CN205901059U - Second harmonic generation crystal fixture with low additional deformation - Google Patents
Second harmonic generation crystal fixture with low additional deformation Download PDFInfo
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- CN205901059U CN205901059U CN201620901065.8U CN201620901065U CN205901059U CN 205901059 U CN205901059 U CN 205901059U CN 201620901065 U CN201620901065 U CN 201620901065U CN 205901059 U CN205901059 U CN 205901059U
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- frequency
- doubling crystal
- additional deformation
- supporting mechanism
- crystal
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Abstract
The utility model discloses a second harmonic generation crystal fixture with low additional deformation, including mutually supporting and being frame construction's base and pressing the frame, the base is provided with three supporting mechanism at three inboard edges that it borders on each other, press the frame to be provided with fixed establishment in the one side towards the second harmonic generation crystal, wherein, respectively supporting mechanism, fixed establishment are provided with the first arc portion that corresponds, second arc portion respectively with the one end of second harmonic generation crystal contact to constitute 3 restraint centre grippings that correspond on the space of second harmonic generation crystal both sides. The utility model provides a second harmonic generation crystal fixture with low additional deformation has overcome a present second harmonic generation crystal centre gripping additional stress and additional shape of face control difficult problem, and its area of contact through reducing the centre gripping obligatory point becomes the contact surface restraint and into the some restraint, reduces the additional deformation that overconstraint brought, reduces additional deformation and additional stress.
Description
Technical field
The present invention relates to one kind is in a kind of frequency-doubling crystal clamping device.It is more particularly related to a kind of be suitable for using
In the case of big radius-thickness ratio frequency-doubling crystal in high-energy short-pulse laser aid, there is the frequency-doubling crystal clamping machine of low additional deformation
Structure and installation method.
Background technology
With the fast development of laser technology, kdp crystal is widely applied, in high power solid-state laser device,
Larger flakiness ratio leads to crystal face shape can occur under gravity substantially to distort, so that becoming occurs in crystals crystallographic axis
Change, Wave-front phase mismatch and greatly reduce the frequency conversion efficiency of high power laser light.Multiple fixations are successively invented in the world
The clamping scheme of heavy caliber slim kdp crystal, but finally adopted mainly have following three kinds:
First, press strip is fixed, in kdp crystal side to light one to by 4 bases to side to light for the rectangular support metal frame
Support protection, crystal shady face one to, by 4 pieces of elastic modelling quantity be 1.4x105The elastic layering of pa uniformly applies line and carries
Lotus is to the surface of crystal.Press strip fixed form can suppress the impact to crystal face shape for the gravity to a certain extent, but control line
It is more difficult that uniform load is distributed in plane of crystal.In order to preferably suppress the impact to crystal face shape for the gravity, model center line carries
The size value of lotus is 0.2n mm-1.
Second, viscose glue is fixed, by two right-angle side silica gel of crystal by kdp crystal and rectangular support metal frame side
Paste, parallel to its e axle, the Young's moduluss of silica gel are 1mpa to the viscose glue right-angle side of frequency-doubling crystal, and Poisson's ratio is 0.4, density
1100kg/m3, unilateral silica gel thickness is 5mm.Viscose glue fixing force one formula can reduce a frequency-doubling crystal to greatest extent along optical axis
Deformation, but its shortcoming is the damage to silica gel in order to avoid horizontal Raman scattering effect, and frequency crystal is along the deformation of optical axis
Larger.
Third, periphery clamps entirely, crystal side to light is similar with press strip fixed form, will meet light by rectangular support metal frame
4 bases in face support protection；Meanwhile, each self-align in 4 sides of rectangular support metal frame 4 equidistantly symmetrical screws,
By glue nail, point load is acted on 4 sides of kdp crystal, realize the support to crystal.Peripheral method of clamping can not entirely
The suppression impact to crystal face shape for the gravity, the principle of its applying power is under conditions of can fastening crystal, applies as little as possible
Chucking power.In order to fasten crystal in model, the point load that each glue nail applies to crystal side is 15n.Peripheral clamping side entirely
The advantage of formula is can accurately apply point load to crystal side by professional tool, and its shortcoming is point load to crystal side
The effect in face can lead to the regional area of crystal edge deformation by a relatively large margin, thus causing frequency doubled light marginal portion light intensity
The heterogeneity of distribution.
And the clamping difficult point of frequency-doubling crystal is more crisp in crystalline material in prior art, the deformation of crystal and nip stress simultaneously
Impact will be produced on the conversion efficiency of crystal.Find in actual use, current method of clamping is want to contact by face simultaneously
A difficult problem will be concentrated, and reduce the clamping impact on frequency-doubling crystal by improving the surface figure accuracy of gripper frame contact surface.And it is real
Find in the application of border, because the machined surface shape of crystal is in nm magnitude, crystal frame is extremely difficult to this machining accuracy, and anaplasia at any time
Change, this gripper frame can produce deformation, so that the contact of preferable face becomes point heterogeneous contact, the face shape of frequency-doubling crystal is difficult to
Ensure, be on the other hand to ensure that frequency-doubling crystal is stable at present, employ overconstrained design, this way of restraint also brings crystal
Additional deformation.
Content of the invention
It is an object of the invention to solving at least the above and/or defect, and provide at least will be described later excellent
Point.
It is a still further object of the present invention to provide a kind of frequency-doubling crystal clamping device with low additional deformation, overcome mesh
Front frequency-doubling crystal clamping additional stress and an additional Surface contral difficult problem, it passes through to reduce the contact area of clamping obligatory point, and change connects
Contacting surface is constrained to a constraint, reduces the additional deformation that Planar Mechanisms bring, and reduces additional deformation and additional stress.
A further object of the invention is the method by manufacturing the frequency-doubling crystal clamping device with low additional deformation, with
Make it manufacture the clamping device obtaining, contact surface constraints can be become into point constraint, reduce the additional deformation that Planar Mechanisms bring, reduce folder
The stress held and then the stability improving crystal transition efficiency.
In order to realize according to object of the present invention and further advantage, there is provided a kind of frequency multiplication with low additional deformation
Crystal clamping device, including cooperating and in the base of frame structure with press box, is accommodated times with limiting one after the two is compound
The groove of frequency crystal,
It is provided with three inner side edges that described base adjoins each other at it with three that frequency-doubling crystal is supported
Support mechanism, described press box is being provided with, towards the side of frequency-doubling crystal, the fixed mechanism cooperating with each supporting mechanism；
Wherein, one end that each described supporting mechanism, fixed mechanism are contacted with frequency-doubling crystal is respectively arranged with corresponding first
Curved portions, the second curved portions, with the corresponding 3 points of constraint clampings of the spatially composition in frequency-doubling crystal both sides.
Preferably, wherein, described three supporting mechanisms include:
It is arranged on the first support member on two inner side edges in mutually corresponding mode, and be arranged on another inner side edge
The second support member；
Wherein, the distance away from the second support member place inner side edge for described first support member, is arranged to the first support member institute
In inner side edge height 2/3；
Described second support member is arranged to the center position positioned at its place inner side edge.
Preferably, wherein, the base that each described supporting mechanism, fixed mechanism are all matched therewith, press box are in removable
The mode unloaded is configured.
Preferably, wherein, described base, press box are all provided with the position matched with each supporting mechanism, fixed mechanism
It is equipped with corresponding screwed hole；
Wherein, each described supporting mechanism, fixed mechanism all include first fixed part corresponding with each screwed hole, second solid
Determine portion, and
The maximum gauge of described first fixed part is less than the maximum gauge of the first curved portions, the maximum of described second fixed part
Maximum gauge with diameter greater than the second curved portions.
Preferably, wherein, described base is matched with each supporting mechanism being provided with towards the side of frequency-doubling crystal
Three boss, so its frequency-doubling crystal of being pointed between supporting mechanism and fixed mechanism on each side carry out cross spacing and
Longitudinal bracing；
The draw-in groove being matched with each boss is provided with described press box.
Preferably, wherein, described base and press box are removably configured, and described base is equal with press box
Made using metal material.
Preferably, wherein, described first curved portions, the second curved portions are arranged to hemispherical, each described supporting mechanism,
Fixed mechanism is all made using polytetrafluoro alkene.
The present invention at least includes following beneficial effect: first, the present invention is corresponding by arranging in the both sides of frequency-doubling crystal
Supported at three point mechanism, and then the side to light of crystal is not all contacted with base, press box with exiting surface, the clamping to crystal adopts
3 points of the way of restraint, to overcome current frequency-doubling crystal clamping additional stress and an additional Surface contral difficult problem, become contact surface constraints into
Point constraint, by reducing the contact area of clamping obligatory point, reduces the additional deformation that Planar Mechanisms bring, to realize reducing additional change
Shape and the effect of additional stress, have properties of product stability by force, the effect that structure is simply easily achieved.
Second, the present invention pass through to by optimize each supporting mechanism on contact point position, and then reduce additional deformation and
Additional stress, and obligatory point thereon adopts hemisphere mechanism, change face is constrained to a constraint, and constraint mechanism material is softer poly- four
Fluorothene, by optimizing obligatory point arrangement, and by changing the way of restraint, reduces the additional facet shape that Planar Mechanisms bring, simultaneously brilliant
The external frame of body clamping adopts metal frame to ensure integral rigidity, and frequency-doubling crystal carries out horizontal stroke by three boss on picture frame base
To spacing and longitudinal bracing so as to have higher structural stability.
Third, the present invention is by providing a kind of method that manufacture has the frequency-doubling crystal clamping device of low additional deformation, with
Make it manufacture the clamping device obtaining, contact surface constraints can be become into point constraint, reduce the additional deformation that Planar Mechanisms bring, reduce folder
The stress held and then the stability improving crystal transition efficiency.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will be by this
Invention research and practice and be understood by the person skilled in the art.
Brief description
Fig. 1 is that the detonation configuration of the frequency-doubling crystal clamping device having low additional deformation in one embodiment of the present of invention shows
It is intended to；
Fig. 2 is the structural representation of base in an alternative embodiment of the invention；
Fig. 3 is the structural representation after supporting mechanism amplification in an alternative embodiment of the invention；
Fig. 4 is the structural representation after fixed mechanism amplification in an alternative embodiment of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention/invention is described in further detail, to make those skilled in the art's reference say
Bright book word can be implemented according to this.
It should be appreciated that used herein such as " have ", "comprising" and " inclusion " term do not allot one or many
The presence of individual other element or a combination thereof or interpolation.
What Fig. 1-4 showed a kind of frequency-doubling crystal clamping device with low additional deformation according to the present invention realizes shape
Formula, including cooperating and in the base 1 of frame structure with press box 2, to limit a receiving frequency-doubling crystal after the two is compound
Groove, also includes:
It is provided with three inner side edges that described base adjoins each other at it with three that frequency-doubling crystal 3 is supported
Support mechanism 10, described press box being provided with, towards the side of frequency-doubling crystal, the fixed mechanism 20 cooperating with each supporting mechanism,
It passes through to arrange corresponding supported at three point mechanism in the both sides of frequency-doubling crystal, and then makes the side to light of crystal and exiting surface all not
Contact with base, press box, 3 points of the way of restraint adopted to the clamping of crystal, with overcome current frequency-doubling crystal clamping additional stress and
An additional Surface contral difficult problem, becomes contact surface constraints into point constraint；
Wherein, one end that each described supporting mechanism, fixed mechanism are contacted with frequency-doubling crystal is respectively arranged with corresponding first
Curved portions 11, the second curved portions 21, it passes through the first curved portions, and the second curved portions optimize the obligatory point on each supporting mechanism, fall
The additional facet shape that low Planar Mechanisms bring, with the corresponding 3 points of constraint clampings of the spatially composition in frequency-doubling crystal both sides.Using this
The scheme of kind passes through to reduce the contact area of clamping obligatory point, and optimizes the obligatory point on each supporting mechanism, reduction Planar Mechanisms band
The additional deformation coming, to realize reducing the effect of additional deformation and additional stress, has properties of product stability by force, structure is simple
The benefit being easily achieved.And, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.Implementing
During the present invention, suitable replacement and/or modification can be carried out according to user demand.
As shown in Fig. 2 in another kind of embodiment, described three supporting mechanisms include:
It is arranged on the first support member 12 on two inner side edges in mutually corresponding mode, and be arranged on another inner side edge
On the second support member 13；
Wherein, the distance away from the second support member place inner side edge for described first support member, is arranged to the first support member institute
In inner side edge height 2/3；
Described second support member is arranged to the center position positioned at its place inner side edge.Passed through excellent using this scheme
Change the position of contact point on each supporting mechanism, and then reduce additional deformation and additional stress, increase the stability of its support, have
Can good, the workable benefit of implementation result.And, this mode is a kind of explanation of preferred embodiments, but not
It is confined to this.When implementing the present invention, suitable replacement and/or modification can be carried out according to user demand.
In another kind of embodiment, base that each described supporting mechanism, fixed mechanism are all matched therewith, press box are in can
The mode of dismounting is configured.Using this scheme be beneficial to its processing and the later stage maintenance process, have can implementation result good,
The strong benefit of stability.And, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.Implementing
During the present invention, suitable replacement and/or modification can be carried out according to user demand.
As Figure 1-4, in another kind of embodiment, described base, press box are being matched with each supporting mechanism, fixed mechanism
It is provided with corresponding screwed hole 14,22 on the position closed；
Wherein, each described supporting mechanism, fixed mechanism all include first fixed part 16, second corresponding with each screwed hole
Fixed part 24, and
The maximum gauge of described first fixed part is less than the maximum gauge of the first curved portions, the maximum of described second fixed part
Maximum gauge with diameter greater than the second curved portions.Using this scheme and then so that its part is all removably set
Put, and then make its later maintenance advantageously, decrease the control of cost, beneficial to the benefit implemented and install.And,
This mode is a kind of explanation of preferred embodiments, but is not limited thereto.When implementing the present invention, can be according to user need
Ask and carry out suitable replacement and/or modification.
As shown in Fig. 2 in another kind of embodiment, described base is being provided with and each support towards the side of frequency-doubling crystal
Three boss 15 that mechanism matches, and then it is pointed to the frequency-doubling crystal between supporting mechanism and fixed mechanism on each side
Carry out cross spacing and longitudinal bracing；
The draw-in groove 23 being matched with each boss is provided with described press box.Setting of three boss is passed through using this scheme
Put, to limit the position laterally and vertically of crystal, and crystal is played with vertical direction supporting role, having can implementation result
Good, the strong benefit of stability.And, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.In reality
When applying the present invention, suitable replacement and/or modification can be carried out according to user demand.
As shown in figure 1, in another kind of embodiment, described base and press box are removably configured, such as spiral shell
Follow closely 4, and described base is all made using metal material with press box.The external frame of clamping is adopted by metal frame using this scheme
To ensure integral rigidity, there is the benefit of higher product structure stability.And, this mode is that one kind is preferably real
The explanation of example, but be not limited thereto.Implement the present invention when, can according to user demand carry out suitable replacement and/or
Modification.
In another kind of embodiment, described first curved portions, the second curved portions are arranged to hemispherical, each described support machine
Structure, fixed mechanism are all made using polytetrafluoro alkene.Obligatory point on supporting mechanism is adopted by hemisphere mechanism using this scheme,
By optimizing obligatory point arrangement, change face is constrained to a constraint, by changing the way of restraint, to reduce the additional facet that Planar Mechanisms bring
Shape, and its constraint mechanism material is defined as using softer politef, reduction clamps local stress collection to frequency-doubling crystal
In so that its final products has a good stability, and then improve the benefit of crystal transition stabilised efficiency.And it is simultaneously brilliant
The external frame of body clamping adopts metal frame to ensure integral rigidity, and, this mode is a kind of explanation of preferred embodiments,
But it is not limited thereto.When implementing the present invention, suitable replacement and/or modification can be carried out according to user demand.
A kind of implementation method of the frequency-doubling crystal clamping device with low additional deformation is manufactured in such scheme, comprising:
First fixed part of each described supporting mechanism is screwed in corresponding screw thread in the hole on base；
Described frequency-doubling crystal is placed in the first curved portions of each supporting mechanism；
Described press box is removably combined with base, and is being had between base and press box described in compound tense
There is a preset distance；
By each described fixed mechanism, from press box, corresponding screwed hole screws in, and then makes the second curved portions and frequency-doubling crystal
Contact closely, and then spatially constitutes 3 points of constraint clampings to frequency-doubling crystal with the first curved portions cooperation.Using this side
Case manufacture has the frequency-doubling crystal clamping device of low additional deformation, and its each supporting mechanism and fixed mechanism are all using dismountable side
Formula is configured, and is beneficial to later maintenance, can carry out suitable adjustment with use time as needed simultaneously, to keep frequency multiplication brilliant
Closeness of contact between body and each obligatory point, and then make it manufacture the clamping device obtaining, contact surface constraints can become into point
Constraint, reduces the additional deformation that Planar Mechanisms bring, and while reducing the stress clamping, has product structure good stability, uses
Life-span length, the good benefit of crystal transition stabilised efficiency.And, this mode is a kind of explanation of preferred embodiments, but
It is not limited thereto.When implementing the present invention, suitable replacement and/or modification can be carried out according to user demand.
Another kind of implementation method of the frequency-doubling crystal clamping device with low additional deformation is manufactured in such scheme, comprising:
Described frequency-doubling crystal is placed in the first curved portions of each supporting mechanism, and the sidewall contact with each boss, with
Spatially cross spacing and longitudinal bracing are carried out to frequency-doubling crystal；
Described press box is removably combined with base, until the second curved portions are contacted tightly with frequency-doubling crystal
Close, and then the 3 points of constraint clampings to frequency-doubling crystal for the composition that spatially match with the first curved portions.Using this scheme system
Make the frequency-doubling crystal clamping device with low additional deformation, it is ensureing to become contact surface constraints into point constraint, reduces Planar Mechanisms band
The additional deformation coming, while reducing the stress clamping, by boss to its cross spacing and longitudinal bracing, and then ensures crystal
Will not be subjected to displacement in use, and then make it manufacture the clamping device obtaining, there is more preferable product structure stable
Property, to ensure the benefit of crystal transition stabilised efficiency.And, this mode is a kind of explanation of preferred embodiments, but
It is not limited thereto.When implementing the present invention, suitable replacement and/or modification can be carried out according to user demand.
Number of devices described herein and treatment scale are used to simplify the explanation of the present invention.Low to having of the present invention
The application of the frequency-doubling crystal clamping device of additional deformation and its manufacture method, modifications and variations are to one skilled in the art
It is obvious.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in description and embodiment
With.It can be applied to various suitable the field of the invention completely.For those skilled in the art, can be easily
Realize other modification.Therefore under the general concept being limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details with shown here as the legend with description.
Claims (7)
1. a kind of frequency-doubling crystal clamping device with low additional deformation, including cooperating and in the base of frame structure with pressure
Frame, limiting the groove of a receiving frequency-doubling crystal after the two is compound it is characterised in that:
Three support machines to be supported to frequency-doubling crystal are provided with three inner side edges that described base adjoins each other at it
Structure, described press box is being provided with, towards the side of frequency-doubling crystal, the fixed mechanism cooperating with each supporting mechanism；
Wherein, one end that each described supporting mechanism, fixed mechanism are contacted with frequency-doubling crystal is respectively arranged with corresponding first arc
Portion, the second curved portions, with the corresponding 3 points of constraint clampings of the spatially composition in frequency-doubling crystal both sides.
2. there is the frequency-doubling crystal clamping device of low additional deformation as claimed in claim 1 it is characterised in that described three are propped up
Support mechanism includes:
It is arranged on the first support member on two inner side edges in mutually corresponding mode, and be arranged on another inner side edge
Two support members；
Wherein, the distance away from the second support member place inner side edge for described first support member, is arranged in the first support member place
The 2/3 of side height；
Described second support member is arranged to the center position positioned at its place inner side edge.
3. there is the frequency-doubling crystal clamping device of low additional deformation as claimed in claim 1 it is characterised in that each described support
The base that mechanism, fixed mechanism are all matched therewith, press box are in removably to be configured.
4. there is the frequency-doubling crystal clamping device of low additional deformation as claimed in claim 1 it is characterised in that described base,
Press box is being provided with corresponding screwed hole with the position that each supporting mechanism, fixed mechanism match；
Wherein, each described supporting mechanism, fixed mechanism all include first fixed part corresponding with each screwed hole, the second fixation
Portion, and
The maximum gauge of described first fixed part is less than the maximum gauge of the first curved portions, the maximum gauge of described second fixed part
Maximum gauge more than the second curved portions.
5. there is the frequency-doubling crystal clamping device of low additional deformation as claimed in claim 1 it is characterised in that described base exists
It is provided with three boss matching with each supporting mechanism towards the side of frequency-doubling crystal, and then it is pointed on each side
Frequency-doubling crystal between supporting mechanism and fixed mechanism carries out cross spacing and longitudinal bracing；
The draw-in groove being matched with each boss is provided with described press box.
6. there is the frequency-doubling crystal clamping device of low additional deformation as claimed in claim 1 it is characterised in that described base with
Press box is removably configured, and described base is all made using metal material with press box.
7. there is the frequency-doubling crystal clamping device of low additional deformation as claimed in claim 1 it is characterised in that described first arc
Shape portion, the second curved portions are arranged to hemispherical, and each described supporting mechanism, fixed mechanism are all made using polytetrafluoro alkene.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016208776424 | 2016-08-12 | ||
| CN201620877642 | 2016-08-12 |
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| Publication Number | Publication Date |
|---|---|
| CN205901059U true CN205901059U (en) | 2017-01-18 |
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ID=57779619
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620901065.8U Active CN205901059U (en) | 2016-08-12 | 2016-08-18 | Second harmonic generation crystal fixture with low additional deformation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229798A (en) * | 2016-08-12 | 2016-12-14 | 中国工程物理研究院激光聚变研究中心 | There is frequency-doubling crystal clamping device and the installation method of low additional deformation |
-
2016
- 2016-08-18 CN CN201620901065.8U patent/CN205901059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229798A (en) * | 2016-08-12 | 2016-12-14 | 中国工程物理研究院激光聚变研究中心 | There is frequency-doubling crystal clamping device and the installation method of low additional deformation |
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