CN1529391A - Laser attenuation filter screening device - Google Patents
Laser attenuation filter screening device Download PDFInfo
- Publication number
- CN1529391A CN1529391A CNA200310108065XA CN200310108065A CN1529391A CN 1529391 A CN1529391 A CN 1529391A CN A200310108065X A CNA200310108065X A CN A200310108065XA CN 200310108065 A CN200310108065 A CN 200310108065A CN 1529391 A CN1529391 A CN 1529391A
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- CN
- China
- Prior art keywords
- motor
- support saddle
- mobile support
- laser
- attenuation filter
- 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.)
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Abstract
The invented device comprises multifunctional flat plate, mobile platform and drive motor. The multifunctional flat plate includes an attenuation filter plate for strong light and an attenuation filter plate for weak light setup at horizontal two symmetrical positions on middle of light barrier. Fixed supporter is in bottom part of the flat plate. Mobile platform consists of two guide rails and two end frames of two rails. A moveable supporter is setup on the two guide rails. A screw rod passing through bolthole on the moveable supporter is setup at middle position of two end frames of two rails actively. First limit switch and second limit switch are setup at inner sides of two end frames of two rails. Multifunctional flat plate is stood at the moveable supporter. Motor drives the screw rod. The device integrates function of keeping off light, attenuating and filtering, providing features of simple equipment, fast adjustment, low cost.
Description
Technical field
The present invention is relevant with high power laser light, the laser attenuation filtering shielding device of particularly a kind of decay that realizes laser, filtering, three kinds of functions of shielding.
Background technology
The device of high power laser that is used for both at home and abroad inertial confinement fusion at present, the refreshing light ∏ device of China for example, the NIF device of the U.S. all will use a large amount of (hundreds ofs) laser acquisition camera (as CCD) is surveyed, diagnosis and surveying work.All there is the laser shielding device these instrument fronts, and as shown in Figure 1, for example light barrier 11, avoid breaking when device macro-energy emission laser target shooting the detection camera.The laser attenuation filter plate also will be equipped with in the camera front, this attenuation filter sheet can be placed on the light path of camera front, also can directly be contained on the camera, (little a lot of when at this time laser intensity is than laser target shooting) help to filter laser stray lights such as daylight in addition when camera detection, diagnosis laser, also can be used for reducing the intensity of laser, in order to avoid the camera image distorted signals makes detection image clearer, the result is more accurate.
The subject matter of present this shielding attenuation system is:
1) baffle plate separates with the attenuation filter sheet, needs a cover fixed support equipment in each comfortable light path, has increased the complexity and the bulk of system, has also improved the cost of device.
2) power owing to laser often will change, and too strong laser and too weak laser all can make the detection distortion of camera, thus often also want manual replacing high light attenuation filter sheet or low light level attenuation filter sheet, so that camera is surveyed.Should increase workload like this, prolong experimental period, and attenuation filter sheet reseting precision is not high can bring error to result of detection yet.
3) shielding of laser, decay will be adjusted respectively, and the adjustment time is long, has reduced conventional efficient.
Summary of the invention
The technical problem to be solved in the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of integrate be in the light, the laser attenuation filtering shielding device of decay, filtering, reach the equipment letter, adjust fast, price is honest and clean.
Technical solution of the present invention is as follows:
A kind of laser attenuation filtering shielding device is characterized in that it is made of multifunctional flat, mobile platform and CD-ROM drive motor:
This multifunctional flat is that by-level two symmetric positions at a light barrier are respectively equipped with high light attenuation filter sheet and low light level attenuation filter sheet constitutes, and its lower edge is a hold-down support;
This mobile platform mainly is configured to by two guide rails and two guide rail ends, one mobile support saddle is set on two guide rails, one screw mandrel passes the screw of mobile support saddle and is arranged on the centre position of two guide rail end framves versatilely, and two inboards of two guide rail end framves are respectively equipped with first limit switch and second limit switch;
The hold-down support of multifunctional flat is fixedly mounted on this mobile support saddle, and then this multifunctional flat is erected on this mobile support saddle;
Described motor forms to drive with this screw mandrel and is connected; The motor drive controller of this motor is provided with and is rotated in the forward button and reverse rotation button;
The position relation of above-mentioned component is as follows:
When the motor driven screw mandrel is rotated in the forward, drive mobile support saddle and move along guide rail, when mobile support saddle contacts with first limit switch, the motor stall, at this moment, laser optical path is just in time aimed at the center of the high light attenuation filter sheet of multifunctional flat; When the reverse rotation of motor driven screw mandrel, drive mobile support saddle and move along guide rail, when mobile support saddle contacts with second limit switch, the motor stall, at this moment, laser optical path is just in time aimed at the center of the low light level attenuation filter sheet of multifunctional flat.
Described motor is also set by motor drive controller: when mobile support saddle arrived the centre position of two guide rails, motor stopped the rotation automatically, made laser attenuation filtering shielding device be in masked state.Have only again to start to be rotated in the forward button or the reverse rotation button just can make laser attenuation filtering shielding device be in high light attenuation filter state, or low light level attenuation filter state.
Technique effect of the present invention is as follows:
This invention can realize functions such as the shielding, decay, filtering of laser before the camera easily, does not need the manual attenuation filter sheet of changing, and action can be controlled automatically; Do not need two cover fixed support equipment, as long as the optics mobile platform of an one dimension is installed in light path yet.
Description of drawings:
Fig. 1 is the laser attenuation filtering shielding harness of refreshing light ∏ device of high power laser, and the attenuation filter sheet here needs often to carry out manual replacing according to the power of laser.
Fig. 2 is that laser attenuation filtering shielding device of the present invention uses schematic diagram.
Fig. 3 is a laser attenuation filtering shielding device schematic top plan view of the present invention.
Fig. 4 is that schematic diagram is looked on a laser attenuation filtering shielding device of the present invention left side.
Fig. 5 is the motor drive controller schematic diagram of laser attenuation filtering shielding device of the present invention
Among the figure:
0-laser attenuation filtering shielding of the present invention device 01-overdamp position 02-screening-off position
03-underdamp position
1-multifunctional flat 11-light barrier 12-high light attenuation filter sheet
13-low light level attenuation filter sheet 14-hold-down support
2-mobile platform 21-guide rail 22-mobile support saddle 23-guide rail end frame 24-screw mandrel
The 25-first limit switch 26-second limit switch 27-motor drive controller
28-is rotated in the forward button 29-reverse rotation button
The 3-motor
The 4-imaging len
5-attenuation filter sheet
The 6-CCD camera
Embodiment
See also Fig. 3 and Fig. 4 earlier, Fig. 3 is a laser attenuation filtering shielding device structure schematic top plan view of the present invention, Fig. 4 is that schematic diagram is looked on a laser attenuation filtering shielding device structure of the present invention left side, and as seen from the figure, laser attenuation filtering shielding device of the present invention is made of multifunctional flat 1, mobile platform 2 and CD-ROM drive motor 3:
This multifunctional flat 1 is that by-level two symmetric positions at a light barrier 11 are respectively equipped with high light attenuation filter sheet 12 and low light level attenuation filter sheet 13 constitutes, and its lower edge is a hold-down support 14;
This mobile platform 2 mainly is made of two guide rails 21 and two guide rail end framves 23, one mobile support saddle 22 is set on two guide rails 21, one screw mandrel 24 passes the screw (not shown) of this mobile support saddle 22 and is arranged on the centre position of two guide rail end framves 23 versatilely, and two inboards of two guide rail end framves 23 are respectively equipped with first limit switch 25 and second limit switch 26;
The hold-down support 14 of this multifunctional flat 1 is fixedly mounted on this mobile support saddle 22, and then this multifunctional flat 1 is erected on this mobile support saddle 22;
Described motor 3 forms to drive with this screw mandrel 24 and is connected; The motor drive controller 27 of this motor 3 is provided with and is rotated in the forward button 28 and reverse rotation button 29, asks for an interview Fig. 5.
Press and be rotated in the forward button 28, motor 3 drives screw mandrel 24 to rotation, drives mobile support saddle 22 and moves along guide rail 21, when mobile support saddle 22 contacts with first limit switch 25, motor 3 stalls, at this moment, laser optical path is just in time aimed at the center of the high light attenuation filter sheet 12 of multifunctional flat 1; Press reverse rotation button 29, motor 3 drives screw mandrel 24 reverse rotations, drives mobile support saddle 22 and moves along guide rail 21, when mobile support saddle 22 contacts with second limit switch 26, motor 3 is also with stall, and at this moment, laser optical path is just in time aimed at the center of the low light level attenuation filter sheet 13 of multifunctional flat 1.
Described motor is also set by motor drive controller 27: when mobile support saddle 22 arrived the centre position 02 of two guide rails 21, motor 3 stopped the rotation automatically, made laser attenuation filtering shielding device of the present invention be in masked state.Have only again to start to be rotated in the forward button 28 or reverse rotation button 29 just can make laser attenuation filtering shielding device be in high light decay position 01, or low light level decay position 03.
Drive screw mandrel 24 by motor 3, can realize multifunctional flat 1 on the hold-down support 14 alternately the resetting of three positions 01,02,03, position 01 is high light decay position, and position 03 is low light level decay position, position 02 is the position of being in the light, and this position 02 should guarantee that laser does not enter CCD camera 6.As long as the design of the position of high light attenuation filter sheet 12 and low light level attenuation filter sheet 13 and 3 positions on the mobile platform is appropriate on the multifunctional flat 1, just can realize following function:
1. the hold-down support 14 when multifunctional flat 1 moves to position 01, and when mobile support saddle 22 contacted with first limit switch 25, high light attenuation filter sheet 12 moved to CCD camera 6 fronts, enters in the laser optical path, realizes the function of high light attenuation filter.
2. when the hold-down support 14 of multifunctional flat 1 moved to position 02, CCD camera 6 was blocked, and the laser of input path can not be mapped on the CCD camera, realized the function of laser shielding.
3. the hold-down support 14 when multifunctional flat 1 moves to position 03, and when mobile support saddle 22 contacted with second limit switch 26, low light level attenuation filter sheet 13 moved to CCD camera 6 fronts, enters in the laser optical path, realizes the function of low light level attenuation filter.
Wherein, hold-down support 14 to the position 01 and the reseting precision of position 03 guarantee by limit switch 25 and limit switch 26, hold-down support 14 is less demanding to the reseting precision of position 02, as long as can make multifunctional flat 1 shielding laser, can stop the rotation realization location of motor 3 by motor drive controller 27.So just can be so that high light attenuation filter sheet 12, low light level attenuation filter sheet 13 and light barrier 11 alternately enter in the incident laser light path.When hold-down support 14 during in position 01, realize the decay and the filtering of high light, when position 02, realized the shielding of laser, when position 03, realize the decay and the filtering of the low light level.
Claims (2)
1, a kind of laser attenuation filtering shielding device is characterized in that it is made of multifunctional flat (1), mobile platform (2) and CD-ROM drive motor (3):
This multifunctional flat (1) is that by-level two symmetric positions at a light barrier (11) are respectively equipped with high light attenuation filter sheet (12) and low light level attenuation filter sheet (13) constitutes, and its lower edge is hold-down support (14);
This mobile platform (2) mainly is made of two guide rails (21) and two guide rail end framves (23), one mobile support saddle (22) is set on two guide rails (21), one screw mandrel (27) passes the screw of mobile support saddle (22) and is arranged on the centre position of two guide rail end framves (23) versatilely, and two inboards of two guide rail end framves (23) are respectively equipped with first limit switch (25) and second limit switch (26);
The hold-down support (14) of multifunctional flat (1) is fixedly mounted on this mobile support saddle (22), and then this multifunctional flat (1) is erected on this mobile support saddle (22);
Described motor (3) forms to drive with this screw mandrel (24) and is connected; The motor drive controller (27) of this motor (3) is provided with and is rotated in the forward button (28) and reverse rotation button (29);
The position relation of above-mentioned component is as follows: when motor (3) drives screw mandrel (24) when being rotated in the forward, driving mobile support saddle (22) moves along guide rail (21), mobile support saddle (22) and first limit switch (25) are when contacting, motor (3) stall, at this moment, laser optical path is just in time aimed at the center of the high light attenuation filter sheet (12) of multifunctional flat (1); When motor (3) drives screw mandrel (24) reverse rotation, driving mobile support saddle (22) moves along guide rail (21), mobile support saddle (22) and second limit switch (26) are when contacting, motor (3) stall, at this moment, laser optical path is just in time aimed at the center of the low light level attenuation filter sheet (13) of multifunctional flat (1).
2, laser attenuation filtering according to claim 1 shielding device, it is characterized in that described motor (3) also by motor drive controller (27) set when the centre position (02) that mobile support saddle (22) arrives two guide rails be motor (3) position of stopping the rotation automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108065 CN1227787C (en) | 2003-10-21 | 2003-10-21 | Laser attenuation filter screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108065 CN1227787C (en) | 2003-10-21 | 2003-10-21 | Laser attenuation filter screening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1529391A true CN1529391A (en) | 2004-09-15 |
| CN1227787C CN1227787C (en) | 2005-11-16 |
Family
ID=34304626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310108065 Expired - Fee Related CN1227787C (en) | 2003-10-21 | 2003-10-21 | Laser attenuation filter screening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1227787C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866891A (en) * | 2016-05-16 | 2016-08-17 | 中国电子科技集团公司第四十研究所 | Two-way linear continuously adjustable light attenuation unit based on reciprocating lead screw |
| CN107238894A (en) * | 2017-07-17 | 2017-10-10 | 中国科学院上海光学精密机械研究所 | A kind of luminous power adjustable damping device |
-
2003
- 2003-10-21 CN CN 200310108065 patent/CN1227787C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866891A (en) * | 2016-05-16 | 2016-08-17 | 中国电子科技集团公司第四十研究所 | Two-way linear continuously adjustable light attenuation unit based on reciprocating lead screw |
| CN107238894A (en) * | 2017-07-17 | 2017-10-10 | 中国科学院上海光学精密机械研究所 | A kind of luminous power adjustable damping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1227787C (en) | 2005-11-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051116 Termination date: 20091123 |