CN2428794Y - Safety terminator for multiple laser beams - Google Patents
Safety terminator for multiple laser beams Download PDFInfo
- Publication number
- CN2428794Y CN2428794Y CN 00217939 CN00217939U CN2428794Y CN 2428794 Y CN2428794 Y CN 2428794Y CN 00217939 CN00217939 CN 00217939 CN 00217939 U CN00217939 U CN 00217939U CN 2428794 Y CN2428794 Y CN 2428794Y
- Authority
- CN
- China
- Prior art keywords
- long tube
- laser beam
- reflection
- absorption body
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims abstract description 3
- 238000010521 absorption reaction Methods 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910000737 Duralumin Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 208000020564 Eye injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- -1 argon ion Chemical class 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 231100000225 lethality Toxicity 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
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- Lasers (AREA)
Abstract
A safety stopper for preventing various laser beams from hurting human body, polluting environment and causing accident by laser beams. The reflecting absorber comprises a long cylinder with the length of radiating fins on the outer side of the cylinder wall being more than or equal to 2.5 times of the inner diameter, wherein N annular cone peaks are arranged on the surface, facing the inside of the long cylinder, of the reflecting absorber arranged at the rear end of the long cylinder, and a cooling water channel with a water inlet and a water outlet at two ends is arranged in the reflecting absorber. The long cylinder is arranged at the top end of the sliding rod in the sliding seat and can be adjusted in a three-dimensional mode. It has the features of wide application in various wavelength, continuous or pulse emission, low power or medium power, even higher power laser beam.
Description
The utility model is one kind of multiple laser beam safety terminators, mainly is applicable to prevent various laser beam injury human bodies and eyes, prevents the laser beam contaminated environment, prevents the mishap that is caused by laser beam.
In recent years, laser technology develops rapidly, widespread use in every field such as industry, the energy, military affairs, medical treatment and scientific research.People are in laser beam, and laser beam has also been brought unsafe factor to people.Since laser instrument can become a kind of special " release can weapon ", have enough strong lethality, if protect badly, the lighter causes people's eye injury, brings out cataract, contaminated environment, burn clothes or skin; Weight person causes fire, explodes, causes casualty accident, even underway flight is met accident.Therefore, the protection to it is subjected to global attracting attention.
Formerly in the technology, Chinese Academy of Sciences's Shanghai ray machine inventors such as Chongwen, pass a kind of laser beam safety terminator (patent No.: ZL95244034.2) and a kind of high-power laser beam safety terminator (patent No.: ZL96244035.0) is provided.These two kinds of laser beam safety terminators all successfully are applied to play the effect of security protection on low-power and the high-power laser beam.But above-mentioned first kind of laser beam safety terminator, its reflection-absorption body is made by devitrified glass, holds for the laser beam of higher laser power and can't stand, will be damaged, burst, so can only be used in the low-power (laser beam of 10W～200W).And second kind of high-power laser beam safety terminator, (laser beam of 300W～5000W), its structure are complicated again to be applicable to higher-wattage.Use above-mentioned first kind of terminator not all right for the laser beam of mid power, and don't need to use second kind of so high-power structure safe terminator of complexity again.
The purpose of this utility model provides one kind of multiple laser beam safety terminators, texture ratio formerly technology 2 is simple, easy to use, can be suitable for the laser beam of various wavelength again, that no matter launch continuously or the pulse emission, no matter be low-power, the laser beam safety terminator that the laser beam of middle power even higher-wattage all is suitable for.
Laser beam safety terminator of the present utility model, comprise long tube 1, the front end of long tube 1 has the light hole 103 of clear aperature less than long tube 1 inside diameter D, the rear end of long tube 1 is equipped with the reflection-absorption body 2 that is fixed on long tube 1 rear end by trim ring 3, and long tube 1 is fixed on slide bar 5 tops in the slide that has lock-screw 46 of base plate 7 centers by the screw on the wall 101.As shown in Figure 1.
Said reflection-absorption body 2 is by high temperature resistant, the copper that thermal conductivity is good, perhaps duralumin, perhaps steel formation.Reflection-absorption body 2 has N annular awl peak 204, number of rings N 〉=1 at its annular awl peak 204 on the surface of long tube 1 inside.The inside of reflection-absorption body 2 has two ends to have the cooling-water duct 202 of water inlet 203 and water delivering orifice 201 respectively.
Said long tube 1 is by high temperature resistant, the aluminium that thermal conductivity is good, and perhaps copper, perhaps steel constitutes.Have multi-disc heat radiator 102 on the barrel outside of long tube 1.These heat radiator have increased the area of dissipation on long tube 1 wall greatly, can make the photo-thermal amount that absorbs on the long tube 1 by ingress of air in large area and scattering is fallen, and play the effect of air cooling.The length L of long tube 1 is very important, when having only the length L long enough when long tube 1, could make that injecting long tube 1 an interior laser beam minimally returns out length tin 1.Tube 1 the length L of will rectificating in the utility model is more than or equal to the inside diameter D of 2.5 times long tube 1, i.e. L 〉=2.5D.And the length L of the long tube 1 of the utility model can regulate, and can elongate or shorten.When the laser beam power that injects was low, the length L of long tube 1 can shorten.When the power of the laser beam that injects was higher, the length L of long tube 1 will be extended relatively.
The laser beam that penetrates from long tube 1 inner counter can be reduced like this less than the inside diameter D of long tube 1 in the aperture of the light hole 103 of long tube 1 front end.
Long tube 1 is fixed on the top of slide bar 5 by the screw on the wall 101.Slide bar 5 is in the slide 6 of base plate 7 centers, can slide up and down and do 360 ° of ground and rotate.In the time of on being transferred to needed position, can pin with the lock-screw on the slide 64.Therefore, long tube 1 can be done three-dimensional adjustment.
As above-mentioned structure shown in Figure 1, in long tube 1 is advanced in the beam of laser beam, reflection-absorption body 2 by long tube 1 rear portion is intercepted and captured, reflection-absorption body 2 absorbs a light and becomes the water cooling passageway 202 that heat is transmitted to reflection-absorption body 2 inside, heat is taken away by current, unabsorbed light, by the conical reflecting at reflection-absorption body 2 surperficial epicone peaks 204 to the inwall of long tube 1, absorb a part of light again on the inwall of long tube 1 and become heat, fall by heat radiator 102 scatterings on long tube 1 wall, remaining unabsorbed light reflexes on the inwall of long tube 1 again, absorbed a part of light by barrel again and become heat and be scattered, every reflection once, the energy of light all is reduced, return again repeatedly, luminous energy is fewer and feweri, needs only the length L long enough of long tube 1, and laser beam is past interflection in long tube 1, all be absorbed up to luminous energy and become heat energy and be scattered, then this laser beam safety terminator has just reached the purpose that stops laser beam.
Advantage of the present utility model:
The awl peak 204 that N 〉=1 annular is arranged on the surface of reflection-absorption body 2 of the present utility model, form the surface of " shape surrounded by mountains ", increased the extinction face of reflection-absorption body 2 greatly, also increased the resorbent chance between the awl peak 204, simultaneously by the conical reflecting laser beam at awl peak 204, can guarantee that reflected light falls on the inwall of long tube 1.And guarantee the reflection-absorption that laser beam can be back and forth in long tube 1.And the length L long enough of long tube 1 (L 〉=2.5D), just can guarantee in long tube 1, laser beam all to be consumed.Long tube 1 and reflection-absorption body 2 are again all by high temperature resistant, and the material that thermal conductivity is good constitutes.So laser beam safety terminator of the present utility model is not only applicable to the laser beam of various wavelength, and, no matter be to launch continuously, or the pulse emission; No matter be low-power, middle power, the laser beam of higher-wattage all is suitable for even.Its texture ratio formerly technology 2 is simple.Long tube 1 can be done three-dimensional adjustment, and is easy to use.It is a kind of laser beam security protection device of more satisfactory practicality.
Description of drawings:
Fig. 1 is the cut-open view of multiple laser beam safety terminator structure of the present utility model.
Embodiment:
Structure as shown in Figure 1
Long tube 1 is to be made of alloy aluminum high temperature resistant, that thermal conductivity is good.Length L=75mm, inside diameter D=φ 30mm.
Reflection-absorption body 2 is to be made of copper high temperature resistant, that thermal conductivity is good.The number of rings N=4 at epicone peak, surface 204, the peak height h=3mm at awl peak 204.
The wavelength that is used for 30 megawatts is the pulse laser beam of 1.06 μ m, and beam diameter is φ 8, and per second 10 times is injected a few hours continuously, not only plays the effect but also the device that stop laser beam and does not see damage.
(Nd: YAG) mode-locked laser output peak power density is 10 to be used for the neodymium-doped garnet
9W/cm
2(m. gigawatt (GW)/cm
2) more than, this laser beam is ended in the safe terminator of the present utility model, and terminator itself is intact.Make scientific and technical personnel can operate and use laser instrument relievedly safely.
Be used for helium neon laser beam, excimer laser beam, argon ion laser beam, (Nd: YAG) laser beam, nd glass laser bundle, carbon dioxide laser beam and dye laser Shu Jun have played the effect that stops laser beam to neodymium-doped yttrium-aluminum garnet.Device itself is excellent.Fully proved above-mentioned advantage of the present utility model.
Claims (4)
1. one kind of multiple laser beam safety terminators comprise:
﹠amp; #601﹠amp; The long tube of #62 (1), the front end of long tube (1) have the light hole (103) of clear aperature less than long tube (1) inside diameter D, and the rear end of long tube (1) is equipped with the reflection-absorption body (2) that is fixed on long tube (1) rear end by trim ring (3);
﹠amp; #602﹠amp; The long tube of #62 (1) is fixed on interior slide bar (5) top of the slide that has lock-screw (4) (6) of base plate (7) center by the screw on the wall (101);
It is characterized in that:
﹠amp; #603﹠amp; The said reflection-absorption body of #62 (2) has N annular awl peak (204) on the surface of long tube (1) inside, the inside of reflection-absorption body (2) has two ends to have the cooling-water duct (202) of water inlet (203) and water delivering orifice (201) respectively;
﹠amp; #604﹠amp; Have heat radiator (102) on the outside of said long (1) barrel of #62, the length L of length tube (1) is more than or equal to the inside diameter D of 2.5 times long tube (1), i.e. the length L of L 〉=2.5D, and length tin (1) can be regulated.
2. multiple laser beam safety terminator according to claim 1 is characterized in that said reflection-absorption body (2) is by high temperature resistant, and copper that thermal conductivity is good or duralumin or steel constitute.
3. multiple laser beam safety terminator according to claim 1 is characterized in that said long tube (1) is by high temperature resistant, and aluminium that thermal conductivity is good or copper or steel constitute.
4. multiple laser beam safety terminator according to claim 1 is characterized in that number of rings N 〉=1 of said reflection-absorption body (2) towards the inner lip-deep annular awl peak of long tube (1) (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217939 CN2428794Y (en) | 2000-06-08 | 2000-06-08 | Safety terminator for multiple laser beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217939 CN2428794Y (en) | 2000-06-08 | 2000-06-08 | Safety terminator for multiple laser beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2428794Y true CN2428794Y (en) | 2001-05-02 |
Family
ID=33583418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00217939 Expired - Fee Related CN2428794Y (en) | 2000-06-08 | 2000-06-08 | Safety terminator for multiple laser beams |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2428794Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398631A (en) * | 2013-07-12 | 2013-11-20 | 孔繁忠 | Laser attack resisting body |
| CN105428985A (en) * | 2015-12-23 | 2016-03-23 | 中国科学院长春光学精密机械与物理研究所 | Laser beam-expanding absorption device |
| CN111404016A (en) * | 2020-04-21 | 2020-07-10 | 罗勇 | Light splitting device for optical fiber output laser |
-
2000
- 2000-06-08 CN CN 00217939 patent/CN2428794Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398631A (en) * | 2013-07-12 | 2013-11-20 | 孔繁忠 | Laser attack resisting body |
| CN105428985A (en) * | 2015-12-23 | 2016-03-23 | 中国科学院长春光学精密机械与物理研究所 | Laser beam-expanding absorption device |
| CN111404016A (en) * | 2020-04-21 | 2020-07-10 | 罗勇 | Light splitting device for optical fiber output laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |