CN208207258U - A kind of laser aid residue beam absorption device - Google Patents
A kind of laser aid residue beam absorption device Download PDFInfo
- Publication number
- CN208207258U CN208207258U CN201820575531.7U CN201820575531U CN208207258U CN 208207258 U CN208207258 U CN 208207258U CN 201820575531 U CN201820575531 U CN 201820575531U CN 208207258 U CN208207258 U CN 208207258U
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- China
- Prior art keywords
- laser
- absorber
- absorbing surface
- absorbing
- residue
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- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model relates to a kind of laser aid residue beam absorption devices, belong to high power laser light technical field, the absorption plant includes absorber, the absorber includes the absorbing surface directly contacted with remaining laser, the absorbing surface is set as curved surface, the utility model is curving by carrying out absorbing surface, increase the incident area that absorber absorbs remaining laser, to reduce the light beam incident flux for absorbing body position, bring damage problem when improving big energy residual laser absorption, it is compact-sized, at low cost, high financial profit.
Description
Technical field
The utility model belongs to high power laser light technical field, relates in particular to a kind of laser aid residue beam absorption
Device.
Background technique
In large scale laser instrument, the stray light that is generated during laser transmission, without remaining laser for utilizing etc. can pair
Optical element in device causes certain harm, it usually needs is absorbed by absorber.Currently, common absorber
There is plate, wedge type etc., each contact surface of absorber is processed as plane.It is continuous with laser technology and its application
Development, laser aid gradually develop to high power high-energy direction, and therefore, the energy of remaining laser is also promoted therewith, and light beam exists
Absorber surface flux increases, and surface flux is once higher than damage threshold, can bring serious damage.Although clapboard can
Reduce light beam in the flux of absorber surface, and be inversely proportional with inclination angle, but inclination angle is excessive similarly to be will affect to light beam
It absorbs, therefore, by increasing the effect of tilt angle realization reduction surface flux, there are certain limitations.And traditional is put down
For the absorber of face, high-throughput bring damage is greatly reduced the service life of absorber.
Utility model content
For various deficiencies of the prior art, inventor has found in long-term practice: absorber and remaining laser is direct
The absorbing surface progress of contact is curving, is capable of increasing absorption area, incident flux is reduced, to improve big energy residual laser absorption
When bring damage problem.
To achieve the above object, the utility model provides the following technical solutions:
A kind of laser aid residue beam absorption device, including absorber, the absorber include direct with remaining laser
The absorbing surface of contact, the absorbing surface are set as curved surface.
Further, appoint and take the absorption point on the absorbing surface and arbitrarily set horizontal line, the absorption point and setting are horizontal
The spacing of line is H, and the normal direction extended line for absorbing point and the horizontal intersection point of setting are away from absorbing falling for distance between point
Number is C, and the angle for absorbing point to circle center line connecting and horizontal plane is θ, radiation flux of the residue laser at absorber
For I0, the residue laser is I absorbing the incident flux at point, then I=I0× sin θ=I0×H×C。
Further, the absorber uses the damage threshold of material for Ith, then I < Ith。
Further, the transmission direction setting of the absorbing surface face residue laser.
Further, the absorbing surface is set as continuous curve surface.
Further, the absorbing surface is set as discontinuous surfaces.
In addition, the utility model also provides a kind of application method using laser aid residue beam absorption device, including such as
Lower step:
S1: according to installation space and cost, determining the maximum height h of absorber, takes any absorption point, the absorption point with
Horizontal spacing H is set, according to radiation flux I of the remaining laser at absorber0, absorber use material damage threshold
IthAnd spacing H, determine the normal direction extended line for absorbing point and the horizontal intersection point of setting away from absorbing falling for distance between point
Number C, obtains curving absorbing surface；
S2: the transmission direction of the absorbing surface face residue laser is arranged.
The beneficial effects of the utility model are:
It is curving by carrying out absorbing surface, increase the incident area that absorber absorbs remaining laser, to reduce absorption
The light beam incident flux of body position, bring damage problem, high financial profit when improving big energy residual laser absorption.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of embodiment of the utility model；
Fig. 2 is the overall structure diagram of the utility model another embodiment.
In attached drawing: 1- absorber, 2- absorbing surface, 3- residue laser.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to the utility model
Attached drawing carries out clear, complete description to the technical solution of the utility model, and based on the embodiment in the application, this field is general
Logical technical staff other similar embodiments obtained without making creative work, all should belong to the application
The range of protection.In addition, the direction word mentioned in following embodiment, such as "upper" "lower" " left side " " right side " etc. are only with reference to attached drawing
Direction, therefore, the direction word used be for illustrative and not limiting the utility model create.
Embodiment one:
As shown in Figure 1, a kind of laser aid residue beam absorption device, including absorber 1, the absorber 1 include with
The absorbing surface 2 that remaining laser 3 directly contacts, the absorbing surface 2 are set as curved surface, and the transmission side of 2 face residue laser 3 of absorbing surface
To setting, to increase the incident area that absorber 1 absorbs remaining laser 3.In the present embodiment, the absorbing surface 2 is set as continuous song
Face.The absorber 1 can be made using arbitrary medium material, meanwhile, it can be used for absorbing the remaining laser 3 of any wavelength.
Appoint and take absorption point on the absorbing surface 2 and arbitrarily setting horizontal line, the absorption point and set it is horizontal between
Away from for H, the normal direction extended line for absorbing point and set horizontal intersection point away from absorb put between distance inverse as C,
The angle for absorbing point to circle center line connecting and horizontal plane is θ, and the area of the absorbing surface 2 is S, and the residue laser 3 is being inhaled
Radiation flux at acceptor 1 is I0, the residue laser 3 is I absorbing the incident flux at point, thenAnd I=I0×
Sin θ=I0×H×C.It can thus be appreciated that: incident flux I is directly proportional to the product of spacing H and C, and when H is fixed, C is smaller, incident
Flux is smaller, and the determination of H, needs to comprehensively consider installation space and the cost of absorber 1 etc. factor.Meanwhile it is described
Absorber 1 uses the damage threshold of material for Ith, then I < Ith, asked with improving bring damage when big energy residual laser 3 absorbs
Topic.
The application method of the laser aid residue beam absorption device, it is specific as follows: firstly, according to installation space and at
This, determines the maximum height h of absorber 1, takes any absorption point, the absorption point and the horizontal spacing H (H < h) of setting, this
In embodiment, horizontal line is set as the intersecting lens of absorber 1 bottom and horizontal plane, according to spoke of the remaining laser 3 at absorber 1
Penetrate flux I0, absorber 1 using material damage threshold IthAnd spacing H, determine the normal direction extended line for absorbing point
With the horizontal intersection point of setting away from the C reciprocal for absorbing distance between point, and then determine the position of the absorption, that is to say, that
According to the damage threshold of 1 dielectric material of absorber, remaining laser 3 absorb incident flux at point and itself and set horizontal line
Spacing, any specific location for absorbing point can be obtained, and then obtain curving absorbing surface.Then, just by the absorbing surface 2
Transmission direction setting to remaining laser 3.It is compact-sized, at low cost, easily operated, high financial profit.
Embodiment two:
The part that the present embodiment is the same as example 1 repeats no more, unlike:
As shown in Fig. 2, the absorbing surface 2 is set as discontinuous surfaces, in the present embodiment, the absorber 1 is set as curved surface wedge
Type structure, by by absorbing surface 2 inclination and it is curving, further increase the area of absorbing surface 2, to reduce incident flux, subtract
Few damage risk.
The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and
, when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it should still belong to this
In utility model covering scope.
Claims (3)
1. a kind of laser aid residue beam absorption device, which is characterized in that including absorber, the absorber includes and residue
The absorbing surface that laser directly contacts, the absorbing surface are set as curved surface, and the transmission direction setting of absorbing surface face residue laser；
Appoint and take absorption point on the absorbing surface and arbitrarily set horizontal line, the absorption point with set horizontal spacing as H,
It is described absorb point normal direction extended line and set horizontal intersection point away from absorb put between distance inverse as C, the suction
The angle of sink to circle center line connecting and horizontal plane is θ, and radiation flux of the residue laser at absorber is I0, the residue
Laser is I absorbing the incident flux at point, then I=I0× sin θ=I0× H × C, the absorber use the damage threshold of material
Value is Ith, then I < Ith。
2. a kind of laser aid residue beam absorption device according to claim 1, which is characterized in that the absorbing surface is set
For continuous curve surface.
3. a kind of laser aid residue beam absorption device according to claim 1, which is characterized in that the absorbing surface is set
For discontinuous surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820575531.7U CN208207258U (en) | 2018-04-20 | 2018-04-20 | A kind of laser aid residue beam absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820575531.7U CN208207258U (en) | 2018-04-20 | 2018-04-20 | A kind of laser aid residue beam absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208207258U true CN208207258U (en) | 2018-12-07 |
Family
ID=64524847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820575531.7U Expired - Fee Related CN208207258U (en) | 2018-04-20 | 2018-04-20 | A kind of laser aid residue beam absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208207258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345055A (en) * | 2018-04-20 | 2018-07-31 | 中国工程物理研究院激光聚变研究中心 | A kind of laser aid residue beam absorption device and its application method |
-
2018
- 2018-04-20 CN CN201820575531.7U patent/CN208207258U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345055A (en) * | 2018-04-20 | 2018-07-31 | 中国工程物理研究院激光聚变研究中心 | A kind of laser aid residue beam absorption device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20200420 |