CN2553399Y - Multiple wave band laser energy equimultiple radio attenuator - Google Patents
Multiple wave band laser energy equimultiple radio attenuator Download PDFInfo
- Publication number
- CN2553399Y CN2553399Y CN 02210191 CN02210191U CN2553399Y CN 2553399 Y CN2553399 Y CN 2553399Y CN 02210191 CN02210191 CN 02210191 CN 02210191 U CN02210191 U CN 02210191U CN 2553399 Y CN2553399 Y CN 2553399Y
- Authority
- CN
- China
- Prior art keywords
- attenuator
- housing
- light
- adjustable
- attenuating
- 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
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model relates to a multiple wave band laser energy equimultiple radio attenuator. The utility model belongs to a device attenuating the laser energy equimultiplly in the laser application technical field. The technical problem to be solved is that two bunches of laser with different attenuation multiplying powers are obtained simultaneously, and the light emerging position is able to be adjusted according to the need. The technical proposal is that two pairs of attenuating pieces are adopted. Wherein, the elevation angle of one of the attenuating pieces is adjustable. A light selecting sliding blade is provided between the two pairs of attenuating pieces. The light selecting sliding blade is provided with a light penetrating hole and is able to move left and right in the level orientation. The device comprises a shell, an entrance pupil, a front attenuating piece, a light selecting sliding blade, a back attenuating piece and an emergent light sliding blade. The emergent light sliding blade is provided with a light penetrating hole and is able to move left and right through adopting the identical structure as the light selecting sliding blade. The device is able to obtain laser beams with different attenuation multiplying powers. If the attenuating pieces are replaced with different wave bands, laser beams with different attenuation multiplying powers and corresponding wave bands are obtained. Therefore, attenuated lasers in the broad band are obtained and the application needs are achieved.
Description
(1) technical field
The utility model belongs to the device that a kind of in the laser application technique field makes multiplying power decay such as laser energy.
(2) background technology
In opto-electronic conversion, the laser beam that usually needs the fixed attenuation multiplying power is for example tested CCD and is received threshold values as using light source, just needs the LASER Light Source of fixed attenuation multiplying power.
Before the utility model, in the device that obtains fixed attenuation multiplying power laser, with the most approaching prior art of the utility model be Chinese Zhejiang University optics and the development of science engineering contemporary optics instrument National Key Laboratory be used to measure high power " the little distortion light intensity attenuation of laser far field light intensity space distribution and imaging system (seeing Chinese optics journal; rolled up the 6th phase P738-741 in 1998 the 18) ".Form by entrance pupil 1, corrective lens (eye protection) 2, attenuator 3, attenuator 4 (attenuator 3 and 4 constitute attenuators to), corrective lens (eye protection) 5, exit pupil 6 as shown in Figure 1.This device has only a pair of attenuator right, the attenuator that is attenuator 3 and attenuator 4 compositions is right, two stationkeeping is non-adjustable, can only go out the beam of laser of a wave band, and can not export the attenuated laser beam of the multiplying powers such as multi beam of same wave band, this device is regulated inconvenient, and work efficiency is very low, the needs that can not satisfy the modern science experiment or use.
(3) summary of the invention
The technical matters that solves is: require to obtain simultaneously the laser of the above differential declines multiplying power of a wave band two bundles, and can adjust the position of the emergent light of conversion levels direction as required neatly.
The technical scheme of technical solution problem is: adopt two pairs of attenuators right, attenuator centering, the pitch angle adjustable size of a slice attenuator wherein, two pairs of attenuators between install additional one can move left and right on level orientation the smooth tablets of selecting that has light hole, exit pupil also be one level orientation can move left and right the emergent light slide plate that has light hole.
Detailed content of the present utility model is as shown in Figure 2: by housing 8, entrance pupil 7, preceding attenuator to (9,10,11,22,23,24,25,26), select smooth tablets 12, back attenuator that (13,14,15,17,18,19,20,21) and emergent light slide plate 16 are formed.Wherein, preceding attenuator is to attenuator 9, preceding transmissibility of adjustable attenuation piece 10, preceding universal joint 11, preceding fine setting screw rod 22, support column 23, extension spring 24, preceding adjustable damping bar 25, preceding attenuator holder 26 before comprising; Back attenuator is to comprising back attenuator 13, back transmissibility of adjustable attenuation piece 15, rear universal joint 14, back fine setting screw rod 17, support column 18, extension spring 19, back adjustable damping bar 20, back attenuator holder 21.
Entrance pupil 7 is positioned at the position of taking back of the housing horizontal central line of housing 8 left ends, in housing 8 on the direction of propagation of light, before selecting smooth tablets 12 to place attenuator to (9,10,11,22,23,24,25,26) and afterwards attenuator between (13,14,15,17,18,19,20,21), back attenuator places (13,14,15,17,18,19,20,21) and selects between smooth tablets 12 and the emergent light slide plate 16, entrance pupil 7, selects light hole on the smooth tablets 12 and the exit pupil three on the emergent light slide plate 16 on same level height.Emergent light slide plate 16 is positioned near on the horizontal central line of housing 8 right-hand members.
Preceding attenuator centering, preceding attenuator 9 is placed on the preceding attenuator holder 26 that is connected with housing 8 right side inwalls, and the plane of incidence of attenuator 9 is vertical with optical axis before making, keep certain included angle between preceding transmissibility of adjustable attenuation piece 10 and the preceding attenuator 9, the left end of preceding transmissibility of adjustable attenuation piece 10 and the right-hand member of preceding universal joint 11 are connected, the left end and housing 8 inner left wall of preceding universal joint 11 are connected, the right-hand member and the preceding adjustable damping bar 25 of preceding transmissibility of adjustable attenuation piece 10 are connected, before the fine setting screw rod 22 and be fixed on housing 8 right side inwalls on support column 23 between with being threaded, before be to contact between top and the preceding adjustable damping bar 25 of fine setting screw rod 22, the two ends of extension spring 24 are connected with support column 23 and preceding adjustable damping bar 25 respectively.Angle before fine setting screw rod 22 can change before regulating between attenuator 9 and the preceding transmissibility of adjustable attenuation piece 10.
Select on the smooth tablets 12 to have light hole, the face that has light hole is perpendicular to optical axis, selects smooth tablets 12 to horizontally slip along the chute at housings middle part, housing 8 left and right sides, thereby makes light hole move left and right neatly as required.
Back attenuator centering, back attenuator 13 is placed on the back attenuator holder 21 that is connected with housing 8 right side inwalls, and make the plane of incidence of back attenuator 13 vertical with optical axis, keep certain included angle between back transmissibility of adjustable attenuation piece 15 and the back attenuator 13, the right-hand member of the left end of back transmissibility of adjustable attenuation piece 15 and rear universal joint 14 is connected, the left end of rear universal joint 14 and housing 8 inner left wall are connected, be connected between the right-hand member of back transmissibility of adjustable attenuation piece 15 and the back adjustable damping bar 20, back fine setting screw rod 17 and be fixed on housing 8 right side inwalls on support column 18 between with being threaded, be to contact between the top of back fine setting screw rod 17 and the back adjustable damping bar 20, the two ends of extension spring 19 are connected respectively and between support column 18 and the back adjustable damping bar 20, and fine setting screw rod 17 can change the angle between back attenuator 13 and the back transmissibility of adjustable attenuation piece 15 after regulating.
Have light hole on the emergent light slide plate 16, the face that has light hole is perpendicular to optical axis, emergent light slide plate 16 can horizontally slip along the chute on the left and right sides central enclosure of housing 8 right-hand members, thus make on the outgoing smooth tablets 16 light hole as required neatly move left and right change the position.
The principle of work explanation: two attenuator transmitances of attenuator centering are respectively R1 and R2, two attenuators tilt to place at a certain angle, and adjustable included angle, beam of laser incides attenuator to last, transmission and reflection through attenuator two surfaces, it is similar to form a series of light distribution, the beamlet that energy successively decreases step by step, and the energy attenuation multiple of adjacent beams is R1 * R2.Two attenuators are placed the centre and are selected smooth tablets, can choose the arbitrary Shu Jiguang in the adjacent beams arbitrarily, and it is right to enter the next stage attenuator, realize that broadband decays on a large scale.
Good effect: the above laser beam of two bundles that can obtain the differential declines multiplying power simultaneously, if it is right to change the attenuator of different-waveband, can obtain the above laser beam of two bundles of the differential declines multiplying power of corresponding wave band, thereby can obtain the attenuated laser beam of multiband scope, satisfy the needs that scientific experiment and laser are used.
(4) description of drawings
Fig. 1 is the theory structure synoptic diagram of prior art, and Fig. 2 is a top view cross-sectional view of the present utility model, and Figure of abstract also adopts Fig. 2.
(5) embodiment
The utility model adopts structure shown in Figure 2, use in the visible range, the base material of preceding attenuator 9, preceding transmissibility of adjustable attenuation piece 10, back attenuator 13, back transmissibility of adjustable attenuation piece 15 adopts K9 optical glass, uses respective attenuation sheet and transmissibility of adjustable attenuation piece base material employing germanium wafer at infrared region.
One side evaporation transmitance of attenuator and transmissibility of adjustable attenuation piece incident light is the reflectance coating of certain value, opposite side evaporation anti-reflection film, forward and backward universal joint 11 and 14 all adopts the identical universal joint of one degree of freedom, select smooth tablets 12 to adopt identical structure with emergent light slide plate 16, forward and backward fine setting screw rod 22 and 17 adopts the closely-pitched screw rod, and housing 8 adopts aluminium sheet, and forward and backward attenuator holder 26 and 21 adopts cast aluminium, forward and backward adjustable damping bar 25 and 20 adopts cast aluminium.
Claims (5)
1, multiplying power attenuating devices such as a kind of multi-wave band laser energy, be by entrance pupil, attenuator is right, exit pupil is formed, it is characterized in that the utility model is by housing 8, entrance pupil 7, preceding attenuator is to (9,10,11,22,23,24,25,26), select smooth tablets 12, back attenuator is to (13,14,15,17,18,19,20,21) and emergent light slide plate 16 form, entrance pupil 7 is positioned at the position of taking back of the housing horizontal central line of housing 8 left ends, in housing 8 on the direction of propagation of light, attenuator is to (9 before selecting smooth tablets 12 to place, 10,11,22,23,24,25,26) and the back attenuator to (13,14,15,17,18,19,20,21) between, back attenuator is to (13,14,15,17,18,19,20,21) place and select between smooth tablets 12 and the emergent light slide plate 16 entrance pupil 7, select light hole on the smooth tablets 12 and the exit pupil three on the emergent light slide plate 16 on same level height.Emergent light slide plate 16 is positioned near on the housing 8 right-hand member horizontal central lines.
2, by multiplying power attenuating devices such as the described a kind of multi-wave band laser energy of claim 1, it is characterized in that preceding attenuator centering, preceding attenuator 9 is placed on the preceding attenuator holder 26 that is connected with housing 8 right side inwalls, and the plane of incidence of attenuator 9 is vertical with optical axis before making, keep certain included angle between preceding transmissibility of adjustable attenuation piece 10 and the preceding attenuator 9, the left end of preceding transmissibility of adjustable attenuation piece 10 and the right-hand member of preceding universal joint 11 are connected, the left end and housing 8 inner left wall of preceding universal joint 11 are connected, the right-hand member and the preceding adjustable damping bar 25 of preceding transmissibility of adjustable attenuation piece 10 are connected, before the fine setting screw rod 22 and be fixed on housing 8 right side inwalls on support column 23 between with being threaded, before be to contact between top and the preceding adjustable damping bar 25 of fine setting screw rod 22, the two ends of extension spring 24 are connected with support column 23 and preceding adjustable damping bar 25 respectively.
3, by multiplying power attenuating devices such as the described a kind of multi-wave band laser energy of claim 1, it is characterized in that selecting on the smooth tablets 12 and have light hole, the face that has light hole selects smooth tablets 12 to horizontally slip along the chute at housing middle part, housing 8 left and right sides perpendicular to optical axis.
4, by multiplying power attenuating devices such as the described a kind of multi-wave band laser energy of claim 1, it is characterized in that back attenuator centering, back attenuator 13 is placed on the back attenuator holder 21 that is connected with housing 8 right side inwalls, and make the plane of incidence of back attenuator 13 vertical with optical axis, keep certain included angle between back transmissibility of adjustable attenuation piece 15 and the back attenuator 13, the right-hand member of the left end of back transmissibility of adjustable attenuation piece 15 and rear universal joint 14 is connected, the left end of rear universal joint 14 and housing 8 inner left wall are connected, be connected between the right-hand member of back transmissibility of adjustable attenuation piece 15 and the back adjustable damping bar 20, back fine setting screw rod 17 and be fixed on housing 8 right side inwalls on support column 18 between with being threaded, be to contact between the top of back fine setting screw rod 17 and the back adjustable damping bar 20, the two ends of extension spring 19 respectively and support column 18 and afterwards being connected between the adjustable damping bar 20.
5, by multiplying power attenuating devices such as the described a kind of multi-wave band laser energy of claim 1, it is characterized in that having light hole on the emergent light slide plate 16, the face that has light hole is perpendicular to optical axis, and emergent light slide plate 16 can horizontally slip along the chute on the left and right sides central enclosure of housing 8 right-hand members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210191 CN2553399Y (en) | 2002-02-07 | 2002-02-07 | Multiple wave band laser energy equimultiple radio attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210191 CN2553399Y (en) | 2002-02-07 | 2002-02-07 | Multiple wave band laser energy equimultiple radio attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2553399Y true CN2553399Y (en) | 2003-05-28 |
Family
ID=33690446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02210191 Expired - Fee Related CN2553399Y (en) | 2002-02-07 | 2002-02-07 | Multiple wave band laser energy equimultiple radio attenuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2553399Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445941A (en) * | 2015-12-18 | 2016-03-30 | 南京雨花肿瘤防治研究所 | High power laser attenuator |
-
2002
- 2002-02-07 CN CN 02210191 patent/CN2553399Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445941A (en) * | 2015-12-18 | 2016-03-30 | 南京雨花肿瘤防治研究所 | High power laser attenuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0525528B1 (en) | Arrangement for the coherence reduction and the formation of a laser beam | |
| DE112015000994B4 (en) | Systems for multi-beam laser arrangements with variable beam parameter products | |
| DE112014004244B4 (en) | High brightness laser with dense wavelength multiplexing | |
| CN103098319A (en) | Laser beam analysis apparatus | |
| CN208062488U (en) | A kind of semiconductor laser beam merging apparatus | |
| CN204189772U (en) | Dual-wavelength laser annealing device | |
| CN104392914A (en) | Dual-wavelength laser annealing device and method thereof | |
| CN104020566B (en) | The extensive laser beam array duty cycle adjustment device of two dimension | |
| CN101131478A (en) | Novel prism pair pulse chromatic dispersion compensator | |
| DE102012202177B3 (en) | Fiber-to-fiber coupling device exits light beams in the end face entry surface of the light incident side end of the output optical fiber through single lens or ellipsoidal mirror | |
| CN2553399Y (en) | Multiple wave band laser energy equimultiple radio attenuator | |
| WO2001065300A3 (en) | Optical switch having equalized beam spreading in all connections | |
| DE60029638T2 (en) | METHOD AND DEVICE FOR MEASURING THE OPTICAL PERFORMANCE LOSSES IN A FIBER OPTIC CONTACT AGENT | |
| CN115084978A (en) | Multi-pass laser spectrum broadening optical system and method | |
| CN213184959U (en) | Multi-pass laser pulse widening device | |
| DE102005033422B4 (en) | Device for two-sided optical communication | |
| CN107991826A (en) | A kind of device for optical system dispersion compensation and preparation method thereof | |
| RU2684929C1 (en) | Apparatus for compressing optical impulse on diffraction plates with possibility of control of compressed impulse duration | |
| CN108459367B (en) | High-contrast chirped grating and control method for improving chirped pulse contrast | |
| CN100501552C (en) | Compact type pulse dispersion device | |
| CN111562686B (en) | Space light self-adaptive coupling device based on crystal electro-optic effect | |
| WO2005026781A2 (en) | Photonic processors and optical guiding structures for lightwave applications systems and techniques | |
| Arnaud et al. | Guidance of 100-GHz beams by cylindrical mirrors | |
| CN217954828U (en) | Novel laser fast axis collimating lens and laser radar | |
| DE102019116795B3 (en) | AOM system for shifting a frequency of a laser beam and laser system |
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 |