CN104002040A - Light conversion device and production method and application thereof - Google Patents
Light conversion device and production method and application thereof Download PDFInfo
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- CN104002040A CN104002040A CN201410226554.3A CN201410226554A CN104002040A CN 104002040 A CN104002040 A CN 104002040A CN 201410226554 A CN201410226554 A CN 201410226554A CN 104002040 A CN104002040 A CN 104002040A
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- conversion device
- light conversion
- light
- optical path
- laser
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Abstract
A laser light path adjustment device comprises a light conversion device, sensors and a controller; the light conversion device comprises a transparent body and up-conversion light-emitting particles; the up-conversion light-emitting particles are scattered in the transparent body; the sensors are fixed at two ends of the light conversion device respectively or are separately fixed inside the light conversion device; the controller is electrically connected with the sensors. According to the laser light path adjustment device, when the laser light irradiates on the light conversion device, the visible light is emitted after the laser energy is absorbed through the up-conversion light-emitting particles which are arranged in the light conversion device, meanwhile the Tyndall effect is generated in the light conversion device to enable an invisible laser light path to be converted into a visible light path so as to enable the light path to be visible in the light conversion device, meanwhile the inside or the two ends of the light conversion device is or are provided with the sensors which can be used for detecting the accuracy of the laser light path accurately, and accordingly the process of adjustment of the laser light path can be accurate. In addition, the invention also provides a light conversion device and a production method and a laser light path adjustment method thereof.
Description
Technical field
The present invention relates to laser accurate cutting equipment field, particularly relate to a kind of light conversion device and preparation method thereof and application.
Background technology
Along with the extensive use of Laser Processing in industrial production, increasing high accuracy processing need to realize with laser technology.Therefore, for the also corresponding raising of installation and debugging required precision of laser instrument and laser optical path.At present, adopt optical fiber laser, CO
2the laser process equipment that laser instrument and YAG laser instrument carry out product processing has accounted for the great majority of laser process equipment.But, due to the wavelength of above laser instrument in near-infrared to middle-infrared band, naked eyes cannot observe directly laser optical path.Therefore, traditional in the light path debug phase, can adopt the supplementary observation of ruddiness instruction light source, or adopt the mode observation optical path of frequency multiplication sheet and burning " focal spot " to adjust situation.But while adopting the supplementary observation of ruddiness instruction light source, easily produce ruddiness and the phenomenon that laser not exclusively overlaps, cause laser adjusting to occur the problem of deviation.While adopting the mode observation optical path of frequency multiplication sheet and burning " focal spot " to adjust situation, invisible due to light, cannot realize the instant observation of light path conventionally, can only observe the final situation of hot spot, cannot accurately detect optical path adjusting precision, causes unavoidably adjusting deviation.
Summary of the invention
Based on this, be necessary the laser optical path adjusting device and the laser optical path control method that a kind of light conversion device and preparation method thereof are provided, use this light conversion device, this laser optical path adjusting device can accurately regulate laser optical path.
A kind of light conversion device, comprise the transparent body and be dispersed in the up-conversion luminescence particle in the described transparent body, described light conversion device for producing Tyndall effect and form visual light path inciding laser beam on described light conversion device in described light conversion device.
In an embodiment, the described transparent body is glass therein.
In an embodiment, described up-conversion luminescence particle is fluoride particles, oxide particle, halide mixture pellet or the sulfur-containing compound particle for infrared light being changed into visible ray therein.
In an embodiment, the particle diameter of described up-conversion luminescence particle is 10nm～100nm therein.
In an embodiment, the mass percent of described up-conversion luminescence particle in described light conversion device is 10%～40% therein.
A kind of preparation method of light conversion device, comprise the following steps: up-conversion luminescence uniform particles is dispersed in silane coupler, then at room temperature add ethanol, water and hydrochloric acid, at 40 DEG C～80 DEG C, place and form after block gel, slowly be warming up to 300 DEG C～700 DEG C, obtain described light conversion device after being then incubated 3h～7h.
In an embodiment, in the described operation that is slowly warming up to 300 DEG C～700 DEG C, be slowly warming up to 300 DEG C～700 DEG C to be less than the heating rate of 5 DEG C/min therein.
A kind of laser optical path adjusting device, comprise light conversion device, sensor and controller, described light conversion device comprises the transparent body and is dispersed in the up-conversion luminescence particle in the described transparent body, described light conversion device for producing Tyndall effect and form visual light path inciding laser beam on described light conversion device in described light conversion device, described sensor is fixed on the two ends of described light conversion device or described sensor interval and is fixed on the inside of described light conversion device, described sensor is arranged in a linear, described controller is connected with described sensor electrical.
In an embodiment, described light conversion device is cylinder therein, and the surface of described light conversion device is formed with the installing hole of the inside that extends to described light conversion device, and described sensor is fixed on the bottom of described installing hole.
A kind of laser optical path control method, comprises the steps:
Light conversion device is placed in to laser optical path, and described laser optical path forms visual light path in described light conversion device;
Carry out optical path adjusting according to described visual light path.
In an embodiment, the described operation of carrying out optical path adjusting according to described visual light path comprises the steps: therein
The sensor being arranged in a linear detects the concurrent power transmission signal of described visual light path to controller;
Described controller judges according to the described signal of telecommunication whether described sensor all detects described visual light path;
If so, described controller Output of laser light path accurate information;
If not, regulate described laser optical path to incide the angle of described light conversion device, until described controller is exported described laser optical path accurate information.
Above-mentioned laser optical path adjusting device, Ear Mucosa Treated by He Ne Laser Irradiation is on light conversion device time, after the energy of the up-conversion luminescence particle absorbing laser in light conversion device, launch visible ray, simultaneously, in light conversion device, produce Tyndall effect, sightless laser optical path is become to visual light path, make light path visible in light conversion device, simultaneously, the inside of light conversion device or two ends are also provided with the sensor being arranged in a linear, sensor is the precision of detection laser light path accurately, thereby can make to regulate the process of laser optical path more accurate.
Brief description of the drawings
Fig. 1 is the structural representation of the laser optical path adjusting device of an embodiment;
Fig. 2 is the flow chart of the laser optical path control method of an embodiment;
Fig. 3 adopts the laser optical path adjusting device shown in Fig. 1 to regulate the schematic diagram of laser optical path;
Fig. 4 is that laser optical path tilts by the schematic diagram of laser optical path adjusting device;
Fig. 5 is that laser optical path is accurately by the schematic diagram of laser optical path adjusting device.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.A lot of details are set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public concrete enforcement.
As shown in Figure 1, the laser optical path adjusting device 100 of an embodiment, comprises fixed mount 110, light conversion device 120, sensor 130 and controller 140.
Fixed mount 110 is arranged on laser process equipment, and by level meter, the equipment such as vertical collimator ensure levelness and the perpendicularity of installing.
Light conversion device 120 is fixed on fixed mount 110.In the present embodiment, light conversion device 120 be shaped as cylinder.Certainly in other embodiments, the shape of light conversion device 120 can be also cube.
Be appreciated that fixed mount 110 also can omit, now, light conversion device 120 be directly fixedly mounted on laser process equipment, and by level meter, the equipment such as vertical collimator ensure levelness and the perpendicularity of the installation of light conversion device 120.
Light conversion device 120 comprises the transparent body and is dispersed in the up-conversion luminescence particle in the transparent body.And up-conversion luminescence particle is uniformly distributed in glass.The transparent body can be glass.The material of glass can be SiO
2.
Up-conversion luminescence particle can be for infrared light being changed into fluoride particles, oxide particle, halide mixture pellet or the sulfur-containing compound particle of visible ray.
Concrete, fluoride particles can be the particle of following material, for example NaYF
4: Yb
3+, Er
3+, Cs
2geF
6: Re
4+, GdF
2: Er
3+, PbY
2: Er
3+or BaY
2f
8: Ho
3+deng, wherein ": " represents doping, NaYF
4: Yb
3+, Er
3+represent Yb
3+and Er
3+the NaYF of codope
4.
Halide mixture pellet can be the particle of following material, for example Cs
3m
2x
9, wherein, M is rare earth ion, X is Cl, Br or I.
Oxide particle can be the particle of following material, for example GeO
2-PbO-Nb
2o
5: Pr
3+, Y
3al
5o
12: Sm
3+or Al
2o
3: Er
3+deng, wherein ": " represents doping.
Sulfur-containing compound particle can be the particle of following material, for example Ga
2o
3-La
2s
3: Pr
3+, Yb
3+or GaS:Eu
3+deng, wherein ": " represents doping, Ga
2o
3-La
2s
3: Pr
3+, Yb
3+represent Pr
3+and Yb
3+the Ga of codope
2o
3-La
2s
3.
The particle diameter of up-conversion luminescence particle can be 10nm～100nm.The mass percent of up-conversion luminescence particle in light conversion device is 10%～40%.
Up-conversion luminescence particle can directly be bought and obtain from the market.
Light conversion device 120 is for forming visual light path by the laser beam inciding on light conversion device 120 in the interior generation Tyndall effect of light conversion device 120.
Above-mentioned light conversion device 120 can be prepared by the following method: up-conversion luminescence uniform particles is dispersed in silane coupler, then at room temperature add ethanol, water and hydrochloric acid, at 40 DEG C～80 DEG C, place and form after block gel, slowly be warming up to 300 DEG C～700 DEG C, obtain light conversion device 120 after being then incubated 3h～7h.
In the preparation method of above-mentioned light conversion device 120, place the block gel of formation and can in mould, carry out, to form the light conversion device 120 of suitable shape.For example, form the light conversion device 120 with installing hole, this installing hole extends to the inside of light conversion device 120 from the surface of light conversion device 120.Also light conversion device 120 can be prepared into cylinder or cube.Slowly be warming up in the operation of 300 DEG C～700 DEG C, can be slowly warming up to 300 DEG C～700 DEG C to be less than the heating rate of 5 DEG C/min.Silane coupler can be triethoxysilane.The mass ratio of up-conversion luminescence particle and silane coupler can be 1:2～1:10.The mass ratio of ethanol and silane coupler can be 1:2～1:5.By adding hydrochloric acid, pH to 5～6 of regulation system.The time of placing the block gel of formation at 40 DEG C～80 DEG C can be 20h～50h.
The luminescence mechanism of up-conversion luminescence particle is as follows: lower photon of energy of the Electron absorption in ground state of up-conversion luminescence particle is excited to n
1energy level, forms photoelectron, in n
1the photoelectron of energy level further absorbs a photon that energy is lower, is again energized into the n that energy level is higher
2energy level, in n
2the photoelectron of energy level is unstable, can be from n
2energy level transition is returned ground state, and meanwhile, after the photon coupling of absorption, the higher photon of forming energy is released out.The frequency of the photon discharging is higher with respect to the frequency of the photon absorbing, and wavelength shortens, and wave-length coverage becomes visible ray from original infrared light.
In the present embodiment, the surface of light conversion device 120 is formed with the installing hole (figure is mark not) of the inside that extends to light conversion device 120.And installing hole has extended on the center line of light conversion device 120.Sensor 130 is fixed on the bottom of installing hole.Therefore, sensor 130 is fixedly installed on the center line of light conversion device 120.In the present embodiment, the quantity of installing hole is three.The quantity of sensor 130 is three, three sensor 130 intervals and conllinear.Three sensors 130 are fixedly mounted on respectively in three installing holes.The straight line that three sensors are 130 one-tenth is parallel with fixed mount 110.Three sensors 130 are set and can better determine that whether laser optical path is accurate.Certainly at other embodiments, the quantity of sensor 130 also can only have two, and now, installing hole also only needs two.
In other embodiments, sensor 130 also can be fixed on the two ends of light conversion device 120.Now, on light conversion device 120, do not need to arrange installing hole.
Controller 140 and sensor 130 are electrically connected.Controller 140 can be industrial computer.
As shown in Figure 2, the laser optical path control method of an embodiment, comprises the steps:
S10, light conversion device is placed in to laser optical path, laser optical path forms visual light path in light conversion device.
S20, carry out optical path adjusting according to visual light path.
Specifically in the present embodiment, S20 can comprise the following steps:
S22, the sensor being arranged in a linear detect the concurrent power transmission signal of visual light path to controller.
S24, controller judge according to the signal of telecommunication whether sensor all detects visual light path.
S26, if so, controller Output of laser light path accurate information.
S28, if not, regulates laser optical path to incide the angle of light conversion device, until controller Output of laser light path accurate information.
Above-mentioned laser optical path control method is that the laser optical path adjusting device based on shown in Fig. 1 realizes.
Please also refer to Fig. 3, after the reflection of the infrared laser that laser instrument 200 is launched by laser optical path adjusting device 100, total reflection eyeglass 300, arrive cutting head 400.
Please also refer to Fig. 4, in the time that laser optical path 150 tilts through laser optical path adjusting device 100, laser optical path 150 cannot continue to pass through three sensors 130 that are arranged in a linear, and controller 140 shows that laser optical path 150 tilts.Now, can be by adjusting angle or the position of total reflection eyeglass 300, or change laser optical path 150 incides the angle (regulating the angle of laser instrument 200) of conversion block 120, make laser optical path 150 continuously by three sensors 130, until controller 140 Output of laser light path accurate informations, show that laser optical path 150 does not tilt, debugging can complete, and laser optical path 150 is accurate to and reaches cutting head 400.
Please also refer to Fig. 5, when laser optical path 150 accurately passes laser optical path adjusting device 100, laser optical path 150 is by being positioned at three sensors 130 on light conversion device 120 center lines, after laser optical path 150 passes through from three sensors 130, controller 140 obtains the signal of telecommunication, illustrate that laser optical path debugging is normal, controller 140 Output of laser light path accurate informations.
Above-mentioned laser optical path adjusting device 100, Ear Mucosa Treated by He Ne Laser Irradiation is on light conversion device 120 time, in light conversion device, after the energy of 120 up-conversion luminescence particle absorbing laser, launch visible ray, simultaneously, the interior generation Tyndall effect of light conversion device 120, sightless laser optical path is become to visual light path, make light path visible in light conversion device 120, simultaneously, the inside of light conversion device 120 or two ends are also provided with the sensor 130 being arranged in a linear, sensor 130 is the precision of detection laser light path accurately, thereby can make to regulate the process of laser optical path more accurate.Thereby improve Laser Processing precision, avoid the machining accuracy that laser optical path deviation causes to decline, improve production yield rate, promote the market competitiveness of converted products.
Above-mentioned laser optical path control method, simple to operate, light conversion device 120 receives laser optical path and laser optical path is converted to after visual light path, and the adjustment process that can realize laser optical path is visible, and the accurately precision of detection laser light path, is not easy to cause a deviation.
Below for preparing several specific embodiments of light conversion device.
Embodiment 1
By Yb
3+and Er
3+the NaYF of codope
4uniform particles is dispersed in triethoxysilane, then at room temperature adds ethanol, water and hydrochloric acid, and regulating pH is 5.Wherein, Yb
3+and Er
3+the NaYF of codope
4the particle diameter of particle is 10nm.Yb
3+and Er
3+the NaYF of codope
4the mass ratio of particle and triethoxysilane is 1:5, and the mass ratio of ethanol and triethoxysilane is 1:3, at 40 DEG C, places and forms after block gel, is slowly warming up to 300 DEG C with the heating rate of 4 DEG C/min, obtains light conversion device after being then incubated 7h.
The above-mentioned light conversion device preparing is placed in to laser optical path, and the laser beam of incident produces Tyndall effect and forms visual light path in light conversion device.
Embodiment 2
By Al
2o
3: Er
3+uniform particles is dispersed in triethoxysilane, then at room temperature adds ethanol, water and hydrochloric acid, and regulating pH is 6.Wherein, Al
2o
3: Er
3+the particle diameter of particle is 80nm.Al
2o
3: Er
3+the mass ratio of particle and triethoxysilane is 1:10, and the mass ratio of ethanol and triethoxysilane is 1:5, at 80 DEG C, places and forms after block gel, is slowly warming up to 700 DEG C with the heating rate of 5 DEG C/min, obtains light conversion device after being then incubated 3h.
The above-mentioned light conversion device preparing is placed in to laser optical path, and the laser beam of incident produces Tyndall effect and forms visual light path in light conversion device.
Embodiment 3
By GaS:Eu
3+uniform particles is dispersed in triethoxysilane, then at room temperature adds ethanol, water and hydrochloric acid, and regulating pH is 5.5.Wherein, GaS:Eu
3+the particle diameter of particle is 100nm.GaS:Eu
3+the mass ratio of particle and triethoxysilane is 1:2, and the mass ratio of ethanol and triethoxysilane is 1:2, at 50 DEG C, places and forms after block gel, is slowly warming up to 400 DEG C with the heating rate of 5 DEG C/min, obtains light conversion device after being then incubated 4h.
The above-mentioned light conversion device preparing is placed in to laser optical path, and the laser beam of incident produces Tyndall effect and forms visual light path in light conversion device.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (11)
1. a light conversion device, it is characterized in that, comprise the transparent body and be dispersed in the up-conversion luminescence particle in the described transparent body, described light conversion device for producing Tyndall effect and form visual light path inciding laser beam on described light conversion device in described light conversion device.
2. light conversion device according to claim 1, is characterized in that, the described transparent body is glass.
3. light conversion device according to claim 1, is characterized in that, described up-conversion luminescence particle is fluoride particles, oxide particle, halide mixture pellet or the sulfur-containing compound particle for infrared light being changed into visible ray.
4. light conversion device according to claim 1, is characterized in that, the particle diameter of described up-conversion luminescence particle is 10nm～100nm.
5. light conversion device according to claim 1, is characterized in that, the mass percent of described up-conversion luminescence particle in described light conversion device is 10%～40%.
6. the preparation method of a light conversion device, it is characterized in that, comprise the following steps: up-conversion luminescence uniform particles is dispersed in silane coupler, then at room temperature add ethanol, water and hydrochloric acid, at 40 DEG C～80 DEG C, place and form after block gel, slowly be warming up to 300 DEG C～700 DEG C, obtain described light conversion device after being then incubated 3h～7h.
7. the preparation method of light conversion device according to claim 6, is characterized in that, in the described operation that is slowly warming up to 300 DEG C～700 DEG C, is slowly warming up to 300 DEG C～700 DEG C to be less than the heating rate of 5 DEG C/min.
8. a laser optical path adjusting device, it is characterized in that, comprise light conversion device, sensor and controller, described light conversion device comprises the transparent body and is dispersed in the up-conversion luminescence particle in the described transparent body, described light conversion device for producing Tyndall effect and form visual light path inciding laser beam on described light conversion device in described light conversion device, described sensor is fixed on the two ends of described light conversion device or described sensor interval and is fixed on the inside of described light conversion device, described sensor is arranged in a linear, described controller is connected with described sensor electrical.
9. laser optical path adjusting device according to claim 8, it is characterized in that, described light conversion device is cylinder, and the surface of described light conversion device is formed with the installing hole of the inside that extends to described light conversion device, and described sensor is fixed on the bottom of described installing hole.
10. a laser optical path control method, is characterized in that, comprises the steps:
Light conversion device is placed in to laser optical path, and described laser optical path forms visual light path in described light conversion device;
Carry out optical path adjusting according to described visual light path.
11. laser optical path control methods according to claim 10, is characterized in that, the described operation of carrying out optical path adjusting according to described visual light path comprises the steps:
The sensor being arranged in a linear detects the concurrent power transmission signal of described visual light path to controller;
Described controller judges according to the described signal of telecommunication whether described sensor all detects described visual light path;
If so, described controller Output of laser light path accurate information;
If not, regulate described laser optical path to incide the angle of described light conversion device, until described controller is exported described laser optical path accurate information.
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|---|---|---|---|
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|---|---|---|---|
| CN201410226554.3A CN104002040B (en) | 2014-05-26 | 2014-05-26 | Light conversion device and preparation method and application |
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| Publication Number | Publication Date |
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| CN104002040B CN104002040B (en) | 2016-08-24 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118550095A (en) * | 2024-07-24 | 2024-08-27 | 北京大学 | Optical path adjusting device, optical path adjusting method thereof and laser |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171286A (en) * | 1987-01-09 | 1988-07-15 | Mitsubishi Electric Corp | Laser beam machining device |
| US4761054A (en) * | 1984-10-04 | 1988-08-02 | Mitsubishi Denki Kabushiki Kaisha | Infrared fiber cable |
| CN1254831A (en) * | 1998-11-20 | 2000-05-31 | 中国科学院长春物理研究所 | Infrared laser path stereoscopic display |
| CN1376759A (en) * | 2002-04-15 | 2002-10-30 | 清华大学 | Nano-class conversion fluorescence material on fluoride matrix and its preparing process |
| CN1397795A (en) * | 2002-08-16 | 2003-02-19 | 苏州苏大维格数码光学有限公司 | Method and instrument for detecting infrared ascending conversion material |
| CN1415693A (en) * | 2002-12-05 | 2003-05-07 | 苏州大学 | Infrared upward rotating marking material and its prepn. method |
| CN1887498A (en) * | 2006-07-28 | 2007-01-03 | 北京工业大学 | Display method of converting infrared laser path into visible light |
-
2014
- 2014-05-26 CN CN201410226554.3A patent/CN104002040B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4761054A (en) * | 1984-10-04 | 1988-08-02 | Mitsubishi Denki Kabushiki Kaisha | Infrared fiber cable |
| JPS63171286A (en) * | 1987-01-09 | 1988-07-15 | Mitsubishi Electric Corp | Laser beam machining device |
| CN1254831A (en) * | 1998-11-20 | 2000-05-31 | 中国科学院长春物理研究所 | Infrared laser path stereoscopic display |
| CN1376759A (en) * | 2002-04-15 | 2002-10-30 | 清华大学 | Nano-class conversion fluorescence material on fluoride matrix and its preparing process |
| CN1397795A (en) * | 2002-08-16 | 2003-02-19 | 苏州苏大维格数码光学有限公司 | Method and instrument for detecting infrared ascending conversion material |
| CN1415693A (en) * | 2002-12-05 | 2003-05-07 | 苏州大学 | Infrared upward rotating marking material and its prepn. method |
| CN1887498A (en) * | 2006-07-28 | 2007-01-03 | 北京工业大学 | Display method of converting infrared laser path into visible light |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118550095A (en) * | 2024-07-24 | 2024-08-27 | 北京大学 | Optical path adjusting device, optical path adjusting method thereof and laser |
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