CN206893992U - Hundred picosecond laser beauty instruments - Google Patents
Hundred picosecond laser beauty instruments Download PDFInfo
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- CN206893992U CN206893992U CN201720639205.3U CN201720639205U CN206893992U CN 206893992 U CN206893992 U CN 206893992U CN 201720639205 U CN201720639205 U CN 201720639205U CN 206893992 U CN206893992 U CN 206893992U
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Abstract
The utility model provides a kind of hundred picosecond laser beauty instruments.The hundred picosecond lasers beauty instrument includes first laser rod, xenon lamp, second laser rod, housing, adjusting Q crystal, outgoing mirror, aperture, the first polarizer, Effect of Back-Cavity Mirror, optical transmission unit, the second polarizer, the first convex lens, the 3rd total reflective mirror, the 4th total reflective mirror, quarter wave plate, SBS ponds, the 5th total reflective mirror, the 6th total reflective mirror, the 7th total reflective mirror, laser amplifier, nonlinear crystal and light-conducting arm；First laser rod, xenon lamp and second laser rod are fixed in housing, and first laser rod, xenon lamp and second laser rod be arranged in parallel.Hundred picosecond lasers beauty instrument of the present utility model is by the way that first laser rod and second laser rod are fixed in one apparatus, by multiple speculums by the more compact of light path design, and realized by second laser rod and amplified twice, so that cause that whole beauty instrument is compact-sized in the case where obtaining high energy picosecond laser, convenient use.
Description
Technical field
It the utility model is related to laser beautifying technology, more particularly to a kind of hundred picosecond laser beauty instruments.
Background technology
At present, it is currently used for laser cosmetic instrument and typically uses nanosecond (ns) laser.However, the beauty effect of nanosecond laser
Fruit is not fine.
Because the action time of laser is shorter, the laser energy that accumulation is absorbed in target tissue is just less susceptible to surrounding group
Diffusion is knitted, energy is farthest confined in the target that needs are treated, and protects normal surrounding tissue, so as to treatment
Selectivity is stronger.
Under hundred Ps Laser Pulse width conditions, realize that higher single pulse energy and higher power are worldwide difficulties
Topic, only have CYNOSURE companies of the U.S. and SYNERON companies of Israel in the world at present, developed in 2014 for treating color
Disposition disease is tatooed with removal and hundred picosecond lasers of beauty.
Hundred picosecond lasers are nearly free from thermal losses, almost due to extremely short pulse width in interaction process
Without thermal ablation.In laser medicine field, the mechanism of action of hundred picosecond lasers is based primarily upon photodynamics (optoacoustic) effect, and pulse is all
Phase longer beauty laser and intense pulsed light (IPL) equipment then use photo-thermal effect.By shorter hundred picosecond pulse and Geng Gao
Peak power, hundred picosecond lasers can by less course for the treatment of and it is more preferable the effect of, treat pigmentosa disease of skin, effectively
Removal is tatooed, and is improved patient comfort, is become a kind of new cosmetic tool.
At present, obtaining the technology path of hundred picosecond pulse mainly has two kinds, mode-locking technique and short cavity technology.Mode-locking technique one
As obtained using locked mode element and be shorter than the pulse of a nanosecond, debugging is complicated, and stability is poor, and single pulse energy is low, and it is inconvenient to safeguard；
Short cavity technology typically uses LD pumped thin disk crystal, and resonator is very short, and beam quality is poor, and will to coolant water temperature control
Ask high.Both approaches will realize hundred picosecond lasers of big energy, involve great expense.
Utility model content
It has been given below on brief overview of the present utility model, to provide on some sides of the present utility model
The basic comprehension in face.It should be appreciated that this general introduction is not on exhaustive general introduction of the present utility model.It is not intended to really
Fixed crucial or pith of the present utility model, nor intended limitation the scope of the utility model.Its purpose is only with letter
The form of change provides some concepts, in this, as the preamble in greater detail discussed later.
In consideration of it, the utility model provides a kind of hundred picosecond laser beauty instruments, at least to solve existing picosecond laser
The problem of beauty instrument is bulky, expensive.
According to one side of the present utility model, there is provided a kind of hundred picosecond laser beauty instruments, hundred picosecond laser beauty instruments
Including first laser rod, xenon lamp, second laser rod, housing, adjusting Q crystal, outgoing mirror, aperture, the first polarizer, back cavity
Mirror, optical transmission unit, the second polarizer, the first convex lens, the 3rd total reflective mirror, the 4th total reflective mirror, quarter wave plate, SBS ponds, the 5th
Total reflective mirror, the 6th total reflective mirror, the 7th total reflective mirror, laser amplifier, nonlinear crystal and light-conducting arm；Outgoing mirror reflects for part
Mirror；First laser rod, xenon lamp and second laser rod are fixed in housing, and first laser rod, xenon lamp and second laser rod are put down
Row is set；Along the optical transmission direction of first laser rod, aperture, the first polarizer are sequentially provided with the side of first laser rod
And Effect of Back-Cavity Mirror, and it is sequentially provided with adjusting Q crystal and outgoing mirror in the opposite side of first laser rod so that laser is in outgoing mirror and back cavity
Vibrate between mirror and exported by outgoing mirror, and make the p-polarization light from outgoing mirror outgoing successively via the biography after optical transmission unit
Defeated direction change 180 degree after, pass through one end that second laser rod is incident to after the second polarizer again, and from the another of second laser rod
One end is emitted；The first convex lens, the 3rd total reflective mirror, the 4th total reflective mirror, 1/4 are sequentially provided with along the outgoing light direction of second laser rod
Wave plate and SBS ponds so that the p-polarization light being emitted from the other end of second laser rod is all-trans via the first convex lens, the 3rd successively
Quarter wave plate is incident to after mirror and the 4th total reflective mirror, and is focused to after being converted to circularly polarized light by quarter wave plate in SBS ponds so that
S polarised lights are converted to from the circularly polarized light that SBS ponds reversely export via quarter wave plate and successively via the 4th total reflective mirror, the 3rd complete
The second polarizer is incident to after anti-mirror, the first convex lens and second laser rod, and is reflected by the second polarizer；Wherein, from SBS ponds
The circularly polarized light reversely exported is pulsewidth for the stokes light in the range of 100ps-800ps；It is inclined from the s of the second polarizer reflection
Shake light transmission direction on be sequentially provided with the 5th total reflective mirror, the 6th total reflective mirror, the 7th total reflective mirror, laser amplifier and non-linear crystalline substance
Body, so that the s polarised lights from the reflection of the second polarizer are put via the 5th total reflective mirror, the 6th total reflective mirror and the 7th total reflective mirror by laser
Big device amplification, and cause the s polarised lights after amplification by being inputted after nonlinear crystal to the laser input of light-conducting arm, with from leading
The laser output output of light arm.
Further, outgoing mirror is 50% reflection, 50% diaphotoscope.
Further, outgoing mirror includes plano-concave lens, and the second convex lens is provided between plano-concave lens and optical transmission unit
Mirror；Wherein, the plane of plano-concave lens scribbles part reflective semitransparent film, and the concave surface of plano-concave lens scribbles anti-reflection film, so that laser is in plano-concave
Vibrate between the plane and Effect of Back-Cavity Mirror of lens and exported by the plane of plano-concave lens, and make from the planar exit of plano-concave lens
P-polarization light turns into directional light after the concave surface diverging of plano-concave lens and the second convex lens are assembled, and realization expands.
Further, optical transmission unit includes the first total reflective mirror and the second total reflective mirror, wherein, it is inclined from the p of outgoing mirror outgoing
Shake optical transmission direction relative p-polarization light from outgoing mirror outgoing of the light after the reflection of the first total reflective mirror and the reflection of the second total reflective mirror
Transmission direction changes 180 degree, reenters and is incident upon the second polarizer.
Further, optical transmission unit includes right angle prism, wherein, from the p-polarization light vertical incidence of outgoing mirror outgoing
To the base of the right angle prism, after being reflected successively by two right-angle sides of the right angle prism, from the bottom of the right angle prism
After the vertical exit of side, reenter and be incident upon the second polarizer.
The existing method for realizing psec generally has two kinds, and one kind is mode-locking technique, and another kind is short cavity technology.Wherein, lock
Mould laser structure is complicated, and stability is poor, and single-pulse laser energy is low, if to realize the big energy psec that beauty instrument needs, needs
The regenerative amplification and casacade multi-amplifier that structure is extremely complex are wanted, construction cost and maintenance cost are all extremely high；And short cavity technology
It is to grow extremely short laser oscillator using a chamber to produce a psec seed, in order to realize extremely short chamber length, it is necessary to use
Diode pumping structure, in order to obtain stable picosecond laser output from short cavity oscillator, to the temperature control of diode extremely
Strictly, the change of environment temperature is very sensitive to this temperature control, causes system complex, and with high costs, stability is poor, also, due to
Chamber length is too short, and laser output energy is very low, it is necessary to can be only achieved high-energy psec using multistage amplification.
Compared to above prior art, hundred picosecond lasers beauty instrument of the present utility model, realized and swashed by second laser rod
The amplification first of light, hundred picosecond lasers are obtained by SBS ponds, then hundred picosecond laser backtrackings of acquisition is passed through second laser
Rod, realize the secondary amplification of laser.First amplification and it is secondary amplification be to be realized by second laser rod, and second laser rod and
First laser rod is fixed in a device (i.e. housing), it is achieved thereby that causing in the case where to laser repeatedly amplify
Whole instrument it is compact-sized, take up space less effect.Compared to existing psec beauty instrument, hundred skin of the present utility model
Second laser cosmetic instrument can not only realize traditional preferable effect of psec beauty instrument, and realize picosecond laser using SBS, pass through
The compact light path design of multistage amplification so that beauty instrument more compact structure of the present utility model, use are more convenient.
In addition, the amplification three times of laser is realized by laser amplifier.So, hundred picosecond laser of the present utility model is beautiful
Looks is by the way that second laser rod and first laser rod are fixed in a device (i.e. housing), by multiple speculums by light path
That designs is more compact, and is realized by second laser rod 3 and amplified twice, is combined by features above so that whole instrument
Light source part closely, take up space smaller；On this basis, with reference to laser amplifier, whole apparatus structure is being caused very
In the case of compact, realization is amplified three times, obtains the high energy output of hundred picosecond lasers.
To sum up, hundred picosecond lasers beauty instrument of the present utility model has the advantages that：(1) hundred skin of the present utility model
Second laser cosmetic instrument, by the way that the laser pump cavity of oscillator and first order amplifier is combined together, reduces a laser pump cavity, can
To use two laser bars of an xenon flash lamp pumping, the utilization ratio of pump light is improved, realizes compact-sized, improves laser
The stability of output, reduces cost；(2) hundred picosecond lasers beauty instrument of the present utility model, it obtains psec using SBS technologies
Laser, SBS have the energy reflectivity more than 90%, and capacity usage ratio is high, and simple in construction, cost is cheap, and there is SBS phase to be total to
Yoke characteristic, can there is autocollimatic function, convenient regulation, be favorably improved Stability Analysis of Structures completely along backtracking light path
Property；(3) hundred picosecond lasers beauty instrument of the present utility model, the recessed of the flat output mirror of laser oscillator and first order beam expanding lens
Lens merge into a mirror, realize compact-sized, save a mirror and an adjustment frame, stability is more preferable.It is this
For method only in our utility model, oscillator is small light spot, it is necessary to expand using average mirror structure, oscillator output
Beam matches rear stage laser amplifier rod, just can be effective.
By below in conjunction with detailed description of the accompanying drawing to most preferred embodiment of the present utility model, it is of the present utility model these with
And other advantages will be apparent from.
Brief description of the drawings
The utility model can by reference to being better understood below in association with the description given by accompanying drawing, wherein
Same or analogous reference has been used in all of the figs to represent same or similar part.The accompanying drawing is together with
The detailed description in face includes in this manual and forms the part of this specification together, and for further illustrating
Bright preferred embodiment of the present utility model and explanation principle and advantage of the present utility model.In the accompanying drawings：
Fig. 1 is the structural representation for an example for showing hundred picosecond lasers beauty instrument of the present utility model；
Fig. 2 is the structural representation for another example for showing hundred picosecond lasers beauty instrument of the present utility model；
Fig. 3 and Fig. 4 is the structural representation for other two examples for showing hundred picosecond lasers beauty instrument of the present utility model；
Fig. 5 is the schematic diagram for showing plano-concave lens and the second convex lens in hundred picosecond laser beauty instruments shown in Fig. 2.
It will be appreciated by those skilled in the art that element in accompanying drawing is just for the sake of showing for the sake of simple and clear,
And be not necessarily drawn to scale.For example, the size of some elements may be exaggerated relative to other elements in accompanying drawing, with
Just it is favorably improved the understanding to the utility model embodiment.
Embodiment
One exemplary embodiment of the present utility model is described hereinafter in connection with accompanying drawing.Rise for clarity and conciseness
See, do not describe all features of actual embodiment in the description.It should be understood, however, that developing any this reality
It must be made during embodiment much specific to the decision of embodiment, to realize the objectives of developer, example
Such as, those restrictive conditions related to system and business are met, and these restrictive conditions may be with embodiment not
Change together.In addition, it will also be appreciated that although development is likely to be extremely complex and time-consuming, to having benefited from
For those skilled in the art of present disclosure, this development is only routine task.
Herein, it is also necessary to which explanation is a bit, in order to avoid having obscured the utility model because of unnecessary details, attached
It illustrate only and according to the closely related apparatus structure of scheme of the present utility model and/or processing step, and eliminate in figure
The little other details with the utility model relation.
Embodiment of the present utility model provides a kind of hundred picosecond laser beauty instruments, and hundred picosecond laser beauty instruments include first
Laser bar, xenon lamp, second laser rod, housing, adjusting Q crystal, outgoing mirror, aperture, the first polarizer, Effect of Back-Cavity Mirror, optical transport
Unit, the second polarizer, the first convex lens, the 3rd total reflective mirror, the 4th total reflective mirror, quarter wave plate, SBS ponds, the 5th total reflective mirror,
Six total reflective mirrors, the 7th total reflective mirror, laser amplifier, nonlinear crystal and light-conducting arm；Outgoing mirror is partially reflecting mirror；First laser
Rod, xenon lamp and second laser rod are fixed in housing, and first laser rod, xenon lamp and second laser rod be arranged in parallel；Along
The optical transmission direction of one laser bar, aperture, the first polarizer and Effect of Back-Cavity Mirror are sequentially provided with the side of first laser rod, and
Adjusting Q crystal and outgoing mirror are sequentially provided with the opposite side of first laser rod so that laser vibrates between outgoing mirror and Effect of Back-Cavity Mirror
And exported by outgoing mirror, and make successively via the transmission direction after optical transmission unit to change from the p-polarization light of outgoing mirror outgoing
After 180 degree, again through one end that second laser rod is incident to after the second polarizer, and it is emitted from the other end of second laser rod；
The first convex lens, the 3rd total reflective mirror, the 4th total reflective mirror, quarter wave plate and SBS are sequentially provided with along the outgoing light direction of second laser rod
Pond so that the p-polarization light being emitted from the other end of second laser rod is complete via the first convex lens, the 3rd total reflective mirror and the 4th successively
Quarter wave plate is incident to after anti-mirror, and is focused to after being converted to circularly polarized light by quarter wave plate in SBS ponds so that be anti-from SBS ponds
To the circularly polarized light of output s polarised lights are converted to via quarter wave plate and successively via the 4th total reflective mirror, the 3rd total reflective mirror, first
The second polarizer is incident to after convex lens and second laser rod, and is reflected by the second polarizer；Wherein, reversely exported from SBS ponds
Circularly polarized light be pulsewidth for the stokes light in the range of 100ps-800ps；From the biography of the s polarised lights of the second polarizer reflection
The 5th total reflective mirror, the 6th total reflective mirror, the 7th total reflective mirror, laser amplifier and nonlinear crystal are sequentially provided with defeated direction, so that
Put from the s polarised lights of the second polarizer reflection via the 5th total reflective mirror, the 6th total reflective mirror and the 7th total reflective mirror by laser amplifier
Greatly, and the s polarised lights after amplification are caused by being inputted after nonlinear crystal to the laser input of light-conducting arm, with from light-conducting arm
Laser output exports.
Fig. 1 gives the structure chart of an example of hundred picosecond lasers beauty instrument of the present utility model.
As shown in figure 1, in this example, hundred picosecond laser beauty instruments, including first laser rod 1, xenon lamp 2, second laser
It is rod 3, housing 4, adjusting Q crystal 5, outgoing mirror 6, aperture 7, the first polarizer 8, Effect of Back-Cavity Mirror 9, optical transmission unit TR, second inclined
Shake piece 12, the first convex lens 13, the 3rd total reflective mirror 14, the 4th total reflective mirror 15, quarter wave plate 16, SBS ponds 17, the 5th total reflective mirror 18,
6th total reflective mirror 19, the 7th total reflective mirror 20, laser amplifier 21, nonlinear crystal 22 and light-conducting arm 23.Wherein, first laser rod
1 is, for example, 3mm × 100mm Nd:YAG crystal；Second laser rod 3 is, for example, 8mm × 120mm Nd:YAG crystal；Adjusting Q crystal
5 be, for example, 6mm × 10mm Nd:YAG crystal；The size of first convex lens 13 is, for example, that 25.4mm × 600mm, focal length are, for example,
500-1500mm；The size in SBS ponds 17 is, for example, 25.4mm × 600mm, wherein equipped with weight fluorocarbon liquid medium；Laser amplifier
21 size is, for example, 12mm × 130mm；Nonlinear crystal 22 is for example with two frequency-doubling crystals that size is 12mm × 12mm.
Wherein, outgoing mirror 6 is partially reflecting mirror.For example, outgoing mirror 6 is 50% reflection, 50% transmission.
First laser rod 1, xenon lamp 2 and second laser rod 3 are fixed in housing 4, and first laser rod 1, xenon lamp 2 and
Dual-laser rod 3 be arranged in parallel.
In the prior art, typically a laser bar and an xenon lamp are arranged in a housing, or had multiple
During laser bar, and by each laser bar, that corresponding xenon lamp is located in same housing with it, on the one hand needs multiple xenons
Lamp, and on the other hand need multiple housings.The utility model reaches compact-sized purpose to provide multistage amplification,
Provide the scheme that an xenon lamp and two laser bars are set in a housing.In this scenario, xenon lamp and two laser bars
Be arranged in parallel, and xenon lamp is positioned at centre, as shown in figure 1, so, when xenon lamp work, its just can and meanwhile two laser bars of pumping
Laser is produced, and secondary amplification can be realized using a laser bar (second laser rod 3).
Along the optical transmission direction of first laser rod 1, it is inclined that aperture 7, first is sequentially provided with the side of first laser rod 1
Shake piece 8 and Effect of Back-Cavity Mirror 9, and adjusting Q crystal 5 and outgoing mirror 6 are sequentially provided with the opposite side of first laser rod 1.
So, after being powered up, xenon lamp 2 sends pulsed light, excites first laser rod 1 to produce laser, it is back and forth defeated
Vibrate between appearance 6 and Effect of Back-Cavity Mirror 9 and exported by outgoing mirror 6.Wherein, Effect of Back-Cavity Mirror 9 is total reflective mirror.
That is, Effect of Back-Cavity Mirror 9, the first polarizer 8, aperture 7, first laser rod 1, adjusting Q crystal 5 and outgoing mirror 6
Nanosecond laser is together constituted successively and produces light source, and its caused spot diameter is 2mm, and polarization state is p-polarization light.
From outgoing mirror 6 be emitted p-polarization light successively via after optical transmission unit TR transmission direction change 180 degree after, again
Through one end (i.e. the A ends of second laser rod 3) that second laser rod 3 is incident to after the second polarizer 12 (transmission), and from second
The other end (i.e. the B of the second laser rod 3) outgoing of laser bar 3.
Thus, the amplification first of laser is realized by second laser rod 3.For example, the laser energy exported from outgoing mirror 6
For 10mJ, pulsewidth 8ns, energy is changed into 100mJ after second laser rod 3 (pulsewidth is still 8ns).
The first convex lens 13, the 3rd total reflective mirror 14, the 4th total reflective mirror are sequentially provided with along the outgoing light direction of second laser rod 3
15th, quarter wave plate 16 and SBS ponds 17 so that p-polarization light (such as energy 100mJ, the arteries and veins being emitted from the other end of second laser rod 3
Wide 8ns) successively via being incident to 1/4 after the first convex lens 13, the 3rd total reflective mirror 14 (reflection) and the 4th total reflective mirror 15 (reflection)
Wave plate 16, and focused to after being converted to circularly polarized light by quarter wave plate 16 in SBS ponds 17 so that reversely exported from SBS ponds 17
Circularly polarized light is converted to s polarised lights and successively via the 4th total reflective mirror 15 (reflection), the 3rd total reflective mirror 14 via quarter wave plate 16
The second polarizer 12 is incident to after (reflection), the first convex lens 13 and second laser rod 3, and is reflected by the second polarizer 12；Its
In, the circularly polarized light that is reversely exported from SBS ponds 17 is pulsewidth for the stokes light in the range of 100ps-800ps.
So, hundred picosecond lasers are obtained by SBS ponds 17, then makes hundred picosecond laser backtrackings of acquisition by second
Laser bar 3, realize the secondary amplification of laser.For example, after hundred picosecond lasers enter second laser rod 3, exported again from A ends from B ends,
Energy adjustable is 300mJ~500mJ.Moreover, amplification first and secondary amplification are realized by second laser rod 3, and second
Laser bar 3 and first laser rod 1 are fixed in a device (i.e. housing 4), it is achieved thereby that repeatedly being amplified to laser
In the case of cause whole instrument it is compact-sized, take up space it is smaller.
The 5th total reflective mirror the 18, the 6th is sequentially provided with from the transmission direction of the s polarised lights of the second polarizer 12 reflection to be all-trans
Mirror 19, the 7th total reflective mirror 20, laser amplifier 21 and nonlinear crystal 22, so that the s polarised lights from the reflection of the second polarizer 12
Via after the 5th total reflective mirror 18 (reflection), the 6th total reflective mirror 19 (reflection) and the 7th total reflective mirror 20 (reflection) by laser amplifier 21
Amplification, and cause the s polarised lights after amplification by being inputted after nonlinear crystal 22 to the laser input of light-conducting arm 23, with from leading
The laser output output of light arm 23.Nonlinear crystal 22 can be the green of 1064nm or so infrared laser frequency multiplication to 532nm
Light, wherein, the multiplication factor of laser amplifier 21 for example (1,3] between.Wherein, light-conducting arm 23 can have and existing laser
The similar structure of the light-conducting arm of beauty instrument, I will not elaborate.
So, the amplification three times of laser is realized by laser amplifier 21.For example, 300mJ~500mJ hundred psecs swash
Light can be amplified to 800mJ~1000mJ after laser amplifier 21.In one example, swash from what laser amplifier 21 exported
Light energy can be 1000mJ.So, said structure of the present utility model is by the way that second laser rod 3 and first laser rod 1 are fixed
In a device (i.e. housing 4), by multiple speculums by the more compact of light path design, and pass through second laser rod 3
Realization is amplified twice, is combined by features above so that the light source part of whole instrument closely, takes up space smaller；Herein
On the basis of, with reference to laser amplifier 21, in the case where make it that whole apparatus structure is very compact, realization is amplified three times, is obtained
The high-energy output of hundred picosecond lasers.
Fig. 2 shows the structure chart of another example of hundred picosecond lasers beauty instrument of the present utility model.
As shown in Fig. 2 unlike structure shown in Fig. 1, outgoing mirror 6 is plano-concave lens 6-1, and in plano-concave lens 6-1
The second convex lens 6-2 is additionally provided between optical transmission unit TR.
Wherein, plano-concave lens 6-1 plane scribbles part reflective semitransparent film, and plano-concave lens 6-1 concave surface scribbles anti-reflection film, such as schemes
Shown in 5, so that laser vibrates and defeated by plano-concave lens 6-1 plane between plano-concave lens 6-1 plane and Effect of Back-Cavity Mirror 9
Go out, and make the p-polarization light from plano-concave lens 6-1 planar exit by plano-concave lens 6-1 concave surface diverging and the second convex lens
6-2 turns into directional light after assembling, and realization expands.
Expanded to realize, conventional art generally requires to increase the combination of a concavees lens and convex lens, that is to say, that quite
In 2 lens elements of increase between outgoing mirror 6 and optical transmission unit TR, and lens element must consider its focal length to design
Light path so that whole light path is elongated, and whole apparatus structure becomes big.In contrast, as shown in Figure 2 and Figure 5 of the present utility model
Hundred picosecond laser beauty instruments then only need outgoing mirror 6 replacing with plano-concave lens 6-1, only need to be further added by a convex lens, and one
Aspect element compared with the prior art for tail off, another aspect light path shortens, so that the utility model is compared with the prior art
More compact structure.
The principle and work(also realized in Fig. 2 with Fig. 1 identical light path parts, its principle and function with structure shown in Fig. 1
Can be similar, repeat no more here.
In addition, according to an implementation (as depicted in figs. 1 and 2), optical transmission unit TR includes the He of the first total reflective mirror 10
Second total reflective mirror 11, wherein, reflected from the p-polarization light that outgoing mirror 6 is emitted through the reflection of the first total reflective mirror 10 and the second total reflective mirror 11
The transmission direction of the relative p-polarization light being emitted from outgoing mirror 6 of optical transmission direction afterwards changes 180 degree, reenters and is incident upon the second polarization
Piece 12.
It should be noted that, although show that optical transmission unit TR includes the He of the first total reflective mirror 10 in Fig. 1 and Fig. 2 figure
The example of second total reflective mirror 11, but optical transmission unit TR structure is not limited to this, such as can also be as shown in Figure 3 or Figure 4
Right angle prism.As shown in Figure 3 or Figure 4, right-angle prismatic can also be included according to another implementation, optical transmission unit TR
Mirror, wherein, the p-polarization light vertical incidence being emitted from outgoing mirror 6 is to the base of the right angle prism, successively by the right angle prism
The reflection of two right-angle sides after, after the outgoing of the base vertical of the right angle prism, reenter and be incident upon the second polarizer 12.
Although describing the utility model according to the embodiment of limited quantity, above description, this technology are benefited from
It is in field it is clear for the skilled person that in the scope of the utility model thus described, it can be envisaged that other embodiments.In addition,
It should be noted that the language used in this specification primarily to readable and teaching purpose and select, rather than in order to
Explain or limit theme of the present utility model and select.Therefore, without departing from the scope and spirit of the appended claims
In the case of, many modifications and changes will be apparent from for those skilled in the art.For this
The scope of utility model, the disclosure done to the utility model are illustrative and not restrictive, the scope of the utility model
It is defined by the appended claims.
Claims (5)
1. hundred picosecond laser beauty instruments, it is characterised in that the hundred picosecond lasers beauty instrument includes first laser rod (1), xenon lamp
(2), second laser rod (3), housing (4), adjusting Q crystal (5), outgoing mirror (6), aperture (7), the first polarizer (8), back cavity
Mirror (9), optical transmission unit (TR), the second polarizer (12), the first convex lens (13), the 3rd total reflective mirror (14), the 4th total reflective mirror
(15), quarter wave plate (16), SBS ponds (17), the 5th total reflective mirror (18), the 6th total reflective mirror (19), the 7th total reflective mirror (20), laser
Amplifier (21), nonlinear crystal (22) and light-conducting arm (23)；
The outgoing mirror (6) is partially reflecting mirror；
The first laser rod (1), the xenon lamp (2) and the second laser rod (3) are fixed in the housing (4), and
The first laser rod (1), the xenon lamp (2) and the second laser rod (3) be arranged in parallel；
Along the optical transmission direction of the first laser rod (1), the aperture is sequentially provided with the side of the first laser rod (1)
Diaphragm (7), first polarizer (8) and the Effect of Back-Cavity Mirror (9), and set successively in the opposite side of the first laser rod (1)
There are the adjusting Q crystal (5) and the outgoing mirror (6) so that laser shakes between the outgoing mirror (6) and the Effect of Back-Cavity Mirror (9)
Swing and exported by the outgoing mirror (6), and make the p-polarization light from the outgoing mirror (6) outgoing successively via the optical transport
Transmission direction after unit (TR) change 180 degree after, pass through second polarizer (12) again after be incident to the second laser
One end of rod (3), and be emitted from the other end of the second laser rod (3)；
First convex lens (13), the 3rd total reflective mirror are sequentially provided with along the outgoing light direction of the second laser rod (3)
(14), the 4th total reflective mirror (15), the quarter wave plate (16) and SBS ponds (17) so that from the second laser rod (3)
The p-polarization light of other end outgoing is successively via first convex lens (13), the 3rd total reflective mirror (14) and described the
The quarter wave plate (16) is incident to after four total reflective mirrors (15), and is focused on after being converted to circularly polarized light by the quarter wave plate (16)
In to the SBS ponds (17) so that turn from the circularly polarized light that the SBS ponds (17) reversely export via the quarter wave plate (16)
It is changed to s polarised lights and successively via the 4th total reflective mirror (15), the 3rd total reflective mirror (14), first convex lens (13)
Be incident to second polarizer (12) after the second laser rod (3), and reflected by second polarizer (12)；Its
In, the circularly polarized light that is reversely exported from the SBS ponds (17) is pulsewidth for the stokes light in the range of 100ps-800ps；
From second polarizer (12) reflection s polarised lights transmission direction on be sequentially provided with the 5th total reflective mirror (18),
6th total reflective mirror (19), the 7th total reflective mirror (20), the laser amplifier (21) and nonlinear crystal (22), so that
From second polarizer (12) reflection s polarised lights via the 5th total reflective mirror (18), the 6th total reflective mirror (19) and
7th total reflective mirror (20) is amplified by the laser amplifier (21), and causes the s polarised lights after amplification to pass through non-linear crystalline substance
Body (22) inputs to the laser input of the light-conducting arm (23) afterwards, to be exported from the laser output of the light-conducting arm (23).
2. hundred picosecond lasers beauty instrument according to claim 1, it is characterised in that the outgoing mirror (6) be 50% reflection,
50% diaphotoscope.
3. hundred picosecond lasers beauty instrument according to claim 1, it is characterised in that it is saturating that the outgoing mirror (6) includes plano-concave
Mirror (6-1), and the second convex lens (6-2) are provided between the plano-concave lens (6-1) and the optical transmission unit (TR)；
Wherein, the plane of the plano-concave lens (6-1) scribbles part reflective semitransparent film, and the concave surface of the plano-concave lens (6-1) scribbles increasing
Permeable membrane, so that laser vibrates and saturating by the plano-concave between the plane and the Effect of Back-Cavity Mirror (9) of the plano-concave lens (6-1)
The plane output of mirror (6-1), and make to pass through the plano-concave lens from the p-polarization light of the planar exit of the plano-concave lens (6-1)
The concave surface diverging of (6-1) and second convex lens (6-2) turn into directional light after assembling, and realization expands.
4. hundred picosecond lasers beauty instrument according to claim 1, it is characterised in that the optical transmission unit (TR) includes the
One total reflective mirror (10) and the second total reflective mirror (11), wherein, it is all-trans from the p-polarization light of the outgoing mirror (6) outgoing through described first
Mirror (10) reflects inclined with the relative p from the outgoing mirror (6) outgoing of the optical transmission direction after second total reflective mirror (11) reflection
Shake light transmission direction change 180 degree, reenter and be incident upon second polarizer (12).
5. hundred picosecond lasers beauty instrument according to claim 1, it is characterised in that the optical transmission unit (TR) includes straight
Angle prism, wherein, from the p-polarization light vertical incidence of the outgoing mirror (6) outgoing to the base of the right angle prism, successively by
After two right-angle sides reflection of the right angle prism, after the outgoing of the base vertical of the right angle prism, reenter and be incident upon described the
Two polarizers (12).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069400A (en) * | 2017-06-02 | 2017-08-18 | 哈尔滨镭致科技有限公司 | Hundred picosecond laser beauty instruments |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107069400A (en) * | 2017-06-02 | 2017-08-18 | 哈尔滨镭致科技有限公司 | Hundred picosecond laser beauty instruments |
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