CN114172011A - Medical laser capable of intelligently tuning frequency - Google Patents
Medical laser capable of intelligently tuning frequency Download PDFInfo
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- CN114172011A CN114172011A CN202111330258.4A CN202111330258A CN114172011A CN 114172011 A CN114172011 A CN 114172011A CN 202111330258 A CN202111330258 A CN 202111330258A CN 114172011 A CN114172011 A CN 114172011A
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- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001228 spectrum Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 3
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- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 208000002367 Retinal Perforations Diseases 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000007910 cell fusion Effects 0.000 description 1
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- 238000003745 diagnosis Methods 0.000 description 1
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- 239000003365 glass fiber Substances 0.000 description 1
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- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002406 microsurgery Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0085—Modulating the output, i.e. the laser beam is modulated outside the laser cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08086—Multiple-wavelength emission
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Laser Surgery Devices (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The invention relates to a medical laser capable of intelligently tuning frequency, which comprises a shell, wherein a fiber laser and an anti-reflection mirror are arranged in the shell, a supporting seat is arranged on a bottom plate in the shell, a shifting plate is arranged on one side of the supporting seat, an obliquely arranged reflection grating and a first reflecting mirror are arranged on the shifting plate, a first shaft body and a first driving mechanism for driving the shifting plate to deflect around the first shaft body and the bottom plate in a reciprocating manner, a second driving mechanism for driving the first reflecting mirror to deflect around the first shaft body in a reciprocating manner is arranged between the first reflecting mirror and the shifting plate, a light transmitting hole is formed in the supporting seat, a condenser is arranged on the shell, and the first driving mechanism or the second driving mechanism is controlled through an intelligent machine to change the first-order diffraction light fed back to an active area of the fiber laser to change the wavelength frequency so as to play a tuning frequency effect of zero-order diffraction light output, thereby realizing continuous wavelength and anti-reflection, High power and wide spectrum tuning, which is beneficial to improving the practicability and flexibility of the medical laser application.
Description
Technical Field
The invention relates to a medical laser capable of intelligently tuning frequency, and belongs to the technical field of laser equipment.
Background
The laser technology comprises a plurality of modern optical, electronic, mechanical and other technologies, not only opens up a research approach for researching acoustic life science and disease development, but also provides a new means for clinical treatment of diseases, medical measurement and diagnosis and microsurgery, and can be used for treating retinal holes, removing blood vessel blockage, performing laser broad-spectrum analysis, performing laser transillumination scissoring, focusing irradiation to destroy living cells, inducing cell fusion and the like. The fixed wavelength laser mainly comprises a working medium with light stimulated amplification effect, a resonant cavity consisting of an output coupling mirror and a full first reflector, and a pumping source for exciting the light working medium, and different application environments cause the cost increase, the flexibility reduction and the resource waste of the corresponding laser types along with the wavelength increase.
The tunable laser is a laser capable of continuously changing the output wavelength of the laser within a certain range, the fiber laser is a laser using rare earth element doped glass fiber as a gain medium, the tunable laser is mainly divided into a current control technology, a temperature control technology, a mechanical control technology and the like from the realization technology, the electric control technology realizes the wavelength tuning by changing the injection current, has ns-level tuning speed and wider tuning bandwidth but smaller output power, and the temperature control technology changes the refractive index of an active area of the laser so as to change the output wavelength of the laser.
Disclosure of Invention
The invention aims to provide a medical laser capable of intelligently tuning frequency, which changes the wavelength frequency of first-order diffraction light fed back to an active area of a fiber laser by intelligently and mechanically controlling a first driving mechanism or a second driving mechanism to change the wavelength frequency, plays a role of tuning frequency of zero-order diffraction light output, realizes continuous wavelength, high-power and wide-spectrum tuning, and is beneficial to improving the practicability and flexibility of medical laser application.
The invention is realized by the following technical scheme:
a medical laser capable of intelligently tuning frequency comprises a shell, wherein a fiber laser and an additional lens arranged at the end part of the fiber laser are arranged in the shell, a bottom plate is arranged in the shell, a supporting seat for arranging the fiber laser and the additional lens is arranged on the bottom plate, a shifting plate is arranged on one side of the supporting seat, a reflection grating obliquely arranged with an anti-reflection mirror and a first reflector obliquely arranged with the reflection grating are arranged on the shifting plate, a first shaft body positioned at the intersection point of the extension lines of the reflection grating and the first reflector and a first driving mechanism for driving the shifting plate to deflect around the first shaft body and the bottom plate in a reciprocating mode;
the supporting seat is provided with a first notch and a second notch, the first notch and the second notch are respectively provided with a first support and a second support which are used for fixing the fiber laser and the antireflection mirror, the interiors of the first support and the second support are communicated, the first support is provided with a high reflection film positioned at the tail part of the fiber laser, and the end part of the fiber laser is positioned in the first support;
the first driving mechanism comprises a first servo electric cylinder, a vertical second shaft body is arranged between the tail part of the first servo electric cylinder and the bottom plate, and the end part of a cylinder rod of the first servo electric cylinder is hinged with the third support;
a second driving mechanism for driving the first reflector to deflect around the first shaft body in a relatively reciprocating manner is arranged between the first reflector and the shifting plate, a second reflector which is obliquely arranged corresponding to the first reflector and a light hole which is arranged corresponding to the first reflector are arranged on the supporting seat, and a condenser which is arranged corresponding to the light hole is arranged on the shell;
the second driving mechanism comprises a second servo electric cylinder, a first connecting rod, a second connecting rod and a third connecting rod, a vertical third shaft body is arranged between the tail end of the second servo electric cylinder and the shifting plate, the end part of a cylinder rod of the second servo electric cylinder is hinged with the first connecting rod, a vertical fourth shaft body is arranged between the first connecting rod and the shifting plate, one end of the second connecting rod is hinged with the first connecting rod, the other end of the second connecting rod is hinged with the fourth support and the third connecting rod, and the end part of the third connecting rod is sleeved on the first shaft body;
a first baffle and a second baffle are respectively arranged on two sides of the reflection grating and the first reflector, third notches which are arranged on the first baffle and the second baffle and abdicate with the second driving mechanism respectively are arranged on the first baffle and the second baffle, and through holes which are arranged corresponding to the lens and the second reflector are arranged on the second baffle;
the support seat is provided with a thermistor, a ceramic heating sheet is arranged between the bottom plate and the shell, and the shell is provided with a controller interface which is electrically connected with the optical fiber laser, the first driving mechanism and the second driving mechanism.
The invention has the beneficial effects that:
(1) the fiber laser is excited to enable output light of the fiber laser to be projected on the lens under the reflection action of the high-reflection film and to irradiate the inclined reflection grating through the through hole of the second baffle, first-order diffraction light of the reflection grating is fed back to an active area of the fiber laser, zero-order diffraction light is reflected to the inclined first reflector, reflected through the first reflector and the inclined second reflector to the light-transmitting hole, and a condenser is used for condensing and stably outputting laser;
(2) the cylinder rod of the first servo electric cylinder of the first driving mechanism is controlled to extend or contract, the third support is pushed or pulled, the shifting plate is enabled to deflect around the first shaft body and the bottom plate in a reciprocating mode relatively, the incident angle of the fiber laser to the reflection grating is changed, the first-order diffraction light fed back to the active area of the fiber laser is enabled to change the wavelength frequency, the output wavelength frequency of the zero-order diffraction light is changed, and the effect of tuning the frequency is achieved;
(3) controlling a second driving mechanism, namely a cylinder rod of a second servo motor to extend or contract, pushing or pulling a hinged first connecting rod, wherein the first connecting rod pushes or pulls a second connecting rod in a relatively deflection way around a fourth shaft body, the second connecting rod pushes or pulls a third connecting rod and a fourth support in a hinged way, and the included angle between a first reflector and a reflection grating is changed to adjust the feedback rate and change the tuning range, so that the wavelength of light fed back to the active region of the fiber laser is changed, and the effect of tuning frequency is achieved;
in conclusion, the first driving mechanism or the second driving mechanism is controlled through an intelligent machine, continuous wavelength, high power and wide spectrum tuning are realized, stable output power and optical power are obtained, and the practicability and flexibility of medical laser application are improved.
Drawings
Fig. 1 is a left side perspective view of the present invention with the top of the housing omitted.
Fig. 2 is a right perspective view of fig. 1.
Fig. 3 is a top view structural diagram of fig. 1.
In the figure: the optical fiber laser comprises a shell 1, an optical fiber laser 2, an anti-reflection mirror 3, a bottom plate 4, a supporting seat 5, a shifting plate 6, a reflection grating 7, a first reflector 10, a first shaft 11, a first driving mechanism 8, a first notch 12 and a second notch 13, a first support 14 and a second support 15, a high-reflection film 16, a third support 17, a first servo electric cylinder 81, a second shaft 18, an arc limiting plate 19, a second driving mechanism 9, a second reflector 20, a light hole 21, a condenser 22, a limiting frame 23, a fourth support 24, a second servo electric cylinder 91, a first connecting rod 92, a second connecting rod 93 and a third connecting rod 94, a third shaft 25, a fourth shaft 26, a first baffle 27 and a second baffle 28, a third notch 29, a through hole 30, a thermistor 31, a ceramic heating sheet 32 and a controller interface 33.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
A medical laser capable of intelligently tuning frequency comprises a shell 1, wherein a fiber laser 2 and an anti-reflection mirror 3 arranged at the end part of the fiber laser 2 are arranged in the shell 1, a bottom plate 4 is arranged in the shell 1, a supporting seat 5 for arranging the fiber laser 2 and the anti-reflection mirror 3 is arranged on the bottom plate 4, a shifting plate 6 is arranged on one side of the supporting seat 5, a reflection grating 7 obliquely arranged with the anti-reflection mirror 3 and a first reflection mirror 10 obliquely arranged with the reflection grating 7 are arranged on the shifting plate 6, a first shaft body 11 positioned at the intersection point of extension lines of the reflection grating 7 and the first reflection mirror 10 and a first driving mechanism 8 for driving the shifting plate 6 to deflect around the first shaft body 11 and the bottom plate 4 in a reciprocating mode;
a first notch 12 and a second notch 13 are arranged on the supporting seat 5, a first support 14 and a second support 15 for fixing the fiber laser 2 and the antireflection mirror 3 are respectively arranged on the first notch 12 and the second notch 13, the first support 14 and the second support 15 are communicated with each other, a high reflection film 16 positioned at the tail part of the fiber laser 2 is arranged on the first support 14, and the end part of the fiber laser 2 is positioned in the first support 14;
a third support 17 for fixing the reflection grating 7 is arranged on the dial plate 6, the first driving mechanism 8 comprises a first servo electric cylinder 81, a vertical second shaft 18 is arranged between the tail of the first servo electric cylinder 81 and the bottom plate 4, and the end part of a cylinder rod of the first servo electric cylinder 81 is hinged with the third support 17;
the shifting plate 6 is of a fan-shaped structure, and an arc-shaped limiting plate 19 which is positioned between the supporting seat 5 and the shifting plate 6, is in sliding fit with the outer wall of the shifting plate 6 and is concentric with the first shaft body 11 is arranged on the bottom plate 4;
a second driving mechanism 9 for driving the first reflector 10 to relatively and reciprocally deflect around the first shaft 11 is arranged between the first reflector 10 and the shifting plate 6, a second reflector 20 obliquely arranged corresponding to the first reflector 10 and a light hole 21 arranged corresponding to the first reflector 10 are arranged on the supporting seat 5, and a condenser 22 arranged corresponding to the light hole 21 is arranged on the shell 1;
the shifting plate 6 is provided with a limiting frame 23, the cross sections of two sides of the limiting frame 23 are of an arc structure concentric with the first shaft body 11, a fourth support 24 which is in sliding fit with the inner wall of the limiting frame 23 and is used for fixing the first reflector 10 is arranged in the limiting frame 23, the second driving mechanism 9 comprises a second servo electric cylinder 91, a first connecting rod 92, a second connecting rod 93 and a third connecting rod 94, a vertical third shaft body 25 is arranged between the tail end of the second servo electric cylinder 91 and the shifting plate 6, the end part of a cylinder rod of the second servo electric cylinder 91 is hinged to the first connecting rod 92, a vertical fourth shaft body 26 is arranged between the first connecting rod 92 and the shifting plate 6, one end of the second connecting rod 93 is hinged to the first connecting rod 92, the other end of the second connecting rod is hinged to the fourth support 24 and the third connecting rod 94, and the end part of the third connecting rod 94 is sleeved on the first shaft body 11;
a first baffle plate 27 and a second baffle plate 28 are respectively arranged on two sides of the reflection grating 7 and the first reflector 10, third notches 29 which are arranged on the first baffle plate 27 and the second baffle plate 28 and are abducted with the second driving mechanism 9 are respectively arranged on the first baffle plate and the second baffle plate 28, and through holes 30 which are arranged corresponding to the lens 3 and the second reflector 20 are arranged on the second baffle plate 28;
the cross section of the second notch 13 is in a V-shaped structure and is used for fixing the second reflector 20 positioned at one side of the lens 3, and the light hole 21 and the condenser 22 are obliquely arranged with the second reflector 20;
the support seat 5 is provided with a thermistor 31, a ceramic heating sheet 32 is arranged between the bottom plate 4 and the shell 1, and the shell 1 is provided with a controller interface 33 electrically connected with the fiber laser 2, the first driving mechanism 8 and the second driving mechanism 9.
The working principle of the invention is as follows:
referring to the attached drawings, the fiber laser 2 can adopt a crystal fiber laser, a nonlinear optical fiber laser, a rare earth (Nd, Yb or Er) doped fiber laser and a plastic fiber laser, the fiber laser 2, a first servo electric cylinder 81 of a first driving mechanism 8, a second servo electric cylinder 91 of a second driving mechanism 9 and a ceramic heating plate 32 are electrically connected with external power supply and intelligent automatic control opening and closing through a controller interface 33, and the controller interface 33 is fixed on the top or side of the shell 1; the optical fiber laser 2, the anti-reflection mirror 3, the reflection grating 7, the first reflector 10, the second reflector 20 and the condenser 22 can be fixed on the first support 14, the second support 15, the third support 17, the fourth support 24, the support base 5 and the shell 1 through thread matching or bolts and can be detachably connected and installed;
the optical fiber laser 2 is excited and pumped by a current mode, so that the output light of the optical fiber laser 2 is projected on the lens 3 on the second support 15 in the first support 14 under the reflection action of the high reflection film 16 and is irradiated on the inclined reflection grating 7 through the through hole 30 of the second baffle 28, the first-order diffraction light of the reflection grating 7 is fed back to the active region of the optical fiber laser 2, the zero-order diffraction light is reflected to the first reflecting mirror 10 on the inclined third support 17, is reflected by the first reflecting mirror 10, is irradiated on the inclined second reflecting mirror 20 at the second notch 13 through the through hole 30, is reflected to the light-transmitting hole 21 by the second reflecting mirror 20, and is condensed by the condensing mirror 22 of the shell 1 to output laser;
the section of the second notch 13 is of a V-shaped structure so as to guide light conveniently, the thermistor 31 is fixedly adhered to the supporting seat 5 and used for transmitting the temperature of the fiber laser 2, the circuit of the thermistor 31 is connected with an external controller through a controller interface 33, the temperature is detected in real time, the ceramic heating sheet 32 is controlled to heat the bottom of the bottom plate 4, and the temperature stability of a working environment is ensured;
the first driving mechanism 8, namely the cylinder rod of the first servo electric cylinder 81, is controlled to extend or contract, the third support 17 is pushed or pulled, the tail part of the first servo electric cylinder 81 is relatively deflected around the second shaft body 18, the cylinder rod end part of the first servo electric cylinder 81 is relatively deflected around a hinge joint, the dial plate 6 is stably and reciprocally deflected around the first shaft body 11 and the bottom plate 4 under the sliding fit of the sector dial plate 6 and the arc-shaped limiting plate 19, simultaneously, the angle of the reflection grating 7 and the first reflecting mirror 10 relative to the position of the optical fiber laser 2 is changed, the incident angle of the optical fiber laser 2 to the reflection grating 7 is changed, the wavelength frequency of the first-order diffraction light fed back to the active area of the optical fiber laser 2 is changed, new output wavelength and frequency are obtained, the frequency of the zero-order diffraction light output wavelength to the condenser 22 through the second reflecting mirror 20 is changed, and the changed output azimuth after the change is inconvenient because the first shaft body 11 is positioned at the intersection point of the reflection grating 7 and the first reflecting mirror 10, the function of tuning frequency is achieved;
controlling the second driving mechanism 9, namely the cylinder rod of the second servo motor to extend or contract, pushing or pulling the hinged first connecting rod 92, the tail part of the second servo motor to deflect relatively around the third shaft body 25, the cylinder rod of the second servo motor to deflect relatively around the hinge position with the first connecting rod 92, the first connecting rod 92 to deflect relatively around the fourth shaft body 26, so that the end part of the first connecting rod 92 pushes or pulls the second connecting rod 93 through the hinge, the second connecting rod 93 pushes or pulls the third connecting rod 94 and the fourth bracket 24 through the hinge, so that the third connecting rod 94 deflects back and forth around the first shaft body 11, the fourth bracket 24 makes the first reflecting mirror 10 deflect back and forth around the first shaft body 11 under the limit sliding fit of the arc-shaped inner wall of the limit frame 23, and changing the tuning range of the angle adjusting feedback rate between the first reflecting mirror 10 and the reflecting grating 7 due to the fact that the first shaft body 11 is positioned at the intersection point of the reflecting grating 7 and the first reflecting mirror 10, the wavelength of the light fed back to the active region of the fiber laser 2 is changed to play a role of tuning the frequency;
the first baffle 27 and the second baffle 28 give way for the movement of the first driving mechanism 8 and the second driving mechanism 9 through the third notch 29, and play a role in squeezing the single-mode line width, and the light gathering and transmitting functions are ensured by the V-shaped second notch 13 and the light transmitting hole 21;
in conclusion, the first driving mechanism 8 or the second driving mechanism 9 is controlled by an intelligent machine, the positions and the included angles of the reflection grating 7 and the first reflecting mirror 10 are changed, and the positions and the included angles of the opposite optical fiber laser 2, the second reflecting mirror 20 and the collecting mirror 22 are changed, so that the first-order diffraction light fed back to the active region of the optical fiber laser 2 is changed to change the wavelength frequency, the tuning frequency of the zero-order diffraction light output is realized, the tuning of continuous wavelength, high power and wide spectrum is realized, the stable output power and optical power are obtained, and the practicability and the flexibility of the application of the medical laser are improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
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; either mechanically or electrically, the mirror comprising a lens and a frame, such that the frame is threaded or bolted; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A medical laser capable of intelligently tuning frequency comprises a shell (1), wherein a fiber laser (2) and an additional lens (3) arranged at the end part of the fiber laser (2) are arranged in the shell (1), it is characterized in that a bottom plate (4) is arranged in the shell (1), a supporting seat (5) for arranging the optical fiber laser (2) and the anti-reflection mirror (3) is arranged on the bottom plate (4), a shifting plate (6) is arranged on one side of the supporting seat (5), a reflection grating (7) which is obliquely arranged with the lens (3) and a first reflector (10) which is obliquely arranged with the reflection grating (7) are arranged on the shifting plate (6), a first shaft body (11) which is positioned at the intersection point of the extension lines of the reflection grating (7) and the first reflector (10) and a first driving mechanism (8) which is used for driving the shifting plate (6) to deflect around the first shaft body (11) and the bottom plate (4) in a reciprocating mode are arranged between the shifting plate (6) and the bottom plate (4);
be equipped with between first speculum (10) and dial board (6) and be used for driving first speculum (10) around first axis body (11) second actuating mechanism (9) that relatively reciprocates and deflect, be equipped with on supporting seat (5) correspond second speculum (20) that the slope set up with first speculum (10), correspond light trap (21) that sets up with first speculum (10), be equipped with on casing (1) and correspond condensing lens (22) that set up with light trap (21).
2. The medical laser capable of intelligently tuning the frequency according to claim 1, wherein a first notch (12) and a second notch (13) are formed in the supporting base (5), a first bracket (14) and a second bracket (15) for fixing the fiber laser (2) and the anti-reflection mirror (3) are respectively arranged on the first notch (12) and the second notch (13), the first bracket (14) and the second bracket (15) are communicated, a high-reflection film (16) located at the tail of the fiber laser (2) is arranged on the first bracket (14), and the end of the fiber laser (2) is located inside the first bracket (14).
3. A frequency-intelligently tunable medical laser according to claim 2, characterized in that the second notch (13) has a V-shaped cross-section and is used to fix the second reflector (20) on one side of the magnifying lens (3).
4. The medical laser capable of intelligently tuning the frequency according to claim 1, wherein a third support (17) for fixing the reflection grating (7) is arranged on the dial plate (6) by hand, the first driving mechanism (8) comprises a first servo electric cylinder (81), a vertical second shaft body (18) is arranged between the tail part of the first servo electric cylinder (81) and the bottom plate (4), and the end part of a cylinder rod of the first servo electric cylinder (81) is hinged with the third support (17).
5. The medical laser capable of intelligently tuning the frequency according to claim 1, wherein the dial plate (6) is of a fan-shaped structure, and the bottom plate (4) is provided with an arc-shaped limiting plate (19) which is located between the supporting seat (5) and the dial plate (6), is in sliding fit with the outer wall of the dial plate (6), and is concentric with the first shaft body (11).
6. The medical laser capable of intelligently tuning the frequency according to claim 1, wherein the dial plate (6) is provided with a limit frame (23), the cross-section of both sides of the limit frame (23) is in an arc structure concentric with the first shaft body (11), the limit frame (23) is provided with a fourth support (24) which is in sliding fit with the inner wall of the limit frame (23) and is used for fixing the first reflector (10), the second driving mechanism (9) comprises a second servo electric cylinder (91), a first connecting rod (92), a second connecting rod (93) and a third connecting rod (94), a vertical third shaft body (25) is arranged between the tail end of the second servo electric cylinder (91) and the dial plate (6), the end of the cylinder rod of the second servo electric cylinder (91) is hinged with the first connecting rod (92), a vertical fourth shaft body (26) is arranged between the first connecting rod (92) and the dial plate (6), one end of the second connecting rod (93) is hinged to the first connecting rod (92), the other end of the second connecting rod is hinged to the fourth support (24) and the third connecting rod (94), and the end portion of the third connecting rod (94) is sleeved on the first shaft body (11).
7. The medical laser capable of intelligently tuning the frequency according to claim 1, wherein a first baffle (27) and a second baffle (28) are respectively arranged on two sides of the reflection grating (7) and the first reflector (10), a third notch (29) which is arranged on the first baffle (27) and the second baffle (28) and is abducted with the second driving mechanism (9) is respectively arranged on the first baffle (27) and the second baffle (28), and a through hole (30) which is arranged corresponding to the lens (3) and the second reflector (20) is arranged on the second baffle (28).
8. A frequency-intelligently tunable medical laser according to claim 1, characterized in that the light-transmitting hole (21) and the condenser (22) are arranged obliquely to the second reflector (20).
9. The medical laser device capable of intelligently tuning the frequency according to claim 1, wherein the support base (5) is provided with a thermistor (31), and a ceramic heating plate (32) is arranged between the bottom plate (4) and the shell (1).
10. The medical laser capable of intelligently tuning the frequency according to any one of claims 1 to 9, wherein a controller interface (33) electrically connected with the fiber laser (2), the first driving mechanism (8) and the second driving mechanism (9) is arranged on the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330258.4A CN114172011A (en) | 2021-11-11 | 2021-11-11 | Medical laser capable of intelligently tuning frequency |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0823084D0 (en) * | 2008-12-18 | 2009-01-28 | Renishaw Plc | Laser Apparatus |
| CN105591283A (en) * | 2016-03-18 | 2016-05-18 | 厦门大学 | Tuning method of grating external cavity semiconductor laser wavelength |
| CN112751260A (en) * | 2021-01-05 | 2021-05-04 | 中国人民解放军国防科技大学 | Piezoelectric synchronous tuning ECDL laser based on fan-shaped ring structure |
| CN112751259A (en) * | 2021-01-05 | 2021-05-04 | 中国人民解放军国防科技大学 | Class-synchronous tuning external cavity semiconductor laser based on flexible mechanical structure |
| CN113036599A (en) * | 2021-03-04 | 2021-06-25 | 中国科学院光电技术研究所 | Method for improving output power of Littman structure tunable external cavity semiconductor laser |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0823084D0 (en) * | 2008-12-18 | 2009-01-28 | Renishaw Plc | Laser Apparatus |
| CN105591283A (en) * | 2016-03-18 | 2016-05-18 | 厦门大学 | Tuning method of grating external cavity semiconductor laser wavelength |
| CN112751260A (en) * | 2021-01-05 | 2021-05-04 | 中国人民解放军国防科技大学 | Piezoelectric synchronous tuning ECDL laser based on fan-shaped ring structure |
| CN112751259A (en) * | 2021-01-05 | 2021-05-04 | 中国人民解放军国防科技大学 | Class-synchronous tuning external cavity semiconductor laser based on flexible mechanical structure |
| CN113036599A (en) * | 2021-03-04 | 2021-06-25 | 中国科学院光电技术研究所 | Method for improving output power of Littman structure tunable external cavity semiconductor laser |
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