utility model provides an optical path mechanism of a multi-wavelength laser therapeutic apparatus, which specifically comprises: a semiconductor laser 1 of different wavelength, the semiconductor laser 1 being configured to emit laser light of a corresponding wavelength; the first optical fiber 2 is arranged at the rear end of the semiconductor laser 1 and is used for outputting the laser; a combiner mechanism 3 connected to the first optical fiber 2; the combiner mechanism 3 is used for coupling laser with different wavelengths to synthesize one path of output; the self-focusing lens 4 is arranged at the output end of the wave synthesizer and used for collimating and homogenizing the output light spots of the wave synthesizer; and a concave lens mechanism 5 provided at the rear end of the self-focusing lens; the concave lens mechanism 5 is used for amplifying and outputting the homogenized light spot. The semiconductor lasers 1 can be arranged in a plurality, and each semiconductor laser 1 emits laser light with different wavelengths to realize multi-wavelength output; each semiconductor output end is connected with the first optical fiber 2, the first optical fiber 2 is utilized to realize laser output, laser is coupled through the combiner mechanism 3, and the laser is combined into one-way output, so that the optical path loss is reduced; and secondly, the self-focusing lens 4 and the concave lens mechanism 5 are arranged at the rear end of the combiner mechanism 3, and spot homogenization and amplification treatment are respectively carried out, so that the laser treatment effect is improved. Compared with the prior art, the technical scheme can meet the treatment requirement of multiple wavelengths, obtain the light spot output with uniform and coincident height and large area, and improve the treatment effect.
Example 1:
the present application uses the three-wave combiner 9 as an example, and examples are as follows:
specifically, in the embodiment of the present utility model, the semiconductor laser 11 includes: 1064nm semiconductor laser 1, 810nm semiconductor laser 1, and 638nm semiconductor laser 1.
The output ends of the 1064nm semiconductor laser 1, the 810nm semiconductor laser 1 and the 638nm semiconductor laser 1 are respectively connected with the first optical fiber 2, and the semiconductor laser 11 respectively emits laser light with corresponding wavelengths.
Specifically, in an embodiment of the present utility model, the combiner includes: a single-fiber collimator 6 connected to the first optical fiber 2 outputting laser light of different wavelengths through different input ports; the single-fiber collimator 6 only allows the wavelength laser light emitted by the semiconductor laser 1 connected with the first optical fiber 2 to pass through; a filter mirror 7 arranged at the rear end of the single-fiber collimator 6; the filter 7 only allows the laser light with the wavelength emitted by the semiconductor laser 1 connected with the first optical fiber 2 to pass through and reflects the laser light with the other wavelengths; and a dual-fiber collimator 8 arranged at the rear end of the filter 7 and allowing the laser beams with various wavelengths to pass through.
Specifically, in the embodiment of the present utility model, the three-wave synthesizer 9 includes: the 4 single-fiber collimators 6 are respectively a first single-fiber collimator 10, a second single-fiber collimator 11, a third single-fiber collimator 12 and a fourth single-fiber collimator 13;2 double-fiber collimators 8, namely a first double-fiber collimator 16 and a second double-fiber collimator 17; and 2 said filter mirrors 7, a first filter mirror 14 and a second filter mirror 15, respectively.
Wherein, in the present embodiment, the transmission wavelength of the first single-fiber collimator 10 is consistent with that of the 1064nm semiconductor laser 1; the transmission wavelength of the second single-fiber collimator 11 is consistent with that of the 810nm semiconductor laser 1; the transmission wavelength of the third single-fiber collimator 12 and the fourth single-fiber collimator 13 is consistent with that of the 638nm semiconductor laser 1; the transmission wavelengths of the first dual-fiber collimator 16 include 1064nm,810nm and 638nm; the second dual collimator 17 has transmission wavelengths including 810nm and 638nm.
Specifically, in the embodiment of the present utility model, the first filter mirror 14 is a mirror that transmits 1064nm wavelength and reflects 810nm and 638nm wavelengths; the second filter mirror 15 is a mirror transmitting 810nm wavelength and reflecting 638nm wavelength.
Specifically, in the embodiment of the present utility model, in the three-wave combiner 9, the first single-fiber collimator 10, the second single-fiber collimator 11, and the third single-fiber collimator 12 are sequentially arranged in parallel in a row, and are connected to different semiconductor lasers 1; the fourth single-fiber collimator 13 is arranged at the rear end of the third single-fiber collimator 12; the first filter mirror 14 is arranged at the rear end of the first single-fiber collimator 10 in parallel, and the second filter mirror 15 is arranged at the rear end of the second single-fiber collimator 11 in parallel; the first dual-fiber collimator 16 is arranged at the rear end of the first filter mirror 14 in parallel, and the second dual-fiber collimator is arranged at the rear end of the second filter mirror 15 in parallel; the fourth single-fiber collimator 13 is connected to the second double-fiber collimator 17, and the second double-fiber collimator 17 is connected to the first double-fiber collimator 16, so as to transmit laser light with different wavelengths.
As shown in fig. 2, the laser beam with the wavelength of 1064nm is input from the port (1) of the three-wave combiner 9, passes through the first single-fiber collimator 10, the first filter 14 and the first dual-fiber collimator 16, and then is output from the port (4); the 810nm laser is input from the port (2) of the three-wave combiner 9, passes through the second single-line collimator 11 and the second filter 15, then reaches the second double-fiber collimator 17, passes from the second double-fiber collimator 17 to the second double-fiber collimator 16, passes to the first filter 14, and is reflected and output from the port (4) of the three-wave combiner 9; the 638nm laser is input from the port (3) of the three-wave combiner 9, passes through the third single-fiber collimator 12 and the fourth single-fiber collimator 13, then passes through the second double-fiber collimator 17 to the second filter mirror 15, and then passes to the second double-fiber collimator 16, then is reflected by the first filter mirror 14, and then passes to the port (4) of the three-wave combiner 9 to be output. Therefore, three wavelengths are input into the three-wave combiner 9 to combine one path of light output, so that high-precision wave combination is achieved.
Specifically, in the embodiment of the present utility model, the concave lens mechanism 5 is specifically a single concave lens structure or a double concave lens structure.
In particular, in an embodiment of the utility model, the self-focusing lens 4 is in particular a lens with an intercept of 0.23 itself; the first optical fiber 2 is specifically a quartz optical fiber with the same structure and material.
In the embodiment of the utility model, in order to reduce the difficulty of collimation, a coupling space is reserved, and the self-focusing lens 4 adopts the lens with the self-contained intercept of 0.23.
Specifically, in the embodiment of the present utility model, the semiconductor laser 1 includes a dual wavelength laser, a three wavelength laser, a four wavelength laser, or a plurality of lasers of different wavelengths, each of which emits wavelength laser light.
Specifically, in the embodiment of the present utility model, the convex lens 5 is specifically a single concave lens structure or a double concave lens structure. Specifically, in an embodiment of the present utility model, the self-focusing lens 49 is embodied as a lens with an intercept of 0.23. Specifically, in the embodiment of the present utility model, the first optical fiber 2 is a silica optical fiber with the same structure and material.
Specifically, in the embodiment of the present utility model, the semiconductor laser 1 includes a dual wavelength laser, a three wavelength laser, a four wavelength laser, or a plurality of lasers of different wavelengths, each of which emits wavelength laser light.
The laser spots are collimated by the self-focusing lens 4, so that the spots are homogenized; after homogenization, the light spots pass through the concave lens mechanism 5 for amplification output treatment, so that multi-wavelength output, multi-light-spot height superposition and large-area uniform light spots are realized, and a better treatment effect than that of single wavelength can be achieved.
In the above-mentioned manner, the optical path mechanism of the multi-wavelength laser therapeutic apparatus according to the embodiment of the present utility model may be provided with a plurality of semiconductor lasers 1, and each semiconductor laser 1 emits laser light with different wavelengths, so as to implement multi-wavelength output; each semiconductor output end is connected with the first optical fiber 2, the first optical fiber 2 is utilized to realize laser output, laser is coupled through the combiner mechanism 3, and the laser is combined into one-way output, so that the optical path loss is reduced; and secondly, the self-focusing lens 4 and the concave lens mechanism 5 are arranged at the rear end of the combiner mechanism 3, and spot homogenization and amplification treatment are respectively carried out, so that the laser treatment effect is improved. Compared with the prior art, the technical scheme of the utility model can meet the treatment requirement of multipath wavelengths, acquire the light spot output with uniform superposition and large area, and improve the treatment effect
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The light path mechanism of the multi-wavelength laser therapeutic instrument is characterized by comprising:
semiconductor lasers of different wavelengths, the semiconductor lasers being used to emit laser light of corresponding wavelengths;
the first optical fiber is arranged at the rear end of the semiconductor laser and used for outputting the laser;
a combiner mechanism coupled to the first optical fiber; the wave combiner mechanism is used for coupling laser with different wavelengths to synthesize one path of output;
the self-focusing lens is arranged at the output end of the wave combiner mechanism and used for collimating and homogenizing the output light spots of the wave combiner; and a concave lens mechanism arranged at the rear end of the self-focusing lens; the concave lens mechanism is used for amplifying and outputting the homogenized light spots.
2. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 1, wherein the combiner comprises: the single-fiber collimator is connected with a first optical fiber for outputting laser with different wavelengths through different input ports; the single-fiber collimator only allows the wavelength laser emitted by the semiconductor laser connected with the first optical fiber to pass through;
the filter mirror is arranged at the rear end of the single-fiber collimator; the filter only allows the laser light with the wavelength emitted by the semiconductor laser connected with the first optical fiber to pass through, and reflects the laser light with the rest wavelengths.
3. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 2, wherein the combiner further comprises: and the double-fiber collimator is arranged at the rear end of the filter and allows the laser with various wavelengths to pass through.
4. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 3, wherein the combiner mechanism comprises: a dual wave combiner, a triple wave combiner, or a multiple wave combiner.
5. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 4, wherein the tri-wave combiner comprises: the 4 single-fiber collimators are respectively a first single-fiber collimator, a second single-fiber collimator, a third single-fiber collimator and a fourth single-fiber collimator; the two double-fiber collimators are respectively a first double-fiber collimator and a second double-fiber collimator; and 2 filter mirrors, namely a first filter mirror and a second filter mirror.
6. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 5, wherein in the three-wave combiner, the first single-fiber collimator, the second single-fiber collimator and the third single-fiber collimator are sequentially arranged in parallel in a row, and are connected to different semiconductor lasers; the fourth single-fiber collimator is arranged at the rear end of the third single-fiber collimator; the first filter lens is arranged at the rear end of the first single-fiber collimator in parallel, and the second filter lens is arranged at the rear end of the second single-fiber collimator in parallel; the first double-fiber collimator is arranged at the rear end of the first filter lens in parallel, and the second double-fiber collimator is arranged at the rear end of the second filter lens in parallel; the fourth single-fiber collimator is connected with the second double-fiber collimator, and the second double-fiber collimator is connected with the first double-fiber collimator and used for transmitting laser with different wavelengths.
7. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 1, wherein the concave lens mechanism is specifically a single concave lens structure or a double concave lens structure.
8. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 6, wherein the self-focusing lens is specifically a lens with an intercept of 0.23.
9. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 1, wherein the first optical fiber is specifically a quartz optical fiber of the same structure and material.
10. The optical path mechanism of the multi-wavelength laser therapeutic apparatus according to claim 9, wherein the semiconductor laser includes a dual wavelength laser, a three wavelength laser, a four wavelength laser, or a plurality of lasers of different wavelengths, each of the lasers emitting wavelength laser light.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320735461.8U CN220294000U (en) | 2023-04-06 | 2023-04-06 | Optical path mechanism of multi-wavelength laser therapeutic instrument |
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| CN202320735461.8U CN220294000U (en) | 2023-04-06 | 2023-04-06 | Optical path mechanism of multi-wavelength laser therapeutic instrument |
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